[U-Boot] [PATCH v2 0/3] spi, sf: add mtdparts feature to spi and sf commands
This patchserie add the popssibility to define mtd partitions on spi nor flash, and use this settings with the sf commands.
steps:
- add MTD layer driver for spi, original patch from: http://git.denx.de/?p=u-boot/u-boot-mips.git;a=commitdiff;h=bb246819cdc90493...
and addapted it to current mainline.
- move common functions to get offset and size from cmdline nand command to extract offset and size from a mtd partition to common place "drivers/mtd/mtd_uboot.c" maybe another place is better?
- add to the sf command the possibility to use offset and size from the settings in mtdparts
With this patchset, the sf command looks now:
=> 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 =>
There are the followings checkpatch warnings:
CHECK: Alignment should match open parenthesis #153: FILE: common/cmd_nand.c:217: + if (arg_off(argv[2], &idx, &addr, &maxsize, &maxsize, + MTD_DEV_TYPE_NAND, nand_info[idx].size)) {
CHECK: Alignment should match open parenthesis #179: FILE: common/cmd_nand.c:557: + if (arg_off(argv[3], &dev, &off, &size, &maxsize, + MTD_DEV_TYPE_NAND, nand_info[dev].size))
CHECK: Alignment should match open parenthesis #193: FILE: common/cmd_nand.c:576: + if (arg_off_size(argc - 3, argv + 3, &dev, &off, &size, + &maxsize, MTD_DEV_TYPE_NAND,
total: 0 errors, 0 warnings, 3 checks, 361 lines checked
NOTE: Ignored message types: COMPLEX_MACRO CONSIDER_KSTRTO MINMAX MULTISTATEMENT_MACRO_USE_DO_WHILE NETWORKING_BLOCK_COMMENT_STYLE USLEEP_RANGE
20140714_ml_mtdparts/0002-mtd-nand-move-common-functions-from-cmd_nand.c-to-co.patch has style problems, please review.
I see not, why this warning pops up ...
- changes for v2: - mtd-spi-add-MTD-layer-driver.patch - add comment from Daniel Schwierzeck: fix compile error from original patch with "static inline" rather than "static __maybe_unused"
Cc: Scott Wood scottwood@freescale.com Cc: Tom Rini trini@ti.com Cc: Daniel Schwierzeck daniel.schwierzeck@gmail.com Cc: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com
Daniel Schwierzeck (1): mtd, spi: add MTD layer driver
Heiko Schocher (2): mtd, nand: move common functions from cmd_nand.c to common place spi, sf: use offset and size in sf cmd from mtdpartition
README | 3 + common/cmd_nand.c | 140 ++++++++---------------------------------- common/cmd_onenand.c | 19 ++---- common/cmd_sf.c | 59 +++++++++--------- drivers/mtd/Makefile | 4 +- drivers/mtd/mtd_uboot.c | 114 ++++++++++++++++++++++++++++++++++ drivers/mtd/spi/Makefile | 1 + drivers/mtd/spi/sf_internal.h | 13 ++++ drivers/mtd/spi/sf_mtd.c | 104 +++++++++++++++++++++++++++++++ drivers/mtd/spi/sf_probe.c | 5 ++ include/linux/mtd/mtd.h | 7 +++ 11 files changed, 310 insertions(+), 159 deletions(-) create mode 100644 drivers/mtd/mtd_uboot.c create mode 100644 drivers/mtd/spi/sf_mtd.c
From: Daniel Schwierzeck daniel.schwierzeck@gmail.com
add MTD layer driver for spi, original patch from: http://git.denx.de/?p=u-boot/u-boot-mips.git;a=commitdiff;h=bb246819cdc90493...
changes from Heiko Schocher against this patch: - remove compile error if not defining CONFIG_SPI_FLASH_MTD:
LD drivers/mtd/spi/built-in.o drivers/mtd/spi/sf_probe.o: In function `spi_flash_mtd_unregister': /home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: multiple definition of `spi_flash_mtd_unregister' drivers/mtd/spi/sf_params.o:/home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: first defined here drivers/mtd/spi/sf_ops.o: In function `spi_flash_mtd_unregister': /home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: multiple definition of `spi_flash_mtd_unregister' drivers/mtd/spi/sf_params.o:/home/hs/abb/imx6/u-boot/drivers/mtd/spi/sf_internal.h:168: first defined here make[1]: *** [drivers/mtd/spi/built-in.o] Fehler 1 make: *** [drivers/mtd/spi] Fehler 2
- add a README entry. - add correct writebufsize, to fit with Linux v3.14 MTD, UBI/UBIFS sync.
