From a6925c1c515513e22b0419e1a41155c88d22b1f4 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Tue, 24 Mar 2009 17:25:40 +0000 Subject: [ARM] S3C6400: Core support for S3C6400 SoC Add the core support files for the Samsung S3C6400 SoC. Signed-off-by: Ben Dooks --- arch/arm/mach-s3c6400/s3c6400.c | 83 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 arch/arm/mach-s3c6400/s3c6400.c (limited to 'arch/arm/mach-s3c6400/s3c6400.c') diff --git a/arch/arm/mach-s3c6400/s3c6400.c b/arch/arm/mach-s3c6400/s3c6400.c new file mode 100644 index 00000000000..d11a4272b94 --- /dev/null +++ b/arch/arm/mach-s3c6400/s3c6400.c @@ -0,0 +1,83 @@ +/* linux/arch/arm/mach-s3c6410/cpu.c + * + * Copyright 2009 Simtec Electronics + * Ben Dooks + * http://armlinux.simtec.co.uk/ + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include + +void __init s3c6400_map_io(void) +{ + /* the i2c device is directly compatible with s3c2440 */ + s3c_i2c0_setname("s3c2440-i2c"); +} + +void __init s3c6400_init_clocks(int xtal) +{ + printk(KERN_DEBUG "%s: initialising clocks\n", __func__); + s3c24xx_register_baseclocks(xtal); + s3c64xx_register_clocks(); + s3c6400_register_clocks(); + s3c6400_setup_clocks(); +} + +void __init s3c6400_init_irq(void) +{ + /* VIC0 does not have IRQS 5..7, + * VIC1 is fully populated. */ + s3c64xx_init_irq(~0 & ~(0xf << 5), ~0); +} + +struct sysdev_class s3c6400_sysclass = { + .name = "s3c6400-core", +}; + +static struct sys_device s3c6400_sysdev = { + .cls = &s3c6400_sysclass, +}; + +static int __init s3c6400_core_init(void) +{ + return sysdev_class_register(&s3c6400_sysclass); +} + +core_initcall(s3c6400_core_init); + +int __init s3c6400_init(void) +{ + printk("S3C6400: Initialising architecture\n"); + + return sysdev_register(&s3c6400_sysdev); +} -- cgit v1.2.3-70-g09d2 From 4faf6867638cc21aa43b4ca4ed0bdf14a2d29762 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Wed, 25 Mar 2009 11:01:24 +0000 Subject: [ARM] S3C64XX: Add S3C6400 SDHCI setup support Add support for S3C6400 SDHCI channels 0 and 1, making the GPIO code common to both S3C6400 and S3C6410. Signed-off-by: Ben Dooks --- arch/arm/mach-s3c6400/Kconfig | 7 ++++ arch/arm/mach-s3c6400/Makefile | 4 ++ arch/arm/mach-s3c6400/s3c6400.c | 7 +++- arch/arm/mach-s3c6400/setup-sdhci.c | 63 ++++++++++++++++++++++++++++++++ arch/arm/mach-s3c6410/Kconfig | 1 + arch/arm/mach-s3c6410/setup-sdhci.c | 34 ----------------- arch/arm/plat-s3c/include/plat/sdhci.h | 50 ++++++++++++++++++++++--- arch/arm/plat-s3c64xx/Kconfig | 5 +++ arch/arm/plat-s3c64xx/Makefile | 1 + arch/arm/plat-s3c64xx/setup-sdhci-gpio.c | 55 ++++++++++++++++++++++++++++ 10 files changed, 187 insertions(+), 40 deletions(-) create mode 100644 arch/arm/mach-s3c6400/setup-sdhci.c create mode 100644 arch/arm/plat-s3c64xx/setup-sdhci-gpio.c (limited to 'arch/arm/mach-s3c6400/s3c6400.c') diff --git a/arch/arm/mach-s3c6400/Kconfig b/arch/arm/mach-s3c6400/Kconfig index f0292a8cddd..f5af212066c 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 07eac2be6f6..df1ce4aa03e 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 d11a4272b94..bd17f3db2c2 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 00000000000..b93dafbee1f --- /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 + * 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 +#include +#include +#include +#include + +#include +#include + +#include +#include + +/* 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 0c8df9797e5..4f7ffc7ce85 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 0b5788bd598..20666f3bd47 100644 --- a/arch/arm/mach-s3c6410/setup-sdhci.c +++ b/arch/arm/mach-s3c6410/setup-sdhci.c @@ -21,8 +21,6 @@ #include #include -#include -#include #include #include @@ -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 c4ca3920ca4..f615308ccdf 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 ad48fd73e04..eb088db0e65 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 12ac7a50ab7..030050f5c76 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 00000000000..5417123b0ac --- /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 + * 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 +#include +#include +#include +#include + +#include +#include + +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)); +} -- cgit v1.2.3-70-g09d2 From 496a3f0927197ca155a604478bf6e7db3eca3bbd Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sat, 2 May 2009 13:48:53 +0100 Subject: [ARM] S3C64XX: Add ARM clock Add ARM clock to provide 'arm' from the APLL to the ARM core. Signed-off-by: Ben