summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorWolfram Sang <wsa+renesas@sang-engineering.com>2017-06-30 12:56:47 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-08-30 14:01:25 +0200
commitc78e1694d005c1bfa4f15dd20ab4a7856a3106f0 (patch)
treeeac49a65d17583d2810aaa7e7e2b06754cc2aeb4 /drivers
parenta43ff82ece7dc50cdd4daafdce9a6d8a6051b55e (diff)
mmc: tmio: add references to bit defines in the header
When defining bits, make sure we always have a reference to the register they belong to. For now, renaming all bits properly seems too intrusive, so at least make sure we have proper documentation. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/host/tmio_mmc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index b161dfadfec2..e3e96178acaa 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -81,9 +81,11 @@
#define TMIO_STAT_CMD_BUSY BIT(30)
#define TMIO_STAT_ILL_ACCESS BIT(31)
+/* Definitions for values the CTL_SD_CARD_CLK_CTL register can take */
#define CLK_CTL_DIV_MASK 0xff
#define CLK_CTL_SCLKEN BIT(8)
+/* Definitions for values the CTL_SD_MEM_CARD_OPT register can take */
#define CARD_OPT_WIDTH8 BIT(13)
#define CARD_OPT_WIDTH BIT(15)