| /* |
| * linux/arch/arm/mach-omap2/board-omap3beagle.c |
| * |
| * Copyright (C) 2008 Texas Instruments |
| * |
| * Modified from mach-omap2/board-3430sdp.c |
| * |
| * Initial code: Syed Mohammed Khasim |
| * |
| * 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/kernel.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/delay.h> |
| #include <linux/err.h> |
| #include <linux/clk.h> |
| #include <linux/io.h> |
| #include <linux/leds.h> |
| #include <linux/gpio.h> |
| #include <linux/input.h> |
| #include <linux/gpio_keys.h> |
| #include <linux/opp.h> |
| |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/mtd/nand.h> |
| #include <linux/mmc/host.h> |
| |
| #include <linux/regulator/machine.h> |
| #include <linux/i2c/twl.h> |
| |
| #include <mach/hardware.h> |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/flash.h> |
| |
| #include <plat/board.h> |
| #include <plat/common.h> |
| #include <video/omapdss.h> |
| #include <video/omap-panel-generic-dpi.h> |
| #include <plat/gpmc.h> |
| #include <plat/nand.h> |
| #include <plat/usb.h> |
| #include <plat/omap_device.h> |
| |
| #include "mux.h" |
| #include "hsmmc.h" |
| #include "pm.h" |
| #include "common-board-devices.h" |
| |
| /* |
| * OMAP3 Beagle revision |
| * Run time detection of Beagle revision is done by reading GPIO. |
| * GPIO ID - |
| * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1 |
| * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0 |
| * C4 = GPIO173, GPIO172, GPIO171: 1 0 1 |
| * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0 |
| * XMC = GPIO173, GPIO172, GPIO171: 0 1 0 |
| */ |
| enum { |
| OMAP3BEAGLE_BOARD_UNKN = 0, |
| OMAP3BEAGLE_BOARD_AXBX, |
| OMAP3BEAGLE_BOARD_C1_3, |
| OMAP3BEAGLE_BOARD_C4, |
| OMAP3BEAGLE_BOARD_XM, |
| OMAP3BEAGLE_BOARD_XMC, |
| }; |
| |
| static u8 omap3_beagle_version; |
| |
| /* |
| * Board-specific configuration |
| * Defaults to BeagleBoard-xMC |
| */ |
| static struct { |
| int mmc1_gpio_wp; |
| int usb_pwr_level; |
| int reset_gpio; |
| int usr_button_gpio; |
| } beagle_config = { |
| .mmc1_gpio_wp = -EINVAL, |
| .usb_pwr_level = GPIOF_OUT_INIT_LOW, |
| .reset_gpio = 129, |
| .usr_button_gpio = 4, |
| }; |
| |
| static struct gpio omap3_beagle_rev_gpios[] __initdata = { |
| { 171, GPIOF_IN, "rev_id_0" }, |
| { 172, GPIOF_IN, "rev_id_1" }, |
| { 173, GPIOF_IN, "rev_id_2" }, |
| }; |
| |
| static void __init omap3_beagle_init_rev(void) |
| { |
| int ret; |
| u16 beagle_rev = 0; |
| |
| omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP); |
| omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP); |
| omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP); |
| |
| ret = gpio_request_array(omap3_beagle_rev_gpios, |
| ARRAY_SIZE(omap3_beagle_rev_gpios)); |
| if (ret < 0) { |
| printk(KERN_ERR "Unable to get revision detection GPIO pins\n"); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN; |
| return; |
| } |
| |
| beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1) |
| | (gpio_get_value(173) << 2); |
| |
| gpio_free_array(omap3_beagle_rev_gpios, |
| ARRAY_SIZE(omap3_beagle_rev_gpios)); |
| |
| switch (beagle_rev) { |
| case 7: |
| printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n"); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX; |
| beagle_config.mmc1_gpio_wp = 29; |
| beagle_config.reset_gpio = 170; |
| beagle_config.usr_button_gpio = 7; |
| break; |
| case 6: |
| printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n"); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3; |
| beagle_config.mmc1_gpio_wp = 23; |
| beagle_config.reset_gpio = 170; |
| beagle_config.usr_button_gpio = 7; |
| break; |
| case 5: |
| printk(KERN_INFO "OMAP3 Beagle Rev: C4\n"); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_C4; |
| beagle_config.mmc1_gpio_wp = 23; |
| beagle_config.reset_gpio = 170; |
| beagle_config.usr_button_gpio = 7; |
| break; |
| case 0: |
| printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n"); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_XM; |
