diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-s5pc100/Kconfig | 6 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/cpu.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-s5pc100/setup-sdhci.c | 65 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/Kconfig | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/dev-hsmmc2.c | 65 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/sdhci.h | 55 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/Kconfig | 6 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c | 86 |
11 files changed, 297 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig index 36e7e0046c1..21b18212194 100644 --- a/arch/arm/mach-s5pc100/Kconfig +++ b/arch/arm/mach-s5pc100/Kconfig @@ -14,6 +14,12 @@ config CPU_S5PC100 help Enable S5PC100 CPU support +config S5PC100_SETUP_SDHCI + bool + select S5PC1XX_SETUP_SDHCI_GPIO + help + Internal helper functions for S5PC100 based SDHCI systems + config MACH_SMDKC100 bool "SMDKC100" select CPU_S5PC100 diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile index afc89b381d7..809ff10f768 100644 --- a/arch/arm/mach-s5pc100/Makefile +++ b/arch/arm/mach-s5pc100/Makefile @@ -13,5 +13,9 @@ obj- := obj-$(CONFIG_CPU_S5PC100) += cpu.o +# Helper and device support + +obj-$(CONFIG_S5PC100_SETUP_SDHCI) += setup-sdhci.o + # machine support obj-$(CONFIG_MACH_SMDKC100) += mach-smdkc100.o diff --git a/arch/arm/mach-s5pc100/cpu.c b/arch/arm/mach-s5pc100/cpu.c index 1319e3d0ec3..d79e7574a85 100644 --- a/arch/arm/mach-s5pc100/cpu.c +++ b/arch/arm/mach-s5pc100/cpu.c @@ -75,6 +75,9 @@ void __init s5pc100_map_io(void) iotable_init(s5pc100_iodesc, ARRAY_SIZE(s5pc100_iodesc)); /* initialise device information early */ + s5pc100_default_sdhci0(); + s5pc100_default_sdhci1(); + s5pc100_default_sdhci2(); /* the i2c devices are directly compatible with s3c2440 */ s3c_i2c0_setname("s3c2440-i2c"); diff --git a/arch/arm/mach-s5pc100/setup-sdhci.c b/arch/arm/mach-s5pc100/setup-sdhci.c new file mode 100644 index 00000000000..4385986a3da --- /dev/null +++ b/arch/arm/mach-s5pc100/setup-sdhci.c @@ -0,0 +1,65 @@ +/* linux/arch/arm/mach-s5pc100/setup-sdhci.c + * + * Copyright 2008 Samsung Electronics + * + * S5PC100 - Helper functions for settign up SDHCI device(s) (HSMMC) + * + * Based on mach-s3c6410/setup-sdhci.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. +*/ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <linux/mmc/card.h> +#include <linux/mmc/host.h> + +#include <plat/regs-sdhci.h> +#include <plat/sdhci.h> + +/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */ + +char *s5pc100_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + /* [2] = "mmc_bus", not yet succesfuuly used yet */ + /* [3] = "48m", - note not succesfully used yet */ +}; + + +void s5pc100_setup_sdhci0_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card) +{ + u32 ctrl2, ctrl3; + + /* don't need to alter anything acording to card-type */ + + writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA, r + S3C64XX_SDHCI_CONTROL4); + + ctrl2 = readl(r + S3C_SDHCI_CONTROL2); + ctrl2 &= S3C_SDHCI_CTRL2_SELBASECLK_MASK; + ctrl2 |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR | + S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK | + S3C_SDHCI_CTRL2_ENFBCLKRX | + S3C_SDHCI_CTRL2_DFCNT_NONE | + S3C_SDHCI_CTRL2_ENCLKOUTHOLD); + + if (ios->clock < 25 * 1000000) + ctrl3 = (S3C_SDHCI_CTRL3_FCSEL3 | + S3C_SDHCI_CTRL3_FCSEL2 | + S3C_SDHCI_CTRL3_FCSEL1 | + S3C_SDHCI_CTRL3_FCSEL0); + else + ctrl3 = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0); + + writel(ctrl2, r + S3C_SDHCI_CONTROL2); + writel(ctrl3, r + S3C_SDHCI_CONTROL3); +} diff --git a/arch/arm/plat-s3c/Kconfig b/arch/arm/plat-s3c/Kconfig index f155a849e70..e139a72c214 100644 --- a/arch/arm/plat-s3c/Kconfig +++ b/arch/arm/plat-s3c/Kconfig @@ -184,6 +184,11 @@ config S3C_DEV_HSMMC1 help Compile in platform device definitions for HSMMC channel 1 +config S3C_DEV_HSMMC2 + bool + help + Compile in platform device