Difuse/u-boot
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Patches by Scott McNutt, 24 Aug 2004:

Browse source 
- Add support for Altera Nios-II processors.
- Add support for Psyent PCI-5441 board.
- Add support for Psyent PK1C20 board.
This commit is contained in:
wdenk 2004-10-10 21:27:30 +00:00
parent 03f5c55021
commit 5c952cf024
65 changed files with 3860 additions and 171 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
CHANGELOG
View file

@ -2,6 +2,11 @@
Changes since U-Boot 1.1.1:
======================================================================
* Patches by Scott McNutt, 24 Aug 2004:
- Add support for Altera Nios-II processors.
- Add support for Psyent PCI-5441 board.
- Add support for Psyent PK1C20 board.
* Patches by Jon Loeliger, 24 Aug 2004:
- Add support for the MPC8541 and MPC8555 CDS boards
- Cleanup eth?addr handling: make dependent on CONFIG_ETH?ADDR

5
CREDITS
View file

@ -286,7 +286,10 @@ D: Support for Samsung ARM920T SMDK2410 eval board
N: Scott McNutt
E: smcnutt@psyent.com
D: Support for Altera Nios-32 CPU, for Nios Cyclone Development Kit (DK-1C20)
D: Support for Altera Nios-32 CPU
D: Support for Altera Nios-II CPU
D: Support for Nios Cyclone Development Kit (DK-1C20)
W: http://www.psyent.com
N: Rolf Offermanns
E: rof@sysgo.de

12
MAINTAINERS
View file

@ -430,6 +430,18 @@ Scott McNutt <smcnutt@psyent.com>
DK1C20 Nios-32
#########################################################################
# Nios-II Systems: #
# #
# Maintainer Name, Email Address #
# Board CPU #
#########################################################################
Scott McNutt <smcnutt@psyent.com>
PCI5441 Nios-II
PK1C20 Nios-II
#########################################################################
# MicroBlaze Systems: #
# #

8
MAKEALL
View file

@ -194,6 +194,12 @@ LIST_nios=" \
DK1S10 DK1S10_standard_32 DK1S10_mtx_ldk_20 \
"
#########################################################################
## Nios-II Systems
#########################################################################
LIST_nios2="PCI5441 PK1C20"
#########################################################################
## MicroBlaze Systems
#########################################################################
@ -226,7 +232,7 @@ do
arm|SA|ARM7|ARM9|pxa|ixp| \
microblaze| \
mips| \
nios| \
nios|nios2| \
x86|I486)
for target in `eval echo '$LIST_'${arg}`
do

12
Makefile
View file

@ -72,6 +72,9 @@ endif
ifeq ($(ARCH),nios)
CROSS_COMPILE = nios-elf-
endif
ifeq ($(ARCH),nios2)
CROSS_COMPILE = nios2-elf-
endif
ifeq ($(ARCH),m68k)
CROSS_COMPILE = m68k-elf-
endif
@ -1477,6 +1480,15 @@ ADNPESC1_config: unconfig
}
@./mkconfig -a ADNPESC1 nios nios adnpesc1 ssv
#########################################################################
## Nios-II
#########################################################################
PK1C20_config : unconfig
@./mkconfig PK1C20 nios2 nios2 pk1c20 psyent
PCI5441_config : unconfig
@./mkconfig PCI5441 nios2 nios2 pci5441 psyent
#========================================================================
# MicroBlaze

10
README
View file

@ -141,6 +141,7 @@ Directory Hierarchy:
- mpc8260 Files specific to Motorola MPC8260 CPUs
- mpc85xx Files specific to Motorola MPC85xx CPUs
- nios Files specific to Altera NIOS CPUs
- nios2 Files specific to Altera Nios-II CPUs
- ppc4xx Files specific to IBM PowerPC 4xx CPUs
- pxa Files specific to Intel XScale PXA CPUs
- s3c44b0 Files specific to Samsung S3C44B0 CPUs
@ -246,6 +247,10 @@ The following options need to be configured:
----------------------
CONFIG_MICROBLAZE
Nios-2 based CPUs:
----------------------
CONFIG_NIOS2
- Board Type: Define exactly one of
@ -306,6 +311,11 @@ The following options need to be configured:
CONFIG_SUZAKU
Nios-2 based boards:
------------------------
CONFIG_PCI5441 CONFIG_PK1C20
- CPU Module Type: (if CONFIG_COGENT is defined)
Define exactly one of

92
board/cds/mpc8541cds/mpc8541cds.c
View file

@ -22,7 +22,6 @@
* MA 02111-1307 USA
*/
#include <common.h>
#include <pci.h>
#include <asm/processor.h>
@ -41,66 +40,56 @@ extern long int spd_sdram(void);
void local_bus_init(void);
void sdram_init(void);
int
board_early_init_f(void)
int board_early_init_f (void)
{
return 0;
return 0;
}
int
checkboard(void)
int checkboard (void)
{
volatile immap_t *immap = (immap_t *)CFG_CCSRBAR;
volatile ccsr_gur_t *gur = &immap->im_gur;
volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
volatile ccsr_gur_t *gur = &immap->im_gur;
/* PCI slot in USER bits CSR[6:7] by convention. */
uint pci_slot = get_pci_slot();
/* PCI slot in USER bits CSR[6:7] by convention. */
uint pci_slot = get_pci_slot ();
uint pci_dual = get_pci_dual(); /* PCI DUAL in CM_PCI[3] */
uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
uint pci1_speed = get_clock_freq(); /* PCI PSPEED in [4:5] */
uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
uint cpu_board_rev = get_cpu_board_revision();
uint cpu_board_rev = get_cpu_board_revision ();
printf("Board: CDS Version 0x%02x, PCI Slot %d\n",
get_board_version(),
pci_slot);
printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
get_board_version (), pci_slot);
printf("CPU Board Revision %d.%d (0x%04x)\n",
MPC85XX_CPU_BOARD_MAJOR(cpu_board_rev),
MPC85XX_CPU_BOARD_MINOR(cpu_board_rev),
cpu_board_rev);
printf ("CPU Board Revision %d.%d (0x%04x)\n",
MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
printf(" PCI1: %d bit, %s MHz, %s\n",
(pci1_32) ? 32 : 64,
(pci1_speed == 33000000) ? "33" :
(pci1_speed == 66000000) ? "66" : "unknown",
pci1_clk_sel ? "sync" : "async"
);
printf (" PCI1: %d bit, %s MHz, %s\n",
(pci1_32) ? 32 : 64,
(pci1_speed == 33000000) ? "33" :
(pci1_speed == 66000000) ? "66" : "unknown",
pci1_clk_sel ? "sync" : "async");
if (pci_dual) {
printf(" PCI2: 32 bit, 66 MHz, %s\n",
pci2_clk_sel ? "sync" : "async"
);
} else {
printf(" PCI2: disabled\n");
}
if (pci_dual) {
printf (" PCI2: 32 bit, 66 MHz, %s\n",
pci2_clk_sel ? "sync" : "async");
} else {
printf (" PCI2: disabled\n");
}
/*
* Initialize local bus.
*/
local_bus_init();
/*
* Initialize local bus.
*/
local_bus_init ();
return 0;
return 0;
}
long int
initdram(int board_type)
{
@ -125,18 +114,14 @@ initdram(int board_type)
udelay(200);
}
#endif
dram_size = spd_sdram();
#if defined(CONFIG_DDR_ECC)
/*
* Initialize and enable DDR ECC.
*/
ddr_enable_ecc(dram_size);
#endif
/*
* SDRAM Initialization
*/
@ -146,11 +131,9 @@ initdram(int board_type)
return dram_size;
}
/*
* Initialize Local Bus
*/
void
local_bus_init(void)
{
@ -196,11 +179,9 @@ local_bus_init(void)
}
}
/*
* Initialize SDRAM memory on the Local Bus.
*/
void
sdram_init(void)
{
@ -292,7 +273,6 @@ sdram_init(void)
#endif /* enable SDRAM init */
}
#if defined(CFG_DRAM_TEST)
int
testdram(void)
@ -332,8 +312,6 @@ testdram(void)
}
#endif
#if defined(CONFIG_PCI)
/*
@ -352,7 +330,6 @@ static struct pci_config_table pci_mpc85xxcds_config_table[] = {
};
#endif
static struct pci_controller hose = {
#ifndef CONFIG_PCI_PNP
config_table: pci_mpc85xxcds_config_table,
@ -361,7 +338,6 @@ static struct pci_controller hose = {
#endif /* CONFIG_PCI */
void
pci_init_board(void)
{

93
board/cds/mpc8555cds/mpc8555cds.c
View file

@ -20,7 +20,6 @@
* MA 02111-1307 USA
*/
#include <common.h>
#include <pci.h>
#include <asm/processor.h>
@ -39,66 +38,56 @@ extern long int spd_sdram(void);
void local_bus_init(void);
void sdram_init(void);
int
board_early_init_f(void)
int board_early_init_f (void)
{
return 0;
return 0;
}
int
checkboard(void)
int checkboard (void)
{
volatile immap_t *immap = (immap_t *)CFG_CCSRBAR;
volatile ccsr_gur_t *gur = &immap->im_gur;
volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
volatile ccsr_gur_t *gur = &immap->im_gur;
/* PCI slot in USER bits CSR[6:7] by convention. */
uint pci_slot = get_pci_slot();
/* PCI slot in USER bits CSR[6:7] by convention. */
uint pci_slot = get_pci_slot ();
uint pci_dual = get_pci_dual(); /* PCI DUAL in CM_PCI[3] */
uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
uint pci_dual = get_pci_dual (); /* PCI DUAL in CM_PCI[3] */
uint pci1_32 = gur->pordevsr & 0x10000; /* PORDEVSR[15] */
uint pci1_clk_sel = gur->porpllsr & 0x8000; /* PORPLLSR[16] */
uint pci2_clk_sel = gur->porpllsr & 0x4000; /* PORPLLSR[17] */
uint pci1_speed = get_clock_freq(); /* PCI PSPEED in [4:5] */
uint pci1_speed = get_clock_freq (); /* PCI PSPEED in [4:5] */
uint cpu_board_rev = get_cpu_board_revision();
uint cpu_board_rev = get_cpu_board_revision ();
printf("Board: CDS Version 0x%02x, PCI Slot %d\n",
get_board_version(),
pci_slot);
printf ("Board: CDS Version 0x%02x, PCI Slot %d\n",
get_board_version (), pci_slot);
printf("CPU Board Revision %d.%d (0x%04x)\n",
MPC85XX_CPU_BOARD_MAJOR(cpu_board_rev),
MPC85XX_CPU_BOARD_MINOR(cpu_board_rev),
cpu_board_rev);
printf ("CPU Board Revision %d.%d (0x%04x)\n",
MPC85XX_CPU_BOARD_MAJOR (cpu_board_rev),
MPC85XX_CPU_BOARD_MINOR (cpu_board_rev), cpu_board_rev);
printf(" PCI1: %d bit, %s MHz, %s\n",
(pci1_32) ? 32 : 64,
(pci1_speed == 33000000) ? "33" :
(pci1_speed == 66000000) ? "66" : "unknown",
pci1_clk_sel ? "sync" : "async"
);
printf (" PCI1: %d bit, %s MHz, %s\n",
(pci1_32) ? 32 : 64,
(pci1_speed == 33000000) ? "33" :
(pci1_speed == 66000000) ? "66" : "unknown",
pci1_clk_sel ? "sync" : "async");
if (pci_dual) {
printf(" PCI2: 32 bit, 66 MHz, %s\n",
pci2_clk_sel ? "sync" : "async"
);
} else {
printf(" PCI2: disabled\n");
}
if (pci_dual) {
printf (" PCI2: 32 bit, 66 MHz, %s\n",
pci2_clk_sel ? "sync" : "async");
} else {
printf (" PCI2: disabled\n");
}
/*
* Initialize local bus.
*/
local_bus_init();
/*
* Initialize local bus.
*/
local_bus_init ();
return 0;
return 0;
}
long int
initdram(int board_type)
{
@ -123,18 +112,14 @@ initdram(int board_type)
udelay(200);
}
#endif
dram_size = spd_sdram();
#if defined(CONFIG_DDR_ECC)
/*
* Initialize and enable DDR ECC.
*/
ddr_enable_ecc(dram_size);
#endif
/*
* SDRAM Initialization
*/
@ -144,11 +129,9 @@ initdram(int board_type)
return dram_size;
}
/*
* Initialize Local Bus
*/
void
local_bus_init(void)
{
@ -194,11 +177,9 @@ local_bus_init(void)
}
}
/*
* Initialize SDRAM memory on the Local Bus.
*/
void
sdram_init(void)
{
@ -227,7 +208,6 @@ sdram_init(void)
lbc->lbcr = CFG_LBC_LBCR;
asm("msync");
lbc->lsrt = CFG_LBC_LSRT;
lbc->mrtpr = CFG_LBC_MRTPR;
asm("msync");
@ -290,7 +270,6 @@ sdram_init(void)
#endif /* enable SDRAM init */
}
#if defined(CFG_DRAM_TEST)
int
testdram(void)
@ -330,8 +309,6 @@ testdram(void)
}
#endif
#if defined(CONFIG_PCI)
/*
@ -350,7 +327,6 @@ static struct pci_config_table pci_mpc85xxcds_config_table[] = {
};
#endif
static struct pci_controller hose = {
#ifndef CONFIG_PCI_PNP
config_table: pci_mpc85xxcds_config_table,
@ -359,7 +335,6 @@ static struct pci_controller hose = {
#endif /* CONFIG_PCI */
void
pci_init_board(void)
{

