/* * Copyright (C) 2000 Deep Blue Solutions Ltd * Copyright (C) 2002 Shane Nay (shane@minirl.com) * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1 #include #include #include #endif #include "devices-imx31.h" #include "devices.h" /* PBC Board interrupt status register */ #define PBC_INTSTATUS 0x000016 /* PBC Board interrupt current status register */ #define PBC_INTCURR_STATUS 0x000018 /* PBC Interrupt mask register set address */ #define PBC_INTMASK_SET 0x00001A /* PBC Interrupt mask register clear address */ #define PBC_INTMASK_CLEAR 0x00001C /* External UART A */ #define PBC_SC16C652_UARTA 0x010000 /* External UART B */ #define PBC_SC16C652_UARTB 0x010010 #define PBC_INTSTATUS_REG (PBC_INTSTATUS + PBC_BASE_ADDRESS) #define PBC_INTMASK_SET_REG (PBC_INTMASK_SET + PBC_BASE_ADDRESS) #define PBC_INTMASK_CLEAR_REG (PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS) #define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_4) #define MXC_IRQ_TO_EXPIO(irq) ((irq) - MXC_EXP_IO_BASE) #define EXPIO_INT_XUART_INTA (MXC_EXP_IO_BASE + 10) #define EXPIO_INT_XUART_INTB (MXC_EXP_IO_BASE + 11) #define MXC_MAX_EXP_IO_LINES 16 /* * This file contains the board-specific initialization routines. */ #if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) /*! * The serial port definition structure. */ static struct plat_serial8250_port serial_platform_data[] = { { .membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA), .mapbase = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTA), .irq = EXPIO_INT_XUART_INTA, .uartclk = 14745600, .regshift = 0, .iotype = UPIO_MEM, .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ, }, { .membase = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB), .mapbase = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTB), .irq = EXPIO_INT_XUART_INTB, .uartclk = 14745600, .regshift = 0, .iotype = UPIO_MEM, .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ, }, {}, }; static struct platform_device serial_device = { .name = "serial8250", .id = 0, .dev = { .platform_data = serial_platform_data, }, }; static int __init mxc_init_extuart(void) { return platform_device_register(&serial_device); } #else static inline int mxc_init_extuart(void) { return 0; } #endif static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static unsigned int uart_pins[] = { MX31_PIN_CTS1__CTS1, MX31_PIN_RTS1__RTS1, MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1 }; static inline void mxc_init_imx_uart(void) { mxc_iomux_setup_multiple_pins(uart_pins, ARRAY_SIZE(uart_pins), "uart-0"); imx31_add_imx_uart0(&uart_pdata); } static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc) { u32 imr_val; u32 int_valid; u32 expio_irq; imr_val = __raw_readw(PBC_INTMASK_SET_REG); int_valid = __raw_readw(PBC_INTSTATUS_REG) & imr_val; expio_irq = MXC_EXP_IO_BASE; for (; int_valid != 0; int_valid >>= 1, expio_irq++) { if ((int_valid & 1) == 0) continue; generic_handle_irq(expio_irq); } } /* * Disable an expio pin's interrupt by setting the bit in the imr. * @param irq an expio virtual irq number */ static void expio_mask_irq(struct irq_data *d) { u32 expio = MXC_IRQ_TO_EXPIO(d->irq); /* mask the interrupt */ __raw_writew(1 << expio, PBC_INTMASK_CLEAR_REG); __raw_readw(PBC_INTMASK_CLEAR_REG); } /* * Acknowledge an expanded io