diff options
Diffstat (limited to 'arch/arm/mach-mx5/mx51_3stack.c')
| -rw-r--r-- | arch/arm/mach-mx5/mx51_3stack.c | 1078 |
1 files changed, 1078 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/mx51_3stack.c b/arch/arm/mach-mx5/mx51_3stack.c new file mode 100644 index 000000000000..3188cc77bf45 --- /dev/null +++ b/arch/arm/mach-mx5/mx51_3stack.c @@ -0,0 +1,1078 @@ +/* + * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <linux/types.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/fsl_devices.h> +#include <linux/smsc911x.h> +#include <linux/spi/spi.h> +#include <linux/i2c.h> +#include <linux/ata.h> +#include <linux/pmic_external.h> +#include <linux/ipu.h> +#include <linux/pwm_backlight.h> +#if defined(CONFIG_MTD) || defined(CONFIG_MTD_MODULE) +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> + +#include <asm/mach/flash.h> +#endif + +#include <linux/regulator/consumer.h> +#include <mach/hardware.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/mach/keypad.h> +#include <mach/common.h> +#include <mach/gpio.h> +#include <mach/mmc.h> +#include <mach/mxc_dvfs.h> +#include <mach/i2c.h> + +#include "devices.h" +#include "iomux.h" +#include "mx51_pins.h" +#include "crm_regs.h" +#include "usb.h" + +/*! + * @file mach-mx51/mx51_3stack.c + * + * @brief This file contains the board specific initialization routines. + * + * @ingroup MSL_MX51 + */ +#define DEBUG_BOARD_BASE_ADDRESS(n) (n) +/* LAN9217 ethernet base address */ +#define LAN9217_BASE_ADDR(n) (DEBUG_BOARD_BASE_ADDRESS(n)) + +#define BOARD_IO_ADDR(n) (DEBUG_BOARD_BASE_ADDRESS(n) + 0x20000) +/* LED switchs */ +#define LED_SWITCH_REG 0x00 +/* buttons */ +#define SWITCH_BUTTONS_REG 0x08 +/* status, interrupt */ +#define INTR_STATUS_REG 0x10 +#define INTR_MASK_REG 0x38 +#define INTR_RESET_REG 0x20 +/* magic word for debug CPLD */ +#define MAGIC_NUMBER1_REG 0x40 +#define MAGIC_NUMBER2_REG 0x48 +/* CPLD code version */ +#define CPLD_CODE_VER_REG 0x50 +/* magic word for debug CPLD */ +#define MAGIC_NUMBER3_REG 0x58 +/* module reset register*/ +#define MODULE_RESET_REG 0x60 +/* CPU ID and Personality ID */ +#define MCU_BOARD_ID_REG 0x68 + +/* interrupts like external uart , external ethernet etc*/ +#define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX51_PIN_GPIO1_6) + +#define EXPIO_INT_ENET (MXC_BOARD_IRQ_START + 0) +#define EXPIO_INT_XUART_A (MXC_BOARD_IRQ_START + 1) +#define EXPIO_INT_XUART_B (MXC_BOARD_IRQ_START + 2) +#define EXPIO_INT_BUTTON_A (MXC_BOARD_IRQ_START + 3) +#define EXPIO_INT_BUTTON_B (MXC_BOARD_IRQ_START + 4) + +#define MXC_IRQ_TO_EXPIO(irq) ((irq) - MXC_BOARD_IRQ_START) + +/*! This is System IRQ used by LAN9217 */ +#define LAN9217_IRQ EXPIO_INT_ENET + +extern int __init mx51_3stack_init_mc13892(void); +extern void __init mx51_3stack_io_init(void); +extern struct cpu_wp *(*get_cpu_wp)(int *wp); +extern void (*set_num_cpu_wp)(int num); +static int num_cpu_wp = 3; +static bool debug_board_present; + +/* working point(wp): 0 - 800MHz; 1 - 166.25MHz; */ +static struct cpu_wp cpu_wp_auto[] = { + { + .pll_rate = 1000000000, + .cpu_rate = 1000000000, + .pdf = 0, + .mfi = 10, + .mfd = 11, + .mfn = 5, + .cpu_podf = 0, + .cpu_voltage = 1175000,}, + { + .pll_rate = 800000000, + .cpu_rate = 800000000, + .pdf = 0, + .mfi = 8, + .mfd = 2, + .mfn = 1, + .cpu_podf = 0, + .cpu_voltage = 