with this patch, it is possible to get the offset and size information
from the mtdpartiton setting in "mtdparts", similiar to the
"nand" commandos.
=> sf
sf - SPI flash sub-system
Usage:
sf probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus
and chip select
sf read addr offset|partition len - read `len' bytes starting at
`offset' to memory at `addr'
sf write addr offset|partition len - write `len' bytes from memory
at `addr' to flash at `offset'
sf erase offset|partition [+]len - erase `len' bytes from `offset'
`+len' round up `len' to block size
sf update addr offset|partition len - erase and write `len' bytes from
memory
at `addr' to flash at `offset'
=>
for example "env" is defined in mtdparts:
=> sf read 13000000 env
device 0 offset 0xd0000, size 0x10000
SF: 65536 bytes @ 0xd0000 Read: OK
=>
Signed-off-by: Heiko Schocher <h...@denx.de>
---
Changes in v2:
- none
Series-changes: 3
- rebase with d6c1ffc7d23f4fe4ae8c91101861055b8e1501b6
Series-changes: 4
- rebased against 385a08a60f042061b004642d6b9bb6cfb794ad5a
Series-changes: 5
- no changes
common/cmd_sf.c | 50 +++++++++++++++++++++++++-------------------------
1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index 25a59e5..1932ac9 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -12,6 +12,8 @@
#include <malloc.h>
#include <spi.h>
#include <spi_flash.h>
+#include <jffs2/jffs2.h>
+#include <linux/mtd/mtd.h>
#include <asm/io.h>
#include <dm/device-internal.h>
@@ -258,23 +260,21 @@ static int spi_flash_update(struct spi_flash *flash, u32
offset,
static int do_spi_flash_read_write(int argc, char * const argv[])
{
unsigned long addr;
- unsigned long offset;
- unsigned long len;
void *buf;
char *endp;
int ret = 1;
+ int dev = 0;
+ loff_t offset, len, maxsize;
- if (argc < 4)
+ if (argc < 3)
return -1;
addr = simple_strtoul(argv[1], &endp, 16);
if (*argv[1] == 0 || *endp != 0)
return -1;
- offset = simple_strtoul(argv[2], &endp, 16);
- if (*argv[2] == 0 || *endp != 0)
- return -1;
- len = simple_strtoul(argv[3], &endp, 16);
- if (*argv[3] == 0 || *endp != 0)
+
+ if (arg_off_size(argc - 2, &argv[2], &dev, &offset, &len, &maxsize,
+ MTD_DEV_TYPE_NOR, flash->size))
return -1;
/* Consistency checking */
@@ -313,31 +313,31 @@ static int do_spi_flash_read_write(int argc, char * const
argv[])
static int do_spi_flash_erase(int argc, char * const argv[])
{
- unsigned long offset;
- unsigned long len;
- char *endp;
int ret;
+ int dev = 0;
+ loff_t offset, len, maxsize;
+ ulong size;
if (argc < 3)
return -1;
- offset = simple_strtoul(argv[1], &endp, 16);
- if (*argv[1] == 0 || *endp != 0)
+ if (arg_off(argv[1], &dev, &offset, &len, &maxsize,
+ MTD_DEV_TYPE_NOR, flash->size))
return -1;
- ret = sf_parse_len_arg(argv[2], &len);
+ ret = sf_parse_len_arg(argv[2], &size);
if (ret != 1)
return -1;
/* Consistency checking */
- if (offset + len > flash->size) {
+ if (offset + size > flash->size) {
printf("ERROR: attempting %s past flash size (%#x)\n",
argv[0], flash->size);
return 1;
}
- ret = spi_flash_erase(flash, offset, len);
- printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)len, (u32)offset,
+ ret = spi_flash_erase(flash, offset, size);
+ printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)size, (u32)offset,
ret ? "ERROR" : "OK");
return ret == 0 ? 0 : 1;
@@ -562,13 +562,13 @@ U_BOOT_CMD(
"SPI flash sub-system",
"probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
" and chip select\n"
- "sf read addr offset len - read `len' bytes starting at\n"
- " `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'\n"
- " `+len' round up `len' to block size\n"
- "sf update addr offset len - erase and write `len' bytes from
memory\n"
- " at `addr' to flash at `offset'"
+ "sf read addr offset|partition len - read `len' bytes starting
at\n"
+ " `offset' to memory at
`addr'\n"
