- "nboot - boot from NAND device\n",
- "[partition] | [[[loadAddr] dev] offset]\n");
-
-#endif
-
-#else /* CONFIG_NAND_LEGACY */
-/*
- *
- * Legacy NAND support - to be phased out
- *
- */
-#include <command.h>
-#include <malloc.h>
-#include <asm/io.h>
-#include <watchdog.h>
-
-#ifdef CONFIG_show_boot_progress
-# include <status_led.h>
-# define show_boot_progress(arg) show_boot_progress(arg)
-#else
-# define show_boot_progress(arg)
-#endif
-
-#if defined(CONFIG_CMD_NAND)
-#include <linux/mtd/nand_legacy.h>
-#if 0
-#include <linux/mtd/nand_ids.h>
-#include <jffs2/jffs2.h>
-#endif
-
-#ifdef CONFIG_OMAP1510
-void archflashwp(void *archdata, int wp);
-#endif
-
-#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
-
-#undef NAND_DEBUG
-#undef PSYCHO_DEBUG
-
-/* ****************** WARNING *********************
- * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
- * erase (or at least attempt to erase) blocks that are marked
- * bad. This can be very handy if you are _sure_ that the block
- * is OK, say because you marked a good block bad to test bad
- * block handling and you are done testing, or if you have
- * accidentally marked blocks bad.
- *
- * Erasing factory marked bad blocks is a _bad_ idea. If the
- * erase succeeds there is no reliable way to find them again,
- * and attempting to program or erase bad blocks can affect
- * the data in _other_ (good) blocks.
- */
-#define ALLOW_ERASE_BAD_DEBUG 0
-
-#define CONFIG_MTD_NAND_ECC /* enable ECC */
-#define CONFIG_MTD_NAND_ECC_JFFS2
-
-/* bits for nand_legacy_rw() `cmd'; or together as needed */
-#define NANDRW_READ 0x01
-#define NANDRW_WRITE 0x00
-#define NANDRW_JFFS2 0x02
-#define NANDRW_JFFS2_SKIP 0x04
-
-/*
- * Imports from nand_legacy.c
- */
-extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
-extern int curr_device;
-extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
- size_t len, int clean);
-extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
- size_t len, size_t *retlen, u_char *buf);
-extern void nand_print(struct nand_chip *nand);
-extern void nand_print_bad(struct nand_chip *nand);
-extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
- size_t len, size_t *retlen, u_char *buf);
-extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
- size_t len, size_t *retlen, const u_char *buf);
-
-
-int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
-{
- int rcode = 0;
-
- switch (argc) {
- case 0:
- case 1:
- printf ("Usage:\n%s\n", cmdtp->usage);
- return 1;
- case 2:
- if (strcmp (argv[1], "info") == 0) {
- int i;
-
- putc ('\n');
-
- for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; ++i) {
- if (nand_dev_desc[i].ChipID ==
- NAND_ChipID_UNKNOWN)
- continue; /* list only known devices */
- printf ("Device %d: ", i);
- nand_print (&nand_dev_desc[i]);
- }
- return 0;
-
- } else if (strcmp (argv[1], "device") == 0) {
- if ((curr_device < 0)
- || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) {
- puts ("\nno devices available\n");
- return 1;
- }
- printf ("\nDevice %d: ", curr_device);
- nand_print (&nand_dev_desc[curr_device]);
- return 0;
-
- } else if (strcmp (argv[1], "bad") == 0) {
- if ((curr_device < 0)
- || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) {
- puts ("\nno devices available\n");
- return 1;
- }
- printf ("\nDevice %d bad blocks:\n", curr_device);
- nand_print_bad (&nand_dev_desc[curr_device]);
- return 0;
-
- }
- printf ("Usage:\n%s\n", cmdtp->usage);
- return 1;
- case 3:
- if (strcmp (argv[1], "device") == 0) {
- int dev = (int) simple_strtoul (argv[2], NULL, 10);
-
- printf ("\nDevice %d: ", dev);
- if (dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
- puts ("unknown device\n");
- return 1;
- }
- nand_print (&nand_dev_desc[dev]);
- /*nand_print (dev); */
-
- if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
- return 1;
- }
-
- curr_device = dev;
-
- puts ("... is now current device\n");
-
- return 0;
- } else if (strcmp (argv[1], "erase") == 0
- && strcmp (argv[2], "clean") == 0) {
- struct nand_chip *nand = &nand_dev_desc[curr_device];
- ulong off = 0;
- ulong size = nand->totlen;
- int ret;
-
- printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
-
- ret = nand_legacy_erase (nand, off, size, 1);
-
- printf ("%s\n", ret ? "ERROR" : "OK");
-
- return ret;
- }
-
- printf ("Usage:\n%s\n", cmdtp->usage);
- return 1;
- default:
- /* at least 4 args */
-
- if (strncmp (argv[1], "read", 4) == 0 ||
- strncmp (argv[1], "write", 5) == 0) {
- ulong addr = simple_strtoul (argv[2], NULL, 16);
- off_t off = simple_strtoul (argv[3], NULL, 16);
- size_t size = simple_strtoul (argv[4], NULL, 16);
- int cmd = (strncmp (argv[1], "read", 4) == 0) ?
