Merge branch 'mem' of git://git.denx.de/u-boot-x86

README

@@ -3811,6 +3811,15 @@ Low Level (hardware related) configuration options:
 		that is executed before the actual U-Boot. E.g. when
 		compiling a NAND SPL.
 
+- CONFIG_ARCH_MAP_SYSMEM
+		Generally U-Boot (and in particular the md command) uses
+		effective address. It is therefore not necessary to regard
+		U-Boot address as virtual addresses that need to be translated
+		to physical addresses. However, sandbox requires this, since
+		it maintains its own little RAM buffer which contains all
+		addressable memory. This option causes some memory accesses
+		to be mapped through map_sysmem() / unmap_sysmem().
+
 - CONFIG_USE_ARCH_MEMCPY
   CONFIG_USE_ARCH_MEMSET
 		If these options are used a optimized version of memcpy/memset will

arch/sandbox/config.mk

@@ -18,4 +18,5 @@
 # MA 02111-1307 USA
 
 PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__ -U_FORTIFY_SOURCE
+PLATFORM_CPPFLAGS += -DCONFIG_ARCH_MAP_SYSMEM
 PLATFORM_LIBS += -lrt

arch/sandbox/cpu/os.c

@@ -44,6 +44,14 @@ ssize_t os_read(int fd, void *buf, size_t count)
 	return read(fd, buf, count);
 }
 
+ssize_t os_read_no_block(int fd, void *buf, size_t count)
+{
+	const int flags = fcntl(fd, F_GETFL, 0);
+
+	fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+	return os_read(fd, buf, count);
+}
+
 ssize_t os_write(int fd, const void *buf, size_t count)
 {
 	return write(fd, buf, count);

arch/sandbox/cpu/start.c

@@ -122,4 +122,7 @@ int main(int argc, char *argv[])
 	 * never return.
 	 */
 	board_init_f(0);
+
+	/* NOTREACHED - board_init_f() does not return */
+	return 0;
 }

arch/sandbox/include/asm/io.h

@@ -39,3 +39,13 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
 {
 
 }
+
+/* For sandbox, we want addresses to point into our RAM buffer */
+static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
+{
+	return map_physmem(paddr, len, MAP_WRBACK);
+}
+
+static inline void unmap_sysmem(const void *vaddr)
+{
+}

common/cmd_bootm.c

@@ -452,9 +452,7 @@ static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 
 	/* Don't start if "autostart" is set to "no" */
 	if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
-		char buf[32];
-		sprintf(buf, "%lX", images.os.image_len);
-		setenv("filesize", buf);
+		setenv_hex("filesize", images.os.image_len);
 		return 0;
 	}
 	appl = (int (*)(int, char * const []))(ulong)ntohl(images.ep);
@@ -529,17 +527,14 @@ static int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 		case BOOTM_STATE_RAMDISK:
 		{
 			ulong rd_len = images.rd_end - images.rd_start;
-			char str[17];
 
 			ret = boot_ramdisk_high(&images.lmb, images.rd_start,
 				rd_len, &images.initrd_start, &images.initrd_end);
 			if (ret)
 				return ret;
 
-			sprintf(str, "%lx", images.initrd_start);
-			setenv("initrd_start", str);
-			sprintf(str, "%lx", images.initrd_end);
-			setenv("initrd_end", str);
+			setenv_hex("initrd_start", images.initrd_start);
+			setenv_hex("initrd_end", images.initrd_end);
 		}
 			break;
 #endif

common/cmd_cbfs.c

@@ -65,7 +65,6 @@ int do_cbfs_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 	const struct cbfs_cachenode *file;
 	unsigned long offset;
 	unsigned long count;
-	char buf[12];
 	long size;
 
 	if (argc < 3) {
@@ -95,8 +94,7 @@ int do_cbfs_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 
 	printf("\n%ld bytes read\n", size);
 
-	sprintf(buf, "%lX", size);
-	setenv("filesize", buf);
+	setenv_hex("filesize", size);
 
 	return 0;
 }

common/cmd_cramfs.c

@@ -146,11 +146,9 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		size = cramfs_load ((char *) offset, &part, filename);
 
 	if (size > 0) {
-		char buf[10];
 		printf("### CRAMFS load complete: %d bytes loaded to 0x%lx\n",
 			size, offset);
-		sprintf(buf, "%x", size);
-		setenv("filesize", buf);
+		setenv_hex("filesize", size);
 	} else {
 		printf("### CRAMFS LOAD ERROR<%x> for %s!\n", size, filename);
 	}

common/cmd_fdos.c

@@ -40,7 +40,6 @@ int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
     char *name;
     char *ep;
     int size;
-    char buf [12];
     int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
 
     /* pre-set load_addr */
@@ -91,8 +90,7 @@ int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
     }
     flush_cache (load_addr, size);
 
