diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-osk.c')
| -rw-r--r-- | arch/arm/mach-omap1/board-osk.c | 157 |
1 files changed, 101 insertions, 56 deletions
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index 5279e35..845c663 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -32,6 +32,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/i2c.h> +#include <linux/leds.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> @@ -183,11 +184,79 @@ static struct platform_device *osk5912_devices[] __initdata = { &osk5912_mcbsp1_device, }; +static struct gpio_led tps_leds[] = { + /* NOTE: D9 and D2 have hardware blink support. + * Also, D9 requires non-battery power. + */ + { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", }, + { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, + { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, + .default_trigger = "heartbeat", }, +}; + +static struct gpio_led_platform_data tps_leds_data = { + .num_leds = 3, + .leds = tps_leds, +}; + +static struct platform_device osk5912_tps_leds = { + .name = "leds-gpio", + .id = 0, + .dev.platform_data = &tps_leds_data, +}; + +static int osk_tps_setup(struct i2c_client *client, void *context) +{ + /* Set GPIO 1 HIGH to disable VBUS power supply; + * OHCI driver powers it up/down as needed. + */ + gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); + gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); + + /* Set GPIO 2 high so LED D3 is off by default */ + tps65010_set_gpio_out_value(GPIO2, HIGH); + + /* Set GPIO 3 low to take ethernet out of reset */ + gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); + gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); + + /* GPIO4 is VDD_DSP */ + gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); + gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); + /* REVISIT if DSP support isn't configured, power it off ... */ + + /* Let LED1 (D9) blink; leds-gpio may override it */ + tps65010_set_led(LED1, BLINK); + + /* Set LED2 off by default */ + tps65010_set_led(LED2, OFF); + + /* Enable LOW_PWR handshake */ + tps65010_set_low_pwr(ON); + + /* Switch VLDO2 to 3.0V for AIC23 */ + tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V + | TPS_LDO1_ENABLE); + + /* register these three LEDs */ + osk5912_tps_leds.dev.parent = &client->dev; + platform_device_register(&osk5912_tps_leds); + + return 0; +} + +static struct tps65010_board tps_board = { + .base = OSK_TPS_GPIO_BASE, + .outmask = 0x0f, + .setup = osk_tps_setup, +}; + static struct i2c_board_info __initdata osk_i2c_board_info[] = { { I2C_BOARD_INFO("tps65010", 0x48), - .type = "tps65010", .irq = OMAP_GPIO_IRQ(OMAP_MPUIO(1)), + .platform_data = &tps_board, + }, /* TODO when driver support is ready: * - aic23 audio chip at 0x1a @@ -198,19 +267,23 @@ static struct i2c_board_info __initdata osk_i2c_board_info[] = { static void __init osk_init_smc91x(void) { - if ((omap_request_gpio(0)) < 0) { + u32 l; + + if ((gpio_request(0, "smc_irq")) < 0) { printk("Error requesting gpio 0 for smc91x irq\n"); return; } /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ - EMIFS_CCS(1) |= 0x3; + l = omap_readl(EMIFS_CCS(1)); + l |= 0x3; + omap_writel(l, EMIFS_CCS(1)); } static void __init osk_init_cf(void) { omap_cfg_reg(M7_1610_GPIO62); - if ((omap_request_gpio(62)) < 0) { + if ((gpio_request(62, "cf_irq")) < 0) { printk("Error requesting gpio 62 for CF irq\n"); return; } @@ -334,7 +407,7 @@ static struct platform_device *mistral_devices[] __initdata = { static int mistral_get_pendown_state(void) { - return !omap_get_gpio_datain(4); + return !gpio_get_value(4); } static const struct ads7846_platform_data mistral_ts_info = { @@ -396,25 +469,31 @@ static void __init osk_mistral_init(void) omap_cfg_reg(W14_1610_CCP_DATAP); /* CAM_PWDN */ - if (omap_request_gpio(11) == 0) { + if (gpio_request(11, "cam_pwdn") == 0) { omap_cfg_reg(N20_1610_GPIO11); - omap_set_gpio_direction(11, 0 /* out */); - omap_set_gpio_dataout(11, 0 /* off */); + gpio_direction_output(11, 0); } else pr_debug("OSK+Mistral: CAM_PWDN is awol\n"); /* omap_cfg_reg(P19_1610_GPIO6); */ /* BUSY */ + gpio_request(6, "ts_busy"); + gpio_direction_input(6); + omap_cfg_reg(P20_1610_GPIO4); /* PENIRQ */ + gpio_request(4, "ts_int"); + gpio_direction_input(4); set_irq_type(OMAP_GPIO_IRQ(4), IRQT_FALLING); + spi_register_board_info(mistral_boardinfo, ARRAY_SIZE(mistral_boardinfo)); /* the sideways button (SW1) is for use as a "wakeup" button */ omap_cfg_reg(N15_1610_MPUIO2); - if (omap_request_gpio(OMAP_MPUIO(2)) == 0) { + if (gpio_request(OMAP_MPUIO(2), "wakeup") == 0) { int ret = 0; - omap_set_gpio_direction(OMAP_MPUIO(2), 1); + + gpio_direction_input(OMAP_MPUIO(2)); set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING); #ifdef CONFIG_PM /* share the IRQ in case someone wants to use the @@ -425,7 +504,7 @@ static void __init osk_mistral_init(void) IRQF_SHARED, "mistral_wakeup", &osk_mistral_wake_interrupt); if (ret != 0) { - omap_free_gpio(OMAP_MPUIO(2)); + gpio_free(OMAP_MPUIO(2)); printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n", ret); } else @@ -438,10 +517,8 @@ static void __init osk_mistral_init(void) * board, like the touchscreen, EEPROM, and wakeup (!) switch. */ omap_cfg_reg(PWL); - if (omap_request_gpio(2) == 0) { - omap_set_gpio_direction(2, 0 /* out */); - omap_set_gpio_dataout(2, 1 /* on */); - } + if (gpio_request(2, "lcd_pwr") == 0) + gpio_direction_output(2, 1); platform_add_devices(mistral_devices, ARRAY_SIZE(mistral_devices)); } @@ -453,20 +530,26 @@ static void __init osk_mistral_init(void) { } static void __init osk_init(void) { + u32 l; + /* Workaround for wrong CS3 (NOR flash) timing * There are some U-Boot versions out there which configure * wrong CS3 memory timings. This mainly leads to CRC * or similar errors if you use NOR flash (e.g. with JFFS2) */ - if (EMIFS_CCS(3) != EMIFS_CS3_VAL) - EMIFS_CCS(3) = EMIFS_CS3_VAL; + l = omap_readl(EMIFS_CCS(3)); + if (l != EMIFS_CS3_VAL) + omap_writel(EMIFS_CS3_VAL, EMIFS_CCS(3)); osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); osk_flash_resource.end += SZ_32M - 1; platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); omap_board_config = osk_config; omap_board_config_size = ARRAY_SIZE(osk_config); - USB_TRANSCEIVER_CTRL_REG |= (3 << 1); + + l = omap_readl(USB_TRANSCEIVER_CTRL); + l |= (3 << 1); + omap_writel(l, USB_TRANSCEIVER_CTRL); /* irq for tps65010 chip */ /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ @@ -484,44 +567,6 @@ static void __init osk_map_io(void) omap1_map_common_io(); } -#ifdef CONFIG_TPS65010 -static int __init osk_tps_init(void) -{ - if (!machine_is_omap_osk()) - return 0; - - /* Let LED1 (D9) blink */ - tps65010_set_led(LED1, BLINK); - - /* Disable LED 2 (D2) */ - tps65010_set_led(LED2, OFF); - - /* Set GPIO 1 HIGH to disable VBUS power supply; - * OHCI driver powers it up/down as needed. - */ - tps65010_set_gpio_out_value(GPIO1, HIGH); - - /* Set GPIO 2 low to turn on LED D3 */ - tps65010_set_gpio_out_value(GPIO2, HIGH); - - /* Set GPIO 3 low to take ethernet out of reset */ - tps65010_set_gpio_out_value(GPIO3, LOW); - - /* gpio4 for VDD_DSP */ - /* FIXME send power to DSP iff it's configured */ - - /* Enable LOW_PWR */ - tps65010_set_low_pwr(ON); - - /* Switch VLDO2 to 3.0V for AIC23 */ - tps65010_config_vregs1(TPS_LDO2_ENABLE | TPS_VLDO2_3_0V - | TPS_LDO1_ENABLE); - - return 0; -} -fs_initcall(osk_tps_init); -#endif - MACHINE_START(OMAP_OSK, "TI-OSK") /* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */ .phys_io = 0xfff00000, |