#include <asm/io.h>
#include <asm/byteorder.h>
#include <environment.h>
-#ifdef CFG_FLASH_CFI_DRIVER
/*
* This file implements a Common Flash Interface (CFI) driver for
#define FLASH_CMD_PROTECT_SET 0x01
#define FLASH_CMD_PROTECT_CLEAR 0xD0
#define FLASH_CMD_CLEAR_STATUS 0x50
+#define FLASH_CMD_READ_STATUS 0x70
#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
+#define FLASH_CMD_WRITE_BUFFER_PROG 0xE9
#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
#define FLASH_STATUS_DONE 0x80
#define AMD_STATUS_TOGGLE 0x40
#define AMD_STATUS_ERROR 0x20
+#define ATM_CMD_UNLOCK_SECT 0x70
+#define ATM_CMD_SOFTLOCK_START 0x80
+#define ATM_CMD_LOCK_SECT 0x40
+
#define FLASH_OFFSET_MANUFACTURER_ID 0x00
#define FLASH_OFFSET_DEVICE_ID 0x01
#define FLASH_OFFSET_DEVICE_ID2 0x0E
#define CFI_CMDSET_MITSU_STANDARD 256
#define CFI_CMDSET_MITSU_EXTENDED 257
#define CFI_CMDSET_SST 258
+#define CFI_CMDSET_INTEL_PROG_REGIONS 512
#ifdef CFG_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */
# undef FLASH_CMD_RESET
unsigned long long ll;
} cfiword_t;
-typedef union {
- volatile unsigned char *cp;
- volatile unsigned short *wp;
- volatile unsigned long *lp;
- volatile unsigned long long *llp;
-} cfiptr_t;
-
#define NUM_ERASE_REGIONS 4 /* max. number of erase regions */
static uint flash_offset_cfi[2] = { FLASH_OFFSET_CFI, FLASH_OFFSET_CFI_ALT };
/* use CFG_MAX_FLASH_BANKS_DETECT if defined */
#ifdef CFG_MAX_FLASH_BANKS_DETECT
-static ulong bank_base[CFG_MAX_FLASH_BANKS_DETECT] = CFG_FLASH_BANKS_LIST;
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS_DETECT]; /* FLASH chips info */
+# define CFI_MAX_FLASH_BANKS CFG_MAX_FLASH_BANKS_DETECT
#else
-static ulong bank_base[CFG_MAX_FLASH_BANKS] = CFG_FLASH_BANKS_LIST;
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* FLASH chips info */
+# define CFI_MAX_FLASH_BANKS CFG_MAX_FLASH_BANKS
#endif
+flash_info_t flash_info[CFI_MAX_FLASH_BANKS]; /* FLASH chips info */
+
/*
* Check if chip width is defined. If not, start detecting with 8bit.
*/
#define CFG_FLASH_CFI_WIDTH FLASH_CFI_8BIT
#endif
+typedef unsigned long flash_sect_t;
+
+/* CFI standard query structure */
+struct cfi_qry {
+ u8 qry[3];
+ u16 p_id;
+ u16 p_adr;
+ u16 a_id;
+ u16 a_adr;
+ u8 vcc_min;
+ u8 vcc_max;
+ u8 vpp_min;
+ u8 vpp_max;
+ u8 word_write_timeout_typ;
+ u8 buf_write_timeout_typ;
+ u8 block_erase_timeout_typ;
+ u8 chip_erase_timeout_typ;
+ u8 word_write_timeout_max;
+ u8 buf_write_timeout_max;
+ u8 block_erase_timeout_max;
+ u8 chip_erase_timeout_max;
+ u8 dev_size;
+ u16 interface_desc;
+ u16 max_buf_write_size;
+ u8 num_erase_regions;
+ u32 erase_region_info[NUM_ERASE_REGIONS];
+} __attribute__((packed));
+
+struct cfi_pri_hdr {
+ u8 pri[3];
+ u8 major_version;
+ u8 minor_version;
+} __attribute__((packed));
+
+static void flash_write8(u8 value, void *addr)
+{
+ __raw_writeb(value, addr);
+}
+
+static void flash_write16(u16 value, void *addr)
+{
+ __raw_writew(value, addr);
+}
+
+static void flash_write32(u32 value, void *addr)
+{
+ __raw_writel(value, addr);
+}
+
+static void flash_write64(u64 value, void *addr)
+{
+ /* No architectures currently implement __raw_writeq() */
+ *(volatile u64 *)addr = value;
+}
+
+static u8 flash_read8(void *addr)
+{
+ return __raw_readb(addr);
+}
+
+static u16 flash_read16(void *addr)
+{
+ return __raw_readw(addr);
+}
+
+static u32 flash_read32(void *addr)
+{
+ return __raw_readl(addr);
+}
+
+static u64 __flash_read64(void *addr)
+{
+ /* No architectures currently implement __raw_readq() */
+ return *(volatile u64 *)addr;
+}
+
+u64 flash_read64(void *addr)__attribute__((weak, alias("__flash_read64")));
/*-----------------------------------------------------------------------
- * Functions
*/
+#if defined(CONFIG_ENV_IS_IN_FLASH) || defined(CONFIG_ENV_ADDR_REDUND) || (CFG_MONITOR_BASE >= CFG_FLASH_BASE)
+static flash_info_t *flash_get_info(ulong base)
+{
+ int i;
+ flash_info_t * info = 0;
-typedef unsigned long flash_sect_t;
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+ info = & flash_info[i];
+ if (info->size && info->start[0] <= base &&
+ base <= info->start[0] + info->size - 1)
+ break;
+ }
-static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c);
-static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf);
-static void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd);
-static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect);
-static int flash_isequal (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd);
-static int flash_isset (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd);
-static int flash_toggle (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd);
-static void flash_read_jedec_ids (flash_info_t * info);
-static int flash_detect_cfi (flash_info_t * info);
-static int flash_write_cfiword (flash_info_t * info, ulong dest,
- cfiword_t cword);
-static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
- ulong tout, char *prompt);
-ulong flash_get_size (ulong base, int banknum);
-#if defined(CFG_ENV_IS_IN_FLASH) || defined(CFG_ENV_ADDR_REDUND) || (CFG_MONITOR_BASE >= CFG_FLASH_BASE)
-static flash_info_t *flash_get_info(ulong base);
-#endif
-#ifdef CFG_FLASH_USE_BUFFER_WRITE
-static int flash_write_cfibuffer (flash_info_t * info, ulong dest,
- uchar * cp, int len);
+ return i == CFG_MAX_FLASH_BANKS ? 0 : info;
+}
#endif
+unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect)
+{
+ if (sect != (info->sector_count - 1))
+ return info->start[sect + 1] - info->start[sect];
+ else
+ return info->start[0] + info->size - info->start[sect];
+}
+
/*-----------------------------------------------------------------------
* create an address based on the offset and the port width
*/
-inline uchar *
-flash_make_addr (flash_info_t * info, flash_sect_t sect, uint offset)
+static inline void *
+flash_map (flash_info_t * info, flash_sect_t sect, uint offset)
+{
+ unsigned int byte_offset = offset * info->portwidth;
+
+ return map_physmem(info->start[sect] + byte_offset,
+ flash_sector_size(info, sect) - byte_offset,
+ MAP_NOCACHE);
+}
+
+static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
+ unsigned int offset, void *addr)
+{
+ unsigned int byte_offset = offset * info->portwidth;
+
+ unmap_physmem(addr, flash_sector_size(info, sect) - byte_offset);
+}
+
+/*-----------------------------------------------------------------------
+ * make a proper sized command based on the port and chip widths
+ */
+static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf)
{
- return ((uchar *) (info->start[sect] + (offset * info->portwidth)));
+ int i;
+ int cword_offset;
+ int cp_offset;
+#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
+ u32 cmd_le = cpu_to_le32(cmd);
+#endif
+ uchar val;
+ uchar *cp = (uchar *) cmdbuf;
+
+ for (i = info->portwidth; i > 0; i--){
+ cword_offset = (info->portwidth-i)%info->chipwidth;
+#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
+ cp_offset = info->portwidth - i;
+ val = *((uchar*)&cmd_le + cword_offset);
+#else
+ cp_offset = i - 1;
+ val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1);
+#endif
+ cp[cp_offset] = (cword_offset >= sizeof(u32)) ? 0x00 : val;
+ }
}
#ifdef DEBUG
/*-----------------------------------------------------------------------
* Debug support
*/
-void print_longlong (char *str, unsigned long long data)
+static void print_longlong (char *str, unsigned long long data)
{
int i;
char *cp;
for (i = 0; i < 8; i++)
sprintf (&str[i * 2], "%2.2x", *cp++);
}
-static void flash_printqry (flash_info_t * info, flash_sect_t sect)
+
+static void flash_printqry (struct cfi_qry *qry)
{
- cfiptr_t cptr;
+ u8 *p = (u8 *)qry;
int x, y;
- for (x = 0; x < 0x40; x += 16U / info->portwidth) {
- cptr.cp =
- flash_make_addr (info, sect,
- x + FLASH_OFFSET_CFI_RESP);
- debug ("%p : ", cptr.cp);
+ for (x = 0; x < sizeof(struct cfi_qry); x += 16) {
+ debug("%02x : ", x);
+ for (y = 0; y < 16; y++)
+ debug("%2.2x ", p[x + y]);
+ debug(" ");
for (y = 0; y < 16; y++) {
- debug ("%2.2x ", cptr.cp[y]);
- }
- debug (" ");
- for (y = 0; y < 16; y++) {
- if (cptr.cp[y] >= 0x20 && cptr.cp[y] <= 0x7e) {
- debug ("%c", cptr.cp[y]);
- } else {
- debug (".");
- }
+ unsigned char c = p[x + y];
+ if (c >= 0x20 && c <= 0x7e)
+ debug("%c", c);
+ else
+ debug(".");
}
- debug ("\n");
+ debug("\n");
}
}
#endif
/*-----------------------------------------------------------------------
* read a character at a port width address
*/
-inline uchar flash_read_uchar (flash_info_t * info, uint offset)
+static inline uchar flash_read_uchar (flash_info_t * info, uint offset)
{
uchar *cp;
+ uchar retval;
- cp = flash_make_addr (info, 0, offset);
+ cp = flash_map (info, 0, offset);
#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
- return (cp[0]);
+ retval = flash_read8(cp);
#else
- return (cp[info->portwidth - 1]);
+ retval = flash_read8(cp + info->portwidth - 1);
#endif
+ flash_unmap (info, 0, offset, cp);
+ return retval;
}
/*-----------------------------------------------------------------------
- * read a short word by swapping for ppc format.