197
board/psyent/common/AMDLV065D.c Normal file
View file

@ -0,0 +1,197 @@
/*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#if defined(CONFIG_NIOS)
#include <nios.h>
#else
#include <nios2.h>
#endif
#define SECTSZ (64 * 1024)
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
/*----------------------------------------------------------------------*/
unsigned long flash_init (void)
{
int i;
unsigned long addr;
flash_info_t *fli = &flash_info[0];
fli->size = CFG_FLASH_SIZE;
fli->sector_count = CFG_MAX_FLASH_SECT;
fli->flash_id = FLASH_MAN_AMD + FLASH_AMDLV065D;
addr = CFG_FLASH_BASE;
for (i = 0; i < fli->sector_count; ++i) {
fli->start[i] = addr;
addr += SECTSZ;
fli->protect[i] = 1;
}
return (CFG_FLASH_SIZE);
}
/*--------------------------------------------------------------------*/
void flash_print_info (flash_info_t * info)
{
int i, k;
unsigned long size;
int erased;
volatile unsigned char *flash;
printf (" Size: %ld KB in %d Sectors\n",
info->size >> 10, info->sector_count);
printf (" Sector Start Addresses:");
for (i = 0; i < info->sector_count; ++i) {
/* Check if whole sector is erased */
if (i != (info->sector_count - 1))
size = info->start[i + 1] - info->start[i];
else
size = info->start[0] + info->size - info->start[i];
erased = 1;
flash = (volatile unsigned char *) CACHE_BYPASS(info->start[i]);
for (k = 0; k < size; k++) {
if (*flash++ != 0xff) {
erased = 0;
break;
}
}
/* Print the info */
if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s%s",
CACHE_NO_BYPASS(info->start[i]),
erased ? " E" : " ",
info->protect[i] ? "RO " : " ");
}
printf ("\n");
}
/*-------------------------------------------------------------------*/
int flash_erase (flash_info_t * info, int s_first, int s_last)
{
volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *)
CACHE_BYPASS(info->start[0]);
volatile CFG_FLASH_WORD_SIZE *addr2;
int prot, sect;
ulong start;
/* Some sanity checking */
if ((s_first < 0) || (s_first > s_last)) {
printf ("- no sectors to erase\n");
return 1;
}
prot = 0;
for (sect = s_first; sect <= s_last; ++sect) {
if (info->protect[sect]) {
prot++;
}
}
if (prot) {
printf ("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
printf ("\n");
}
/* It's ok to erase multiple sectors provided we don't delay more
* than 50 usec between cmds ... at which point the erase time-out
* occurs. So don't go and put printf() calls in the loop ... it
* won't be very helpful ;-)
*/
for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr2 = (CFG_FLASH_WORD_SIZE *)
CACHE_BYPASS((info->start[sect]));
*addr = 0xaa;
*addr = 0x55;
*addr = 0x80;
*addr = 0xaa;
*addr = 0x55;
*addr2 = 0x30;
/* Now just wait for 0xff & provide some user
* feedback while we wait.
*/
start = get_timer (0);
while (*addr2 != 0xff) {
udelay (1000 * 1000);
putc ('.');
if (get_timer (start) > CFG_FLASH_ERASE_TOUT) {
printf ("timeout\n");
return 1;
}
}
}
}
printf ("\n");
return 0;
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
vu_char *cmd = (vu_char *) CACHE_BYPASS(info->start[0]);
vu_char *dst = (vu_char *) CACHE_BYPASS(addr);
unsigned char b;
ulong start;
while (cnt) {
/* Check for sufficient erase */
b = *src;
if ((*dst & b) != b) {
printf ("%02x : %02x\n", *dst, b);
return (2);
}
*cmd = 0xaa;
*cmd = 0x55;
*cmd = 0xa0;
*dst = b;
/* Verify write */
start = get_timer (0);
while (*dst != b) {
if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
return 1;
}
}
dst++;
src++;
cnt--;
}
return (0);
}

50
board/psyent/pci5441/Makefile Normal file
View file

@ -0,0 +1,50 @@
#
# (C) Copyright 2001-2004
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
COMOBJS := ../common/AMDLV065D.o
OBJS := $(BOARD).o $(COMOBJS)
SOBJS =
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $^
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
-include .depend
#########################################################################

31
board/psyent/pci5441/config.mk Normal file
View file

@ -0,0 +1,31 @@
#
# (C) Copyright 2004, Psyent Corporation <www.psyent.com>
# Scott McNutt <smcnutt@psyent.com>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
TEXT_BASE = 0x018e0000
PLATFORM_CPPFLAGS += -mno-hw-div -mno-hw-mul
PLATFORM_CPPFLAGS += -I$(TOPDIR)/board/$(VENDOR)/include
ifeq ($(debug),1)
PLATFORM_CPPFLAGS += -DDEBUG
endif

40
board/psyent/pci5441/pci5441.c Normal file
View file

@ -0,0 +1,40 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
int board_early_init_f (void)
{
return 0;
}
int checkboard (void)
{
puts ("BOARD : Psyent PCI-5441\n");
return 0;
}
long int initdram (int board_type)
{
return (0);
}

136
board/psyent/pci5441/u-boot.lds Normal file
View file

@ -0,0 +1,136 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_FORMAT("elf32-littlenios2")
OUTPUT_ARCH(nios2)
ENTRY(_start)
SECTIONS
{
.text :
{
cpu/nios2/start.o (.text)
*(.text)
*(.text.*)
*(.gnu.linkonce.t*)
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
}
. = ALIGN (4);
_etext = .;
PROVIDE (etext = .);
/* CMD TABLE - sandwich this in between text and data so
* the initialization code relocates the command table as
* well -- admittedly, this is just pure laziness ;-)
*/
__u_boot_cmd_start = .;
.u_boot_cmd :
{
*(.u_boot_cmd)
}
. = ALIGN(4);
__u_boot_cmd_end = .;
/* INIT DATA sections - "Small" data (see the gcc -G option)
* is always gp-relative. Here we make all init data sections
* adjacent to simplify the startup code -- and provide
* the global pointer for gp-relative access.
*/
_data = .;
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
}
. = ALIGN(16);
_gp = .; /* Global pointer addr */
PROVIDE (gp = .);
.sdata :
{
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
}
. = ALIGN(4);
_edata = .;
PROVIDE (edata = .);
/* UNINIT DATA - Small uninitialized data is first so it's
* adjacent to sdata and can be referenced via gp. The normal
* bss follows. We keep it adjacent to simplify init code.
*/
__bss_start = .;
.sbss :
{
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
}
. = ALIGN(4);
.bss :
{
*(.bss)
*(.bss.*)
*(.dynbss)
*(COMMON)
*(.scommon)
}
. = ALIGN(4);
_end = .;
PROVIDE (end = .);
/* DEBUG -- symbol table, string table, etc. etc.
*/
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
}

50
board/psyent/pk1c20/Makefile Normal file
View file

@ -0,0 +1,50 @@
#
# (C) Copyright 2001-2004
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(BOARD).a
COMOBJS := ../common/AMDLV065D.o
OBJS := $(BOARD).o led.o $(COMOBJS)
SOBJS =
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $^
clean:
rm -f $(SOBJS) $(OBJS)
distclean: clean
rm -f $(LIB) core *.bak .depend
#########################################################################
.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
-include .depend
#########################################################################

31
board/psyent/pk1c20/config.mk Normal file
View file

@ -0,0 +1,31 @@
#
# (C) Copyright 2004, Psyent Corporation <www.psyent.com>
# Scott McNutt <smcnutt@psyent.com>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
TEXT_BASE = 0x018e0000
PLATFORM_CPPFLAGS += -mno-hw-div -mno-hw-mul
PLATFORM_CPPFLAGS += -I$(TOPDIR)/board/$(VENDOR)/include
ifeq ($(debug),1)
PLATFORM_CPPFLAGS += -DDEBUG
endif

62
board/psyent/pk1c20/led.c Normal file
View file

@ -0,0 +1,62 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <nios2.h>
#include <nios2-io.h>
#include <status_led.h>
/* The LED port is configured as output only, so we
* must track the state manually.
*/
static led_id_t val = 0;
void __led_init (led_id_t mask, int state)
{
nios_pio_t *pio = (nios_pio_t *)CACHE_BYPASS(CFG_LEDPIO_ADDR);
if (state == STATUS_LED_ON)
val &= ~mask;
else
val |= mask;
pio->data = val;
}
void __led_set (led_id_t mask, int state)
{
nios_pio_t *pio = (nios_pio_t *)CACHE_BYPASS(CFG_LEDPIO_ADDR);
if (state == STATUS_LED_ON)
val &= ~mask;
else
val |= mask;
pio->data = val;
}
void __led_toggle (led_id_t mask)
{
nios_pio_t *pio = (nios_pio_t *)CACHE_BYPASS(CFG_LEDPIO_ADDR);
val ^= mask;
pio->data = val;
}

40
board/psyent/pk1c20/pk1c20.c Normal file
View file

@ -0,0 +1,40 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
int board_early_init_f (void)
{
return 0;
}
int checkboard (void)
{
puts ("BOARD : Psyent PK-1C20\n");
return 0;
}
long int initdram (int board_type)
{
return (0);
}

136
board/psyent/pk1c20/u-boot.lds Normal file
View file

@ -0,0 +1,136 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_FORMAT("elf32-littlenios2")
OUTPUT_ARCH(nios2)
ENTRY(_start)
SECTIONS
{
.text :
{
cpu/nios2/start.o (.text)
*(.text)
*(.text.*)
*(.gnu.linkonce.t*)
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
}
. = ALIGN (4);
_etext = .;
PROVIDE (etext = .);
/* CMD TABLE - sandwich this in between text and data so
* the initialization code relocates the command table as
* well -- admittedly, this is just pure laziness ;-)
*/
__u_boot_cmd_start = .;
.u_boot_cmd :
{
*(.u_boot_cmd)
}
. = ALIGN(4);
__u_boot_cmd_end = .;
/* INIT DATA sections - "Small" data (see the gcc -G option)
* is always gp-relative. Here we make all init data sections
* adjacent to simplify the startup code -- and provide
* the global pointer for gp-relative access.
*/
_data = .;
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
}
. = ALIGN(16);
_gp = .; /* Global pointer addr */
PROVIDE (gp = .);
.sdata :
{
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
}
. = ALIGN(4);
_edata = .;
PROVIDE (edata = .);
/* UNINIT DATA - Small uninitialized data is first so it's
* adjacent to sdata and can be referenced via gp. The normal
* bss follows. We keep it adjacent to simplify init code.
*/
__bss_start = .;
.sbss :
{
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
}
. = ALIGN(4);
.bss :
{
*(.bss)
*(.bss.*)
*(.dynbss)
*(COMMON)
*(.scommon)
}
. = ALIGN(4);
_end = .;
PROVIDE (end = .);
/* DEBUG -- symbol table, string table, etc. etc.
*/
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
}

33
common/cmd_bdinfo.c
View file

@ -140,6 +140,39 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 0;
}
#elif defined(CONFIG_NIOS2) /* Nios-II */
int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
DECLARE_GLOBAL_DATA_PTR;
int i;
bd_t *bd = gd->bd;
print_num ("mem start", (ulong)bd->bi_memstart);
print_num ("mem size", (ulong)bd->bi_memsize);
print_num ("flash start", (ulong)bd->bi_flashstart);
print_num ("flash size", (ulong)bd->bi_flashsize);
print_num ("flash offset", (ulong)bd->bi_flashoffset);
#if defined(CFG_SRAM_BASE)
print_num ("sram start", (ulong)bd->bi_sramstart);
print_num ("sram size", (ulong)bd->bi_sramsize);
#endif
#if defined(CFG_CMD_NET)
puts ("ethaddr =");
for (i=0; i<6; ++i) {
printf ("%c%02X", i ? ':' : ' ', bd->bi_enetaddr[i]);
}
puts ("\nip_addr = ");
print_IPaddr (bd->bi_ip_addr);
#endif
printf ("\nbaudrate = %ld bps\n", bd->bi_baudrate);
return 0;
}
#else /* ! PPC, which leaves MIPS */

2
common/cmd_bootm.c
View file

@ -244,6 +244,8 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
if (hdr->ih_arch != IH_CPU_M68K)
#elif defined(__microblaze__)
if (hdr->ih_arch != IH_CPU_MICROBLAZE)
#elif defined(__nios2__)
if (hdr->ih_arch != IH_CPU_NIOS2)
#else
# error Unknown CPU type
#endif

1
cpu/mpc85xx/pci.c
View file

@ -114,7 +114,6 @@ pci_mpc85xx_init(struct pci_controller *hose)
PCI_HEADER_TYPE,
&header_type);
}
#endif
hose->last_busno = pci_hose_scan(hose);

44
cpu/nios2/Makefile Normal file
View file

@ -0,0 +1,44 @@
#
# (C) Copyright 2000
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(CPU).a
START = start.o
AOBJS = exceptions.o
OBJS = cpu.o interrupts.o serial.o traps.o
all: .depend $(START) $(LIB)
$(LIB): $(OBJS) $(AOBJS)
$(AR) crv $@ $(OBJS) $(AOBJS)
#########################################################################
.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c) $(AOBJS:.o=.S)
$(CC) -M $(CFLAGS) $(START:.o=.S) $(OBJS:.o=.c) $(AOBJS:.o=.S) > $@
sinclude .depend
#########################################################################