| beagle_config.usb_pwr_level = GPIOF_OUT_INIT_HIGH; |
| break; |
| case 2: |
| printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n"); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC; |
| break; |
| default: |
| printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev); |
| omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN; |
| } |
| } |
| |
| static struct mtd_partition omap3beagle_nand_partitions[] = { |
| /* All the partition sizes are listed in terms of NAND block size */ |
| { |
| .name = "X-Loader", |
| .offset = 0, |
| .size = 4 * NAND_BLOCK_SIZE, |
| .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| }, |
| { |
| .name = "U-Boot", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ |
| .size = 15 * NAND_BLOCK_SIZE, |
| .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| }, |
| { |
| .name = "U-Boot Env", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */ |
| .size = 1 * NAND_BLOCK_SIZE, |
| }, |
| { |
| .name = "Kernel", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ |
| .size = 32 * NAND_BLOCK_SIZE, |
| }, |
| { |
| .name = "File System", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ |
| .size = MTDPART_SIZ_FULL, |
| }, |
| }; |
| |
| /* DSS */ |
| |
| static int beagle_enable_dvi(struct omap_dss_device *dssdev) |
| { |
| if (gpio_is_valid(dssdev->reset_gpio)) |
| gpio_set_value(dssdev->reset_gpio, 1); |
| |
| return 0; |
| } |
| |
| static void beagle_disable_dvi(struct omap_dss_device *dssdev) |
| { |
| if (gpio_is_valid(dssdev->reset_gpio)) |
| gpio_set_value(dssdev->reset_gpio, 0); |
| } |
| |
| static struct panel_generic_dpi_data dvi_panel = { |
| .name = "generic", |
| .platform_enable = beagle_enable_dvi, |
| .platform_disable = beagle_disable_dvi, |
| }; |
| |
| static struct omap_dss_device beagle_dvi_device = { |
| .type = OMAP_DISPLAY_TYPE_DPI, |
| .name = "dvi", |
| .driver_name = "generic_dpi_panel", |
| .data = &dvi_panel, |
| .phy.dpi.data_lines = 24, |
| .reset_gpio = -EINVAL, |
| }; |
| |
| static struct omap_dss_device beagle_tv_device = { |
| .name = "tv", |
| .driver_name = "venc", |
| .type = OMAP_DISPLAY_TYPE_VENC, |
| .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO, |
| }; |
| |
| static struct omap_dss_device *beagle_dss_devices[] = { |
| &beagle_dvi_device, |
| &beagle_tv_device, |
| }; |
| |
| static struct omap_dss_board_info beagle_dss_data = { |
| .num_devices = ARRAY_SIZE(beagle_dss_devices), |
| .devices = beagle_dss_devices, |
| .default_device = &beagle_dvi_device, |
| }; |
| |
| static void __init beagle_display_init(void) |
| { |
| int r; |
| |
| r = gpio_request_one(beagle_dvi_device.reset_gpio, GPIOF_OUT_INIT_LOW, |
| "DVI reset"); |
| if (r < 0) |
| printk(KERN_ERR "Unable to get DVI reset GPIO\n"); |
| } |
| |
| #include "sdram-micron-mt46h32m32lf-6.h" |
| |
| static struct omap2_hsmmc_info mmc[] = { |
| { |
| .mmc = 1, |
| .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, |
| .gpio_wp = -EINVAL, |
| }, |
| {} /* Terminator */ |
| }; |
| |
| static struct regulator_consumer_supply beagle_vmmc1_supply[] = { |
| REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"), |
| }; |
| |
| static struct regulator_consumer_supply beagle_vsim_supply[] = { |
| REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"), |
| }; |
| |
| static struct gpio_led gpio_leds[]; |
| |
| static int beagle_twl_gpio_setup(struct device *dev, |
| unsigned gpio, unsigned ngpio) |
| { |
| int r; |
| |
| if (beagle_config.mmc1_gpio_wp != -EINVAL) |
| omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT); |
| mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp; |
| /* gpio + 0 is "mmc0_cd" (input/IRQ) */ |
| mmc[0].gpio_cd = gpio + 0; |
| omap2_hsmmc_init(mmc); |
| |
| /* |
| * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active |
| * high / others active low) |
| * DVI reset GPIO is different between beagle revisions |
| */ |
| /* Valid for all -xM revisions */ |
| if (cpu_is_omap3630()) { |
| /* |