Signed-off-by: Daniel Schwierzeck daniel.schwierzeck@gmail.com Signed-off-by: Heiko Schocher hs@denx.de Cc: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com
--- MAKEALL for ar, mips, powerc compiles clean
- changes for v2: - add comment from Daniel Schwierzeck: fix compile error from original patch with "static inline" rather than "static __maybe_unused"
README | 3 ++ common/cmd_sf.c | 9 ++-- drivers/mtd/spi/Makefile | 1 + drivers/mtd/spi/sf_internal.h | 13 ++++++ drivers/mtd/spi/sf_mtd.c | 104 ++++++++++++++++++++++++++++++++++++++++++ drivers/mtd/spi/sf_probe.c | 5 ++ 6 files changed, 131 insertions(+), 4 deletions(-) create mode 100644 drivers/mtd/spi/sf_mtd.c
diff --git a/README b/README index 6cd5959..fec89bb 100644 --- a/README +++ b/README @@ -2926,6 +2926,9 @@ CBFS (Coreboot Filesystem) support memories can be connected with a given cs line. currently Xilinx Zynq qspi support these type of connections.
+ CONFIG_SPI_FLASH_MTD + add MTD translation layer driver. + - SystemACE Support: CONFIG_SYSTEMACE
diff --git a/common/cmd_sf.c b/common/cmd_sf.c index b4ceb71..7653d7e 100644 --- a/common/cmd_sf.c +++ b/common/cmd_sf.c @@ -121,16 +121,17 @@ static int do_spi_flash_probe(int argc, char * const argv[]) return -1; }
+ if (flash) + spi_flash_free(flash); + new = spi_flash_probe(bus, cs, speed, mode); + flash = new; + if (!new) { printf("Failed to initialize SPI flash at %u:%u\n", bus, cs); return 1; }
- if (flash) - spi_flash_free(flash); - flash = new; - return 0; }
diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile index 9e18fb4..b15d273 100644 --- a/drivers/mtd/spi/Makefile +++ b/drivers/mtd/spi/Makefile @@ -12,6 +12,7 @@ endif
obj-$(CONFIG_CMD_SF) += sf.o obj-$(CONFIG_SPI_FLASH) += sf_params.o sf_probe.o sf_ops.o +obj-$(CONFIG_SPI_FLASH_MTD) += sf_mtd.o obj-$(CONFIG_SPI_FRAM_RAMTRON) += ramtron.o obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o obj-$(CONFIG_SPI_M95XXX) += eeprom_m95xxx.o diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 6bcd522..5c66d9f 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -156,4 +156,17 @@ int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, size_t len, void *data);
+#ifdef CONFIG_SPI_FLASH_MTD +int spi_flash_mtd_register(struct spi_flash *flash); +void spi_flash_mtd_unregister(void); +#else +static inline int spi_flash_mtd_register(struct spi_flash *flash) +{ + return 0; +} +static inline void spi_flash_mtd_unregister(void) +{ +} +#endif + #endif /* _SF_INTERNAL_H_ */ diff --git a/drivers/mtd/spi/sf_mtd.c b/drivers/mtd/spi/sf_mtd.c new file mode 100644 index 0000000..0b9cb62 --- /dev/null +++ b/drivers/mtd/spi/sf_mtd.c @@ -0,0 +1,104 @@ +/* + * Copyright (C) 2012-2014 Daniel Schwierzeck, daniel.schwierzeck@gmail.