| /* |
| * 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 <linux/gpio.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/syscore_ops.h> |
| #include <linux/interrupt.h> |
| #include <linux/sched.h> |
| #include <linux/bitops.h> |
| #include <linux/fb.h> |
| #include <linux/ioport.h> |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/input.h> |
| #include <linux/gpio_keys.h> |
| #include <linux/pwm_backlight.h> |
| #include <linux/smc91x.h> |
| #include <linux/i2c/pxa-i2c.h> |
| #include <linux/slab.h> |
| #include <linux/leds.h> |
| |
| #include <asm/types.h> |
| #include <asm/setup.h> |
| #include <asm/memory.h> |
| #include <asm/mach-types.h> |
| #include <mach/hardware.h> |
| #include <asm/irq.h> |
| #include <asm/sizes.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/irq.h> |
| #include <asm/mach/flash.h> |
| |
| #include <mach/pxa27x.h> |
| #include <mach/mainstone.h> |
| #include <mach/audio.h> |
| #include <linux/platform_data/video-pxafb.h> |
| #include <linux/platform_data/mmc-pxamci.h> |
| #include <linux/platform_data/irda-pxaficp.h> |
| #include <linux/platform_data/usb-ohci-pxa27x.h> |
| #include <linux/platform_data/keypad-pxa27x.h> |
| #include <mach/smemc.h> |
| |
| #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 int 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; |
| } |
| return 0; |
| } |
| |
| 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 |