pin's interrupt by clearing the bit in the isr. * @param irq an expanded io virtual irq number */ static void expio_ack_irq(struct irq_data *d) { u32 expio = MXC_IRQ_TO_EXPIO(d->irq); /* clear the interrupt status */ __raw_writew(1 << expio, PBC_INTSTATUS_REG); } /* * Enable a expio pin's interrupt by clearing the bit in the imr. * @param irq a expio virtual irq number */ static void expio_unmask_irq(struct irq_data *d) { u32 expio = MXC_IRQ_TO_EXPIO(d->irq); /* unmask the interrupt */ __raw_writew(1 << expio, PBC_INTMASK_SET_REG); } static struct irq_chip expio_irq_chip = { .name = "EXPIO(CPLD)", .irq_ack = expio_ack_irq, .irq_mask = expio_mask_irq, .irq_unmask = expio_unmask_irq, }; static void __init mx31ads_init_expio(void) { int i; printk(KERN_INFO "MX31ADS EXPIO(CPLD) hardware\n"); /* * Configure INT line as GPIO input */ mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_GPIO1_4, IOMUX_CONFIG_GPIO), "expio"); /* disable the interrupt and clear the status */ __raw_writew(0xFFFF, PBC_INTMASK_CLEAR_REG); __raw_writew(0xFFFF, PBC_INTSTATUS_REG); for (i = MXC_EXP_IO_BASE; i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES); i++) { set_irq_chip(i, &expio_irq_chip); set_irq_handler(i, handle_level_irq); set_irq_flags(i, IRQF_VALID); } set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_HIGH); set_irq_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler); } #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1 /* This section defines setup for the Wolfson Microelectronics * 1133-EV1 PMU/audio board. When other PMU boards are supported the * regulator definitions may be shared with them, but for now they can * only be used with this board so would generate warnings about * unused statics and some of the configuration is specific to this * module. */ /* CPU */ static struct regulator_consumer_supply sw1a_consumers[] = { { .supply = "cpu_vcc", } }; static struct regulator_init_data sw1a_data = { .constraints = { .name = "SW1A", .min_uV = 1275000, .max_uV = 1600000, .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | REGULATOR_CHANGE_MODE, .valid_modes_mask = REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST, .state_mem = { .uV = 1400000, .mode = REGULATOR_MODE_NORMAL, .enabled = 1, }, .initial_state = PM_SUSPEND_MEM, .always_on = 1, .boot_on = 1, }, .num_consumer_supplies = ARRAY_SIZE(sw1a_consumers), .consumer_supplies = sw1a_consumers, }; /* System IO - High */ static struct regulator_init_data viohi_data = { .constraints = { .name = "VIOHO", .min_uV = 2800000, .max_uV = 2800000, .state_mem = { .uV = 2800000, .mode = REGULATOR_MODE_NORMAL, .enabled = 1, }, .initial_state = PM_SUSPEND_MEM, .always_on = 1, .boot_on = 1, }, }; /* System IO - Low */ static struct regulator_init_data violo_data = { .constraints = { .name = "VIOLO", .min_uV = 1800000, .max_uV = 1800000, .state_mem = { .uV = 1800000, .mode = REGULATOR_MODE_NORMAL, .enabled = 1, }, .initial_state = PM_SUSPEND_MEM, .always_on = 1, .boot_on = 1, }, }; /* DDR RAM */ static struct regulator_init_data sw2a_data = { .constraints = { .name = "SW2A", .min_uV = 1800000, .