diff options
| author | Marek Vasut <marek.vasut+renesas@gmail.com> | 2018-01-02 19:40:49 +0100 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2018-04-11 23:11:58 +0200 |
| commit | 635ae6fefa0945fa5361de6f460d3dde93b143f7 (patch) | |
| tree | 2e9a32747dfe2a07d0459d2bba90056c416beab3 /drivers/mmc/matsushita-common.h | |
| parent | 78773f1467336f4d874a6de8e56a5092b786fde5 (diff) | |
mmc: matsushita-common: Handle DMA completion flag differences
The DMA READ completion flag position differs on Socionext and Renesas
SoCs. It is bit 20 on Socionext SoCs and using bit 17 is a hardware bug
and forbidden. It is bit 17 on Renesas SoCs and bit 20 does not work on
them.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers/mmc/matsushita-common.h')
| -rw-r--r-- | drivers/mmc/matsushita-common.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mmc/matsushita-common.h b/drivers/mmc/matsushita-common.h index a10ad202c8..8c81bbcc4b 100644 --- a/drivers/mmc/matsushita-common.h +++ b/drivers/mmc/matsushita-common.h @@ -96,8 +96,8 @@ #define MATSU_SD_DMA_RST_RD BIT(9) #define MATSU_SD_DMA_RST_WR BIT(8) #define MATSU_SD_DMA_INFO1 0x420 -#define MATSU_SD_DMA_INFO1_END_RD2 BIT(20) /* DMA from device is complete*/ -#define MATSU_SD_DMA_INFO1_END_RD BIT(17) /* Don't use! Hardware bug */ +#define MATSU_SD_DMA_INFO1_END_RD2 BIT(20) /* DMA from device is complete (uniphier) */ +#define MATSU_SD_DMA_INFO1_END_RD BIT(17) /* DMA from device is complete (renesas) */ #define MATSU_SD_DMA_INFO1_END_WR BIT(16) /* DMA to device is complete */ #define MATSU_SD_DMA_INFO1_MASK 0x424 #define MATSU_SD_DMA_INFO2 0x428 |