ARM: S3C2440: Add HP iPAQ RX1950 machine support
authorVasily Khoruzhick <anarsoul@gmail.com>
Tue, 11 May 2010 06:55:07 +0000 (09:55 +0300)
committerBen Dooks <ben-linux@fluff.org>
Wed, 12 May 2010 00:19:01 +0000 (09:19 +0900)
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Denis Grigoriev <dgreenday@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
arch/arm/mach-s3c2440/Kconfig
arch/arm/mach-s3c2440/Makefile
arch/arm/mach-s3c2440/mach-rx1950.c [new file with mode: 0644]

index 7f465265cf04a42f977da9168c04ed7c428b4cf0..a6c5df6d41efc05dcd5cc2e71d9d5daf320cffdd 100644 (file)
@@ -187,4 +187,17 @@ config MACH_MINI2440
          Say Y here to select support for the MINI2440. Is a 10cm x 10cm board
          available via various sources. It can come with a 3.5" or 7" touch LCD.
 
+config MACH_RX1950
+       bool "HP iPAQ rx1950"
+       select CPU_S3C2442
+       select S3C24XX_DCLK
+       select PM_H1940 if PM
+       select I2C
+       select S3C2410_PWM
+       select S3C_DEV_NAND
+       select S3C2410_IOTIMING if S3C2440_CPUFREQ
+       select S3C2440_XTAL_16934400
+       help
+          Say Y here if you're using HP iPAQ rx1950
+
 endmenu
index c85ba32d8956da05f1af89d0869038323c038829..d5440fa34b045cb8a9e2b0d5ec75cb913ea21a0f 100644 (file)
@@ -34,6 +34,7 @@ obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o
 obj-$(CONFIG_MACH_AT2440EVB) += mach-at2440evb.o
 obj-$(CONFIG_MACH_MINI2440) += mach-mini2440.o
 obj-$(CONFIG_MACH_NEO1973_GTA02) += mach-gta02.o
+obj-$(CONFIG_MACH_RX1950) += mach-rx1950.o
 
 # extra machine support
 
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
new file mode 100644 (file)
index 0000000..8603b57
--- /dev/null
@@ -0,0 +1,582 @@
+/* linux/arch/arm/mach-s3c2440/mach-rx1950.c
+ *
+ * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
+ * Copyright (c) 2007-2010 Vasily Khoruzhick
+ *
+ * based on smdk2440 written by Ben Dooks
+ *
+ * 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/delay.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/serial_core.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/sysdev.h>
+#include <linux/pwm_backlight.h>
+#include <linux/pwm.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <linux/mmc/host.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach-types.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/regs-gpioj.h>
+#include <mach/h1940.h>
+#include <mach/fb.h>
+
+#include <plat/clock.h>
+#include <plat/regs-serial.h>
+#include <plat/regs-iic.h>
+#include <plat/mci.h>
+#include <plat/udc.h>
+#include <plat/nand.h>
+#include <plat/iic.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/pm.h>
+#include <plat/irq.h>
+#include <plat/ts.h>
+
+#define LCD_PWM_PERIOD 192960
+#define LCD_PWM_DUTY 127353
+
+static struct map_desc rx1950_iodesc[] __initdata = {
+};
+
+static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
+       [0] = {
+              .name = "fclk",
+              .divisor = 0x0a,
+              .min_baud = 0,
+              .max_baud = 0,
+       },
+};
+
+static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
+       [0] = {
+              .hwport = 0,
+              .flags = 0,
+              .ucon = 0x3c5,
+              .ulcon = 0x03,
+              .ufcon = 0x51,
+              .clocks = rx1950_serial_clocks,
+              .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
+       },
+       [1] = {
+              .hwport = 1,
+              .flags = 0,
+              .ucon = 0x3c5,
+              .ulcon = 0x03,
+              .ufcon = 0x51,
+              .clocks = rx1950_serial_clocks,
+              .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
+       },
+       /* IR port */
+       [2] = {
+              .hwport = 2,
+              .flags = 0,
+              .ucon = 0x3c5,
+              .ulcon = 0x43,
+              .ufcon = 0xf1,
+              .clocks = rx1950_serial_clocks,
+              .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
+       },
+};
+
+static struct s3c2410fb_display rx1950_display = {
+       .type = S3C2410_LCDCON1_TFT,
+       .width = 240,
+       .height = 320,
+       .xres = 240,
+       .yres = 320,
+       .bpp = 16,
+
+       .pixclock = 260000,
+       .left_margin = 10,
+       .right_margin = 20,
+       .hsync_len = 10,
+       .upper_margin = 2,
+       .lower_margin = 2,
+       .vsync_len = 2,
+
