diff options
| -rw-r--r-- | arch/arm/mach-s3c6400/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6400/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6400/s3c6400.c | 7 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6400/setup-sdhci.c | 63 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/setup-sdhci.c | 34 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/include/plat/sdhci.h | 50 | ||||
| -rw-r--r-- | arch/arm/plat-s3c64xx/Kconfig | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s3c64xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/plat-s3c64xx/setup-sdhci-gpio.c | 55 |
10 files changed, 187 insertions, 40 deletions
diff --git a/arch/arm/mach-s3c6400/Kconfig b/arch/arm/mach-s3c6400/Kconfig index f0292a8..f5af212 100644 --- a/arch/arm/mach-s3c6400/Kconfig +++ b/arch/arm/mach-s3c6400/Kconfig @@ -14,11 +14,18 @@ config CPU_S3C6400 help Enable S3C6400 CPU support +config S3C6400_SETUP_SDHCI + bool + help + Internal configuration for default SDHCI + setup for S3C6400. + # S36400 Macchine support config MACH_SMDK6400 bool "SMDK6400" select CPU_S3C6400 select S3C_DEV_HSMMC + select S3C6400_SETUP_SDHCI help Machine support for the Samsung SMDK6400 diff --git a/arch/arm/mach-s3c6400/Makefile b/arch/arm/mach-s3c6400/Makefile index 07eac2b..df1ce4a 100644 --- a/arch/arm/mach-s3c6400/Makefile +++ b/arch/arm/mach-s3c6400/Makefile @@ -14,6 +14,10 @@ obj- := obj-$(CONFIG_CPU_S3C6400) += s3c6400.o +# setup support + +obj-$(CONFIG_S3C6400_SETUP_SDHCI) += setup-sdhci.o + # Machine support obj-$(CONFIG_MACH_SMDK6400) += mach-smdk6400.o diff --git a/arch/arm/mach-s3c6400/s3c6400.c b/arch/arm/mach-s3c6400/s3c6400.c index d11a427..bd17f3d 100644 --- a/arch/arm/mach-s3c6400/s3c6400.c +++ b/arch/arm/mach-s3c6400/s3c6400.c @@ -40,7 +40,12 @@ void __init s3c6400_map_io(void) { - /* the i2c device is directly compatible with s3c2440 */ + /* setup SDHCI */ + + s3c6400_default_sdhci0(); + s3c6400_default_sdhci1(); + + /* the i2c devices are directly compatible with s3c2440 */ s3c_i2c0_setname("s3c2440-i2c"); } diff --git a/arch/arm/mach-s3c6400/setup-sdhci.c b/arch/arm/mach-s3c6400/setup-sdhci.c new file mode 100644 index 0000000..b93dafb --- /dev/null +++ b/arch/arm/mach-s3c6400/setup-sdhci.c @@ -0,0 +1,63 @@ +/* linux/arch/arm/mach-s3c6410/setup-sdhci.c + * + * Copyright 2008 Simtec Electronics + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C6410 - Helper functions for settign up SDHCI device(s) (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/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 *s3c6400_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + [2] = "mmc_bus", + /* [3] = "48m", - note not succesfully used yet */ +}; + +void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card) +{ + u32 ctrl2, ctrl3; + + 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); + + printk(KERN_INFO "%s: CTRL 2=%08x, 3=%08x\n", __func__, ctrl2, ctrl3); + writel(ctrl2, r + S3C_SDHCI_CONTROL2); + writel(ctrl3, r + S3C_SDHCI_CONTROL3); +} + diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig index 0c8df97..4f7ffc7 100644 --- a/arch/arm/mach-s3c6410/Kconfig +++ b/arch/arm/mach-s3c6410/Kconfig @@ -16,6 +16,7 @@ config CPU_S3C6410 config S3C6410_SETUP_SDHCI bool + select S3C64XX_SETUP_SDHCI_GPIO help Internal helper functions for S3C6410 based SDHCI systems diff --git a/arch/arm/mach-s3c6410/setup-sdhci.c b/arch/arm/mach-s3c6410/setup-sdhci.c index 0b5788b..20666f3 100644 --- a/arch/arm/mach-s3c6410/setup-sdhci.c +++ b/arch/arm/mach-s3c6410/setup-sdhci.c @@ -21,8 +21,6 @@ #include <linux/mmc/card.h> #include <linux/mmc/host.h> -#include <mach/gpio.h> -#include <plat/gpio-cfg.h> #include <plat/regs-sdhci.h> #include <plat/sdhci.h> @@ -35,22 +33,6 @@ char *s3c6410_hsmmc_clksrcs[4] = { /* [3] = "48m", - note not succesfully used yet */ }; -void s3c6410_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) -{ - unsigned int gpio; - unsigned int end; - - end = S3C64XX_GPG(2 + width); - - /* Set all the necessary GPG pins to special-function 0 */ - for (gpio = S3C64XX_GPG(0); gpio < end; gpio++) { - s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); - s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); - } - - s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); - s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); -} void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, void __iomem *r, @@ -84,19 +66,3 @@ void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, writel(ctrl3, r + S3C_SDHCI_CONTROL3); } -void s3c6410_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) -{ - unsigned int gpio; - unsigned int end; - - end = S3C64XX_GPH(2 + width); - - /* Set all the necessary GPG pins to special-function 0 */ - for (gpio = S3C64XX_GPH(0); gpio < end; gpio++) { - s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); - s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); - } - - s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); - s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); -} diff --git a/arch/arm/plat-s3c/include/plat/sdhci.h b/arch/arm/plat-s3c/include/plat/sdhci.h index c4ca392..f615308 100644 --- a/arch/arm/plat-s3c/include/plat/sdhci.h +++ b/arch/arm/plat-s3c/include/plat/sdhci.h @@ -67,12 +67,52 @@ extern struct s3c_sdhci_platdata s3c_hsmmc1_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); + +/* S3C6400 SDHCI setup */ + +#ifdef CONFIG_S3C6400_SETUP_SDHCI +extern char *s3c6400_hsmmc_clksrcs[4]; + +#ifdef CONFIG_S3C_DEV_HSMMC +extern void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card); + +static inline void s3c6400_default_sdhci0(void) +{ + s3c_hsmmc0_def_platdata.clocks = s3c6400_hsmmc_clksrcs; + s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio; + s3c_hsmmc0_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card; +} + +#else +static inline void s3c6400_default_sdhci0(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC */ + +#ifdef CONFIG_S3C_DEV_HSMMC1 +static inline void s3c6400_default_sdhci1(void) +{ + s3c_hsmmc1_def_platdata.clocks = s3c6400_hsmmc_clksrcs; + s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio; + s3c_hsmmc1_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card; +} +#else +static inline void s3c6400_default_sdhci1(void) { } +#endif /* CONFIG_S3C_DEV_HSMMC1 */ + +#else +static inline void s3c6400_default_sdhci0(void) { } +static inline void s3c6400_default_sdhci1(void) { } +#endif /* CONFIG_S3C6400_SETUP_SDHCI */ + +/* S3C6410 SDHCI setup */ + #ifdef CONFIG_S3C6410_SETUP_SDHCI extern char *s3c6410_hsmmc_clksrcs[4]; -extern void s3c6410_setup_sdhci0_cfg_gpio(struct platform_device *, int w); -extern void s3c6410_setup_sdhci1_cfg_gpio(struct platform_device *, int w); - extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, void __iomem *r, struct mmc_ios *ios, @@ -82,7 +122,7 @@ extern void s3c6410_setup_sdhci0_cfg_card(struct platform_device *dev, static inline void s3c6410_default_sdhci0(void) { s3c_hsmmc0_def_platdata.clocks = s3c6410_hsmmc_clksrcs; - s3c_hsmmc0_def_platdata.cfg_gpio = s3c6410_setup_sdhci0_cfg_gpio; + s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio; s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card; } #else @@ -93,7 +133,7 @@ static inline void s3c6410_default_sdhci0(void) { } static inline void s3c6410_default_sdhci1(void) { s3c_hsmmc1_def_platdata.clocks = s3c6410_hsmmc_clksrcs; - s3c_hsmmc1_def_platdata.cfg_gpio = s3c6410_setup_sdhci1_cfg_gpio; + s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio; s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci0_cfg_card; } #else diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig index ad48fd73..eb088db 100644 --- a/arch/arm/plat-s3c64xx/Kconfig +++ b/arch/arm/plat-s3c64xx/Kconfig @@ -60,4 +60,9 @@ config S3C64XX_SETUP_FB_24BPP help Common setup code for S3C64XX with an 24bpp RGB display helper. +config S3C64XX_SETUP_SDHCI_GPIO + bool + help + Common setup code for S3C64XX SDHCI GPIO configurations + endif diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile index 12ac7a5..030050f 100644 --- a/arch/arm/plat-s3c64xx/Makefile +++ b/arch/arm/plat-s3c64xx/Makefile @@ -35,3 +35,4 @@ obj-$(CONFIG_PM) += irq-pm.o obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o obj-$(CONFIG_S3C64XX_SETUP_I2C1) += setup-i2c1.o obj-$(CONFIG_S3C64XX_SETUP_FB_24BPP) += setup-fb-24bpp.o +obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
\ No newline at end of file diff --git a/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c b/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c new file mode 100644 index 0000000..5417123 --- /dev/null +++ b/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c @@ -0,0 +1,55 @@ +/* linux/arch/arm/plat-s3c64xx/setup-sdhci-gpio.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C64XX - 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 <mach/gpio.h> +#include <plat/gpio-cfg.h> + +void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPG(2 + width); + + /* Set all the necessary GPG pins to special-function 0 */ + for (gpio = S3C64XX_GPG(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(2)); +} + +void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) +{ + unsigned int gpio; + unsigned int end; + + end = S3C64XX_GPH(2 + width); + + /* Set all the necessary GPG pins to special-function 0 */ + for (gpio = S3C64XX_GPH(0); gpio < end; gpio++) { + s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2)); + s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE); + } + + s3c_gpio_setpull(S3C64XX_GPG(6), S3C_GPIO_PULL_UP); + s3c_gpio_cfgpin(S3C64XX_GPG(6), S3C_GPIO_SFN(3)); +} |