+ * read a word at a port width address, assume 16bit bus
*/
-ushort flash_read_ushort (flash_info_t * info, flash_sect_t sect, uint offset)
+static inline ushort flash_read_word (flash_info_t * info, uint offset)
{
- uchar *addr;
- ushort retval;
-
-#ifdef DEBUG
- int x;
-#endif
- addr = flash_make_addr (info, sect, offset);
-
-#ifdef DEBUG
- debug ("ushort addr is at %p info->portwidth = %d\n", addr,
- info->portwidth);
- for (x = 0; x < 2 * info->portwidth; x++) {
- debug ("addr[%x] = 0x%x\n", x, addr[x]);
- }
-#endif
-#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
- retval = ((addr[(info->portwidth)] << 8) | addr[0]);
-#else
- retval = ((addr[(2 * info->portwidth) - 1] << 8) |
- addr[info->portwidth - 1]);
-#endif
+ ushort *addr, retval;
- debug ("retval = 0x%x\n", retval);
+ addr = flash_map (info, 0, offset);
+ retval = flash_read16 (addr);
+ flash_unmap (info, 0, offset, addr);
return retval;
}
+
/*-----------------------------------------------------------------------
* read a long word by picking the least significant byte of each maximum
* port size word. Swap for ppc format.
*/
-ulong flash_read_long (flash_info_t * info, flash_sect_t sect, uint offset)
+static ulong flash_read_long (flash_info_t * info, flash_sect_t sect,
+ uint offset)
{
uchar *addr;
ulong retval;
#ifdef DEBUG
int x;
#endif
- addr = flash_make_addr (info, sect, offset);
+ addr = flash_map (info, sect, offset);
#ifdef DEBUG
debug ("long addr is at %p info->portwidth = %d\n", addr,
info->portwidth);
for (x = 0; x < 4 * info->portwidth; x++) {
- debug ("addr[%x] = 0x%x\n", x, addr[x]);
+ debug ("addr[%x] = 0x%x\n", x, flash_read8(addr + x));
}
#endif
#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
- retval = (addr[0] << 16) | (addr[(info->portwidth)] << 24) |
- (addr[(2 * info->portwidth)]) |
- (addr[(3 * info->portwidth)] << 8);
+ retval = ((flash_read8(addr) << 16) |
+ (flash_read8(addr + info->portwidth) << 24) |
+ (flash_read8(addr + 2 * info->portwidth)) |
+ (flash_read8(addr + 3 * info->portwidth) << 8));
#else
- retval = (addr[(2 * info->portwidth) - 1] << 24) |
- (addr[(info->portwidth) - 1] << 16) |
- (addr[(4 * info->portwidth) - 1] << 8) |
- addr[(3 * info->portwidth) - 1];
+ retval = ((flash_read8(addr + 2 * info->portwidth - 1) << 24) |
+ (flash_read8(addr + info->portwidth - 1) << 16) |
+ (flash_read8(addr + 4 * info->portwidth - 1) << 8) |
+ (flash_read8(addr + 3 * info->portwidth - 1)));
#endif
+ flash_unmap(info, sect, offset, addr);
+
return retval;
}
-
-#ifdef CONFIG_FLASH_CFI_LEGACY
-/*-----------------------------------------------------------------------
- * Call board code to request info about non-CFI flash.
- * board_flash_get_legacy needs to fill in at least:
- * info->portwidth, info->chipwidth and info->interface for Jedec probing.
+/*
+ * Write a proper sized command to the correct address
*/
-int flash_detect_legacy(ulong base, int banknum)
+static void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
+ uint offset, u32 cmd)
{
- flash_info_t *info = &flash_info[banknum];
- if (board_flash_get_legacy(base, banknum, info)) {
- /* board code may have filled info completely. If not, we
- use JEDEC ID probing. */
- if (!info->vendor) {
- int modes[] = {
- CFI_CMDSET_AMD_STANDARD,
- CFI_CMDSET_INTEL_STANDARD
- };
- int i;
+ void *addr;
+ cfiword_t cword;
- for (i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) {
- info->vendor = modes[i];
- info->start[0] = base;
- if (info->portwidth == FLASH_CFI_8BIT
- && info->interface == FLASH_CFI_X8X16) {
- info->addr_unlock1 = 0x2AAA;
- info->addr_unlock2 = 0x5555;
- } else {
- info->addr_unlock1 = 0x5555;
- info->addr_unlock2 = 0x2AAA;
- }
- flash_read_jedec_ids(info);
- debug("JEDEC PROBE: ID %x %x %x\n",
- info->manufacturer_id,
- info->device_id,
- info->device_id2);
- if (jedec_flash_match(info, base))
- break;
- }
- }
+ addr = flash_map (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr, cmd,
+ cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ flash_write8(cword.c, addr);
+ break;
+ case FLASH_CFI_16BIT:
+ debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr,
+ cmd, cword.w,
+ info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ flash_write16(cword.w, addr);
+ break;
+ case FLASH_CFI_32BIT:
+ debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr,
+ cmd, cword.l,
+ info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ flash_write32(cword.l, addr);
+ break;
+ case FLASH_CFI_64BIT:
+#ifdef DEBUG
+ {
+ char str[20];
- switch(info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- info->cmd_reset = FLASH_CMD_RESET;
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- case CFI_CMDSET_AMD_LEGACY:
- info->cmd_reset = AMD_CMD_RESET;
- break;
+ print_longlong (str, cword.ll);
+
+ debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
+ addr, cmd, str,
+ info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
}
- info->flash_id = FLASH_MAN_CFI;
- return 1;
+#endif
+ flash_write64(cword.ll, addr);
+ break;
}
- return 0; /* use CFI */
+
+ /* Ensure all the instructions are fully finished */
+ sync();
+
+ flash_unmap(info, sect, offset, addr);
}
-#else
-int inline flash_detect_legacy(ulong base, int banknum)
+
+static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
{
- return 0; /* use CFI */
+ flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START);
+ flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK);
}
-#endif
-
/*-----------------------------------------------------------------------
*/
-unsigned long flash_init (void)
+static int flash_isequal (flash_info_t * info, flash_sect_t sect,
+ uint offset, uchar cmd)
{
- unsigned long size = 0;
- int i;
+ void *addr;
+ cfiword_t cword;
+ int retval;
-#ifdef CFG_FLASH_PROTECTION
- char *s = getenv("unlock");
-#endif
+ addr = flash_map (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
- /* Init: no FLASHes known */
- for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
+ debug ("is= cmd %x(%c) addr %p ", cmd, cmd, addr);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ debug ("is= %x %x\n", flash_read8(addr), cword.c);
+ retval = (flash_read8(addr) == cword.c);
+ break;
+ case FLASH_CFI_16BIT:
+ debug ("is= %4.4x %4.4x\n", flash_read16(addr), cword.w);
+ retval = (flash_read16(addr) == cword.w);
+ break;
+ case FLASH_CFI_32BIT:
+ debug ("is= %8.8x %8.8lx\n", flash_read32(addr), cword.l);
+ retval = (flash_read32(addr) == cword.l);
+ break;
+ case FLASH_CFI_64BIT:
+#ifdef DEBUG
+ {
+ char str1[20];
+ char str2[20];
- if (!flash_detect_legacy (bank_base[i], i))
- flash_get_size (bank_base[i], i);
- size += flash_info[i].size;
- if (flash_info[i].flash_id == FLASH_UNKNOWN) {
-#ifndef CFG_FLASH_QUIET_TEST
- printf ("## Unknown FLASH on Bank %d "
- "- Size = 0x%08lx = %ld MB\n",
- i+1, flash_info[i].size,
- flash_info[i].size << 20);
-#endif /* CFG_FLASH_QUIET_TEST */
+ print_longlong (str1, flash_read64(addr));
+ print_longlong (str2, cword.ll);
+ debug ("is= %s %s\n", str1, str2);
}
-#ifdef CFG_FLASH_PROTECTION
- else if ((s != NULL) && (strcmp(s, "yes") == 0)) {
- /*
- * Only the U-Boot image and it's environment
- * is protected, all other sectors are
- * unprotected (unlocked) if flash hardware
- * protection is used (CFG_FLASH_PROTECTION)
- * and the environment variable "unlock" is
- * set to "yes".
- */
- if (flash_info[i].legacy_unlock) {
- int k;
-
- /*
- * Disable legacy_unlock temporarily,
- * since flash_real_protect would
- * relock all other sectors again
- * otherwise.