+       .lcdcon5 = S3C2410_LCDCON5_FRM565 |
+                          S3C2410_LCDCON5_INVVCLK |
+                          S3C2410_LCDCON5_INVVLINE |
+                          S3C2410_LCDCON5_INVVFRAME |
+                          S3C2410_LCDCON5_HWSWP |
+                          (0x02 << 13) |
+                          (0x02 << 15),
+
+};
+
+static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
+       .displays = &rx1950_display,
+       .num_displays = 1,
+       .default_display = 0,
+
+       .lpcsel = 0x02,
+       .gpccon = 0xaa9556a9,
+       .gpccon_mask = 0xffc003fc,
+       .gpcup = 0x0000ffff,
+       .gpcup_mask = 0xffffffff,
+
+       .gpdcon = 0xaa90aaa1,
+       .gpdcon_mask = 0xffc0fff0,
+       .gpdup = 0x0000fcfd,
+       .gpdup_mask = 0xffffffff,
+
+};
+
+static struct pwm_device *lcd_pwm;
+
+void rx1950_lcd_power(int enable)
+{
+       int i;
+       static int enabled;
+       if (enabled == enable)
+               return;
+       if (!enable) {
+
+               /* GPC11-GPC15->OUTPUT */
+               for (i = 11; i < 16; i++)
+                       gpio_direction_output(S3C2410_GPC(i), 1);
+
+               /* Wait a bit here... */
+               mdelay(100);
+
+               /* GPD2-GPD7->OUTPUT */
+               /* GPD11-GPD15->OUTPUT */
+               /* GPD2-GPD7->1, GPD11-GPD15->1 */
+               for (i = 2; i < 8; i++)
+                       gpio_direction_output(S3C2410_GPD(i), 1);
+               for (i = 11; i < 16; i++)
+                       gpio_direction_output(S3C2410_GPD(i), 1);
+
+               /* Wait a bit here...*/
+               mdelay(100);
+
+               /* GPB0->OUTPUT, GPB0->0 */
+               gpio_direction_output(S3C2410_GPB(0), 0);
+
+               /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
+               for (i = 1; i < 5; i++)
+                       gpio_direction_output(S3C2410_GPC(i), 0);
+
+               /* GPC15-GPC11->0 */
+               for (i = 11; i < 16; i++)
+                       gpio_direction_output(S3C2410_GPC(i), 0);
+
+               /* GPD15-GPD11->0, GPD2->GPD7->0 */
+               for (i = 11; i < 16; i++)
+                       gpio_direction_output(S3C2410_GPD(i), 0);
+
+               for (i = 2; i < 8; i++)
+                       gpio_direction_output(S3C2410_GPD(i), 0);
+
+               /* GPC6->0, GPC7->0, GPC5->0 */
+               gpio_direction_output(S3C2410_GPC(6), 0);
+               gpio_direction_output(S3C2410_GPC(7), 0);
+               gpio_direction_output(S3C2410_GPC(5), 0);
+
+               /* GPB1->OUTPUT, GPB1->0 */
+               gpio_direction_output(S3C2410_GPB(1), 0);
+               pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
+               pwm_disable(lcd_pwm);
+
+               /* GPC0->0, GPC10->0 */
+               gpio_direction_output(S3C2410_GPC(0), 0);
+               gpio_direction_output(S3C2410_GPC(10), 0);
+       } else {
+               pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
+               pwm_enable(lcd_pwm);
+
+               gpio_direction_output(S3C2410_GPC(0), 1);
+               gpio_direction_output(S3C2410_GPC(5), 1);
+
+               s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
+               gpio_direction_output(S3C2410_GPC(7), 1);
+
+               for (i = 1; i < 5; i++)
+                       s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
+
+               for (i = 11; i < 16; i++)
+                       s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
+
+               for (i = 2; i < 8; i++)
+                       s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
+
+               for (i = 11; i < 16; i++)
+                       s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
+
+               gpio_direction_output(S3C2410_GPC(10), 1);
+               gpio_direction_output(S3C2410_GPC(6), 1);
+       }
+       enabled = enable;
+}
+
+static void rx1950_bl_power(int enable)
+{
+       static int enabled;
+       if (enabled == enable)
+               return;
+       if (!enable) {
+                       gpio_direction_output(S3C2410_GPB(0), 0);
+       } else {
+                       /* LED driver need a "push" to power on */
+                       gpio_direction_output(S3C2410_GPB(0), 1);
+                       /* Warm up backlight for one period of PWM.