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <malloc.h> +#include <asm/errno.h> +#include <linux/mtd/mtd.h> +#include <spi_flash.h> + +static struct mtd_info sf_mtd_info; +static char sf_mtd_name[8]; + +static int spi_flash_mtd_erase(struct mtd_info *mtd, struct erase_info *instr) +{ + struct spi_flash *flash = mtd->priv; + int err; + + instr->state = MTD_ERASING; + + err = spi_flash_erase(flash, instr->addr, instr->len); + if (err) { + instr->state = MTD_ERASE_FAILED; + instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN; + return -EIO; + } + + instr->state = MTD_ERASE_DONE; + mtd_erase_callback(instr); + + return 0; +} + +static int spi_flash_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char *buf) +{ + struct spi_flash *flash = mtd->priv; + int err; + + err = spi_flash_read(flash, from, len, buf); + if (!err) + *retlen = len; + + return err; +} + +static int spi_flash_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, + size_t *retlen, const u_char *buf) +{ + struct spi_flash *flash = mtd->priv; + int err; + + err = spi_flash_write(flash, to, len, buf); + if (!err) + *retlen = len; + + return err; +} + +static void spi_flash_mtd_sync(struct mtd_info *mtd) +{ +} + +static int spi_flash_mtd_number(void) +{ +#ifdef CONFIG_SYS_MAX_FLASH_BANKS + return CONFIG_SYS_MAX_FLASH_BANKS; +#else + return 0; +#endif +} + +int spi_flash_mtd_register(struct spi_flash *flash) +{ + memset(&sf_mtd_info, 0, sizeof(sf_mtd_info)); + sprintf(sf_mtd_name, "nor%d", spi_flash_mtd_number()); + + sf_mtd_info.name = sf_mtd_name; + sf_mtd_info.type = MTD_NORFLASH; + sf_mtd_info.flags = MTD_CAP_NORFLASH; + sf_mtd_info.writesize = 1; + sf_mtd_info.writebufsize = flash->page_size; + + sf_mtd_info._erase = spi_flash_mtd_erase; + sf_mtd_info._read = spi_flash_mtd_read; + sf_mtd_info._write = spi_flash_mtd_write; + sf_mtd_info._sync = spi_flash_mtd_sync; + + sf_mtd_info.size = flash->size; + sf_mtd_info.priv = flash; + + /* Only uniform flash devices for now */ + sf_mtd_info.numeraseregions = 0; + sf_mtd_info.erasesize = flash->sector_size; + + return add_mtd_device(&sf_mtd_info); +} + +void spi_flash_mtd_unregister(void) +{ + del_mtd_device(&sf_mtd_info); +} diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index 36ae5e0..f6d793b 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -355,6 +355,10 @@ static struct spi_flash *spi_flash_probe_slave(struct spi_slave *spi) /* Release spi bus */ spi_release_bus(spi);
+ ret = spi_flash_mtd_register(flash); + if (ret) + goto err_claim_bus; + return flash;
err_read_id: @@ -386,6 +390,7 @@ struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node,
void spi_flash_free(struct spi_flash *flash) { + spi_flash_mtd_unregister(); spi_free_slave(flash->spi); free(flash); }
move common functions from cmd_nand.c (for calculating offset and size from cmdline paramter) to common place, so they could used from other commands which use mtd partitions.
For onenand the arg_off_size() is left in common/cmd_onenand.c. It should use now the common arg_off() function, but as I could not test onenand I let it there ...