- */
- flash_info[i].legacy_unlock = 0;
+#endif
+ retval = (flash_read64(addr) == cword.ll);
+ break;
+ default:
+ retval = 0;
+ break;
+ }
+ flash_unmap(info, sect, offset, addr);
- /*
- * Legacy unlocking (e.g. Intel J3) ->
- * unlock only one sector. This will
- * unlock all sectors.
- */
- flash_real_protect (&flash_info[i], 0, 0);
+ return retval;
+}
- flash_info[i].legacy_unlock = 1;
+/*-----------------------------------------------------------------------
+ */
+static int flash_isset (flash_info_t * info, flash_sect_t sect,
+ uint offset, uchar cmd)
+{
+ void *addr;
+ cfiword_t cword;
+ int retval;
- /*
- * Manually mark other sectors as
- * unlocked (unprotected)
- */
- for (k = 1; k < flash_info[i].sector_count; k++)
- flash_info[i].protect[k] = 0;
- } else {
- /*
- * No legancy unlocking -> unlock all sectors
- */
- flash_protect (FLAG_PROTECT_CLEAR,
- flash_info[i].start[0],
- flash_info[i].start[0]
- + flash_info[i].size - 1,
- &flash_info[i]);
+ addr = flash_map (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ retval = ((flash_read8(addr) & cword.c) == cword.c);
+ break;
+ case FLASH_CFI_16BIT:
+ retval = ((flash_read16(addr) & cword.w) == cword.w);
+ break;
+ case FLASH_CFI_32BIT:
+ retval = ((flash_read32(addr) & cword.l) == cword.l);
+ break;
+ case FLASH_CFI_64BIT:
+ retval = ((flash_read64(addr) & cword.ll) == cword.ll);
+ break;
+ default:
+ retval = 0;
+ break;
+ }
+ flash_unmap(info, sect, offset, addr);
+
+ return retval;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static int flash_toggle (flash_info_t * info, flash_sect_t sect,
+ uint offset, uchar cmd)
+{
+ void *addr;
+ cfiword_t cword;
+ int retval;
+
+ addr = flash_map (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ retval = flash_read8(addr) != flash_read8(addr);
+ break;
+ case FLASH_CFI_16BIT:
+ retval = flash_read16(addr) != flash_read16(addr);
+ break;
+ case FLASH_CFI_32BIT:
+ retval = flash_read32(addr) != flash_read32(addr);
+ break;
+ case FLASH_CFI_64BIT:
+ retval = flash_read64(addr) != flash_read64(addr);
+ break;
+ default:
+ retval = 0;
+ break;
+ }
+ flash_unmap(info, sect, offset, addr);
+
+ return retval;
+}
+
+/*
+ * flash_is_busy - check to see if the flash is busy
+ *
+ * This routine checks the status of the chip and returns true if the
+ * chip is busy.
+ */
+static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
+{
+ int retval;
+
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ case CFI_CMDSET_INTEL_STANDARD:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
+ break;
+ case CFI_CMDSET_AMD_STANDARD:
+ case CFI_CMDSET_AMD_EXTENDED:
+#ifdef CONFIG_FLASH_CFI_LEGACY
+ case CFI_CMDSET_AMD_LEGACY:
+#endif
+ retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE);
+ break;
+ default:
+ retval = 0;
+ }
+ debug ("flash_is_busy: %d\n", retval);
+ return retval;
+}
+
+/*-----------------------------------------------------------------------
+ * wait for XSR.7 to be set. Time out with an error if it does not.
+ * This routine does not set the flash to read-array mode.
+ */
+static int flash_status_check (flash_info_t * info, flash_sect_t sector,
+ ulong tout, char *prompt)
+{
+ ulong start;
+
+#if CFG_HZ != 1000
+ tout *= CFG_HZ/1000;
+#endif
+
+ /* Wait for command completion */
+ start = get_timer (0);
+ while (flash_is_busy (info, sector)) {
+ if (get_timer (start) > tout) {
+ printf ("Flash %s timeout at address %lx data %lx\n",
+ prompt, info->start[sector],
+ flash_read_long (info, sector, 0));
+ flash_write_cmd (info, sector, 0, info->cmd_reset);
+ return ERR_TIMOUT;
+ }
+ udelay (1); /* also triggers watchdog */
+ }
+ return ERR_OK;
+}
+
+/*-----------------------------------------------------------------------
+ * Wait for XSR.7 to be set, if it times out print an error, otherwise
+ * do a full status check.
+ *
+ * This routine sets the flash to read-array mode.
+ */
+static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
+ ulong tout, char *prompt)
+{
+ int retcode;
+
+ retcode = flash_status_check (info, sector, tout, prompt);
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ case CFI_CMDSET_INTEL_STANDARD:
+ if ((retcode == ERR_OK)
+ && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) {
+ retcode = ERR_INVAL;
+ printf ("Flash %s error at address %lx\n", prompt,
+ info->start[sector]);
+ if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS |
+ FLASH_STATUS_PSLBS)) {
+ puts ("Command Sequence Error.\n");
+ } else if (flash_isset (info, sector, 0,
+ FLASH_STATUS_ECLBS)) {
+ puts ("Block Erase Error.\n");
+ retcode = ERR_NOT_ERASED;
+ } else if (flash_isset (info, sector, 0,
+ FLASH_STATUS_PSLBS)) {
+ puts ("Locking Error\n");
+ }
+ if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
+ puts ("Block locked.\n");
+ retcode = ERR_PROTECTED;
}
+ if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
+ puts ("Vpp Low Error.\n");
}
-#endif /* CFG_FLASH_PROTECTION */
+ flash_write_cmd (info, sector, 0, info->cmd_reset);
+ break;
+ default:
+ break;
}
+ return retcode;
+}
- /* Monitor protection ON by default */
-#if (CFG_MONITOR_BASE >= CFG_FLASH_BASE)
- flash_protect (FLAG_PROTECT_SET,
- CFG_MONITOR_BASE,
- CFG_MONITOR_BASE + monitor_flash_len - 1,
- flash_get_info(CFG_MONITOR_BASE));
+/*-----------------------------------------------------------------------
+ */
+static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
+{
+#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
+ unsigned short w;
+ unsigned int l;
+ unsigned long long ll;
#endif
- /* Environment protection ON by default */
-#ifdef CFG_ENV_IS_IN_FLASH
- flash_protect (FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
- flash_get_info(CFG_ENV_ADDR));
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ cword->c = c;
+ break;
+ case FLASH_CFI_16BIT:
+#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
+ w = c;
+ w <<= 8;
+ cword->w = (cword->w >> 8) | w;
+#else
+ cword->w = (cword->w << 8) | c;
+#endif
+ break;
+ case FLASH_CFI_32BIT:
+#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
+ l = c;
+ l <<= 24;
+ cword->l = (cword->l >> 8) | l;
+#else
+ cword->l = (cword->l << 8) | c;
#endif
+ break;
+ case FLASH_CFI_64BIT:
+#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
+ ll = c;
+ ll <<= 56;
+ cword->ll = (cword->ll >> 8) | ll;
+#else
+ cword->ll = (cword->ll << 8) | c;
+#endif
+ break;
+ }
+}
- /* Redundant environment protection ON by default */
-#ifdef CFG_ENV_ADDR_REDUND
- flash_protect (FLAG_PROTECT_SET,
- CFG_ENV_ADDR_REDUND,
- CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
- flash_get_info(CFG_ENV_ADDR_REDUND));
+/* loop through the sectors from the highest address when the passed
+ * address is greater or equal to the sector address we have a match
+ */
+static flash_sect_t find_sector (flash_info_t * info, ulong addr)
+{
+ flash_sect_t sector;
+
+ for (sector = info->sector_count - 1; sector >= 0; sector--) {
+ if (addr >= info->start[sector])
+ break;
+ }
+ return sector;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static int flash_write_cfiword (flash_info_t * info, ulong dest,
+ cfiword_t cword)
+{
+ void *dstaddr;
+ int flag;
+
+ dstaddr = map_physmem(dest, info->portwidth, MAP_NOCACHE);
+
+ /* Check if Flash is (sufficiently) erased */
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ flag = ((flash_read8(dstaddr) & cword.c) == cword.c);
+ break;
+ case FLASH_CFI_16BIT:
+ flag = ((flash_read16(dstaddr) & cword.w) == cword.w);
+ break;
+ case FLASH_CFI_32BIT:
+ flag = ((flash_read32(dstaddr) & cword.l) == cword.l);
+ break;
+ case FLASH_CFI_64BIT:
+ flag = ((flash_read64(dstaddr) & cword.ll) == cword.ll);
+ break;
+ default:
+ flag = 0;
+ break;
+ }
+ if (!flag) {
+ unmap_physmem(dstaddr, info->portwidth);
+ return ERR_NOT_ERASED;
+ }
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
+
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ case CFI_CMDSET_INTEL_STANDARD:
+ flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
+ break;
+ case CFI_CMDSET_AMD_EXTENDED:
+ case CFI_CMDSET_AMD_STANDARD:
+#ifdef CONFIG_FLASH_CFI_LEGACY
+ case CFI_CMDSET_AMD_LEGACY:
#endif
- return (size);
+ flash_unlock_seq (info, 0);
+ flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE);
+ break;
+ }
+
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ flash_write8(cword.c, dstaddr);
+ break;
+ case FLASH_CFI_16BIT:
+ flash_write16(cword.w, dstaddr);
+ break;
+ case FLASH_CFI_32BIT:
+ flash_write32(cword.l, dstaddr);
+ break;
+ case FLASH_CFI_64BIT:
+ flash_write64(cword.ll, dstaddr);
+ break;
+ }
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts ();
+
+ unmap_physmem(dstaddr, info->portwidth);
+
+ return flash_full_status_check (info, find_sector (info, dest),
+ info->write_tout, "write");
}
-/*-----------------------------------------------------------------------
- */
-#if defined(CFG_ENV_IS_IN_FLASH) || defined(CFG_ENV_ADDR_REDUND) || (CFG_MONITOR_BASE >= CFG_FLASH_BASE)
-static flash_info_t *flash_get_info(ulong base)
-{
- int i;
- flash_info_t * info = 0;
+#ifdef CFG_FLASH_USE_BUFFER_WRITE
+
+static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
+ int len)
+{
+ flash_sect_t sector;
+ int cnt;
+ int retcode;
+ void *src = cp;
+ void *dst = map_physmem(dest, len, MAP_NOCACHE);
+ void *dst2 = dst;
+ int flag = 0;
+ uint offset = 0;
+ unsigned int shift;
+ uchar write_cmd;
+
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ shift = 0;
+ break;
+ case FLASH_CFI_16BIT:
+ shift = 1;
+ break;
+ case FLASH_CFI_32BIT:
+ shift = 2;
+ break;
+ case FLASH_CFI_64BIT:
+ shift = 3;
+ break;
+ default:
+ retcode = ERR_INVAL;
+ goto out_unmap;
+ }
+
+ cnt = len >> shift;
+
+ while ((cnt-- > 0) && (flag == 0)) {
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ flag = ((flash_read8(dst2) & flash_read8(src)) ==
+ flash_read8(src));
+ src += 1, dst2 += 1;
+ break;
+ case FLASH_CFI_16BIT:
+ flag = ((flash_read16(dst2) & flash_read16(src)) ==
+ flash_read16(src));
+ src += 2, dst2 += 2;
+ break;
+ case FLASH_CFI_32BIT:
+ flag = ((flash_read32(dst2) & flash_read32(src)) ==
+ flash_read32(src));
+ src += 4, dst2 += 4;
+ break;
+ case FLASH_CFI_64BIT:
+ flag = ((flash_read64(dst2) & flash_read64(src)) ==
+ flash_read64(src));
+ src += 8, dst2 += 8;
+ break;
+ }
+ }
+ if (!flag) {
+ retcode = ERR_NOT_ERASED;
+ goto out_unmap;
+ }
+
+ src = cp;
+ sector = find_sector (info, dest);
+
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ case CFI_CMDSET_INTEL_STANDARD:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ?
+ FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER;
+ flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS);
+ flash_write_cmd (info, sector, 0, write_cmd);
+ retcode = flash_status_check (info, sector,
+ info->buffer_write_tout,
+ "write to buffer");
+ if (retcode == ERR_OK) {
+ /* reduce the number of loops by the width of
+ * the port */
+ cnt = len >> shift;
+ flash_write_cmd (info, sector, 0, cnt - 1);
+ while (cnt-- > 0) {
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ flash_write8(flash_read8(src), dst);
+ src += 1, dst += 1;
+ break;
+ case FLASH_CFI_16BIT:
+ flash_write16(flash_read16(src), dst);
+ src += 2, dst += 2;
+ break;
+ case FLASH_CFI_32BIT:
+ flash_write32(flash_read32(src), dst);
+ src += 4, dst += 4;
+ break;
+ case FLASH_CFI_64BIT:
+ flash_write64(flash_read64(src), dst);
+ src += 8, dst += 8;
+ break;
+ default:
+ retcode = ERR_INVAL;
+ goto out_unmap;
+ }
+ }
+ flash_write_cmd (info, sector, 0,
+ FLASH_CMD_WRITE_BUFFER_CONFIRM);
+ retcode = flash_full_status_check (
+ info, sector, info->buffer_write_tout,
+ "buffer write");
+ }
+
+ break;
+
+ case CFI_CMDSET_AMD_STANDARD:
+ case CFI_CMDSET_AMD_EXTENDED:
+ flash_unlock_seq(info,0);
+
+#ifdef CONFIG_FLASH_SPANSION_S29WS_N
+ offset = ((unsigned long)dst - info->start[sector]) >> shift;
+#endif
+ flash_write_cmd(info, sector, offset, AMD_CMD_WRITE_TO_BUFFER);
+ cnt = len >> shift;
+ flash_write_cmd(info, sector, offset, (uchar)cnt - 1);
+
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ while (cnt-- > 0) {
+ flash_write8(flash_read8(src), dst);
+ src += 1, dst += 1;
+ }
+ break;
+ case FLASH_CFI_16BIT:
+ while (cnt-- > 0) {
+ flash_write16(flash_read16(src), dst);
+ src += 2, dst += 2;
+ }
+ break;
+ case FLASH_CFI_32BIT:
+ while (cnt-- > 0) {
+ flash_write32(flash_read32(src), dst);
+ src += 4, dst += 4;
+ }
+ break;
+ case FLASH_CFI_64BIT:
+ while (cnt-- > 0) {
+ flash_write64(flash_read64(src), dst);
+ src += 8, dst += 8;
+ }
+ break;
+ default:
+ retcode = ERR_INVAL;
+ goto out_unmap;
+ }
+
+ flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
+ retcode = flash_full_status_check (info, sector,
+ info->buffer_write_tout,
+ "buffer write");
+ break;
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
- info = & flash_info[i];
- if (info->size && info->start[0] <= base &&
- base <= info->start[0] + info->size - 1)
- break;
+ default:
+ debug ("Unknown Command Set\n");
+ retcode = ERR_INVAL;
+ break;
}
- return i == CFG_MAX_FLASH_BANKS ? 0 : info;
+out_unmap:
+ unmap_physmem(dst, len);
+ return retcode;
}
-#endif
+#endif /* CFG_FLASH_USE_BUFFER_WRITE */
+
/*-----------------------------------------------------------------------
*/
for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
case CFI_CMDSET_INTEL_STANDARD:
case CFI_CMDSET_INTEL_EXTENDED:
flash_write_cmd (info, sect, 0,
info->size >> 20, info->sector_count);
printf (" ");
switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ printf ("Intel Prog Regions");
+ break;
case CFI_CMDSET_INTEL_STANDARD:
printf ("Intel Standard");
break;
/*
* 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];
+ size = flash_sector_size(info, i);
erased = 1;
flash = (volatile unsigned long *) info->start[i];
size = size >> 2; /* divide by 4 for longword access */
}
/*-----------------------------------------------------------------------
+ * This is used in a few places in write_buf() to show programming
+ * progress. Making it a function is nasty because it needs to do side
+ * effect updates to digit and dots. Repeated code is nasty too, so
+ * we define it once here.
+ */
+#ifdef CONFIG_FLASH_SHOW_PROGRESS
+#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub) \
+ dots -= dots_sub; \
+ if ((scale > 0) && (dots <= 0)) { \
+ if ((digit % 5) == 0) \
+ printf ("%d", digit / 5); \
+ else \
+ putc ('.'); \
+ digit--; \
+ dots += scale; \
+ }
+#else
+#define FLASH_SHOW_PROGRESS(scale, dots, digit, dots_sub)
+#endif
+
+/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
ulong wp;
- ulong cp;
+ uchar *p;
int aln;
cfiword_t cword;
int i, rc;
-
#ifdef CFG_FLASH_USE_BUFFER_WRITE
int buffered_size;
#endif
- /* get lower aligned address */
+#ifdef CONFIG_FLASH_SHOW_PROGRESS
+ int digit = CONFIG_FLASH_SHOW_PROGRESS;
+ int scale = 0;
+ int dots = 0;
+
+ /*
+ * Suppress if there are fewer than CONFIG_FLASH_SHOW_PROGRESS writes.
+ */
+ if (cnt >= CONFIG_FLASH_SHOW_PROGRESS) {
+ scale = (int)((cnt + CONFIG_FLASH_SHOW_PROGRESS - 1) /
+ CONFIG_FLASH_SHOW_PROGRESS);
+ }
+#endif
+
/* get lower aligned address */
wp = (addr & ~(info->portwidth - 1));
/* handle unaligned start */
if ((aln = addr - wp) != 0) {
cword.l = 0;
- cp = wp;
- for (i = 0; i < aln; ++i, ++cp)
- flash_add_byte (info, &cword, (*(uchar *) cp));
+ p = map_physmem(wp, info->portwidth, MAP_NOCACHE);
+ for (i = 0; i < aln; ++i)
+ flash_add_byte (info, &cword, flash_read8(p + i));
for (; (i < info->portwidth) && (cnt > 0); i++) {
flash_add_byte (info, &cword, *src++);
cnt--;
- cp++;
}
- for (; (cnt == 0) && (i < info->portwidth); ++i, ++cp)
- flash_add_byte (info, &cword, (*(uchar *) cp));
- if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
+ for (; (cnt == 0) && (i < info->portwidth); ++i)
+ flash_add_byte (info, &cword, flash_read8(p + i));
+
+ rc = flash_write_cfiword (info, wp, cword);
+ unmap_physmem(p, info->portwidth);
+ if (rc != 0)
return rc;
- wp = cp;
+
+ wp += i;
+ FLASH_SHOW_PROGRESS(scale, dots, digit, i);
}
/* handle the aligned part */
wp += i;
src += i;
cnt -= i;
+ FLASH_SHOW_PROGRESS(scale, dots, digit, i);
}
#else
while (cnt >= info->portwidth) {
return rc;
wp += info->portwidth;
cnt -= info->portwidth;
+ FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth);
}
#endif /* CFG_FLASH_USE_BUFFER_WRITE */
+
if (cnt == 0) {
return (0);
}
* handle unaligned tail bytes
*/
cword.l = 0;
- for (i = 0, cp = wp; (i < info->portwidth) && (cnt > 0); ++i, ++cp) {
+ p = map_physmem(wp, info->portwidth, MAP_NOCACHE);
+ for (i = 0; (i < info->portwidth) && (cnt > 0); ++i) {
flash_add_byte (info, &cword, *src++);
--cnt;
}
- for (; i < info->portwidth; ++i, ++cp) {
- flash_add_byte (info, &cword, (*(uchar *) cp));
- }
+ for (; i < info->portwidth; ++i)
+ flash_add_byte (info, &cword, flash_read8(p + i));
+ unmap_physmem(p, info->portwidth);
return flash_write_cfiword (info, wp, cword);
}
{
int retcode = 0;
- flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
- if (prot)
- flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
- else
- flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
-
- if ((retcode =
- flash_full_status_check (info, sector, info->erase_blk_tout,
- prot ? "protect" : "unprotect")) == 0) {
-
- info->protect[sector] = prot;
-
- /*
- * On some of Intel's flash chips (marked via legacy_unlock)
- * unprotect unprotects all locking.