+                        * Without this trick its almost impossible to
+                        * enable backlight with low brightness value
+                        */
+                       ndelay(48000);
+                       s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
+       }
+       enabled = enable;
+}
+
+static int rx1950_backlight_init(struct device *dev)
+{
+       WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
+       lcd_pwm = pwm_request(1, "RX1950 LCD");
+       if (IS_ERR(lcd_pwm)) {
+               dev_err(dev, "Unable to request PWM for LCD power!\n");
+               return PTR_ERR(lcd_pwm);
+       }
+
+       rx1950_lcd_power(1);
+       rx1950_bl_power(1);
+
+       return 0;
+}
+
+static void rx1950_backlight_exit(struct device *dev)
+{
+       rx1950_bl_power(0);
+       rx1950_lcd_power(0);
+
+       pwm_free(lcd_pwm);
+       gpio_free(S3C2410_GPB(0));
+}
+
+
+static int rx1950_backlight_notify(struct device *dev, int brightness)
+{
+       if (!brightness) {
+               rx1950_bl_power(0);
+               rx1950_lcd_power(0);
+       } else {
+               rx1950_lcd_power(1);
+               rx1950_bl_power(1);
+       }
+       return brightness;
+}
+
+static struct platform_pwm_backlight_data rx1950_backlight_data = {
+       .pwm_id = 0,
+       .max_brightness = 24,
+       .dft_brightness = 4,
+       .pwm_period_ns = 48000,
+       .init = rx1950_backlight_init,
+       .notify = rx1950_backlight_notify,
+       .exit = rx1950_backlight_exit,
+};
+
+static struct platform_device rx1950_backlight = {
+       .name = "pwm-backlight",
+       .dev = {
+               .parent = &s3c_device_timer[0].dev,
+               .platform_data = &rx1950_backlight_data,
+       },
+};
+
+static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
+{
+       switch (power_mode) {
+       case MMC_POWER_OFF:
+               gpio_direction_output(S3C2410_GPJ(1), 0);
+               break;
+       case MMC_POWER_UP:
+       case MMC_POWER_ON:
+               gpio_direction_output(S3C2410_GPJ(1), 1);
+               break;
+       default:
+               break;
+       }
+}
+
+static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
+       .gpio_detect = S3C2410_GPF(5),
+       .gpio_wprotect = S3C2410_GPH(8),
+       .set_power = rx1950_set_mmc_power,
+       .ocr_avail = MMC_VDD_32_33,
+};
+
+static struct mtd_partition rx1950_nand_part[] = {
+       [0] = {
+                       .name = "Boot0",
+                       .offset = 0,
+                       .size = 0x4000,
+                       .mask_flags = MTD_WRITEABLE,
+       },
+       [1] = {
+                       .name = "Boot1",
+                       .offset = MTDPART_OFS_APPEND,
+                       .size = 0x40000,
+                       .mask_flags = MTD_WRITEABLE,
+       },
+       [2] = {
+                       .name = "Kernel",
+                       .offset = MTDPART_OFS_APPEND,
+                       .size = 0x300000,
+                       .mask_flags = 0,
+       },
+       [3] = {
+                       .name = "Filesystem",
+                       .offset = MTDPART_OFS_APPEND,
+                       .size = MTDPART_SIZ_FULL,
+                       .mask_flags = 0,
+       },
+};
+
+static struct s3c2410_nand_set rx1950_nand_sets[] = {
+       [0] = {
+                       .name = "Internal",
+                       .nr_chips = 1,
+                       .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
+                       .partitions = rx1950_nand_part,
+       },
+};
+
+static struct s3c2410_platform_nand rx1950_nand_info = {
+       .tacls = 25,
+       .twrph0 = 50,
+       .twrph1 = 15,
+       .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
+       .sets = rx1950_nand_sets,
+};
+
+static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
+{
+       switch (cmd) {
+       case S3C2410_UDC_P_ENABLE:
+               gpio_direction_output(S3C2410_GPJ(5), 1);
+               break;
+       case S3C2410_UDC_P_DISABLE:
+               gpio_direction_output(S3C2410_GPJ(5), 0);
+               break;
+       case S3C2410_UDC_P_RESET:
+               break;
+       default:
+               break;
+       }
+}
+
+static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
+       .udc_command = rx1950_udc_pullup,
+       .vbus_pin = S3C2410_GPG(5),
+       .vbus_pin_inverted = 1,
+};
+
+static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
+       .delay = 10000,
+       .presc = 49,
+       .oversampling_shift = 3,
+};
+
+static struct gpio_keys_button rx1950_gpio_keys_table[] = {
+       {
+               .code           = KEY_POWER,
+               .gpio           = S3C2410_GPF(0),
+               .active_low     = 1,
+               .desc           = "Power button",
+               .wakeup         = 1,
+       },
+       {
+               .code           = KEY_F5,
+               .gpio           = S3C2410_GPF(7),
+               .active_low     = 1,
+               .desc           = "Record button",
+       },
+       {
+               .code           = KEY_F1,
+               .gpio           = S3C2410_GPG(0),
+               .active_low     = 1,
