5 files changed, 473 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig
new file mode 100644
index 000000000000..1d5010070027
--- /dev/null
+++ b/arch/arm/mach-s3c6410/Kconfig
@@ -0,0 +1,62 @@
+# arch/arm/mach-s3c6410/Kconfig
+#
+# Copyright 2008 Openmoko, Inc.
+# Copyright 2008 Simtec Electronics
+#
+# Licensed under GPLv2
+
+# Configuration options for the S3C6410 CPU
+
+config CPU_S3C6410
+        bool
+        select CPU_S3C6400_INIT
+        select CPU_S3C6400_CLOCK
+        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
new file mode 100644
index 000000000000..2cd4f189036b
--- /dev/null
+++ b/arch/arm/mach-s3c6410/Makefile
@@ -0,0 +1,23 @@
+# arch/arm/plat-s3c6410/Makefile
+#
+# Copyright 2008 Openmoko, Inc.
+# Copyright 2008 Simtec Electronics
+#
+# Licensed under GPLv2
+
+obj-y                           :=
+obj-m                           :=
+obj-n                           :=
+obj-                            :=
+
+# Core support for S3C6410 system
+
+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
new file mode 100644
index 000000000000..6a73ca6b7a3a
--- /dev/null
+++ b/arch/arm/mach-s3c6410/cpu.c
@@ -0,0 +1,101 @@
+/* linux/arch/arm/mach-s3c6410/cpu.c
+ *
+ * Copyright 2008 Simtec Electronics
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      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 <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <plat/cpu-freq.h>
+#include <plat/regs-serial.h>
+
+#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>
+
+/* Initial IO mappings */
+
+static struct map_desc s3c6410_iodesc[] __initdata = {
+};
+
+/* s3c6410_map_io
+ *
+ * register the standard cpu IO areas
+*/
+
+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)
+{
+        printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
+        s3c24xx_register_baseclocks(xtal);
+        s3c64xx_register_clocks();
+        s3c6400_register_clocks();
+        s3c6400_setup_clocks();
+}
+
+void __init s3c6410_init_irq(void)
+{
+        /* VIC0 is missing IRQ7, VIC1 is fully populated. */
+        s3c64xx_init_irq(~0 & ~(1 << 7), ~0);
+}
+
+struct sysdev_class s3c6410_sysclass = {
+        .name   = "s3c6410-core",
+};
+
+static struct sys_device s3c6410_sysdev = {
+        .cls    = &s3c6410_sysclass,
+};
+
+static int __init s3c6410_core_init(void)
+{
+        return sysdev_class_register(&s3c6410_sysclass);
+}
+
+core_initcall(s3c6410_core_init);
+
+int __init s3c6410_init(void)
+{
+        printk("S3C6410: Initialising architecture\n");
+
+        return sysdev_register(&s3c6410_sysdev);
+}
diff --git a/arch/arm/mach-s3c6410/mach-smdk6410.c b/arch/arm/mach-s3c6410/mach-smdk6410.c
new file mode 100644
index 000000000000..3c4d47145c83
--- /dev/null
+++ b/arch/arm/mach-s3c6410/mach-smdk6410.c
@@ -0,0 +1,185 @@
+/* linux/arch/arm/mach-s3c6410/mach-smdk6410.c
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      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 <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#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>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
+#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
+#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+
+static struct s3c2410_uartcfg smdk6410_uartcfgs[] __initdata = {
+        [0] = {
+                .hwport      = 0,
+                .flags       = 0,
+                .ucon        = 0x3c5,
+                .ulcon       = 0x03,
+                .ufcon       = 0x51,
+        },
+        [1] = {
+                .hwport      = 1,
+                .flags       = 0,
+                .ucon        = 0x3c5,
+                .ulcon       = 0x03,
+                .ufcon       = 0x51,
+        },
+};
+
+/* 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)
+{
+        s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
+        s3c24xx_init_clocks(12000000);
+        s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
+}
+
+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));
+}
+
+MACHINE_START(SMDK6410, "SMDK6410")
+        /* Maintainer: Ben Dooks <ben@fluff.org> */
+        .phys_io        = S3C_PA_UART & 0xfff00000,
+        .io_pg_offst    = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
+        .boot_params    = S3C64XX_PA_SDRAM + 0x100,
+
+        .init_irq       = s3c6410_init_irq,
+        .map_io         = smdk6410_map_io,
+        .init_machine   = smdk6410_machine_init,
+        .timer          = &s3c24xx_timer,
+MACHINE_END
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));
+}