| /* Machine specific code for the Acer n30, Acer N35, Navman PiN 570, |
| * Yakumo AlphaX and Airis NC05 PDAs. |
| * |
| * Copyright (c) 2003-2005 Simtec Electronics |
| * Ben Dooks <ben@simtec.co.uk> |
| * |
| * Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se> |
| * |
| * There is a wiki with more information about the n30 port at |
| * http://handhelds.org/moin/moin.cgi/AcerN30Documentation . |
| * |
| * 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/gpio_keys.h> |
| #include <linux/init.h> |
| #include <linux/gpio.h> |
| #include <linux/input.h> |
| #include <linux/interrupt.h> |
| #include <linux/platform_device.h> |
| #include <linux/serial_core.h> |
| #include <linux/timer.h> |
| #include <linux/io.h> |
| |
| #include <mach/hardware.h> |
| #include <asm/irq.h> |
| #include <asm/mach-types.h> |
| |
| #include <mach/fb.h> |
| #include <mach/leds-gpio.h> |
| #include <mach/regs-gpio.h> |
| #include <mach/regs-lcd.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/irq.h> |
| #include <asm/mach/map.h> |
| |
| #include <plat/iic.h> |
| #include <plat/regs-serial.h> |
| |
| #include <plat/clock.h> |
| #include <plat/cpu.h> |
| #include <plat/devs.h> |
| #include <plat/s3c2410.h> |
| #include <plat/udc.h> |
| |
| static struct map_desc n30_iodesc[] __initdata = { |
| /* nothing here yet */ |
| }; |
| |
| static struct s3c2410_uartcfg n30_uartcfgs[] = { |
| /* Normal serial port */ |
| [0] = { |
| .hwport = 0, |
| .flags = 0, |
| .ucon = 0x2c5, |
| .ulcon = 0x03, |
| .ufcon = 0x51, |
| }, |
| /* IR port */ |
| [1] = { |
| .hwport = 1, |
| .flags = 0, |
| .uart_flags = UPF_CONS_FLOW, |
| .ucon = 0x2c5, |
| .ulcon = 0x43, |
| .ufcon = 0x51, |
| }, |
| /* On the N30 the bluetooth controller is connected here. |
| * On the N35 and variants the GPS receiver is connected here. */ |
| [2] = { |
| .hwport = 2, |
| .flags = 0, |
| .ucon = 0x2c5, |
| .ulcon = 0x03, |
| .ufcon = 0x51, |
| }, |
| }; |
| |
| static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd) |
| { |
| switch (cmd) { |
| case S3C2410_UDC_P_ENABLE : |
| s3c2410_gpio_setpin(S3C2410_GPB(3), 1); |
| break; |
| case S3C2410_UDC_P_DISABLE : |
| s3c2410_gpio_setpin(S3C2410_GPB(3), 0); |
| break; |
| case S3C2410_UDC_P_RESET : |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = { |
| .udc_command = n30_udc_pullup, |
| .vbus_pin = S3C2410_GPG(1), |
| .vbus_pin_inverted = 0, |
| }; |
| |
| static struct gpio_keys_button n30_buttons[] = { |
| { |
| .gpio = S3C2410_GPF(0), |
| .code = KEY_POWER, |
| .desc = "Power", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(9), |
| .code = KEY_UP, |
| .desc = "Thumbwheel Up", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(8), |
| .code = KEY_DOWN, |
| .desc = "Thumbwheel Down", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(7), |
| .code = KEY_ENTER, |
| .desc = "Thumbwheel Press", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(7), |
| .code = KEY_HOMEPAGE, |
| .desc = "Home", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(6), |
| .code = KEY_CALENDAR, |
| .desc = "Calendar", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(5), |
| .code = KEY_ADDRESSBOOK, |
| .desc = "Contacts", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(4), |
| .code = KEY_MAIL, |
| .desc = "Mail", |
| .active_low = 0, |
| }, |
| }; |
| |
| static struct gpio_keys_platform_data n30_button_data = { |
| .buttons = n30_buttons, |
| .nbuttons = ARRAY_SIZE(n30_buttons), |
| }; |
| |
| static struct platform_device n30_button_device = { |
| .name = "gpio-keys", |
| .id = -1, |
| .dev = { |
| .platform_data = &n30_button_data, |
| } |
| }; |
| |
| static struct gpio_keys_button n35_buttons[] = { |
| { |
| .gpio = S3C2410_GPF(0), |
| .code = KEY_POWER, |
| .desc = "Power", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(9), |