-    sprintf(buf, "%x", size);
-    setenv("filesize", buf);
+    setenv_hex("filesize", size);
 
     printf("Floppy DOS load complete: %d bytes loaded to 0x%lx\n",
 	   size, load_addr);

common/cmd_fdt.c

@@ -55,12 +55,8 @@ struct fdt_header *working_fdt;
 
 void set_working_fdt_addr(void *addr)
 {
-	char buf[17];
-
 	working_fdt = addr;
-
-	sprintf(buf, "%lx", (unsigned long)addr);
-	setenv("fdtaddr", buf);
+	setenv_addr("fdtaddr", addr);
 }
 
 /*
@@ -347,10 +343,7 @@ static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			}
 			if (subcmd[0] == 's') {
 				/* get the num nodes at this level */
-				char buf[11];
-
-				sprintf(buf, "%d", curIndex + 1);
-				setenv(var, buf);
+				setenv_ulong(var, curIndex + 1);
 			} else {
 				/* node index not found */
 				printf("libfdt node not found\n");

common/cmd_hash.c

@@ -26,22 +26,30 @@
 #include <common.h>
 #include <command.h>
 #include <hash.h>
+#include <linux/ctype.h>
 
 static int do_hash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
+	char *s;
 #ifdef CONFIG_HASH_VERIFY
-	int verify = 0;
+	int flags = HASH_FLAG_ENV;
 
+	if (argc < 4)
+		return CMD_RET_USAGE;
 	if (!strcmp(argv[1], "-v")) {
-		verify = 1;
+		flags |= HASH_FLAG_VERIFY;
 		argc--;
 		argv++;
 	}
+#else
+	const int flags = HASH_FLAG_ENV;
 #endif
 	/* Move forward to 'algorithm' parameter */
 	argc--;
 	argv++;
-	return hash_command(*argv, verify, cmdtp, flag, argc - 1, argv + 1);
+	for (s = *argv; *s; s++)
+		*s = tolower(*s);
+	return hash_command(*argv, flags, cmdtp, flag, argc - 1, argv + 1);
 }
 
 #ifdef CONFIG_HASH_VERIFY

common/cmd_jffs2.c

@@ -525,11 +525,9 @@ int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		}
 
 		if (size > 0) {
-			char buf[10];
 			printf("### %s load complete: %d bytes loaded to 0x%lx\n",
 				fsname, size, offset);
-			sprintf(buf, "%x", size);
-			setenv("filesize", buf);
+			setenv_hex("filesize", size);
 		} else {
 			printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
 		}

common/cmd_load.c

@@ -149,7 +149,6 @@ static ulong load_serial(long offset)
 	int	type;				/* return code for record type	*/
 	ulong	addr;				/* load address from S-Record	*/
 	ulong	size;				/* number of bytes transferred	*/
-	char	buf[32];
 	ulong	store_addr;
 	ulong	start_addr = ~0;
 	ulong	end_addr   =  0;
@@ -198,8 +197,7 @@ static ulong load_serial(long offset)
 			    start_addr, end_addr, size, size
 		    );
 		    flush_cache(start_addr, size);
-		    sprintf(buf, "%lX", size);
-		    setenv("filesize", buf);
+		    setenv_hex("filesize", size);
 		    return (addr);
 		case SREC_START:
 		    break;
@@ -519,7 +517,6 @@ static int do_load_serial_bin(cmd_tbl_t *cmdtp, int flag, int argc,
 static ulong load_serial_bin(ulong offset)
 {
 	int size, i;
-	char buf[32];
 
 	set_kerm_bin_mode((ulong *) offset);
 	size = k_recv();
@@ -539,8 +536,7 @@ static ulong load_serial_bin(ulong offset)
 	flush_cache(offset, size);
 
 	printf("## Total Size      = 0x%08x = %d Bytes\n", size, size);
-	sprintf(buf, "%X", size);
-	setenv("filesize", buf);
+	setenv_hex("filesize", size);
 
 	return offset;
 }
@@ -965,7 +961,6 @@ static int getcxmodem(void) {
 static ulong load_serial_ymodem(ulong offset)
 {
 	int size;
-	char buf[32];
 	int err;
 	int res;
 	connection_info_t info;
@@ -1012,8 +1007,7 @@ static ulong load_serial_ymodem(ulong offset)
 	flush_cache(offset, size);
 
 	printf("## Total Size      = 0x%08x = %d Bytes\n", size, size);
-	sprintf(buf, "%X", size);
-	setenv("filesize", buf);
+	setenv_hex("filesize", size);
 
 	return offset;
 }

common/cmd_mtdparts.c

@@ -230,7 +230,6 @@ static void memsize_format(char *buf, u32 size)
  */
 static void index_partitions(void)
 {
-	char buf[16];
 	u16 mtddevnum;
 	struct part_info *part;
 	struct list_head *dentry;
@@ -244,8 +243,7 @@ static void index_partitions(void)
 			dev = list_entry(dentry, struct mtd_device, link);
 			if (dev == current_mtd_dev) {
 				mtddevnum += current_mtd_partnum;
-				sprintf(buf, "%d", mtddevnum);
-				setenv("mtddevnum", buf);
+				setenv_ulong("mtddevnum", mtddevnum);
 				break;
 			}
 			mtddevnum += dev->num_parts;

common/cmd_nand.c

@@ -373,7 +373,6 @@ static void nand_print_and_set_info(int idx)
 {
 	nand_info_t *nand = &nand_info[idx];
 	struct nand_chip *chip = nand->priv;
-	char buf[32];
 
 	printf("Device %d: ", idx);
 	if (chip->numchips > 1)
@@ -385,14 +384,9 @@ static void nand_print_and_set_info(int idx)
 	printf("  Erase size %8d b\n", nand->erasesize);
 