+               .desc           = "Calendar button",
+       },
+       {
+               .code           = KEY_F2,
+               .gpio           = S3C2410_GPG(2),
+               .active_low     = 1,
+               .desc           = "Contacts button",
+       },
+       {
+               .code           = KEY_F3,
+               .gpio           = S3C2410_GPG(3),
+               .active_low     = 1,
+               .desc           = "Mail button",
+       },
+       {
+               .code           = KEY_F4,
+               .gpio           = S3C2410_GPG(7),
+               .active_low     = 1,
+               .desc           = "WLAN button",
+       },
+       {
+               .code           = KEY_LEFT,
+               .gpio           = S3C2410_GPG(10),
+               .active_low     = 1,
+               .desc           = "Left button",
+       },
+       {
+               .code           = KEY_RIGHT,
+               .gpio           = S3C2410_GPG(11),
+               .active_low     = 1,
+               .desc           = "Right button",
+       },
+       {
+               .code           = KEY_UP,
+               .gpio           = S3C2410_GPG(4),
+               .active_low     = 1,
+               .desc           = "Up button",
+       },
+       {
+               .code           = KEY_DOWN,
+               .gpio           = S3C2410_GPG(6),
+               .active_low     = 1,
+               .desc           = "Down button",
+       },
+       {
+               .code           = KEY_ENTER,
+               .gpio           = S3C2410_GPG(9),
+               .active_low     = 1,
+               .desc           = "Ok button"
+       },
+};
+
+static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
+       .buttons = rx1950_gpio_keys_table,
+       .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
+};
+
+static struct platform_device rx1950_device_gpiokeys = {
+       .name = "gpio-keys",
+       .dev.platform_data = &rx1950_gpio_keys_data,
+};
+
+static struct s3c2410_platform_i2c rx1950_i2c_data = {
+       .flags = 0,
+       .slave_addr = 0x42,
+       .frequency = 400 * 1000,
+       .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
+};
+
+static struct platform_device *rx1950_devices[] __initdata = {
+       &s3c_device_lcd,
+       &s3c_device_wdt,
+       &s3c_device_i2c0,
+       &s3c_device_iis,
+       &s3c_device_usbgadget,
+       &s3c_device_rtc,
+       &s3c_device_nand,
+       &s3c_device_sdi,
+       &s3c_device_adc,
+       &s3c_device_ts,
+       &s3c_device_timer[0],
+       &s3c_device_timer[1],
+       &rx1950_backlight,
+       &rx1950_device_gpiokeys,
+};
+
+static struct clk *rx1950_clocks[] __initdata = {
+       &s3c24xx_clkout0,
+       &s3c24xx_clkout1,
+};
+
+static void __init rx1950_map_io(void)
+{
+       s3c24xx_clkout0.parent  = &clk_h;
+       s3c24xx_clkout1.parent  = &clk_f;
+
+       s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
+
+       s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
+       s3c24xx_init_clocks(16934000);
+       s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
+
+       /* setup PM */
+
+#ifdef CONFIG_PM_H1940
+       memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
+#endif
+
+       s3c_pm_init();
+}
+
+static void __init rx1950_init_machine(void)
+{
+       int i;
+
+       s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
+       s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
+       s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
+       s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
+       s3c_i2c0_set_platdata(&rx1950_i2c_data);
+       s3c_nand_set_platdata(&rx1950_nand_info);
+
+       /* Turn off suspend on both USB ports, and switch the
+        * selectable USB port to USB device mode. */
+       s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
+                                               S3C2410_MISCCR_USBSUSPND0 |
+                                               S3C2410_MISCCR_USBSUSPND1, 0x0);
+
+       WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));
+       gpio_direction_output(S3C2410_GPJ(5), 0);
+
+       /* mmc power is disabled by default */
+       WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
+       gpio_direction_output(S3C2410_GPJ(1), 0);
+
+       for (i = 0; i < 8; i++)
+               WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
+
+       for (i = 10; i < 16; i++)
+               WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
+
+       for (i = 2; i < 8; i++)
+               WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
+
+       for (i = 11; i < 16; i++)
+               WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
+
+       WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
+
+       platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
+}
+
+MACHINE_START(RX1950, "HP iPAQ RX1950")
+    /* Maintainers: Vasily Khoruzhick */
+    .phys_io = S3C2410_PA_UART,
+       .io_pg_offst = (((u32) S3C24XX_VA_UART) >> 18) & 0xfffc,
+       .boot_params = S3C2410_SDRAM_PA + 0x100,
+       .map_io = rx1950_map_io,
+       .init_irq = s3c24xx_init_irq,
+       .init_machine = rx1950_init_machine,
+       .timer = &s3c24xx_timer,
+MACHINE_END