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spi, sf: Use offset and size in sf cmd from mtdpartition

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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

zynq-uboot> mtdparts add nor0 0x10000@0x0 env
zynq-uboot> sf erase env 0x10000
SF: 65536 bytes @ 0x0 Erased: OK

zynq-uboot> sf write 0x100 env
device 0 offset 0x0, size 0x10000
SF: 65536 bytes @ 0x0 Written: OK

zynq-uboot> sf read 0x40000 env
device 0 offset 0x0, size 0x10000
SF: 65536 bytes @ 0x0 Read: OK

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Jagannadh Teki <jteki@openedev.com>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
This commit is contained in:
Heiko Schocher 2015-04-27 07:42:06 +02:00 • committed by Jagan Teki
parent 09c3280754
commit 2ec1a4059c
1 changed files with 29 additions and 25 deletions
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54
common/cmd_sf.c
View file

@ -13,6 +13,8 @@
#include <mapmem.h> #include <mapmem.h>
#include <spi.h> #include <spi.h>
#include <spi_flash.h> #include <spi_flash.h>
#include <jffs2/jffs2.h>
#include <linux/mtd/mtd.h>
#include <asm/io.h> #include <asm/io.h>
#include <dm/device-internal.h> #include <dm/device-internal.h>
@ -254,23 +256,21 @@ static int spi_flash_update(struct spi_flash *flash, u32 offset,
static int do_spi_flash_read_write(int argc, char * const argv[]) static int do_spi_flash_read_write(int argc, char * const argv[])
{ {
unsigned long addr; unsigned long addr;
unsigned long offset;
unsigned long len;
void *buf; void *buf;
char *endp; char *endp;
int ret = 1; int ret = 1;
int dev = 0;
loff_t offset, len, maxsize;
if (argc < 4) if (argc < 3)
return -1; return -1;
addr = simple_strtoul(argv[1], &endp, 16); addr = simple_strtoul(argv[1], &endp, 16);
if (*argv[1] == 0 || *endp != 0) if (*argv[1] == 0 || *endp != 0)
return -1; return -1;
offset = simple_strtoul(argv[2], &endp, 16);
if (*argv[2] == 0 || *endp != 0) if (mtd_arg_off_size(argc - 2, &argv[2], &dev, &offset, &len,
return -1; &maxsize, MTD_DEV_TYPE_NOR, flash->size))
len = simple_strtoul(argv[3], &endp, 16);
if (*argv[3] == 0 || *endp != 0)
return -1; return -1;
/* Consistency checking */ /* Consistency checking */
@ -309,31 +309,31 @@ static int do_spi_flash_read_write(int argc, char * const argv[])
static int do_spi_flash_erase(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 ret;
int dev = 0;
loff_t offset, len, maxsize;
ulong size;
if (argc < 3) if (argc < 3)
return -1; return -1;
offset = simple_strtoul(argv[1], &endp, 16); if (mtd_arg_off(argv[1], &dev, &offset, &len, &maxsize,
if (*argv[1] == 0 || *endp != 0) MTD_DEV_TYPE_NOR, flash->size))
return -1; return -1;
ret = sf_parse_len_arg(argv[2], &len); ret = sf_parse_len_arg(argv[2], &size);
if (ret != 1) if (ret != 1)
return -1; return -1;
/* Consistency checking */ /* Consistency checking */
if (offset + len > flash->size) { if (offset + size > flash->size) {
printf("ERROR: attempting %s past flash size (%#x)\n", printf("ERROR: attempting %s past flash size (%#x)\n",
argv[0], flash->size); argv[0], flash->size);
return 1; return 1;
} }
ret = spi_flash_erase(flash, offset, len); ret = spi_flash_erase(flash, offset, size);
printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)len, (u32)offset, printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)size, (u32)offset,
ret ? "ERROR" : "OK"); ret ? "ERROR" : "OK");
return ret == 0 ? 0 : 1; return ret == 0 ? 0 : 1;
@ -558,13 +558,17 @@ U_BOOT_CMD(
"SPI flash sub-system", "SPI flash sub-system",
"probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n" "probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
" and chip select\n" " and chip select\n"
"sf read addr offset len - read `len' bytes starting at\n" "sf read addr offset|partition len - read `len' bytes starting at\n"
" `offset' to memory at `addr'\n" " `offset' or from start of mtd\n"
"sf write addr offset len - write `len' bytes from memory\n" " `partition'to memory at `addr'\n"
" at `addr' to flash at `offset'\n" "sf write addr offset|partition len - write `len' bytes from memory\n"
"sf erase offset [+]len - erase `len' bytes from `offset'\n" " at `addr' to flash at `offset'\n"
" `+len' round up `len' to block size\n" " or to start of mtd `partition'\n"
"sf update addr offset len - erase and write `len' bytes from memory\n" "sf erase offset|partition [+]len - erase `len' bytes from `offset'\n"
" at `addr' to flash at `offset'" " or from start of mtd `partition'\n"
" `+len' round up `len' to block size\n"
"sf update addr offset|partition len - erase and write `len' bytes from memory\n"
" at `addr' to flash at `offset'\n"
" or to start of mtd `partition'\n"
SF_TEST_HELP SF_TEST_HELP
); );