1100000,}, + { + .pll_rate = 800000000, + .cpu_rate = 166250000, + .pdf = 4, + .mfi = 8, + .mfd = 2, + .mfn = 1, + .cpu_podf = 4, + .cpu_voltage = 850000,}, +}; + +struct cpu_wp *mx51_3stack_get_cpu_wp(int *wp) +{ + *wp = num_cpu_wp; + return cpu_wp_auto; +} + +void mx51_3stack_set_num_cpu_wp(int num) +{ + num_cpu_wp = num; + return; +} + +static struct mxc_w1_config mxc_w1_data = { + .search_rom_accelerator = 1, +}; + +static u16 keymapping[24] = { + KEY_1, KEY_2, KEY_3, KEY_F1, KEY_UP, KEY_F2, + KEY_4, KEY_5, KEY_6, KEY_LEFT, KEY_SELECT, KEY_RIGHT, + KEY_7, KEY_8, KEY_9, KEY_F3, KEY_DOWN, KEY_F4, + KEY_0, KEY_OK, KEY_ESC, KEY_ENTER, KEY_MENU, KEY_BACK, +}; + +static struct keypad_data keypad_plat_data = { + .rowmax = 4, + .colmax = 6, + .learning = 0, + .delay = 2, + .matrix = keymapping, +}; + +static struct platform_pwm_backlight_data mxc_pwm_backlight_data = { + .pwm_id = 0, + .max_brightness = 255, + .dft_brightness = 128, + .pwm_period_ns = 78770, +}; + +extern void mx5_ipu_reset(void); +static struct mxc_ipu_config mxc_ipu_data = { + .rev = 2, + .reset = mx5_ipu_reset, +}; + +extern void mx5_vpu_reset(void); +static struct mxc_vpu_platform_data mxc_vpu_data = { + .reset = mx5_vpu_reset, +}; + +/* workaround for ecspi chipselect pin may not keep correct level when idle */ +static void mx51_3ds_gpio_spi_chipselect_active(int cspi_mode, int status, + int chipselect) +{ + u32 gpio; + + switch (cspi_mode) { + case 1: + switch (chipselect) { + case 0x1: + mxc_request_iomux(MX51_PIN_CSPI1_SS0, + IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX51_PIN_CSPI1_SS0, + PAD_CTL_HYS_ENABLE | + PAD_CTL_PKE_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST); + break; + case 0x2: + gpio = IOMUX_TO_GPIO(MX51_PIN_CSPI1_SS0); + mxc_request_iomux(MX51_PIN_CSPI1_SS0, + IOMUX_CONFIG_GPIO); + gpio_request(gpio, "cspi1_ss0"); + gpio_direction_output(gpio, 0); + gpio_set_value(gpio, 1 & (~status)); + break; + default: + break; + } + break; + case 2: + break; + case 3: + break; + default: + break; + } +} + +static void mx51_3ds_gpio_spi_chipselect_inactive(int cspi_mode, int status, + int chipselect) +{ + switch (cspi_mode) { + case 1: + switch (chipselect) { + case 0x1: + mxc_free_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_ALT0); + mxc_request_iomux(MX51_PIN_CSPI1_SS0, + IOMUX_CONFIG_GPIO); + mxc_free_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_GPIO); + break; + case 0x2: + mxc_free_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_GPIO); + break; + default: + break; + } + break; + case 2: + break; + case 3: + break; + default: + break; + } +} + +static struct mxc_spi_master mxcspi1_data = { + .maxchipselect = 4, + .spi_version = 23, + .chipselect_active = mx51_3ds_gpio_spi_chipselect_active, + .chipselect_inactive = mx51_3ds_gpio_spi_chipselect_inactive, +}; + +static struct imxi2c_platform_data mxci2c_data = { + .bitrate = 100000, +}; + +static struct mxc_i2c_platform_data mxci2c_hs_data = { + .i2c_clk = 400000, +}; + +static struct tve_platform_data tve_data = { + .dac_reg = "VVIDEO", + .dig_reg = "VDIG", +}; + +static struct mxc_dvfs_platform_data dvfs_core_data = { + .reg_id = "SW1", + .clk1_id = "cpu_clk", + .clk2_id = "gpc_dvfs_clk", + .gpc_cntr_offset = MXC_GPC_CNTR_OFFSET, + .gpc_vcr_offset = MXC_GPC_VCR_OFFSET, + .ccm_cdcr_offset = MXC_CCM_CDCR_OFFSET, + .ccm_cacrr_offset = MXC_CCM_CACRR_OFFSET, + .ccm_cdhipr_offset = MXC_CCM_CDHIPR_OFFSET, + .prediv_mask = 0x1F800, + .prediv_offset = 11, + .prediv_val = 3, + .div3ck_mask = 0xE0000000, + .div3ck_offset = 29, + .div3ck_val = 2, + .emac_val = 0x08, + .upthr_val = 25, + .dnthr_val = 9, + .pncthr_val = 33, + .upcnt_val = 10, + .dncnt_val = 10, + .delay_time = 30, + .num_wp = 3, +}; + +static struct mxc_bus_freq_platform_data bus_freq_data = { + .gp_reg_id = "SW1", + .lp_reg_id = "SW2", +}; + +static struct mxc_dvfsper_data dvfs_per_data = { + .reg_id = "SW2", + .clk_id = "gpc_dvfs_clk", + .gpc_cntr_reg_addr = MXC_GPC_CNTR, + .gpc_vcr_reg_addr = MXC_GPC_VCR, + .gpc_adu = 0x0, + .vai_mask = MXC_DVFSPMCR0_FSVAI_MASK, + .vai_offset = MXC_DVFSPMCR0_FSVAI_OFFSET, + .dvfs_enable_bit = MXC_DVFSPMCR0_DVFEN, + .irq_mask = MXC_DVFSPMCR0_FSVAIM, + .div3_offset = 0, + .div3_mask = 0x7, + .div3_div = 2, + .lp_high = 1250000, + .lp_low = 1250000, +}; + +static struct mxc_spdif_platform_data mxc_spdif_data = { + .spdif_tx = 1, + .spdif_rx = 0, + .spdif_clk_44100 = 0, /* spdif_ext_clk source for 44.1KHz */ + .spdif_clk_48000 = 7, /* audio osc source */ + .spdif_clkid = 0, + .spdif_clk = NULL, /* spdif bus clk */ +}; + + +/* NAND Flash Partitions */ +#ifdef CONFIG_MTD_PARTITIONS + +static struct mtd_partition nand_flash_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = 3 * 1024 * 1024}, + { + .name = "nand.kernel", + .offset = MTDPART_OFS_APPEND, + .size = 5 * 1024 * 1024}, + { + .name = "nand.rootfs", + .offset = MTDPART_OFS_APPEND, + .size = 256 * 1024 * 1024}, + { + .name = "nand.userfs1", + .offset = MTDPART_OFS_APPEND, + .size = 256 * 1024 * 1024}, + { + .name = "nand.userfs2", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL}, +}; + +#endif + +extern void gpio_nand_active(void); +extern void gpio_nand_inactive(void); + +static int nand_init(void) +{ + /* Configure the pins */ + gpio_nand_active(); + return 0; +} + +static void nand_exit(void) +{ + /* Free the pins */ + gpio_nand_inactive(); +} + +static struct flash_platform_data mxc_nand_data = { + #ifdef CONFIG_MTD_PARTITIONS + .parts = nand_flash_partitions, + .nr_parts = ARRAY_SIZE(nand_flash_partitions), + #endif + .width = 1, + .init = nand_init, + .exit = nand_exit, +}; + +/* i.MX MTD NAND Flash Controller */ + +#if defined(CONFIG_MTD_NAND_IMX_NFC) || defined(CONFIG_MTD_NAND_IMX_NFC_MODULE) + +/* + * Platform-specific information about this device. Some of the details depend + * on the SoC. See imx_init_nfc() below for code that fills in the rest. + */ + +static struct imx_nfc_platform_data imx_nfc_platform_data = { + .nfc_major_version = 3, + .nfc_minor_version = 2, + .force_ce = false, + .target_cycle_in_ns = 30, + .clock_name = "nfc_clk", + .set_page_size = 0, + .interleave = false, + #ifdef CONFIG_MTD_PARTITIONS + .partitions = nand_flash_partitions, + .partition_count = ARRAY_SIZE(nand_flash_partitions), + #endif +}; + +#endif /* i.MX MTD NAND Flash Controller */ + +static struct mxc_fb_platform_data fb_data[] = { + { + .interface_pix_fmt = IPU_PIX_FMT_RGB666, + }, + { + .interface_pix_fmt = IPU_PIX_FMT_YUV444, + }, +}; + +static void lcd_reset_to2(void) +{ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_DI1_D1_CS), 0); + ipu_reset_disp_panel(); + + return; +} + +static