diff options
Diffstat (limited to 'arch/arm/mach-s3c6410')
| -rw-r--r-- | arch/arm/mach-s3c6410/Kconfig | 41 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/cpu.c | 10 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/mach-smdk6410.c | 96 | ||||
| -rw-r--r-- | arch/arm/mach-s3c6410/setup-sdhci.c | 102 |
5 files changed, 253 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig index 75b1244cf8ab..1d5010070027 100644 --- a/arch/arm/mach-s3c6410/Kconfig +++ b/arch/arm/mach-s3c6410/Kconfig @@ -14,8 +14,49 @@ config CPU_S3C6410 help Enable S3C6410 CPU support +config S3C6410_SETUP_SDHCI + bool + help + Internal helper functions for S3C6410 based SDHCI systems + config MACH_SMDK6410 bool "SMDK6410" select CPU_S3C6410 + select S3C_DEV_HSMMC + select S3C_DEV_HSMMC1 + select S3C_DEV_I2C1 + select S3C_DEV_FB + select S3C6410_SETUP_SDHCI + select S3C64XX_SETUP_I2C1 + select S3C64XX_SETUP_FB_24BPP help Machine support for the Samsung SMDK6410 + +# At least some of the SMDK6410s were shipped with the card detect +# for the MMC/SD slots connected to the same input. This means that +# either the boards need to be altered to have channel0 to an alternate +# configuration or that only one slot can be used. + +choice + prompt "SMDK6410 MMC/SD slot setup" + depends on MACH_SMDK6410 + +config SMDK6410_SD_CH0 + bool "Use channel 0 only" + depends on MACH_SMDK6410 + help + Select CON7 (channel 0) as the MMC/SD slot, as + at least some SMDK6410 boards come with the + resistors fitted so that the card detects for + channels 0 and 1 are the same. + +config SMDK6410_SD_CH1 + bool "Use channel 1 only" + depends on MACH_SMDK6410 + help + Select CON6 (channel 1) as the MMC/SD slot, as + at least some SMDK6410 boards come with the + resistors fitted so that the card detects for + channels 0 and 1 are the same. + +endchoice diff --git a/arch/arm/mach-s3c6410/Makefile b/arch/arm/mach-s3c6410/Makefile index 4a20a009990a..2cd4f189036b 100644 --- a/arch/arm/mach-s3c6410/Makefile +++ b/arch/arm/mach-s3c6410/Makefile @@ -14,6 +14,10 @@ obj- := obj-$(CONFIG_CPU_S3C6410) += cpu.o +# Helper and device support + +obj-$(CONFIG_S3C6410_SETUP_SDHCI) += setup-sdhci.o + # machine support obj-$(CONFIG_MACH_SMDK6410) += mach-smdk6410.o diff --git a/arch/arm/mach-s3c6410/cpu.c b/arch/arm/mach-s3c6410/cpu.c index 975cf88f0e84..6a73ca6b7a3a 100644 --- a/arch/arm/mach-s3c6410/cpu.c +++ b/arch/arm/mach-s3c6410/cpu.c @@ -35,6 +35,8 @@ #include <plat/cpu.h> #include <plat/devs.h> #include <plat/clock.h> +#include <plat/sdhci.h> +#include <plat/iic-core.h> #include <plat/s3c6400.h> #include <plat/s3c6410.h> @@ -51,6 +53,14 @@ static struct map_desc s3c6410_iodesc[] __initdata = { void __init s3c6410_map_io(void) { iotable_init(s3c6410_iodesc, ARRAY_SIZE(s3c6410_iodesc)); + + /* initialise device information early */ + s3c6410_default_sdhci0(); + s3c6410_default_sdhci1(); + + /* the i2c devices are directly compatible with s3c2440 */ + s3c_i2c0_setname("s3c2440-i2c"); + s3c_i2c1_setname("s3c2440-i2c"); } void __init s3c6410_init_clocks(int xtal) diff --git a/arch/arm/mach-s3c6410/mach-smdk6410.c b/arch/arm/mach-s3c6410/mach-smdk6410.c index 9213a8ba283b..3c4d47145c83 100644 --- a/arch/arm/mach-s3c6410/mach-smdk6410.c +++ b/arch/arm/mach-s3c6410/mach-smdk6410.c @@ -20,18 +20,27 @@ #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/i2c.h> +#include <linux/fb.h> +#include <linux/gpio.h> +#include <linux/delay.h> + +#include <video/platform_lcd.