diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-mx53_evk.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-mx53_evk.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx53_evk.c b/arch/arm/mach-imx/mach-mx53_evk.c new file mode 100644 index 00000000000..5a72188b9cd --- /dev/null +++ b/arch/arm/mach-imx/mach-mx53_evk.c @@ -0,0 +1,178 @@ +/* + * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2010 Yong Shen. <Yong.Shen@linaro.org> + */ + +/* + * 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/init.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/spi/flash.h> +#include <linux/spi/spi.h> +#include <mach/common.h> +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <mach/iomux-mx53.h> + +#define MX53_EVK_FEC_PHY_RST IMX_GPIO_NR(7, 6) +#define EVK_ECSPI1_CS0 IMX_GPIO_NR(2, 30) +#define EVK_ECSPI1_CS1 IMX_GPIO_NR(3, 19) +#define MX53EVK_LED IMX_GPIO_NR(7, 7) + +#include "devices-imx53.h" + +static iomux_v3_cfg_t mx53_evk_pads[] = { + MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, + MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, + + MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX, + MX53_PAD_PATA_DMARQ__UART2_TXD_MUX, + MX53_PAD_PATA_DIOR__UART2_RTS, + MX53_PAD_PATA_INTRQ__UART2_CTS, + + MX53_PAD_PATA_CS_0__UART3_TXD_MUX, + MX53_PAD_PATA_CS_1__UART3_RXD_MUX, + + MX53_PAD_EIM_D16__ECSPI1_SCLK, + MX53_PAD_EIM_D17__ECSPI1_MISO, + MX53_PAD_EIM_D18__ECSPI1_MOSI, + + /* ecspi chip select lines */ + MX53_PAD_EIM_EB2__GPIO2_30, + MX53_PAD_EIM_D19__GPIO3_19, + /* LED */ + MX53_PAD_PATA_DA_1__GPIO7_7, +}; + +static const struct imxuart_platform_data mx53_evk_uart_pdata __initconst = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static const struct gpio_led mx53evk_leds[] __initconst = { + { + .name = "green", + .default_trigger = "heartbeat", + .gpio = MX53EVK_LED, + }, +}; + +static const struct gpio_led_platform_data mx53evk_leds_data __initconst = { + .leds = mx53evk_leds, + .num_leds = ARRAY_SIZE(mx53evk_leds), +}; + +static inline void mx53_evk_init_uart(void) +{ + imx53_add_imx_uart(0, NULL); + imx53_add_imx_uart(1, &mx53_evk_uart_pdata); + imx53_add_imx_uart(2, NULL); +} + +static const struct imxi2c_platform_data mx53_evk_i2c_data __initconst = { + .bitrate = 100000, +}; + +static inline void mx53_evk_fec_reset(void) +{ + int ret; + + /* reset FEC PHY */ + ret = gpio_request_one(MX53_EVK_FEC_PHY_RST, GPIOF_OUT_INIT_LOW, + "fec-phy-reset"); + if (ret) { + printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret); + return; + } + msleep(1); + gpio_set_value(MX53_EVK_FEC_PHY_RST, 1); +} + +static const struct fec_platform_data mx53_evk_fec_pdata __initconst = { + .phy = PHY_INTERFACE_MODE_RMII, +}; + +static struct spi_board_info mx53_evk_spi_board_info[] __initdata = { + { + .modalias = "mtd_dataflash", + .max_speed_hz = 25000000, + .bus_num = 0, + .chip_select = 1, + .mode = SPI_MODE_0, + .platform_data = NULL, + }, +}; + +static int mx53_evk_spi_cs[] = { + EVK_ECSPI1_CS0, + EVK_ECSPI1_CS1, +}; + +static const struct spi_imx_master mx53_evk_spi_data __initconst = { + .chipselect = mx53_evk_spi_cs, + .num_chipselect = ARRAY_SIZE(mx53_evk_spi_cs), +}; + +void __init imx53_evk_common_init(void) +{ + mxc_iomux_v3_setup_multiple_pads(mx53_evk_pads, + ARRAY_SIZE(mx53_evk_pads)); +} + +static void __init mx53_evk_board_init(void) +{ + imx53_soc_init(); + imx53_evk_common_init(); + + mx53_evk_init_uart(); + mx53_evk_fec_reset(); + imx53_add_fec(&mx53_evk_fec_pdata); + + imx53_add_imx_i2c(0, &mx53_evk_i2c_data); + imx53_add_imx_i2c(1, &mx53_evk_i2c_data); + + imx53_add_sdhci_esdhc_imx(0, NULL); + imx53_add_sdhci_esdhc_imx(1, NULL); + + spi_register_board_info(mx53_evk_spi_board_info, + ARRAY_SIZE(mx53_evk_spi_board_info)); + imx53_add_ecspi(0, &mx53_evk_spi_data); + imx53_add_imx2_wdt(0, NULL); + gpio_led_register_device(-1, &mx53evk_leds_data); +} + +static void __init mx53_evk_timer_init(void) +{ + mx53_clocks_init(32768, 24000000, 22579200, 0); +} + +static struct sys_timer mx53_evk_timer = { + .init = mx53_evk_timer_init, +}; + +MACHINE_START(MX53_EVK, "Freescale MX53 EVK Board") + .map_io = mx53_map_io, + .init_early = imx53_init_early, + .init_irq = mx53_init_irq, + .handle_irq = imx53_handle_irq, + .timer = &mx53_evk_timer, + .init_machine = mx53_evk_board_init, + .restart = mxc_restart, +MACHINE_END |