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-rw-r--r--common/cmd_sf.c111
-rw-r--r--drivers/mtd/spi/atmel.c40
-rw-r--r--drivers/mtd/spi/eon.c13
-rw-r--r--drivers/mtd/spi/macronix.c17
-rw-r--r--drivers/mtd/spi/ramtron.c5
-rw-r--r--drivers/mtd/spi/spansion.c15
-rw-r--r--drivers/mtd/spi/spi_flash.c9
-rw-r--r--drivers/mtd/spi/spi_flash_internal.h2
-rw-r--r--drivers/mtd/spi/sst.c17
-rw-r--r--drivers/mtd/spi/stmicro.c15
-rw-r--r--drivers/mtd/spi/winbond.c13
-rw-r--r--include/spi_flash.h7
12 files changed, 148 insertions, 116 deletions
diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index 6e7be81..11a491d 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -19,6 +19,47 @@
static struct spi_flash *flash;
+
+/*
+ * This function computes the length argument for the erase command.
+ * The length on which the command is to operate can be given in two forms:
+ * 1. <cmd> offset len - operate on <'offset', 'len')
+ * 2. <cmd> offset +len - operate on <'offset', 'round_up(len)')
+ * If the second form is used and the length doesn't fall on the
+ * sector boundary, than it will be adjusted to the next sector boundary.
+ * If it isn't in the flash, the function will fail (return -1).
+ * Input:
+ * arg: length specification (i.e. both command arguments)
+ * Output:
+ * len: computed length for operation
+ * Return:
+ * 1: success
+ * -1: failure (bad format, bad address).
+ */
+static int sf_parse_len_arg(char *arg, ulong *len)
+{
+ char *ep;
+ char round_up_len; /* indicates if the "+length" form used */
+ ulong len_arg;
+
+ round_up_len = 0;
+ if (*arg == '+') {
+ round_up_len = 1;
+ ++arg;
+ }
+
+ len_arg = simple_strtoul(arg, &ep, 16);
+ if (ep == arg || *ep != '\0')
+ return -1;
+
+ if (round_up_len && flash->sector_size > 0)
+ *len = ROUND(len_arg - 1, flash->sector_size);
+ else
+ *len = len_arg;
+
+ return 1;
+}
+
static int do_spi_flash_probe(int argc, char * const argv[])
{
unsigned int bus = 0;
@@ -29,30 +70,30 @@ static int do_spi_flash_probe(int argc, char * const argv[])
struct spi_flash *new;
if (argc < 2)
- goto usage;
+ return -1;
cs = simple_strtoul(argv[1], &endp, 0);
if (*argv[1] == 0 || (*endp != 0 && *endp != ':'))
- goto usage;
+ return -1;
if (*endp == ':') {
if (endp[1] == 0)
- goto usage;
+ return -1;
bus = cs;
cs = simple_strtoul(endp + 1, &endp, 0);
if (*endp != 0)
- goto usage;
+ return -1;
}
if (argc >= 3) {
speed = simple_strtoul(argv[2], &endp, 0);
if (*argv[2] == 0 || *endp != 0)
- goto usage;
+ return -1;
}
if (argc >= 4) {
mode = simple_strtoul(argv[3], &endp, 16);
if (*argv[3] == 0 || *endp != 0)
- goto usage;
+ return -1;
}
new = spi_flash_probe(bus, cs, speed, mode);
@@ -65,14 +106,7 @@ static int do_spi_flash_probe(int argc, char * const argv[])
spi_flash_free(flash);
flash = new;
- printf("%u KiB %s at %u:%u is now current device\n",
- flash->size >> 10, flash->name, bus, cs);
-
return 0;
-
-usage:
- puts("Usage: sf probe [bus:]cs [hz] [mode]\n");
- return 1;
}
static int do_spi_flash_read_write(int argc, char * const argv[])
@@ -85,17 +119,17 @@ static int do_spi_flash_read_write(int argc, char * const argv[])
int ret;
if (argc < 4)
- goto usage;
+ return -1;
addr = simple_strtoul(argv[1], &endp, 16);
if (*argv[1] == 0 || *endp != 0)
- goto usage;
+ return -1;
offset = simple_strtoul(argv[2], &endp, 16);
if (*argv[2] == 0 || *endp != 0)
