Hello.

On 14-11-2013 14:31, Kuninori Morimoto wrote:

One of Renesas SDHI chip needs workaround to use it,
and, we can judge it based on chip version.
This patch adds very quick-hack workaround method,
since we still don't know how many chips
need workaround in the future.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
---
  drivers/mmc/host/sh_mobile_sdhi.c |   11 +++++++++++
  include/linux/mmc/tmio.h          |    1 +
  2 files changed, 12 insertions(+)

diff --git a/drivers/mmc/host/sh_mobile_sdhi.c 
b/drivers/mmc/host/sh_mobile_sdhi.c
index f1e35a7..d241d86 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -33,6 +33,8 @@

  #include "tmio_mmc.h"

+#define EXT_ACC           0xe4
+

Why not #define it in the tmio.h? It already contains SDHI specific register, CTL_DMA_ENABLE...

[...]
diff --git a/include/linux/mmc/tmio.h b/include/linux/mmc/tmio.h
index a1c1f32..84d9053 100644
--- a/include/linux/mmc/tmio.h
+++ b/include/linux/mmc/tmio.h
@@ -33,6 +33,7 @@
  #define CTL_SDIO_IRQ_MASK 0x38
  #define CTL_DMA_ENABLE 0xd8
  #define CTL_RESET_SD 0xe0
+#define CTL_VERSION 0xe2
  #define CTL_SDIO_REGS 0x100
  #define CTL_CLK_AND_WAIT_CTL 0x138
  #define CTL_RESET_SDIO 0x1e0

WBR, Sergei

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