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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2020-03-30 07:24:17 +0200
committerPeng Fan <peng.fan@nxp.com>2020-04-22 20:41:54 +0800
commit1601ea212623c9bdb479636bec9e7299b0cb14dd (patch)
tree56f0be024d5b1337e74fb8d927224e0ee4feec14 /include
parent9abfe33d10ef80c4d99c1d2b23e434a043866f13 (diff)
downloadu-boot-1601ea212623c9bdb479636bec9e7299b0cb14dd.tar.gz
mmc: export mmc_send_ext_csd()
Export function mmc_send_ext_csd() for reading the extended CSD register. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'include')
-rw-r--r--include/mmc.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h
index 4ecd6c744c..85fc3497a1 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -896,6 +896,17 @@ int mmc_get_env_dev(void);
*/
struct blk_desc *mmc_get_blk_desc(struct mmc *mmc);
+/**
+ * mmc_send_ext_csd() - read the extended CSD register
+ *
+ * @mmc: MMC device
+ * @ext_csd a cache aligned buffer of length MMC_MAX_BLOCK_LEN allocated by
+ * the caller, e.g. using
+ * ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN)
+ * Return: 0 for success
+ */
+int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd);
+
static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data)
{
return data->flags & MMC_DATA_WRITE ? DMA_TO_DEVICE : DMA_FROM_DEVICE;