- goto usage;
+ return -1;
len = simple_strtoul(argv[3], &endp, 16);
if (*argv[3] == 0 || *endp != 0)
- goto usage;
+ return -1;
buf = map_physmem(addr, len, MAP_WRBACK);
if (!buf) {
@@ -116,10 +150,6 @@ static int do_spi_flash_read_write(int argc, char * const argv[])
}
return 0;
-
-usage:
- printf("Usage: sf %s addr offset len\n", argv[0]);
- return 1;
}
static int do_spi_flash_erase(int argc, char * const argv[])
@@ -130,14 +160,15 @@ static int do_spi_flash_erase(int argc, char * const argv[])
int ret;
if (argc < 3)
- goto usage;
+ return -1;
offset = simple_strtoul(argv[1], &endp, 16);
if (*argv[1] == 0 || *endp != 0)
- goto usage;
- len = simple_strtoul(argv[2], &endp, 16);
- if (*argv[2] == 0 || *endp != 0)
- goto usage;
+ return -1;
+
+ ret = sf_parse_len_arg(argv[2], &len);
+ if (ret != 1)
+ return -1;
ret = spi_flash_erase(flash, offset, len);
if (ret) {
@@ -146,24 +177,25 @@ static int do_spi_flash_erase(int argc, char * const argv[])
}
return 0;
-
-usage:
- puts("Usage: sf erase offset len\n");
- return 1;
}
static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
const char *cmd;
+ int ret;
/* need at least two arguments */
if (argc < 2)
goto usage;
cmd = argv[1];
+ --argc;
+ ++argv;
- if (strcmp(cmd, "probe") == 0)
- return do_spi_flash_probe(argc - 1, argv + 1);
+ if (strcmp(cmd, "probe") == 0) {
+ ret = do_spi_flash_probe(argc, argv);
+ goto done;
+ }
/* The remaining commands require a selected device */
if (!flash) {
@@ -172,9 +204,15 @@ static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[
}
if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0)
- return do_spi_flash_read_write(argc - 1, argv + 1);
- if (strcmp(cmd, "erase") == 0)
- return do_spi_flash_erase(argc - 1, argv + 1);
+ ret = do_spi_flash_read_write(argc, argv);
+ else if (strcmp(cmd, "erase") == 0)
+ ret = do_spi_flash_erase(argc, argv);
+ else
+ ret = -1;
+
+done:
+ if (ret != -1)
+ return ret;
usage:
return cmd_usage(cmdtp);
@@ -189,5 +227,6 @@ U_BOOT_CMD(
" `offset' to memory at `addr'\n"
"sf write addr offset len - write `len' bytes from memory\n"
" at `addr' to flash at `offset'\n"
- "sf erase offset len - erase `len' bytes from `offset'"
+ "sf erase offset [+]len - erase `len' bytes from `offset'\n"
+ " `+len' round up `len' to block size"
);
diff --git a/drivers/mtd/spi/atmel.c b/drivers/mtd/spi/atmel.c
index a9910b1..1ecece0 100644
--- a/drivers/mtd/spi/atmel.c
+++ b/drivers/mtd/spi/atmel.c
@@ -113,8 +113,35 @@ static const struct atmel_spi_flash_params atmel_spi_flash_table[] = {
static int at45_wait_ready(struct spi_flash *flash, unsigned long timeout)
{
- return spi_flash_cmd_poll_bit(flash, timeout,
- CMD_AT45_READ_STATUS, AT45_STATUS_READY);
+ struct spi_slave *spi = flash->spi;
+ unsigned long timebase;
+ int ret;
+ u8 cmd = CMD_AT45_READ_STATUS;
+ u8 status;
+
+ timebase = get_timer(0);
+
+ ret = spi_xfer(spi, 8, &cmd, NULL, SPI_XFER_BEGIN);
+ if (ret)
+ return -1;
+
+ do {
+ ret = spi_xfer(spi, 8, NULL, &status, 0);
+ if (ret)
+ return -1;
+
+ if (status & AT45_STATUS_READY)
+ break;
+ } while (get_timer(timebase) < timeout);
+
+ /* Deactivate CS */
+ spi_xfer(spi, 0, NULL, NULL, SPI_XFER_END);
+
+ if (status & AT45_STATUS_READY)
+ return 0;
+
+ /* Timed out */
+ return -1;
}
/*
@@ -301,7 +328,7 @@ out:
/*
* TODO: the two erase funcs (_p2/_at45) should get unified ...