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .state_mem = { .uV = 1800000, .mode = REGULATOR_MODE_NORMAL, .enabled = 1, }, .state_disk = { .mode = REGULATOR_MODE_NORMAL, .enabled = 0, }, .always_on = 1, .boot_on = 1, .initial_state = PM_SUSPEND_MEM, }, }; static struct regulator_init_data ldo1_data = { .constraints = { .name = "VCAM/VMMC1/VMMC2", .min_uV = 2800000, .max_uV = 2800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, }, }; static struct regulator_consumer_supply ldo2_consumers[] = { { .supply = "AVDD", .dev_name = "1-001a" }, { .supply = "HPVDD", .dev_name = "1-001a" }, }; /* CODEC and SIM */ static struct regulator_init_data ldo2_data = { .constraints = { .name = "VESIM/VSIM/AVDD", .min_uV = 3300000, .max_uV = 3300000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = REGULATOR_CHANGE_STATUS, .apply_uV = 1, }, .num_consumer_supplies = ARRAY_SIZE(ldo2_consumers), .consumer_supplies = ldo2_consumers, }; /* General */ static struct regulator_init_data vdig_data = { .constraints = { .name = "VDIG", .min_uV = 1500000, .max_uV = 1500000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .apply_uV = 1, .always_on = 1, .boot_on = 1, }, }; /* Tranceivers */ static struct regulator_init_data ldo4_data = { .constraints = { .name = "VRF1/CVDD_2.775", .min_uV = 2500000, .max_uV = 2500000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .apply_uV = 1, .always_on = 1, .boot_on = 1, }, }; static struct wm8350_led_platform_data wm8350_led_data = { .name = "wm8350:white", .default_trigger = "heartbeat", .max_uA = 27899, }; static struct wm8350_audio_platform_data imx32ads_wm8350_setup = { .vmid_discharge_msecs = 1000, .drain_msecs = 30, .cap_discharge_msecs = 700, .vmid_charge_msecs = 700, .vmid_s_curve = WM8350_S_CURVE_SLOW, .dis_out4 = WM8350_DISCHARGE_SLOW, .dis_out3 = WM8350_DISCHARGE_SLOW, .dis_out2 = WM8350_DISCHARGE_SLOW, .dis_out1 = WM8350_DISCHARGE_SLOW, .vroi_out4 = WM8350_TIE_OFF_500R, .vroi_out3 = WM8350_TIE_OFF_500R, .vroi_out2 = WM8350_TIE_OFF_500R, .vroi_out1 = WM8350_TIE_OFF_500R, .vroi_enable = 0, .codec_current_on = WM8350_CODEC_ISEL_1_0, .codec_current_standby = WM8350_CODEC_ISEL_0_5, .codec_current_charge = WM8350_CODEC_ISEL_1_5, }; static int mx31_wm8350_init(struct wm8350 *wm8350) { wm8350_gpio_config(wm8350, 0, WM8350_GPIO_DIR_IN, WM8350_GPIO0_PWR_ON_IN, WM8350_GPIO_ACTIVE_LOW, WM8350_GPIO_PULL_UP, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_ON); wm8350_gpio_config(wm8350, 3, WM8350_GPIO_DIR_IN, WM8350_GPIO3_PWR_OFF_IN, WM8350_GPIO_ACTIVE_HIGH, WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_ON); wm8350_gpio_config(wm8350, 4, WM8350_GPIO_DIR_IN, WM8350_GPIO4_MR_IN, WM8350_GPIO_ACTIVE_HIGH, WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_OFF); wm8350_gpio_config(wm8350, 7, WM8350_GPIO_DIR_IN, WM8350_GPIO7_HIBERNATE_IN, WM8350_GPIO_ACTIVE_HIGH, WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_OFF); wm8350_gpio_config(wm8350, 6, WM8350_GPIO_DIR_OUT, WM8350_GPIO6_SDOUT_OUT, WM8350_GPIO_ACTIVE_HIGH, WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_OFF); wm8350_gpio_config(wm8350, 8, WM8350_GPIO_DIR_OUT, WM8350_GPIO8_VCC_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW, WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_OFF); wm8350_gpio_config(wm8350, 