- NANDRW_READ : NANDRW_WRITE;
- size_t total;
- int ret;
- char *cmdtail = strchr (argv[1], '.');
-
- if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
- /* read out-of-band data */
- if (cmd & NANDRW_READ) {
- ret = nand_read_oob (nand_dev_desc + curr_device,
- off, size, &total,
- (u_char *) addr);
- } else {
- ret = nand_write_oob (nand_dev_desc + curr_device,
- off, size, &total,
- (u_char *) addr);
- }
- return ret;
- } else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 7)) {
- cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
- if (cmd & NANDRW_READ)
- cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
- } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
- cmd |= NANDRW_JFFS2; /* skip bad blocks */
-#ifdef SXNI855T
- /* need ".e" same as ".j" for compatibility with older units */
- else if (cmdtail && !strcmp (cmdtail, ".e"))
- cmd |= NANDRW_JFFS2; /* skip bad blocks */
-#endif
-#ifdef CONFIG_SYS_NAND_SKIP_BAD_DOT_I
- /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
- /* ".i" for image -> read skips bad block (no 0xff) */
- else if (cmdtail && !strcmp (cmdtail, ".i")) {
- cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
- if (cmd & NANDRW_READ)
- cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
- }
-#endif /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */
- else if (cmdtail) {
- printf ("Usage:\n%s\n", cmdtp->usage);
- return 1;
- }
-
- printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
- (cmd & NANDRW_READ) ? "read" : "write",
- curr_device, off, (ulong)size);
-
- ret = nand_legacy_rw (nand_dev_desc + curr_device,
- cmd, off, size,
- &total, (u_char *) addr);
-
- printf (" %d bytes %s: %s\n", total,
- (cmd & NANDRW_READ) ? "read" : "written",
- ret ? "ERROR" : "OK");
-
- return ret;
- } else if (strcmp (argv[1], "erase") == 0 &&
- (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
- int clean = argc == 5;
- ulong off =
- simple_strtoul (argv[2 + clean], NULL, 16);
- ulong size =
- simple_strtoul (argv[3 + clean], NULL, 16);
- int ret;
-
- printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
- curr_device, off, size);
-
- ret = nand_legacy_erase (nand_dev_desc + curr_device,
- off, size, clean);
-
- printf ("%s\n", ret ? "ERROR" : "OK");
-
- return ret;
- } else {
- printf ("Usage:\n%s\n", cmdtp->usage);
- rcode = 1;
- }
-
- return rcode;
- }
-}
-
-U_BOOT_CMD(
- nand, 5, 1, do_nand,
- "nand - legacy NAND sub-system\n",
- "info - show available NAND devices\n"
- "nand device [dev] - show or set current device\n"
- "nand read[.jffs2[s]] addr off size\n"
- "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
- " at offset `off' to/from memory address `addr'\n"
- "nand erase [clean] [off size] - erase `size' bytes from\n"
- " offset `off' (entire device if not specified)\n"
- "nand bad - show bad blocks\n"
- "nand read.oob addr off size - read out-of-band data\n"
- "nand write.oob addr off size - read out-of-band data\n"