diff options
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/Kconfig | 13 | ||||
| -rw-r--r-- | drivers/mmc/host/Makefile | 9 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 53 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-of-hlwd.c | 50 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-of.h | 33 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-pltfm.c | 111 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-pltfm.h | 12 |
7 files changed, 227 insertions, 54 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index d9ca2623038d..ee4ac77b0eae 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -81,18 +81,9 @@ config MMC_RICOH_MMC If unsure, say Y. -config MMC_SDHCI_OF - tristate "SDHCI support on OpenFirmware platforms" - depends on MMC_SDHCI && OF - help - This selects the OF support for Secure Digital Host Controller - Interfaces. - - If unsure, say N. - config MMC_SDHCI_OF_ESDHC bool "SDHCI OF support for the Freescale eSDHC controller" - depends on MMC_SDHCI_OF + depends on MMC_SDHCI depends on PPC_OF select MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER help @@ -102,7 +93,7 @@ config MMC_SDHCI_OF_ESDHC config MMC_SDHCI_OF_HLWD bool "SDHCI OF support for the Nintendo Wii SDHCI controllers" - depends on MMC_SDHCI_OF + depends on MMC_SDHCI depends on PPC_OF select MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER help diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index 732ec1e2a3d0..cbd89c310146 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -52,11 +52,10 @@ obj-$(CONFIG_MMC_SDHCI_DOVE) += sdhci-dove.o sdhci-dove-objs := sdhci-pltfm.o obj-$(CONFIG_MMC_SDHCI_TEGRA) += sdhci-tegra.o sdhci-tegra-objs := sdhci-pltfm.o - -obj-$(CONFIG_MMC_SDHCI_OF) += sdhci-of.o -sdhci-of-y := sdhci-of-core.o -sdhci-of-$(CONFIG_MMC_SDHCI_OF_ESDHC) += sdhci-of-esdhc.o -sdhci-of-$(CONFIG_MMC_SDHCI_OF_HLWD) += sdhci-of-hlwd.o +obj-$(CONFIG_MMC_SDHCI_OF_ESDHC) += sdhci-of-esdhc.o +sdhci-of-esdhc-objs := sdhci-pltfm.o +obj-$(CONFIG_MMC_SDHCI_OF_HLWD) += sdhci-of-hlwd.o +sdhci-of-hlwd-objs := sdhci-pltfm.o ifeq ($(CONFIG_CB710_DEBUG),y) CFLAGS-cb710-mmc += -DDEBUG diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 492bcd72180a..2db6a455d839 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -16,7 +16,7 @@ #include <linux/io.h> #include <linux/delay.h> #include <linux/mmc/host.h> -#include "sdhci-of.h" +#include "sdhci-pltfm.h" #include "sdhci.h" #include "sdhci-esdhc.h" @@ -85,9 +85,58 @@ static struct sdhci_ops sdhci_esdhc_ops = { .get_min_clock = esdhc_of_get_min_clock, }; -struct sdhci_pltfm_data sdhci_esdhc_pdata = { +static struct sdhci_pltfm_data sdhci_esdhc_pdata = { /* card detection could be handled via GPIO */ .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION | SDHCI_QUIRK_NO_CARD_NO_RESET, .ops = &sdhci_esdhc_ops, }; + +static int __devinit sdhci_esdhc_probe(struct platform_device *pdev) +{ + return sdhci_pltfm_register(pdev, &sdhci_esdhc_pdata); +} + +static int __devexit sdhci_esdhc_remove(struct platform_device *pdev) +{ + return sdhci_pltfm_unregister(pdev); +} + +static const struct of_device_id sdhci_esdhc_of_match[] = { + { .compatible = "fsl,mpc8379-esdhc" }, + { .compatible = "fsl,mpc8536-esdhc" }, + { .compatible = "fsl,esdhc" }, + { } +}; +MODULE_DEVICE_TABLE(of, sdhci_esdhc_of_match); + +static struct platform_driver sdhci_esdhc_driver = { + .driver = { + .name = "sdhci-esdhc", + .owner = THIS_MODULE, + .of_match_table = sdhci_esdhc_of_match, + }, + .probe = sdhci_esdhc_probe, + .remove = __devexit_p(sdhci_esdhc_remove), +#ifdef CONFIG_PM + .suspend = sdhci_pltfm_suspend, + .resume = sdhci_pltfm_resume, +#endif +}; + +static int __init sdhci_esdhc_init(void) +{ + return platform_driver_register(&sdhci_esdhc_driver); +} +module_init(sdhci_esdhc_init); + +static void __exit sdhci_esdhc_exit(void) +{ + platform_driver_unregister(&sdhci_esdhc_driver); +} +module_exit(sdhci_esdhc_exit); + +MODULE_DESCRIPTION("SDHCI OF driver for Freescale MPC eSDHC"); +MODULE_AUTHOR("Xiaobo Xie <X.Xie@freescale.com>, " + "Anton Vorontsov <avorontsov@ru.mvista.