 	/* Set geometry info */
-	sprintf(buf, "%x", nand->writesize);
-	setenv("nand_writesize", buf);
-
-	sprintf(buf, "%x", nand->oobsize);
-	setenv("nand_oobsize", buf);
-
-	sprintf(buf, "%x", nand->erasesize);
-	setenv("nand_erasesize", buf);
+	setenv_hex("nand_writesize", nand->writesize);
+	setenv_hex("nand_oobsize", nand->oobsize);
+	setenv_hex("nand_erasesize", nand->erasesize);
 }
 
 static int raw_access(nand_info_t *nand, ulong addr, loff_t off, ulong count,

common/cmd_nvedit.c

@@ -295,17 +295,17 @@ int setenv_ulong(const char *varname, ulong value)
 }
 
 /**
- * Set an environment variable to an address in hex
+ * Set an environment variable to an value in hex
  *
  * @param varname	Environmet variable to set
- * @param addr		Value to set it to
+ * @param value		Value to set it to
  * @return 0 if ok, 1 on error
  */
-int setenv_addr(const char *varname, const void *addr)
+int setenv_hex(const char *varname, ulong value)
 {
 	char str[17];
 
-	sprintf(str, "%lx", (uintptr_t)addr);
+	sprintf(str, "%lx", value);
 	return setenv(varname, str);
 }
 
@@ -891,8 +891,7 @@ NXTARG:		;
 		envp->flags = ACTIVE_FLAG;
 #endif
 	}
-	sprintf(buf, "%zX", (size_t)(len + offsetof(env_t, data)));
-	setenv("filesize", buf);
+	setenv_hex("filesize", len + offsetof(env_t, data));
 
 	return 0;
 

common/cmd_reiser.c

@@ -100,7 +100,6 @@ int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	ulong addr = 0, filelen;
 	disk_partition_t info;
 	block_dev_desc_t *dev_desc = NULL;
-	char buf [12];
 	unsigned long count;
 	char *addr_str;
 
@@ -175,8 +174,7 @@ int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	load_addr = addr;
 
 	printf ("\n%ld bytes read\n", filelen);
-	sprintf(buf, "%lX", filelen);
-	setenv("filesize", buf);
+	setenv_hex("filesize", filelen);
 
 	return filelen;
 }

common/cmd_setexpr.c

@@ -53,7 +53,7 @@ static ulong get_arg(char *s, int w)
 static int do_setexpr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong a, b;
-	char buf[16];
+	ulong value;
 	int w;
 
 	/* Validate arguments */
@@ -67,8 +67,7 @@ static int do_setexpr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	a = get_arg(argv[2], w);
 
 	if (argc == 3) {
-		sprintf(buf, "%lx", a);
-		setenv(argv[1], buf);
+		setenv_hex(argv[1], a);
 
 		return 0;
 	}
@@ -76,20 +75,36 @@ static int do_setexpr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	b = get_arg(argv[4], w);
 
 	switch (argv[3][0]) {
-	case '|': sprintf(buf, "%lx", (a | b)); break;
-	case '&': sprintf(buf, "%lx", (a & b)); break;
-	case '+': sprintf(buf, "%lx", (a + b)); break;
-	case '^': sprintf(buf, "%lx", (a ^ b)); break;
-	case '-': sprintf(buf, "%lx", (a - b)); break;
-	case '*': sprintf(buf, "%lx", (a * b)); break;
-	case '/': sprintf(buf, "%lx", (a / b)); break;
-	case '%': sprintf(buf, "%lx", (a % b)); break;
+	case '|':
+		value = a | b;
+		break;
+	case '&':
+		value = a & b;
+		break;
+	case '+':
+		value = a + b;
+		break;
+	case '^':
+		value = a ^ b;
+		break;
+	case '-':
+		value = a - b;
+		break;
+	case '*':
+		value = a * b;
+		break;
+	case '/':
+		value = a / b;
+		break;
+	case '%':
+		value = a % b;
+		break;
 	default:
 		printf("invalid op\n");
 		return 1;
 	}
 
-	setenv(argv[1], buf);
+	setenv_hex(argv[1], value);
 
 	return 0;
 }

common/cmd_sha1sum.c

@@ -31,7 +31,7 @@
 
 int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	int verify = 0;
+	int flags = HASH_FLAG_ENV;
 	int ac;
 	char * const *av;
 