| .code = KEY_UP, |
| .desc = "Joystick Up", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(8), |
| .code = KEY_DOWN, |
| .desc = "Joystick Down", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(6), |
| .code = KEY_DOWN, |
| .desc = "Joystick Left", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(5), |
| .code = KEY_DOWN, |
| .desc = "Joystick Right", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(7), |
| .code = KEY_ENTER, |
| .desc = "Joystick Press", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(7), |
| .code = KEY_HOMEPAGE, |
| .desc = "Home", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(6), |
| .code = KEY_CALENDAR, |
| .desc = "Calendar", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(5), |
| .code = KEY_ADDRESSBOOK, |
| .desc = "Contacts", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(4), |
| .code = KEY_MAIL, |
| .desc = "Mail", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPF(3), |
| .code = SW_RADIO, |
| .desc = "GPS Antenna", |
| .active_low = 0, |
| }, |
| { |
| .gpio = S3C2410_GPG(2), |
| .code = SW_HEADPHONE_INSERT, |
| .desc = "Headphone", |
| .active_low = 0, |
| }, |
| }; |
| |
| static struct gpio_keys_platform_data n35_button_data = { |
| .buttons = n35_buttons, |
| .nbuttons = ARRAY_SIZE(n35_buttons), |
| }; |
| |
| static struct platform_device n35_button_device = { |
| .name = "gpio-keys", |
| .id = -1, |
| .num_resources = 0, |
| .dev = { |
| .platform_data = &n35_button_data, |
| } |
| }; |
| |
| /* This is the bluetooth LED on the device. */ |
| static struct s3c24xx_led_platdata n30_blue_led_pdata = { |
| .name = "blue_led", |
| .gpio = S3C2410_GPG(6), |
| .def_trigger = "", |
| }; |
| |
| /* This LED is driven by the battery microcontroller, and is blinking |
| * red, blinking green or solid green when the battery is low, |
| * charging or full respectively. By driving GPD9 low, it's possible |
| * to force the LED to blink red, so call that warning LED. */ |
| static struct s3c24xx_led_platdata n30_warning_led_pdata = { |
| .name = "warning_led", |
| .flags = S3C24XX_LEDF_ACTLOW, |
| .gpio = S3C2410_GPD(9), |
| .def_trigger = "", |
| }; |
| |
| static struct platform_device n30_blue_led = { |
| .name = "s3c24xx_led", |
| .id = 1, |
| .dev = { |
| .platform_data = &n30_blue_led_pdata, |
| }, |
| }; |
| |
| static struct platform_device n30_warning_led = { |
| .name = "s3c24xx_led", |
| .id = 2, |
| .dev = { |
| .platform_data = &n30_warning_led_pdata, |
| }, |
| }; |
| |
| static struct s3c2410fb_display n30_display __initdata = { |
| .type = S3C2410_LCDCON1_TFT, |
| .width = 240, |
| .height = 320, |
| .pixclock = 170000, |
| |
| .xres = 240, |
| .yres = 320, |
| .bpp = 16, |
| .left_margin = 3, |
| .right_margin = 40, |
| .hsync_len = 40, |
| .upper_margin = 2, |
| .lower_margin = 3, |
| .vsync_len = 2, |
| |
| .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME, |
| }; |
| |
| static struct s3c2410fb_mach_info n30_fb_info __initdata = { |
| .displays = &n30_display, |
| .num_displays = 1, |
| .default_display = 0, |
| .lpcsel = 0x06, |
| }; |
| |
| static struct platform_device *n30_devices[] __initdata = { |
| &s3c_device_lcd, |
| &s3c_device_wdt, |
| &s3c_device_i2c0, |
| &s3c_device_iis, |
| &s3c_device_ohci, |
| &s3c_device_usbgadget, |
| &n30_button_device, |
| &n30_blue_led, |
| &n30_warning_led, |
| }; |
| |
| static struct platform_device *n35_devices[] __initdata = { |
| &s3c_device_lcd, |
| &s3c_device_wdt, |
| &s3c_device_i2c0, |
| &s3c_device_iis, |
| &s3c_device_usbgadget, |
| &n35_button_device, |
| }; |
| |
| static struct s3c2410_platform_i2c __initdata n30_i2ccfg = { |
| .flags = 0, |
| .slave_addr = 0x10, |
| .frequency = 10*1000, |
| }; |
| |
| /* Lots of hardcoded stuff, but it sets up the hardware in a useful |
