mmc: Add support for the Marvell Dove SDHCI controller (985b1aa0) · Commits · 戴 / test

drivers/mmc/host/Kconfig

+11 −0

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		@@ -140,6 +140,17 @@ config MMC_SDHCI_ESDHC_IMX

		If unsure, say N.

		config MMC_SDHCI_DOVE
		bool "SDHCI support on Marvell's Dove SoC"
		depends on ARCH_DOVE
		depends on MMC_SDHCI_PLTFM
		select MMC_SDHCI_IO_ACCESSORS
		help
		This selects the Secure Digital Host Controller Interface in
		Marvell's Dove SoC.

		If unsure, say N.

		config MMC_SDHCI_S3C
		tristate "SDHCI support on Samsung S3C SoC"
		depends on MMC_SDHCI && PLAT_SAMSUNG

drivers/mmc/host/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,7 @@ obj-$(CONFIG_MMC_SDHCI_PLTFM) += sdhci-platform.o
		sdhci-platform-y := sdhci-pltfm.o
		sdhci-platform-$(CONFIG_MMC_SDHCI_CNS3XXX) += sdhci-cns3xxx.o
		sdhci-platform-$(CONFIG_MMC_SDHCI_ESDHC_IMX) += sdhci-esdhc-imx.o
		sdhci-platform-$(CONFIG_MMC_SDHCI_DOVE) += sdhci-dove.o

		obj-$(CONFIG_MMC_SDHCI_OF) += sdhci-of.o
		sdhci-of-y := sdhci-of-core.o

drivers/mmc/host/sdhci-dove.c

0 → 100644

+70 −0

Original line number	Diff line number	Diff line
		/*
		* sdhci-dove.c Support for SDHCI on Marvell's Dove SoC
		*
		* Author: Saeed Bishara <saeed@marvell.com>
		* Mike Rapoport <mike@compulab.co.il>
		* Based on sdhci-cns3xxx.c
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		*/

		#include <linux/io.h>
		#include <linux/mmc/host.h>

		#include "sdhci.h"
		#include "sdhci-pltfm.h"

		static u16 sdhci_dove_readw(struct sdhci_host *host, int reg)
		{
		u16 ret;

		switch (reg) {
		case SDHCI_HOST_VERSION:
		case SDHCI_SLOT_INT_STATUS:
		/* those registers don't exist */
		return 0;
		default:
		ret = readw(host->ioaddr + reg);
		}
		return ret;
		}

		static u32 sdhci_dove_readl(struct sdhci_host *host, int reg)
		{
		u32 ret;

		switch (reg) {
		case SDHCI_CAPABILITIES:
		ret = readl(host->ioaddr + reg);
		/* Mask the support for 3.0V */
		ret &= ~SDHCI_CAN_VDD_300;
		break;
		default:
		ret = readl(host->ioaddr + reg);
		}
		return ret;
		}

		static struct sdhci_ops sdhci_dove_ops = {
		.read_w = sdhci_dove_readw,
		.read_l = sdhci_dove_readl,
		};

		struct sdhci_pltfm_data sdhci_dove_pdata = {
		.ops = &sdhci_dove_ops,
		.quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER \|
		SDHCI_QUIRK_NO_BUSY_IRQ \|
		SDHCI_QUIRK_BROKEN_TIMEOUT_VAL \|
		SDHCI_QUIRK_FORCE_DMA,
		};

drivers/mmc/host/sdhci-pltfm.c

+3 −0

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		@@ -169,6 +169,9 @@ static const struct platform_device_id sdhci_pltfm_ids[] = {
		#endif
		#ifdef CONFIG_MMC_SDHCI_ESDHC_IMX
		{ "sdhci-esdhc-imx", (kernel_ulong_t)&sdhci_esdhc_imx_pdata },
		#endif
		#ifdef CONFIG_MMC_SDHCI_DOVE
		{ "sdhci-dove", (kernel_ulong_t)&sdhci_dove_pdata },
		#endif
		{ },
		};

drivers/mmc/host/sdhci-pltfm.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -22,5 +22,6 @@ struct sdhci_pltfm_host {

		extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata;
		extern struct sdhci_pltfm_data sdhci_esdhc_imx_pdata;
		extern struct sdhci_pltfm_data sdhci_dove_pdata;

		#endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */

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