/* * linux/arch/arm/mach-pxa/mainstone.c * * Support for the Intel HCDDBBVA0 Development Platform. * (go figure how they came up with such name...) * * Author: Nicolas Pitre * Created: Nov 05, 2002 * Copyright: MontaVista Software Inc. * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "generic.h" #include "devices.h" static unsigned long mainstone_pin_config[] = { /* Chip Select */ GPIO15_nCS_1, /* LCD - 16bpp Active TFT */ GPIOxx_LCD_TFT_16BPP, GPIO16_PWM0_OUT, /* Backlight */ /* MMC */ GPIO32_MMC_CLK, GPIO112_MMC_CMD, GPIO92_MMC_DAT_0, GPIO109_MMC_DAT_1, GPIO110_MMC_DAT_2, GPIO111_MMC_DAT_3, /* USB Host Port 1 */ GPIO88_USBH1_PWR, GPIO89_USBH1_PEN, /* PC Card */ GPIO48_nPOE, GPIO49_nPWE, GPIO50_nPIOR, GPIO51_nPIOW, GPIO85_nPCE_1, GPIO54_nPCE_2, GPIO79_PSKTSEL, GPIO55_nPREG, GPIO56_nPWAIT, GPIO57_nIOIS16, /* AC97 */ GPIO28_AC97_BITCLK, GPIO29_AC97_SDATA_IN_0, GPIO30_AC97_SDATA_OUT, GPIO31_AC97_SYNC, GPIO45_AC97_SYSCLK, /* Keypad */ GPIO93_KP_DKIN_0, GPIO94_KP_DKIN_1, GPIO95_KP_DKIN_2, GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH, GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH, GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH, GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH, GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH, GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH, GPIO103_KP_MKOUT_0, GPIO104_KP_MKOUT_1, GPIO105_KP_MKOUT_2, GPIO106_KP_MKOUT_3, GPIO107_KP_MKOUT_4, GPIO108_KP_MKOUT_5, GPIO96_KP_MKOUT_6, /* I2C */ GPIO117_I2C_SCL, GPIO118_I2C_SDA, /* GPIO */ GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, }; static unsigned long mainstone_irq_enabled; static void mainstone_mask_irq(struct irq_data *d) { int mainstone_irq = (d->irq - MAINSTONE_IRQ(0)); MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq)); } static void mainstone_unmask_irq(struct irq_data *d) { int mainstone_irq = (d->irq - MAINSTONE_IRQ(0)); /* the irq can be acknowledged only if deasserted, so it's done here */ MST_INTSETCLR &= ~(1 << mainstone_irq); MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq)); } static struct irq_chip mainstone_irq_chip = { .name = "FPGA", .irq_ack = mainstone_mask_irq, .irq_mask = mainstone_mask_irq, .irq_unmask = mainstone_unmask_irq, }; static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled; do { /* clear useless edge notification */ desc->irq_data.chip->irq_ack(&desc->irq_data); if (likely(pending)) { irq = MAINSTONE_IRQ(0) + __ffs(pending); generic_handle_irq(irq); } pending = MST_INTSETCLR & mainstone_irq_enabled; } while (pending); } static void __init mainstone_init_irq(void) { int irq; pxa27x_init_irq(); /* setup extra Mainstone irqs */ for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) { irq_set_chip_and_handler(irq, &mainstone_irq_chip, handle_level_irq); if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14)) set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN); else set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } set_irq_flags(MAINSTONE_IRQ(8), 0); set_irq_flags(MAINSTONE_IRQ(12), 0); MST_INTMSKENA = 0; MST_INTSETCLR = 0; irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler); irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING); } #ifdef CONFIG_PM static void mainstone_irq_resume(void) { MST_INTMSKENA = mainstone_irq_enabled; } static struct syscore_ops mainstone_irq_syscore_ops = { .resume = mainstone_irq_resume, }; static int __init mainstone_irq_device_init(void) { if (machine_is_mainstone()) register_syscore_ops(&mainstone_irq_syscore_ops); return 0; } device_initcall(mainstone_irq_device_init); #endif static struct resource smc91x_resources[] = { [0] = { .start = (MST_ETH_PHYS + 0x300), .end = (MST_ETH_PHYS + 0xfffff), .flags = IORESOURCE_MEM, }, [1] = { .start = MAINSTONE_IRQ(3), .end = MAINSTONE_IRQ(3), .