@@ -42,13 +42,13 @@ int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	ac = argc - 1;
 #ifdef CONFIG_SHA1SUM_VERIFY
 	if (strcmp(*av, "-v") == 0) {
-		verify = 1;
+		flags |= HASH_FLAG_VERIFY;
 		av++;
 		ac--;
 	}
 #endif
 
-	return hash_command("sha1", verify, cmdtp, flag, ac, av);
+	return hash_command("sha1", flags, cmdtp, flag, ac, av);
 }
 
 #ifdef CONFIG_SHA1SUM_VERIFY

common/cmd_unzip.c

@@ -28,7 +28,6 @@ static int do_unzip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long src, dst;
 	unsigned long src_len = ~0UL, dst_len = ~0UL;
-	char buf[32];
 
 	switch (argc) {
 		case 4:
@@ -46,8 +45,7 @@ static int do_unzip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return 1;
 
 	printf("Uncompressed size: %ld = 0x%lX\n", src_len, src_len);
-	sprintf(buf, "%lX", src_len);
-	setenv("filesize", buf);
+	setenv_hex("filesize", src_len);
 
 	return 0;
 }

common/cmd_ximg.c

@@ -50,7 +50,6 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	ulong		data, len, count;
 	int		verify;
 	int		part = 0;
-	char		pbuf[10];
 	image_header_t	*hdr;
 #if defined(CONFIG_FIT)
 	const char	*uname = NULL;
@@ -256,10 +255,8 @@ do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		puts("OK\n");
 	}
 
-	sprintf(pbuf, "%8lx", data);
-	setenv("fileaddr", pbuf);
-	sprintf(pbuf, "%8lx", len);
-	setenv("filesize", pbuf);
+	setenv_hex("fileaddr", data);
+	setenv_hex("filesize", len);
 
 	return 0;
 }

common/cmd_zfs.c

@@ -129,8 +129,7 @@ static int do_zfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
 	load_addr = addr;
 
 	printf("%llu bytes read\n", zfile.size);
-	sprintf(buf, "%llX", zfile.size);
-	setenv("filesize", buf);
+	setenv_hex("filesize", zfile.size);
 
 	return 0;
 }

common/cmd_zip.c

@@ -28,7 +28,6 @@ static int do_zip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long src, dst;
 	unsigned long src_len, dst_len = ~0UL;
-	char buf[32];
 
 	switch (argc) {
 		case 5:
@@ -47,8 +46,7 @@ static int do_zip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		return 1;
 
 	printf("Compressed size: %ld = 0x%lX\n", dst_len, dst_len);
-	sprintf(buf, "%lX", dst_len);
-	setenv("filesize", buf);
+	setenv_hex("filesize", dst_len);
 
 	return 0;
 }

common/hash.c

@@ -28,49 +28,87 @@
 #include <hash.h>
 #include <sha1.h>
 #include <sha256.h>
+#include <asm/io.h>
 
 /*
  * These are the hash algorithms we support. Chips which support accelerated
- * crypto could perhaps add named version of these algorithms here.
+ * crypto could perhaps add named version of these algorithms here. Note that
+ * algorithm names must be in lower case.
  */
 static struct hash_algo hash_algo[] = {
-#ifdef CONFIG_SHA1
+	/*
+	 * This is CONFIG_CMD_SHA1SUM instead of CONFIG_SHA1 since otherwise
+	 * it bloats the code for boards which use SHA1 but not the 'hash'
+	 * or 'sha1sum' commands.
+	 */
+#ifdef CONFIG_CMD_SHA1SUM
 	{
-		"SHA1",
+		"sha1",
 		SHA1_SUM_LEN,
 		sha1_csum_wd,
 		CHUNKSZ_SHA1,
 	},
+#define MULTI_HASH
 #endif
 #ifdef CONFIG_SHA256
 	{
-		"SHA256",
+		"sha256",
 		SHA256_SUM_LEN,
 		sha256_csum_wd,
 		CHUNKSZ_SHA256,
 	},
+#define MULTI_HASH
 #endif
+	{
+		"crc32",
+		4,
+		crc32_wd_buf,
+		CHUNKSZ_CRC32,
+	},
 };
 
+#if defined(CONFIG_HASH_VERIFY) || defined(CONFIG_CMD_HASH)
+#define MULTI_HASH
+#endif
+
+/* Try to minimize code size for boards that don't want much hashing */
+#ifdef MULTI_HASH
+#define multi_hash()	1
+#else
+#define multi_hash()	0
+#endif
+
 /**
  * store_result: Store the resulting sum to an address or variable
  *
  * @algo:		Hash algorithm being used
  * @sum:		Hash digest (algo->digest_size bytes)
  * @dest:		Destination, interpreted as a hex address if it starts
- *			with * or otherwise as an environment variable.
+ *			with * (or allow_env_vars is 0) or otherwise as an
+ *			environment variable.
+ * @allow_env_vars:	non-zero to permit storing the result to an
+ *			variable environment
  */
 static void store_result(struct hash_algo *algo, const u8 *sum,
-			 const char *dest)
+			 const char *dest, int allow_env_vars)
 {
 	unsigned int i;
+	int env_var = 0;
 
