diff options
Diffstat (limited to 'arch/arm/mach-pxa/mainstone.c')
| -rw-r--r-- | arch/arm/mach-pxa/mainstone.c | 506 |
1 files changed, 367 insertions, 139 deletions
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index d5bda60209e..78b84c0dfc7 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -12,10 +12,10 @@ * 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/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/bitops.h> @@ -23,12 +23,19 @@ #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 <asm/hardware.h> +#include <mach/hardware.h> #include <asm/irq.h> #include <asm/sizes.h> @@ -37,49 +44,116 @@ #include <asm/mach/irq.h> #include <asm/mach/flash.h> -#include <asm/arch/pxa-regs.h> -#include <asm/arch/mainstone.h> -#include <asm/arch/audio.h> -#include <asm/arch/pxafb.h> -#include <asm/arch/mmc.h> -#include <asm/arch/irda.h> -#include <asm/arch/ohci.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(unsigned int irq) +static void mainstone_mask_irq(struct irq_data *d) { - int mainstone_irq = (irq - MAINSTONE_IRQ(0)); + int mainstone_irq = (d->irq - MAINSTONE_IRQ(0)); MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq)); } -static void mainstone_unmask_irq(unsigned int irq) +static void mainstone_unmask_irq(struct irq_data *d) { - int mainstone_irq = (irq - MAINSTONE_IRQ(0)); + 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 irqchip mainstone_irq_chip = { - .ack = mainstone_mask_irq, - .mask = mainstone_mask_irq, - .unmask = mainstone_unmask_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 irqdesc *desc, - struct pt_regs *regs) +static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled; do { - GEDR(0) = GPIO_bit(0); /* clear useless edge notification */ + /* clear useless edge notification */ + desc->irq_data.chip->irq_ack(&desc->irq_data); if (likely(pending)) { irq = MAINSTONE_IRQ(0) + __ffs(pending); - desc = irq_desc + irq; - desc_handle_irq(irq, desc, regs); + generic_handle_irq(irq); } pending = MST_INTSETCLR & mainstone_irq_enabled; } while (pending); @@ -89,13 +163,16 @@ static void __init mainstone_init_irq(void) { int irq; - pxa_init_irq(); + pxa27x_init_irq(); /* setup extra Mainstone irqs */ for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) { - set_irq_chip(irq, &mainstone_irq_chip); - set_irq_handler(irq, do_level_IRQ); - set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + 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); @@ -103,33 +180,27 @@ static void __init mainstone_init_irq(void) MST_INTMSKENA = 0; MST_INTSETCLR = 0; - set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler); - set_irq_type(IRQ_GPIO(0), IRQT_FALLING); + 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 int mainstone_irq_resume(struct sys_device *dev) +static void mainstone_irq_resume(void) { MST_INTMSKENA = mainstone_irq_enabled; - return 0; } -static struct sysdev_class mainstone_irq_sysclass = { - set_kset_name("cpld_irq"), +static struct syscore_ops mainstone_irq_syscore_ops = { .resume = mainstone_irq_resume, }; -static struct sys_device mainstone_irq_device = { - .cls = &mainstone_irq_sysclass, -}; - static int __init mainstone_irq_device_init(void) { - int ret = sysdev_class_register(&mainstone_irq_sysclass); - if (ret == 0) - ret = sysdev_register(&mainstone_irq_device); - return ret; + if (machine_is_mainstone()) + register_syscore_ops(&mainstone_irq_syscore_ops); + + return 0; } device_initcall(mainstone_irq_device_init); @@ -146,25 +217,33 @@ static struct resource smc91x_resources[] = { [1] = { .start = MAINSTONE_IRQ(3), .end = MAINSTONE_IRQ(3), - .flags = IORESOURCE_IRQ, + .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(snd_pcm_substream_t *substream, void *priv) +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(snd_pcm_substream_t *substream, void *priv) +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; @@ -190,12 +269,6 @@ static pxa2xx_audio_ops_t mst_audio_ops = { .resume = mst_audio_resume, }; -static struct platform_device mst_audio_device = { - .name = "pxa2xx-ac97", - .id = -1, - .dev = { .platform_data = &mst_audio_ops }, -}; - static struct resource flash_resources[] = { [0] = { .start = PXA_CS0_PHYS, @@ -259,23 +332,34 @@ static struct platform_device mst_flash_device[2] = { }, }; -static void mainstone_backlight_power(int on) +#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, + .enable_gpio = -1, +}; + +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) { - if (on) { - pxa_gpio_mode(GPIO16_PWM0_MD); - pxa_set_cken(CKEN0_PWM0, 1); - PWM_CTRL0 = 0; - PWM_PWDUTY0 = 0x3ff; - PWM_PERVAL0 = 0x3ff; - } else { - PWM_CTRL0 = 0; - PWM_PWDUTY0 = 0x0; - PWM_PERVAL0 = 0x3FF; - pxa_set_cken(CKEN0_PWM0, 0); - } + 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_mach_info toshiba_ltm04c380k __initdata = { +static struct pxafb_mode_info toshiba_ltm04c380k_mode = { .pixclock = 50000, .xres = 640, .yres = 480, @@ -287,12 +371,9 @@ static struct pxafb_mach_info toshiba_ltm04c380k __initdata = { .upper_margin = 0, .lower_margin = 0, .