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sf: Remove eeprom_m95xxx test driver

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The relevent boards which used this driver got zapped
in previous release and the driver is never used in the
code and also it doesn't use/do any spi-flash operations.

Commit details for relevent removed boards:
"ARM: at91: remove non-generic boards"
(sha1: f6b42c1403)

Cc: Tom Rini <trini@konsulko.com>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
This commit is contained in:
Jagan Teki 2015-11-04 13:01:59 +05:30
parent 2d13459721
commit 7693fb3756
2 changed files with 0 additions and 112 deletions
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1
drivers/mtd/spi/Makefile
View file

@ -20,4 +20,3 @@ obj-$(CONFIG_SPI_FLASH) += sf_ops.o sf_params.o
obj-$(CONFIG_SPI_FLASH_DATAFLASH) += sf_dataflash.o
obj-$(CONFIG_SPI_FLASH_MTD) += sf_mtd.o
obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o
obj-$(CONFIG_SPI_M95XXX) += eeprom_m95xxx.o

111
drivers/mtd/spi/eeprom_m95xxx.c
View file

@ -1,111 +0,0 @@
/*
* Copyright (C) 2009
* Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <spi.h>
#define SPI_EEPROM_WREN 0x06
#define SPI_EEPROM_RDSR 0x05
#define SPI_EEPROM_READ 0x03
#define SPI_EEPROM_WRITE 0x02
#ifndef CONFIG_DEFAULT_SPI_BUS
#define CONFIG_DEFAULT_SPI_BUS 0
#endif
#ifndef CONFIG_DEFAULT_SPI_MODE
#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0
#endif
#ifndef CONFIG_SYS_SPI_WRITE_TOUT
#define CONFIG_SYS_SPI_WRITE_TOUT (5 * CONFIG_SYS_HZ)
#endif
ssize_t spi_read(uchar *addr, int alen, uchar *buffer, int len)
{
struct spi_slave *slave;
u8 cmd = SPI_EEPROM_READ;
slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
CONFIG_DEFAULT_SPI_MODE);
if (!slave)
return 0;
spi_claim_bus(slave);
/* command */
if (spi_xfer(slave, 8, &cmd, NULL, SPI_XFER_BEGIN))
return -1;
/*
* if alen == 3, addr[0] is the block number, we never use it here.
* All we need are the lower 16 bits.
*/
if (alen == 3)
addr++;
/* address, and data */
if (spi_xfer(slave, 16, addr, NULL, 0))
return -1;
if (spi_xfer(slave, 8 * len, NULL, buffer, SPI_XFER_END))
return -1;
spi_release_bus(slave);
spi_free_slave(slave);
return len;
}
ssize_t spi_write(uchar *addr, int alen, uchar *buffer, int len)
{
struct spi_slave *slave;
char buf[3];
ulong start;
slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
CONFIG_DEFAULT_SPI_MODE);
if (!slave)
return 0;
spi_claim_bus(slave);
buf[0] = SPI_EEPROM_WREN;
if (spi_xfer(slave, 8, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END))
return -1;
buf[0] = SPI_EEPROM_WRITE;
/* As for reading, drop addr[0] if alen is 3 */
if (alen == 3) {
alen--;
addr++;
}
memcpy(buf + 1, addr, alen);
/* command + addr, then data */
if (spi_xfer(slave, 24, buf, NULL, SPI_XFER_BEGIN))
return -1;
if (spi_xfer(slave, len * 8, buffer, NULL, SPI_XFER_END))
return -1;
start = get_timer(0);
do {
buf[0] = SPI_EEPROM_RDSR;
buf[1] = 0;
spi_xfer(slave, 16, buf, buf, SPI_XFER_BEGIN | SPI_XFER_END);
if (!(buf[1] & 1))
break;
} while (get_timer(start) < CONFIG_SYS_SPI_WRITE_TOUT);
if (buf[1] & 1)
printf("*** spi_write: Timeout while writing!\n");
spi_release_bus(slave);
spi_free_slave(slave);
return len;
}