void lcd_reset(void) +{ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_DISPB2_SER_RS), 0); + gpio_request(IOMUX_TO_GPIO(MX51_PIN_DISPB2_SER_RS), "ser_rs"); + gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_DISPB2_SER_RS), 0); + /* do reset */ + msleep(10); /* tRES >= 100us */ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_DISPB2_SER_RS), 1); + msleep(60); +} + +static struct mxc_lcd_platform_data lcd_data = { + .core_reg = "VIOHI", + .io_reg = "SW4", + .reset = lcd_reset, +}; + +static struct platform_device mxc_lcd_device = { + .name = "lcd_spi", +}; + +static void wvga_reset(void) +{ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_DI1_D1_CS), 1); +} + +static struct mxc_lcd_platform_data lcd_wvga_data = { + .reset = wvga_reset, +}; + +static struct platform_device lcd_wvga_device = { + .name = "lcd_claa", +}; + +static struct platform_device mxcbl_device = { + .name = "mxc_mc13892_bl", +}; + +static void si4702_reset(void) +{ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_DTACK), 0); + msleep(100); + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_DTACK), 1); + msleep(100); +} + +static void si4702_clock_ctl(int flag) +{ +} + +static void si4702_gpio_get(void) +{ + /* reset pin */ + gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_DTACK), "eim_dtack"); + gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_DTACK), 0); +} + +static void si4702_gpio_put(void) +{ +} + +static struct mxc_fm_platform_data si4702_data = { + .reg_vio = "SW4", + .reg_vdd = "VIOHI", + .gpio_get = si4702_gpio_get, + .gpio_put = si4702_gpio_put, + .reset = si4702_reset, + .clock_ctl = si4702_clock_ctl, + .sksnr = 0, + .skcnt = 0, + .band = 0, + .space = 100, + .seekth = 0xa, +}; + +static struct i2c_board_info mxc_i2c1_board_info[] __initdata = { + { + .type = "wm8903-i2c", + .addr = 0x1a, + }, + { + .type = "sgtl5000-i2c", + .addr = 0x0a, + }, + { + .type = "tsc2007", + .addr = 0x48, + .irq = IOMUX_TO_IRQ(MX51_PIN_GPIO1_5), + }, + { + .type = "si4702", + .addr = 0x10, + .platform_data = (void *)&si4702_data, + }, +}; + +static struct mxc_camera_platform_data camera_data = { + .io_regulator = "SW4", + .analog_regulator = "VIOHI", + .mclk = 24000000, + .csi = 0, +}; +static struct mxc_lightsensor_platform_data ls_data = { + .vdd_reg = NULL, + .rext = 100, +}; + +static struct i2c_board_info mxc_i2c_hs_board_info[] __initdata = { + { + .type = "ov3640", + .addr = 0x3C, + .platform_data = (void *)&camera_data, + }, + { + .type = "isl29003", + .addr = 0x44, + .platform_data = &ls_data, + }, +}; + +static struct resource smsc911x_resources[] = { + { + .start = CS5_BASE_ADDR, + .end = CS5_BASE_ADDR + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = LAN9217_IRQ, + .end = LAN9217_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +struct smsc911x_platform_config smsc911x_config = { + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .flags = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY, +}; + +static struct platform_device smsc_lan9217_device = { + .name = "smsc911x", + .id = 0, + .num_resources = ARRAY_SIZE(smsc911x_resources), + .resource = smsc911x_resources, +}; + +static struct mxc_sim_platform_data sim_data = { + .clk_rate = 4000000, + .clock_sim = "sim_clk", + .power_sim = NULL, + .init = NULL, + .exit = NULL, + .detect = 