diff options
Diffstat (limited to 'arch/arm/mach-pxa/lubbock.c')
| -rw-r--r-- | arch/arm/mach-pxa/lubbock.c | 387 |
1 files changed, 298 insertions, 89 deletions
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c index b464bc88ff9..d8a1be619f2 100644 --- a/arch/arm/mach-pxa/lubbock.c +++ b/arch/arm/mach-pxa/lubbock.c @@ -11,21 +11,30 @@ * 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/module.h> #include <linux/kernel.h> #include <linux/init.h> +#include <linux/io.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/major.h> #include <linux/fb.h> #include <linux/interrupt.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> +#include <linux/smc91x.h> +#include <linux/slab.h> +#include <linux/leds.h> + +#include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> +#include <linux/spi/pxa2xx_spi.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> @@ -36,18 +45,74 @@ #include <asm/hardware/sa1111.h> -#include <asm/arch/pxa-regs.h> -#include <asm/arch/lubbock.h> -#include <asm/arch/udc.h> -#include <asm/arch/irda.h> -#include <asm/arch/pxafb.h> -#include <asm/arch/mmc.h> +#include <mach/pxa25x.h> +#include <mach/audio.h> +#include <mach/lubbock.h> +#include <mach/udc.h> +#include <linux/platform_data/irda-pxaficp.h> +#include <linux/platform_data/video-pxafb.h> +#include <linux/platform_data/mmc-pxamci.h> +#include <mach/pm.h> +#include <mach/smemc.h> #include "generic.h" +#include "clock.h" +#include "devices.h" + +static unsigned long lubbock_pin_config[] __initdata = { + GPIO15_nCS_1, /* CS1 - Flash */ + GPIO78_nCS_2, /* CS2 - Baseboard FGPA */ + GPIO79_nCS_3, /* CS3 - SMC ethernet */ + GPIO80_nCS_4, /* CS4 - SA1111 */ + + /* SSP data pins */ + GPIO23_SSP1_SCLK, + GPIO25_SSP1_TXD, + GPIO26_SSP1_RXD, + + /* AC97 */ + GPIO28_AC97_BITCLK, + GPIO29_AC97_SDATA_IN_0, + GPIO30_AC97_SDATA_OUT, + GPIO31_AC97_SYNC, + + /* LCD - 16bpp DSTN */ + GPIOxx_LCD_DSTN_16BPP, + + /* BTUART */ + GPIO42_BTUART_RXD, + GPIO43_BTUART_TXD, + GPIO44_BTUART_CTS, + GPIO45_BTUART_RTS, + + /* PC Card */ + GPIO48_nPOE, + GPIO49_nPWE, + GPIO50_nPIOR, + GPIO51_nPIOW, + GPIO52_nPCE_1, + GPIO53_nPCE_2, + GPIO54_nPSKTSEL, + GPIO55_nPREG, + GPIO56_nPWAIT, + GPIO57_nIOIS16, + + /* MMC */ + GPIO6_MMC_CLK, + GPIO8_MMC_CS0, + + /* wakeup */ + GPIO1_GPIO | WAKEUP_ON_EDGE_RISE, +}; - +#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010) #define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080) +void lubbock_set_hexled(uint32_t value) +{ + LUB_HEXLED = value; +} + void lubbock_set_misc_wr(unsigned int mask, unsigned int set) { unsigned long flags; @@ -60,36 +125,36 @@ EXPORT_SYMBOL(lubbock_set_misc_wr); static unsigned long lubbock_irq_enabled; -static void lubbock_mask_irq(unsigned int irq) +static void lubbock_mask_irq(struct irq_data *d) { - int lubbock_irq = (irq - LUBBOCK_IRQ(0)); + int lubbock_irq = (d->irq - LUBBOCK_IRQ(0)); LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq)); } -static void lubbock_unmask_irq(unsigned int irq) +static void lubbock_unmask_irq(struct irq_data *d) { - int lubbock_irq = (irq - LUBBOCK_IRQ(0)); + int lubbock_irq = (d->irq - LUBBOCK_IRQ(0)); /* the irq can be acknowledged only if deasserted, so it's done here */ LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq); LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq)); } -static struct irqchip lubbock_irq_chip = { - .ack = lubbock_mask_irq, - .mask = lubbock_mask_irq, - .unmask = lubbock_unmask_irq, +static struct irq_chip lubbock_irq_chip = { + .name = "FPGA", + .irq_ack = lubbock_mask_irq, + .irq_mask = lubbock_mask_irq, + .irq_unmask = lubbock_unmask_irq, }; -static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc, - struct pt_regs *regs) +static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc) { unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; do { - GEDR(0) = GPIO_bit(0); /* clear our parent irq */ + /* clear our parent irq */ + desc->irq_data.chip->irq_ack(&desc->irq_data); if (likely(pending)) { irq = LUBBOCK_IRQ(0) + __ffs(pending); - desc = irq_desc + irq; - desc_handle_irq(irq, desc, regs); + generic_handle_irq(irq); } pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled; } while (pending); @@ -99,42 +164,37 @@ static void __init lubbock_init_irq(void) { int irq; - pxa_init_irq(); + pxa25x_init_irq(); /* setup extra lubbock irqs */ for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) { - set_irq_chip(irq, &lubbock_irq_chip); - set_irq_handler(irq, do_level_IRQ); + irq_set_chip_and_handler(irq, &lubbock_irq_chip, + handle_level_irq); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); } - set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler); - set_irq_type(IRQ_GPIO(0), IRQT_FALLING); + irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler); + irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING); } #ifdef CONFIG_PM -static int lubbock_irq_resume(struct sys_device *dev) +static void lubbock_irq_resume(void) { LUB_IRQ_MASK_EN = lubbock_irq_enabled; - return 0; } -static struct sysdev_class lubbock_irq_sysclass = { - set_kset_name("cpld_irq"), +static struct syscore_ops lubbock_irq_syscore_ops = { .resume = lubbock_irq_resume, }; -static struct sys_device lubbock_irq_device = { - .cls = &lubbock_irq_sysclass, -}; - static int __init lubbock_irq_device_init(void) { - int ret = sysdev_class_register(&lubbock_irq_sysclass); - if (ret == 0) - ret = sysdev_register(&lubbock_irq_device); - return ret; + if (machine_is_lubbock()) { + register_syscore_ops(&lubbock_irq_syscore_ops); + return 0; + } + return -ENODEV; } device_initcall(lubbock_irq_device_init); @@ -151,11 +211,6 @@ static struct pxa2xx_udc_mach_info udc_info __initdata = { // no D+ pullup; lubbock can't connect/disconnect in software }; -static struct platform_device lub_audio_device = { - .name = "pxa2xx-ac97", - .id = -1, -}; - static struct resource sa1111_resources[] = { [0] = { .start = 0x10000000, @@ -169,11 +224,66 @@ static struct resource sa1111_resources[] = { }, }; +static struct sa1111_platform_data sa1111_info = { + .irq_base = LUBBOCK_SA1111_IRQ_BASE, + .disable_devs = SA1111_DEVID_SAC, +}; + static struct platform_device sa1111_device = { .name = "sa1111", .id = -1, .num_resources = ARRAY_SIZE(sa1111_resources), .resource = sa1111_resources, + .dev = { + .platform_data = &sa1111_info, + }, +}; + +/* ADS7846 is connected through SSP ... and if your board has J5 populated, + * you can select it to replace the ucb1400 by switching the touchscreen cable + * (to J5) and poking board registers (as done below). Else it's only useful + * for the temperature sensors. + */ +static struct pxa2xx_spi_master pxa_ssp_master_info = { + .num_chipselect = 1, +}; + +static int lubbock_ads7846_pendown_state(void) +{ + /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */ + return 0; +} + +static struct ads7846_platform_data ads_info = { + .model = 7846, + .vref_delay_usecs = 100, /* internal, no cap */ + .get_pendown_state = lubbock_ads7846_pendown_state, + // .x_plate_ohms = 500, /* GUESS! */ + // .y_plate_ohms = 500, /* GUESS! */ +}; + +static void ads7846_cs(u32 command) +{ + static const unsigned TS_nCS = 1 << 11; + lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS); +} + +static struct pxa2xx_spi_chip ads_hw = { + .tx_threshold = 1, + .rx_threshold = 2, + .cs_control = ads7846_cs, +}; + +static struct spi_board_info spi_board_info[] __initdata = { { + .modalias = "ads7846", + .platform_data = &ads_info, + .controller_data = &ads_hw, + .irq = LUBBOCK_BB_IRQ, + .max_speed_hz = 120000 /* max sample rate at 3V */ + * 26 /* command + data + overhead */, + .bus_num = 1, + .chip_select = 0, +}, }; static struct resource smc91x_resources[] = { @@ -186,7 +296,7 @@ static struct resource smc91x_resources[] = { [1] = { .start = LUBBOCK_ETH_IRQ, .end = LUBBOCK_ETH_IRQ, - .flags = IORESOURCE_IRQ, + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, }, [2] = { .name = "smc91x-attrib", @@ -196,11 +306,18 @@ static struct resource smc91x_resources[] = { }, }; +static struct smc91x_platdata lubbock_smc91x_info = { + .