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, } }; static struct smc91x_platdata mainstone_smc91x_info = { .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA, }; static struct platform_device smc91x_device = { .name = "smc91x", .id = 0, .num_resources = ARRAY_SIZE(smc91x_resources), .resource = smc91x_resources, .dev = { .platform_data = &mainstone_smc91x_info, }, }; static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv) { if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF; return 0; } static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv) { if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF; } static long mst_audio_suspend_mask; static void mst_audio_suspend(void *priv) { mst_audio_suspend_mask = MST_MSCWR2; MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF; } static void mst_audio_resume(void *priv) { MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF; } static pxa2xx_audio_ops_t mst_audio_ops = { .startup = mst_audio_startup, .shutdown = mst_audio_shutdown, .suspend = mst_audio_suspend, .resume = mst_audio_resume, }; static struct resource flash_resources[] = { [0] = { .start = PXA_CS0_PHYS, .end = PXA_CS0_PHYS + SZ_64M - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = PXA_CS1_PHYS, .end = PXA_CS1_PHYS + SZ_64M - 1, .flags = IORESOURCE_MEM, }, }; static struct mtd_partition mainstoneflash0_partitions[] = { { .name = "Bootloader", .size = 0x00040000, .offset = 0, .mask_flags = MTD_WRITEABLE /* force read-only */ },{ .name = "Kernel", .size = 0x00400000, .offset = 0x00040000, },{ .name = "Filesystem", .size = MTDPART_SIZ_FULL, .offset = 0x00440000 } }; static struct flash_platform_data mst_flash_data[2] = { { .map_name = "cfi_probe", .parts = mainstoneflash0_partitions, .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions), }, { .map_name = "cfi_probe", .parts = NULL, .nr_parts = 0, } }; static struct platform_device mst_flash_device[2] = { { .name = "pxa2xx-flash", .id = 0, .dev = { .platform_data = &mst_flash_data[0], }, .resource = &flash_resources[0], .num_resources = 1, }, { .name = "pxa2xx-flash", .id = 1, .dev = { .platform_data = &mst_flash_data[1], }, .resource = &flash_resources[1], .num_resources = 1, }, }; #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) static struct platform_pwm_backlight_data mainstone_backlight_data = { .pwm_id = 0, .max_brightness = 1023, .dft_brightness = 1023, .pwm_period_ns = 78770, }; static struct platform_device mainstone_backlight_device = { .name = "pwm-backlight", .dev = { .parent = &pxa27x_device_pwm0.dev, .platform_data = &mainstone_backlight_data, }, }; static void __init mainstone_backlight_register(void) { int ret = platform_device_register(&mainstone_backlight_device); if (ret) printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret); } #else #define mainstone_backlight_register() do { } while (0) #endif static struct pxafb_mode_info toshiba_ltm04c380k_mode = { .pixclock = 50000, .xres = 640, .yres = 480, .bpp = 16, .hsync_len = 1, .left_margin = 0x9f, .right_margin = 1, .vsync_len = 44, .upper_margin = 0, .lower_margin = 0, .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, }; static struct pxafb_mode_info toshiba_ltm035a776c_mode = { .pixclock = 110000, .xres = 240, .yres = 320, .bpp = 16, .hsync_len = 4, .left_margin = 8, .right_margin = 20, .vsync_len = 3, .upper_margin = 1, .lower_margin = 10, .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, }; static struct pxafb_mach_info mainstone_pxafb_info = { .num_modes = 1, .