From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-omap2/board-n8x0.c | 725 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 725 insertions(+) create mode 100644 arch/arm/mach-omap2/board-n8x0.c (limited to 'arch/arm/mach-omap2/board-n8x0.c') diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c new file mode 100644 index 00000000..8d74318e --- /dev/null +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -0,0 +1,725 @@ +/* + * 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 +#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 + +#ifdef CONFIG_USB_MUSB_TUSB6010 +/* + * 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, + .single_channel = 1, +}; + +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_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, + }, +}; + +static void __init n8x0_map_io(void) +{ + omap2_set_globals_242x(); + omap242x_map_common_io(); +} + +static void __init n8x0_init_early(void) +{ + omap2_init_common_infrastructure(); + omap2_init_common_devices(NULL, NULL); +} + +#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); + + bdata.id = 1; + omap_serial_init_port(&bdata); + + bdata.id = 2; + bdata.pads = serial2_pads; + bdata.pads_cnt = ARRAY_SIZE(serial2_pads); + omap_serial_init_port(&bdata); +} + +#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); + /* 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(); + gpmc_onenand_init(board_onenand_data); + n8x0_mmc_init(); + n8x0_usb_init(); +} + +MACHINE_START(NOKIA_N800, "Nokia N800") + .boot_params = 0x80000100, + .reserve = omap_reserve, + .map_io = n8x0_map_io, + .init_early = n8x0_init_early, + .init_irq = omap_init_irq, + .init_machine = n8x0_init_machine, + .timer = &omap_timer, +MACHINE_END + +MACHINE_START(NOKIA_N810, "Nokia N810") + .boot_params = 0x80000100, + .reserve = omap_reserve, + .map_io = n8x0_map_io, + .init_early = n8x0_init_early, + .init_irq = omap_init_irq, + .init_machine = n8x0_init_machine, + .timer = &omap_timer, +MACHINE_END + +MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX") + .boot_params = 0x80000100, + .reserve = omap_reserve, + .map_io = n8x0_map_io, + .init_early = n8x0_init_early, + .init_irq = omap_init_irq, + .init_machine = n8x0_init_machine, + .timer = &omap_timer, +MACHINE_END -- cgit v1.2.3