From: Seungwon Jeon <tgih.jun@samsung.com>
To: linux-mmc@vger.kernel.org, cjb@laptop.org
Cc: linux-kernel@vger.kernel.org, Seungwon Jeon <tgih.jun@samsung.com>
Subject: [PATCH] mmc: dw_mmc: Fix DDR mode support.
Date: Fri, 5 Aug 2011 12:35:03 +0900 [thread overview]
Message-ID: <1312515303-17169-1-git-send-email-tgih.jun@samsung.com> (raw)
Host driver can't get a hint of DDR mode through ios->ddr flag anymore.
ios->timing is currently used to inform DDR mode as a substitute.
And capability of MMC_CAP_MMC_HIGHSPEED is added for DDR support.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
---
drivers/mmc/host/dw_mmc.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index d65511e..b412a1d 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -699,7 +699,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
/* DDR mode set */
- if (ios->ddr) {
+ if (ios->timing == MMC_TIMING_UHS_DDR50) {
regs = mci_readl(slot->host, UHS_REG);
regs |= (0x1 << slot->id) << 16;
mci_writel(slot->host, UHS_REG, regs);
@@ -1646,7 +1646,7 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
mmc->caps |= MMC_CAP_4_BIT_DATA;
if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED)
- mmc->caps |= MMC_CAP_SD_HIGHSPEED;
+ mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
#ifdef CONFIG_MMC_DW_IDMAC
mmc->max_segs = host->ring_size;
--
1.7.0.4
next reply other threads:[~2011-08-05 3:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-05 3:35 Seungwon Jeon [this message]
2011-08-05 10:20 ` Will Newton
2011-08-05 21:35 ` Jae hoon Chung
2011-08-08 1:38 ` Seungwon Jeon
2011-08-11 21:38 ` Chris Ball
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