592 lines
13 KiB
C
592 lines
13 KiB
C
/* linux/arch/arm/mach-s3c2440/mach-rx1950.c
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*
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* Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
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* Copyright (c) 2007-2010 Vasily Khoruzhick
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*
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* based on smdk2440 written by Ben Dooks
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/memblock.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/serial_core.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/sysdev.h>
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#include <linux/pwm_backlight.h>
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#include <linux/pwm.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mmc/host.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach-types.h>
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#include <mach/regs-gpio.h>
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#include <mach/regs-gpioj.h>
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#include <mach/h1940.h>
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#include <mach/fb.h>
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#include <plat/clock.h>
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#include <plat/regs-serial.h>
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#include <plat/regs-iic.h>
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#include <plat/mci.h>
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#include <plat/udc.h>
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#include <plat/nand.h>
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#include <plat/iic.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <plat/pm.h>
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#include <plat/irq.h>
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#include <plat/ts.h>
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#define LCD_PWM_PERIOD 192960
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#define LCD_PWM_DUTY 127353
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static struct map_desc rx1950_iodesc[] __initdata = {
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};
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static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
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[0] = {
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.name = "fclk",
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.divisor = 0x0a,
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.min_baud = 0,
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.max_baud = 0,
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},
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};
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static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = 0x3c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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.clocks = rx1950_serial_clocks,
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.clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = 0x3c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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.clocks = rx1950_serial_clocks,
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.clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
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},
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/* IR port */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = 0x3c5,
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.ulcon = 0x43,
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.ufcon = 0xf1,
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.clocks = rx1950_serial_clocks,
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.clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
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},
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};
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static struct s3c2410fb_display rx1950_display = {
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.type = S3C2410_LCDCON1_TFT,
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.width = 240,
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.height = 320,
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.xres = 240,
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.yres = 320,
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.bpp = 16,
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.pixclock = 260000,
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.left_margin = 10,
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.right_margin = 20,
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.hsync_len = 10,
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.upper_margin = 2,
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.lower_margin = 2,
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.vsync_len = 2,
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.lcdcon5 = S3C2410_LCDCON5_FRM565 |
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S3C2410_LCDCON5_INVVCLK |
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S3C2410_LCDCON5_INVVLINE |
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S3C2410_LCDCON5_INVVFRAME |
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S3C2410_LCDCON5_HWSWP |
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(0x02 << 13) |
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(0x02 << 15),
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};
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static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
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.displays = &rx1950_display,
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.num_displays = 1,
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.default_display = 0,
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.lpcsel = 0x02,
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.gpccon = 0xaa9556a9,
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.gpccon_mask = 0xffc003fc,
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.gpcup = 0x0000ffff,
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.gpcup_mask = 0xffffffff,
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.gpdcon = 0xaa90aaa1,
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.gpdcon_mask = 0xffc0fff0,
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.gpdup = 0x0000fcfd,
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.gpdup_mask = 0xffffffff,
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};
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static struct pwm_device *lcd_pwm;
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void rx1950_lcd_power(int enable)
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{
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int i;
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static int enabled;
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if (enabled == enable)
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return;
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if (!enable) {
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/* GPC11-GPC15->OUTPUT */
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for (i = 11; i < 16; i++)
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gpio_direction_output(S3C2410_GPC(i), 1);
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/* Wait a bit here... */
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mdelay(100);
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/* GPD2-GPD7->OUTPUT */
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/* GPD11-GPD15->OUTPUT */
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/* GPD2-GPD7->1, GPD11-GPD15->1 */
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for (i = 2; i < 8; i++)
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gpio_direction_output(S3C2410_GPD(i), 1);
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for (i = 11; i < 16; i++)
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gpio_direction_output(S3C2410_GPD(i), 1);
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/* Wait a bit here...*/
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mdelay(100);
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/* GPB0->OUTPUT, GPB0->0 */
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gpio_direction_output(S3C2410_GPB(0), 0);
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/* GPC1-GPC4->OUTPUT, GPC1-4->0 */
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for (i = 1; i < 5; i++)
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gpio_direction_output(S3C2410_GPC(i), 0);
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/* GPC15-GPC11->0 */
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for (i = 11; i < 16; i++)
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gpio_direction_output(S3C2410_GPC(i), 0);
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/* GPD15-GPD11->0, GPD2->GPD7->0 */
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for (i = 11; i < 16; i++)
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gpio_direction_output(S3C2410_GPD(i), 0);
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for (i = 2; i < 8; i++)
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gpio_direction_output(S3C2410_GPD(i), 0);
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/* GPC6->0, GPC7->0, GPC5->0 */
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gpio_direction_output(S3C2410_GPC(6), 0);
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gpio_direction_output(S3C2410_GPC(7), 0);
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gpio_direction_output(S3C2410_GPC(5), 0);
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/* GPB1->OUTPUT, GPB1->0 */
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gpio_direction_output(S3C2410_GPB(1), 0);
