/* * linux/arch/arm/mach-omap2/board-n8x0.c * * Copyright (C) 2005-2009 Nokia Corporation * Author: Juha Yrjola * * Modified from mach-omap2/board-generic.c * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "common.h" #include #include #include #include #include #include #include "mux.h" static int slot1_cover_open; static int slot2_cover_open; static struct device *mmc_device; #define TUSB6010_ASYNC_CS 1 #define TUSB6010_SYNC_CS 4 #define TUSB6010_GPIO_INT 58 #define TUSB6010_GPIO_ENABLE 0 #define TUSB6010_DMACHAN 0x3f #if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE) /* * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and * 1.5 V voltage regulators of PM companion chip. Companion chip will then * provide then PGOOD signal to TUSB6010 which will release it from reset. */ static int tusb_set_power(int state) { int i, retval = 0; if (state) { gpio_set_value(TUSB6010_GPIO_ENABLE, 1); msleep(1); /* Wait until TUSB6010 pulls INT pin down */ i = 100; while (i && gpio_get_value(TUSB6010_GPIO_INT)) { msleep(1); i--; } if (!i) { printk(KERN_ERR "tusb: powerup failed\n"); retval = -ENODEV; } } else { gpio_set_value(TUSB6010_GPIO_ENABLE, 0); msleep(10); } return retval; } static struct musb_hdrc_config musb_config = { .multipoint = 1, .dyn_fifo = 1, .num_eps = 16, .ram_bits = 12, }; static struct musb_hdrc_platform_data tusb_data = { #if defined(CONFIG_USB_MUSB_OTG) .mode = MUSB_OTG, #elif defined(CONFIG_USB_MUSB_PERIPHERAL) .mode = MUSB_PERIPHERAL, #else /* defined(CONFIG_USB_MUSB_HOST) */ .mode = MUSB_HOST, #endif .set_power = tusb_set_power, .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */ .power = 100, /* Max 100 mA VBUS for host mode */ .config = &musb_config, }; static void __init n8x0_usb_init(void) { int ret = 0; static char announce[] __initdata = KERN_INFO "TUSB 6010\n"; /* PM companion chip power control pin */ ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW, "TUSB6010 enable"); if (ret != 0) { printk(KERN_ERR "Could not get TUSB power GPIO%i\n", TUSB6010_GPIO_ENABLE); return; } tusb_set_power(0); ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2, TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS, TUSB6010_GPIO_INT, TUSB6010_DMACHAN); if (ret != 0) goto err; printk(announce); return; err: gpio_free(TUSB6010_GPIO_ENABLE); } #else static void __init n8x0_usb_init(void) {} #endif /*CONFIG_USB_MUSB_TUSB6010 */ static struct omap2_mcspi_device_config p54spi_mcspi_config = { .turbo_mode = 0, }; static struct spi_board_info n800_spi_board_info[] __initdata = { { .modalias = "p54spi", .bus_num = 2, .chip_select = 0, .max_speed_hz = 48000000, .controller_data = &p54spi_mcspi_config, }, }; #if defined(CONFIG_MTD_ONENAND_OMAP2) || \ defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) static struct mtd_partition onenand_partitions[] = { { .name = "bootloader", .offset = 0, .size = 0x20000, .mask_flags = MTD_WRITEABLE, /* Force read-only */ }, { .name = "config", .offset = MTDPART_OFS_APPEND, .size = 0x60000, }, { .name = "kernel", .offset = MTDPART_OFS_APPEND, .size = 0x200000, }, { .name = "initfs", .offset = MTDPART_OFS_APPEND, .size = 0x400000, }, { .name = "rootfs", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, }, }; static struct omap_onenand_platform_data board_onenand_data[] = { { .cs = 0, .gpio_irq = 26, .parts = onenand_partitions, .nr_parts = ARRAY_SIZE(onenand_partitions), .flags = ONENAND_SYNC_READ, } }; #endif #if defined(CONFIG_CBUS) || defined(CONFIG_CBUS_MODULE) static struct cbus_host_platform_data n8x0_cbus_data = { .clk_gpio = 66, .dat_gpio = 65, .sel_gpio = 64, }; static struct platform_device n8x0_cbus_device = { .name = "cbus", .id = -1, .dev = { .platform_data = &n8x0_cbus_data, }, }; static struct resource retu_resource[] = { { .start = -EINVAL, /* set later */ .flags = IORESOURCE_IRQ, }, }; static struct platform_device retu_device = { .name = "retu", .id = -1, .resource = retu_resource, .num_resources = ARRAY_SIZE(retu_resource), .dev = { .parent = &n8x0_cbus_device.dev, }, }; static struct resource tahvo_resource[] = { { .start = -EINVAL, /* set later */ .flags = IORESOURCE_IRQ, } }; static struct platform_device tahvo_device = { .name = "tahvo", .id = -1, .resource = tahvo_resource, .num_resources = ARRAY_SIZE(tahvo_resource), .dev = { .parent = &n8x0_cbus_device.dev, }, }; static void __init n8x0_cbus_init(void) { int ret; platform_device_register(&n8x0_cbus_device); ret = gpio_request(108, "RETU irq"); if (ret < 0) { pr_err("retu: Unable to reserve IRQ GPIO\n"); return; } ret = gpio_direction_input(108); if (ret < 0) { pr_err("retu: Unable to change gpio direction\n"); gpio_free(108); return; } irq_set_irq_type(gpio_to_irq(108), IRQ_TYPE_EDGE_RISING); retu_resource[0].start = gpio_to_irq(108); platform_device_register(&retu_device); ret = gpio_request(111, "TAHVO irq"); if (ret) { pr_err("tahvo: Unable to reserve IRQ GPIO\n"); gpio_free(108); return; } /* Set the pin as input */ ret = gpio_direction_input(111); if (ret) { pr_err("tahvo: Unable to change direction\n"); gpio_free(108); gpio_free(111); return; } tahvo_resource[0].start = gpio_to_irq(111); platform_device_register(&tahvo_device); } #else static inline void __init n8x0_cbus_init(void) { } #endif #if defined(CONFIG_MENELAUS) && \ (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)) /* * On both N800 and N810, only the first of the two MMC controllers is in use. * The two MMC slots are multiplexed via Menelaus companion chip over I2C. * On N800, both slots are powered via Menelaus. On N810, only one of the * slots is powered via Menelaus. The N810 EMMC is powered via GPIO. * * VMMC slot 1 on both N800 and N810 * VDCDC3_APE and VMCS2_APE slot 2 on N800 * GPIO23 and GPIO9 slot 2 EMMC on N810 * */ #define N8X0_SLOT_SWITCH_GPIO 96 #define N810_EMMC_VSD_GPIO 23 #define N810_EMMC_VIO_GPIO 9 static int n8x0_mmc_switch_slot(struct device *dev, int slot) { #ifdef CONFIG_MMC_DEBUG dev_dbg(dev, "Choose slot %d\n", slot + 1); #endif gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot); return 0; } static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot, int power_on, int vdd) { int mV; #ifdef CONFIG_MMC_DEBUG dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, power_on ? "on" : "off", vdd); #endif if (slot == 0) { if (!power_on) return menelaus_set_vmmc(0); switch (1 << vdd) { case MMC_VDD_33_34: case MMC_VDD_32_33: case MMC_VDD_31_32: mV = 3100; break; case MMC_VDD_30_31: mV = 3000; break; case MMC_VDD_28_29: mV = 2800; break; case MMC_VDD_165_195: mV = 1850; break; default: BUG(); } return menelaus_set_vmmc(mV); } else { if (!power_on) return menelaus_set_vdcdc(3, 0); switch (1 << vdd) { case MMC_VDD_33_34: case MMC_VDD_32_33: mV = 3300; break; case MMC_VDD_30_31: case MMC_VDD_29_30: mV = 3000; break; case MMC_VDD_28_29: case MMC_VDD_27_28: mV = 2800; break; case MMC_VDD_24_25: case MMC_VDD_23_24: mV = 2400; break; case MMC_VDD_22_23: case MMC_VDD_21_22: mV = 2200; break; case MMC_VDD_20_21: mV = 2000; break; case MMC_VDD_165_195: mV = 1800; break; default: BUG(); } return menelaus_set_vdcdc(3, mV); } return 0; } static void n810_set_power_emmc(struct device *dev, int power_on) { dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off"); if (power_on) { gpio_set_value(N810_EMMC_VSD_GPIO, 1); msleep(1); gpio_set_value(N810_EMMC_VIO_GPIO, 1); msleep(1); } else { gpio_set_value(N810_EMMC_VIO_GPIO, 0); msleep(50); gpio_set_value(N810_EMMC_VSD_GPIO, 0); msleep(50); } } static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on, int vdd) { if (machine_is_nokia_n800() || slot == 0) return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd); n810_set_power_emmc(dev, power_on); return 0; } static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) { int r; dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1, bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); BUG_ON(slot != 0 && slot != 1); slot++; switch (bus_mode) { case MMC_BUSMODE_OPENDRAIN: r = menelaus_set_mmc_opendrain(slot, 1); break; case MMC_BUSMODE_PUSHPULL: r = menelaus_set_mmc_opendrain(slot, 0); break; default: BUG(); } if (r != 0 && printk_ratelimit()) dev_err(dev, "MMC: unable to set bus mode for slot %d\n", slot); return r; } static int n8x0_mmc_get_cover_state(struct device *dev, int slot) { slot++; BUG_ON(slot != 1 && slot != 2); if (slot == 1) return slot1_cover_open; else return slot2_cover_open; } static void n8x0_mmc_callback(void *data, u8 card_mask) { int bit, *openp, index; if (machine_is_nokia_n800()) { bit = 1 << 1; openp = &slot2_cover_open; index = 1; } else { bit = 1; openp = &slot1_cover_open; index = 0; } if (card_mask & bit) *openp = 1; else *openp = 0; omap_mmc_notify_cover_event(mmc_device, index, *openp); } static int n8x0_mmc_late_init(struct device *dev) { int r, bit, *openp; int vs2sel; mmc_device = dev; r = menelaus_set_slot_sel(1); if (r < 0) return r; if (machine_is_nokia_n800()) vs2sel = 0; else vs2sel = 2; r = menelaus_set_mmc_slot(2, 0, vs2sel, 1); if (r < 0) return r; n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */ n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16); r = menelaus_set_mmc_slot(1, 1, 0, 1); if (r < 0) return r; r = menelaus_set_mmc_slot(2, 1, vs2sel, 1); if (r < 0) return r; r = menelaus_get_slot_pin_states(); if (r < 0) return r; if (machine_is_nokia_n800()) { bit = 1 << 1; openp = &slot2_cover_open; } else { bit = 1; openp = &slot1_cover_open; slot2_cover_open = 0; } /* All slot pin bits seem to be inversed until first switch change */ if (r == 0xf || r == (0xf & ~bit)) r = ~r; if (r & bit) *openp = 1; else *openp = 0; r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL); return r; } static void n8x0_mmc_shutdown(struct device *dev) { int vs2sel; if (machine_is_nokia_n800()) vs2sel = 0; else vs2sel = 2; menelaus_set_mmc_slot(1, 0, 0, 0); menelaus_set_mmc_slot(2, 0, vs2sel, 0); } static void n8x0_mmc_cleanup(struct device *dev) { menelaus_unregister_mmc_callback(); gpio_free(N8X0_SLOT_SWITCH_GPIO); if (machine_is_nokia_n810()) { gpio_free(N810_EMMC_VSD_GPIO); gpio_free(N810_EMMC_VIO_GPIO); } } /* * MMC controller1 has two slots that are multiplexed via I2C. * MMC controller2 is not in use. */ static struct omap_mmc_platform_data mmc1_data = { .nr_slots = 2, .switch_slot = n8x0_mmc_switch_slot, .init = n8x0_mmc_late_init, .cleanup = n8x0_mmc_cleanup, .shutdown = n8x0_mmc_shutdown, .max_freq = 24000000, .dma_mask = 0xffffffff, .slots[0] = { .wires = 4, .set_power = n8x0_mmc_set_power, .set_bus_mode = n8x0_mmc_set_bus_mode, .get_cover_state = n8x0_mmc_get_cover_state, .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 | MMC_VDD_32_33 | MMC_VDD_33_34, .name = "internal", }, .slots[1] = { .set_power = n8x0_mmc_set_power, .set_bus_mode = n8x0_mmc_set_bus_mode, .get_cover_state = n8x0_mmc_get_cover_state, .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 | MMC_VDD_21_22 | MMC_VDD_22_23 | MMC_VDD_23_24 | MMC_VDD_24_25 | MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30 | MMC_VDD_30_31 | MMC_VDD_32_33 | MMC_VDD_33_34, .name = "external", }, }; static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC]; static struct gpio n810_emmc_gpios[] __initdata = { { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" }, { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" }, }; static void __init n8x0_mmc_init(void) { int err; if (machine_is_nokia_n810()) { mmc1_data.slots[0].name = "external"; /* * Some Samsung Movinand chips do not like open-ended * multi-block reads and fall to braind-dead state * while doing so. Reducing the number of blocks in * the transfer or delays in clock disable do not help */ mmc1_data.slots[1].name = "internal"; mmc1_data.slots[1].ban_openended = 1; } err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot switch"); if (err) return; if (machine_is_nokia_n810()) { err = gpio_request_array(n810_emmc_gpios, ARRAY_SIZE(n810_emmc_gpios)); if (err) { gpio_free(N8X0_SLOT_SWITCH_GPIO); return; } } mmc_data[0] = &mmc1_data; omap242x_init_mmc(mmc_data); } #else void __init n8x0_mmc_init(void) { } #endif /* CONFIG_MMC_OMAP */ #ifdef CONFIG_MENELAUS static int n8x0_auto_sleep_regulators(void) { u32 val; int ret; val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \ | EN_VAUX_SLEEP | EN_VIO_SLEEP \ | EN_VMEM_SLEEP | EN_DC3_SLEEP \ | EN_VC_SLEEP | EN_DC2_SLEEP; ret = menelaus_set_regulator_sleep(1, val); if (ret < 0) { printk(KERN_ERR "Could not set regulators to sleep on " "menelaus: %u\n", ret); return ret; } return 0; } static int n8x0_auto_voltage_scale(void) { int ret; ret = menelaus_set_vcore_hw(1400, 1050); if (ret < 0) { printk(KERN_ERR "Could not set VCORE voltage on " "menelaus: %u\n", ret); return ret; } return 0; } static int n8x0_menelaus_late_init(struct device *dev) { int ret; ret = n8x0_auto_voltage_scale(); if (ret < 0) return ret; ret = n8x0_auto_sleep_regulators(); if (ret < 0) return ret; return 0; } #else static int n8x0_menelaus_late_init(struct device *dev) { return 0; } #endif static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = { .late_init = n8x0_menelaus_late_init, }; static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = { { I2C_BOARD_INFO("menelaus", 0x72), .irq = INT_24XX_SYS_NIRQ, .platform_data = &n8x0_menelaus_platform_data, }, }; static struct aic3x_pdata n810_aic33_data __initdata = { .gpio_reset = 118, }; static struct i2c_board_info n810_i2c_board_info_2[] __initdata = { { I2C_BOARD_INFO("tlv320aic3x", 0x18), .platform_data = &n810_aic33_data, }, }; #ifdef CONFIG_OMAP_MUX static struct omap_board_mux board_mux[] __initdata = { /* I2S codec port pins for McBSP block */ OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT), OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT), { .reg_offset = OMAP_MUX_TERMINATOR }, }; static struct omap_device_pad serial2_pads[] __initdata = { { .name = "uart3_rx_irrx.uart3_rx_irrx", .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, .enable = OMAP_MUX_MODE0, .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */ }, }; static inline void board_serial_init(void) { struct omap_board_data bdata; bdata.flags = 0; bdata.pads = NULL; bdata.pads_cnt = 0; bdata.id = 0; omap_serial_init_port(&bdata, NULL); bdata.id = 1; omap_serial_init_port(&bdata, NULL); bdata.id = 2; bdata.pads = serial2_pads; bdata.pads_cnt = ARRAY_SIZE(serial2_pads); omap_serial_init_port(&bdata, NULL); } #else static inline void board_serial_init(void) { omap_serial_init(); } #endif static void __init n8x0_init_machine(void) { omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC); n8x0_cbus_init(); /* FIXME: add n810 spi devices */ spi_register_board_info(n800_spi_board_info, ARRAY_SIZE(n800_spi_board_info)); omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1, ARRAY_SIZE(n8x0_i2c_board_info_1)); omap_register_i2c_bus(2, 400, NULL, 0); if (machine_is_nokia_n810()) i2c_register_board_info(2, n810_i2c_board_info_2, ARRAY_SIZE(n810_i2c_board_info_2)); board_serial_init(); omap_sdrc_init(NULL, NULL); gpmc_onenand_init(board_onenand_data); n8x0_mmc_init(); n8x0_usb_init(); } MACHINE_START(NOKIA_N800, "Nokia N800") .atag_offset = 0x100, .reserve = omap_reserve, .map_io = omap242x_map_io, .init_early = omap2420_init_early, .init_irq = omap2_init_irq, .handle_irq = omap2_intc_handle_irq, .init_machine = n8x0_init_machine, .timer = &omap2_timer, MACHINE_END MACHINE_START(NOKIA_N810, "Nokia N810") .atag_offset = 0x100, .reserve = omap_reserve, .map_io = omap242x_map_io, .init_early = omap2420_init_early, .init_irq = omap2_init_irq, .handle_irq = omap2_intc_handle_irq, .init_machine = n8x0_init_machine, .timer = &omap2_timer, MACHINE_END MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX") .atag_offset = 0x100, .reserve = omap_reserve, .map_io = omap242x_map_io, .init_early = omap2420_init_early, .init_irq = omap2_init_irq, .handle_irq = omap2_intc_handle_irq, .init_machine = n8x0_init_machine, .timer = &omap2_timer, MACHINE_END