spl for OMAP4 does not use mmc read/write.
Add CONFIG_MMC_NO_ERASE, CONFIG_MMC_NO_WRITE to platforms where mmc
write/erase operation is not needed in spl.
Use these CONFIGS to remove write/erase code in mmc.c and omap_hsmmc.c
This reduces the spl size by ~1128 Bytes
Signed-off-by: Balaji T K <balaj...@ti.com>
---
drivers/mmc/mmc.c | 17 +++++++++++++++++
drivers/mmc/omap_hsmmc.c | 2 ++
include/configs/omap4_common.h | 4 ++++
3 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 21665ec..852c896 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -31,6 +31,7 @@
#include <malloc.h>
#include <linux/list.h>
#include <div64.h>
+#include <asm/errno.h>
/* Set block count limit because of 16 bit register limit on some hardware*/
#ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
@@ -175,6 +176,7 @@ struct mmc *find_mmc_device(int dev_num)
return NULL;
}
+#ifndef CONFIG_MMC_NO_ERASE
static ulong mmc_erase_t(struct mmc *mmc, ulong start, lbaint_t blkcnt)
{
struct mmc_cmd cmd;
@@ -256,7 +258,15 @@ mmc_berase(int dev_num, unsigned long start, lbaint_t
blkcnt)
return blk;
}
+#else
+static unsigned long
+mmc_berase(int dev_num, unsigned long start, lbaint_t blkcnt)
+{
+ return -ENOSYS;
+}
+#endif
+#ifndef CONFIG_MMC_NO_WRITE
static ulong
mmc_write_blocks(struct mmc *mmc, ulong start, lbaint_t blkcnt, const void*src)
{
@@ -336,6 +346,13 @@ mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt,
const void*src)
return blkcnt;
}
+#else
+static ulong
+mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt, const void *src)
+{
+ return -ENOSYS;
+}
+#endif
int mmc_read_blocks(struct mmc *mmc, void *dst, ulong start, lbaint_t blkcnt)
{
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c
index c38b9e6..ce36481 100644
--- a/drivers/mmc/omap_hsmmc.c
+++ b/drivers/mmc/omap_hsmmc.c
@@ -360,6 +360,7 @@ static int mmc_read_data(struct hsmmc *mmc_base, char *buf,
unsigned int size)
static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
unsigned int size)
{
+#ifndef CONFIG_MMC_NO_WRITE
unsigned int *input_buf = (unsigned int *)buf;
unsigned int mmc_stat;
unsigned int count;
@@ -406,6 +407,7 @@ static int mmc_write_data(struct hsmmc *mmc_base, const
char *buf,
break;
}
}
+#endif
return 0;
}
diff --git a/include/configs/omap4_common.h b/include/configs/omap4_common.h
index a989721..0ae2ab3 100644
--- a/include/configs/omap4_common.h
+++ b/include/configs/omap4_common.h
@@ -109,6 +109,10 @@
#define CONFIG_SYS_MMC_SET_DEV 1
#define CONFIG_DOS_PARTITION 1
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_MMC_NO_WRITE 1
+#define CONFIG_MMC_NO_ERASE 1
+#endif
/* USB */
#define CONFIG_MUSB_UDC 1
--
1.7.0.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
