diff options
Diffstat (limited to 'arch/arm/mach-s3c2416')
| -rw-r--r-- | arch/arm/mach-s3c2416/Kconfig | 12 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/clock.c | 18 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/irq.c | 76 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/mach-smdk2416.c | 23 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/s3c2416.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/setup-sdhci-gpio.c | 34 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2416/setup-sdhci.c | 61 |
8 files changed, 188 insertions, 45 deletions
diff --git a/arch/arm/mach-s3c2416/Kconfig b/arch/arm/mach-s3c2416/Kconfig index df8d14974c9..69b48a7d1db 100644 --- a/arch/arm/mach-s3c2416/Kconfig +++ b/arch/arm/mach-s3c2416/Kconfig @@ -31,6 +31,17 @@ config S3C2416_PM help Internal config node to apply S3C2416 power management +config S3C2416_SETUP_SDHCI + bool + select S3C2416_SETUP_SDHCI_GPIO + help + Internal helper functions for S3C2416 based SDHCI systems + +config S3C2416_SETUP_SDHCI_GPIO + bool + help + Common setup code for SDHCI gpio. + menu "S3C2416 Machines" config MACH_SMDK2416 @@ -42,6 +53,7 @@ config MACH_SMDK2416 select S3C_DEV_HSMMC1 select S3C_DEV_NAND select S3C_DEV_USB_HOST + select S3C2416_SETUP_SDHCI select S3C2416_PM if PM help Say Y here if you are using an SMDK2416 diff --git a/arch/arm/mach-s3c2416/Makefile b/arch/arm/mach-s3c2416/Makefile index ef038d62ffd..7b805b279ca 100644 --- a/arch/arm/mach-s3c2416/Makefile +++ b/arch/arm/mach-s3c2416/Makefile @@ -14,6 +14,10 @@ obj-$(CONFIG_CPU_S3C2416) += irq.o obj-$(CONFIG_S3C2416_PM) += pm.o #obj-$(CONFIG_S3C2416_DMA) += dma.o +# Device setup +obj-$(CONFIG_S3C2416_SETUP_SDHCI) += setup-sdhci.o +obj-$(CONFIG_S3C2416_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o + # Machine support obj-$(CONFIG_MACH_SMDK2416) += mach-smdk2416.o diff --git a/arch/arm/mach-s3c2416/clock.c b/arch/arm/mach-s3c2416/clock.c index 7ccf5a2a2bf..3b02d8506e2 100644 --- a/arch/arm/mach-s3c2416/clock.c +++ b/arch/arm/mach-s3c2416/clock.c @@ -38,12 +38,11 @@ static unsigned int armdiv[8] = { [7] = 8, }; -/* ID to hardware numbering, 0 is HSMMC1, 1 is HSMMC0 */ static struct clksrc_clk hsmmc_div[] = { [0] = { .clk = { .name = "hsmmc-div", - .id = 1, + .id = 0, .parent = &clk_esysclk.clk, }, .reg_div = { .reg = S3C2416_CLKDIV2, .size = 2, .shift = 6 }, @@ -51,7 +50,7 @@ static struct clksrc_clk hsmmc_div[] = { [1] = { .clk = { .name = "hsmmc-div", - .id = 0, + .id = 1, .parent = &clk_esysclk.clk, }, .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 6 }, @@ -61,7 +60,7 @@ static struct clksrc_clk hsmmc_div[] = { static struct clksrc_clk hsmmc_mux[] = { [0] = { .clk = { - .id = 1, + .id = 0, .name = "hsmmc-if", .ctrlbit = (1 << 6), .enable = s3c2443_clkcon_enable_s, @@ -77,7 +76,7 @@ static struct clksrc_clk hsmmc_mux[] = { }, [1] = { .clk = { - .id = 0, + .id = 1, .name = "hsmmc-if", .ctrlbit = (1 << 12), .enable = s3c2443_clkcon_enable_s, @@ -93,6 +92,13 @@ static struct clksrc_clk hsmmc_mux[] = { }, }; +static struct clk hsmmc0_clk = { + .name = "hsmmc", + .id = 0, + .parent = &clk_h, + .enable = s3c2443_clkcon_enable_h, + .ctrlbit = S3C2416_HCLKCON_HSMMC0, +}; static