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pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
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pwm_disable(lcd_pwm);
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/* GPC0->0, GPC10->0 */
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gpio_direction_output(S3C2410_GPC(0), 0);
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gpio_direction_output(S3C2410_GPC(10), 0);
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} else {
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pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
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pwm_enable(lcd_pwm);
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gpio_direction_output(S3C2410_GPC(0), 1);
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gpio_direction_output(S3C2410_GPC(5), 1);
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s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
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gpio_direction_output(S3C2410_GPC(7), 1);
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for (i = 1; i < 5; i++)
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s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
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for (i = 11; i < 16; i++)
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s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
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for (i = 2; i < 8; i++)
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s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
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for (i = 11; i < 16; i++)
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s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
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gpio_direction_output(S3C2410_GPC(10), 1);
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gpio_direction_output(S3C2410_GPC(6), 1);
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}
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enabled = enable;
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}
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static void rx1950_bl_power(int enable)
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{
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static int enabled;
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if (enabled == enable)
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return;
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if (!enable) {
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gpio_direction_output(S3C2410_GPB(0), 0);
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} else {
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/* LED driver need a "push" to power on */
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gpio_direction_output(S3C2410_GPB(0), 1);
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/* Warm up backlight for one period of PWM.
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* Without this trick its almost impossible to
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* enable backlight with low brightness value
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*/
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ndelay(48000);
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s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
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}
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enabled = enable;
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}
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static int rx1950_backlight_init(struct device *dev)
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{
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WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
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lcd_pwm = pwm_request(1, "RX1950 LCD");
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if (IS_ERR(lcd_pwm)) {
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dev_err(dev, "Unable to request PWM for LCD power!\n");
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return PTR_ERR(lcd_pwm);
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}
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rx1950_lcd_power(1);
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rx1950_bl_power(1);
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return 0;
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}
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static void rx1950_backlight_exit(struct device *dev)
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{
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rx1950_bl_power(0);
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rx1950_lcd_power(0);
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pwm_free(lcd_pwm);
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gpio_free(S3C2410_GPB(0));
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}
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static int rx1950_backlight_notify(struct device *dev, int brightness)
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{
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if (!brightness) {
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rx1950_bl_power(0);
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rx1950_lcd_power(0);
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} else {
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rx1950_lcd_power(1);
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rx1950_bl_power(1);
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}
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return brightness;
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}
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static struct platform_pwm_backlight_data rx1950_backlight_data = {
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.pwm_id = 0,
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.max_brightness = 24,
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.dft_brightness = 4,
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.pwm_period_ns = 48000,
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.init = rx1950_backlight_init,
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.notify = rx1950_backlight_notify,
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.exit = rx1950_backlight_exit,
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};
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static struct platform_device rx1950_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &s3c_device_timer[0].dev,
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.platform_data = &rx1950_backlight_data,
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},
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};
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static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
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{
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switch (power_mode) {
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case MMC_POWER_OFF:
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gpio_direction_output(S3C2410_GPJ(1), 0);
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break;
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case MMC_POWER_UP:
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case MMC_POWER_ON:
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gpio_direction_output(S3C2410_GPJ(1), 1);
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break;
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default:
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break;
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}
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}
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static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
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.gpio_detect = S3C2410_GPF(5),
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.gpio_wprotect = S3C2410_GPH(8),
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.set_power = rx1950_set_mmc_power,
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.ocr_avail = MMC_VDD_32_33,
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};
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static struct mtd_partition rx1950_nand_part[] = {
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[0] = {
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.name = "Boot0",
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.offset = 0,
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.size = 0x4000,
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.mask_flags = MTD_WRITEABLE,
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},
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[1] = {
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.name = "Boot1",
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.offset = MTDPART_OFS_APPEND,
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.size = 0x40000,
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.mask_flags = MTD_WRITEABLE,
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},
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[2] = {
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.name = "Kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = 0x300000,
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.mask_flags = 0,
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},
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[3] = {
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.name = "Filesystem",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0,
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},
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};
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static struct s3c2410_nand_set rx1950_nand_sets[] = {