-	if (*dest == '*') {
-		u8 *ptr;
+	/*
+	 * If environment variables are allowed, then we assume that 'dest'
+	 * is an environment variable, unless it starts with *, in which
+	 * case we assume it is an address. If not allowed, it is always an
+	 * address. This is to support the crc32 command.
+	 */
+	if (allow_env_vars) {
+		if (*dest == '*')
+			dest++;
+		else
+			env_var = 1;
+	}
 
-		ptr = (u8 *)simple_strtoul(dest + 1, NULL, 16);
-		memcpy(ptr, sum, algo->digest_size);
-	} else {
+	if (env_var) {
 		char str_output[HASH_MAX_DIGEST_SIZE * 2 + 1];
 		char *str_ptr = str_output;
 
@@ -80,6 +118,14 @@ static void store_result(struct hash_algo *algo, const u8 *sum,
 		}
 		str_ptr = '\0';
 		setenv(dest, str_output);
+	} else {
+		ulong addr;
+		void *buf;
+
+		addr = simple_strtoul(dest, NULL, 16);
+		buf = map_sysmem(addr, algo->digest_size);
+		memcpy(buf, sum, algo->digest_size);
+		unmap_sysmem(buf);
 	}
 }
 
@@ -94,15 +140,31 @@ static void store_result(struct hash_algo *algo, const u8 *sum,
  *			Otherwise we assume it is an environment variable, and
  *			look up its value (it must contain a hex digest).
  * @vsum:		Returns binary digest value (algo->digest_size bytes)
+ * @allow_env_vars:	non-zero to permit storing the result to an environment
+ *			variable. If 0 then verify_str is assumed to be an
+ *			address, and the * prefix is not expected.
  * @return 0 if ok, non-zero on error
  */
-static int parse_verify_sum(struct hash_algo *algo, char *verify_str, u8 *vsum)
+static int parse_verify_sum(struct hash_algo *algo, char *verify_str, u8 *vsum,
+			    int allow_env_vars)
 {
-	if (*verify_str == '*') {
-		u8 *ptr;
+	int env_var = 0;
 
-		ptr = (u8 *)simple_strtoul(verify_str + 1, NULL, 16);
-		memcpy(vsum, ptr, algo->digest_size);
+	/* See comment above in store_result() */
+	if (allow_env_vars) {
+		if (*verify_str == '*')
+			verify_str++;
+		else
+			env_var = 1;
+	}
+
+	if (env_var) {
+		ulong addr;
+		void *buf;
+
+		addr = simple_strtoul(verify_str, NULL, 16);
+		buf = map_sysmem(addr, algo->digest_size);
+		memcpy(vsum, buf, algo->digest_size);
 	} else {
 		unsigned int i;
 		char *vsum_str;
@@ -141,7 +203,7 @@ static struct hash_algo *find_hash_algo(const char *name)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(hash_algo); i++) {
-		if (!strcasecmp(name, hash_algo[i].name))
+		if (!strcmp(name, hash_algo[i].name))
 			return &hash_algo[i];
 	}
 
@@ -158,63 +220,87 @@ static void show_hash(struct hash_algo *algo, ulong addr, ulong len,
 		printf("%02x", output[i]);
 }
 
-int hash_command(const char *algo_name, int verify, cmd_tbl_t *cmdtp, int flag,
+int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
 		 int argc, char * const argv[])
 {
-	struct hash_algo *algo;
 	ulong addr, len;
-	u8 output[HASH_MAX_DIGEST_SIZE];
-	u8 vsum[HASH_MAX_DIGEST_SIZE];
 
 	if (argc < 2)
 		return CMD_RET_USAGE;
 
-	algo = find_hash_algo(algo_name);
-	if (!algo) {
-		printf("Unknown hash algorithm '%s'\n", algo_name);
-		return CMD_RET_USAGE;
-	}
 	addr = simple_strtoul(*argv++, NULL, 16);
 	len = simple_strtoul(*argv++, NULL, 16);
-	argc -= 2;
 
-	if (algo->digest_size > HASH_MAX_DIGEST_SIZE) {
-		puts("HASH_MAX_DIGEST_SIZE exceeded\n");
-		return 1;
-	}
+	if (multi_hash()) {
+		struct hash_algo *algo;
+		u8 output[HASH_MAX_DIGEST_SIZE];
+		u8 vsum[HASH_MAX_DIGEST_SIZE];
+		void *buf;
 
