From da55c66ec92c962435175cf0b4f4d61732ca3ebf Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Thu, 31 Jul 2014 14:39:32 +0800 Subject: [PATCH] MMC: atmel_mci: enable high speed mode support If the MCI IP version >= 0x300, it supports hight speed mode option, this patch enable it. Signed-off-by: Bo Shen Acked-by: Pantelis Antoniou --- drivers/mmc/gen_atmel_mci.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/gen_atmel_mci.c b/drivers/mmc/gen_atmel_mci.c index 8778a4d..45bcffb 100644 --- a/drivers/mmc/gen_atmel_mci.c +++ b/drivers/mmc/gen_atmel_mci.c @@ -110,6 +110,9 @@ static void mci_set_mode(struct mmc *mmc, u32 hz, u32 blklen) if (version >= 0x200) writel(MMCI_BF(BLKLEN, blklen), &mci->blkr); + if (mmc->card_caps & mmc->cfg->host_caps & MMC_MODE_HS) + writel(MMCI_BIT(HSMODE), &mci->cfg); + initialized = 1; } @@ -404,8 +407,10 @@ int atmel_mci_init(void *regs) /* need to be able to pass these in on a board by board basis */ cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34; version = atmel_mci_get_version(mci); - if ((version & 0xf00) >= 0x300) + if ((version & 0xf00) >= 0x300) { cfg->host_caps = MMC_MODE_8BIT; + cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz; + } cfg->host_caps |= MMC_MODE_4BIT; -- 1.9.1