diff options
Diffstat (limited to 'arch/arm/mach-mx28/mx28evk.c')
| -rw-r--r-- | arch/arm/mach-mx28/mx28evk.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/arch/arm/mach-mx28/mx28evk.c b/arch/arm/mach-mx28/mx28evk.c new file mode 100644 index 000000000000..97ce49c20d9d --- /dev/null +++ b/arch/arm/mach-mx28/mx28evk.c @@ -0,0 +1,163 @@ +/* + * Copyright (C) 2009-2011 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> + +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include <mach/hardware.h> +#include <mach/device.h> +#include <mach/pinctrl.h> + +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> + +#include "device.h" +#include "mx28evk.h" + +static struct i2c_board_info __initdata mxs_i2c_device[] = { + { I2C_BOARD_INFO("sgtl5000-i2c", 0xa), .flags = I2C_M_TEN } +}; + +static void __init i2c_device_init(void) +{ + i2c_register_board_info(0, mxs_i2c_device, ARRAY_SIZE(mxs_i2c_device)); +} +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) +static struct flash_platform_data mx28_spi_flash_data = { + .name = "m25p80", + .type = "w25x80", +}; +#endif + +static struct spi_board_info spi_board_info[] __initdata = { +#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE) + { + /* the modalias must be the same as spi device driver name */ + .modalias = "m25p80", /* Name of spi_driver for this device */ + .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, /* Framework bus number */ + .chip_select = 0, /* Framework chip select. */ + .platform_data = &mx28_spi_flash_data, + }, +#endif +}; + +static void spi_device_init(void) +{ + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); +} + +static void __init fixup_board(struct machine_desc *desc, struct tag *tags, + char **cmdline, struct meminfo *mi) +{ + mx28_set_input_clk(24000000, 24000000, 32000, 50000000); +} + +#if defined(CONFIG_LEDS_MXS) || defined(CONFIG_LEDS_MXS_MODULE) +static struct mxs_pwm_led mx28evk_led_pwm[2] = { + [0] = { + .name = "led-pwm0", + .pwm = 0, + }, + [1] = { + .name = "led-pwm1", + .pwm = 1, + }, +}; + +struct mxs_pwm_leds_plat_data mx28evk_led_data = { + .num = ARRAY_SIZE(mx28evk_led_pwm), + .leds = mx28evk_led_pwm, +}; + +static struct resource mx28evk_led_res = { + .flags = IORESOURCE_MEM, + .start = PWM_PHYS_ADDR, + .end = PWM_PHYS_ADDR + 0x3FFF, +}; + +static void __init mx28evk_init_leds(void) +{ + struct platform_device *pdev; + + pdev = mxs_get_device("mxs-leds", 0); + if (pdev == NULL || IS_ERR(pdev)) + return; + + pdev->resource = &mx28evk_led_res; + pdev->num_resources = 1; + pdev->dev.platform_data = &mx28evk_led_data; + mxs_add_device(pdev, 3); +} +#else +static void __init mx28evk_init_leds(void) +{ + ; +} +#endif + +static void __init mx28evk_device_init(void) +{ + /* Add mx28evk special code */ + i2c_device_init(); + spi_device_init(); + mx28evk_init_leds(); +} + +static void __init mx28evk_init_machine(void) +{ + mx28_pinctrl_init(); + /* Init iram allocate */ +#ifdef CONFIG_VECTORS_PHY_ADDR + /* reserve the first page for irq vector table*/ + iram_init(MX28_OCRAM_PHBASE + PAGE_SIZE, MX28_OCRAM_SIZE - PAGE_SIZE); +#else + iram_init(MX28_OCRAM_PHBASE, MX28_OCRAM_SIZE); +#endif + + mx28_gpio_init(); + mx28evk_pins_init(); + mx28_device_init(); + mx28evk_device_init(); + + /* init the system revesion */ + system_rev = 0x28011; +} + +MACHINE_START(MX28EVK, "Freescale MX28EVK board") + .phys_io = 0x80000000, + .io_pg_offst = ((0xf0000000) >> 18) & 0xfffc, + .boot_params = 0x40000100, + .fixup = fixup_board, + .map_io = mx28_map_io, + .init_irq = mx28_irq_init, + .init_machine = mx28evk_init_machine, + .timer = &mx28_timer.timer, +MACHINE_END |