inline unsigned int s3c2416_fclk_div(unsigned long clkcon0) { @@ -130,6 +136,8 @@ void __init s3c2416_init_clocks(int xtal) for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++) s3c_register_clksrc(clksrcs[ptr], 1); + s3c24xx_register_clock(&hsmmc0_clk); + s3c_pwmclk_init(); } diff --git a/arch/arm/mach-s3c2416/irq.c b/arch/arm/mach-s3c2416/irq.c index 00174daf152..680fe386aca 100644 --- a/arch/arm/mach-s3c2416/irq.c +++ b/arch/arm/mach-s3c2416/irq.c @@ -77,28 +77,27 @@ static void s3c2416_irq_demux_wdtac97(unsigned int irq, struct irq_desc *desc) #define INTMSK_WDTAC97 (1UL << (IRQ_WDT - IRQ_EINT0)) #define SUBMSK_WDTAC97 INTMSK(IRQ_S3C2443_WDT, IRQ_S3C2443_AC97) -static void s3c2416_irq_wdtac97_mask(unsigned int irqno) +static void s3c2416_irq_wdtac97_mask(struct irq_data *data) { - s3c_irqsub_mask(irqno, INTMSK_WDTAC97, SUBMSK_WDTAC97); + s3c_irqsub_mask(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97); } -static void s3c2416_irq_wdtac97_unmask(unsigned int irqno) +static void s3c2416_irq_wdtac97_unmask(struct irq_data *data) { - s3c_irqsub_unmask(irqno, INTMSK_WDTAC97); + s3c_irqsub_unmask(data->irq, INTMSK_WDTAC97); } -static void s3c2416_irq_wdtac97_ack(unsigned int irqno) +static void s3c2416_irq_wdtac97_ack(struct irq_data *data) { - s3c_irqsub_maskack(irqno, INTMSK_WDTAC97, SUBMSK_WDTAC97); + s3c_irqsub_maskack(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97); } static struct irq_chip s3c2416_irq_wdtac97 = { - .mask = s3c2416_irq_wdtac97_mask, - .unmask = s3c2416_irq_wdtac97_unmask, - .ack = s3c2416_irq_wdtac97_ack, + .irq_mask = s3c2416_irq_wdtac97_mask, + .irq_unmask = s3c2416_irq_wdtac97_unmask, + .irq_ack = s3c2416_irq_wdtac97_ack, }; - /* LCD sub interrupts */ static void s3c2416_irq_demux_lcd(unsigned int irq, struct irq_desc *desc) @@ -109,28 +108,27 @@ static void s3c2416_irq_demux_lcd(unsigned int irq, struct irq_desc *desc) #define INTMSK_LCD (1UL << (IRQ_LCD - IRQ_EINT0)) #define SUBMSK_LCD INTMSK(IRQ_S3C2443_LCD1, IRQ_S3C2443_LCD4) -static void s3c2416_irq_lcd_mask(unsigned int irqno) +static void s3c2416_irq_lcd_mask(struct irq_data *data) { - s3c_irqsub_mask(irqno, INTMSK_LCD, SUBMSK_LCD); + s3c_irqsub_mask(data->irq, INTMSK_LCD, SUBMSK_LCD); } -static void s3c2416_irq_lcd_unmask(unsigned int irqno) +static void s3c2416_irq_lcd_unmask(struct irq_data *data) { - s3c_irqsub_unmask(irqno, INTMSK_LCD); + s3c_irqsub_unmask(data->irq, INTMSK_LCD); } -static void s3c2416_irq_lcd_ack(unsigned int irqno) +static void s3c2416_irq_lcd_ack(struct irq_data *data) { - s3c_irqsub_maskack(irqno, INTMSK_LCD, SUBMSK_LCD); + s3c_irqsub_maskack(data->irq, INTMSK_LCD, SUBMSK_LCD); } static struct irq_chip s3c2416_irq_lcd = { - .mask = s3c2416_irq_lcd_mask, - .unmask = s3c2416_irq_lcd_unmask, - .ack = s3c2416_irq_lcd_ack, + .irq_mask = s3c2416_irq_lcd_mask, + .irq_unmask = s3c2416_irq_lcd_unmask, + .irq_ack = s3c2416_irq_lcd_ack, }; - /* DMA sub interrupts */ static void s3c2416_irq_demux_dma(unsigned int irq, struct irq_desc *desc) @@ -142,28 +140,27 @@ static void s3c2416_irq_demux_dma(unsigned int irq, struct irq_desc *desc) #define SUBMSK_DMA INTMSK(IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5) -static