definitions for HSMMC channel 2 + config S3C_DEV_I2C1 bool help diff --git a/arch/arm/plat-s3c/Makefile b/arch/arm/plat-s3c/Makefile index 3c09109e9e8..50444da9842 100644 --- a/arch/arm/plat-s3c/Makefile +++ b/arch/arm/plat-s3c/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_HAVE_PWM) += pwm.o obj-$(CONFIG_S3C_DEV_HSMMC) += dev-hsmmc.o obj-$(CONFIG_S3C_DEV_HSMMC1) += dev-hsmmc1.o +obj-$(CONFIG_S3C_DEV_HSMMC2) += dev-hsmmc2.o obj-y += dev-i2c0.o obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o diff --git a/arch/arm/plat-s3c/dev-hsmmc2.c b/arch/arm/plat-s3c/dev-hsmmc2.c new file mode 100644 index 00000000000..082e55a78ad --- /dev/null +++ b/arch/arm/plat-s3c/dev-hsmmc2.c @@ -0,0 +1,65 @@ +/* linux/arch/arm/plat-s3c/dev-hsmmc2.c + * + * Copyright (c) 2009 Samsung Electronics + * + * S3C series device definition for hsmmc device 2 + * + * 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. +*/ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mmc/host.h> + +#include <mach/map.h> +#include <plat/sdhci.h> +#include <plat/devs.h> + +#define S3C_SZ_HSMMC (0x1000) + +static struct resource s3c_hsmmc2_resource[] = { + [0] = { + .start = S3C_PA_HSMMC2, + .end = S3C_PA_HSMMC2 + S3C_SZ_HSMMC - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_HSMMC2, + .end = IRQ_HSMMC2, + .flags = IORESOURCE_IRQ, + } +}; + +static u64 s3c_device_hsmmc2_dmamask = 0xffffffffUL; + +struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata = { + .max_width = 4, + .host_caps = (MMC_CAP_4_BIT_DATA | + MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED), +}; + +struct platform_device s3c_device_hsmmc2 = { + .name = "s3c-sdhci", + .id = 2, + .num_resources = ARRAY_SIZE(s3c_hsmmc2_resource), + .resource = s3c_hsmmc2_resource, + .dev = { + .dma_mask = &s3c_device_hsmmc2_dmamask, + .coherent_dma_mask = 0xffffffffUL, + .platform_data = &s3c_hsmmc2_def_platdata, + }, +}; + +void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd) +{ + struct s3c_sdhci_platdata *set = &s3c_hsmmc2_def_platdata; + + set->max_width = pd->max_width; + + if (pd->cfg_gpio) + set->cfg_gpio = pd->cfg_gpio; + if (pd->cfg_card) + set->cfg_card = pd->cfg_card; +} diff --git a/arch/arm/plat-s3c/include/plat/sdhci.h b/arch/arm/plat-s3c/include/plat/sdhci.h index f615308ccdf..c71d0786184 100644 --- a/arch/arm/plat-s3c/include/plat/sdhci.h +++ b/arch/arm/plat-s3c/include/plat/sdhci.h @@ -57,6 +57,7 @@ struct s3c_sdhci_platdata { */ extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd); extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd); +extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd); /* Default platform data, exported so that per-cpu initialisation can * set the correct one when there are more than one cpu type selected. @@ -64,11 +65,15 @@ extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd); extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata; extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata; +extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata; /* Helper function availablity */ extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w); extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w); +extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w); +extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w); +extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w); /* S3C6400 SDHCI setup */ @@ -145,4 +150,54 @@ static inline void s3c6410_default_sdhci0(void) { } static inline void s3c6410_default_sdhci1(void) { } #endif /* CONFIG_S3C6410_SETUP_SDHCI */ +/* S5PC100 SDHCI setup */ + +#ifdef CONFIG_S5PC100_SETUP_SDHCI +extern char *s5pc100_hsmmc_clksrcs[4]; + +extern void s5pc100_setup_sdhci0_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card); + +#ifdef CONFIG_S3C_DEV_HSMMC +static inline void s5pc100_default_sdhci0(void) +{ + s3c_hsmmc0_def_platdata.clocks = s5pc100_hsmmc_clksrcs; + s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio; + s3c_hsmmc0_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card; +} +#else +static inline void s5pc100_default_sdhci0(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC */ + +#ifdef CONFIG_S3C_DEV_HSMMC1 +static inline void s5pc100_default_sdhci1(void) +{ + s3c_hsmmc1_def_platdata.clocks = s5pc100_hsmmc_clksrcs; + s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio; + s3c_hsmmc1_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card; +} +#else +static inline void s5pc100_default_sdhci1(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC1 */ + +#ifdef CONFIG_S3C_DEV_HSMMC2 +static inline void s5pc100_default_sdhci2(void) +{ + s3c_hsmmc2_def_platdata.clocks = s5pc100_hsmmc_clksrcs; + s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio; + s3c_hsmmc2_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card; +} +#else +static inline void s5pc100_default_sdhci2(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC1 */ + + +#else +static inline void s5pc100_default_sdhci0(void) { } +static inline void s5pc100_default_sdhci1(void) { } +static inline void s5pc100_default_sdhci2(void) { } +#endif /* CONFIG_S5PC100_SETUP_SDHCI */ + #endif /* __PLAT_S3C_SDHCI_H */ diff --git a/arch/arm/plat-s5pc1xx/Kconfig b/arch/arm/plat-s5pc1xx/Kconfig index 1fc25b9f224..1608e62b0c9 100644 --- a/arch/arm/plat-s5pc1xx/Kconfig +++ b/arch/arm/plat-s5pc1xx/Kconfig @@ -55,4 +55,10 @@ config S5PC1XX_SETUP_I2C1 bool help Common setup code for i2c bus 1. + +config S5PC1XX_SETUP_SDHCI_GPIO + bool + help + Common setup code for SDHCI gpio. + endif diff --git a/arch/arm/plat-s5pc1xx/Makefile b/arch/arm/plat-s5pc1xx/Makefile index 40ee9571fb0..278f2680608 100644 --- a/arch/arm/plat-s5pc1xx/Makefile +++ b/arch/arm/plat-s5pc1xx/Makefile @@ -28,3 +28,4 @@ obj-$(CONFIG_S5P_GPIO_CFG_S5PC1XX) += gpio-config.o obj-$(CONFIG_S5PC1XX_SETUP_FB_24BPP) += setup-fb-24bpp.o obj-$(CONFIG_S5PC1XX_SETUP_I2C0) += setup-i2c0.o obj-$(CONFIG_S5PC1XX_SETUP_I2C1) += setup-i2c1.o +obj-$(CONFIG_S5PC1XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o diff --git a/arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c b/arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c new file mode 100644 index 00000000000..185c8941e64 --- /dev/null +++ b/arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c @@ -0,0 +1,86 @@ +/* linux/arch/arm/plat-s5pc1xx/setup-sdhci-gpio.c + * + * Copyright 2009 Samsung Eletronics + * + * S5PC1XX - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) + * + * 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. +*/ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/gpio.h> +#include <linux/mmc/host.h> +#include <linux/mmc/card.h> + +#include <plat/gpio-cfg.h> +#include <plat/regs-sdhci.h> + +void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + unsigned int num; + + num = width; + /* In case of 8 width, we should decrease the 2 */ + if (width == 8) + num = width - 2; + + end = S5PC100_GPG0(2 + num); + + /* Set all the necessary GPG0/GPG1 pins to special-function 0 */ + for (gpio = S5PC100_GPG0(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + if (width == 8) { + for (gpio = S5PC100_GPG1(0); gpio <= S5PC100_GPG1(1); gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + } + + s3c_gpio_setpull(S5PC100_GPG1(2), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG1(2), S3C_GPIO_SFN(2)); +} + +void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S5PC100_GPG2(2 + width); + + /* Set all the necessary GPG2 pins to special-function 2 */ + for (gpio = S5PC100_GPG2(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S5PC100_GPG2(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG2(6), S3C_GPIO_SFN(2)); +} + +void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S5PC100_GPG3(2 + width); + + /* Set all the necessary GPG3 pins to special-function 2 */ + for (gpio = S5PC100_GPG3(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S5PC100_GPG3(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S5PC100_GPG3(6), S3C_GPIO_SFN(2)); +} |