*/
-int dataflash_erase_p2(struct spi_flash *flash, u32 offset, size_t len)
+static int dataflash_erase_p2(struct spi_flash *flash, u32 offset, size_t len)
{
struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
unsigned long page_size;
@@ -360,7 +387,7 @@ out:
return ret;
}
-int dataflash_erase_at45(struct spi_flash *flash, u32 offset, size_t len)
+static int dataflash_erase_at45(struct spi_flash *flash, u32 offset, size_t len)
{
struct atmel_spi_flash *asf = to_atmel_spi_flash(flash);
unsigned long page_addr;
@@ -495,14 +522,11 @@ struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
goto err;
}
+ asf->flash.sector_size = page_size;
asf->flash.size = page_size * params->pages_per_block
* params->blocks_per_sector
* params->nr_sectors;
- printf("SF: Detected %s with page size %u, total ",
- params->name, page_size);
- print_size(asf->flash.size, "\n");
-
return &asf->flash;
err:
diff --git a/drivers/mtd/spi/eon.c b/drivers/mtd/spi/eon.c
index 01caed5..e3de3aa 100644
--- a/drivers/mtd/spi/eon.c
+++ b/drivers/mtd/spi/eon.c
@@ -119,13 +119,9 @@ static int eon_write(struct spi_flash *flash,
return ret;
}
-int eon_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int eon_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- struct eon_spi_flash *eon = to_eon_spi_flash(flash);
- return spi_flash_cmd_erase(flash, CMD_EN25Q128_BE,
- eon->params->page_size * eon->params->pages_per_sector *
- eon->params->sectors_per_block;
- offset, len);
+ return spi_flash_cmd_erase(flash, CMD_EN25Q128_BE, offset, len);
}
struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
@@ -158,11 +154,10 @@ struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
eon->flash.write = eon_write;
eon->flash.erase = eon_erase;
eon->flash.read = spi_flash_cmd_read_fast;
+ eon->flash.sector_size = params->page_size * params->pages_per_sector
+ * params->sectors_per_block;
eon->flash.size = params->page_size * params->pages_per_sector
* params->nr_sectors;
- debug("SF: Detected %s with page size %u, total %u bytes\n",
- params->name, params->page_size, eon->flash.size);
-
return &eon->flash;
}
diff --git a/drivers/mtd/spi/macronix.c b/drivers/mtd/spi/macronix.c
index 4155d4d..ff66f2a 100644
--- a/drivers/mtd/spi/macronix.c
+++ b/drivers/mtd/spi/macronix.c
@@ -175,13 +175,9 @@ static int macronix_write(struct spi_flash *flash,
return ret;
}
-int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- struct macronix_spi_flash *mcx = to_macronix_spi_flash(flash);
- return spi_flash_cmd_erase(flash, CMD_MX25XX_BE,
- mcx->params->page_size * mcx->params->pages_per_sector *
- mcx->params->sectors_per_block,
- offset, len);
+ return spi_flash_cmd_erase(flash, CMD_MX25XX_BE, offset, len);
}
struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
@@ -215,12 +211,9 @@ struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
mcx->flash.write = macronix_write;
mcx->flash.erase = macronix_erase;
mcx->flash.read = spi_flash_cmd_read_fast;
- mcx->flash.size = params->page_size * params->pages_per_sector
- * params->sectors_per_block * params->nr_blocks;
-
- printf("SF: Detected %s with page size %u, total ",
- params->name, params->page_size);
- print_size(mcx->flash.size, "\n");
+ mcx->flash.sector_size = params->page_size * params->pages_per_sector
+ * params->sectors_per_block;
+ mcx->flash.size = mcx->flash.sector_size * params->nr_blocks;
return &mcx->flash;
}
diff --git a/drivers/mtd/spi/ramtron.c b/drivers/mtd/spi/ramtron.c
index 171390d..078d16c 100644
--- a/drivers/mtd/spi/ramtron.c
+++ b/drivers/mtd/spi/ramtron.c
@@ -233,7 +233,7 @@ static int ramtron_write(struct spi_flash *flash,