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, - .lccr0 = LCCR0_Act, - .lccr3 = LCCR3_PCP, - .pxafb_backlight_power = mainstone_backlight_power, }; -static struct pxafb_mach_info toshiba_ltm035a776c __initdata = { +static struct pxafb_mode_info toshiba_ltm035a776c_mode = { .pixclock = 110000, .xres = 240, .yres = 320, @@ -304,52 +385,43 @@ static struct pxafb_mach_info toshiba_ltm035a776c __initdata = { .upper_margin = 1, .lower_margin = 10, .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, - .lccr0 = LCCR0_Act, - .lccr3 = LCCR3_PCP, - .pxafb_backlight_power = mainstone_backlight_power, }; -static int mainstone_mci_init(struct device *dev, irqreturn_t (*mstone_detect_int)(int, void *, struct pt_regs *), void *data) +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; - /* - * setup GPIO for PXA27x MMC controller - */ - pxa_gpio_mode(GPIO32_MMCCLK_MD); - pxa_gpio_mode(GPIO112_MMCCMD_MD); - pxa_gpio_mode(GPIO92_MMCDAT0_MD); - pxa_gpio_mode(GPIO109_MMCDAT1_MD); - pxa_gpio_mode(GPIO110_MMCDAT2_MD); - pxa_gpio_mode(GPIO111_MMCDAT3_MD); - /* 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, SA_INTERRUPT, + err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, 0, "MMC card detect", data); - if (err) { + if (err) printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); - return -1; - } - return 0; + return err; } -static void mainstone_mci_setpower(struct device *dev, unsigned int vdd) +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", __FUNCTION__); + 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", __FUNCTION__); + 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) @@ -358,10 +430,13 @@ static void mainstone_mci_exit(struct device *dev, void *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, + .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) @@ -374,6 +449,7 @@ static void mainstone_irda_transceiver_mode(struct device *dev, int mode) } 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 { @@ -383,41 +459,112 @@ static void mainstone_irda_transceiver_mode(struct device *dev, int mode) } static struct pxaficp_platform_data mainstone_ficp_platform_data = { - .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF, - .transceiver_mode = mainstone_irda_transceiver_mode, + .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_audio_device, &mst_flash_device[0], &mst_flash_device[1], + &mst_gpio_keys_device, }; -static int mainstone_ohci_init(struct device *dev) -{ - /* setup Port1 GPIO pin. */ - pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */ - pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */ +static struct pxaohci_platform_data mainstone_ohci_platform_data = { + .port_mode = PMM_PERPORT_MODE, + .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, +}; - /* Set the Power Control Polarity Low and Power Sense - Polarity Low to active low. */ - UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) & - ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE); +#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), +}; - return 0; -} +static struct matrix_keymap_data mainstone_matrix_keymap_data = { + .keymap = mainstone_matrix_keys, + .keymap_size = ARRAY_SIZE(mainstone_matrix_keys), +}; -static struct pxaohci_platform_data mainstone_ohci_platform_data = { - .port_mode = PMM_PERPORT_MODE, - .init = mainstone_ohci_init, +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) */ - mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4; + 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 */ @@ -433,24 +580,25 @@ static void __init mainstone_init(void) */ ARB_CNTRL = ARB_CORE_PARK | 0x234; - /* - * On Mainstone, we route AC97_SYSCLK via GPIO45 to - * the audio daughter card - */ - pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD); - 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) - set_pxa_fb_info(&toshiba_ltm04c380k); + mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode; else - set_pxa_fb_info(&toshiba_ltm035a776c); + 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(); } @@ -465,34 +613,114 @@ static struct map_desc mainstone_io_desc[] __initdata = { static void __init mainstone_map_io(void) { - pxa_map_io(); + pxa27x_map_io(); iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc)); - /* initialize sleep mode regs (wake-up sources, etc) */ - PGSR0 = 0x00008800; - PGSR1 = 0x00000002; - PGSR2 = 0x0001FC00; - PGSR3 = 0x00001F81; - PWER = 0xC0000002; - PRER = 0x00000002; - PFER = 0x00000002; /* for use I SRAM as framebuffer. */ PSLR |= 0xF04; PCFR = 0x66; - /* For Keypad wakeup. */ - KPC &=~KPC_ASACT; - KPC |=KPC_AS; - PKWR = 0x000FD000; - /* Need read PKWR back after set it. */ - PKWR; } +/* + * 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. */ - .phys_io = 0x40000000, - .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .atag_offset = 0x100, /* BLOB boot parameter setting */ .map_io = mainstone_map_io, + .nr_irqs = MAINSTONE_NR_IRQS, .init_irq = mainstone_init_irq, - .timer = &pxa_timer, + .handle_irq = pxa27x_handle_irq, + .init_time = pxa_timer_init, .init_machine = mainstone_init, + .restart = pxa_restart, MACHINE_END |