summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorSimon Horman <horms@verge.net.au>2011-06-21 08:00:08 +0900
committerChris Ball <cjb@laptop.org>2011-07-20 17:20:55 -0400
commit95c7348d948dc4832434ddfaeba804ac14732f02 (patch)
treef1795c7d0ad42672d0884430f070f2cdaeed07f2
parent4c2b8f26eb8b54203e0e7834e0f7a11a7ae15ef1 (diff)
mmc: tmio: name 0xd8 as CTL_DMA_ENABLE
This reflects at least the current usage of this register and I think it improves the readability of the code ever so slightly. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
-rw-r--r--drivers/mmc/host/tmio_mmc_dma.c2
-rw-r--r--include/linux/mmc/tmio.h1
2 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 25f1ad6cbe09..9c4da6637503 100644
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -26,7 +26,7 @@ static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
{
#if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
/* Switch DMA mode on or off - SuperH specific? */
- writew(enable ? 2 : 0, host->ctl + (0xd8 << host->bus_shift));
+ writew(enable ? 2 : 0, host->ctl + (CTL_DMA_ENABLE << host->bus_shift));
#endif
}
diff --git a/include/linux/mmc/tmio.h b/include/linux/mmc/tmio.h
index 551490f0613d..3ae377623db0 100644
--- a/include/linux/mmc/tmio.h
+++ b/include/linux/mmc/tmio.h
@@ -30,6 +30,7 @@
#define CTL_TRANSACTION_CTL 0x34
#define CTL_SDIO_STATUS 0x36
#define CTL_SDIO_IRQ_MASK 0x38
+#define CTL_DMA_ENABLE 0xd8
#define CTL_RESET_SD 0xe0
#define CTL_SDIO_REGS 0x100
#define CTL_CLK_AND_WAIT_CTL 0x138