- */
- if ((prot == 0) && (info->legacy_unlock)) {
- flash_sect_t i;
-
- for (i = 0; i < info->sector_count; i++) {
- if (info->protect[i])
- flash_real_protect (info, i, 1);
- }
- }
- }
- return retcode;
-}
-
-/*-----------------------------------------------------------------------
- * flash_read_user_serial - read the OneTimeProgramming cells
- */
-void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
- int len)
-{
- uchar *src;
- uchar *dst;
-
- dst = buffer;
- src = flash_make_addr (info, 0, FLASH_OFFSET_USER_PROTECTION);
- flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
- memcpy (dst, src + offset, len);
- flash_write_cmd (info, 0, 0, info->cmd_reset);
-}
-
-/*
- * flash_read_factory_serial - read the device Id from the protection area
- */
-void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
- int len)
-{
- uchar *src;
-
- src = flash_make_addr (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
- flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
- memcpy (buffer, src + offset, len);
- flash_write_cmd (info, 0, 0, info->cmd_reset);
-}
-
-#endif /* CFG_FLASH_PROTECTION */
-
-/*
- * flash_is_busy - check to see if the flash is busy
- *
- * This routine checks the status of the chip and returns true if the
- * chip is busy.
- */
-static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
-{
- int retval;
-
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
- break;
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
-#ifdef CONFIG_FLASH_CFI_LEGACY
- case CFI_CMDSET_AMD_LEGACY:
-#endif
- retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE);
- break;
- default:
- retval = 0;
- }
- debug ("flash_is_busy: %d\n", retval);
- return retval;
-}
-
-/*-----------------------------------------------------------------------
- * wait for XSR.7 to be set. Time out with an error if it does not.
- * This routine does not set the flash to read-array mode.
- */
-static int flash_status_check (flash_info_t * info, flash_sect_t sector,
- ulong tout, char *prompt)
-{
- ulong start;
-
-#if CFG_HZ != 1000
- tout *= CFG_HZ/1000;
-#endif
-
- /* Wait for command completion */
- start = get_timer (0);
- while (flash_is_busy (info, sector)) {
- if (get_timer (start) > tout) {
- printf ("Flash %s timeout at address %lx data %lx\n",
- prompt, info->start[sector],
- flash_read_long (info, sector, 0));
- flash_write_cmd (info, sector, 0, info->cmd_reset);
- return ERR_TIMOUT;
- }
- udelay (1); /* also triggers watchdog */
- }
- return ERR_OK;
-}
-
-/*-----------------------------------------------------------------------
- * Wait for XSR.7 to be set, if it times out print an error, otherwise
- * do a full status check.
- *
- * This routine sets the flash to read-array mode.
- */
-static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
- ulong tout, char *prompt)
-{
- int retcode;
-
- retcode = flash_status_check (info, sector, tout, prompt);
switch (info->vendor) {
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- if ((retcode == ERR_OK)
- && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) {
- retcode = ERR_INVAL;
- printf ("Flash %s error at address %lx\n", prompt,
- info->start[sector]);
- if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS |
- FLASH_STATUS_PSLBS)) {
- puts ("Command Sequence Error.\n");
- } else if (flash_isset (info, sector, 0,
- FLASH_STATUS_ECLBS)) {
- puts ("Block Erase Error.\n");
- retcode = ERR_NOT_ERASED;
- } else if (flash_isset (info, sector, 0,
- FLASH_STATUS_PSLBS)) {
- puts ("Locking Error\n");
- }
- if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
- puts ("Block locked.\n");
- retcode = ERR_PROTECTED;
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ case CFI_CMDSET_INTEL_STANDARD:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ flash_write_cmd (info, sector, 0,
+ FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
+ if (prot)
+ flash_write_cmd (info, sector, 0,
+ FLASH_CMD_PROTECT_SET);
+ else
+ flash_write_cmd (info, sector, 0,
+ FLASH_CMD_PROTECT_CLEAR);
+ break;
+ case CFI_CMDSET_AMD_EXTENDED:
+ case CFI_CMDSET_AMD_STANDARD:
+ /* U-Boot only checks the first byte */
+ if (info->manufacturer_id == (uchar)ATM_MANUFACT) {
+ if (prot) {
+ flash_unlock_seq (info, 0);
+ flash_write_cmd (info, 0,
+ info->addr_unlock1,
+ ATM_CMD_SOFTLOCK_START);
+ flash_unlock_seq (info, 0);
+ flash_write_cmd (info, sector, 0,
+ ATM_CMD_LOCK_SECT);
+ } else {
+ flash_write_cmd (info, 0,
+ info->addr_unlock1,
+ AMD_CMD_UNLOCK_START);
+ if (info->device_id == ATM_ID_BV6416)
+ flash_write_cmd (info, sector,
+ 0, ATM_CMD_UNLOCK_SECT);
+ }
}
- if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
- puts ("Vpp Low Error.\n");
- }
- flash_write_cmd (info, sector, 0, info->cmd_reset);
- break;
- default:
- break;
- }
- return retcode;
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
-{
-#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
- unsigned short w;
- unsigned int l;
- unsigned long long ll;
-#endif
-
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- cword->c = c;
- break;
- case FLASH_CFI_16BIT:
-#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
- w = c;
- w <<= 8;
- cword->w = (cword->w >> 8) | w;
-#else
- cword->w = (cword->w << 8) | c;
-#endif
- break;
- case FLASH_CFI_32BIT:
-#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
- l = c;
- l <<= 24;
- cword->l = (cword->l >> 8) | l;
-#else
- cword->l = (cword->l << 8) | c;
-#endif
- break;
- case FLASH_CFI_64BIT:
-#if defined(__LITTLE_ENDIAN) && !defined(CFG_WRITE_SWAPPED_DATA)
- ll = c;
- ll <<= 56;
- cword->ll = (cword->ll >> 8) | ll;
-#else
- cword->ll = (cword->ll << 8) | c;
+ break;
+#ifdef CONFIG_FLASH_CFI_LEGACY
+ case CFI_CMDSET_AMD_LEGACY:
+ flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
+ if (prot)
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
+ else
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
#endif
- break;
+ };
+
+ if ((retcode =
+ flash_full_status_check (info, sector, info->erase_blk_tout,
+ prot ? "protect" : "unprotect")) == 0) {
+
+ info->protect[sector] = prot;
+
+ /*
+ * On some of Intel's flash chips (marked via legacy_unlock)
+ * unprotect unprotects all locking.
+ */
+ if ((prot == 0) && (info->legacy_unlock)) {
+ flash_sect_t i;
+
+ for (i = 0; i < info->sector_count; i++) {
+ if (info->protect[i])
+ flash_real_protect (info, i, 1);
+ }
+ }
}
+ return retcode;
}
-
/*-----------------------------------------------------------------------
- * make a proper sized command based on the port and chip widths
+ * flash_read_user_serial - read the OneTimeProgramming cells
*/
-static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf)
+void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
+ int len)
{
- int i;
- uchar *cp = (uchar *) cmdbuf;
+ uchar *src;
+ uchar *dst;
-#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
- for (i = info->portwidth; i > 0; i--)
-#else
- for (i = 1; i <= info->portwidth; i++)
-#endif
- *cp++ = (i & (info->chipwidth - 1)) ? '\0' : cmd;
+ dst = buffer;
+ src = flash_map (info, 0, FLASH_OFFSET_USER_PROTECTION);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
+ memcpy (dst, src + offset, len);
+ flash_write_cmd (info, 0, 0, info->cmd_reset);
+ flash_unmap(info, 0, FLASH_OFFSET_USER_PROTECTION, src);
}
/*
- * Write a proper sized command to the correct address
+ * flash_read_factory_serial - read the device Id from the protection area
*/
-static void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd)
+void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
+ int len)
{
+ uchar *src;
- volatile cfiptr_t addr;
- cfiword_t cword;
+ src = flash_map (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
+ memcpy (buffer, src + offset, len);
+ flash_write_cmd (info, 0, 0, info->cmd_reset);
+ flash_unmap(info, 0, FLASH_OFFSET_INTEL_PROTECTION, src);
+}
- addr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr.cp, cmd,
- cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- *addr.cp = cword.c;
- break;
- case FLASH_CFI_16BIT:
- debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr.wp,
- cmd, cword.w,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- *addr.wp = cword.w;
- break;
- case FLASH_CFI_32BIT:
- debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr.lp,
- cmd, cword.l,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- *addr.lp = cword.l;
- break;
- case FLASH_CFI_64BIT:
-#ifdef DEBUG
- {
- char str[20];
+#endif /* CFG_FLASH_PROTECTION */
- print_longlong (str, cword.ll);
+/*-----------------------------------------------------------------------
+ * Reverse the order of the erase regions in the CFI QRY structure.