| * gpio + 1 on Xm controls the TFP410's enable line (active low) |
| * gpio + 2 control varies depending on the board rev as below: |
| * P7/P8 revisions(prototype): Camera EN |
| * A2+ revisions (production): LDO (DVI, serial, led blocks) |
| */ |
| r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW, |
| "nDVI_PWR_EN"); |
| if (r) |
| pr_err("%s: unable to configure nDVI_PWR_EN\n", |
| __func__); |
| r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, |
| "DVI_LDO_EN"); |
| if (r) |
| pr_err("%s: unable to configure DVI_LDO_EN\n", |
| __func__); |
| } else { |
| /* |
| * REVISIT: need ehci-omap hooks for external VBUS |
| * power switch and overcurrent detect |
| */ |
| if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC")) |
| pr_err("%s: unable to configure EHCI_nOC\n", __func__); |
| } |
| beagle_dvi_device.reset_gpio = beagle_config.reset_gpio; |
| |
| gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level, |
| "nEN_USB_PWR"); |
| |
| /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ |
| gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; |
| |
| return 0; |
| } |
| |
| static struct twl4030_gpio_platform_data beagle_gpio_data = { |
| .gpio_base = OMAP_MAX_GPIO_LINES, |
| .irq_base = TWL4030_GPIO_IRQ_BASE, |
| .irq_end = TWL4030_GPIO_IRQ_END, |
| .use_leds = true, |
| .pullups = BIT(1), |
| .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13) |
| | BIT(15) | BIT(16) | BIT(17), |
| .setup = beagle_twl_gpio_setup, |
| }; |
| |
| /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ |
| static struct regulator_init_data beagle_vmmc1 = { |
| .constraints = { |
| .min_uV = 1850000, |
| .max_uV = 3150000, |
| .valid_modes_mask = REGULATOR_MODE_NORMAL |
| | REGULATOR_MODE_STANDBY, |
| .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
| | REGULATOR_CHANGE_MODE |
| | REGULATOR_CHANGE_STATUS, |
| }, |
| .num_consumer_supplies = ARRAY_SIZE(beagle_vmmc1_supply), |
| .consumer_supplies = beagle_vmmc1_supply, |
| }; |
| |
| /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */ |
| static struct regulator_init_data beagle_vsim = { |
| .constraints = { |
| .min_uV = 1800000, |
| .max_uV = 3000000, |
| .valid_modes_mask = REGULATOR_MODE_NORMAL |
| | REGULATOR_MODE_STANDBY, |
| .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
| | REGULATOR_CHANGE_MODE |
| | REGULATOR_CHANGE_STATUS, |
| }, |
| .num_consumer_supplies = ARRAY_SIZE(beagle_vsim_supply), |
| .consumer_supplies = beagle_vsim_supply, |
| }; |
| |
| static struct twl4030_platform_data beagle_twldata = { |
| /* platform_data for children goes here */ |
| .gpio = &beagle_gpio_data, |
| .vmmc1 = &beagle_vmmc1, |
| .vsim = &beagle_vsim, |
| }; |
| |
| static struct i2c_board_info __initdata beagle_i2c_eeprom[] = { |
| { |
| I2C_BOARD_INFO("eeprom", 0x50), |
| }, |
| }; |
| |
| static int __init omap3_beagle_i2c_init(void) |
| { |
| omap3_pmic_get_config(&beagle_twldata, |
| TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO, |
| TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2); |
| |
| beagle_twldata.vpll2->constraints.name = "VDVI"; |
| |
| omap3_pmic_init("twl4030", &beagle_twldata); |
| /* Bus 3 is attached to the DVI port where devices like the pico DLP |
| * projector don't work reliably with 400kHz */ |
| omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom)); |
| return 0; |
| } |
| |
| static struct gpio_led gpio_leds[] = { |
| { |
| .name = "beagleboard::usr0", |
| .default_trigger = "heartbeat", |
| .gpio = 150, |
| }, |
| { |
| .name = "beagleboard::usr1", |
| .default_trigger = "mmc0", |
| .gpio = 149, |
| }, |
| { |
| .name = "beagleboard::pmu_stat", |
| .gpio = -EINVAL, /* gets replaced */ |
| .active_low = true, |
| }, |
| }; |
| |
| static struct gpio_led_platform_data gpio_led_info = { |
| .leds = gpio_leds, |
| .num_leds = ARRAY_SIZE(gpio_leds), |
| }; |
| |
| static struct platform_device leds_gpio = { |
| .name = "leds-gpio", |
| .id = -1, |
| .dev = { |
| .platform_data = &gpio_led_info, |
| }, |
| }; |
| |
| static struct gpio_keys_button gpio_buttons[] = { |