Signed-off-by: Heiko Schocher hs@denx.de Cc: Scott Wood scottwood@freescale.com Cc: Tom Rini trini@ti.com
--- - changes for v2: none
common/cmd_nand.c | 140 +++++++++--------------------------------------- common/cmd_onenand.c | 19 +++---- drivers/mtd/Makefile | 4 +- drivers/mtd/mtd_uboot.c | 114 +++++++++++++++++++++++++++++++++++++++ include/linux/mtd/mtd.h | 7 +++ 5 files changed, 154 insertions(+), 130 deletions(-) create mode 100644 drivers/mtd/mtd_uboot.c
diff --git a/common/cmd_nand.c b/common/cmd_nand.c index f9ced9d..d6232e3 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -133,115 +133,6 @@ static int set_dev(int dev) return 0; }
-static inline int str2off(const char *p, loff_t *num) -{ - char *endptr; - - *num = simple_strtoull(p, &endptr, 16); - return *p != '\0' && *endptr == '\0'; -} - -static inline int str2long(const char *p, ulong *num) -{ - char *endptr; - - *num = simple_strtoul(p, &endptr, 16); - return *p != '\0' && *endptr == '\0'; -} - -static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size, - loff_t *maxsize) -{ -#ifdef CONFIG_CMD_MTDPARTS - struct mtd_device *dev; - struct part_info *part; - u8 pnum; - int ret; - - ret = mtdparts_init(); - if (ret) - return ret; - - ret = find_dev_and_part(partname, &dev, &pnum, &part); - if (ret) - return ret; - - if (dev->id->type != MTD_DEV_TYPE_NAND) { - puts("not a NAND device\n"); - return -1; - } - - *off = part->offset; - *size = part->size; - *maxsize = part->size; - *idx = dev->id->num; - - ret = set_dev(*idx); - if (ret) - return ret; - - return 0; -#else - puts("offset is not a number\n"); - return -1; -#endif -} - -static int arg_off(const char *arg, int *idx, loff_t *off, loff_t *size, - loff_t *maxsize) -{ - if (!str2off(arg, off)) - return get_part(arg, idx, off, size, maxsize); - - if (*off >= nand_info[*idx].size) { - puts("Offset exceeds device limit\n"); - return -1; - } - - *maxsize = nand_info[*idx].size - *off; - *size = *maxsize; - return 0; -} - -static int arg_off_size(int argc, char *const argv[], int *idx, - loff_t *off, loff_t *size, loff_t *maxsize) -{ - int ret; - - if (argc == 0) { - *off = 0; - *size = nand_info[*idx].size; - *maxsize = *size; - goto print; - } - - ret = arg_off(argv[0], idx, off, size, maxsize); - if (ret) - return ret; - - if (argc == 1) - goto print; - - if (!str2off(argv[1], size)) { - printf("'%s' is not a number\n", argv[1]); - return -1; - } - - if (*size > *maxsize) { - puts("Size exceeds partition or device limit\n"); - return -1; - } - -print: - printf("device %d ", *idx); - if (*size == nand_info[*idx].size) - puts("whole chip\n"); - else - printf("offset 0x%llx, size 0x%llx\n", - (unsigned long long)*off, (unsigned long long)*size); - return 0; -} - #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK static void print_status(ulong start, ulong end, ulong erasesize, int status) { @@ -322,7 +213,12 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[]) goto usage;
/* We don't care about size, or maxsize. */ - if (arg_off(argv[2], &idx, &addr, &maxsize, &maxsize)) { + if (arg_off(argv[2], &idx, &addr, &maxsize, &maxsize, + MTD_DEV_TYPE_NAND, nand_info[idx].size)) { + puts("Offset or partition name expected\n"); + return 1; + } + if (set_dev(idx)) { puts("Offset or partition name expected\n"); return 1; } @@ -592,7 +488,10 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) printf("\nNAND %s: ", cmd); /* skip first two or three arguments, look for offset and size */ if (arg_off_size(argc - o, argv + o, &dev, &off, &size, - &maxsize) != 0) + &maxsize, MTD_DEV_TYPE_NAND, nand_info[dev].size) != 0) + return 1; + + if (set_dev(dev)) return 1;
nand = &nand_info[dev]; @@ -654,7 +553,11 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) if (s && !strcmp(s, ".raw")) { raw = 1;