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, }; static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data) { int err; /* make sure SD/Memory Stick multiplexer's signals * are routed to MMC controller */ MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL; err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED, "MMC card detect", data); if (err) printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); return err; } static void mainstone_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; if (( 1 << vdd) & p_d->ocr_mask) { printk(KERN_DEBUG "%s: on\n", __func__); MST_MSCWR1 |= MST_MSCWR1_MMC_ON; MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL; } else { printk(KERN_DEBUG "%s: off\n", __func__); MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON; } } static void mainstone_mci_exit(struct device *dev, void *data) { free_irq(MAINSTONE_MMC_IRQ, data); } static struct pxamci_platform_data mainstone_mci_platform_data = { .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, .init = mainstone_mci_init, .setpower = mainstone_mci_setpower, .exit = mainstone_mci_exit, .gpio_card_detect = -1, .gpio_card_ro = -1, .gpio_power = -1, }; static void mainstone_irda_transceiver_mode(struct device *dev, int mode) { unsigned long flags; local_irq_save(flags); if (mode & IR_SIRMODE) { MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR; } else if (mode & IR_FIRMODE) { MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR; } pxa2xx_transceiver_mode(dev, mode); if (mode & IR_OFF) { MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF; } else { MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL; } local_irq_restore(flags); } static struct pxaficp_platform_data mainstone_ficp_platform_data = { .gpio_pwdown = -1, .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, .transceiver_mode = mainstone_irda_transceiver_mode, }; static struct gpio_keys_button gpio_keys_button[] = { [0] = { .desc = "wakeup", .code = KEY_SUSPEND, .type = EV_KEY, .gpio = 1, .wakeup = 1, }, }; static struct gpio_keys_platform_data mainstone_gpio_keys = { .buttons = gpio_keys_button, .nbuttons = 1, }; static struct platform_device mst_gpio_keys_device = { .name = "gpio-keys", .id = -1, .dev = { .platform_data = &mainstone_gpio_keys, }, }; static struct platform_device *platform_devices[] __initdata = { &smc91x_device, &mst_flash_device[0], &mst_flash_device[1], &mst_gpio_keys_device, }; static struct pxaohci_platform_data mainstone_ohci_platform_data = { .port_mode = PMM_PERPORT_MODE, .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, }; #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE) static const unsigned int mainstone_matrix_keys[] = { KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C), KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F), KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I), KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L), KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O), KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R), KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U), KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X), KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z), KEY(0, 4, KEY_DOT), /* . */ KEY(1, 4, KEY_CLOSE), /* @ */ KEY(4, 4, KEY_SLASH), KEY(5, 4, KEY_BACKSLASH), KEY(0, 5, KEY_HOME), KEY(1, 5, KEY_LEFTSHIFT), KEY(2, 5, KEY_SPACE), KEY(3, 5, KEY_SPACE), KEY(4, 5, KEY_ENTER), KEY(5, 5, KEY_BACKSPACE), KEY(0, 6, KEY_UP), KEY(1, 6, KEY_DOWN), KEY(2, 6, KEY_LEFT), KEY(3, 6, KEY_RIGHT), KEY(4, 6, KEY_SELECT), }; static struct matrix_keymap_data mainstone_matrix_keymap_data = { .keymap = mainstone_matrix_keys, .keymap_size = ARRAY_SIZE(mainstone_matrix_keys), }; struct pxa27x_keypad_platform_data mainstone_keypad_info = { .matrix_key_rows = 6, .matrix_key_cols = 7, .matrix_keymap_data = &mainstone_matrix_keymap_data, .enable_rotary0 = 1, .rotary0_up_key = KEY_UP, .rotary0_down_key = KEY_DOWN, .debounce_interval = 30, }; static void __init mainstone_init_keypad(void) { pxa_set_keypad_info(&mainstone_keypad_info); } #else static inline void mainstone_init_keypad(void) {} #endif static void __init mainstone_init(void) { int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */ pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config)); pxa_set_ffuart_info(NULL); pxa_set_btuart_info(NULL); pxa_set_stuart_info(NULL); mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4; mst_flash_data[1].width = 4; /* Compensate for SW7 which swaps the flash banks */ mst_flash_data[SW7].name = "processor-flash"; mst_flash_data[SW7 ^ 1].name = "mainboard-flash"; printk(KERN_NOTICE "Mainstone configured to boot from %s\n", mst_flash_data[0].name); /* system bus arbiter setting * - Core_Park * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 */ ARB_CNTRL = ARB_CORE_PARK | 0x234; platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); /* reading Mainstone's "Virtual Configuration Register" might be handy to select LCD type here */ if (0) mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode; else mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode; pxa_set_fb_info(NULL, &mainstone_pxafb_info); mainstone_backlight_register(); pxa_set_mci_info(&mainstone_mci_platform_data); pxa_set_ficp_info(&mainstone_ficp_platform_data); pxa_set_ohci_info(&mainstone_ohci_platform_data); pxa_set_i2c_info(NULL); pxa_set_ac97_info(&mst_audio_ops); mainstone_init_keypad(); } static struct map_desc mainstone_io_desc[] __initdata = { { /* CPLD */ .virtual = MST_FPGA_VIRT, .pfn = __phys_to_pfn(MST_FPGA_PHYS), .length = 0x00100000, .type = MT_DEVICE } }; static void __init mainstone_map_io(void) { pxa27x_map_io(); iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc)); /* for use I SRAM as framebuffer. */ PSLR |= 0xF04; PCFR = 0x66; } /* * Driver for the 8 discrete LEDs available for general use: * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays * so be sure to not monkey with them here. */ #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) struct mainstone_led { struct led_classdev cdev; u8 mask; }; /* * The triggers lines up below will only be used if the * LED triggers are compiled in. */ static const struct { const char *name; const char *trigger; } mainstone_leds[] = { { "mainstone:D28", "default-on", }, { "mainstone:D27", "cpu0", }, { "mainstone:D26", "heartbeat" }, { "mainstone:D25", }, { "mainstone:D24", }, { "mainstone:D23", }, { "mainstone:D22", }, { "mainstone:D21", }, }; static void mainstone_led_set(struct led_classdev *cdev, enum led_brightness b) { struct mainstone_led *led = container_of(cdev, struct mainstone_led, cdev); u32 reg = MST_LEDCTRL; if (b != LED_OFF) reg |= led->mask; else reg &= ~led->mask; MST_LEDCTRL = reg; } static enum led_brightness mainstone_led_get(struct led_classdev *cdev) { struct mainstone_led *led = container_of(cdev, struct mainstone_led, cdev); u32 reg = MST_LEDCTRL; return (reg & led->mask) ? LED_FULL : LED_OFF; } static int __init mainstone_leds_init(void) { int i; if (!machine_is_mainstone()) return -ENODEV; /* All ON */ MST_LEDCTRL |= 0xff; for (i = 0; i < ARRAY_SIZE(mainstone_leds); i++) { struct mainstone_led *led; led = kzalloc(sizeof(*led), GFP_KERNEL); if (!led) break; led->cdev.name = mainstone_leds[i].name; led->cdev.brightness_set = mainstone_led_set; led->cdev.brightness_get = mainstone_led_get; led->cdev.default_trigger = mainstone_leds[i].trigger; led->mask = BIT(i); if (led_classdev_register(NULL, &led->cdev) < 0) { kfree(led); break; } } return 0; } /* * Since we may have triggers on any subsystem, defer registration * until after subsystem_init. */ fs_initcall(mainstone_leds_init); #endif MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)") /* Maintainer: MontaVista Software Inc. */ .atag_offset = 0x100, /* BLOB boot parameter setting */ .map_io = mainstone_map_io, .nr_irqs = MAINSTONE_NR_IRQS, .init_irq = mainstone_init_irq, .handle_irq = pxa27x_handle_irq, .init_time = pxa_timer_init, .init_machine = mainstone_init, .restart = pxa_restart, MACHINE_END