9, WM8350_GPIO_DIR_OUT, WM8350_GPIO9_BATT_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW, WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_OFF); wm8350_register_regulator(wm8350, WM8350_DCDC_1, &sw1a_data); wm8350_register_regulator(wm8350, WM8350_DCDC_3, &viohi_data); wm8350_register_regulator(wm8350, WM8350_DCDC_4, &violo_data); wm8350_register_regulator(wm8350, WM8350_DCDC_6, &sw2a_data); wm8350_register_regulator(wm8350, WM8350_LDO_1, &ldo1_data); wm8350_register_regulator(wm8350, WM8350_LDO_2, &ldo2_data); wm8350_register_regulator(wm8350, WM8350_LDO_3, &vdig_data); wm8350_register_regulator(wm8350, WM8350_LDO_4, &ldo4_data); /* LEDs */ wm8350_dcdc_set_slot(wm8350, WM8350_DCDC_5, 1, 1, WM8350_DC5_ERRACT_SHUTDOWN_CONV); wm8350_isink_set_flash(wm8350, WM8350_ISINK_A, WM8350_ISINK_FLASH_DISABLE, WM8350_ISINK_FLASH_TRIG_BIT, WM8350_ISINK_FLASH_DUR_32MS, WM8350_ISINK_FLASH_ON_INSTANT, WM8350_ISINK_FLASH_OFF_INSTANT, WM8350_ISINK_FLASH_MODE_EN); wm8350_dcdc25_set_mode(wm8350, WM8350_DCDC_5, WM8350_ISINK_MODE_BOOST, WM8350_ISINK_ILIM_NORMAL, WM8350_DC5_RMP_20V, WM8350_DC5_FBSRC_ISINKA); wm8350_register_led(wm8350, 0, WM8350_DCDC_5, WM8350_ISINK_A, &wm8350_led_data); wm8350->codec.platform_data = &imx32ads_wm8350_setup; regulator_has_full_constraints(); return 0; } static struct wm8350_platform_data __initdata mx31_wm8350_pdata = { .init = mx31_wm8350_init, .irq_base = MXC_BOARD_IRQ_START + MXC_MAX_EXP_IO_LINES, }; #endif static struct i2c_board_info __initdata mx31ads_i2c1_devices[] = { #ifdef CONFIG_MACH_MX31ADS_WM1133_EV1 { I2C_BOARD_INFO("wm8350", 0x1a), .platform_data = &mx31_wm8350_pdata, .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3), }, #endif }; static void mxc_init_i2c(void) { i2c_register_board_info(1, mx31ads_i2c1_devices, ARRAY_SIZE(mx31ads_i2c1_devices)); mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MOSI, IOMUX_CONFIG_ALT1)); mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MISO, IOMUX_CONFIG_ALT1)); imx31_add_imx_i2c1(NULL); } static unsigned int ssi_pins[] = { MX31_PIN_SFS5__SFS5, MX31_PIN_SCK5__SCK5, MX31_PIN_SRXD5__SRXD5, MX31_PIN_STXD5__STXD5, }; static void mxc_init_audio(void) { imx31_add_imx_ssi(0, NULL); mxc_iomux_setup_multiple_pins(ssi_pins, ARRAY_SIZE(ssi_pins), "ssi"); } /*! * This structure defines static mappings for the i.MX31ADS board. */ static struct map_desc mx31ads_io_desc[] __initdata = { { .virtual = MX31_CS4_BASE_ADDR_VIRT, .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR), .length = MX31_CS4_SIZE / 2, .type = MT_DEVICE }, }; /*! * Set up static virtual mappings. */ static void __init mx31ads_map_io(void) { mx31_map_io(); iotable_init(mx31ads_io_desc, ARRAY_SIZE(mx31ads_io_desc)); } static void __init mx31ads_init_irq(void) { mx31_init_irq(); mx31ads_init_expio(); } /*! * Board specific initialization. */ static void __init mxc_board_init(void) { mxc_init_extuart(); mxc_init_imx_uart(); mxc_init_i2c(); mxc_init_audio(); } static void __init mx31ads_timer_init(void) { mx31_clocks_init(26000000); } static struct sys_timer mx31ads_timer = { .init = mx31ads_timer_init, }; /* * The following uses standard kernel macros defined in arch.h in order to * initialize __mach_desc_MX31ADS data structure. */ MACHINE_START(MX31ADS, "Freescale MX31ADS") /* Maintainer: Freescale Semiconductor, Inc. */ .boot_params = MX3x_PHYS_OFFSET + 0x100, .map_io = mx31ads_map_io, .init_irq = mx31ads_init_irq, .init_machine = mxc_board_init, .timer = &mx31ads_timer, MACHINE_END