void s3c2416_irq_dma_mask(unsigned int irqno) +static void s3c2416_irq_dma_mask(struct irq_data *data) { - s3c_irqsub_mask(irqno, INTMSK_DMA, SUBMSK_DMA); + s3c_irqsub_mask(data->irq, INTMSK_DMA, SUBMSK_DMA); } -static void s3c2416_irq_dma_unmask(unsigned int irqno) +static void s3c2416_irq_dma_unmask(struct irq_data *data) { - s3c_irqsub_unmask(irqno, INTMSK_DMA); + s3c_irqsub_unmask(data->irq, INTMSK_DMA); } -static void s3c2416_irq_dma_ack(unsigned int irqno) +static void s3c2416_irq_dma_ack(struct irq_data *data) { - s3c_irqsub_maskack(irqno, INTMSK_DMA, SUBMSK_DMA); + s3c_irqsub_maskack(data->irq, INTMSK_DMA, SUBMSK_DMA); } static struct irq_chip s3c2416_irq_dma = { - .mask = s3c2416_irq_dma_mask, - .unmask = s3c2416_irq_dma_unmask, - .ack = s3c2416_irq_dma_ack, + .irq_mask = s3c2416_irq_dma_mask, + .irq_unmask = s3c2416_irq_dma_unmask, + .irq_ack = s3c2416_irq_dma_ack, }; - /* UART3 sub interrupts */ static void s3c2416_irq_demux_uart3(unsigned int irq, struct irq_desc *desc) @@ -174,28 +171,27 @@ static void s3c2416_irq_demux_uart3(unsigned int irq, struct irq_desc *desc) #define INTMSK_UART3 (1UL << (IRQ_S3C2443_UART3 - IRQ_EINT0)) #define SUBMSK_UART3 (0x7 << (IRQ_S3C2443_RX3 - S3C2410_IRQSUB(0))) -static void s3c2416_irq_uart3_mask(unsigned int irqno) +static void s3c2416_irq_uart3_mask(struct irq_data *data) { - s3c_irqsub_mask(irqno, INTMSK_UART3, SUBMSK_UART3); + s3c_irqsub_mask(data->irq, INTMSK_UART3, SUBMSK_UART3); } -static void s3c2416_irq_uart3_unmask(unsigned int irqno) +static void s3c2416_irq_uart3_unmask(struct irq_data *data) { - s3c_irqsub_unmask(irqno, INTMSK_UART3); + s3c_irqsub_unmask(data->irq, INTMSK_UART3); } -static void s3c2416_irq_uart3_ack(unsigned int irqno) +static void s3c2416_irq_uart3_ack(struct irq_data *data) { - s3c_irqsub_maskack(irqno, INTMSK_UART3, SUBMSK_UART3); + s3c_irqsub_maskack(data->irq, INTMSK_UART3, SUBMSK_UART3); } static struct irq_chip s3c2416_irq_uart3 = { - .mask = s3c2416_irq_uart3_mask, - .unmask = s3c2416_irq_uart3_unmask, - .ack = s3c2416_irq_uart3_ack, + .irq_mask = s3c2416_irq_uart3_mask, + .irq_unmask = s3c2416_irq_uart3_unmask, + .irq_ack = s3c2416_irq_uart3_ack, }; - /* IRQ initialisation code */ static int __init s3c2416_add_sub(unsigned int base, diff --git a/arch/arm/mach-s3c2416/mach-smdk2416.c b/arch/arm/mach-s3c2416/mach-smdk2416.c index 7fc366476d7..3f83177246c 100644 --- a/arch/arm/mach-s3c2416/mach-smdk2416.c +++ b/arch/arm/mach-s3c2416/mach-smdk2416.c @@ -46,6 +46,7 @@ #include <plat/devs.h> #include <plat/cpu.h> #include <plat/nand.h> +#include <plat/sdhci.h> #include <plat/regs-fb-v4.h> #include <plat/fb.h> @@ -110,6 +111,13 @@ static struct s3c2410_uartcfg smdk2416_uartcfgs[] __initdata = { .ucon = UCON, .ulcon = ULCON | 0x50, .ufcon = UFCON, + }, + [3] = { + .hwport = 3, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, } }; @@ -159,6 +167,18 @@ static struct s3c_fb_platdata smdk2416_fb_platdata = { .