+ * This is needed for chips that are either a) correctly detected as
+ * top-boot, or b) buggy.
+ */
+static void cfi_reverse_geometry(struct cfi_qry *qry)
+{
+ unsigned int i, j;
+ u32 tmp;
- debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
- addr.llp, cmd, str,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- }
-#endif
- *addr.llp = cword.ll;
- break;
+ for (i = 0, j = qry->num_erase_regions - 1; i < j; i++, j--) {
+ tmp = qry->erase_region_info[i];
+ qry->erase_region_info[i] = qry->erase_region_info[j];
+ qry->erase_region_info[j] = tmp;
}
-
- /* Ensure all the instructions are fully finished */
- sync();
-}
-
-static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
-{
- flash_write_cmd (info, sect, info->addr_unlock1, AMD_CMD_UNLOCK_START);
- flash_write_cmd (info, sect, info->addr_unlock2, AMD_CMD_UNLOCK_ACK);
}
/*-----------------------------------------------------------------------
+ * read jedec ids from device and set corresponding fields in info struct
+ *
+ * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct
+ *
*/
-static int flash_isequal (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd)
+static void cmdset_intel_read_jedec_ids(flash_info_t *info)
{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
+ flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+ flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
+ udelay(1000); /* some flash are slow to respond */
+ info->manufacturer_id = flash_read_uchar (info,
+ FLASH_OFFSET_MANUFACTURER_ID);
+ info->device_id = flash_read_uchar (info,
+ FLASH_OFFSET_DEVICE_ID);
+ flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+}
- cptr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
+static int cmdset_intel_init(flash_info_t *info, struct cfi_qry *qry)
+{
+ info->cmd_reset = FLASH_CMD_RESET;
- debug ("is= cmd %x(%c) addr %p ", cmd, cmd, cptr.cp);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- debug ("is= %x %x\n", cptr.cp[0], cword.c);
- retval = (cptr.cp[0] == cword.c);
- break;
- case FLASH_CFI_16BIT:
- debug ("is= %4.4x %4.4x\n", cptr.wp[0], cword.w);
- retval = (cptr.wp[0] == cword.w);
- break;
- case FLASH_CFI_32BIT:
- debug ("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l);
- retval = (cptr.lp[0] == cword.l);
- break;
- case FLASH_CFI_64BIT:
-#ifdef DEBUG
- {
- char str1[20];
- char str2[20];
+ cmdset_intel_read_jedec_ids(info);
+ flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
- print_longlong (str1, cptr.llp[0]);
- print_longlong (str2, cword.ll);
- debug ("is= %s %s\n", str1, str2);
- }
-#endif
- retval = (cptr.llp[0] == cword.ll);
- break;
- default:
- retval = 0;
- break;
+#ifdef CFG_FLASH_PROTECTION
+ /* read legacy lock/unlock bit from intel flash */
+ if (info->ext_addr) {
+ info->legacy_unlock = flash_read_uchar (info,
+ info->ext_addr + 5) & 0x08;
}
- return retval;
+#endif
+
+ return 0;
}
-/*-----------------------------------------------------------------------
- */
-static int flash_isset (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd)
+static void cmdset_amd_read_jedec_ids(flash_info_t *info)
{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
+ flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
+ flash_unlock_seq(info, 0);
+ flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
+ udelay(1000); /* some flash are slow to respond */
- cptr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
- switch (info->portwidth) {
+ info->manufacturer_id = flash_read_uchar (info,
+ FLASH_OFFSET_MANUFACTURER_ID);
+
+ switch (info->chipwidth){
case FLASH_CFI_8BIT:
- retval = ((cptr.cp[0] & cword.c) == cword.c);
+ info->device_id = flash_read_uchar (info,
+ FLASH_OFFSET_DEVICE_ID);
+ if (info->device_id == 0x7E) {
+ /* AMD 3-byte (expanded) device ids */
+ info->device_id2 = flash_read_uchar (info,
+ FLASH_OFFSET_DEVICE_ID2);
+ info->device_id2 <<= 8;
+ info->device_id2 |= flash_read_uchar (info,
+ FLASH_OFFSET_DEVICE_ID3);
+ }
break;
case FLASH_CFI_16BIT:
- retval = ((cptr.wp[0] & cword.w) == cword.w);
- break;
- case FLASH_CFI_32BIT:
- retval = ((cptr.lp[0] & cword.l) == cword.l);
- break;
- case FLASH_CFI_64BIT:
- retval = ((cptr.llp[0] & cword.ll) == cword.ll);
+ info->device_id = flash_read_word (info,
+ FLASH_OFFSET_DEVICE_ID);
break;
default:
- retval = 0;
break;
}
- return retval;
+ flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
}
-/*-----------------------------------------------------------------------
- */
-static int flash_toggle (flash_info_t * info, flash_sect_t sect,
- uint offset, uchar cmd)
+static int cmdset_amd_init(flash_info_t *info, struct cfi_qry *qry)
{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
+ info->cmd_reset = AMD_CMD_RESET;
- cptr.cp = flash_make_addr (info, sect, offset);
- flash_make_cmd (info, cmd, &cword);
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- retval = ((cptr.cp[0] & cword.c) != (cptr.cp[0] & cword.c));
- break;
- case FLASH_CFI_16BIT:
- retval = ((cptr.wp[0] & cword.w) != (cptr.wp[0] & cword.w));
- break;
- case FLASH_CFI_32BIT:
- retval = ((cptr.lp[0] & cword.l) != (cptr.lp[0] & cword.l));
- break;
- case FLASH_CFI_64BIT:
- retval = ((cptr.llp[0] & cword.ll) !=
- (cptr.llp[0] & cword.ll));
- break;
- default:
- retval = 0;
- break;
- }
- return retval;
+ cmdset_amd_read_jedec_ids(info);
+ flash_write_cmd(info, 0, info->cfi_offset, FLASH_CMD_CFI);
+
+ return 0;
}
-/*-----------------------------------------------------------------------
- * read jedec ids from device and set corresponding fields in info struct
- *
- * Note: assume cfi->vendor, cfi->portwidth and cfi->chipwidth are correct
- *
-*/
+#ifdef CONFIG_FLASH_CFI_LEGACY
static void flash_read_jedec_ids (flash_info_t * info)
{
info->manufacturer_id = 0;
info->device_id2 = 0;
switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
case CFI_CMDSET_INTEL_STANDARD:
case CFI_CMDSET_INTEL_EXTENDED:
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
- flash_write_cmd(info, 0, 0, FLASH_CMD_READ_ID);
- udelay(1000); /* some flash are slow to respond */
- info->manufacturer_id = flash_read_uchar (info,
- FLASH_OFFSET_MANUFACTURER_ID);
- info->device_id = flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID);
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+ cmdset_intel_read_jedec_ids(info);
break;
case CFI_CMDSET_AMD_STANDARD:
case CFI_CMDSET_AMD_EXTENDED:
- flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
- flash_unlock_seq(info, 0);
- flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
- udelay(1000); /* some flash are slow to respond */
- info->manufacturer_id = flash_read_uchar (info,
- FLASH_OFFSET_MANUFACTURER_ID);
- info->device_id = flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID);
- if (info->device_id == 0x7E) {
- /* AMD 3-byte (expanded) device ids */
- info->device_id2 = flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID2);
- info->device_id2 <<= 8;
- info->device_id2 |= flash_read_uchar (info,
- FLASH_OFFSET_DEVICE_ID3);
- }
- flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
+ cmdset_amd_read_jedec_ids(info);
break;
default:
break;
}
/*-----------------------------------------------------------------------
+ * Call board code to request info about non-CFI flash.
+ * board_flash_get_legacy needs to fill in at least:
+ * info->portwidth, info->chipwidth and info->interface for Jedec probing.