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c index 380e896864b5..faedfcec7760 100644 --- a/drivers/mmc/host/sdhci-of-hlwd.c +++ b/drivers/mmc/host/sdhci-of-hlwd.c @@ -21,7 +21,7 @@ #include <linux/delay.h> #include <linux/mmc/host.h> -#include "sdhci-of.h" +#include "sdhci-pltfm.h" #include "sdhci.h" /* @@ -60,8 +60,54 @@ static struct sdhci_ops sdhci_hlwd_ops = { .write_b = sdhci_hlwd_writeb, }; -struct sdhci_pltfm_data sdhci_hlwd_pdata = { +static struct sdhci_pltfm_data sdhci_hlwd_pdata = { .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_32BIT_DMA_SIZE, .ops = &sdhci_hlwd_ops, }; + +static int __devinit sdhci_hlwd_probe(struct platform_device *pdev) +{ + return sdhci_pltfm_register(pdev, &sdhci_hlwd_pdata); +} + +static int __devexit sdhci_hlwd_remove(struct platform_device *pdev) +{ + return sdhci_pltfm_unregister(pdev); +} + +static const struct of_device_id sdhci_hlwd_of_match[] = { + { .compatible = "nintendo,hollywood-sdhci" }, + { } +}; +MODULE_DEVICE_TABLE(of, sdhci_hlwd_of_match); + +static struct platform_driver sdhci_hlwd_driver = { + .driver = { + .name = "sdhci-hlwd", + .owner = THIS_MODULE, + .of_match_table = sdhci_hlwd_of_match, + }, + .probe = sdhci_hlwd_probe, + .remove = __devexit_p(sdhci_hlwd_remove), +#ifdef CONFIG_PM + .suspend = sdhci_pltfm_suspend, + .resume = sdhci_pltfm_resume, +#endif +}; + +static int __init sdhci_hlwd_init(void) +{ + return platform_driver_register(&sdhci_hlwd_driver); +} +module_init(sdhci_hlwd_init); + +static void __exit sdhci_hlwd_exit(void) +{ + platform_driver_unregister(&sdhci_hlwd_driver); +} +module_exit(sdhci_hlwd_exit); + +MODULE_DESCRIPTION("Nintendo Wii SDHCI OF driver"); +MODULE_AUTHOR("The GameCube Linux Team, Albert Herranz"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mmc/host/sdhci-of.h b/drivers/mmc/host/sdhci-of.h deleted file mode 100644 index 5bdb5e7cce61..000000000000 --- a/drivers/mmc/host/sdhci-of.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * OpenFirmware bindings for Secure Digital Host Controller Interface. - * - * Copyright (c) 2007 Freescale Semiconductor, Inc. - * Copyright (c) 2009 MontaVista Software, Inc. - * - * Authors: Xiaobo Xie <X.Xie@freescale.com> - * Anton Vorontsov <avorontsov@ru.mvista.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - */ - -#ifndef __SDHCI_OF_H -#define __SDHCI_OF_H - -#include <linux/types.h> -#include "sdhci.h" -#include "sdhci-pltfm.h" - -extern u32 sdhci_be32bs_readl(struct sdhci_host *host, int reg); -extern u16 sdhci_be32bs_readw(struct sdhci_host *host, int reg); -extern u8 sdhci_be32bs_readb(struct sdhci_host *host, int reg); -extern void sdhci_be32bs_writel(struct sdhci_host *host, u32 val, int reg); -extern void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg); -extern void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg); - -extern struct sdhci_pltfm_data sdhci_esdhc_pdata; -extern struct sdhci_pltfm_data sdhci_hlwd_pdata; - -#endif /* __SDHCI_OF_H */ diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c index 8ccf25666201..041b0e2a898e 100644 --- a/drivers/mmc/host/sdhci-pltfm.c +++ b/drivers/mmc/host/sdhci-pltfm.c @@ -2,6 +2,12 @@ * sdhci-pltfm.c Support for SDHCI platform devices * Copyright (c) 2009 Intel Corporation * + * Copyright (c) 2007 Freescale Semiconductor, Inc. + * Copyright (c) 2009 MontaVista Software, Inc. + * + * Authors: Xiaobo Xie <X.Xie@freescale.com> + * Anton Vorontsov <avorontsov@ru.mvista.com> + * * 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. @@ -23,13 +29,114 @@ */ #include <linux/err.h> - +#include <linux/of.h> +#ifdef CONFIG_PPC +#include <asm/machdep.h> +#endif #include "sdhci.h" #include "sdhci-pltfm.h" static struct sdhci_ops sdhci_pltfm_ops = { }; +#ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER +/* + * These accessors are designed