CMD_RAMTRON_WRITE);
}
-int ramtron_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int ramtron_erase(struct spi_flash *flash, u32 offset, size_t len)
{
debug("SF: Erase of RAMTRON FRAMs is pointless\n");
return -1;
@@ -312,8 +312,5 @@ found:
sn->flash.erase = ramtron_erase;
sn->flash.size = params->size;
- printf("SF: Detected %s with size ", params->name);
- print_size(sn->flash.size, "\n");
-
return &sn->flash;
}
diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c
index d54a5fa..a3401b3 100644
--- a/drivers/mtd/spi/spansion.c
+++ b/drivers/mtd/spi/spansion.c
@@ -196,12 +196,9 @@ static int spansion_write(struct spi_flash *flash,
return ret;
}
-int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash);
- return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE,
- spsn->params->page_size * spsn->params->pages_per_sector,
- offset, len);
+ return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE, offset, len);
}
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
@@ -240,12 +237,8 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
spsn->flash.write = spansion_write;
spsn->flash.erase = spansion_erase;
spsn->flash.read = spi_flash_cmd_read_fast;
- spsn->flash.size = params->page_size * params->pages_per_sector
- * params->nr_sectors;
-
- printf("SF: Detected %s with page size %u, total ",
- params->name, params->page_size);
- print_size(spsn->flash.size, "\n");
+ spsn->flash.sector_size = params->page_size * params->pages_per_sector;
+ spsn->flash.size = spsn->flash.sector_size * params->nr_sectors;
return &spsn->flash;
}
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 5c261f1..c75b716 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -131,12 +131,13 @@ int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout)
}
int spi_flash_cmd_erase(struct spi_flash *flash, u8 erase_cmd,
- u32 erase_size, u32 offset, size_t len)
+ u32 offset, size_t len)
{
- u32 start, end;
+ u32 start, end, erase_size;
int ret;
u8 cmd[4];
+ erase_size = flash->sector_size;
if (offset % erase_size || len % erase_size) {
debug("SF: Erase offset/length not multiple of erase size\n");
return -1;
@@ -296,6 +297,10 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
goto err_manufacturer_probe;
}
+ printf("SF: Detected %s with page size ", flash->name);
+ print_size(flash->sector_size, ", total ");
+ print_size(flash->size, "\n");
+
spi_release_bus(spi);
return flash;
diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h
index d7bcd6d..fc109ce 100644
--- a/drivers/mtd/spi/spi_flash_internal.h
+++ b/drivers/mtd/spi/spi_flash_internal.h
@@ -64,7 +64,7 @@ int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout);
/* Erase sectors. */
int spi_flash_cmd_erase(struct spi_flash *flash, u8 erase_cmd,
- u32 erase_size, u32 offset, size_t len);
+ u32 offset, size_t len);
/* Manufacturer-specific probe functions */
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode);
diff --git a/drivers/mtd/spi/sst.c b/drivers/mtd/spi/sst.c
index 792d04d..4dc2db2 100644
--- a/drivers/mtd/spi/sst.c
+++ b/drivers/mtd/spi/sst.c
@@ -71,6 +71,10 @@ static const struct sst_spi_flash_params sst_spi_flash_table[] = {
.nr_sectors = 1024,
.name = "SST25VF032B",
},{
+ .idcode1 = 0x4b,
+ .nr_sectors = 2048,
+ .name = "SST25VF064C",
+ },{
.idcode1 = 0x01,
.nr_sectors = 16,
.name = "SST25WF512",
@@ -199,10 +203,9 @@ sst_write(struct spi_flash *flash, u32 offset, size_t len, const void *buf)
return ret;
}
-int sst_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int sst_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- return spi_flash_cmd_erase(flash, CMD_SST_SE, SST_SECTOR_SIZE,