| * state so that we can boot Linux directly from flash. */ |
| static void __init n30_hwinit(void) |
| { |
| /* GPA0-11 special functions -- unknown what they do |
| * GPA12 N30 special function -- unknown what it does |
| * N35/PiN output -- unknown what it does |
| * |
| * A12 is nGCS1 on the N30 and an output on the N35/PiN. I |
| * don't think it does anything useful on the N30, so I ought |
| * to make it an output there too since it always driven to 0 |
| * as far as I can tell. */ |
| if (machine_is_n30()) |
| __raw_writel(0x007fffff, S3C2410_GPACON); |
| if (machine_is_n35()) |
| __raw_writel(0x007fefff, S3C2410_GPACON); |
| __raw_writel(0x00000000, S3C2410_GPADAT); |
| |
| /* GPB0 TOUT0 backlight level |
| * GPB1 output 1=backlight on |
| * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled |
| * GPB3 output USB D+ pull up 0=disabled, 1=enabled |
| * GPB4 N30 output -- unknown function |
| * N30/PiN GPS control 0=GPS enabled, 1=GPS disabled |
| * GPB5 output -- unknown function |
| * GPB6 input -- unknown function |
| * GPB7 output -- unknown function |
| * GPB8 output -- probably LCD driver enable |
| * GPB9 output -- probably LCD VSYNC driver enable |
| * GPB10 output -- probably LCD HSYNC driver enable |
| */ |
| __raw_writel(0x00154556, S3C2410_GPBCON); |
| __raw_writel(0x00000750, S3C2410_GPBDAT); |
| __raw_writel(0x00000073, S3C2410_GPBUP); |
| |
| /* GPC0 input RS232 DCD/DSR/RI |
| * GPC1 LCD |
| * GPC2 output RS232 DTR? |
| * GPC3 input RS232 DCD/DSR/RI |
| * GPC4 LCD |
| * GPC5 output 0=NAND write enabled, 1=NAND write protect |
| * GPC6 input -- unknown function |
| * GPC7 input charger status 0=charger connected |
| * this input can be triggered by power on the USB device |
| * port too, but will go back to disconnected soon after. |
| * GPC8 N30/N35 output -- unknown function, always driven to 1 |
| * PiN input -- unknown function, always read as 1 |
| * Make it an input with a pull up for all models. |
| * GPC9-15 LCD |
| */ |
| __raw_writel(0xaaa80618, S3C2410_GPCCON); |
| __raw_writel(0x0000014c, S3C2410_GPCDAT); |
| __raw_writel(0x0000fef2, S3C2410_GPCUP); |
| |
| /* GPD0 input -- unknown function |
| * GPD1-D7 LCD |
| * GPD8 N30 output -- unknown function |
| * N35/PiN output 1=GPS LED on |
| * GPD9 output 0=power led blinks red, 1=normal power led function |
| * GPD10 output -- unknown function |
| * GPD11-15 LCD drivers |
| */ |
| __raw_writel(0xaa95aaa4, S3C2410_GPDCON); |
| __raw_writel(0x00000601, S3C2410_GPDDAT); |
| __raw_writel(0x0000fbfe, S3C2410_GPDUP); |
| |
| /* GPE0-4 I2S audio bus |
| * GPE5-10 SD/MMC bus |
| * E11-13 outputs -- unknown function, probably power management |
| * E14-15 I2C bus connected to the battery controller |
| */ |
| __raw_writel(0xa56aaaaa, S3C2410_GPECON); |
| __raw_writel(0x0000efc5, S3C2410_GPEDAT); |
| __raw_writel(0x0000f81f, S3C2410_GPEUP); |
| |
| /* GPF0 input 0=power button pressed |
| * GPF1 input SD/MMC switch 0=card present |
| * GPF2 N30 1=reset button pressed (inverted compared to the rest) |
| * N35/PiN 0=reset button pressed |
| * GPF3 N30/PiN input -- unknown function |
| * N35 input GPS antenna position, 0=antenna closed, 1=open |
| * GPF4 input 0=button 4 pressed |
| * GPF5 input 0=button 3 pressed |
| * GPF6 input 0=button 2 pressed |
| * GPF7 input 0=button 1 pressed |
| */ |
| __raw_writel(0x0000aaaa, S3C2410_GPFCON); |
| __raw_writel(0x00000000, S3C2410_GPFDAT); |
| __raw_writel(0x000000ff, S3C2410_GPFUP); |
| |
| /* GPG0 input RS232 DCD/DSR/RI |
| * GPG1 input 1=USB gadget port has power from a host |
| * GPG2 N30 input -- unknown function |
| * N35/PiN input 0=headphones plugged in, 1=not plugged in |
| * GPG3 N30 output -- unknown function |
| * N35/PiN input with unknown function |
| * GPG4 N30 output 0=MMC enabled, 1=MMC disabled |
