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MMC: atmel_mci: enable high speed mode support

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If the MCI IP version >= 0x300, it supports hight speed mode
option, this patch enable it.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
This commit is contained in:
Bo Shen 2014-07-31 14:39:32 +08:00 committed by Pantelis Antoniou
parent 70ec3286e6
commit da55c66ec9
1 changed files with 6 additions and 1 deletions
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7
drivers/mmc/gen_atmel_mci.c
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@ -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;