24
cpu/nios2/config.mk Normal file
View file

@ -0,0 +1,24 @@
#
# (C) Copyright 2000
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
PLATFORM_RELFLAGS +=

62
cpu/nios2/cpu.c Normal file
View file

@ -0,0 +1,62 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <nios2.h>
#include <nios2-io.h>
#if defined (CFG_NIOS_SYSID_BASE)
#include <linux/time.h>
static void check_sysid (void)
{
struct nios_sysid_t *sysid =
(struct nios_sysid_t *)CACHE_BYPASS(CFG_NIOS_SYSID_BASE);
struct tm t;
char asc[32];
localtime_r ((time_t *)&sysid->timestamp, &t);
asctime_r (&t, asc);
printf ("SYSID : %08x, %s", sysid->id, asc);
}
#endif /* CFG_NIOS_SYSID_BASE */
int checkcpu (void)
{
printf ("CPU : Nios-II\n");
#if !defined(CFG_NIOS_SYSID_BASE)
printf ("SYSID : <unknown>\n");
#else
check_sysid ();
#endif
return (0);
}
int do_reset (void)
{
void (*rst)(void) = (void(*)(void))CFG_RESET_ADDR;
disable_interrupts ();
rst();
return(0);
}

152
cpu/nios2/exceptions.S Normal file
View file

@ -0,0 +1,152 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <asm/opcodes.h>
.text
.align 4
.global _exception
_exception:
/* SAVE ALL REGS -- this allows trap and unimplemented
* instruction handlers to be coded conveniently in C
*/
addi sp, sp, -(33*4)
stw r0, 0(sp)
stw r1, 4(sp)
stw r2, 8(sp)
stw r3, 12(sp)
stw r4, 16(sp)
stw r5, 20(sp)
stw r6, 24(sp)
stw r7, 28(sp)
stw r8, 32(sp)
stw r9, 36(sp)
stw r10, 40(sp)
stw r11, 44(sp)
stw r12, 48(sp)
stw r13, 52(sp)
stw r14, 56(sp)
stw r15, 60(sp)
stw r16, 64(sp)
stw r17, 68(sp)
stw r19, 72(sp)
stw r19, 76(sp)
stw r20, 80(sp)
stw r21, 84(sp)
stw r22, 88(sp)
stw r23, 92(sp)
stw r24, 96(sp)
stw r25, 100(sp)
stw r26, 104(sp)
stw r27, 108(sp)
stw r28, 112(sp)
stw r29, 116(sp)
stw r30, 120(sp)
stw r31, 124(sp)
rdctl et, estatus
stw et, 128(sp)
/* If interrupts are disabled -- software interrupt */
rdctl et, estatus
andi et, et, 1
beq et, r0, 0f
/* If no interrupts are pending -- software interrupt */
rdctl et, ipending
beq et, r0, 0f
/* HARDWARE INTERRUPT: Call interrupt handler */
movhi r3, %hi(external_interrupt)
ori r3, r3, %lo(external_interrupt)
mov r4, sp /* ptr to regs */
callr r3
/* Return address fixup: execution resumes by re-issue of
* interrupted instruction at ea-4 (ea == r29). Here we do
* simple fixup to allow common exception return.
*/
ldw r3, 116(sp)
addi r3, r3, -4
stw r3, 116(sp)
br _exception_return
0:
/* TRAP EXCEPTION */
movhi r3, %hi(OPC_TRAP)
ori r3, r3, %lo(OPC_TRAP)
addi r1, ea, -4
ldw r1, 0(r1)
bne r1, r3, 1f
movhi r3, %hi(trap_handler)
ori r3, r3, %lo(trap_handler)
mov r4, sp /* ptr to regs */
callr r3
br _exception_return
1:
/* UNIMPLEMENTED INSTRUCTION EXCEPTION */
movhi r3, %hi(soft_emulation)
ori r3, r3, %lo(soft_emulation)
mov r4, sp /* ptr to regs */
callr r3
/* Restore regsisters and return from exception*/
_exception_return:
ldw r1, 4(sp)
ldw r2, 8(sp)
ldw r3, 12(sp)
ldw r4, 16(sp)
ldw r5, 20(sp)
ldw r6, 24(sp)
ldw r7, 28(sp)
ldw r8, 32(sp)
ldw r9, 36(sp)
ldw r10, 40(sp)
ldw r11, 44(sp)
ldw r12, 48(sp)
ldw r13, 52(sp)
ldw r14, 56(sp)
ldw r15, 60(sp)
ldw r16, 64(sp)
ldw r17, 68(sp)
ldw r19, 72(sp)
ldw r19, 76(sp)
ldw r20, 80(sp)
ldw r21, 84(sp)
ldw r22, 88(sp)
ldw r23, 92(sp)
ldw r24, 96(sp)
ldw r25, 100(sp)
ldw r26, 104(sp)
ldw r27, 108(sp)
ldw r28, 112(sp)
ldw r29, 116(sp)
ldw r30, 120(sp)
ldw r31, 124(sp)
addi sp, sp, (33*4)
eret
/*-------------------------------------------------------------*/

229
cpu/nios2/interrupts.c Normal file
View file

@ -0,0 +1,229 @@
/*
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <nios2.h>
#include <nios2-io.h>
#include <asm/ptrace.h>
#include <common.h>
#include <command.h>
#include <watchdog.h>
#ifdef CONFIG_STATUS_LED
#include <status_led.h>
#endif
#if defined(CFG_NIOS_TMRBASE) && !defined(CFG_NIOS_TMRIRQ)
#error CFG_NIOS_TMRIRQ not defined (see documentation)
#endif
/****************************************************************************/
struct irq_action {
interrupt_handler_t *handler;
void *arg;
int count;
};
static struct irq_action vecs[32];
/*************************************************************************/
volatile ulong timestamp = 0;
void reset_timer (void)
{
timestamp = 0;
}
ulong get_timer (ulong base)
{
WATCHDOG_RESET ();
return (timestamp - base);
}
void set_timer (ulong t)
{
timestamp = t;
}
/* The board must handle this interrupt if a timer is not
* provided.
*/
#if defined(CFG_NIOS_TMRBASE)
void tmr_isr (void *arg)
{
nios_timer_t *tmr = (nios_timer_t *)arg;
/* Interrupt is cleared by writing anything to the
* status register.
*/
tmr->status = 0;
timestamp += CFG_NIOS_TMRMS;
#ifdef CONFIG_STATUS_LED
status_led_tick(timestamp);
#endif
}
static void tmr_init (void)
{
nios_timer_t *tmr =(nios_timer_t *)CACHE_BYPASS(CFG_NIOS_TMRBASE);
tmr->control &= ~(NIOS_TIMER_START | NIOS_TIMER_ITO);
tmr->control |= NIOS_TIMER_STOP;
#if defined(CFG_NIOS_TMRCNT)
tmr->periodl = CFG_NIOS_TMRCNT & 0xffff;
tmr->periodh = (CFG_NIOS_TMRCNT >> 16) & 0xffff;
#endif
tmr->control |= ( NIOS_TIMER_ITO |
NIOS_TIMER_CONT |
NIOS_TIMER_START );
irq_install_handler (CFG_NIOS_TMRIRQ, tmr_isr, (void *)tmr);
}
#endif /* CFG_NIOS_TMRBASE */
/*************************************************************************/
int disable_interrupts (void)
{
int val = rdctl (CTL_STATUS);
wrctl (CTL_STATUS, val & ~STATUS_IE);
return (val & STATUS_IE);
}
void enable_interrupts( void )
{
int val = rdctl (CTL_STATUS);
wrctl (CTL_STATUS, val | STATUS_IE);
}
void external_interrupt (struct pt_regs *regs)
{
unsigned irqs;
struct irq_action *act;
/* Evaluate only irqs that are both enabled AND pending */
irqs = rdctl (CTL_IENABLE) & rdctl (CTL_IPENDING);
act = vecs;
/* Assume (as does the Nios2 HAL) that bit 0 is highest
* priority. NOTE: There is ALWAYS a handler assigned
* (the default if no other).
*/
while (irqs) {
if (irqs & 1) {
act->handler (act->arg);
act->count++;
}
irqs >>=1;
act++;
}
}
static void def_hdlr (void *arg)
{
unsigned irqs = rdctl (CTL_IENABLE);
/* Disable the individual interrupt -- with gratuitous
* warning.
*/
irqs &= ~(1 << (int)arg);
wrctl (CTL_IENABLE, irqs);
printf ("WARNING: Disabling unhandled interrupt: %d\n",
(int)arg);
}
/*************************************************************************/
void irq_install_handler (int irq, interrupt_handler_t *hdlr, void *arg)
{
int flag;
struct irq_action *act;
unsigned ena = rdctl (CTL_IENABLE);
if ((irq < 0) || (irq > 31))
return;
act = &vecs[irq];
flag = disable_interrupts ();
if (hdlr) {
act->handler = hdlr;
act->arg = arg;
ena |= (1 << irq); /* enable */
} else {
act->handler = def_hdlr;
act->arg = (void *)irq;
ena &= ~(1 << irq); /* disable */
}
wrctl (CTL_IENABLE, ena);
if (flag) enable_interrupts ();
}
int interrupt_init (void)
{
int i;
/* Assign the default handler to all */
for (i = 0; i < 32; i++) {
vecs[i].handler = def_hdlr;
vecs[i].arg = (void *)i;
vecs[i].count = 0;
}
#if defined(CFG_NIOS_TMRBASE)
tmr_init ();
#endif
enable_interrupts ();
return (0);
}
/*************************************************************************/
#if (CONFIG_COMMANDS & CFG_CMD_IRQ)
int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int i;
struct irq_action *act = vecs;
printf ("\nInterrupt-Information:\n\n");
printf ("Nr Routine Arg Count\n");
printf ("-----------------------------\n");
for (i=0; i<32; i++) {
if (act->handler != def_hdlr) {
printf ("%02d %08lx %08lx %d\n",
i,
(ulong)act->handler,
(ulong)act->arg,
act->count);
}
act++;
}
printf ("\n");
return (0);
}
#endif /* CONFIG_COMMANDS & CFG_CMD_IRQ */

144
cpu/nios2/serial.c Normal file
View file

@ -0,0 +1,144 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <watchdog.h>
#include <nios2.h>
#include <nios2-io.h>
/*------------------------------------------------------------------
* JTAG acts as the serial port
*-----------------------------------------------------------------*/
#if defined(CONFIG_CONSOLE_JTAG)
static nios_jtag_t *jtag =
(nios_jtag_t *)CACHE_BYPASS(CFG_NIOS_CONSOLE);
void serial_setbrg( void ){ return; }
int serial_init( void ) { return(0);}
void serial_putc (char c)
{
unsigned val;
while (NIOS_JTAG_WSPACE (jtag->control) == 0)
WATCHDOG_RESET ();
jtag->data = (unsigned char)c;
}
void serial_puts (const char *s)
{
while (*s != 0)
serial_putc (*s++);
}
int serial_tstc (void)
{
return (jtag->control & NIOS_JTAG_RRDY);
}
int serial_getc (void)
{
int c;
unsigned val;
while (1) {
WATCHDOG_RESET ();
val = jtag->data;
if (val & NIOS_JTAG_RVALID)
break;
}
c = val & 0x0ff;
return (c);
}
/*------------------------------------------------------------------
* UART the serial port
*-----------------------------------------------------------------*/
#else
static nios_uart_t *uart = (nios_uart_t *)
CACHE_BYPASS(CFG_NIOS_CONSOLE);
#if defined(CFG_NIOS_FIXEDBAUD)
/* Everything's already setup for fixed-baud PTF
* assignment
*/
void serial_setbrg (void){ return; }
int serial_init (void) { return (0);}
#else
void serial_setbrg (void)
{
DECLARE_GLOBAL_DATA_PTR;
unsigned div;
div = (CONFIG_SYS_CLK_FREQ/gd->baudrate)-1;
uart->divisor = div;
return;
}
int serial_init (void)
{
serial_setbrg ();
return (0);
}
#endif /* CFG_NIOS_FIXEDBAUD */
/*-----------------------------------------------------------------------
* UART CONSOLE
*---------------------------------------------------------------------*/
void serial_putc (char c)
{
if (c == '\n')
serial_putc ('\r');
while ((uart->status & NIOS_UART_TRDY) == 0)
WATCHDOG_RESET ();
uart->txdata = (unsigned char)c;
}
void serial_puts (const char *s)
{
while (*s != 0) {
serial_putc (*s++);
}
}
int serial_tstc (void)
{
return (uart->status & NIOS_UART_RRDY);
}
int serial_getc (void)
{
while (serial_tstc () == 0)
WATCHDOG_RESET ();
return( uart->rxdata & 0x00ff );
}
#endif /* CONFIG_JTAG_CONSOLE */