| { |
| .code = BTN_EXTRA, |
| /* Dynamically assigned depending on board */ |
| .gpio = -EINVAL, |
| .desc = "user", |
| .wakeup = 1, |
| }, |
| }; |
| |
| static struct gpio_keys_platform_data gpio_key_info = { |
| .buttons = gpio_buttons, |
| .nbuttons = ARRAY_SIZE(gpio_buttons), |
| }; |
| |
| static struct platform_device keys_gpio = { |
| .name = "gpio-keys", |
| .id = -1, |
| .dev = { |
| .platform_data = &gpio_key_info, |
| }, |
| }; |
| |
| static void __init omap3_beagle_init_early(void) |
| { |
| omap2_init_common_infrastructure(); |
| } |
| |
| static void __init omap3_beagle_init_irq(void) |
| { |
| omap3_init_irq(); |
| } |
| |
| static struct platform_device *omap3_beagle_devices[] __initdata = { |
| &leds_gpio, |
| &keys_gpio, |
| }; |
| |
| static const struct usbhs_omap_board_data usbhs_bdata __initconst = { |
| |
| .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, |
| .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, |
| .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, |
| |
| .phy_reset = true, |
| .reset_gpio_port[0] = -EINVAL, |
| .reset_gpio_port[1] = 147, |
| .reset_gpio_port[2] = -EINVAL |
| }; |
| |
| #ifdef CONFIG_OMAP_MUX |
| static struct omap_board_mux board_mux[] __initdata = { |
| { .reg_offset = OMAP_MUX_TERMINATOR }, |
| }; |
| #endif |
| |
| static void __init beagle_opp_init(void) |
| { |
| int r = 0; |
| |
| /* Initialize the omap3 opp table */ |
| if (omap3_opp_init()) { |
| pr_err("%s: opp default init failed\n", __func__); |
| return; |
| } |
| |
| /* Custom OPP enabled for all xM versions */ |
| if (cpu_is_omap3630()) { |
| struct device *mpu_dev, *iva_dev; |
| |
| mpu_dev = omap2_get_mpuss_device(); |
| iva_dev = omap2_get_iva_device(); |
| |
| if (!mpu_dev || !iva_dev) { |
| pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n", |
| __func__, mpu_dev, iva_dev); |
| return; |
| } |
| /* Enable MPU 1GHz and lower opps */ |
| r = opp_enable(mpu_dev, 800000000); |
| /* TODO: MPU 1GHz needs SR and ABB */ |
| |
| /* Enable IVA 800MHz and lower opps */ |
| r |= opp_enable(iva_dev, 660000000); |
| /* TODO: DSP 800MHz needs SR and ABB */ |
| if (r) { |
| pr_err("%s: failed to enable higher opp %d\n", |
| __func__, r); |
| /* |
| * Cleanup - disable the higher freqs - we dont care |
| * about the results |
| */ |
| opp_disable(mpu_dev, 800000000); |
| opp_disable(iva_dev, 660000000); |
| } |
| } |
| return; |
| } |
| |
| static void __init omap3_beagle_init(void) |
| { |
| omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
| omap3_beagle_init_rev(); |
| omap3_beagle_i2c_init(); |
| |
| gpio_buttons[0].gpio = beagle_config.usr_button_gpio; |
| |
| platform_add_devices(omap3_beagle_devices, |
| ARRAY_SIZE(omap3_beagle_devices)); |
| omap_display_init(&beagle_dss_data); |
| omap_serial_init(); |
| omap_sdrc_init(mt46h32m32lf6_sdrc_params, |
| mt46h32m32lf6_sdrc_params); |
| |
| omap_mux_init_gpio(170, OMAP_PIN_INPUT); |
| /* REVISIT leave DVI powered down until it's needed ... */ |
| gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD"); |
| |
| usb_musb_init(NULL); |
| usbhs_init(&usbhs_bdata); |
| omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions, |
| ARRAY_SIZE(omap3beagle_nand_partitions)); |
| |
| /* Ensure msecure is mux'd to be able to set the RTC. */ |
| omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH); |
| |
| /* Ensure SDRC pins are mux'd for self-refresh */ |
| omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); |
| omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); |
| |
| beagle_display_init(); |
| beagle_opp_init(); |
| } |
| |
| MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board") |
| /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */ |
| .boot_params = 0x80000100, |
| .reserve = omap_reserve, |
| .map_io = omap3_map_io, |
| .init_early = omap3_beagle_init_early, |
| .init_irq = omap3_beagle_init_irq, |
| .init_machine = omap3_beagle_init, |
| .timer = &omap3_secure_timer, |
| MACHINE_END |