-	algo->hash_func_ws((const unsigned char *)addr, len, output,
-			   algo->chunk_size);
-
-	/* Try to avoid code bloat when verify is not needed */
-#ifdef CONFIG_HASH_VERIFY
-	if (verify) {
-#else
-	if (0) {
-#endif
-		if (!argc)
+		algo = find_hash_algo(algo_name);
+		if (!algo) {
+			printf("Unknown hash algorithm '%s'\n", algo_name);
 			return CMD_RET_USAGE;
-		if (parse_verify_sum(algo, *argv, vsum)) {
-			printf("ERROR: %s does not contain a valid %s sum\n",
-				*argv, algo->name);
+		}
+		argc -= 2;
+
+		if (algo->digest_size > HASH_MAX_DIGEST_SIZE) {
+			puts("HASH_MAX_DIGEST_SIZE exceeded\n");
 			return 1;
 		}
-		if (memcmp(output, vsum, algo->digest_size) != 0) {
-			int i;
 
+		buf = map_sysmem(addr, len);
+		algo->hash_func_ws(buf, len, output, algo->chunk_size);
+		unmap_sysmem(buf);
+
+		/* Try to avoid code bloat when verify is not needed */
+#ifdef CONFIG_HASH_VERIFY
+		if (flags & HASH_FLAG_VERIFY) {
+#else
+		if (0) {
+#endif
+			if (!argc)
+				return CMD_RET_USAGE;
+			if (parse_verify_sum(algo, *argv, vsum,
+					flags & HASH_FLAG_ENV)) {
+				printf("ERROR: %s does not contain a valid "
+					"%s sum\n", *argv, algo->name);
+				return 1;
+			}
+			if (memcmp(output, vsum, algo->digest_size) != 0) {
+				int i;
+
+				show_hash(algo, addr, len, output);
+				printf(" != ");
+				for (i = 0; i < algo->digest_size; i++)
+					printf("%02x", vsum[i]);
+				puts(" ** ERROR **\n");
+				return 1;
+			}
+		} else {
 			show_hash(algo, addr, len, output);
-			printf(" != ");
-			for (i = 0; i < algo->digest_size; i++)
-				printf("%02x", vsum[i]);
-			puts(" ** ERROR **\n");
-			return 1;
-		}
-	} else {
-		show_hash(algo, addr, len, output);
-		printf("\n");
+			printf("\n");
 
-		if (argc)
-			store_result(algo, output, *argv);
+			if (argc) {
+				store_result(algo, output, *argv,
+					flags & HASH_FLAG_ENV);
+			}
+		}
+
+	/* Horrible code size hack for boards that just want crc32 */
+	} else {
+		ulong crc;
+		ulong *ptr;
+
+		crc = crc32_wd(0, (const uchar *)addr, len, CHUNKSZ_CRC32);
+
+		printf("CRC32 for %08lx ... %08lx ==> %08lx\n",
+				addr, addr + len - 1, crc);
+
+		if (argc > 3) {
+			ptr = (ulong *)simple_strtoul(argv[3], NULL, 16);
+			*ptr = crc;
+		}
 	}
 
 	return 0;

common/image.c

@@ -74,6 +74,8 @@ static const image_header_t *image_get_ramdisk(ulong rd_addr, uint8_t arch,
 #include <image.h>
 #endif /* !USE_HOSTCC*/
 
+#include <u-boot/crc.h>
+
 static const table_entry_t uimage_arch[] = {
 	{	IH_ARCH_INVALID,	NULL,		"Invalid ARCH",	},
 	{	IH_ARCH_ALPHA,		"alpha",	"Alpha",	},
@@ -160,8 +162,6 @@ static const table_entry_t uimage_comp[] = {
 	{	-1,		"",		"",			},
 };
 
-uint32_t crc32(uint32_t, const unsigned char *, uint);
-uint32_t crc32_wd(uint32_t, const unsigned char *, uint, uint);
 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
 static void genimg_print_time(time_t timestamp);
 #endif

drivers/net/fm/fm.c

@@ -362,7 +362,6 @@ static void fm_init_qmi(struct fm_qmi_common *qmi)
 int fm_init_common(int index, struct ccsr_fman *reg)
 {
 	int rc;
-	char env_addr[32];
 #if defined(CONFIG_SYS_QE_FMAN_FW_IN_NOR)
 	void *addr = (void *)CONFIG_SYS_QE_FMAN_FW_ADDR;
 #elif defined(CONFIG_SYS_QE_FMAN_FW_IN_NAND)
@@ -416,8 +415,7 @@ int fm_init_common(int index, struct ccsr_fman *reg)
 	rc = fman_upload_firmware(index, &reg->fm_imem, addr);
 	if (rc)
 		return rc;
-	sprintf(env_addr, "0x%lx", (long unsigned int)addr);
-	setenv("fman_ucode", env_addr);
+	setenv_addr("fman_ucode", addr);
 
 	fm_init_muram(index, &reg->muram);
 	fm_init_qmi(&reg->fm_qmi_common);

drivers/serial/sandbox.c

@@ -30,6 +30,19 @@
 #include <serial.h>
 #include <linux/compiler.h>
 
+/*
+ *
+ *   serial_buf: A buffer that holds keyboard characters for the
+ *		 Sandbox U-boot.
+ *
+ * invariants:
+ *   serial_buf_write		 == serial_buf_read -> empty buffer
+ *   (serial_buf_write + 1) % 16 == serial_buf_read -> full buffer
+ */
+static char serial_buf[16];
+static unsigned int serial_buf_write;
+static unsigned int serial_buf_read;
+
 static int sandbox_serial_init(void)
 {
 	os_tty_raw(0);
@@ -50,18 +63,37 @@ static void sandbox_serial_puts(const char *str)
 	os_write(1, str, strlen(str));
 }
 
