diff options
| author | Jagannadha Sutradharudu Teki <jaganna@xilinx.com> | 2014-01-11 15:25:04 +0530 |
|---|---|---|
| committer | Jagannadha Sutradharudu Teki <jaganna@xilinx.com> | 2014-01-12 21:40:22 +0530 |
| commit | b902e07cea51e33fbe36453f7b1412dd7bbe760f (patch) | |
| tree | eeddfd3f94263f3557bdb3f6b6f1dabfc3757779 /drivers/mtd | |
| parent | 056fbc73d54df64adcb93c513cba708acb2683bd (diff) | |
| download | talos-obmc-uboot-b902e07cea51e33fbe36453f7b1412dd7bbe760f.tar.gz talos-obmc-uboot-b902e07cea51e33fbe36453f7b1412dd7bbe760f.zip | |
sf: Add CONFIG_SF_DUAL_FLASH
This config will use for defining greater than single flash support.
currently - DUAL_STACKED and DUAL_PARALLEL.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/spi/sf.c | 3 | ||||
| -rw-r--r-- | drivers/mtd/spi/sf_ops.c | 14 | ||||
| -rw-r--r-- | drivers/mtd/spi/sf_probe.c | 2 |
3 files changed, 14 insertions, 5 deletions
diff --git a/drivers/mtd/spi/sf.c b/drivers/mtd/spi/sf.c index c780a81c59..664e86082b 100644 --- a/drivers/mtd/spi/sf.c +++ b/drivers/mtd/spi/sf.c @@ -18,9 +18,10 @@ static int spi_flash_read_write(struct spi_slave *spi, unsigned long flags = SPI_XFER_BEGIN; int ret; +#ifdef CONFIG_SF_DUAL_FLASH if (spi->flags & SPI_XFER_U_PAGE) flags |= SPI_XFER_U_PAGE; - +#endif if (data_len == 0) flags |= SPI_XFER_END; diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c index 843f379ef1..1f1bb36065 100644 --- a/drivers/mtd/spi/sf_ops.c +++ b/drivers/mtd/spi/sf_ops.c @@ -131,6 +131,7 @@ static int spi_flash_bank(struct spi_flash *flash, u32 offset) } #endif +#ifdef CONFIG_SF_DUAL_FLASH static void spi_flash_dual_flash(struct spi_flash *flash, u32 *addr) { switch (flash->dual_flash) { @@ -150,6 +151,7 @@ static void spi_flash_dual_flash(struct spi_flash *flash, u32 *addr) break; } } +#endif int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout) { @@ -167,9 +169,10 @@ int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout) check_status = poll_bit; } +#ifdef CONFIG_SF_DUAL_FLASH if (spi->flags & SPI_XFER_U_PAGE) flags |= SPI_XFER_U_PAGE; - +#endif ret = spi_xfer(spi, 8, &cmd, NULL, flags); if (ret) { debug("SF: fail to read %s status register\n", @@ -257,9 +260,10 @@ int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32 offset, size_t len) while (len) { erase_addr = offset; +#ifdef CONFIG_SF_DUAL_FLASH if (flash->dual_flash > SF_SINGLE_FLASH) spi_flash_dual_flash(flash, &erase_addr); - +#endif #ifdef CONFIG_SPI_FLASH_BAR ret = spi_flash_bank(flash, erase_addr); if (ret < 0) @@ -298,9 +302,10 @@ int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset, for (actual = 0; actual < len; actual += chunk_len) { write_addr = offset; +#ifdef CONFIG_SF_DUAL_FLASH if (flash->dual_flash > SF_SINGLE_FLASH) spi_flash_dual_flash(flash, &write_addr); - +#endif #ifdef CONFIG_SPI_FLASH_BAR ret = spi_flash_bank(flash, write_addr); if (ret < 0) @@ -383,9 +388,10 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, while (len) { read_addr = offset; +#ifdef CONFIG_SF_DUAL_FLASH if (flash->dual_flash > SF_SINGLE_FLASH) spi_flash_dual_flash(flash, &read_addr); - +#endif #ifdef CONFIG_SPI_FLASH_BAR bank_sel = spi_flash_bank(flash, read_addr); if (bank_sel < 0) diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c index 48de7c1986..bc3cf6cc64 100644 --- a/drivers/mtd/spi/sf_probe.c +++ b/drivers/mtd/spi/sf_probe.c @@ -150,8 +150,10 @@ static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi, flash->page_size = ((ext_jedec == 0x4d00) ? 512 : 256) << flash->shift; flash->sector_size = params->sector_size << flash->shift; flash->size = flash->sector_size * params->nr_sectors << flash->shift; +#ifdef CONFIG_SF_DUAL_FLASH if (flash->dual_flash & SF_DUAL_STACKED_FLASH) flash->size <<= 1; +#endif /* Compute erase sector and command */ if (params->flags & SECT_4K) { |