211
cpu/nios2/start.S Normal file
View file

@ -0,0 +1,211 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
/*************************************************************************
* RESTART
************************************************************************/
.text
.global _start
_start:
/* ICACHE INIT -- only the icache line at the reset address
* is invalidated at reset. So the init must stay within
* the cache line size (8 words). If GERMS is used, we'll
* just be invalidating the cache a second time. If cache
* is not implemented initi behaves as nop.
*/
movhi r4, %hi(CFG_ICACHELINE_SIZE)
ori r4, r4, %lo(CFG_ICACHELINE_SIZE)
movhi r5, %hi(CFG_ICACHE_SIZE)
ori r5, r5, %lo(CFG_ICACHE_SIZE)
mov r6, r0
0: initi r6
add r6, r6, r4
bltu r6, r5, 0b
/* INTERRUPTS -- for now, all interrupts masked and globally
* disabled.
*/
wrctl status, r0 /* Disable interrupts */
wrctl ienable, r0 /* All disabled */
/* DCACHE INIT -- if dcache not implemented, initd behaves as
* nop.
*/
movhi r4, %hi(CFG_DCACHELINE_SIZE)
ori r4, r4, %lo(CFG_DCACHELINE_SIZE)
movhi r5, %hi(CFG_DCACHE_SIZE)
ori r5, r5, %lo(CFG_DCACHE_SIZE)
mov r6, r0
1: initd 0(r6)
add r6, r6, r4
bltu r6, r5, 1b
/* RELOCATE CODE, DATA & COMMAND TABLE -- the following code
* assumes code, data and the command table are all
* contiguous. This lets us relocate everything as a single
* block. Make sure the linker script matches this ;-)
*/
nextpc r4
_cur: movhi r5, %hi(_cur - _start)
ori r5, r5, %lo(_cur - _start)
sub r4, r4, r5 /* r4 <- cur _start */
mov r8, r4
movhi r5, %hi(_start)
ori r5, r5, %lo(_start) /* r5 <- linked _start */
beq r4, r5, 3f
movhi r6, %hi(_edata)
ori r6, r6, %lo(_edata)
2: ldwio r7, 0(r4)
addi r4, r4, 4
stwio r7, 0(r5)
addi r5, r5, 4
bne r5, r6, 2b
3:
/* ZERO BSS/SBSS -- bss and sbss are assumed to be adjacent
* and between __bss_start and _end.
*/
movhi r5, %hi(__bss_start)
ori r5, r5, %lo(__bss_start)
movhi r6, %hi(_end)
ori r6, r6, %lo(_end)
beq r5, r6, 5f
4: stwio r0, 0(r5)
addi r5, r5, 4
bne r5, r6, 4b
5:
/* GLOBAL POINTER -- the global pointer is used to reference
* "small data" (see -G switch). The linker script must
* provide the gp address.
*/
movhi gp, %hi(_gp)
ori gp, gp, %lo(_gp)
/* JUMP TO RELOC ADDR */
movhi r4, %hi(_reloc)
ori r4, r4, %lo(_reloc)
jmp r4
_reloc:
/* COPY EXCEPTION TRAMPOLINE -- copy the tramp to the
* exception address.
*/
#if !defined(CONFIG_ROM_STUBS)
movhi r4, %hi(_except_start)
ori r4, r4, %lo(_except_start)
movhi r5, %hi(_except_end)
ori r5, r5, %lo(_except_end)
movhi r6, %hi(CFG_EXCEPTION_ADDR)
ori r6, r6, %lo(CFG_EXCEPTION_ADDR)
6: ldwio r7, 0(r4)
stwio r7, 0(r6)
addi r4, r4, 4
addi r6, r6, 4
bne r4, r5, 6b
#endif
/* STACK INIT -- zero top two words for call back chain.
*/
movhi sp, %hi(CFG_INIT_SP)
ori sp, sp, %lo(CFG_INIT_SP)
addi sp, sp, -8
stw r0, 0(sp)
stw r0, 4(sp)
mov fp, sp
/*
* Call board_init -- never returns
*/
movhi r4, %hi(board_init@h)
ori r4, r4, %lo(board_init@h)
callr r4
/* NEVER RETURNS -- but branch to the _start just
* in case ;-)
*/
br _start
/* EXCEPTION TRAMPOLINE -- the following gets copied
* to the exception address.
*/
_except_start:
movhi et, %hi(_exception)
ori et, et, %lo(_exception)
jmp et
_except_end:
/*
* dly_clks -- Nios2 (like Nios1) doesn't have a timebase in
* the core. For simple delay loops, we do our best by counting
* instruction cycles.
*
* Instruction performance varies based on the core. For cores
* with icache and static/dynamic branch prediction (II/f, II/s):
*
* Normal ALU (e.g. add, cmp, etc): 1 cycle
* Branch (correctly predicted, taken): 2 cycles
* Negative offset is predicted (II/s).
*
* For cores without icache and no branch prediction (II/e):
*
* Normal ALU (e.g. add, cmp, etc): 6 cycles
* Branch (no prediction): 6 cycles
*
* For simplicity, if an instruction cache is implemented we
* assume II/f or II/s. Otherwise, we use the II/e.
*
*/
.globl dly_clks
dly_clks:
#if (CFG_ICACHE_SIZE > 0)
subi r4, r4, 3 /* 3 clocks/loop */
#else
subi r4, r4, 12 /* 12 clocks/loop */
#endif
bge r4, r0, dly_clks
ret
#if !defined(CONFIG_IDENT_STRING)
#define CONFIG_IDENT_STRING ""
#endif
.data
.globl version_string
version_string:
.ascii U_BOOT_VERSION
.ascii " (", __DATE__, " - ", __TIME__, ")"
.ascii CONFIG_IDENT_STRING, "\0"

42
cpu/nios2/traps.c Normal file
View file

@ -0,0 +1,42 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <asm/ptrace.h>
#include <common.h>
void trap_handler (struct pt_regs *regs)
{
/* Just issue warning */
printf ("\n\n*** WARNING: unimplemented trap @ %08x\n\n",
regs->reg[29] - 4);
}
void soft_emulation (struct pt_regs *regs)
{
/* TODO: Software emulation of mul/div etc. Until this is
* implemented, generate warning and hang.
*/
printf ("\n\n*** ERROR: unimplemented instruction @ %08x\n",
regs->reg[29] - 4);
hang ();
}

53
doc/README.mpc85xxcds
View file

@ -6,7 +6,7 @@ The CDS family of boards consists of a PCI backplane called the
and a CPU daughter card that bolts onto the daughter card.
Much of the content of the README.mpc85xxads for the 85xx ADS boards
applies to the 85xx CDS boards as well. In particular the toolchain,
applies to the 85xx CDS boards as well. In particular the toolchain,
the switch nomenclature, and the basis for the memory map. There are
some differences, though.
@ -33,16 +33,16 @@ map.
The mapping is:
0x0000_0000 0x7fff_ffff DDR 2G
0x8000_0000 0x9fff_ffff PCI1 MEM 512M
0xa000_0000 0xbfff_ffff PCI2 MEM 512M
0xe000_0000 0xe00f_ffff CCSR 1M
0xe200_0000 0xe2ff_ffff PCI1 IO 16M
0xe300_0000 0xe3ff_ffff PCI2 IO 16M
0xf000_0000 0xf7ff_ffff SDRAM 128M
0xf800_0000 0xf80f_ffff NVRAM/CADMUS (*) 1M
0xff00_0000 0xff7f_ffff FLASH (2nd bank) 8M
0xff80_0000 0xffff_ffff FLASH (boot bank) 8M
0x0000_0000 0x7fff_ffff DDR 2G
0x8000_0000 0x9fff_ffff PCI1 MEM 512M
0xa000_0000 0xbfff_ffff PCI2 MEM 512M
0xe000_0000 0xe00f_ffff CCSR 1M
0xe200_0000 0xe2ff_ffff PCI1 IO 16M
0xe300_0000 0xe3ff_ffff PCI2 IO 16M
0xf000_0000 0xf7ff_ffff SDRAM 128M
0xf800_0000 0xf80f_ffff NVRAM/CADMUS (*) 1M
0xff00_0000 0xff7f_ffff FLASH (2nd bank) 8M
0xff80_0000 0xffff_ffff FLASH (boot bank) 8M
(*) The system control registers (CADMUS) start at offset 0xfdb0_4000
within the NVRAM/CADMUS region of memory.
@ -67,9 +67,9 @@ it into the secondary bank:
loadb
[Drop to kermit:
^\c
send <u-boot-bin-image>
c
^\c
send <u-boot-bin-image>
c
]
erase ff780000 ff7fffff
@ -102,10 +102,10 @@ The first two bits of SW2 control how flash is used on the board:
12345678
--------
SW2=00XXXXXX FLASH: Boot bank 1, bank 2 available.
01XXXXXX FLASH: Boot bank 2, bank 1 available (swapped).
10XXXXXX FLASH: Boot promjet, bank 1 available
11XXXXXX FLASH: Boot promjet, bank 2 available
SW2=00XXXXXX FLASH: Boot bank 1, bank 2 available.
01XXXXXX FLASH: Boot bank 2, bank 1 available (swapped).
10XXXXXX FLASH: Boot promjet, bank 1 available
11XXXXXX FLASH: Boot promjet, bank 2 available
The boot bank is always mapped to FF80_0000 and listed first by
the "flinfo" command. The secondary bank is always FF00_0000.
@ -116,10 +116,10 @@ convey this information:
12345678
--------
SW2=xxxxxx00 PCI SLOT INFORM: The CDS carrier is in slot0 of the Arcadia
xxxxxx01 PCI SLOT INFORM: The CDS carrier is in slot1 of the Arcadia
xxxxxx10 PCI SLOT INFORM: The CDS carrier is in slot2 of the Arcadia
xxxxxx11 PCI SLOT INFORM: The CDS carrier is in slot3 of the Arcadia
SW2=xxxxxx00 PCI SLOT INFORM: The CDS carrier is in slot0 of the Arcadia
xxxxxx01 PCI SLOT INFORM: The CDS carrier is in slot1 of the Arcadia
xxxxxx10 PCI SLOT INFORM: The CDS carrier is in slot2 of the Arcadia
xxxxxx11 PCI SLOT INFORM: The CDS carrier is in slot3 of the Arcadia
These are cleverly, er, clearly silkscreened as Slot 1 through 4,
respectively, on the Arcadia near the support posts.
@ -130,7 +130,7 @@ The default setting of all switches on the carrier board is:
12345678
--------
SW1=01101100
SW2=0x1111yy x=Flash bank, yy=PCI slot
SW2=0x1111yy x=Flash bank, yy=PCI slot
SW3=11101111
SW4=10001000
@ -178,10 +178,9 @@ Commands for downloading a u-boot image to memory from edink:
time -s 4/8/2004 4:30p
dl -k -b -o 100000
[Drop to kermit:
^\c
transmit /binary <u-boot-bin-image>
c
^\c
transmit /binary <u-boot-bin-image>
c
]
fu -l 100000 fe780000 80000

4
examples/Makefile
View file

@ -41,6 +41,10 @@ ifeq ($(ARCH),nios)
LOAD_ADDR = 0x00800000 -L $(gcclibdir)/m32 -T nios.lds
endif
ifeq ($(ARCH),nios2)
LOAD_ADDR = 0x00800000 -L $(gcclibdir) -T nios2.lds
endif
ifeq ($(ARCH),m68k)
LOAD_ADDR = 0x20000 -L $(clibdir)
endif

133
examples/nios2.lds Normal file
View file

@ -0,0 +1,133 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
OUTPUT_FORMAT("elf32-littlenios2")
OUTPUT_ARCH(nios2)
ENTRY(_start)
SECTIONS
{
.text :
{
*(.text)
*(.text.*)
*(.gnu.linkonce.t*)
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
}
. = ALIGN (4);
_etext = .;
PROVIDE (etext = .);
/* INIT DATA sections - "Small" data (see the gcc -G option)
* is always gp-relative. Here we make all init data sections
* adjacent to simplify the startup code -- and provide
* the global pointer for gp-relative access.
*/
_data = .;
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
}
. = ALIGN(16);
_gp = .; /* Global pointer addr */
PROVIDE (gp = .);
.sdata :
{
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
}
. = ALIGN(4);
_edata = .;
PROVIDE (edata = .);
/* UNINIT DATA - Small uninitialized data is first so it's
* adjacent to sdata and can be referenced via gp. The normal
* bss follows. We keep it adjacent to simplify init code.
*/
__bss_start = .;
.sbss :
{
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
}
. = ALIGN(4);
.bss :
{
*(.bss)
*(.bss.*)
*(.dynbss)
*(COMMON)
*(.scommon)
}
. = ALIGN(4);
_end = .;
PROVIDE (end = .);
/* CMD TABLE - uboot command sections
*/
__uboot_cmd_start = .;
.u_boot_cmd :
{
*(.u_boot_cmd)
}
. = ALIGN(4);
__u_boot_cmd_end = .;
/* DEBUG -- symbol table, string table, etc. etc.
*/
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
}

15
examples/stubs.c
View file

@ -82,6 +82,21 @@ gd_t *global_data;
" jmp %%g0\n" \
" nop \n" \
: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "r0");
#elif defined(CONFIG_NIOS2)
/*
* r15 holds the pointer to the global_data, r8 is call-clobbered
*/
#define EXPORT_FUNC(x) \
asm volatile ( \
" .globl " #x "\n" \
#x ":\n" \
" movhi r8, %%hi(%0)\n" \
" ori r8, r0, %%lo(%0)\n" \
" add r8, r0, r15\n" \
" ldw r8, 0(r8)\n" \
" ldw r8, %1(r8)\n" \
" jmp r8\n" \
: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r15");
#elif defined(CONFIG_M68K)
/*
* d7 holds the pointer to the global_data, a0 is a call-clobbered