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2, +}; + static struct platform_device smc91x_device = { .name = "smc91x", .id = -1, .num_resources = ARRAY_SIZE(smc91x_resources), .resource = smc91x_resources, + .dev = { + .platform_data = &lubbock_smc91x_info, + }, }; static struct resource flash_resources[] = { @@ -268,13 +385,12 @@ static struct platform_device lubbock_flash_device[2] = { static struct platform_device *devices[] __initdata = { &sa1111_device, - &lub_audio_device, &smc91x_device, &lubbock_flash_device[0], &lubbock_flash_device[1], }; -static struct pxafb_mach_info sharp_lm8v31 __initdata = { +static struct pxafb_mode_info sharp_lm8v31_mode = { .pixclock = 270000, .xres = 640, .yres = 480, @@ -287,16 +403,21 @@ static struct pxafb_mach_info sharp_lm8v31 __initdata = { .lower_margin = 0, .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, .cmap_greyscale = 0, +}; + +static struct pxafb_mach_info sharp_lm8v31 = { + .modes = &sharp_lm8v31_mode, + .num_modes = 1, .cmap_inverse = 0, .cmap_static = 0, - .lccr0 = LCCR0_SDS, - .lccr3 = LCCR3_PCP | LCCR3_Acb(255), + .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL | + LCD_AC_BIAS_FREQ(255), }; #define MMC_POLL_RATE msecs_to_jiffies(1000) static void lubbock_mmc_poll(unsigned long); -static irqreturn_t (*mmc_detect_int)(int, void *, struct pt_regs *); +static irq_handler_t mmc_detect_int; static struct timer_list mmc_timer = { .function = lubbock_mmc_poll, @@ -315,34 +436,30 @@ static void lubbock_mmc_poll(unsigned long data) if (LUB_IRQ_SET_CLR & (1 << 0)) mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); else { - (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL); + (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data); enable_irq(LUBBOCK_SD_IRQ); } } -static irqreturn_t lubbock_detect_int(int irq, void *data, struct pt_regs *regs) +static irqreturn_t lubbock_detect_int(int irq, void *data) { /* IRQ is level triggered; disable, and poll for removal */ disable_irq(irq); mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE); - return mmc_detect_int(irq, data, regs); + return mmc_detect_int(irq, data); } static int lubbock_mci_init(struct device *dev, - irqreturn_t (*detect_int)(int, void *, struct pt_regs *), + irq_handler_t detect_int, void *data) { - /* setup GPIO for PXA25x MMC controller */ - pxa_gpio_mode(GPIO6_MMCCLK_MD); - pxa_gpio_mode(GPIO8_MMCCS0_MD); - /* detect card insert/eject */ mmc_detect_int = detect_int; init_timer(&mmc_timer); mmc_timer.data = (unsigned long) data; return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int, - SA_SAMPLE_RANDOM, "lubbock-sd-detect", data); + 0, "lubbock-sd-detect", data); } static int lubbock_mci_get_ro(struct device *dev) @@ -357,11 +474,14 @@ static void lubbock_mci_exit(struct device *dev, void *data) } static struct pxamci_platform_data lubbock_mci_platform_data = { - .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, - .detect_delay = 1, - .init = lubbock_mci_init, - .get_ro = lubbock_mci_get_ro, - .exit = lubbock_mci_exit, + .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, + .detect_delay_ms = 10, + .init = lubbock_mci_init, + .get_ro = lubbock_mci_get_ro, + .exit = lubbock_mci_exit, + .gpio_card_detect = -1, + .gpio_card_ro = -1, + .gpio_power = -1, }; static void lubbock_irda_transceiver_mode(struct device *dev, int mode) @@ -374,25 +494,35 @@ static void lubbock_irda_transceiver_mode(struct device *dev, int mode) } else if (mode & IR_FIRMODE) { LUB_MISC_WR |= 1 << 4; } + pxa2xx_transceiver_mode(dev, mode); local_irq_restore(flags); } static struct pxaficp_platform_data lubbock_ficp_platform_data = { - .transceiver_cap = IR_SIRMODE | IR_FIRMODE, - .transceiver_mode = lubbock_irda_transceiver_mode, + .gpio_pwdown = -1, + .transceiver_cap = IR_SIRMODE | IR_FIRMODE, + .transceiver_mode = lubbock_irda_transceiver_mode, }; static void __init lubbock_init(void) { int flashboot = (LUB_CONF_SWITCHES & 1); + pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config)); + + pxa_set_ffuart_info(NULL); + pxa_set_btuart_info(NULL); + pxa_set_stuart_info(NULL); + + clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL); pxa_set_udc_info(&udc_info); - set_pxa_fb_info(&sharp_lm8v31); + pxa_set_fb_info(NULL, &sharp_lm8v31); pxa_set_mci_info(&lubbock_mci_platform_data); pxa_set_ficp_info(&lubbock_ficp_platform_data); + pxa_set_ac97_info(NULL); lubbock_flash_data[0].width = lubbock_flash_data[1].width = - (BOOT_DEF & 1) ? 2 : 4; + (__raw_readl(BOOT_DEF) & 1) ? 2 : 4; /* Compensate for the nROMBT switch which swaps the flash banks */ printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n", flashboot?"Flash":"ROM", flashboot); @@ -400,6 +530,9 @@ static void __init lubbock_init(void) lubbock_flash_data[flashboot^1].name = "application-flash"; lubbock_flash_data[flashboot].name = "boot-rom"; (void) platform_add_devices(devices, ARRAY_SIZE(devices)); + + pxa2xx_set_spi_info(1, &pxa_ssp_master_info); + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); } static struct map_desc lubbock_io_desc[] __initdata = { @@ -413,35 +546,111 @@ static struct map_desc lubbock_io_desc[] __initdata = { static void __init lubbock_map_io(void) { - pxa_map_io(); + pxa25x_map_io(); iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc)); - /* This enables the BTUART */ - pxa_gpio_mode(GPIO42_BTRXD_MD); - pxa_gpio_mode(GPIO43_BTTXD_MD); - pxa_gpio_mode(GPIO44_BTCTS_MD); - pxa_gpio_mode(GPIO45_BTRTS_MD); - - /* This is for the SMC chip select */ - pxa_gpio_mode(GPIO79_nCS_3_MD); - - /* setup sleep mode values */ - PWER = 0x00000002; - PFER = 0x00000000; - PRER = 0x00000002; - PGSR0 = 0x00008000; - PGSR1 = 0x003F0202; - PGSR2 = 0x0001C000; PCFR |= PCFR_OPDE; } +/* + * 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 lubbock_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; +} lubbock_leds[] = { + { "lubbock:D28", "default-on", }, + { "lubbock:D27", "cpu0", }, + { "lubbock:D26", "heartbeat" }, + { "lubbock:D25", }, + { "lubbock:D24", }, + { "lubbock:D23", }, + { "lubbock:D22", }, + { "lubbock:D21", }, +}; + +static void lubbock_led_set(struct led_classdev *cdev, + enum led_brightness b) +{ + struct lubbock_led *led = container_of(cdev, + struct lubbock_led, cdev); + u32 reg = LUB_DISC_BLNK_LED; + + if (b != LED_OFF) + reg |= led->mask; + else + reg &= ~led->mask; + + LUB_DISC_BLNK_LED = reg; +} + +static enum led_brightness lubbock_led_get(struct led_classdev *cdev) +{ + struct lubbock_led *led = container_of(cdev, + struct lubbock_led, cdev); + u32 reg = LUB_DISC_BLNK_LED; + + return (reg & led->mask) ? LED_FULL : LED_OFF; +} + +static int __init lubbock_leds_init(void) +{ + int i; + + if (!machine_is_lubbock()) + return -ENODEV; + + /* All ON */ + LUB_DISC_BLNK_LED |= 0xff; + for (i = 0; i < ARRAY_SIZE(lubbock_leds); i++) { + struct lubbock_led *led; + + led = kzalloc(sizeof(*led), GFP_KERNEL); + if (!led) + break; + + led->cdev.name = lubbock_leds[i].name; + led->cdev.brightness_set = lubbock_led_set; + led->cdev.brightness_get = lubbock_led_get; + led->cdev.default_trigger = lubbock_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(lubbock_leds_init); +#endif + MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)") /* Maintainer: MontaVista Software Inc. */ - .phys_ram = 0xa0000000, - .phys_io = 0x40000000, - .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .map_io = lubbock_map_io, + .nr_irqs = LUBBOCK_NR_IRQS, .init_irq = lubbock_init_irq, - .timer = &pxa_timer, + .handle_irq = pxa25x_handle_irq, + .init_time = pxa_timer_init, .init_machine = lubbock_init, + .restart = pxa_restart, MACHINE_END |