+ */
+static int flash_detect_legacy(ulong base, int banknum)
+{
+ flash_info_t *info = &flash_info[banknum];
+
+ if (board_flash_get_legacy(base, banknum, info)) {
+ /* board code may have filled info completely. If not, we
+ use JEDEC ID probing. */
+ if (!info->vendor) {
+ int modes[] = {
+ CFI_CMDSET_AMD_STANDARD,
+ CFI_CMDSET_INTEL_STANDARD
+ };
+ int i;
+
+ for (i = 0; i < sizeof(modes) / sizeof(modes[0]); i++) {
+ info->vendor = modes[i];
+ info->start[0] = base;
+ if (info->portwidth == FLASH_CFI_8BIT
+ && info->interface == FLASH_CFI_X8X16) {
+ info->addr_unlock1 = 0x2AAA;
+ info->addr_unlock2 = 0x5555;
+ } else {
+ info->addr_unlock1 = 0x5555;
+ info->addr_unlock2 = 0x2AAA;
+ }
+ flash_read_jedec_ids(info);
+ debug("JEDEC PROBE: ID %x %x %x\n",
+ info->manufacturer_id,
+ info->device_id,
+ info->device_id2);
+ if (jedec_flash_match(info, base))
+ break;
+ }
+ }
+
+ switch(info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
+ case CFI_CMDSET_INTEL_STANDARD:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ info->cmd_reset = FLASH_CMD_RESET;
+ break;
+ case CFI_CMDSET_AMD_STANDARD:
+ case CFI_CMDSET_AMD_EXTENDED:
+ case CFI_CMDSET_AMD_LEGACY:
+ info->cmd_reset = AMD_CMD_RESET;
+ break;
+ }
+ info->flash_id = FLASH_MAN_CFI;
+ return 1;
+ }
+ return 0; /* use CFI */
+}
+#else
+static inline int flash_detect_legacy(ulong base, int banknum)
+{
+ return 0; /* use CFI */
+}
+#endif
+
+/*-----------------------------------------------------------------------
* detect if flash is compatible with the Common Flash Interface (CFI)
* http://www.jedec.org/download/search/jesd68.pdf
*/
-static int __flash_detect_cfi (flash_info_t * info)
+static void flash_read_cfi (flash_info_t *info, void *buf,
+ unsigned int start, size_t len)
+{
+ u8 *p = buf;
+ unsigned int i;
+
+ for (i = 0; i < len; i++)
+ p[i] = flash_read_uchar(info, start + i);
+}
+
+static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
{
int cfi_offset;
- flash_write_cmd (info, 0, 0, info->cmd_reset);
+ /* We do not yet know what kind of commandset to use, so we issue
+ the reset command in both Intel and AMD variants, in the hope
+ that AMD flash roms ignore the Intel command. */
+ flash_write_cmd (info, 0, 0, AMD_CMD_RESET);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_RESET);
+
for (cfi_offset=0;
cfi_offset < sizeof(flash_offset_cfi) / sizeof(uint);
cfi_offset++) {
if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
&& flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
&& flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
- info->interface = flash_read_ushort (info, 0,
- FLASH_OFFSET_INTERFACE);
+ flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP,
+ sizeof(struct cfi_qry));
+ info->interface = le16_to_cpu(qry->interface_desc);
+
info->cfi_offset = flash_offset_cfi[cfi_offset];
debug ("device interface is %d\n",
info->interface);
return 0;
}
-static int flash_detect_cfi (flash_info_t * info)
+static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
{
debug ("flash detect cfi\n");
for (info->chipwidth = FLASH_CFI_BY8;
info->chipwidth <= info->portwidth;
info->chipwidth <<= 1)
- if (__flash_detect_cfi(info))
+ if (__flash_detect_cfi(info, qry))
return 1;
}
debug ("not found\n");
}
/*
+ * Manufacturer-specific quirks. Add workarounds for geometry
+ * reversal, etc. here.
+ */
+static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry)
+{
+ /* check if flash geometry needs reversal */
+ if (qry->num_erase_regions > 1) {
+ /* reverse geometry if top boot part */
+ if (info->cfi_version < 0x3131) {
+ /* CFI < 1.1, try to guess from device id */
+ if ((info->device_id & 0x80) != 0)
+ cfi_reverse_geometry(qry);
+ } else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
+ /* CFI >= 1.1, deduct from top/bottom flag */
+ /* note: ext_addr is valid since cfi_version > 0 */
+ cfi_reverse_geometry(qry);
+ }
+ }
+}
+
+static void flash_fixup_atmel(flash_info_t *info, struct cfi_qry *qry)
+{
+ int reverse_geometry = 0;
+
+ /* Check the "top boot" bit in the PRI */
+ if (info->ext_addr && !(flash_read_uchar(info, info->ext_addr + 6) & 1))
+ reverse_geometry = 1;
+
+ /* AT49BV6416(T) list the erase regions in the wrong order.
+ * However, the device ID is identical with the non-broken
+ * AT49BV642D since u-boot only reads the low byte (they
+ * differ in the high byte.) So leave out this fixup for now.
+ */
+#if 0
+ if (info->device_id == 0xd6 || info->device_id == 0xd2)
+ reverse_geometry = !reverse_geometry;
+#endif
+
+ if (reverse_geometry)
+ cfi_reverse_geometry(qry);
+}
+
+/*
* The following code cannot be run from FLASH!
*
*/
uchar num_erase_regions;
int erase_region_size;
int erase_region_count;
- int geometry_reversed = 0;
+ struct cfi_qry qry;
+
+ memset(&qry, 0, sizeof(qry));
info->ext_addr = 0;
info->cfi_version = 0;
info->start[0] = base;
- if (flash_detect_cfi (info)) {
- info->vendor = flash_read_ushort (info, 0,
- FLASH_OFFSET_PRIMARY_VENDOR);
- flash_read_jedec_ids (info);
- flash_write_cmd (info, 0, info->cfi_offset, FLASH_CMD_CFI);
- num_erase_regions = flash_read_uchar (info,
- FLASH_OFFSET_NUM_ERASE_REGIONS);
- info->ext_addr = flash_read_ushort (info, 0,
- FLASH_OFFSET_EXT_QUERY_T_P_ADDR);
+ if (flash_detect_cfi (info, &qry)) {
+ info->vendor = le16_to_cpu(qry.p_id);
+ info->ext_addr = le16_to_cpu(qry.p_adr);
+ num_erase_regions = qry.num_erase_regions;
+
if (info->ext_addr) {
info->cfi_version = (ushort) flash_read_uchar (info,
info->ext_addr + 3) << 8;
info->cfi_version |= (ushort) flash_read_uchar (info,
info->ext_addr + 4);
}
+
#ifdef DEBUG
- flash_printqry (info, 0);
+ flash_printqry (&qry);
#endif
+
switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
case CFI_CMDSET_INTEL_STANDARD:
case CFI_CMDSET_INTEL_EXTENDED:
- default:
- info->cmd_reset = FLASH_CMD_RESET;
-#ifdef CFG_FLASH_PROTECTION
- /* read legacy lock/unlock bit from intel flash */
- if (info->ext_addr) {
- info->legacy_unlock = flash_read_uchar (info,
- info->ext_addr + 5) & 0x08;
- }
-#endif
+ cmdset_intel_init(info, &qry);
break;
case CFI_CMDSET_AMD_STANDARD:
case CFI_CMDSET_AMD_EXTENDED:
- info->cmd_reset = AMD_CMD_RESET;
- /* check if flash geometry needs reversal */
- if (num_erase_regions <= 1)
- break;
- /* reverse geometry if top boot part */
- if (info->cfi_version < 0x3131) {
- /* CFI < 1.1, try to guess from device id */
- if ((info->device_id & 0x80) != 0) {
- geometry_reversed = 1;
- }
- break;
- }
- /* CFI >= 1.1, deduct from top/bottom flag */
- /* note: ext_addr is valid since cfi_version > 0 */
- if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
- geometry_reversed = 1;
- }
+ cmdset_amd_init(info, &qry);
+ break;
+ default:
+ printf("CFI: Unknown command set 0x%x\n",
+ info->vendor);
+ /*
+ * Unfortunately, this means we don't know how
+ * to get the chip back to Read mode. Might
+ * as well try an Intel-style reset...
+ */
+ flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+ return 0;
+ }
+
+ /* Do manufacturer-specific fixups */
+ switch (info->manufacturer_id) {
+ case 0x0001:
+ flash_fixup_amd(info, &qry);
+ break;
+ case 0x001f:
+ flash_fixup_atmel(info, &qry);
break;
}
num_erase_regions, NUM_ERASE_REGIONS);
break;
}
- if (geometry_reversed)
- tmp = flash_read_long (info, 0,
- FLASH_OFFSET_ERASE_REGIONS +
- (num_erase_regions - 1 - i) * 4);
- else
- tmp = flash_read_long (info, 0,
- FLASH_OFFSET_ERASE_REGIONS +
- i * 4);
+
+ tmp = le32_to_cpu(qry.erase_region_info[i]);
+ debug("erase region %u: 0x%08lx\n", i, tmp);
+
+ erase_region_count = (tmp & 0xffff) + 1;
+ tmp >>= 16;
erase_region_size =
(tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
- tmp >>= 16;
- erase_region_count = (tmp & 0xffff) + 1;
debug ("erase_region_count = %d erase_region_size = %d\n",
erase_region_count, erase_region_size);
for (j = 0; j < erase_region_count; j++) {
* supported devices (intel...)
