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-rw-r--r--arch/arm/mach-imx/mach-mx31ads.c588
1 files changed, 588 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx31ads.c b/arch/arm/mach-imx/mach-mx31ads.c
new file mode 100644
index 000000000..766b8b93f
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx31ads.c
@@ -0,0 +1,588 @@
+/*
+ * 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 <linux/types.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/serial_8250.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/memory.h>
+#include <asm/mach/map.h>
+
+#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
+#include <linux/mfd/wm8350/audio.h>
+#include <linux/mfd/wm8350/core.h>
+#include <linux/mfd/wm8350/pmic.h>
+#endif
+
+#include "common.h"
+#include "devices-imx31.h"
+#include "hardware.h"
+#include "iomux-mx3.h"
+
+/* Base address of PBC controller */
+#define PBC_BASE_ADDRESS MX31_CS4_BASE_ADDR_VIRT
+
+/* 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_INT_XUART_INTA 10
+#define EXPIO_INT_XUART_INTB 11
+
+#define MXC_MAX_EXP_IO_LINES 16
+
+/* CS8900 */
+#define EXPIO_INT_ENET_INT 8
+#define CS4_CS8900_MMIO_START 0x20000
+
+static struct irq_domain *domain;
+
+/*
+ * 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),
+ .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),
+ .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 struct resource mx31ads_cs8900_resources[] __initdata = {
+ DEFINE_RES_MEM(MX31_CS4_BASE_ADDR + CS4_CS8900_MMIO_START, SZ_64K),
+ DEFINE_RES_IRQ(-1),
+};
+
+static const struct platform_device_info mx31ads_cs8900_devinfo __initconst = {
+ .name = "cs89x0",
+ .id = 0,
+ .res = mx31ads_cs8900_resources,
+ .num_res = ARRAY_SIZE(mx31ads_cs8900_resources),
+};
+
+static int __init mxc_init_extuart(void)
+{
+ serial_platform_data[0].irq = irq_find_mapping(domain,
+ EXPIO_INT_XUART_INTA);
+ serial_platform_data[1].irq = irq_find_mapping(domain,
+ EXPIO_INT_XUART_INTB);
+ return platform_device_register(&serial_device);
+}
+
+static void __init mxc_init_ext_ethernet(void)
+{
+ mx31ads_cs8900_resources[1].start =
+ irq_find_mapping(domain, EXPIO_INT_ENET_INT);
+ mx31ads_cs8900_resources[1].end =
+ irq_find_mapping(domain, EXPIO_INT_ENET_INT);
+ platform_device_register_full(
+ (struct platform_device_info *)&mx31ads_cs8900_devinfo);
+}
+
+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(struct irq_desc *desc)
+{
+ u32 imr_val;
+ u32 int_valid;
+ u32 expio_irq;
+
+ imr_val = imx_readw(PBC_INTMASK_SET_REG);
+ int_valid = imx_readw(PBC_INTSTATUS_REG) & imr_val;
+
+ expio_irq = 0;
+ for (; int_valid != 0; int_valid >>= 1, expio_irq++) {
+ if ((int_valid & 1) == 0)
+ continue;
+
+ generic_handle_irq(irq_find_mapping(domain, expio_irq));
+ }
+}
+
+/*
+ * Disable an expio pin's interrupt by setting the bit in the imr.
+ * @param d an expio virtual irq description
+ */
+static void expio_mask_irq(struct irq_data *d)
+{
+ u32 expio = d->hwirq;
+ /* mask the interrupt */
+ imx_writew(1 << expio, PBC_INTMASK_CLEAR_REG);
+ imx_readw(PBC_INTMASK_CLEAR_REG);
+}
+
+/*
+ * Acknowledge an expanded io pin's interrupt by clearing the bit in the isr.
+ * @param d an expio virtual irq description
+ */
+static void expio_ack_irq(struct irq_data *d)
+{
+ u32 expio = d->hwirq;
+ /* clear the interrupt status */
+ imx_writew(1 << expio, PBC_INTSTATUS_REG);
+}
+
+/*
+ * Enable a expio pin's interrupt by clearing the bit in the imr.
+ * @param d an expio virtual irq description
+ */
+static void expio_unmask_irq(struct irq_data *d)
+{
+ u32 expio = d->hwirq;
+ /* unmask the interrupt */
+ imx_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 irq_base;
+ int i, irq;
+
+ 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 */
+ imx_writew(0xFFFF, PBC_INTMASK_CLEAR_REG);
+ imx_writew(0xFFFF, PBC_INTSTATUS_REG);
+
+ irq_base = irq_alloc_descs(-1, 0, MXC_MAX_EXP_IO_LINES, numa_node_id());
+ WARN_ON(irq_base < 0);
+
+ domain = irq_domain_add_legacy(NULL, MXC_MAX_EXP_IO_LINES, irq_base, 0,
+ &irq_domain_simple_ops, NULL);
+ WARN_ON(!domain);
+
+ for (i = irq_base; i < irq_base + MXC_MAX_EXP_IO_LINES; i++) {
+ irq_set_chip_and_handler(i, &expio_irq_chip, handle_level_irq);
+ irq_clear_status_flags(i, IRQ_NOREQUEST);
+ }
+ irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_4));
+ irq_set_irq_type(irq, IRQ_TYPE_LEVEL_HIGH);
+ irq_set_chained_handler(irq, 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,
+};
+#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 number is run-time assigned */
+ },
+#endif
+};
+
+static void __init mxc_init_i2c(void)
+{
+#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
+ mx31ads_i2c1_devices[0].irq =
+ gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
+#endif
+ 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 __init mxc_init_audio(void)
+{
+ imx31_add_imx_ssi(0, NULL);
+ mxc_iomux_setup_multiple_pins(ssi_pins, ARRAY_SIZE(ssi_pins), "ssi");
+}
+
+/*
+ * Static mappings, starting from the CS4 start address up to the start address
+ * of the CS8900.
+ */
+static struct map_desc mx31ads_io_desc[] __initdata = {
+ {
+ .virtual = (unsigned long)MX31_CS4_BASE_ADDR_VIRT,
+ .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
+ .length = CS4_CS8900_MMIO_START,
+ .type = MT_DEVICE
+ },
+};
+
+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(void)
+{
+ imx31_soc_init();
+
+ mxc_init_imx_uart();
+ mxc_init_audio();
+}
+
+static void __init mx31ads_late(void)
+{
+ mx31ads_init_expio();
+ mxc_init_extuart();
+ mxc_init_i2c();
+ mxc_init_ext_ethernet();
+}
+
+static void __init mx31ads_timer_init(void)
+{
+ mx31_clocks_init(26000000);
+}
+
+MACHINE_START(MX31ADS, "Freescale MX31ADS")
+ /* Maintainer: Freescale Semiconductor, Inc. */
+ .atag_offset = 0x100,
+ .map_io = mx31ads_map_io,
+ .init_early = imx31_init_early,
+ .init_irq = mx31_init_irq,
+ .init_time = mx31ads_timer_init,
+ .init_machine = mx31ads_init,
+ .init_late = mx31ads_late,
+ .restart = mxc_restart,
+MACHINE_END
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 21:08:16 +0000