diff options
| author | Zeng Zhaoming <b32542@freescale.com> | 2011-06-24 09:26:28 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-01-09 20:18:26 +0800 |
| commit | 56940caa49520dcc53ff8a26c4b495f434f46f83 (patch) | |
| tree | a7f4ddcccaf243a8cf41a3aa5d3e5134acd094ff /drivers/mmc/host | |
| parent | a1a9d22163e54eea87e885ce8e58bb4a4ac08901 (diff) | |
ENGR00139229-4 SDHC: Add SDHC support for i.MX6
Add sdhc support to make it easy mount rootfs from SD card.
Merge from imx6_bringup branch.
Signed-off-by: Anish Trivedi <anish@freescale.com>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Richard Zhu <r65037@freescale.com>
Merged-by: Zeng Zhaoming <b32542@freescale.com>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 14 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc.h | 2 |
3 files changed, 14 insertions, 4 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 56dbf3f6ad08..64aac7898334 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -134,7 +134,7 @@ config MMC_SDHCI_CNS3XXX config MMC_SDHCI_ESDHC_IMX bool "SDHCI platform support for the Freescale eSDHC i.MX controller" - depends on MMC_SDHCI_PLTFM && (ARCH_MX25 || ARCH_MX35 || ARCH_MX5) + depends on MMC_SDHCI_PLTFM && (ARCH_MX25 || ARCH_MX35 || ARCH_MX5 || ARCH_MX6) select MMC_SDHCI_IO_ACCESSORS help This selects the Freescale eSDHC controller support on the platform diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index ce56d3ffab77..2204c65b02e1 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -30,6 +30,7 @@ /* VENDOR SPEC register */ #define SDHCI_VENDOR_SPEC 0xC0 #define SDHCI_VENDOR_SPEC_SDIO_QUIRK 0x00000002 +#define SDHCI_MIX_CTRL 0x48 #define ESDHC_FLAG_GPIO_FOR_CD_WP (1 << 0) /* @@ -142,8 +143,17 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) if ((host->cmd->opcode == MMC_STOP_TRANSMISSION) && (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)) val |= SDHCI_CMD_ABORTCMD; - writel(val << 16 | imx_data->scratchpad, - host->ioaddr + SDHCI_TRANSFER_MODE); + + writel(0x08800880, host->ioaddr + SDHCI_CAPABILITIES_1); + if (cpu_is_mx6q()) { + writel(imx_data->scratchpad, + host->ioaddr + SDHCI_MIX_CTRL); + writel(val << 16, + host->ioaddr + SDHCI_TRANSFER_MODE); + } else { + writel(val << 16 | imx_data->scratchpad, + host->ioaddr + SDHCI_TRANSFER_MODE); + } return; case SDHCI_BLOCK_SIZE: val &= ~SDHCI_MAKE_BLKSZ(0x7, 0); diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h index c3b08f111942..02ff6da7ccab 100644 --- a/drivers/mmc/host/sdhci-esdhc.h +++ b/drivers/mmc/host/sdhci-esdhc.h @@ -1,7 +1,7 @@ /* * Freescale eSDHC controller driver generics for OF and pltfm. * - * Copyright (c) 2007 Freescale Semiconductor, Inc. + * Copyright (C) 2007, 2011 Freescale Semiconductor, Inc. * Copyright (c) 2009 MontaVista Software, Inc. * Copyright (c) 2010 Pengutronix e.K. * Author: Wolfram Sang <w.sang@pengutronix.de> |