From 83bb24aaa4af2ec7c127cc2a5fa7ca9f64cdd13d Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 13 Mar 2012 05:19:13 -0400 Subject: mmc: core: add high-capacity erase size capability flag Let drivers specify the use of high-capacity erase size. Signed-off-by: Adrian Hunter Signed-off-by: Chris Ball --- drivers/mmc/core/mmc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/mmc/core') diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index d7d8a93c3503..02914d609a91 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -952,7 +952,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, * If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF * bit. This bit will be lost every time after a reset or power off. */ - if (card->ext_csd.enhanced_area_en) { + if (card->ext_csd.enhanced_area_en || + (card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_ERASE_GROUP_DEF, 1, card->ext_csd.generic_cmd6_time); -- cgit v1.2.3