- if (arg_off(argv[3], &dev, &off, &size, &maxsize)) + if (arg_off(argv[3], &dev, &off, &size, &maxsize, + MTD_DEV_TYPE_NAND, nand_info[dev].size)) + return 1; + + if (set_dev(dev)) return 1;
if (argc > 4 && !str2long(argv[4], &pagecount)) { @@ -669,8 +572,12 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
rwsize = pagecount * (nand->writesize + nand->oobsize); } else { - if (arg_off_size(argc - 3, argv + 3, &dev, - &off, &size, &maxsize) != 0) + if (arg_off_size(argc - 3, argv + 3, &dev, &off, &size, + &maxsize, MTD_DEV_TYPE_NAND, + nand_info[dev].size) != 0) + return 1; + + if (set_dev(dev)) return 1;
/* size is unspecified */ @@ -816,7 +723,10 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) allexcept = 1;
if (arg_off_size(argc - 2, argv + 2, &dev, &off, &size, - &maxsize) < 0) + &maxsize, MTD_DEV_TYPE_NAND, nand_info[dev].size) < 0) + return 1; + + if (set_dev(dev)) return 1;
if (!nand_unlock(&nand_info[dev], off, size, allexcept)) { diff --git a/common/cmd_onenand.c b/common/cmd_onenand.c index 06cc140..feab01a 100644 --- a/common/cmd_onenand.c +++ b/common/cmd_onenand.c @@ -24,15 +24,8 @@ static struct mtd_info *mtd; static loff_t next_ofs; static loff_t skip_ofs;
-static inline int str2long(char *p, ulong *num) -{ - char *endptr; - - *num = simple_strtoul(p, &endptr, 16); - return (*p != '\0' && *endptr == '\0') ? 1 : 0; -} - -static int arg_off_size(int argc, char * const argv[], ulong *off, size_t *size) +static int arg_off_size_onenand(int argc, char * const argv[], ulong *off, + size_t *size) { if (argc >= 1) { if (!(str2long(argv[0], off))) { @@ -399,7 +392,7 @@ static int do_onenand_read(cmd_tbl_t * cmdtp, int flag, int argc, char * const a addr = (ulong)simple_strtoul(argv[1], NULL, 16);
printf("\nOneNAND read: "); - if (arg_off_size(argc - 2, argv + 2, &ofs, &len) != 0) + if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0) return 1;
ret = onenand_block_read(ofs, len, &retlen, (u8 *)addr, oob); @@ -425,7 +418,7 @@ static int do_onenand_write(cmd_tbl_t * cmdtp, int flag, int argc, char * const addr = (ulong)simple_strtoul(argv[1], NULL, 16);
printf("\nOneNAND write: "); - if (arg_off_size(argc - 2, argv + 2, &ofs, &len) != 0) + if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0) return 1;
ret = onenand_block_write(ofs, len, &retlen, (u8 *)addr, withoob); @@ -461,7 +454,7 @@ static int do_onenand_erase(cmd_tbl_t * cmdtp, int flag, int argc, char * const printf("\nOneNAND erase: ");
/* skip first two or three arguments, look for offset and size */ - if (arg_off_size(argc, argv, &ofs, &len) != 0) + if (arg_off_size_onenand(argc, argv, &ofs, &len) != 0) return 1;
ret = onenand_block_erase(ofs, len, force); @@ -486,7 +479,7 @@ static int do_onenand_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const a printf("\nOneNAND test: ");
/* skip first two or three arguments, look for offset and size */ - if (arg_off_size(argc - 1, argv + 1, &ofs, &len) != 0) + if (arg_off_size_onenand(argc - 1, argv + 1, &ofs, &len) != 0) return 1;
ret = onenand_block_test(ofs, len); diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index 5467a951..a623f4c 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -5,8 +5,8 @@ # SPDX-License-Identifier: GPL-2.0+ #
-ifneq (,$(findstring y,$(CONFIG_MTD_DEVICE)$(CONFIG_CMD_NAND)$(CONFIG_CMD_ONENAND))) -obj-y += mtdcore.o +ifneq (,$(findstring y,$(CONFIG_MTD_DEVICE)$(CONFIG_CMD_NAND)$(CONFIG_CMD_ONENAND)$(CONFIG_CMD_SF))) +obj-y += mtdcore.o mtd_uboot.o endif obj-$(CONFIG_MTD_PARTITIONS) += mtdpart.o obj-$(CONFIG_MTD_CONCAT) += mtdconcat.o diff --git a/drivers/mtd/mtd_uboot.c b/drivers/mtd/mtd_uboot.c new file mode 100644 index 0000000..66e49c3 --- /dev/null +++ b/drivers/mtd/mtd_uboot.c @@ -0,0 +1,114 @@ +/* + * (C) Copyright 2014 + * Heiko Schocher, DENX Software