-static int sandbox_serial_getc(void)
+static unsigned int increment_buffer_index(unsigned int index)
 {
-	char buf;
-	ssize_t count;
-
-	count = os_read(0, &buf, 1);
-	return count == 1 ? buf : 0;
+	return (index + 1) % ARRAY_SIZE(serial_buf);
 }
 
 static int sandbox_serial_tstc(void)
 {
-	return 0;
+	const unsigned int next_index =
+		increment_buffer_index(serial_buf_write);
+	ssize_t count;
+
+	os_usleep(100);
+	if (next_index == serial_buf_read)
+		return 1;	/* buffer full */
+
+	count = os_read_no_block(0, &serial_buf[serial_buf_write], 1);
+	if (count == 1)
+		serial_buf_write = next_index;
+	return serial_buf_write != serial_buf_read;
+}
+
+static int sandbox_serial_getc(void)
+{
+	int result;
+
+	while (!sandbox_serial_tstc())
+		;	/* buffer empty */
+
+	result = serial_buf[serial_buf_read];
+	serial_buf_read = increment_buffer_index(serial_buf_read);
+	return result;
 }
 
 static struct serial_device sandbox_serial_drv = {

fs/fs.c

@@ -256,7 +256,6 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 	unsigned long bytes;
 	unsigned long pos;
 	int len_read;
-	char buf[12];
 	unsigned long time;
 
 	if (argc < 2)
@@ -308,8 +307,7 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 	}
 	puts("\n");
 
-	sprintf(buf, "0x%x", len_read);
-	setenv("filesize", buf);
+	setenv_hex("filesize", len_read);
 
 	return 0;
 }

fs/ubifs/ubifs.c

@@ -687,7 +687,6 @@ int ubifs_load(char *filename, u32 addr, u32 size)
 	int i;
 	int count;
 	int last_block_size = 0;
-	char buf [10];
 
 	c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
 	/* ubifs_findfile will resolve symlinks, so we know that we get
@@ -740,8 +739,7 @@ int ubifs_load(char *filename, u32 addr, u32 size)
 	if (err)
 		printf("Error reading file '%s'\n", filename);
 	else {
-	        sprintf(buf, "%X", size);
-		setenv("filesize", buf);
+		setenv_hex("filesize", size);
 		printf("Done\n");
 	}
 

include/common.h

@@ -270,7 +270,8 @@ int	cpu_init(void);
 phys_size_t initdram (int);
 int	display_options (void);
 void	print_size(unsigned long long, const char *);
-int	print_buffer (ulong addr, void* data, uint width, uint count, uint linelen);
+int print_buffer(ulong addr, const void *data, uint width, uint count,
+		 uint linelen);
 
 /* common/main.c */
 void	main_loop	(void);
@@ -357,7 +358,19 @@ int getenv_yesno(const char *var);
 int	saveenv	     (void);
 int	setenv	     (const char *, const char *);
 int setenv_ulong(const char *varname, ulong value);
-int setenv_addr(const char *varname, const void *addr);
+int setenv_hex(const char *varname, ulong value);
+/**
+ * setenv_addr - Set an environment variable to an address in hex
+ *
+ * @varname:	Environmet variable to set
+ * @addr:	Value to set it to
+ * @return 0 if ok, 1 on error
+ */
+static inline int setenv_addr(const char *varname, const void *addr)
+{
+	return setenv_hex(varname, (ulong)addr);
+}
+
 #ifdef CONFIG_ARM
 # include <asm/mach-types.h>
 # include <asm/setup.h>
@@ -869,6 +882,18 @@ int cpu_disable(int nr);
 int cpu_release(int nr, int argc, char * const argv[]);
 #endif
 
+/* Define a null map_sysmem() if the architecture doesn't use it */
+# ifndef CONFIG_ARCH_MAP_SYSMEM
+static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
+{
+	return (void *)(uintptr_t)paddr;
+}
+
+static inline void unmap_sysmem(const void *vaddr)
+{
+}
+# endif
+
 #endif /* __ASSEMBLY__ */
 
 #ifdef CONFIG_PPC

include/configs/sandbox.h

@@ -63,8 +63,8 @@
 #define CONFIG_SYS_HZ			1000
 
 /* Memory things - we don't really want a memory test */
-#define CONFIG_SYS_LOAD_ADDR		0x10000000
-#define CONFIG_SYS_MEMTEST_START	0x10000000
+#define CONFIG_SYS_LOAD_ADDR		0x00000000
+#define CONFIG_SYS_MEMTEST_START	0x00100000
 #define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + 0x1000)
 #define CONFIG_PHYS_64BIT
 