37
include/asm-nios2/bitops.h Normal file
View file

@ -0,0 +1,37 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_BITOPS_H_
#define __ASM_NIOS2_BITOPS_H_
extern void set_bit(int nr, volatile void * a);
extern void clear_bit(int nr, volatile void * a);
extern int test_and_clear_bit(int nr, volatile void * a);
extern void change_bit(unsigned long nr, volatile void *addr);
extern int test_and_set_bit(int nr, volatile void * a);
extern int test_and_change_bit(int nr, volatile void * addr);
extern int test_bit(int nr, volatile void * a);
extern int ffs(int i);
#endif /* __ASM_NIOS2_BITOPS_H */

30
include/asm-nios2/byteorder.h Normal file
View file

@ -0,0 +1,30 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_BYTEORDER_H_
#define __ASM_NIOS2_BYTEORDER_H_
#include <asm/types.h>
#include <linux/byteorder/little_endian.h>
#endif /* __ASM_NIOS2_BYTEORDER_H_ */

30
include/asm-nios2/cache.h Normal file
View file

@ -0,0 +1,30 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_CACHE_H_
#define __ASM_NIOS2_CACHE_H_
extern void flush_dcache (unsigned long start, unsigned long size);
extern void flush_icache (unsigned long start, unsigned long size);
#endif /* __ASM_NIOS2_CACHE_H_ */

50
include/asm-nios2/global_data.h Normal file
View file

@ -0,0 +1,50 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_GLOBALDATA_H_
#define __ASM_NIOS2_GLOBALDATA_H_
typedef struct global_data {
bd_t *bd;
unsigned long flags;
unsigned long baudrate;
unsigned long cpu_clk; /* CPU clock in Hz! */
unsigned long have_console; /* serial_init() was called */
unsigned long ram_size; /* RAM size */
unsigned long reloc_off; /* Relocation Offset */
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid */
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
unsigned long post_log_word; /* Record POST activities */
unsigned long post_init_f_time; /* When post_init_f started */
#endif
void **jt; /* Standalone app jump table */
} gd_t;
/* flags */
#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
#define GD_FLG_SILENT 0x00004 /* Silent mode */
#define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm ("r15")
#endif /* __ASM_NIOS2_GLOBALDATA_H_ */

36
include/asm-nios2/io.h Normal file
View file

@ -0,0 +1,36 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_IO_H_
#define __ASM_NIOS2_IO_H_
#define sync() asm volatile ("sync" : : : "memory");
extern unsigned char inb (unsigned char *port);
extern unsigned short inw (unsigned short *port);
extern unsigned inl (unsigned port);
extern void outb (unsigned char val, unsigned char *port);
extern void outw (unsigned short val, unsigned short *port);
extern void outl (unsigned val, unsigned port);
#endif /* __ASM_NIOS2_IO_H_ */

131
include/asm-nios2/opcodes.h Normal file
View file

@ -0,0 +1,131 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_OPCODES_H_
#define __ASM_NIOS2_OPCODES_H_
#define OPCODE_OP(inst) ((inst) & 0x3f)
#define OPCODE_OPX(inst) (((inst)>>11) & 0x3f)
#define OPCODE_RA(inst) (((inst)>>27) & 01f)
#define OPCODE_RB(inst) (((inst)>>22) & 01f)
#define OPCODE_RC(inst) (((inst)>>17) & 01f)
/* I-TYPE (immediate) and J-TYPE (jump) opcodes
*/
#define OPCODE_CALL 0x00
#define OPCODE_LDBU 0x03
#define OPCODE_ADDI 0x04
#define OPCODE_STB 0x05
#define OPCODE_BR 0x06
#define OPCODE_LDB 0x07
#define OPCODE_CMPGEI 0x08
#define OPCODE_LDHU 0x0B
#define OPCODE_ANDI 0x0C
#define OPCODE_STH 0x0D
#define OPCODE_BGE 0x0E
#define OPCODE_LDH 0x0F
#define OPCODE_CMPLTI 0x10
#define OPCODE_XORI 0x1C
#define OPCODE_ORI 0x14
#define OPCODE_STW 0x15
#define OPCODE_BLT 0x16
#define OPCODE_LDW 0x17
#define OPCODE_CMPNEI 0x18
#define OPCODE_BNE 0x1E
#define OPCODE_CMPEQI 0x20
#define OPCODE_LDBUIO 0x23
#define OPCODE_MULI 0x24
#define OPCODE_STBIO 0x25
#define OPCODE_BEQ 0x26
#define OPCODE_LDBIO 0x27
#define OPCODE_CMPGEUI 0x28
#define OPCODE_ANDHI 0x2C
#define OPCODE_STHIO 0x2D
#define OPCODE_BGEU 0x2E
#define OPCODE_LDHIO 0x2F
#define OPCODE_CMPLTUI 0x30
#define OPCODE_CUSTOM 0x32
#define OPCODE_INITD 0x33
#define OPCODE_ORHI 0x34
#define OPCODE_STWIO 0x35
#define OPCODE_BLTU 0x36
#define OPCODE_LDWIO 0x37
#define OPCODE_RTYPE 0x3A
#define OPCODE_LDHUIO 0x2B
#define OPCODE_FLUSHD 0x3B
#define OPCODE_XORHI 0x3C
/* R-Type (register) OPX field encodings
*/
#define OPCODE_ERET 0x01
#define OPCODE_ROLI 0x02
#define OPCODE_ROL 0x03
#define OPCODE_FLUSHP 0x04
#define OPCODE_RET 0x05
#define OPCODE_NOR 0x06
#define OPCODE_MULXUU 0x07
#define OPCODE_CMPGE 0x08
#define OPCODE_BRET 0x09
#define OPCODE_ROR 0x0B
#define OPCODE_FLUSHI 0x0C
#define OPCODE_JMP 0x0D
#define OPCODE_AND 0x0E
#define OPCODE_CMPLT 0x10
#define OPCODE_SLLI 0x12
#define OPCODE_SLL 0x13
#define OPCODE_OR 0x16
#define OPCODE_MULXSU 0x17
#define OPCODE_CMPNE 0x18
#define OPCODE_SRLI 0x1A
#define OPCODE_SRL 0x1B
#define OPCODE_NEXTPC 0x1C
#define OPCODE_CALLR 0x1D
#define OPCODE_XOR 0x1E
#define OPCODE_MULXSS 0x1F
#define OPCODE_CMPEQ 0x20
#define OPCODE_CMPLTU 0x30
#define OPCODE_ADD 0x31
#define OPCODE_DIVU 0x24
#define OPCODE_DIV 0x25
#define OPCODE_RDCTL 0x26
#define OPCODE_MUL 0x27
#define OPCODE_CMPGEU 0x28
#define OPCODE_TRAP 0x2D
#define OPCODE_WRCTL 0x2E
#define OPCODE_BREAK 0x34
#define OPCODE_SYNC 0x36
#define OPCODE_INITI 0x29
#define OPCODE_SUB 0x39
#define OPCODE_SRAI 0x3A
#define OPCODE_SRA 0x3B
/*Full instruction encodings for R-Type, without the R's ;-)
*
* TODO: BREAK, BRET, ERET, RET, SYNC (as needed)
*/
#define OPC_TRAP 0x003b683a
#endif /* __ASM_NIOS2_OPCODES_H_ */

63
include/asm-nios2/posix_types.h Normal file
View file

@ -0,0 +1,63 @@
#ifndef __ASM_NIOS2_POSIX_TYPES_H_
#define __ASM_NIOS2_POSIX_TYPES_H_
/*
* This file is generally used by user-level software, so you need to
* be a little careful about namespace pollution etc. Also, we cannot
* assume GCC is being used.
*/
typedef unsigned short __kernel_dev_t;
typedef unsigned long __kernel_ino_t;
typedef unsigned short __kernel_mode_t;
typedef unsigned short __kernel_nlink_t;
typedef long __kernel_off_t;
typedef int __kernel_pid_t;
typedef unsigned short __kernel_ipc_pid_t;
typedef unsigned short __kernel_uid_t;
typedef unsigned short __kernel_gid_t;
typedef unsigned long __kernel_size_t;
typedef int __kernel_ssize_t;
typedef int __kernel_ptrdiff_t;
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;
typedef int __kernel_daddr_t;
typedef char * __kernel_caddr_t;
typedef unsigned short __kernel_uid16_t;
typedef unsigned short __kernel_gid16_t;
typedef unsigned int __kernel_uid32_t;
typedef unsigned int __kernel_gid32_t;
typedef unsigned short __kernel_old_uid_t;
typedef unsigned short __kernel_old_gid_t;
#ifdef __GNUC__
typedef long long __kernel_loff_t;
#endif
typedef struct {
#if defined(__KERNEL__) || defined(__USE_ALL)
int val[2];
#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */
int __val[2];
#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */
} __kernel_fsid_t;
#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
#undef __FD_SET
#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
#undef __FD_CLR
#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
#undef __FD_ISSET
#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
#undef __FD_ZERO
#define __FD_ZERO(fdsetp) (memset (fdsetp, 0, sizeof(*(fd_set *)fdsetp)))
#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */
#endif /* __ASM_NIOS2_POSIX_TYPES_H_ */

26
include/asm-nios2/processor.h Normal file
View file

@ -0,0 +1,26 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_PROCESSOR_H_
#define __ASM_NIOS2_PROCESSOR_H_
#endif /* __ASM_NIOS2_PROCESSOR_H_ */

28
include/asm-nios2/psr.h Normal file
View file

@ -0,0 +1,28 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_PSR_H_
#define __ASM_NIOS2_PSR_H_
#endif /* __ASM_NIOS2_PSR_H_ */

33
include/asm-nios2/ptrace.h Normal file
View file

@ -0,0 +1,33 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_PTRACE_H_
#define __ASM_NIOS2_PTRACE_H_
struct pt_regs {
unsigned reg[32];
unsigned status;
};
#endif /* __ASM_NIOS2_PTRACE_H_ */

31
include/asm-nios2/status_led.h Normal file
View file

@ -0,0 +1,31 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_STATUS_LED_H__
#define __ASM_STATUS_LED_H__
typedef unsigned led_id_t;
extern void __led_init (led_id_t mask, int state);
extern void __led_set (led_id_t mask, int state);
inline void __led_toggle (led_id_t mask);
#endif /* __ASM_STATUS_LED_H__ */

47
include/asm-nios2/string.h Normal file
View file

@ -0,0 +1,47 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_STRING_H_
#define __ASM_NIOS2_STRING_H_
#undef __HAVE_ARCH_STRRCHR
extern char * strrchr(const char * s, int c);
#undef __HAVE_ARCH_STRCHR
extern char * strchr(const char * s, int c);
#undef __HAVE_ARCH_MEMCPY
extern void * memcpy(void *, const void *, __kernel_size_t);
#undef __HAVE_ARCH_MEMMOVE
extern void * memmove(void *, const void *, __kernel_size_t);
#undef __HAVE_ARCH_MEMCHR
extern void * memchr(const void *, int, __kernel_size_t);
#undef __HAVE_ARCH_MEMSET
extern void * memset(void *, int, __kernel_size_t);
#undef __HAVE_ARCH_MEMZERO
extern void memzero(void *ptr, __kernel_size_t n);
#endif /* __ASM_NIOS2_STRING_H_ */

26
include/asm-nios2/system.h Normal file
View file

@ -0,0 +1,26 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_SYSTEM_H_
#define __ASM_NIOS2_SYSTEM_H_
#endif /* __ASM_NIOS2_SYSTEM_H */

57
include/asm-nios2/types.h Normal file
View file

@ -0,0 +1,57 @@
#ifndef __ASM_NIOS2_TYPES_H_
#define __ASM_NIOS2_TYPES_H_
/*
* This file is never included by application software unless
* explicitly requested (e.g., via linux/types.h) in which case the
* application is Linux specific so (user-) name space pollution is
* not a major issue. However, for interoperability, libraries still
* need to be careful to avoid a name clashes.
*/
typedef unsigned short umode_t;
/*
* __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
* header files exported to user space
*/
typedef __signed__ char __s8;
typedef unsigned char __u8;
typedef __signed__ short __s16;
typedef unsigned short __u16;
typedef __signed__ int __s32;
typedef unsigned int __u32;
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
typedef __signed__ long long __s64;
typedef unsigned long long __u64;
#endif
/*
* These aren't exported outside the kernel to avoid name space clashes
*/
#ifdef __KERNEL__
typedef signed char s8;
typedef unsigned char u8;
typedef signed short s16;
typedef unsigned short u16;
typedef signed int s32;
typedef unsigned int u32;
typedef signed long long s64;
typedef unsigned long long u64;
#define BITS_PER_LONG 32
/* Dma addresses are 32-bits wide. */
typedef u32 dma_addr_t;
#endif /* __KERNEL__ */
#endif /* __ASM_NIOS2_TYPES_H */

