sf: add struct spi_flash.sector_size parameter

This patch adds a new member to struct spi_flash (u16 sector_size)
and updates the spi flash drivers to start populating it.

This parameter can be used by spi flash commands that need to round
up units of operation to the flash's sector_size.

Having this number in one place also allows duplicated code to be
further collapsed into one common location (such as erase parameter
and the detected message).

Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/drivers/mtd/spi/atmel.c b/drivers/mtd/spi/atmel.c
index 10df387..d17ebf6 100644 (file)
--- a/drivers/mtd/spi/atmel.c
+++ b/drivers/mtd/spi/atmel.c
@@ -522,14 +522,11 @@ struct spi_flash *spi_flash_probe_atmel(struct spi_slave *spi, u8 *idcode)
                goto err;
        }
 
+       asf->flash.sector_size = page_size;
        asf->flash.size = page_size * params->pages_per_block
                                * params->blocks_per_sector
                                * params->nr_sectors;
 
-       printf("SF: Detected %s with page size %u, total ",
-              params->name, page_size);
-       print_size(asf->flash.size, "\n");
-
        return &asf->flash;
 
 err:

diff --git a/drivers/mtd/spi/eon.c b/drivers/mtd/spi/eon.c
index 01caed5..a3640f4 100644 (file)
--- a/drivers/mtd/spi/eon.c
+++ b/drivers/mtd/spi/eon.c
@@ -121,11 +121,7 @@ static int eon_write(struct spi_flash *flash,
 
 int eon_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
-       struct eon_spi_flash *eon = to_eon_spi_flash(flash);
-       return spi_flash_cmd_erase(flash, CMD_EN25Q128_BE,
-               eon->params->page_size * eon->params->pages_per_sector *
-                       eon->params->sectors_per_block;
-               offset, len);
+       return spi_flash_cmd_erase(flash, CMD_EN25Q128_BE, offset, len);
 }
 
 struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
@@ -158,11 +154,10 @@ struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
        eon->flash.write = eon_write;
        eon->flash.erase = eon_erase;
        eon->flash.read = spi_flash_cmd_read_fast;
+       eon->flash.sector_size = params->page_size * params->pages_per_sector
+           * params->sectors_per_block;
        eon->flash.size = params->page_size * params->pages_per_sector
            * params->nr_sectors;
 
-       debug("SF: Detected %s with page size %u, total %u bytes\n",
-             params->name, params->page_size, eon->flash.size);
-
        return &eon->flash;
 }

diff --git a/drivers/mtd/spi/macronix.c b/drivers/mtd/spi/macronix.c
index 4155d4d..a0512d1 100644 (file)
--- a/drivers/mtd/spi/macronix.c
+++ b/drivers/mtd/spi/macronix.c
@@ -177,11 +177,7 @@ static int macronix_write(struct spi_flash *flash,
 
 int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
-       struct macronix_spi_flash *mcx = to_macronix_spi_flash(flash);
-       return spi_flash_cmd_erase(flash, CMD_MX25XX_BE,
-               mcx->params->page_size * mcx->params->pages_per_sector *
-                       mcx->params->sectors_per_block,
-               offset, len);
+       return spi_flash_cmd_erase(flash, CMD_MX25XX_BE, offset, len);
 }
 
 struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
@@ -215,12 +211,9 @@ struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
        mcx->flash.write = macronix_write;
        mcx->flash.erase = macronix_erase;
        mcx->flash.read = spi_flash_cmd_read_fast;
-       mcx->flash.size = params->page_size * params->pages_per_sector
-           * params->sectors_per_block * params->nr_blocks;
-
-       printf("SF: Detected %s with page size %u, total ",
-              params->name, params->page_size);
-       print_size(mcx->flash.size, "\n");
+       mcx->flash.sector_size = params->page_size * params->pages_per_sector
+               * params->sectors_per_block;
+       mcx->flash.size = mcx->flash.sector_size * params->nr_blocks;
 
        return &mcx->flash;
 }

diff --git a/drivers/mtd/spi/ramtron.c b/drivers/mtd/spi/ramtron.c
index 171390d..453dd3f 100644 (file)
--- a/drivers/mtd/spi/ramtron.c
+++ b/drivers/mtd/spi/ramtron.c
@@ -312,8 +312,5 @@ found:
        sn->flash.erase = ramtron_erase;
        sn->flash.size = params->size;
 
-       printf("SF: Detected %s with size ", params->name);
-       print_size(sn->flash.size, "\n");
-
        return &sn->flash;
 }

diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c
index d54a5fa..f138d73 100644 (file)
--- a/drivers/mtd/spi/spansion.c
+++ b/drivers/mtd/spi/spansion.c
@@ -198,10 +198,7 @@ static int spansion_write(struct spi_flash *flash,
 
 int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
-       struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash);
-       return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE,
-               spsn->params->page_size * spsn->params->pages_per_sector,
-               offset, len);
+       return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE, offset, len);
 }
 
 struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
@@ -240,12 +237,8 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
        spsn->flash.write = spansion_write;
        spsn->flash.erase = spansion_erase;
        spsn->flash.read = spi_flash_cmd_read_fast;
-       spsn->flash.size = params->page_size * params->pages_per_sector
-           * params->nr_sectors;
-
-       printf("SF: Detected %s with page size %u, total ",
-              params->name, params->page_size);
-       print_size(spsn->flash.size, "\n");
+       spsn->flash.sector_size = params->page_size * params->pages_per_sector;
+       spsn->flash.size = spsn->flash.sector_size * params->nr_sectors;
 
        return &spsn->flash;
 }

diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 5c261f1..ccb7e31 100644 (file)
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -131,12 +131,13 @@ int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout)
 }
 
 int spi_flash_cmd_erase(struct spi_flash *flash, u8 erase_cmd,
-                       u32 erase_size, u32 offset, size_t len)
+                       u32 offset, size_t len)
 {
-       u32 start, end;
+       u32 start, end, erase_size;
        int ret;
        u8 cmd[4];
 