- offset, len);
+ return spi_flash_cmd_erase(flash, CMD_SST_SE, offset, len);
}
static int
@@ -256,11 +259,9 @@ spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode)
stm->flash.write = sst_write;
stm->flash.erase = sst_erase;
- stm->flash.size = SST_SECTOR_SIZE * params->nr_sectors;
-
- printf("SF: Detected %s with page size %u, total ",
- params->name, SST_SECTOR_SIZE);
- print_size(stm->flash.size, "\n");
+ stm->flash.read = spi_flash_cmd_read_fast;
+ stm->flash.sector_size = SST_SECTOR_SIZE;
+ stm->flash.size = stm->flash.sector_size * params->nr_sectors;
/* Flash powers up read-only, so clear BP# bits */
sst_unlock(&stm->flash);
diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c
index 7ef690d..a1959ca 100644
--- a/drivers/mtd/spi/stmicro.c
+++ b/drivers/mtd/spi/stmicro.c
@@ -197,12 +197,9 @@ static int stmicro_write(struct spi_flash *flash,
return ret;
}
-int stmicro_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int stmicro_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- struct stmicro_spi_flash *stm = to_stmicro_spi_flash(flash);
- return spi_flash_cmd_erase(flash, CMD_M25PXX_SE,
- stm->params->page_size * stm->params->pages_per_sector,
- offset, len);
+ return spi_flash_cmd_erase(flash, CMD_M25PXX_SE, offset, len);
}
struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
@@ -249,12 +246,8 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
stm->flash.write = stmicro_write;
stm->flash.erase = stmicro_erase;
stm->flash.read = spi_flash_cmd_read_fast;
- stm->flash.size = params->page_size * params->pages_per_sector
- * params->nr_sectors;
-
- printf("SF: Detected %s with page size %u, total ",
- params->name, params->page_size);
- print_size(stm->flash.size, "\n");
+ stm->flash.sector_size = params->page_size * params->pages_per_sector;
+ stm->flash.size = stm->flash.sector_size * params->nr_sectors;
return &stm->flash;
}
diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c
index e88802f..e8d30ae 100644
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -170,12 +170,9 @@ out:
return ret;
}
-int winbond_erase(struct spi_flash *flash, u32 offset, size_t len)
+static int winbond_erase(struct spi_flash *flash, u32 offset, size_t len)
{
- struct winbond_spi_flash *stm = to_winbond_spi_flash(flash);
- return spi_flash_cmd_erase(flash, CMD_W25_SE,
- (1 << stm->params->l2_page_size) * stm->params->pages_per_sector,
- offset, len);
+ return spi_flash_cmd_erase(flash, CMD_W25_SE, offset, len);
}
struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
@@ -213,13 +210,11 @@ struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
stm->flash.write = winbond_write;
stm->flash.erase = winbond_erase;
stm->flash.read = spi_flash_cmd_read_fast;
+ stm->flash.sector_size = (1 << stm->params->l2_page_size) *
+ stm->params->pages_per_sector;
stm->flash.size = page_size * params->pages_per_sector
* params->sectors_per_block
* params->nr_blocks;
- printf("SF: Detected %s with page size %u, total ",
- params->name, page_size);
- print_size(stm->flash.size, "\n");
-
return &stm->flash;
}
diff --git a/include/spi_flash.h b/include/spi_flash.h
index 1f8ba29..a384071 100644
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -26,11 +26,6 @@
#include <spi.h>
#include <linux/types.h>
-struct spi_flash_region {
- unsigned int count;
- unsigned int size;
-};
-
struct spi_flash {
struct spi_slave *spi;
@@ -38,6 +33,8 @@ struct spi_flash {
u32 size;
+ u32 sector_size;
+
int (*read)(struct spi_flash *flash, u32 offset,
size_t len, void *buf);
int (*write)(struct spi_flash *flash, u32 offset,
generated by cgit v1.1 at 2024-12-22 18:42:11 +0000