0, +}; + +/*! + * Get WP pin value to detect write protection + */ +static int sdhc_write_protect(struct device *dev) +{ + unsigned short rc = 0; + + if (to_platform_device(dev)->id == 0) + rc = gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_1)); + else + rc = 0; + return rc; +} + +static unsigned int sdhc_get_card_det_status(struct device *dev) +{ + int ret; + + if (to_platform_device(dev)->id == 0) { + ret = gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_0)); + return ret; + } else { /* config the det pin for SDHC2 */ + return 0; + } +} + +static struct mxc_mmc_platform_data mmc1_data = { + .ocr_mask = MMC_VDD_32_33, + .caps = MMC_CAP_4_BIT_DATA, + .min_clk = 150000, + .max_clk = 52000000, + .card_inserted_state = 0, + .status = sdhc_get_card_det_status, + .wp_status = sdhc_write_protect, + .clock_mmc = "esdhc_clk", + .power_mmc = NULL, +}; +static struct mxc_mmc_platform_data mmc2_data = { + .ocr_mask = MMC_VDD_27_28 | MMC_VDD_28_29 | MMC_VDD_29_30 | + MMC_VDD_31_32, + .caps = MMC_CAP_4_BIT_DATA, + .min_clk = 150000, + .max_clk = 50000000, + .card_inserted_state = 0, + .status = sdhc_get_card_det_status, + .wp_status = sdhc_write_protect, + .clock_mmc = "esdhc_clk", +}; + +static u32 brd_io; +static void expio_ack_irq(u32 irq); + +static void mxc_expio_irq_handler(u32 irq, struct irq_desc *desc) +{ + u32 imr_val; + u32 int_valid; + u32 expio_irq; + + desc->chip->mask(irq); /* irq = gpio irq number */ + + imr_val = __raw_readw(brd_io + INTR_MASK_REG); + int_valid = __raw_readw(brd_io + INTR_STATUS_REG) & ~imr_val; + + if (unlikely(!int_valid)) + goto out; + + expio_irq = MXC_BOARD_IRQ_START; + for (; int_valid != 0; int_valid >>= 1, expio_irq++) { + struct irq_desc *d; + if ((int_valid & 1) == 0) + continue; + d = irq_desc + expio_irq; + if (unlikely(!(d->handle_irq))) { + printk(KERN_ERR "\nEXPIO irq: %d unhandled\n", + expio_irq); + BUG(); /* oops */ + } + d->handle_irq(expio_irq, d); + } + + out: + desc->chip->ack(irq); + desc->chip->unmask(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(u32 irq) +{ + u16 reg; + u32 expio = MXC_IRQ_TO_EXPIO(irq); + /* mask the interrupt */ + reg = __raw_readw(brd_io + INTR_MASK_REG); + reg |= (1 << expio); + __raw_writew(reg, brd_io + INTR_MASK_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(u32 irq) +{ + u32 expio = MXC_IRQ_TO_EXPIO(irq); + /* clear the interrupt status */ + __raw_writew(1 << expio, brd_io + INTR_RESET_REG); + __raw_writew(0, brd_io + INTR_RESET_REG); + /* mask the interrupt */ + expio_mask_irq(irq); +} + +/* + * 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(u32 irq) +{ + u16 reg; + u32 expio = MXC_IRQ_TO_EXPIO(irq); + /* unmask the interrupt */ + reg = __raw_readw(brd_io + INTR_MASK_REG); + reg &= ~(1 << expio); + __raw_writew(reg, brd_io + INTR_MASK_REG); +} + +static struct irq_chip expio_irq_chip = { + .ack = expio_ack_irq, + .mask = expio_mask_irq, + .unmask = expio_unmask_irq, +}; + +static int __init mxc_expio_init(void) +{ + int i; + + brd_io = (u32) ioremap(BOARD_IO_ADDR(CS5_BASE_ADDR), SZ_4K); + if (brd_io == 0) + return -ENOMEM; + + if ((__raw_readw(brd_io + MAGIC_NUMBER1_REG) != 0xAAAA) || + (__raw_readw(brd_io + MAGIC_NUMBER2_REG) != 0x5555) || + (__raw_readw(brd_io + MAGIC_NUMBER3_REG) != 0xCAFE)) { + pr_info("3-Stack Debug board not detected \n"); + return -ENODEV; + } else { + debug_board_present = true; + } + + pr_info("3-Stack Debug board detected, rev = 0x%04X\n", + readw(brd_io + CPLD_CODE_VER_REG)); + + /* + * Configure INT line as GPIO input + */ + gpio_request(IOMUX_TO_GPIO(MX51_PIN_GPIO1_6), "gpio1_6"); + gpio_direction_input(IOMUX_TO_GPIO(MX51_PIN_GPIO1_6)); + + /* disable the interrupt and clear the status */ + __raw_writew(0, brd_io + INTR_MASK_REG); + __raw_writew(0xFFFF, brd_io + INTR_RESET_REG); + __raw_writew(0, brd_io + INTR_RESET_REG); + __raw_writew(0x1F, brd_io + INTR_MASK_REG); + for (i = MXC_BOARD_IRQ_START; i < (MXC_BOARD_IRQ_START + MXC_BOARD_IRQS); + 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, IRQF_TRIGGER_LOW); + set_irq_chained_handler(EXPIO_PARENT_INT, mxc_expio_irq_handler); + + return 0; +} + +extern void gpio_ata_active(void); +extern void gpio_ata_inactive(void); + +static int ata_init(struct platform_device *pdev) +{ + /* Configure the pins */ + gpio_ata_active(); + return 0; +} + +static void ata_exit(void) +{ + /* Free the pins */ + gpio_ata_inactive(); +} + +static struct fsl_ata_platform_data ata_data = { + .udma_mask = ATA_UDMA3, + .mwdma_mask = ATA_MWDMA2, + .pio_mask = ATA_PIO4, + .fifo_alarm = MXC_IDE_DMA_WATERMARK / 2, + .max_sg = MXC_IDE_DMA_BD_NR, + .init = ata_init, + .exit = ata_exit, + .core_reg = NULL, + .io_reg = NULL, +}; + +static struct platform_device mxc_wm8903_device = { + .name = "imx-3stack-wm8903", + .id = 0, +}; + +static struct mxc_audio_platform_data wm8903_data; + +static void __init mxc_init_wm8903(void) +{ + wm8903_data.ssi_clk[0] = clk_get(NULL, "ssi_clk.0"); + clk_put(wm8903_data.ssi_clk[0]); + + wm8903_data.ssi_clk[1] = clk_get(NULL, "ssi_clk.1"); + clk_put(wm8903_data.ssi_clk[1]); + + wm8903_data.ssi_num = 1; + wm8903_data.src_port = 2; + wm8903_data.ext_port = 3; + + (void)platform_device_register(&mxc_wm8903_device); +} + +static struct platform_device mxc_sgtl5000_device = { + .name = "imx-3stack-sgtl5000", +}; + +int headphone_det_status(void) +{ + return gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A26)); +} + +static struct mxc_audio_platform_data sgtl5000_data; + +static int mxc_sgtl5000_plat_init(void) +{ + struct regulator *reg; + reg = regulator_get(&mxc_sgtl5000_device.dev, "GPO2"); + if (IS_ERR(reg)) + return -EINVAL; + sgtl5000_data.priv = reg; + return 0; +} + +static int mxc_sgtl5000_plat_finit(void) +{ + struct regulator *reg; + reg = sgtl5000_data.priv; + if (reg) { + regulator_put(reg); + sgtl5000_data.priv = NULL; + } + return 0; +} + +static int mxc_sgtl5000_amp_enable(int enable) +{ + struct regulator *reg; + reg = sgtl5000_data.priv; + + if (!reg) + return -EINVAL; + if (enable) + regulator_enable(reg); + else + regulator_disable(reg); + return 0; +} + +static struct mxc_audio_platform_data sgtl5000_data = { + .ssi_num = 1, + .src_port = 2, + .ext_port = 3, + .hp_irq = IOMUX_TO_IRQ(MX51_PIN_EIM_A26), + .hp_status = headphone_det_status, + .amp_enable = mxc_sgtl5000_amp_enable, + .sysclk = 12000000, + .init = mxc_sgtl5000_plat_init, + .finit = mxc_sgtl5000_plat_finit, +}; + +static void bt_reset(void) +{ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D19), 1); +} + +static struct mxc_bt_platform_data mxc_bt_data = { + .bt_vdd = NULL, + .bt_vdd_parent = NULL, + .bt_vusb = "SW4", + .bt_vusb_parent = NULL, + .bt_reset = bt_reset, +}; + +static struct platform_device mxc_bt_device = { + .name = "mxc_bt", + .id = 0, +}; + +static void mxc_unifi_hardreset(int pin_level) +{ + gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D19), pin_level & 0x01); +} + +static struct mxc_unifi_platform_data unifi_data = { + .hardreset = mxc_unifi_hardreset, + .reg_vdd_vpa = "VSD", + .reg_1v5_dd = "VGEN1", + .host_id = 1, +}; + +struct mxc_unifi_platform_data *get_unifi_plat_data(void) +{ + return &unifi_data; +} +EXPORT_SYMBOL(get_unifi_plat_data); + +/*! + * Board specific fixup function. It is called by \b setup_arch() in + * setup.c file very early on during kernel starts. It allows the user to + * statically fill in the proper values for the passed-in parameters. None of + * the parameters is used currently. + * + * @param desc pointer to \b struct \b machine_desc + * @param tags pointer to \b struct \b tag + * @param cmdline pointer to the command line + * @param mi pointer to \b struct \b meminfo + */ +static void __init fixup_mxc_board(struct machine_desc *desc, struct tag *tags, + char **cmdline, struct meminfo *mi) +{ + mxc_set_cpu_type(MXC_CPU_MX51); + + get_cpu_wp = mx51_3stack_get_cpu_wp; + set_num_cpu_wp = mx51_3stack_set_num_cpu_wp; +} + +static struct mxc_gps_platform_data gps_data = { + .core_reg = "VIOHI", + .analog_reg = "SW4", +}; + +static struct platform_device mxc_gps_device = { + .name = "gps_ioctrl", + .id = -1, +}; + +int gpio_gps_access(int para) +{ + iomux_pin_name_t pin; + pin = (para & 0x1) ? MX51_PIN_EIM_CS2 : MX51_PIN_EIM_CRE; + + if (para & 0x4) /* Read GPIO */ + return gpio_get_value(IOMUX_TO_GPIO(pin)); + else if (para & 0x2) /* Write GPIO */ + gpio_set_value(IOMUX_TO_GPIO(pin), 1); + else + gpio_set_value(IOMUX_TO_GPIO(pin), 0); + return 0; +} +EXPORT_SYMBOL(gpio_gps_access); + +/*! + * Board specific initialization. + */ +static void __init mxc_board_init(void) +{ + int err; + + mxc_ipu_data.di_clk[0] = clk_get(NULL, "ipu_di0_clk"); + mxc_ipu_data.di_clk[1] = clk_get(NULL, "ipu_di1_clk"); + mxc_ipu_data.csi_clk[0] = clk_get(NULL, "csi_mclk1"); + mxc_ipu_data.csi_clk[1] = clk_get(NULL, "csi_mclk2"); + + mxc_spdif_data.spdif_core_clk = clk_get(NULL, "spdif_xtal_clk"); + clk_put(mxc_spdif_data.spdif_core_clk); + + mxc_cpu_common_init(); + mx51_3stack_io_init(); + + mxc_register_device(&mxc_dma_device, NULL); + mxc_register_device(&mxc_wdt_device, NULL); + mxc_register_device(&mxcspi1_device, &mxcspi1_data); + mxc_register_device(&mxci2c_devices[0], &mxci2c_data); + mxc_register_device(&mxci2c_devices[1], &mxci2c_data); + mxc_register_device(&mxci2c_hs_device, &mxci2c_hs_data); + mxc_register_device(&mxc_rtc_device, NULL); + mxc_register_device(&mxc_w1_master_device, &mxc_w1_data); + mxc_register_device(&mxc_ipu_device, &mxc_ipu_data); + mxc_register_device(&mxc_tve_device, &tve_data); + mxc_register_device(&mxcvpu_device, &mxc_vpu_data); + mxc_register_device(&gpu_device, NULL); + mxc_register_device(&mxcscc_device, NULL); + mxc_register_device(&mx51_lpmode_device, NULL); + mxc_register_device(&busfreq_device, &bus_freq_data); + mxc_register_device(&sdram_autogating_device, NULL); + mxc_register_device(&mxc_dvfs_core_device, &dvfs_core_data); + mxc_register_device(&mxc_dvfs_per_device, &dvfs_per_data); + mxc_register_device(&mxc_iim_device, NULL); + mxc_register_device(&mxc_pwm1_device, NULL); + mxc_register_device(&mxc_pwm1_backlight_device, + &mxc_pwm_backlight_data); + mxc_register_device(&mxc_keypad_device, &keypad_plat_data); + mxcsdhc1_device.resource[2].start = IOMUX_TO_IRQ(MX51_PIN_GPIO1_0); + mxcsdhc1_device.resource[2].end = IOMUX_TO_IRQ(MX51_PIN_GPIO1_0); + mxc_register_device(&mxcsdhc1_device, &mmc1_data); + mxc_register_device(&mxcsdhc2_device, &mmc2_data); + mxc_register_device(&mxc_sim_device, &sim_data); + mxc_register_device(&pata_fsl_device, &ata_data); + mxc_register_device(&mxc_alsa_spdif_device, &mxc_spdif_data); + + mxc_expio_init(); + if (debug_board_present) + mxc_register_device(&smsc_lan9217_device, &smsc911x_config); + + if (cpu_is_mx51_rev(CHIP_REV_2_0) > 0) + lcd_data.reset = lcd_reset_to2; + + mxc_register_device(&mxc_lcd_device, &lcd_data); + mxc_register_device(&lcd_wvga_device, &lcd_wvga_data); + mxc_register_device(&mxc_fb_devices[0], &fb_data[0]); + mxc_register_device(&mxc_fb_devices[1], &fb_data[1]); + mxc_register_device(&mxc_fb_devices[2], NULL); + mxc_register_device(&mxcbl_device, NULL); + +#if defined(CONFIG_MTD_NAND_IMX_NFC) || defined(CONFIG_MTD_NAND_IMX_NFC_MODULE) + mxc_register_device(&imx_nfc_device, &imx_nfc_platform_data); +#else + mxc_register_device(&mxc_nandv2_mtd_device, &mxc_nand_data); +#endif + mx51_3stack_init_mc13892(); + + i2c_register_board_info(1, mxc_i2c1_board_info, + ARRAY_SIZE(mxc_i2c1_board_info)); + i2c_register_board_info(3, mxc_i2c_hs_board_info, + ARRAY_SIZE(mxc_i2c_hs_board_info)); + + mxc_init_wm8903(); + mxc_register_device(&mxc_sgtl5000_device, &sgtl5000_data); + mxc_register_device(&mxc_bt_device, &mxc_bt_data); + mxc_register_device(&mxc_gps_device, &gps_data); + mxc_register_device(&mxc_v4l2_device, NULL); + mxc_register_device(&mxc_v4l2out_device, NULL); + + mx5_usb_dr_init(); + mx5_usbh1_init(); + + /* Setup Touchscreen interrupt */ + gpio_request(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), "gpio1_5"); + gpio_direction_input(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5)); + + err = mxc_request_iomux(MX51_PIN_EIM_D19, IOMUX_CONFIG_GPIO); + if (err) + printk(KERN_ERR "Error: bt reset request gpio failed!\n"); + else { + gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_D19), "eim_d19"); + gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_D19), 0); + } +} + +static void __init mx51_3stack_timer_init(void) +{ + struct clk *uart_clk; + + /* Change the CPU voltages for TO2*/ + if (cpu_is_mx51_rev(CHIP_REV_2_0) <= 1) { + cpu_wp_auto[0].cpu_voltage = 1175000; + cpu_wp_auto[1].cpu_voltage = 1100000; + cpu_wp_auto[2].cpu_voltage = 1000000; + } + + mx51_clocks_init(32768, 24000000, 22579200, 24576000); + + uart_clk = clk_get(NULL, "uart_clk.0"); + early_console_setup(UART1_BASE_ADDR, uart_clk); +} + +static struct sys_timer mxc_timer = { + .init = mx51_3stack_timer_init, +}; + +/* + * The following uses standard kernel macros define in arch.h in order to + * initialize __mach_desc_MX51_3STACK data structure. + */ +/* *INDENT-OFF* */ +MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board") + /* Maintainer: Freescale Semiconductor, Inc. */ + .fixup = fixup_mxc_board, + .map_io = mx5_map_io, + .init_irq = mx5_init_irq, + .init_machine = mxc_board_init, + .timer = &mxc_timer, +MACHINE_END |