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <mach/hardware.h> +#include <mach/regs-fb.h> #include <mach/map.h> #include <asm/irq.h> #include <asm/mach-types.h> #include <plat/regs-serial.h> +#include <plat/iic.h> +#include <plat/fb.h> #include <plat/s3c6410.h> #include <plat/clock.h> @@ -59,9 +68,89 @@ static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = { }, }; +/* framebuffer and LCD setup. */ + +/* GPF15 = LCD backlight control + * GPF13 => Panel power + * GPN5 = LCD nRESET signal + * PWM_TOUT1 => backlight brightness + */ + +static void smdk6410_lcd_power_set(struct plat_lcd_data *pd, + unsigned int power) +{ + if (power) { + gpio_direction_output(S3C64XX_GPF(13), 1); + gpio_direction_output(S3C64XX_GPF(15), 1); + + /* fire nRESET on power up */ + gpio_direction_output(S3C64XX_GPN(5), 0); + msleep(10); + gpio_direction_output(S3C64XX_GPN(5), 1); + msleep(1); + } else { + gpio_direction_output(S3C64XX_GPF(15), 0); + gpio_direction_output(S3C64XX_GPF(13), 0); + } +} + +static struct plat_lcd_data smdk6410_lcd_power_data = { + .set_power = smdk6410_lcd_power_set, +}; + +static struct platform_device smdk6410_lcd_powerdev = { + .name = "platform-lcd", + .dev.parent = &s3c_device_fb.dev, + .dev.platform_data = &smdk6410_lcd_power_data, +}; + +static struct s3c_fb_pd_win smdk6410_fb_win0 = { + /* this is to ensure we use win0 */ + .win_mode = { + .pixclock = 41094, + .left_margin = 8, + .right_margin = 13, + .upper_margin = 7, + .lower_margin = 5, + .hsync_len = 3, + .vsync_len = 1, + .xres = 800, + .yres = 480, + }, + .max_bpp = 32, + .default_bpp = 16, +}; + +/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */ +static struct s3c_fb_platdata smdk6410_lcd_pdata __initdata = { + .setup_gpio = s3c64xx_fb_gpio_setup_24bpp, + .win[0] = &smdk6410_fb_win0, + .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB, + .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, +}; + struct map_desc smdk6410_iodesc[] = {}; static struct platform_device *smdk6410_devices[] __initdata = { +#ifdef CONFIG_SMDK6410_SD_CH0 + &s3c_device_hsmmc0, +#endif +#ifdef CONFIG_SMDK6410_SD_CH1 + &s3c_device_hsmmc1, +#endif + &s3c_device_i2c0, + &s3c_device_i2c1, + &s3c_device_fb, + &smdk6410_lcd_powerdev, +}; + +static struct i2c_board_info i2c_devs0[] __initdata = { + { I2C_BOARD_INFO("24c08", 0x50), }, + { I2C_BOARD_INFO("WM8580", 0X1b), }, +}; + +static struct i2c_board_info i2c_devs1[] __initdata = { + { I2C_BOARD_INFO("24c128", 0x57), }, /* Samsung S524AD0XD1 */ }; static void __init smdk6410_map_io(void) @@ -73,6 +162,13 @@ static void __init smdk6410_map_io(void) static void __init smdk6410_machine_init(void) { + s3c_i2c0_set_platdata(NULL); + s3c_i2c1_set_platdata(NULL); + s3c_fb_set_platdata(&smdk6410_lcd_pdata); + + i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0)); + i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1)); + platform_add_devices(smdk6410_devices, ARRAY_SIZE(smdk6410_devices)); } diff --git a/arch/arm/mach-s3c6410/setup-sdhci.c b/arch/arm/mach-s3c6410/setup-sdhci.c new file mode 100644 index 000000000000..0b5788bd5985 --- /dev/null +++ b/arch/arm/mach-s3c6410/setup-sdhci.c @@ -0,0 +1,102 @@ +/* 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 <mach/gpio.h> +#include <plat/gpio-cfg.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 *s3c6410_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + [2] = "mmc_bus", + /* [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, + 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); + + 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); +} + +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)); +} |