Engineering, hs@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <linux/mtd/mtd.h> +#include <jffs2/jffs2.h> + +inline int str2off(const char *p, loff_t *num) +{ + char *endptr; + + *num = simple_strtoull(p, &endptr, 16); + return *p != '\0' && *endptr == '\0'; +} + +inline int str2long(const char *p, ulong *num) +{ + char *endptr; + + *num = simple_strtoul(p, &endptr, 16); + return *p != '\0' && *endptr == '\0'; +} + +static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size, + loff_t *maxsize, int devtype) +{ +#ifdef CONFIG_CMD_MTDPARTS + struct mtd_device *dev; + struct part_info *part; + u8 pnum; + int ret; + + ret = mtdparts_init(); + if (ret) + return ret; + + ret = find_dev_and_part(partname, &dev, &pnum, &part); + if (ret) + return ret; + + if (dev->id->type != devtype) { + printf("not same typ %d != %d\n", dev->id->type, devtype); + return -1; + } + + *off = part->offset; + *size = part->size; + *maxsize = part->size; + *idx = dev->id->num; + + return 0; +#else + puts("offset is not a number\n"); + return -1; +#endif +} + +int arg_off(const char *arg, int *idx, loff_t *off, loff_t *size, + loff_t *maxsize, int devtype, int chipsize) +{ + if (!str2off(arg, off)) + return get_part(arg, idx, off, size, maxsize, devtype); + + if (*off >= chipsize) { + puts("Offset exceeds device limit\n"); + return -1; + } + + *maxsize = chipsize - *off; + *size = *maxsize; + return 0; +} + +int arg_off_size(int argc, char *const argv[], int *idx, loff_t *off, + loff_t *size, loff_t *maxsize, int devtype, int chipsize) +{ + int ret; + + if (argc == 0) { + *off = 0; + *size = chipsize; + *maxsize = *size; + goto print; + } + + ret = arg_off(argv[0], idx, off, size, maxsize, devtype, chipsize); + if (ret) + return ret; + + if (argc == 1) + goto print; + + if (!str2off(argv[1], size)) { + printf("'%s' is not a number\n", argv[1]); + return -1; + } + + if (*size > *maxsize) { + puts("Size exceeds partition or device limit\n"); + return -1; + } + +print: + printf("device %d ", *idx); + if (*size == chipsize) + puts("whole chip\n"); + else + printf("offset 0x%llx, size 0x%llx\n", + (unsigned long long)*off, (unsigned long long)*size); + return 0; +} diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index b7b4757..47fd6f0 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -482,5 +482,12 @@ static inline int mtd_is_bitflip_or_eccerr(int err) { int add_mtd_device(struct mtd_info *mtd); int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); int del_mtd_partitions(struct mtd_info *); + +int str2off(const char *p, loff_t *num); +int str2long(const char *p, ulong *num); +int arg_off(const char *arg, int *idx, loff_t *off, loff_t *size, + loff_t *maxsize, int devtype, int chipsize); +int arg_off_size(int argc, char *const argv[], int *idx, loff_t *off, + loff_t *size, loff_t *maxsize, int devtype, int chipsize); #endif #endif /* __MTD_MTD_H__ */
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 hs@denx.de Cc: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com
--- - changes for v2: none
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 7653d7e..fc306ee 100644 --- a/common/cmd_sf.c +++ b/common/cmd_sf.c @@ -10,6 +10,8 @@ #include <div64.h> #include <malloc.h> #include <spi_flash.h> +#include <jffs2/jffs2.h> +#include <linux/mtd/mtd.h>
#include <asm/io.h>
@@ -244,23 +246,21 @@ 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 */ @@ -299,31 +299,31 @@ 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; @@ -545,13 +545,13 @@ 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" + "sf write addr offset|partition len - write `len' bytes from memory\n" + " at `addr' to flash at `offset'\n" + "sf erase offset|partition [+]len - erase `len' bytes from `offset'\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'" SF_TEST_HELP );
participants (1)
-
Heiko Schocher