path: root/drivers/mmc/core/mmc.c
diff options
authorTakashi Iwai <tiwai@suse.de>2010-12-08 10:04:30 +0100
committerChris Ball <cjb@laptop.org>2011-01-08 22:48:04 -0500
commit8f230f454fe04ba326ffaead3a6b88dcf44eaf4b (patch)
tree9f5c43b48aa84131f7b94b44e4d500e0ec271ba0 /drivers/mmc/core/mmc.c
parent150ee73d1b35936aafc5fd3b39a7291b1f66de07 (diff)
mmc: Add support for JMicron 388 SD/MMC controller
JMicron 388 SD/MMC combo controller supports the 1.8V low-voltage for SD, but MMC doesn't work with the low-voltage, resulting in an error at probing. This patch adds the support for multiple voltage mask per device type, so that SD works with 1.8V while MMC forces 3.3V. Here new ocr_avail_* fields for each device are introduced, so that the actual OCR mask is switched dynamically. Also, the restriction of low-voltage in core/sd.c is removed when the bit is allowed explicitly via ocr_avail_sd mask. This patch was rewritten from scratch based on Aries' original code. Signed-off-by: Aries Lee <arieslee@jmicron.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/core/mmc.c')
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 77f93c3b880..76bb621e9aa 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -745,6 +745,8 @@ int mmc_attach_mmc(struct mmc_host *host, u32 ocr)
+ if (host->ocr_avail_mmc)
+ host->ocr_avail = host->ocr_avail_mmc;
* We need to get OCR a different way for SPI.