41
include/asm-nios2/u-boot.h Normal file
View file

@ -0,0 +1,41 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_NIOS2_U_BOOT_H_
#define __ASM_NIOS2_U_BOOT_H_
typedef struct bd_info {
unsigned long bi_memstart; /* start of DRAM memory */
unsigned long bi_memsize; /* size of DRAM memory in bytes */
unsigned long bi_flashstart; /* start of FLASH memory */
unsigned long bi_flashsize; /* size of FLASH memory */
unsigned long bi_flashoffset; /* reserved area for startup monitor */
unsigned long bi_sramstart; /* start of SRAM memory */
unsigned long bi_sramsize; /* size of SRAM memory */
unsigned long bi_ip_addr; /* IP Address */
unsigned char bi_enetaddr[6]; /* Ethernet adress */
unsigned long bi_baudrate; /* Console Baudrate */
} bd_t;
#endif /* __ASM_NIOS2_U_BOOT_H_ */

12
include/configs/MPC8541CDS.h
View file

@ -26,7 +26,6 @@
* Please refer to doc/README.mpc85xxcds for more info.
*
*/
#ifndef __CONFIG_H
#define __CONFIG_H
@ -72,7 +71,6 @@ extern unsigned long get_clock_freq(void);
#define CFG_MEMTEST_START 0x00200000 /* memtest works on */
#define CFG_MEMTEST_END 0x00400000
/*
* Base addresses -- Note these are effective addresses where the
* actual resources get mapped (not physical addresses)
@ -81,7 +79,6 @@ extern unsigned long get_clock_freq(void);
#define CFG_CCSRBAR 0xe0000000 /* relocated CCSRBAR */
#define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */
/*
* DDR Setup
*/
@ -97,8 +94,6 @@ extern unsigned long get_clock_freq(void);
#error ("CONFIG_SPD_EEPROM is required by MPC85555CDS")
#endif
/*
* SDRAM on the Local Bus
*/
@ -244,7 +239,6 @@ extern unsigned long get_clock_freq(void);
#define CFG_BR3_PRELIM 0xf8000801
#define CFG_OR3_PRELIM 0xfff00ff7
#define CONFIG_L1_INIT_RAM
#define CFG_INIT_RAM_LOCK 1
#define CFG_INIT_RAM_ADDR 0xe4010000 /* Initial RAM address */
@ -344,8 +338,6 @@ extern unsigned long get_clock_freq(void);
#endif /* CONFIG_TSEC_ENET */
/*
* Environment
*/
@ -369,8 +361,6 @@ extern unsigned long get_clock_freq(void);
| CFG_CMD_I2C \
| CFG_CMD_MII)
#endif
#include <cmd_confdefs.h>
#undef CONFIG_WATCHDOG /* watchdog disabled */
@ -418,7 +408,6 @@ extern unsigned long get_clock_freq(void);
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
#endif
/*
* Environment Configuration
*/
@ -470,5 +459,4 @@ extern unsigned long get_clock_freq(void);
#define CONFIG_BOOTCOMMAND CONFIG_NFSBOOTCOMMAND
#endif /* __CONFIG_H */

12
include/configs/MPC8555CDS.h
View file

@ -26,7 +26,6 @@
* Please refer to doc/README.mpc85xxcds for more info.
*
*/
#ifndef __CONFIG_H
#define __CONFIG_H
@ -72,7 +71,6 @@ extern unsigned long get_clock_freq(void);
#define CFG_MEMTEST_START 0x00200000 /* memtest works on */
#define CFG_MEMTEST_END 0x00400000
/*
* Base addresses -- Note these are effective addresses where the
* actual resources get mapped (not physical addresses)
@ -81,7 +79,6 @@ extern unsigned long get_clock_freq(void);
#define CFG_CCSRBAR 0xe0000000 /* relocated CCSRBAR */
#define CFG_IMMR CFG_CCSRBAR /* PQII uses CFG_IMMR */
/*
* DDR Setup
*/
@ -97,8 +94,6 @@ extern unsigned long get_clock_freq(void);
#error ("CONFIG_SPD_EEPROM is required by MPC85555CDS")
#endif
/*
* SDRAM on the Local Bus
*/
@ -244,7 +239,6 @@ extern unsigned long get_clock_freq(void);
#define CFG_BR3_PRELIM 0xf8000801
#define CFG_OR3_PRELIM 0xfff00ff7
#define CONFIG_L1_INIT_RAM
#define CFG_INIT_RAM_LOCK 1
#define CFG_INIT_RAM_ADDR 0xe4010000 /* Initial RAM address */
@ -344,8 +338,6 @@ extern unsigned long get_clock_freq(void);
#endif /* CONFIG_TSEC_ENET */
/*
* Environment
*/
@ -369,8 +361,6 @@ extern unsigned long get_clock_freq(void);
| CFG_CMD_I2C \
| CFG_CMD_MII)
#endif
#include <cmd_confdefs.h>
#undef CONFIG_WATCHDOG /* watchdog disabled */
@ -418,7 +408,6 @@ extern unsigned long get_clock_freq(void);
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
#endif
/*
* Environment Configuration
*/
@ -470,5 +459,4 @@ extern unsigned long get_clock_freq(void);
#define CONFIG_BOOTCOMMAND CONFIG_NFSBOOTCOMMAND
#endif /* __CONFIG_H */

155
include/configs/PCI5441.h Normal file
View file

@ -0,0 +1,155 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/*------------------------------------------------------------------------
* BOARD/CPU
*----------------------------------------------------------------------*/
#define CONFIG_PCI5441 1 /* PCI-5441 board */
#define CONFIG_SYS_CLK_FREQ 50000000 /* 50 MHz core clk */
#define CFG_RESET_ADDR 0x00000000 /* Hard-reset address */
#define CFG_EXCEPTION_ADDR 0x01000020 /* Exception entry point*/
#define CFG_NIOS_SYSID_BASE 0x00920828 /* System id address */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* enable early board-spec. init*/
/*------------------------------------------------------------------------
* CACHE -- the following will support II/s and II/f. The II/s does not
* have dcache, so the cache instructions will behave as NOPs.
*----------------------------------------------------------------------*/
#define CFG_ICACHE_SIZE 4096 /* 4 KByte total */
#define CFG_ICACHELINE_SIZE 32 /* 32 bytes/line */
#define CFG_DCACHE_SIZE 2048 /* 2 KByte (II/f) */
#define CFG_DCACHELINE_SIZE 4 /* 4 bytes/line (II/f) */
/*------------------------------------------------------------------------
* MEMORY BASE ADDRESSES
*----------------------------------------------------------------------*/
#define CFG_FLASH_BASE 0x00000000 /* FLASH base addr */
#define CFG_FLASH_SIZE 0x00800000 /* 8 MByte */
#define CFG_SDRAM_BASE 0x01000000 /* SDRAM base addr */
#define CFG_SDRAM_SIZE 0x01000000 /* 16 MByte */
/*------------------------------------------------------------------------
* MEMORY ORGANIZATION
* -Monitor at top.
* -The heap is placed below the monitor.
* -Global data is placed below the heap.
* -The stack is placed below global data (&grows down).
*----------------------------------------------------------------------*/
#define CFG_MONITOR_LEN (128 * 1024) /* Reserve 128k */
#define CFG_GBL_DATA_SIZE 128 /* Global data size rsvd*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
#define CFG_MONITOR_BASE TEXT_BASE
#define CFG_MALLOC_BASE (CFG_MONITOR_BASE - CFG_MALLOC_LEN)
#define CFG_GBL_DATA_OFFSET (CFG_MALLOC_BASE - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP CFG_GBL_DATA_OFFSET
/*------------------------------------------------------------------------
* FLASH (AM29LV065D)
*----------------------------------------------------------------------*/
#define CFG_MAX_FLASH_SECT 128 /* Max # sects per bank */
#define CFG_MAX_FLASH_BANKS 1 /* Max # of flash banks */
#define CFG_FLASH_ERASE_TOUT 8000 /* Erase timeout (msec) */
#define CFG_FLASH_WRITE_TOUT 100 /* Write timeout (msec) */
#define CFG_FLASH_WORD_SIZE unsigned char /* flash word size */
/*------------------------------------------------------------------------
* ENVIRONMENT -- Put environment in sector CFG_MONITOR_LEN above
* CFG_RESET_ADDR, since we assume the monitor is stored at the
* reset address, no? This will keep the environment in user region
* of flash. NOTE: the monitor length must be multiple of sector size
* (which is common practice).
*----------------------------------------------------------------------*/
#define CFG_ENV_IS_IN_FLASH 1 /* Environment in flash */
#define CFG_ENV_SIZE (64 * 1024) /* 64 KByte (1 sector) */
#define CONFIG_ENV_OVERWRITE /* Serial change Ok */
#define CFG_ENV_ADDR (CFG_RESET_ADDR + CFG_MONITOR_LEN)
/*------------------------------------------------------------------------
* CONSOLE
*----------------------------------------------------------------------*/
#if defined(CONFIG_CONSOLE_JTAG)
#define CFG_NIOS_CONSOLE 0x00920820 /* JTAG UART base addr */
#else
#define CFG_NIOS_CONSOLE 0x009208a0 /* UART base addr */
#endif
#define CFG_NIOS_FIXEDBAUD 1 /* Baudrate is fixed */
#define CONFIG_BAUDRATE 115200 /* Initial baudrate */
#define CFG_BAUDRATE_TABLE {115200} /* It's fixed ;-) */
#define CFG_CONSOLE_INFO_QUIET 1 /* Suppress console info*/
/*------------------------------------------------------------------------
* DEBUG
*----------------------------------------------------------------------*/
#undef CONFIG_ROM_STUBS /* Stubs not in ROM */
/*------------------------------------------------------------------------
* TIMEBASE --
*
* The high res timer defaults to 1 msec. Since it includes the period
* registers, we can slow it down to 10 msec using TMRCNT. If the default
* period is acceptable, TMRCNT can be left undefined.
*----------------------------------------------------------------------*/
#define CFG_NIOS_TMRBASE 0x00920860 /* Tick timer base addr */
#define CFG_NIOS_TMRIRQ 3 /* Timer IRQ num */
#define CFG_NIOS_TMRMS 10 /* 10 msec per tick */
#define CFG_NIOS_TMRCNT (CFG_NIOS_TMRMS * (CONFIG_SYS_CLK_FREQ/1000))
#define CFG_HZ (CONFIG_SYS_CLK_FREQ/(CFG_NIOS_TMRCNT + 1))
/*------------------------------------------------------------------------
* COMMANDS
*----------------------------------------------------------------------*/
#define CONFIG_COMMANDS (CFG_CMD_BDI | \
CFG_CMD_ECHO | \
CFG_CMD_ENV | \
CFG_CMD_FLASH | \
CFG_CMD_IMI | \
CFG_CMD_IRQ | \
CFG_CMD_LOADS | \
CFG_CMD_LOADB | \
CFG_CMD_MEMORY | \
CFG_CMD_MISC | \
CFG_CMD_RUN | \
CFG_CMD_SAVES )
#include <cmd_confdefs.h>
/*------------------------------------------------------------------------
* MISC
*----------------------------------------------------------------------*/
#define CFG_LONGHELP /* Provide extended help*/
#define CFG_PROMPT "==> " /* Command prompt */
#define CFG_CBSIZE 256 /* Console I/O buf size */
#define CFG_MAXARGS 16 /* Max command args */
#define CFG_BARGSIZE CFG_CBSIZE /* Boot arg buf size */
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print buf size */
#define CFG_LOAD_ADDR CFG_SDRAM_BASE /* Default load address */
#define CFG_MEMTEST_START CFG_SDRAM_BASE /* Start addr for test */
#define CFG_MEMTEST_END CFG_INIT_SP - 0x00020000
#endif /* __CONFIG_H */

