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mmc: core: fix the decision of HS200/DDR card-type

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Current implementation decides the card type exclusively. Even though
eMMC device can support both HS200 and DDR mode, card type will be
set only for HS200. If the host doesn't support HS200 but has DDR
capability, then DDR mode can't be selected.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Seungwon Jeon
2012-04-25 16:17:37 +09:00
committed by Chris Ball
parent c0a120a4bc
commit 96cf5f02ae
3 changed files with 36 additions and 109 deletions
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4
include/linux/mmc/card.h
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@@ -58,6 +58,10 @@ struct mmc_ext_csd {
unsigned int generic_cmd6_time; /* Units: 10ms */
unsigned int power_off_longtime; /* Units: ms */
unsigned int hs_max_dtr;
#define MMC_HIGH_26_MAX_DTR 26000000
#define MMC_HIGH_52_MAX_DTR 52000000
#define MMC_HIGH_DDR_MAX_DTR 52000000
#define MMC_HS200_MAX_DTR 200000000
unsigned int sectors;
unsigned int card_type;
unsigned int hc_erase_size; /* In sectors */