Dooks --- arch/arm/mach-s3c6400/s3c6400.c | 3 +- arch/arm/mach-s3c6410/cpu.c | 3 +- arch/arm/plat-s3c64xx/include/plat/s3c6400.h | 2 +- arch/arm/plat-s3c64xx/s3c6400-clock.c | 76 +++++++++++++++++++++++++++- 4 files changed, 80 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-s3c6400/s3c6400.c') diff --git a/arch/arm/mach-s3c6400/s3c6400.c b/arch/arm/mach-s3c6400/s3c6400.c index bd17f3db2c2..1ece887d90b 100644 --- a/arch/arm/mach-s3c6400/s3c6400.c +++ b/arch/arm/mach-s3c6400/s3c6400.c @@ -30,6 +30,7 @@ #include #include +#include #include #include @@ -54,7 +55,7 @@ void __init s3c6400_init_clocks(int xtal) printk(KERN_DEBUG "%s: initialising clocks\n", __func__); s3c24xx_register_baseclocks(xtal); s3c64xx_register_clocks(); - s3c6400_register_clocks(); + s3c6400_register_clocks(S3C6400_CLKDIV0_ARM_MASK); s3c6400_setup_clocks(); } diff --git a/arch/arm/mach-s3c6410/cpu.c b/arch/arm/mach-s3c6410/cpu.c index 6a73ca6b7a3..ade904de889 100644 --- a/arch/arm/mach-s3c6410/cpu.c +++ b/arch/arm/mach-s3c6410/cpu.c @@ -31,6 +31,7 @@ #include #include +#include #include #include @@ -68,7 +69,7 @@ void __init s3c6410_init_clocks(int xtal) printk(KERN_DEBUG "%s: initialising clocks\n", __func__); s3c24xx_register_baseclocks(xtal); s3c64xx_register_clocks(); - s3c6400_register_clocks(); + s3c6400_register_clocks(S3C6410_CLKDIV0_ARM_MASK); s3c6400_setup_clocks(); } diff --git a/arch/arm/plat-s3c64xx/include/plat/s3c6400.h b/arch/arm/plat-s3c64xx/include/plat/s3c6400.h index e12296666d4..11f2e1e119b 100644 --- a/arch/arm/plat-s3c64xx/include/plat/s3c6400.h +++ b/arch/arm/plat-s3c64xx/include/plat/s3c6400.h @@ -15,7 +15,7 @@ /* Common init code for S3C6400 related SoCs */ extern void s3c6400_common_init_uarts(struct s3c2410_uartcfg *cfg, int no); -extern void s3c6400_register_clocks(void); +extern void s3c6400_register_clocks(unsigned armclk_divlimit); extern void s3c6400_setup_clocks(void); #ifdef CONFIG_CPU_S3C6400 diff --git a/arch/arm/plat-s3c64xx/s3c6400-clock.c b/arch/arm/plat-s3c64xx/s3c6400-clock.c index 96fa9ea4d5b..1debc1f9f98 100644 --- a/arch/arm/plat-s3c64xx/s3c6400-clock.c +++ b/arch/arm/plat-s3c64xx/s3c6400-clock.c @@ -133,6 +133,65 @@ static struct clksrc_clk clk_mout_mpll = { .sources = &clk_src_mpll, }; +static unsigned int armclk_mask; + +static unsigned long s3c64xx_clk_arm_get_rate(struct clk *clk) +{ + unsigned long rate = clk_get_rate(clk->parent); + u32 clkdiv; + + /* divisor mask starts at bit0, so no need to shift */ + clkdiv = __raw_readl(S3C_CLK_DIV0) & armclk_mask; + + return rate / (clkdiv + 1); +} + +static unsigned long s3c64xx_clk_arm_round_rate(struct clk *clk, + unsigned long rate) +{ + unsigned long parent = clk_get_rate(clk->parent); + u32 div; + + if (parent < rate) + return rate; + + div = (parent / rate) - 1; + if (div > armclk_mask) + div = armclk_mask; + + return parent / (div + 1); +} + +static int s3c64xx_clk_arm_set_rate(struct clk *clk, unsigned long rate) +{ + unsigned long parent = clk_get_rate(clk->parent); + u32 div; + u32 val; + + if (rate < parent / (armclk_mask + 1)) + return -EINVAL; + + rate = clk_round_rate(clk, rate); + div = clk_get_rate(clk->parent) / rate; + + val = __raw_readl(S3C_CLK_DIV0); + val &= armclk_mask; + val |= (div - 1); + __raw_writel(val, S3C_CLK_DIV0); + + return 0; + +} + +static struct clk clk_arm = { + .name = "armclk", + .id = -1, + .parent = &clk_mout_apll.clk, + .get_rate = s3c64xx_clk_arm_get_rate, + .set_rate = s3c64xx_clk_arm_set_rate, + .round_rate = s3c64xx_clk_arm_round_rate, +}; + static unsigned long s3c64xx_clk_doutmpll_get_rate(struct clk *clk) { unsigned long rate = clk_get_rate(clk->parent); @@ -665,14 +724,29 @@ static struct clk *clks[] __initdata = { &clk_audio1.clk, &clk_irda.clk, &clk_camif.clk, + &clk_arm, }; -void __init s3c6400_register_clocks(void) +/** + * s3c6400_register_clocks - register clocks for s3c6400 and above + * @armclk_divlimit: Divisor mask for ARMCLK + * + * Register the clocks for the S3C6400 and above SoC range, such + * as ARMCLK and the clocks which have divider chains attached. + * + * This call does not setup the clocks, which is left to the + * s3c6400_setup_clocks() call which may be needed by the cpufreq + * or resume code to re-set the clocks if the bootloader has changed + * them. + */ +void __init s3c6400_register_clocks(unsigned armclk_divlimit) { struct clk *clkp; int ret; int ptr; + armclk_mask = armclk_divlimit; + for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) { clkp = clks[ptr]; ret = s3c24xx_register_clock(clkp); -- cgit v1.2.3-70-g09d2