188
include/configs/PK1C20.h Normal file
View file

@ -0,0 +1,188 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/*------------------------------------------------------------------------
* BOARD/CPU
*----------------------------------------------------------------------*/
#define CONFIG_PK1C20 1 /* PK1C20 board */
#define CONFIG_SYS_CLK_FREQ 50000000 /* 50 MHz core clk */
#define CFG_RESET_ADDR 0x00000000 /* Hard-reset address */
#define CFG_EXCEPTION_ADDR 0x01000020 /* Exception entry point*/
#define CFG_NIOS_SYSID_BASE 0x00920828 /* System id address */
#define CONFIG_BOARD_EARLY_INIT_F 1 /* enable early board-spec. init*/
/*------------------------------------------------------------------------
* CACHE -- the following will support II/s and II/f. The II/s does not
* have dcache, so the cache instructions will behave as NOPs.
*----------------------------------------------------------------------*/
#define CFG_ICACHE_SIZE 4096 /* 4 KByte total */
#define CFG_ICACHELINE_SIZE 32 /* 32 bytes/line */
#define CFG_DCACHE_SIZE 2048 /* 2 KByte (II/f) */
#define CFG_DCACHELINE_SIZE 4 /* 4 bytes/line (II/f) */
/*------------------------------------------------------------------------
* MEMORY BASE ADDRESSES
*----------------------------------------------------------------------*/
#define CFG_FLASH_BASE 0x00000000 /* FLASH base addr */
#define CFG_FLASH_SIZE 0x00800000 /* 8 MByte */
#define CFG_SDRAM_BASE 0x01000000 /* SDRAM base addr */
#define CFG_SDRAM_SIZE 0x01000000 /* 16 MByte */
#define CFG_SRAM_BASE 0x00800000 /* SRAM base addr */
#define CFG_SRAM_SIZE 0x00200000 /* 2 MByte */
/*------------------------------------------------------------------------
* MEMORY ORGANIZATION
* -Monitor at top.
* -The heap is placed below the monitor.
* -Global data is placed below the heap.
* -The stack is placed below global data (&grows down).
*----------------------------------------------------------------------*/
#define CFG_MONITOR_LEN (128 * 1024) /* Reserve 128k */
#define CFG_GBL_DATA_SIZE 128 /* Global data size rsvd*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
#define CFG_MONITOR_BASE TEXT_BASE
#define CFG_MALLOC_BASE (CFG_MONITOR_BASE - CFG_MALLOC_LEN)
#define CFG_GBL_DATA_OFFSET (CFG_MALLOC_BASE - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP CFG_GBL_DATA_OFFSET
/*------------------------------------------------------------------------
* FLASH (AM29LV065D)
*----------------------------------------------------------------------*/
#define CFG_MAX_FLASH_SECT 128 /* Max # sects per bank */
#define CFG_MAX_FLASH_BANKS 1 /* Max # of flash banks */
#define CFG_FLASH_ERASE_TOUT 8000 /* Erase timeout (msec) */
#define CFG_FLASH_WRITE_TOUT 100 /* Write timeout (msec) */
#define CFG_FLASH_WORD_SIZE unsigned char /* flash word size */
/*------------------------------------------------------------------------
* ENVIRONMENT -- Put environment in sector CFG_MONITOR_LEN above
* CFG_RESET_ADDR, since we assume the monitor is stored at the
* reset address, no? This will keep the environment in user region
* of flash. NOTE: the monitor length must be multiple of sector size
* (which is common practice).
*----------------------------------------------------------------------*/
#define CFG_ENV_IS_IN_FLASH 1 /* Environment in flash */
#define CFG_ENV_SIZE (64 * 1024) /* 64 KByte (1 sector) */
#define CONFIG_ENV_OVERWRITE /* Serial change Ok */
#define CFG_ENV_ADDR (CFG_RESET_ADDR + CFG_MONITOR_LEN)
/*------------------------------------------------------------------------
* CONSOLE
*----------------------------------------------------------------------*/
#if defined(CONFIG_CONSOLE_JTAG)
#define CFG_NIOS_CONSOLE 0x00920820 /* JTAG UART base addr */
#else
#define CFG_NIOS_CONSOLE 0x009208a0 /* UART base addr */
#endif
#define CFG_NIOS_FIXEDBAUD 1 /* Baudrate is fixed */
#define CONFIG_BAUDRATE 115200 /* Initial baudrate */
#define CFG_BAUDRATE_TABLE {115200} /* It's fixed ;-) */
#define CFG_CONSOLE_INFO_QUIET 1 /* Suppress console info*/
/*------------------------------------------------------------------------
* DEBUG
*----------------------------------------------------------------------*/
#undef CONFIG_ROM_STUBS /* Stubs not in ROM */
/*------------------------------------------------------------------------
* TIMEBASE --
*
* The high res timer defaults to 1 msec. Since it includes the period
* registers, we can slow it down to 10 msec using TMRCNT. If the default
* period is acceptable, TMRCNT can be left undefined.
*----------------------------------------------------------------------*/
#define CFG_NIOS_TMRBASE 0x00920860 /* Tick timer base addr */
#define CFG_NIOS_TMRIRQ 3 /* Timer IRQ num */
#define CFG_NIOS_TMRMS 10 /* 10 msec per tick */
#define CFG_NIOS_TMRCNT (CFG_NIOS_TMRMS * (CONFIG_SYS_CLK_FREQ/1000))
#define CFG_HZ (CONFIG_SYS_CLK_FREQ/(CFG_NIOS_TMRCNT + 1))
/*------------------------------------------------------------------------
* STATUS LED -- Provides a simple blinking led. For Nios2 each board
* must implement its own led routines -- leds are, after all,
* board-specific, no?
*----------------------------------------------------------------------*/
#define CFG_LEDPIO_ADDR 0x00920840 /* LED PIO base addr */
#define CONFIG_STATUS_LED /* Enable status driver */
#define STATUS_LED_BIT 1 /* Bit-0 on PIO */
#define STATUS_LED_STATE 1 /* Blinking */
#define STATUS_LED_PERIOD (500/CFG_NIOS_TMRMS) /* Every 500 msec */
/*------------------------------------------------------------------------
* ETHERNET -- The header file for the SMC91111 driver hurts my eyes ...
* and really doesn't need any additional clutter. So I choose the lazy
* way out to avoid changes there -- define the base address to ensure
* cache bypass so there's no need to monkey with inx/outx macros.
*----------------------------------------------------------------------*/
#define CONFIG_SMC91111_BASE 0x80910300 /* Base addr (bypass) */
#define CONFIG_DRIVER_SMC91111 /* Using SMC91c111 */
#undef CONFIG_SMC91111_EXT_PHY /* Internal PHY */
#define CONFIG_SMC_USE_32_BIT /* 32-bit interface */
#define CONFIG_ETHADDR 08:00:3e:26:0a:5b
#define CONFIG_NETMASK 255.255.255.0
#define CONFIG_IPADDR 192.168.2.21
#define CONFIG_SERVERIP 192.168.2.16
/*------------------------------------------------------------------------
* COMMANDS
*----------------------------------------------------------------------*/
#define CONFIG_COMMANDS (CFG_CMD_BDI | \
CFG_CMD_DHCP | \
CFG_CMD_ECHO | \
CFG_CMD_ENV | \
CFG_CMD_FLASH | \
CFG_CMD_IMI | \
CFG_CMD_IRQ | \
CFG_CMD_LOADS | \
CFG_CMD_LOADB | \
CFG_CMD_MEMORY | \
CFG_CMD_MISC | \
CFG_CMD_NET | \
CFG_CMD_PING | \
CFG_CMD_RUN | \
CFG_CMD_SAVES )
#include <cmd_confdefs.h>
/*------------------------------------------------------------------------
* MISC
*----------------------------------------------------------------------*/
#define CFG_LONGHELP /* Provide extended help*/
#define CFG_PROMPT "==> " /* Command prompt */
#define CFG_CBSIZE 256 /* Console I/O buf size */
#define CFG_MAXARGS 16 /* Max command args */
#define CFG_BARGSIZE CFG_CBSIZE /* Boot arg buf size */
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print buf size */
#define CFG_LOAD_ADDR CFG_SDRAM_BASE /* Default load address */
#define CFG_MEMTEST_START CFG_SDRAM_BASE /* Start addr for test */
#define CFG_MEMTEST_END CFG_INIT_SP - 0x00020000
#endif /* __CONFIG_H */

1
include/image.h
View file

@ -67,6 +67,7 @@
#define IH_CPU_M68K 12 /* M68K */
#define IH_CPU_NIOS 13 /* Nios-32 */
#define IH_CPU_MICROBLAZE 14 /* MicroBlaze */
#define IH_CPU_NIOS2 15 /* Nios-II */
/*
* Image Types

200
include/nios2-io.h Normal file
View file

@ -0,0 +1,200 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*************************************************************************
* Altera Nios2 Standard Peripherals
************************************************************************/
#ifndef __NIOS2IO_H__
#define __NIOS2IO_H__
/*------------------------------------------------------------------------
* UART (http://www.altera.com/literature/ds/ds_nios_uart.pdf)
*----------------------------------------------------------------------*/
typedef volatile struct nios_uart_t {
unsigned rxdata; /* Rx data reg */
unsigned txdata; /* Tx data reg */
unsigned status; /* Status reg */
unsigned control; /* Control reg */
unsigned divisor; /* Baud rate divisor reg */
unsigned endofpacket; /* End-of-packet reg */
}nios_uart_t;
/* status register */
#define NIOS_UART_PE (1 << 0) /* parity error */
#define NIOS_UART_FE (1 << 1) /* frame error */
#define NIOS_UART_BRK (1 << 2) /* break detect */
#define NIOS_UART_ROE (1 << 3) /* rx overrun */
#define NIOS_UART_TOE (1 << 4) /* tx overrun */
#define NIOS_UART_TMT (1 << 5) /* tx empty */
#define NIOS_UART_TRDY (1 << 6) /* tx ready */
#define NIOS_UART_RRDY (1 << 7) /* rx ready */
#define NIOS_UART_E (1 << 8) /* exception */
#define NIOS_UART_DCTS (1 << 10) /* cts change */
#define NIOS_UART_CTS (1 << 11) /* cts */
#define NIOS_UART_EOP (1 << 12) /* eop detected */
/* control register */
#define NIOS_UART_IPE (1 << 0) /* parity error int ena*/
#define NIOS_UART_IFE (1 << 1) /* frame error int ena */
#define NIOS_UART_IBRK (1 << 2) /* break detect int ena */
#define NIOS_UART_IROE (1 << 3) /* rx overrun int ena */
#define NIOS_UART_ITOE (1 << 4) /* tx overrun int ena */
#define NIOS_UART_ITMT (1 << 5) /* tx empty int ena */
#define NIOS_UART_ITRDY (1 << 6) /* tx ready int ena */
#define NIOS_UART_IRRDY (1 << 7) /* rx ready int ena */
#define NIOS_UART_IE (1 << 8) /* exception int ena */
#define NIOS_UART_TBRK (1 << 9) /* transmit break */
#define NIOS_UART_IDCTS (1 << 10) /* cts change int ena */
#define NIOS_UART_RTS (1 << 11) /* rts */
#define NIOS_UART_IEOP (1 << 12) /* eop detected int ena */
/*------------------------------------------------------------------------
* TIMER (http://www.altera.com/literature/ds/ds_nios_timer.pdf)
*----------------------------------------------------------------------*/
typedef volatile struct nios_timer_t {
unsigned status; /* Timer status reg */
unsigned control; /* Timer control reg */
unsigned periodl; /* Timeout period low */
unsigned periodh; /* Timeout period high */
unsigned snapl; /* Snapshot low */
unsigned snaph; /* Snapshot high */
}nios_timer_t;
/* status register */
#define NIOS_TIMER_TO (1 << 0) /* Timeout */
#define NIOS_TIMER_RUN (1 << 1) /* Timer running */
/* control register */
#define NIOS_TIMER_ITO (1 << 0) /* Timeout int ena */
#define NIOS_TIMER_CONT (1 << 1) /* Continuous mode */
#define NIOS_TIMER_START (1 << 2) /* Start timer */
#define NIOS_TIMER_STOP (1 << 3) /* Stop timer */
/*------------------------------------------------------------------------
* PIO (http://www.altera.com/literature/ds/ds_nios_pio.pdf)
*----------------------------------------------------------------------*/
typedef volatile struct nios_pio_t {
unsigned int data; /* Data value at each PIO in/out */
unsigned int direction; /* Data direct. for each PIO bit */
unsigned int interruptmask; /* Per-bit IRQ enable/disable */
unsigned int edgecapture; /* Per-bit sync. edge detect & hold */
}nios_pio_t;
/* direction register */
#define NIOS_PIO_OUT (1) /* PIO bit is output */
#define NIOS_PIO_IN (0) /* PIO bit is input */
/*------------------------------------------------------------------------
* SPI (http://www.altera.com/literature/ds/ds_nios_spi.pdf)
*----------------------------------------------------------------------*/
typedef volatile struct nios_spi_t {
unsigned rxdata; /* Rx data reg */
unsigned txdata; /* Tx data reg */
unsigned status; /* Status reg */
unsigned control; /* Control reg */
unsigned reserved; /* (master only) */
unsigned slaveselect; /* SPI slave select mask (master only) */
}nios_spi_t;
/* status register */
#define NIOS_SPI_ROE (1 << 3) /* rx overrun */
#define NIOS_SPI_TOE (1 << 4) /* tx overrun */
#define NIOS_SPI_TMT (1 << 5) /* tx empty */
#define NIOS_SPI_TRDY (1 << 6) /* tx ready */
#define NIOS_SPI_RRDY (1 << 7) /* rx ready */
#define NIOS_SPI_E (1 << 8) /* exception */
/* control register */
#define NIOS_SPI_IROE (1 << 3) /* rx overrun int ena */
#define NIOS_SPI_ITOE (1 << 4) /* tx overrun int ena */
#define NIOS_SPI_ITRDY (1 << 6) /* tx ready int ena */
#define NIOS_SPI_IRRDY (1 << 7) /* rx ready int ena */
#define NIOS_SPI_IE (1 << 8) /* exception int ena */
#define NIOS_SPI_SSO (1 << 10) /* override SS_n output */
/*------------------------------------------------------------------------
* ASMI
*----------------------------------------------------------------------*/
typedef volatile struct nios_asmi_t {
unsigned rxdata; /* Rx data reg */
unsigned txdata; /* Tx data reg */
unsigned status; /* Status reg */
unsigned control; /* Control reg */
unsigned reserved;
unsigned slavesel; /* Slave select */
unsigned endofpacket; /* End-of-packet reg */
}nios_asmi_t;
/* status register */
#define NIOS_ASMI_ROE (1 << 3) /* rx overrun */
#define NIOS_ASMI_TOE (1 << 4) /* tx overrun */
#define NIOS_ASMI_TMT (1 << 5) /* tx empty */
#define NIOS_ASMI_TRDY (1 << 6) /* tx ready */
#define NIOS_ASMI_RRDY (1 << 7) /* rx ready */
#define NIOS_ASMI_E (1 << 8) /* exception */
#define NIOS_ASMI_EOP (1 << 9) /* eop detected */
/* control register */
#define NIOS_ASMI_IROE (1 << 3) /* rx overrun int ena */
#define NIOS_ASMI_ITOE (1 << 4) /* tx overrun int ena */
#define NIOS_ASMI_ITRDY (1 << 6) /* tx ready int ena */
#define NIOS_ASMI_IRRDY (1 << 7) /* rx ready int ena */
#define NIOS_ASMI_IE (1 << 8) /* exception int ena */
#define NIOS_ASMI_IEOP (1 << 9) /* rx eop int ena */
#define NIOS_ASMI_SSO (1 << 10) /* slave select enable */
/*------------------------------------------------------------------------
* JTAG UART
*----------------------------------------------------------------------*/
typedef volatile struct nios_jtag_t {
unsigned data; /* Data register */
unsigned control; /* Control register */
}nios_jtag_t;
/* data register */
#define NIOS_JTAG_RVALID (1<<15) /* Read valid */
#define NIOS_JTAG_DATA(d) ((d)&0x0ff) /* Read data */
#define NIOS_JTAG_RAVAIL(d) ((d)>>16) /* Read space avail */
/* control register */
#define NIOS_JTAG_RE (1 << 0) /* read intr enable */
#define NIOS_JTAG_WE (1 << 1) /* write intr enable */
#define NIOS_JTAG_RI (1 << 8) /* read intr pending */
#define NIOS_JTAG_WI (1 << 9) /* write intr pending*/
#define NIOS_JTAG_AC (1 << 10) /* activity indicator */
#define NIOS_JTAG_RRDY (1 << 12) /* read available */
#define NIOS_JTAG_WSPACE(d) ((d)>>16) /* Write space avail */
/*------------------------------------------------------------------------
* SYSTEM ID
*----------------------------------------------------------------------*/
typedef volatile struct nios_sysid_t {
unsigned id; /* The system build id*/
unsigned timestamp; /* Timestamp */
}nios_sysid_t;
#endif /* __NIOS2IO_H__ */