for big endian hosts doing I/O to + * little endian controllers incorporating a 32-bit hardware byte swapper. + */ +u32 sdhci_be32bs_readl(struct sdhci_host *host, int reg) +{ + return in_be32(host->ioaddr + reg); +} + +u16 sdhci_be32bs_readw(struct sdhci_host *host, int reg) +{ + return in_be16(host->ioaddr + (reg ^ 0x2)); +} + +u8 sdhci_be32bs_readb(struct sdhci_host *host, int reg) +{ + return in_8(host->ioaddr + (reg ^ 0x3)); +} + +void sdhci_be32bs_writel(struct sdhci_host *host, u32 val, int reg) +{ + out_be32(host->ioaddr + reg, val); +} + +void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + int base = reg & ~0x3; + int shift = (reg & 0x2) * 8; + + switch (reg) { + case SDHCI_TRANSFER_MODE: + /* + * Postpone this write, we must do it together with a + * command write that is down below. + */ + pltfm_host->xfer_mode_shadow = val; + return; + case SDHCI_COMMAND: + sdhci_be32bs_writel(host, + val << 16 | pltfm_host->xfer_mode_shadow, + SDHCI_TRANSFER_MODE); + return; + } + clrsetbits_be32(host->ioaddr + base, 0xffff << shift, val << shift); +} + +void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg) +{ + int base = reg & ~0x3; + int shift = (reg & 0x3) * 8; + + clrsetbits_be32(host->ioaddr + base , 0xff << shift, val << shift); +} +#endif /* CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER */ + +#ifdef CONFIG_OF +static bool sdhci_of_wp_inverted(struct device_node *np) +{ + if (of_get_property(np, "sdhci,wp-inverted", NULL)) + return true; + + /* Old device trees don't have the wp-inverted property. */ +#ifdef CONFIG_PPC + return machine_is(mpc837x_rdb) || machine_is(mpc837x_mds); +#else + return false; +#endif /* CONFIG_PPC */ +} + +void sdhci_get_of_property(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct sdhci_host *host = platform_get_drvdata(pdev); + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + const __be32 *clk; + int size; + + if (of_device_is_available(np)) { + if (of_get_property(np, "sdhci,auto-cmd12", NULL)) + host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12; + + if (of_get_property(np, "sdhci,1-bit-only", NULL)) + host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA; + + if (sdhci_of_wp_inverted(np)) + host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT; + + clk = of_get_property(np, "clock-frequency", &size); + if (clk && size == sizeof(*clk) && *clk) + pltfm_host->clock = be32_to_cpup(clk); + } +} +#else +void sdhci_get_of_property(struct platform_device *pdev) {} +#endif /* CONFIG_OF */ + struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev, struct sdhci_pltfm_data *pdata) { @@ -117,6 +224,8 @@ int sdhci_pltfm_register(struct platform_device *pdev, if (IS_ERR(host)) return PTR_ERR(host); + sdhci_get_of_property(pdev); + ret = sdhci_add_host(host); if (ret) sdhci_pltfm_free(pdev); diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h index 3cac4506f8f9..fe27b83f5bb1 100644 --- a/drivers/mmc/host/sdhci-pltfm.h +++ b/drivers/mmc/host/sdhci-pltfm.h @@ -15,6 +15,7 @@ #include <linux/types.h> #include <linux/platform_device.h> #include <linux/mmc/sdhci-pltfm.h> +#include <linux/mmc/sdhci.h> struct sdhci_pltfm_host { struct clk *clk; @@ -25,6 +26,17 @@ struct sdhci_pltfm_host { u16 xfer_mode_shadow; }; +#ifdef CONFIG_MMC_SDHCI_BIG_ENDIAN_32BIT_BYTE_SWAPPER +extern u32 sdhci_be32bs_readl(struct sdhci_host *host, int reg); +extern u16 sdhci_be32bs_readw(struct sdhci_host *host, int reg); +extern u8 sdhci_be32bs_readb(struct sdhci_host *host, int reg); +extern void sdhci_be32bs_writel(struct sdhci_host *host, u32 val, int reg); +extern void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg); +extern void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg); +#endif + +extern void sdhci_get_of_property(struct platform_device *pdev); + extern struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev, struct sdhci_pltfm_data *pdata); extern void sdhci_pltfm_free(struct platform_device *pdev); |