/* * Support for Sharp SL-C7xx PDAs * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky) * * Copyright (c) 2004-2005 Richard Purdie * * Based on Sharp's 2.4 kernel patches/lubbock.c * * 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/init.h> #include <linux/platform_device.h> #include <linux/major.h> #include <linux/fs.h> #include <linux/interrupt.h> #include <linux/mmc/host.h> #include <linux/pm.h> #include <linux/backlight.h> #include <video/w100fb.h> #include <asm/setup.h> #include <asm/memory.h> #include <asm/mach-types.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/system.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <mach/pxa-regs.h> #include <mach/pxa2xx-regs.h> #include <mach/pxa2xx-gpio.h> #include <mach/irda.h> #include <mach/mmc.h> #include <mach/udc.h> #include <mach/corgi.h> #include <mach/sharpsl.h> #include <asm/mach/sharpsl_param.h> #include <asm/hardware/scoop.h> #include "generic.h" #include "devices.h" #include "sharpsl.h" /* * Corgi SCOOP Device */ static struct resource corgi_scoop_resources[] = { [0] = { .start = 0x10800000, .end = 0x10800fff, .flags = IORESOURCE_MEM, }, }; static struct scoop_config corgi_scoop_setup = { .io_dir = CORGI_SCOOP_IO_DIR, .io_out = CORGI_SCOOP_IO_OUT, }; struct platform_device corgiscoop_device = { .name = "sharp-scoop", .id = -1, .dev = { .platform_data = &corgi_scoop_setup, }, .num_resources = ARRAY_SIZE(corgi_scoop_resources), .resource = corgi_scoop_resources, }; static void corgi_pcmcia_init(void) { /* Setup default state of GPIO outputs before we enable them as outputs. */ GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) | GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) | GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) | GPIO_bit(GPIO53_nPCE_2); pxa_gpio_mode(GPIO48_nPOE_MD); pxa_gpio_mode(GPIO49_nPWE_MD); pxa_gpio_mode(GPIO50_nPIOR_MD); pxa_gpio_mode(GPIO51_nPIOW_MD); pxa_gpio_mode(GPIO55_nPREG_MD); pxa_gpio_mode(GPIO56_nPWAIT_MD); pxa_gpio_mode(GPIO57_nIOIS16_MD); pxa_gpio_mode(GPIO52_nPCE_1_MD); pxa_gpio_mode(GPIO53_nPCE_2_MD); pxa_gpio_mode(GPIO54_pSKTSEL_MD); } static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = { { .dev = &corgiscoop_device.dev, .irq = CORGI_IRQ_GPIO_CF_IRQ, .cd_irq = CORGI_IRQ_GPIO_CF_CD, .cd_irq_str = "PCMCIA0 CD", }, }; static struct scoop_pcmcia_config corgi_pcmcia_config = { .devs = &corgi_pcmcia_scoop[0], .num_devs = 1, .pcmcia_init = corgi_pcmcia_init, }; EXPORT_SYMBOL(corgiscoop_device); /* * Corgi SSP Device * * Set the parent as the scoop device because a lot of SSP devices * also use scoop functions and this makes the power up/down order * work correctly. */ struct platform_device corgissp_device = { .name = "corgi-ssp", .dev = { .parent = &corgiscoop_device.dev, }, .id = -1, }; struct corgissp_machinfo corgi_ssp_machinfo = { .port = 1, .cs_lcdcon = CORGI_GPIO_LCDCON_CS, .cs_ads7846 = CORGI_GPIO_ADS7846_CS, .cs_max1111 = CORGI_GPIO_MAX1111_CS, .clk_lcdcon = 76, .clk_ads7846 = 2, .clk_max1111 = 8, }; /* * LCD/Framebuffer */ static void w100_lcdtg_suspend(struct w100fb_par *par) { corgi_lcdtg_suspend(); } static void w100_lcdtg_init(struct w100fb_par *par) { corgi_lcdtg_hw_init(par->xres); } static struct w100_tg_info corgi_lcdtg_info = { .change = w100_lcdtg_init, .suspend = w100_lcdtg_suspend, .resume = w100_lcdtg_init, }; static struct w100_mem_info corgi_fb_mem = { .ext_cntl = 0x00040003, .sdram_mode_reg = 0x00650021, .ext_timing_cntl = 0x10002a4a, .io_cntl = 0x7ff87012, .size = 0x1fffff, }; static struct w100_gen_regs corgi_fb_regs = { .lcd_format = 0x00000003, .lcdd_cntl1 = 0x01CC0000, .lcdd_cntl2 = 0x0003FFFF, .genlcd_cntl1 = 0x00FFFF0D, .genlcd_cntl2 = 0x003F3003, .genlcd_cntl3 = 0x000102aa, }; static struct w100_gpio_regs corgi_fb_gpio = { .init_data1 = 0x000000bf, .init_data2 = 0x00000000, .gpio_dir1 = 0x00000000, .gpio_oe1 = 0x03c0feff, .gpio_dir2 = 0x00000000, .gpio_oe2 = 0x00000000, }; static struct w100_mode corgi_fb_modes[] = { { .xres = 480, .yres = 640, .left_margin = 0x56, .right_margin = 0x55, .upper_margin = 0x03, .lower_margin = 0x00, .crtc_ss = 0x82360056, .crtc_ls = 0xA0280000, .crtc_gs = 0x80280028, .crtc_vpos_gs = 0x02830002, .crtc_rev = 0x00400008, .crtc_dclk = 0xA0000000, .crtc_gclk = 0x8015010F, .crtc_goe = 0x80100110, .crtc_ps1_active = 0x41060010, .pll_freq = 75, .fast_pll_freq = 100, .sysclk_src = CLK_SRC_PLL, .sysclk_divider = 0, .pixclk_src = CLK_SRC_PLL, .pixclk_divider = 2, .pixclk_divider_rotated = 6, },{ .xres = 240, .yres = 320, .left_margin = 0x27, .right_margin = 0x2e, .upper_margin = 0x01, .lower_margin = 0x00, .crtc_ss = 0x81170027, .crtc_ls = 0xA0140000, .crtc_gs = 0xC0140014, .crtc_vpos_gs = 0x00010141, .crtc_rev = 0x00400008, .crtc_dclk = 0xA0000000, .crtc_gclk = 0x8015010F, .crtc_goe = 0x80100110, .crtc_ps1_active = 0x41060010, .pll_freq = 0, .fast_pll_freq = 0, .sysclk_src = CLK_SRC_XTAL, .sysclk_divider = 0, .pixclk_src = CLK_SRC_XTAL, .pixclk_divider = 1, .pixclk_divider_rotated = 1, }, }; static struct w100fb_mach_info corgi_fb_info = { .tg = &corgi_lcdtg_info, .init_mode = INIT_MODE_ROTATED, .mem = &corgi_fb_mem, .regs = &corgi_fb_regs, .modelist = &corgi_fb_modes[0], .num_modes = 2, .gpio = &corgi_fb_gpio, .xtal_freq = 12500000, .xtal_dbl = 0, }; static struct resource corgi_fb_resources[] = { [0] = { .start = 0x08000000, .end = 0x08ffffff, .flags = IORESOURCE_MEM, }, }; static struct platform_device corgifb_device = { .name = "w100fb", .id = -1, .num_resources = ARRAY_SIZE(corgi_fb_resources), .resource = corgi_fb_resources, .dev = { .platform_data = &corgi_fb_info, .parent = &corgissp_device.dev, }, }; /* * Corgi Backlight Device */ static void corgi_bl_kick_battery(void) { void (*kick_batt)(void); kick_batt = symbol_get(sharpsl_battery_kick); if (kick_batt) { kick_batt(); symbol_put(sharpsl_battery_kick); } } static void corgi_bl_set_intensity(int intensity) { if (intensity > 0x10) intensity += 0x10; /* Bits 0-4 are accessed via the SSP interface */ corgi_ssp_blduty_set(intensity & 0x1f); /* Bit 5 is via SCOOP */ if (intensity & 0x0020) set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT); else reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_BACKLIGHT_CONT); } static struct generic_bl_info corgi_bl_machinfo = { .name = "corgi-bl", .max_intensity = 0x2f, .default_intensity = 0x1f, .limit_mask = 0x0b, .set_bl_intensity = corgi_bl_set_intensity, .kick_battery = corgi_bl_kick_battery, }; static struct platform_device corgibl_device = { .name = "generic-bl", .dev = { .parent = &corgifb_device.dev, .platform_data = &corgi_bl_machinfo, }, .id = -1, }; /* * Corgi Keyboard Device */ static struct platform_device corgikbd_device = { .name = "corgi-keyboard", .id = -1, }; /* * Corgi LEDs */ static struct platform_device corgiled_device = { .name = "corgi-led", .id = -1, }; /* * Corgi Touch Screen Device */ static unsigned long (*get_hsync_invperiod)(struct device *dev); static void inline sharpsl_wait_sync(int gpio) { while((GPLR(gpio) & GPIO_bit(gpio)) == 0); while((GPLR(gpio) & GPIO_bit(gpio)) != 0); } static unsigned long corgi_get_hsync_invperiod(void) { if (!get_hsync_invperiod) get_hsync_invperiod = symbol_get(w100fb_get_hsynclen); if (!get_hsync_invperiod) return 0; return get_hsync_invperiod(&corgifb_device.dev); } static void corgi_put_hsync(void) { if (get_hsync_invperiod) symbol_put(w100fb_get_hsynclen); get_hsync_invperiod = NULL; } static void corgi_wait_hsync(void) { sharpsl_wait_sync(CORGI_GPIO_HSYNC); } static struct resource corgits_resources[] = { [0] = { .start = CORGI_IRQ_GPIO_TP_INT, .end = CORGI_IRQ_GPIO_TP_INT, .flags = IORESOURCE_IRQ, }, }; static struct corgits_machinfo corgi_ts_machinfo = { .get_hsync_invperiod = corgi_get_hsync_invperiod, .put_hsync = corgi_put_hsync, .wait_hsync = corgi_wait_hsync, }; static struct platform_device corgits_device = { .name = "corgi-ts", .dev = { .parent = &corgissp_device.dev, .platform_data = &corgi_ts_machinfo, }, .id = -1, .num_resources = ARRAY_SIZE(corgits_resources), .resource = corgits_resources, }; /* * MMC/SD Device * * The card detect interrupt isn't debounced so we delay it by 250ms * to give the card a chance to fully insert/eject. */ static struct pxamci_platform_data corgi_mci_platform_data; static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data) { int