63
include/nios2.h Normal file
View file

@ -0,0 +1,63 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __NIOS2_H__
#define __NIOS2_H__
/*------------------------------------------------------------------------
* Control registers -- use with wrctl() & rdctl()
*----------------------------------------------------------------------*/
#define CTL_STATUS 0 /* Processor status reg */
#define CTL_ESTATUS 1 /* Exception status reg */
#define CTL_BSTATUS 2 /* Break status reg */
#define CTL_IENABLE 3 /* Interrut enable reg */
#define CTL_IPENDING 4 /* Interrut pending reg */
/*------------------------------------------------------------------------
* Access to control regs
*----------------------------------------------------------------------*/
#define _str_(x) #x
#define rdctl(reg)\
({unsigned int val;\
asm volatile( "rdctl %0, ctl" _str_(reg)\
: "=r" (val) ); val;})
#define wrctl(reg,val)\
asm volatile( "wrctl ctl" _str_(reg) ",%0"\
: : "r" (val))
/*------------------------------------------------------------------------
* Control reg bit masks
*----------------------------------------------------------------------*/
#define STATUS_IE (1<<0) /* Interrupt enable */
#define STATUS_U (1<<1) /* User-mode */
/*------------------------------------------------------------------------
* Bit-31 Cache bypass -- only valid for data access. When data cache
* is not implemented, bit 31 is ignored for compatibility.
*----------------------------------------------------------------------*/
#define CACHE_BYPASS(a) ((a) | 0x80000000)
#define CACHE_NO_BYPASS(a) ((a) & ~0x80000000)
#endif /* __NIOS2_H__ */

3
include/status_led.h
View file

@ -340,6 +340,9 @@ void status_led_set (int led, int state);
#elif defined(CONFIG_WRSBC8240)
/* XXX empty just to avoid the error */
/************************************************************************/
#elif defined(CONFIG_NIOS2)
/* XXX empty just to avoid the error */
/************************************************************************/
#else
# error Status LED configuration missing
#endif

44
lib_nios2/Makefile Normal file
View file

@ -0,0 +1,44 @@
#
# (C) Copyright 2000
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB = lib$(ARCH).a
AOBJS = cache.o
COBJS = board.o divmod.o nios_linux.o mult.o time.o
OBJS = $(AOBJS) $(COBJS)
$(LIB): .depend $(OBJS)
$(AR) crv $@ $(OBJS)
#########################################################################
.depend: Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c)
$(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@
sinclude .depend
#########################################################################

184
lib_nios2/board.c Normal file
View file

@ -0,0 +1,184 @@
/*
* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <devices.h>
#include <watchdog.h>
#include <net.h>
#ifdef CONFIG_STATUS_LED
#include <status_led.h>
#endif
/*
* All attempts to come up with a "common" initialization sequence
* that works for all boards and architectures failed: some of the
* requirements are just _too_ different. To get rid of the resulting
* mess of board dependend #ifdef'ed code we now make the whole
* initialization sequence configurable to the user.
*
* The requirements for any new initalization function is simple: it
* receives a pointer to the "global data" structure as it's only
* argument, and returns an integer return code, where 0 means
* "continue" and != 0 means "fatal error, hang the system".
*/
extern void malloc_bin_reloc (void);
typedef int (init_fnc_t) (void);
/*
* Begin and End of memory area for malloc(), and current "brk"
*/
static ulong mem_malloc_start = 0;
static ulong mem_malloc_end = 0;
static ulong mem_malloc_brk = 0;
/*
* The Malloc area is immediately below the monitor copy in RAM
*/
static void mem_malloc_init (void)
{
mem_malloc_start = CFG_MALLOC_BASE;
mem_malloc_end = mem_malloc_start + CFG_MALLOC_LEN;
mem_malloc_brk = mem_malloc_start;
memset ((void *) mem_malloc_start,
0,
mem_malloc_end - mem_malloc_start);
}
void *sbrk (ptrdiff_t increment)
{
ulong old = mem_malloc_brk;
ulong new = old + increment;
if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
return (NULL);
}
mem_malloc_brk = new;
return ((void *) old);
}
/************************************************************************
* Initialization sequence *
***********************************************************************/
init_fnc_t *init_sequence[] = {
#if defined(CONFIG_BOARD_EARLY_INIT_F)
board_early_init_f, /* Call board-specific init code early.*/
#endif
env_init,
serial_init,
console_init_f,
display_options,
checkcpu,
checkboard,
NULL, /* Terminate this list */
};
/***********************************************************************/
void board_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
bd_t *bd;
init_fnc_t **init_fnc_ptr;
char *s, *e;
int i;
/* Pointer is writable since we allocated a register for it.
* Nios treats CFG_GBL_DATA_OFFSET as an address.
*/
gd = (gd_t *)CFG_GBL_DATA_OFFSET;
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
memset( gd, 0, CFG_GBL_DATA_SIZE );
gd->bd = (bd_t *)(gd+1); /* At end of global data */
gd->baudrate = CONFIG_BAUDRATE;
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
bd = gd->bd;
bd->bi_memstart = CFG_SDRAM_BASE;
bd->bi_memsize = CFG_SDRAM_SIZE;
bd->bi_flashstart = CFG_FLASH_BASE;
#if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE)
bd->bi_sramstart= CFG_SRAM_BASE;
bd->bi_sramsize = CFG_SRAM_SIZE;
#endif
bd->bi_baudrate = CONFIG_BAUDRATE;
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
WATCHDOG_RESET ();
if ((*init_fnc_ptr) () != 0) {
hang ();
}
}
WATCHDOG_RESET ();
bd->bi_flashsize = flash_init();
WATCHDOG_RESET ();
mem_malloc_init();
malloc_bin_reloc();
env_relocate();
bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
s = getenv ("ethaddr");
for (i = 0; i < 6; ++i) {
bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
if (s) s = (*e) ? e + 1 : e;
}
WATCHDOG_RESET ();
devices_init();
jumptable_init();
console_init_r();
WATCHDOG_RESET ();
interrupt_init ();
/* main_loop */
for (;;) {
WATCHDOG_RESET ();
main_loop ();
}
}
/***********************************************************************/
void hang (void)
{
disable_interrupts ();
puts("### ERROR ### Please reset board ###\n");
for (;;);
}

74
lib_nios2/cache.S Normal file
View file

@ -0,0 +1,74 @@
/*
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
.text
.global flush_dcache
flush_dcache:
add r5, r5, r4
movhi r8, %hi(CFG_DCACHELINE_SIZE)
ori r8, r8, %lo(CFG_DCACHELINE_SIZE)
0: flushd 0(r4)
add r4, r4, r8
bltu r4, r5, 0b
ret
.global flush_icache
flush_icache:
add r5, r5, r4
movhi r8, %hi(CFG_ICACHELINE_SIZE)
ori r8, r8, %lo(CFG_ICACHELINE_SIZE)
1: flushi r4
add r4, r4, r8
bltu r4, r5, 1b
ret
.global flush_cache
flush_cache:
add r5, r5, r4
mov r9, r4
mov r10, r5
movhi r8, %hi(CFG_DCACHELINE_SIZE)
ori r8, r8, %lo(CFG_DCACHELINE_SIZE)
0: flushd 0(r4)
add r4, r4, r8
bltu r4, r5, 0b
mov r4, r9
mov r5, r10
movhi r8, %hi(CFG_ICACHELINE_SIZE)
ori r8, r8, %lo(CFG_ICACHELINE_SIZE)
1: flushi r4
add r4, r4, r8
bltu r4, r5, 1b
sync
flushp
ret

101
lib_nios2/divmod.c Normal file
View file

@ -0,0 +1,101 @@
/*
* This file is part of GNU CC.
*
* GNU CC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2, or (at your
* option) any later version.
*
* GNU CC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with GNU CC; see the file COPYING. If not, write
* to the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "math.h"
USItype udivmodsi4 (USItype num, USItype den, word_type modwanted)
{
USItype bit = 1;
USItype res = 0;
while (den < num && bit && !(den & (1L << 31))) {
den <<= 1;
bit <<= 1;
}
while (bit) {
if (num >= den) {
num -= den;
res |= bit;
}
bit >>= 1;
den >>= 1;
}
if (modwanted)
return num;
return res;
}
SItype __divsi3 (SItype a, SItype b)
{
word_type neg = 0;
SItype res;
if (a < 0) {
a = -a;
neg = !neg;
}
if (b < 0) {
b = -b;
neg = !neg;
}
res = udivmodsi4 (a, b, 0);
if (neg)
res = -res;
return res;
}
SItype __modsi3 (SItype a, SItype b)
{
word_type neg = 0;
SItype res;
if (a < 0) {
a = -a;
neg = 1;
}
if (b < 0)
b = -b;
res = udivmodsi4 (a, b, 1);
if (neg)
res = -res;
return res;
}
SItype __udivsi3 (SItype a, SItype b)
{
return udivmodsi4 (a, b, 0);
}
SItype __umodsi3 (SItype a, SItype b)
{
return udivmodsi4 (a, b, 1);
}

16
lib_nios2/math.h Normal file
View file

@ -0,0 +1,16 @@
#define BITS_PER_UNIT 8
typedef int HItype __attribute__ ((mode (HI)));
typedef unsigned int UHItype __attribute__ ((mode (HI)));
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int word_type __attribute__ ((mode (__word__)));
struct SIstruct {HItype low, high;};
typedef union {
struct SIstruct s;
SItype ll;
} SIunion;

56
lib_nios2/mult.c Normal file
View file

@ -0,0 +1,56 @@
/*
* This file is part of GNU CC.
*
* GNU CC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2, or (at your
* option) any later version.
*
* GNU CC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with GNU CC; see the file COPYING. If not, write
* to the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <common.h>
#if !defined(CFG_NIOS_MULT_HW) && !defined(CFG_NIOS_MULT_MSTEP)
#include "math.h"
USItype __mulsi3 (USItype a, USItype b)
{
USItype c = 0;
while (a != 0) {
if (a & 1)
c += b;
a >>= 1;
b <<= 1;
}
return c;
}
UHItype __mulhi3 (UHItype a, UHItype b)
{
UHItype c = 0;
while (a != 0) {
if (a & 1)
c += b;
a >>= 1;
b <<= 1;
}
return c;
}
#endif /*!defined(CFG_NIOS_MULT_HW) && !defined(CFG_NIOS_MULT_MSTEP) */

32
lib_nios2/nios_linux.c Normal file
View file

@ -0,0 +1,32 @@
/*
* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
/* TODO
*/
void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
ulong addr, ulong *len_ptr, int verify)
{
}

39
lib_nios2/time.c Normal file
View file

@ -0,0 +1,39 @@
/*
* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
* Scott McNutt <smcnutt@psyent.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <watchdog.h>
extern void dly_clks( unsigned long ticks );
void udelay(unsigned long usec)
{
/* The Nios core doesn't have a timebase, so we do our
* best for now and call a low-level loop that counts
* cpu clocks.
*/
unsigned long cnt = (CONFIG_SYS_CLK_FREQ/1000000) * usec;
WATCHDOG_RESET (); /* trigger watchdog if needed */
dly_clks (cnt);
}

26
nios2_config.mk Normal file
View file

@ -0,0 +1,26 @@
#
# (C) Copyright 2004
# Psyent Corporation <www.psyent.com>
# Scott McNutt <smcnutt@psyent.com>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
PLATFORM_CPPFLAGS += -DCONFIG_NIOS2 -D__NIOS2__
PLATFORM_CPPFLAGS += -ffixed-r15