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[0] = {
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.name = "Internal",
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.nr_chips = 1,
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.nr_partitions = ARRAY_SIZE(rx1950_nand_part),
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.partitions = rx1950_nand_part,
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},
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};
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static struct s3c2410_platform_nand rx1950_nand_info = {
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.tacls = 25,
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.twrph0 = 50,
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.twrph1 = 15,
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.nr_sets = ARRAY_SIZE(rx1950_nand_sets),
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.sets = rx1950_nand_sets,
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};
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static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
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{
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switch (cmd) {
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case S3C2410_UDC_P_ENABLE:
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gpio_direction_output(S3C2410_GPJ(5), 1);
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break;
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case S3C2410_UDC_P_DISABLE:
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gpio_direction_output(S3C2410_GPJ(5), 0);
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break;
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case S3C2410_UDC_P_RESET:
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break;
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default:
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break;
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}
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}
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static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
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.udc_command = rx1950_udc_pullup,
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.vbus_pin = S3C2410_GPG(5),
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.vbus_pin_inverted = 1,
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};
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static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
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.delay = 10000,
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.presc = 49,
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.oversampling_shift = 3,
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};
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static struct gpio_keys_button rx1950_gpio_keys_table[] = {
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{
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.code = KEY_POWER,
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.gpio = S3C2410_GPF(0),
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.active_low = 1,
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.desc = "Power button",
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.wakeup = 1,
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},
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{
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.code = KEY_F5,
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.gpio = S3C2410_GPF(7),
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.active_low = 1,
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.desc = "Record button",
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},
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{
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.code = KEY_F1,
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.gpio = S3C2410_GPG(0),
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.active_low = 1,
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.desc = "Calendar button",
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},
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{
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.code = KEY_F2,
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.gpio = S3C2410_GPG(2),
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.active_low = 1,
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.desc = "Contacts button",
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},
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{
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.code = KEY_F3,
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.gpio = S3C2410_GPG(3),
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.active_low = 1,
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.desc = "Mail button",
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},
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{
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.code = KEY_F4,
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.gpio = S3C2410_GPG(7),
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.active_low = 1,
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.desc = "WLAN button",
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},
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{
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.code = KEY_LEFT,
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.gpio = S3C2410_GPG(10),
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.active_low = 1,
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.desc = "Left button",
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},
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{
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.code = KEY_RIGHT,
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.gpio = S3C2410_GPG(11),
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.active_low = 1,
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.desc = "Right button",
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},
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{
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.code = KEY_UP,
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.gpio = S3C2410_GPG(4),
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.active_low = 1,
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.desc = "Up button",
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},
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{
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.code = KEY_DOWN,
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.gpio = S3C2410_GPG(6),
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.active_low = 1,
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.desc = "Down button",
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},
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{
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.code = KEY_ENTER,
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.gpio = S3C2410_GPG(9),
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.active_low = 1,
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.desc = "Ok button"
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},
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};
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static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
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.buttons = rx1950_gpio_keys_table,
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.nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
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};
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static struct platform_device rx1950_device_gpiokeys = {
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.name = "gpio-keys",
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.dev.platform_data = &rx1950_gpio_keys_data,
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};
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static struct s3c2410_platform_i2c rx1950_i2c_data = {
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.flags = 0,
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.slave_addr = 0x42,
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.frequency = 400 * 1000,
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.sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
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};
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static struct platform_device *rx1950_devices[] __initdata = {
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&s3c_device_lcd,
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&s3c_device_wdt,
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&s3c_device_i2c0,
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&s3c_device_iis,
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&s3c_device_usbgadget,
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&s3c_device_rtc,
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&s3c_device_nand,
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&s3c_device_sdi,
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&s3c_device_adc,
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&s3c_device_ts,
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&s3c_device_timer[0],
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&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));
|
|
}
|
|
|
|
/* H1940 and RX3715 need to reserve this for suspend */
|
|
static void __init rx1950_reserve(void)
|
|
{
|
|
memblock_reserve(0x30003000, 0x1000);
|
|
memblock_reserve(0x30081000, 0x1000);
|
|
}
|
|
|
|
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,
|
|
.reserve = rx1950_reserve,
|
|
.init_irq = s3c24xx_init_irq,
|
|
.init_machine = rx1950_init_machine,
|
|
.timer = &s3c24xx_timer,
|
|
MACHINE_END
|