err; /* setup GPIO for PXA25x MMC controller */ pxa_gpio_mode(GPIO6_MMCCLK_MD); pxa_gpio_mode(GPIO8_MMCCS0_MD); pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN); pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT); corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250); err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "MMC card detect", data); if (err) printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); return err; } static void corgi_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; if (( 1 << vdd) & p_d->ocr_mask) GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR); else GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR); } static int corgi_mci_get_ro(struct device *dev) { return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP); } static void corgi_mci_exit(struct device *dev, void *data) { free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data); } static struct pxamci_platform_data corgi_mci_platform_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .init = corgi_mci_init, .get_ro = corgi_mci_get_ro, .setpower = corgi_mci_setpower, .exit = corgi_mci_exit, }; /* * Irda */ static void corgi_irda_transceiver_mode(struct device *dev, int mode) { if (mode & IR_OFF) GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON); else GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON); pxa2xx_transceiver_mode(dev, mode); } static struct pxaficp_platform_data corgi_ficp_platform_data = { .transceiver_cap = IR_SIRMODE | IR_OFF, .transceiver_mode = corgi_irda_transceiver_mode, }; /* * USB Device Controller */ static struct pxa2xx_udc_mach_info udc_info __initdata = { /* no connect GPIO; corgi can't tell connection status */ .gpio_pullup = CORGI_GPIO_USB_PULLUP, }; static struct platform_device *devices[] __initdata = { &corgiscoop_device, &corgissp_device, &corgifb_device, &corgikbd_device, &corgibl_device, &corgits_device, &corgiled_device, }; static void corgi_poweroff(void) { if (!machine_is_corgi()) /* Green LED off tells the bootloader to halt */ reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN); arm_machine_restart('h'); } static void corgi_restart(char mode) { if (!machine_is_corgi()) /* Green LED on tells the bootloader to reboot */ set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN); arm_machine_restart('h'); } static void __init corgi_init(void) { pm_power_off = corgi_poweroff; arm_pm_restart = corgi_restart; /* setup sleep mode values */ PWER = 0x00000002; PFER = 0x00000000; PRER = 0x00000002; PGSR0 = 0x0158C000; PGSR1 = 0x00FF0080; PGSR2 = 0x0001C004; /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */ PCFR |= PCFR_OPDE; corgi_ssp_set_machinfo(&corgi_ssp_machinfo); pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT); pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN); pxa_set_udc_info(&udc_info); pxa_set_mci_info(&corgi_mci_platform_data); pxa_set_ficp_info(&corgi_ficp_platform_data); platform_scoop_config = &corgi_pcmcia_config; platform_add_devices(devices, ARRAY_SIZE(devices)); } static void __init fixup_corgi(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi) { sharpsl_save_param(); mi->nr_banks=1; mi->bank[0].start = 0xa0000000; mi->bank[0].node = 0; if (machine_is_corgi()) mi->bank[0].size = (32*1024*1024); else mi->bank[0].size = (64*1024*1024); } #ifdef CONFIG_MACH_CORGI MACHINE_START(CORGI, "SHARP Corgi") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_corgi, .map_io = pxa_map_io, .init_irq = pxa25x_init_irq, .init_machine = corgi_init, .timer = &pxa_timer, MACHINE_END #endif #ifdef CONFIG_MACH_SHEPHERD MACHINE_START(SHEPHERD, "SHARP Shepherd") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_corgi, .map_io = pxa_map_io, .init_irq = pxa25x_init_irq, .init_machine = corgi_init, .timer = &pxa_timer, MACHINE_END #endif #ifdef CONFIG_MACH_HUSKY MACHINE_START(HUSKY, "SHARP Husky") .phys_io = 0x40000000, .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .fixup = fixup_corgi, .map_io = pxa_map_io, .init_irq = pxa25x_init_irq, .init_machine = corgi_init, .timer = &pxa_timer, MACHINE_END #endif