MMC: make b_max unconditional

Make existing field b_max field in struct mmc unconditional
and use it instead of CONFIG_SYS_MMC_MAX_BLK_COUNT in mmc_bread
and mmc_bwrite.

Initialize b_max to CONFIG_SYS_MMC_MAX_BLK_COUNT in mmc_register
if it has not been initialized by the hw driver.

Initialize b_max to 0 in all callers to mmc_register.

Signed-off-by: John Rigby <john.rigby@linaro.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>

diff --git a/drivers/mmc/arm_pl180_mmci.c b/drivers/mmc/arm_pl180_mmci.c
index 245f482..ed296ee 100644 (file)
--- a/drivers/mmc/arm_pl180_mmci.c
+++ b/drivers/mmc/arm_pl180_mmci.c
@@ -434,6 +434,8 @@ int arm_pl180_mmci_init(void)
                return -1;
        }
 
+       dev->b_max = 0;
+
        mmc_register(dev);
        debug("registered mmc interface number is:%d\n", dev->block_dev.dev);
 

diff --git a/drivers/mmc/bfin_sdh.c b/drivers/mmc/bfin_sdh.c
index 31b6459..bc9057f 100644 (file)
--- a/drivers/mmc/bfin_sdh.c
+++ b/drivers/mmc/bfin_sdh.c
@@ -257,6 +257,8 @@ int bfin_mmc_init(bd_t *bis)
        mmc->f_min = mmc->f_max >> 9;
        mmc->block_dev.part_type = PART_TYPE_DOS;
 
+       mmc->b_max = 0;
+
        mmc_register(mmc);
 
        return 0;

diff --git a/drivers/mmc/davinci_mmc.c b/drivers/mmc/davinci_mmc.c
index d5d19eb..5d918e6 100644 (file)
--- a/drivers/mmc/davinci_mmc.c
+++ b/drivers/mmc/davinci_mmc.c
@@ -394,9 +394,8 @@ int davinci_mmc_init(bd_t *bis, struct davinci_mmc *host)
        mmc->voltages = host->voltages;
        mmc->host_caps = host->host_caps;
 
-#ifdef CONFIG_MMC_MBLOCK
        mmc->b_max = DAVINCI_MAX_BLOCKS;
-#endif
+
        mmc_register(mmc);
 
        return 0;

diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c
index 2984d64..6577925 100644 (file)
--- a/drivers/mmc/gen_atmel_mci.c
+++ b/drivers/mmc/gen_atmel_mci.c
@@ -348,6 +348,8 @@ int atmel_mci_init(void *regs)
        mmc->f_min = get_mci_clk_rate() / (2*256);
        mmc->f_max = get_mci_clk_rate() / (2*1);
 
+       mmc->b_max = 0;
+
        mmc_register(mmc);
 
        return 0;

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index f27b7c7..f6d31f5 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -243,8 +243,7 @@ mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt, const void*src)
                return 0;
 
        do {
-               cur = (blocks_todo > CONFIG_SYS_MMC_MAX_BLK_COUNT) ?
-                      CONFIG_SYS_MMC_MAX_BLK_COUNT : blocks_todo;
+               cur = (blocks_todo > mmc->b_max) ?  mmc->b_max : blocks_todo;
                if(mmc_write_blocks(mmc, start, cur, src) != cur)
                        return 0;
                blocks_todo -= cur;
@@ -320,8 +319,7 @@ static ulong mmc_bread(int dev_num, ulong start, lbaint_t blkcnt, void *dst)
                return 0;
 
        do {
-               cur = (blocks_todo > CONFIG_SYS_MMC_MAX_BLK_COUNT) ?
-                      CONFIG_SYS_MMC_MAX_BLK_COUNT : blocks_todo;
+               cur = (blocks_todo > mmc->b_max) ?  mmc->b_max : blocks_todo;
                if(mmc_read_blocks(mmc, dst, start, cur) != cur)
                        return 0;
                blocks_todo -= cur;
@@ -1029,6 +1027,8 @@ int mmc_register(struct mmc *mmc)
        mmc->block_dev.removable = 1;
        mmc->block_dev.block_read = mmc_bread;
        mmc->block_dev.block_write = mmc_bwrite;
+       if (!mmc->b_max)
+               mmc->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
 
        INIT_LIST_HEAD (&mmc->link);
 

diff --git a/drivers/mmc/mxcmmc.c b/drivers/mmc/mxcmmc.c
index 5963953..ab1fc82 100644 (file)
--- a/drivers/mmc/mxcmmc.c
+++ b/drivers/mmc/mxcmmc.c
@@ -511,6 +511,8 @@ static int mxcmci_initialize(bd_t *bis)
        mmc->f_min = imx_get_perclk2() >> 7;
        mmc->f_max = imx_get_perclk2() >> 1;
 
+       mmc->b_max = 0;
+
        mmc_register(mmc);
 
        return 0;

diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index 6f2280a..dcbde89 100644 (file)
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -465,6 +465,8 @@ int omap_mmc_init(int dev_index)
        mmc->f_min = 400000;
        mmc->f_max = 52000000;
 
+       mmc->b_max = 0;
+
        mmc_register(mmc);
 
        return 0;

diff --git a/drivers/mmc/s5p_mmc.c b/drivers/mmc/s5p_mmc.c
index 0323800..668c28b 100644 (file)
--- a/drivers/mmc/s5p_mmc.c
+++ b/drivers/mmc/s5p_mmc.c
@@ -466,6 +466,7 @@ static int s5p_mmc_initialize(int dev_index, int bus_width)
 
        mmc_host[dev_index].clock = 0;
        mmc_host[dev_index].reg = s5p_get_base_mmc(dev_index);
+       mmc->m_bmax = 0;
        mmc_register(mmc);
 
        return 0;

diff --git a/include/mmc.h b/include/mmc.h
index e0a56d9..b4197a7 100644 (file)
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -283,9 +283,7 @@ struct mmc {
                        struct mmc_cmd *cmd, struct mmc_data *data);
        void (*set_ios)(struct mmc *mmc);
        int (*init)(struct mmc *mmc);
-#ifdef CONFIG_MMC_MBLOCK
        uint b_max;
-#endif
 };
 
 int mmc_register(struct mmc *mmc);