| * GPG5 N30 output 0=BlueTooth chip disabled, 1=enabled |
| * N35/PiN input joystick right |
| * GPG6 N30 output 0=blue led on, 1=off |
| * N35/PiN input joystick left |
| * GPG7 input 0=thumbwheel pressed |
| * GPG8 input 0=thumbwheel down |
| * GPG9 input 0=thumbwheel up |
| * GPG10 input SD/MMC write protect switch |
| * GPG11 N30 input -- unknown function |
| * N35 output 0=GPS antenna powered, 1=not powered |
| * PiN output -- unknown function |
| * GPG12-15 touch screen functions |
| * |
| * The pullups differ between the models, so enable all |
| * pullups that are enabled on any of the models. |
| */ |
| if (machine_is_n30()) |
| __raw_writel(0xff0a956a, S3C2410_GPGCON); |
| if (machine_is_n35()) |
| __raw_writel(0xff4aa92a, S3C2410_GPGCON); |
| __raw_writel(0x0000e800, S3C2410_GPGDAT); |
| __raw_writel(0x0000f86f, S3C2410_GPGUP); |
| |
| /* GPH0/1/2/3 RS232 serial port |
| * GPH4/5 IrDA serial port |
| * GPH6/7 N30 BlueTooth serial port |
| * N35/PiN GPS receiver |
| * GPH8 input -- unknown function |
| * GPH9 CLKOUT0 HCLK -- unknown use |
| * GPH10 CLKOUT1 FCLK -- unknown use |
| * |
| * The pull ups for H6/H7 are enabled on N30 but not on the |
| * N35/PiN. I suppose is useful for a budget model of the N30 |
| * with no bluetooh. It doesn't hurt to have the pull ups |
| * enabled on the N35, so leave them enabled for all models. |
| */ |
| __raw_writel(0x0028aaaa, S3C2410_GPHCON); |
| __raw_writel(0x000005ef, S3C2410_GPHDAT); |
| __raw_writel(0x0000063f, S3C2410_GPHUP); |
| } |
| |
| static void __init n30_map_io(void) |
| { |
| s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc)); |
| n30_hwinit(); |
| s3c24xx_init_clocks(0); |
| s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs)); |
| } |
| |
| static void __init n30_init_irq(void) |
| { |
| s3c24xx_init_irq(); |
| } |
| |
| /* GPB3 is the line that controls the pull-up for the USB D+ line */ |
| |
| static void __init n30_init(void) |
| { |
| s3c24xx_fb_set_platdata(&n30_fb_info); |
| s3c24xx_udc_set_platdata(&n30_udc_cfg); |
| s3c_i2c0_set_platdata(&n30_i2ccfg); |
| |
| /* 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); |
| |
| if (machine_is_n30()) { |
| /* 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); |
| |
| platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices)); |
| } |
| |
| if (machine_is_n35()) { |
| /* Turn off suspend and switch the selectable USB port |
| * to USB device mode. Turn on suspend for the host |
| * port since it is not connected on the N35. |
| * |
| * Actually, the host port is available at some pads |
| * on the back of the device, so it would actually be |
| * possible to add a USB device inside the N35 if you |
| * are willing to do some hardware modifications. */ |
| s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | |
| S3C2410_MISCCR_USBSUSPND0 | |
| S3C2410_MISCCR_USBSUSPND1, |
| S3C2410_MISCCR_USBSUSPND1); |
| |
| platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices)); |
| } |
| } |
| |
| MACHINE_START(N30, "Acer-N30") |
| /* Maintainer: Christer Weinigel <christer@weinigel.se>, |
| Ben Dooks <ben-linux@fluff.org> |
| */ |
| .phys_io = S3C2410_PA_UART, |
| .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, |
| .boot_params = S3C2410_SDRAM_PA + 0x100, |
| .timer = &s3c24xx_timer, |
| .init_machine = n30_init, |
| .init_irq = n30_init_irq, |
| .map_io = n30_map_io, |
| MACHINE_END |
| |
| MACHINE_START(N35, "Acer-N35") |
| /* Maintainer: Christer Weinigel <christer@weinigel.se> |
| */ |
| .phys_io = S3C2410_PA_UART, |
| .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, |
| .boot_params = S3C2410_SDRAM_PA + 0x100, |
| .timer = &s3c24xx_timer, |
| .init_machine = n30_init, |
| .init_irq = n30_init_irq, |
| .map_io = n30_map_io, |
| MACHINE_END |