diff options
| author | Daniel Schwierzeck <daniel.schwierzeck@gmail.com> | 2015-04-27 07:42:04 +0200 |
|---|---|---|
| committer | Jagan Teki <jteki@openedev.com> | 2015-06-30 00:40:11 +0530 |
| commit | 9fe6d8716e090f3b2dd3f4604acfced124b8a2fc (patch) | |
| tree | 1748f1f1fe2457e26d4ff1d725a9a8d36a5a0f53 /drivers/mtd/spi/sf_probe.c | |
| parent | ecfbaa869aa8bd318a017e557faefac2353e9a60 (diff) | |
mtd, spi: Add MTD layer driver
Add MTD layer driver for spi, original patch from:
http://git.denx.de/?p=u-boot/u-boot-mips.git;a=commitdiff;h=bb246819cdc90493dd7089eaa51b9e639765cced
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.
Note (From Jagan): For testing raw mtd parition erase/read/write operations
using cmd_sf, sf_mtd should be required to register the spi flash device to
MTD layer but the sf_mtd_info ops were not required until and unless if we
use any flash filesystem layer say for example UBI. Due to this the foot-print
got increased ~290bytes in non-UBI case here that should be acceptible.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Jagannadh Teki <jteki@openedev.com>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
Diffstat (limited to 'drivers/mtd/spi/sf_probe.c')
| -rw-r--r-- | drivers/mtd/spi/sf_probe.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index 201471c392..e0283dc82c 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -372,11 +372,9 @@ int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash) puts(" Full access #define CONFIG_SPI_FLASH_BAR\n"); } #endif - - /* Release spi bus */ - spi_release_bus(spi); - - return 0; +#ifdef CONFIG_SPI_FLASH_MTD + ret = spi_flash_mtd_register(flash); +#endif err_read_id: spi_release_bus(spi); @@ -430,6 +428,9 @@ struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node, void spi_flash_free(struct spi_flash *flash) { +#ifdef CONFIG_SPI_FLASH_MTD + spi_flash_mtd_unregister(); +#endif spi_free_slave(flash->spi); free(flash); } |