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, }; +static struct s3c_sdhci_platdata smdk2416_hsmmc0_pdata __initdata = { + .max_width = 4, + .cd_type = S3C_SDHCI_CD_GPIO, + .ext_cd_gpio = S3C2410_GPF(1), + .ext_cd_gpio_invert = 1, +}; + +static struct s3c_sdhci_platdata smdk2416_hsmmc1_pdata __initdata = { + .max_width = 4, + .cd_type = S3C_SDHCI_CD_NONE, +}; + static struct platform_device *smdk2416_devices[] __initdata = { &s3c_device_fb, &s3c_device_wdt, @@ -180,6 +200,9 @@ static void __init smdk2416_machine_init(void) s3c_i2c0_set_platdata(NULL); s3c_fb_set_platdata(&smdk2416_fb_platdata); + s3c_sdhci0_set_platdata(&smdk2416_hsmmc0_pdata); + s3c_sdhci1_set_platdata(&smdk2416_hsmmc1_pdata); + gpio_request(S3C2410_GPB(4), "USBHost Power"); gpio_direction_output(S3C2410_GPB(4), 1); diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c index 63f39cdc097..ba7fd873743 100644 --- a/arch/arm/mach-s3c2416/s3c2416.c +++ b/arch/arm/mach-s3c2416/s3c2416.c @@ -53,6 +53,7 @@ #include <plat/s3c2416.h> #include <plat/devs.h> #include <plat/cpu.h> +#include <plat/sdhci.h> #include <plat/iic-core.h> #include <plat/fb-core.h> @@ -115,6 +116,10 @@ void __init s3c2416_map_io(void) s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_updown; s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_updown; + /* initialize device information early */ + s3c2416_default_sdhci0(); + s3c2416_default_sdhci1(); + iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc)); } diff --git a/arch/arm/mach-s3c2416/setup-sdhci-gpio.c b/arch/arm/mach-s3c2416/setup-sdhci-gpio.c new file mode 100644 index 00000000000..f65cb3ef16c --- /dev/null +++ b/arch/arm/mach-s3c2416/setup-sdhci-gpio.c @@ -0,0 +1,34 @@ +/* linux/arch/arm/plat-s3c2416/setup-sdhci-gpio.c + * + * Copyright 2010 Promwad Innovation Company + * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> + * + * S3C2416 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC) + * + * Based on mach-s3c64xx/setup-sdhci-gpio.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/gpio.h> + +#include <mach/regs-gpio.h> +#include <plat/gpio-cfg.h> + +void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width) +{ + s3c_gpio_cfgrange_nopull(S3C2410_GPE(5), 2 + width, S3C_GPIO_SFN(2)); +} + +void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width) +{ + s3c_gpio_cfgrange_nopull(S3C2410_GPL(0), width, S3C_GPIO_SFN(2)); + s3c_gpio_cfgrange_nopull(S3C2410_GPL(8), 2, S3C_GPIO_SFN(2)); +} diff --git a/arch/arm/mach-s3c2416/setup-sdhci.c b/arch/arm/mach-s3c2416/setup-sdhci.c new file mode 100644 index 00000000000..ed34fad8f2c --- /dev/null +++ b/arch/arm/mach-s3c2416/setup-sdhci.c @@ -0,0 +1,61 @@ +/* linux/arch/arm/mach-s3c2416/setup-sdhci.c + * + * Copyright 2010 Promwad Innovation Company + * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> + * + * S3C2416 - Helper functions for settign up SDHCI device(s) (HSMMC) + * + * Based on mach-s3c64xx/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 *s3c2416_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + [2] = "hsmmc-if", + /* [3] = "48m", - note not successfully used yet */ +}; + +void s3c2416_setup_sdhci_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card) +{ + u32 ctrl2, ctrl3; + + ctrl2 = __raw_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); + + __raw_writel(ctrl2, r + S3C_SDHCI_CONTROL2); + __raw_writel(ctrl3, r + S3C_SDHCI_CONTROL3); +} |