*/
switch (info->vendor) {
+ case CFI_CMDSET_INTEL_PROG_REGIONS:
case CFI_CMDSET_INTEL_EXTENDED:
case CFI_CMDSET_INTEL_STANDARD:
info->protect[sect_cnt] =
}
info->sector_count = sect_cnt;
- info->size = 1 << flash_read_uchar (info, FLASH_OFFSET_SIZE);
+ info->size = 1 << qry.dev_size;
/* multiply the size by the number of chips */
info->size *= size_ratio;
- info->buffer_size = 1 << flash_read_ushort (info, 0,
- FLASH_OFFSET_BUFFER_SIZE);
- tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_ETOUT);
+ info->buffer_size = 1 << le16_to_cpu(qry.max_buf_write_size);
+ tmp = 1 << qry.block_erase_timeout_typ;
info->erase_blk_tout = tmp *
- (1 << flash_read_uchar (
- info, FLASH_OFFSET_EMAX_TOUT));
- tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WBTOUT)) *
- (1 << flash_read_uchar (info, FLASH_OFFSET_WBMAX_TOUT));
+ (1 << qry.block_erase_timeout_max);
+ tmp = (1 << qry.buf_write_timeout_typ) *
+ (1 << qry.buf_write_timeout_max);
+
/* round up when converting to ms */
- info->buffer_write_tout = tmp / 1000 + (tmp % 1000 ? 1 : 0);
- tmp = (1 << flash_read_uchar (info, FLASH_OFFSET_WTOUT)) *
- (1 << flash_read_uchar (info, FLASH_OFFSET_WMAX_TOUT));
+ info->buffer_write_tout = (tmp + 999) / 1000;
+ tmp = (1 << qry.word_write_timeout_typ) *
+ (1 << qry.word_write_timeout_max);
/* round up when converting to ms */
- info->write_tout = tmp / 1000 + (tmp % 1000 ? 1 : 0);
+ info->write_tout = (tmp + 999) / 1000;
info->flash_id = FLASH_MAN_CFI;
if ((info->interface == FLASH_CFI_X8X16) &&
(info->chipwidth == FLASH_CFI_BY8)) {
return (info->size);
}
-/* loop through the sectors from the highest address when the passed
- * address is greater or equal to the sector address we have a match
- */
-static flash_sect_t find_sector (flash_info_t * info, ulong addr)
-{
- flash_sect_t sector;
-
- for (sector = info->sector_count - 1; sector >= 0; sector--) {
- if (addr >= info->start[sector])
- break;
- }
- return sector;
-}
-
/*-----------------------------------------------------------------------
*/
-static int flash_write_cfiword (flash_info_t * info, ulong dest,
- cfiword_t cword)
+unsigned long flash_init (void)
{
- cfiptr_t ctladdr;
- cfiptr_t cptr;
- int flag;
-
- ctladdr.cp = flash_make_addr (info, 0, 0);
- cptr.cp = (uchar *) dest;
-
- /* Check if Flash is (sufficiently) erased */
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- flag = ((cptr.cp[0] & cword.c) == cword.c);
- break;
- case FLASH_CFI_16BIT:
- flag = ((cptr.wp[0] & cword.w) == cword.w);
- break;
- case FLASH_CFI_32BIT:
- flag = ((cptr.lp[0] & cword.l) == cword.l);
- break;
- case FLASH_CFI_64BIT:
- flag = ((cptr.llp[0] & cword.ll) == cword.ll);
- break;
- default:
- return 2;
- }
- if (!flag)
- return 2;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts ();
+ unsigned long size = 0;
+ int i;
+#if defined(CFG_FLASH_AUTOPROTECT_LIST)
+ struct apl_s {
+ ulong start;
+ ulong size;
+ } apl[] = CFG_FLASH_AUTOPROTECT_LIST;
+#endif
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_EXTENDED:
- case CFI_CMDSET_INTEL_STANDARD:
- flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
- break;
- case CFI_CMDSET_AMD_EXTENDED:
- case CFI_CMDSET_AMD_STANDARD:
-#ifdef CONFIG_FLASH_CFI_LEGACY
- case CFI_CMDSET_AMD_LEGACY:
+#ifdef CFG_FLASH_PROTECTION
+ char *s = getenv("unlock");
#endif
- flash_unlock_seq (info, 0);
- flash_write_cmd (info, 0, info->addr_unlock1, AMD_CMD_WRITE);
- break;
- }
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- cptr.cp[0] = cword.c;
- break;
- case FLASH_CFI_16BIT:
- cptr.wp[0] = cword.w;
- break;
- case FLASH_CFI_32BIT:
- cptr.lp[0] = cword.l;
- break;
- case FLASH_CFI_64BIT:
- cptr.llp[0] = cword.ll;
- break;
- }
+#define BANK_BASE(i) (((unsigned long [CFI_MAX_FLASH_BANKS])CFG_FLASH_BANKS_LIST)[i])
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts ();
+ /* Init: no FLASHes known */
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
- return flash_full_status_check (info, find_sector (info, dest),
- info->write_tout, "write");
-}
+ if (!flash_detect_legacy (BANK_BASE(i), i))
+ flash_get_size (BANK_BASE(i), i);
+ size += flash_info[i].size;
+ if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+#ifndef CFG_FLASH_QUIET_TEST
+ printf ("## Unknown FLASH on Bank %d "
+ "- Size = 0x%08lx = %ld MB\n",
+ i+1, flash_info[i].size,
+ flash_info[i].size << 20);
+#endif /* CFG_FLASH_QUIET_TEST */
+ }
+#ifdef CFG_FLASH_PROTECTION
+ else if ((s != NULL) && (strcmp(s, "yes") == 0)) {
+ /*
+ * Only the U-Boot image and it's environment
+ * is protected, all other sectors are
+ * unprotected (unlocked) if flash hardware
+ * protection is used (CFG_FLASH_PROTECTION)
+ * and the environment variable "unlock" is
+ * set to "yes".
+ */
+ if (flash_info[i].legacy_unlock) {
+ int k;
-#ifdef CFG_FLASH_USE_BUFFER_WRITE
+ /*
+ * Disable legacy_unlock temporarily,
+ * since flash_real_protect would
+ * relock all other sectors again
+ * otherwise.
+ */
+ flash_info[i].legacy_unlock = 0;
-static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
- int len)
-{
- flash_sect_t sector;
- int cnt;
- int retcode;
- volatile cfiptr_t src;
- volatile cfiptr_t dst;
+ /*
+ * Legacy unlocking (e.g. Intel J3) ->
+ * unlock only one sector. This will
+ * unlock all sectors.
+ */
+ flash_real_protect (&flash_info[i], 0, 0);
- switch (info->vendor) {
- case CFI_CMDSET_INTEL_STANDARD:
- case CFI_CMDSET_INTEL_EXTENDED:
- src.cp = cp;
- dst.cp = (uchar *) dest;
- sector = find_sector (info, dest);
- flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd (info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER);
- retcode = flash_status_check (info, sector,
- info->buffer_write_tout,
- "write to buffer");
- if (retcode == ERR_OK) {
- /* reduce the number of loops by the width of
- * the port */
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- cnt = len;
- break;
- case FLASH_CFI_16BIT:
- cnt = len >> 1;
- break;
- case FLASH_CFI_32BIT:
- cnt = len >> 2;
- break;
- case FLASH_CFI_64BIT:
- cnt = len >> 3;
- break;
- default:
- return ERR_INVAL;
- break;
- }
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) {
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- *dst.cp++ = *src.cp++;
- break;
- case FLASH_CFI_16BIT:
- *dst.wp++ = *src.wp++;
- break;
- case FLASH_CFI_32BIT:
- *dst.lp++ = *src.lp++;
- break;
- case FLASH_CFI_64BIT:
- *dst.llp++ = *src.llp++;
- break;
- default:
- return ERR_INVAL;
- break;
- }
+ flash_info[i].legacy_unlock = 1;
+
+ /*
+ * Manually mark other sectors as
+ * unlocked (unprotected)
+ */
+ for (k = 1; k < flash_info[i].sector_count; k++)
+ flash_info[i].protect[k] = 0;
+ } else {
+ /*
+ * No legancy unlocking -> unlock all sectors
+ */
+ flash_protect (FLAG_PROTECT_CLEAR,
+ flash_info[i].start[0],
+ flash_info[i].start[0]
+ + flash_info[i].size - 1,
+ &flash_info[i]);
}
- flash_write_cmd (info, sector, 0,
- FLASH_CMD_WRITE_BUFFER_CONFIRM);
- retcode = flash_full_status_check (
- info, sector, info->buffer_write_tout,
- "buffer write");
}
- return retcode;
-
- case CFI_CMDSET_AMD_STANDARD:
- case CFI_CMDSET_AMD_EXTENDED:
- src.cp = cp;
- dst.cp = (uchar *) dest;
- sector = find_sector (info, dest);
+#endif /* CFG_FLASH_PROTECTION */
+ }
- flash_unlock_seq(info,0);
- flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_TO_BUFFER);
+ /* Monitor protection ON by default */
+#if (CFG_MONITOR_BASE >= CFG_FLASH_BASE)
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + monitor_flash_len - 1,
+ flash_get_info(CFG_MONITOR_BASE));
+#endif
- switch (info->portwidth) {
- case FLASH_CFI_8BIT:
- cnt = len;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.cp++ = *src.cp++;
- break;
- case FLASH_CFI_16BIT:
- cnt = len >> 1;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.wp++ = *src.wp++;
- break;
- case FLASH_CFI_32BIT:
- cnt = len >> 2;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.lp++ = *src.lp++;
- break;
- case FLASH_CFI_64BIT:
- cnt = len >> 3;
- flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
- while (cnt-- > 0) *dst.llp++ = *src.llp++;
- break;
- default:
- return ERR_INVAL;
- }
+ /* Environment protection ON by default */
+#ifdef CONFIG_ENV_IS_IN_FLASH
+ flash_protect (FLAG_PROTECT_SET,
+ CONFIG_ENV_ADDR,
+ CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
+ flash_get_info(CONFIG_ENV_ADDR));
+#endif
- flash_write_cmd (info, sector, 0, AMD_CMD_WRITE_BUFFER_CONFIRM);
- retcode = flash_full_status_check (info, sector,
- info->buffer_write_tout,
- "buffer write");
- return retcode;
+ /* Redundant environment protection ON by default */
+#ifdef CONFIG_ENV_ADDR_REDUND
+ flash_protect (FLAG_PROTECT_SET,
+ CONFIG_ENV_ADDR_REDUND,
+ CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SIZE_REDUND - 1,
+ flash_get_info(CONFIG_ENV_ADDR_REDUND));
+#endif
- default:
- debug ("Unknown Command Set\n");
- return ERR_INVAL;
+#if defined(CFG_FLASH_AUTOPROTECT_LIST)
+ for (i = 0; i < (sizeof(apl) / sizeof(struct apl_s)); i++) {
+ debug("autoprotecting from %08x to %08x\n",
+ apl[i].start, apl[i].start + apl[i].size - 1);
+ flash_protect (FLAG_PROTECT_SET,
+ apl[i].start,
+ apl[i].start + apl[i].size - 1,
+ flash_get_info(apl[i].start));
}
+#endif
+ return (size);
}
-#endif /* CFG_FLASH_USE_BUFFER_WRITE */
-
-#endif /* CFG_FLASH_CFI */
projects / platform / kernel / u-boot.git / blobdiff