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drivers/mmc: make mmc_ext_csd aligned with 16 char

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DMA is always used in mmc driver. So the buffer address should
always follow the DMA limitation.

There're same requirement in mmc_read_blocks()/mmc_write_blocks()
on parameter buf. Since parameter buf comes from io_block driver,
it's already handled in io_block driver.

At here, just make the minimum address alignment on 16 chars.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
This commit is contained in:
Haojian Zhuang 2018-08-02 14:50:12 +08:00
parent ea315a69de
commit 07858dd809
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/mmc.c
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@ -24,7 +24,7 @@
static const struct mmc_ops *ops;
static unsigned int mmc_ocr_value;
static struct mmc_csd_emmc mmc_csd;
static unsigned char mmc_ext_csd[512] __aligned(4);
static unsigned char mmc_ext_csd[512] __aligned(16);
static unsigned int mmc_flags;
static struct mmc_device_info *mmc_dev_info;
static unsigned int rca;