+       erase_size = flash->sector_size;
        if (offset % erase_size || len % erase_size) {
                debug("SF: Erase offset/length not multiple of erase size\n");
                return -1;
@@ -296,6 +297,10 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
                goto err_manufacturer_probe;
        }
 
+       printf("SF: Detected %s with page size %u, total ",
+              flash->name, flash->sector_size);
+       print_size(flash->size, "\n");
+
        spi_release_bus(spi);
 
        return flash;

diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h
index d7bcd6d..fc109ce 100644 (file)
--- a/drivers/mtd/spi/spi_flash_internal.h
+++ b/drivers/mtd/spi/spi_flash_internal.h
@@ -64,7 +64,7 @@ int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout);
 
 /* Erase sectors. */
 int spi_flash_cmd_erase(struct spi_flash *flash, u8 erase_cmd,
-                       u32 erase_size, u32 offset, size_t len);
+                       u32 offset, size_t len);
 
 /* Manufacturer-specific probe functions */
 struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode);

diff --git a/drivers/mtd/spi/sst.c b/drivers/mtd/spi/sst.c
index 792d04d..29bb88b 100644 (file)
--- a/drivers/mtd/spi/sst.c
+++ b/drivers/mtd/spi/sst.c
@@ -201,8 +201,7 @@ sst_write(struct spi_flash *flash, u32 offset, size_t len, const void *buf)
 
 int sst_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
-       return spi_flash_cmd_erase(flash, CMD_SST_SE, SST_SECTOR_SIZE,
-               offset, len);
+       return spi_flash_cmd_erase(flash, CMD_SST_SE, offset, len);
 }
 
 static int
@@ -256,11 +255,8 @@ spi_flash_probe_sst(struct spi_slave *spi, u8 *idcode)
 
        stm->flash.write = sst_write;
        stm->flash.erase = sst_erase;
-       stm->flash.size = SST_SECTOR_SIZE * params->nr_sectors;
-
-       printf("SF: Detected %s with page size %u, total ",
-              params->name, SST_SECTOR_SIZE);
-       print_size(stm->flash.size, "\n");
+       stm->flash.sector_size = SST_SECTOR_SIZE;
+       stm->flash.size = stm->flash.sector_size * params->nr_sectors;
 
        /* Flash powers up read-only, so clear BP# bits */
        sst_unlock(&stm->flash);

diff --git a/drivers/mtd/spi/stmicro.c b/drivers/mtd/spi/stmicro.c
index 7ef690d..a1980b1 100644 (file)
--- a/drivers/mtd/spi/stmicro.c
+++ b/drivers/mtd/spi/stmicro.c
@@ -199,10 +199,7 @@ static int stmicro_write(struct spi_flash *flash,
 
 int stmicro_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
-       struct stmicro_spi_flash *stm = to_stmicro_spi_flash(flash);
-       return spi_flash_cmd_erase(flash, CMD_M25PXX_SE,
-               stm->params->page_size * stm->params->pages_per_sector,
-               offset, len);
+       return spi_flash_cmd_erase(flash, CMD_M25PXX_SE, offset, len);
 }
 
 struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
@@ -249,12 +246,8 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
        stm->flash.write = stmicro_write;
        stm->flash.erase = stmicro_erase;
        stm->flash.read = spi_flash_cmd_read_fast;
-       stm->flash.size = params->page_size * params->pages_per_sector
-           * params->nr_sectors;
-
-       printf("SF: Detected %s with page size %u, total ",
-              params->name, params->page_size);
-       print_size(stm->flash.size, "\n");
+       stm->flash.sector_size = params->page_size * params->pages_per_sector;
+       stm->flash.size = stm->flash.sector_size * params->nr_sectors;
 
        return &stm->flash;
 }

diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c
index e88802f..72d94ad 100644 (file)
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -172,10 +172,7 @@ out:
 
 int winbond_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
-       struct winbond_spi_flash *stm = to_winbond_spi_flash(flash);
-       return spi_flash_cmd_erase(flash, CMD_W25_SE,
-               (1 << stm->params->l2_page_size) * stm->params->pages_per_sector,
-               offset, len);
+       return spi_flash_cmd_erase(flash, CMD_W25_SE, offset, len);
 }
 
 struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
@@ -213,13 +210,11 @@ struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
        stm->flash.write = winbond_write;
        stm->flash.erase = winbond_erase;
        stm->flash.read = spi_flash_cmd_read_fast;
+       stm->flash.sector_size = (1 << stm->params->l2_page_size) *
+               stm->params->pages_per_sector;
        stm->flash.size = page_size * params->pages_per_sector
                                * params->sectors_per_block
                                * params->nr_blocks;
 
-       printf("SF: Detected %s with page size %u, total ",
-              params->name, page_size);
-       print_size(stm->flash.size, "\n");
-
        return &stm->flash;
 }

diff --git a/include/spi_flash.h b/include/spi_flash.h
index 89cc3a7..a384071 100644 (file)
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -33,6 +33,8 @@ struct spi_flash {
 
        u32             size;
 
+       u32             sector_size;
+
        int             (*read)(struct spi_flash *flash, u32 offset,
                                size_t len, void *buf);
        int             (*write)(struct spi_flash *flash, u32 offset,