@@ -85,6 +85,11 @@
 #undef CONFIG_CMD_NET
 #undef CONFIG_CMD_NFS
 
+#define CONFIG_CMD_HASH
+#define CONFIG_HASH_VERIFY
+#define CONFIG_SHA1
+#define CONFIG_SHA256
+
 #define CONFIG_BOOTARGS ""
 
 #define CONFIG_EXTRA_ENV_SETTINGS	"stdin=serial\0" \

include/hash.h

@@ -22,7 +22,7 @@
 #ifndef _HASH_H
 #define _HASH_H
 
-#ifdef CONFIG_SHA1SUM_VERIFY
+#if defined(CONFIG_SHA1SUM_VERIFY) || defined(CONFIG_CRC32_VERIFY)
 #define CONFIG_HASH_VERIFY
 #endif
 
@@ -51,19 +51,24 @@ struct hash_algo {
  */
 #define HASH_MAX_DIGEST_SIZE	32
 
+enum {
+	HASH_FLAG_VERIFY	= 1 << 0,	/* Enable verify mode */
+	HASH_FLAG_ENV		= 1 << 1,	/* Allow env vars */
+};
+
 /**
  * hash_command: Process a hash command for a particular algorithm
  *
  * This common function is used to implement specific hash commands.
  *
- * @algo_name:		Hash algorithm being used
- * @verify:		Non-zero to enable verify mode
+ * @algo_name:		Hash algorithm being used (lower case!)
+ * @flags:		Flags value (HASH_FLAG_...)
  * @cmdtp:		Pointer to command table entry
  * @flag:		Some flags normally 0 (see CMD_FLAG_.. above)
  * @argc:		Number of arguments (arg 0 must be the command text)
  * @argv:		Arguments
  */
-int hash_command(const char *algo_name, int verify, cmd_tbl_t *cmdtp, int flag,
+int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
 		 int argc, char * const argv[]);
 
 #endif

include/os.h

@@ -39,6 +39,16 @@ struct sandbox_state;
  */
 ssize_t os_read(int fd, void *buf, size_t count);
 
+/**
+ * Access to the OS read() system call with non-blocking access
+ *
+ * \param fd	File descriptor as returned by os_open()
+ * \param buf	Buffer to place data
+ * \param count	Number of bytes to read
+ * \return number of bytes read, or -1 on error
+ */
+ssize_t os_read_no_block(int fd, void *buf, size_t count);
+
 /**
  * Access to the OS write() system call
  *

include/u-boot/crc.h

@@ -30,4 +30,15 @@ uint32_t crc32 (uint32_t, const unsigned char *, uint);
 uint32_t crc32_wd (uint32_t, const unsigned char *, uint, uint);
 uint32_t crc32_no_comp (uint32_t, const unsigned char *, uint);
 
+/**
+ * crc32_wd_buf - Perform CRC32 on a buffer and return result in buffer
+ *
+ * @input:	Input buffer
+ * @ilen:	Input buffer length
+ * @output:	Place to put checksum result (4 bytes)
+ * @chunk_sz:	Trigger watchdog after processing this many bytes
+ */
+void crc32_wd_buf(const unsigned char *input, uint ilen,
+		    unsigned char *output, uint chunk_sz);
+
 #endif /* _UBOOT_CRC_H */

lib/crc32.c

@@ -249,3 +249,12 @@ uint32_t ZEXPORT crc32_wd (uint32_t crc,
 
 	return crc;
 }
+
+void crc32_wd_buf(const unsigned char *input, unsigned int ilen,
+		unsigned char *output, unsigned int chunk_sz)
+{
+	uint32_t crc;
+
+	crc = crc32_wd(0, input, ilen, chunk_sz);
+	memcpy(output, &crc, sizeof(crc));
+}

lib/display_options.c

@@ -98,7 +98,8 @@ void print_size(unsigned long long size, const char *s)
  */
 #define MAX_LINE_LENGTH_BYTES (64)
 #define DEFAULT_LINE_LENGTH_BYTES (16)
-int print_buffer (ulong addr, void* data, uint width, uint count, uint linelen)
+int print_buffer(ulong addr, const void *data, uint width, uint count,
+		 uint linelen)
 {
 	/* linebuf as a union causes proper alignment */
 	union linebuf {

net/net.c

@@ -528,15 +528,11 @@ restart:
 		case NETLOOP_SUCCESS:
 			net_cleanup_loop();
 			if (NetBootFileXferSize > 0) {
-				char buf[20];
 				printf("Bytes transferred = %ld (%lx hex)\n",
 					NetBootFileXferSize,
 					NetBootFileXferSize);
-				sprintf(buf, "%lX", NetBootFileXferSize);
-				setenv("filesize", buf);
-
-				sprintf(buf, "%lX", (unsigned long)load_addr);
-				setenv("fileaddr", buf);
+				setenv_hex("filesize", NetBootFileXferSize);
+				setenv_hex("fileaddr", load_addr);
 			}
 			if (protocol != NETCONS)
 				eth_halt();