mirror of https://gitee.com/openkylin/linux.git
173 lines
4.4 KiB
C
173 lines
4.4 KiB
C
/*
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* Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright (C) 2010 Yong Shen. <Yong.Shen@linaro.org>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/spi/flash.h>
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#include <linux/spi/spi.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <mach/iomux-mx53.h>
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#define MX53_EVK_FEC_PHY_RST IMX_GPIO_NR(7, 6)
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#define EVK_ECSPI1_CS0 IMX_GPIO_NR(2, 30)
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#define EVK_ECSPI1_CS1 IMX_GPIO_NR(3, 19)
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#define MX53EVK_LED IMX_GPIO_NR(7, 7)
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#include "crm_regs.h"
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#include "devices-imx53.h"
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static iomux_v3_cfg_t mx53_evk_pads[] = {
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MX53_PAD_CSI0_DAT10__UART1_TXD_MUX,
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MX53_PAD_CSI0_DAT11__UART1_RXD_MUX,
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MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
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MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
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MX53_PAD_PATA_DIOR__UART2_RTS,
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MX53_PAD_PATA_INTRQ__UART2_CTS,
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MX53_PAD_PATA_CS_0__UART3_TXD_MUX,
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MX53_PAD_PATA_CS_1__UART3_RXD_MUX,
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MX53_PAD_EIM_D16__ECSPI1_SCLK,
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MX53_PAD_EIM_D17__ECSPI1_MISO,
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MX53_PAD_EIM_D18__ECSPI1_MOSI,
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/* ecspi chip select lines */
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MX53_PAD_EIM_EB2__GPIO2_30,
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MX53_PAD_EIM_D19__GPIO3_19,
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/* LED */
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MX53_PAD_PATA_DA_1__GPIO7_7,
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};
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static const struct imxuart_platform_data mx53_evk_uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static const struct gpio_led mx53evk_leds[] __initconst = {
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{
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.name = "green",
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.default_trigger = "heartbeat",
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.gpio = MX53EVK_LED,
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},
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};
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static const struct gpio_led_platform_data mx53evk_leds_data __initconst = {
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.leds = mx53evk_leds,
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.num_leds = ARRAY_SIZE(mx53evk_leds),
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};
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static inline void mx53_evk_init_uart(void)
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{
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imx53_add_imx_uart(0, NULL);
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imx53_add_imx_uart(1, &mx53_evk_uart_pdata);
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imx53_add_imx_uart(2, NULL);
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}
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static const struct imxi2c_platform_data mx53_evk_i2c_data __initconst = {
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.bitrate = 100000,
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};
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static inline void mx53_evk_fec_reset(void)
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{
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int ret;
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/* reset FEC PHY */
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ret = gpio_request_one(MX53_EVK_FEC_PHY_RST, GPIOF_OUT_INIT_LOW,
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"fec-phy-reset");
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if (ret) {
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printk(KERN_ERR"failed to get GPIO_FEC_PHY_RESET: %d\n", ret);
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return;
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}
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msleep(1);
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gpio_set_value(MX53_EVK_FEC_PHY_RST, 1);
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}
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static struct fec_platform_data mx53_evk_fec_pdata = {
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.phy = PHY_INTERFACE_MODE_RMII,
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};
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static struct spi_board_info mx53_evk_spi_board_info[] __initdata = {
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{
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.modalias = "mtd_dataflash",
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.max_speed_hz = 25000000,
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.bus_num = 0,
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.chip_select = 1,
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.mode = SPI_MODE_0,
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.platform_data = NULL,
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},
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};
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static int mx53_evk_spi_cs[] = {
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EVK_ECSPI1_CS0,
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EVK_ECSPI1_CS1,
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};
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static const struct spi_imx_master mx53_evk_spi_data __initconst = {
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.chipselect = mx53_evk_spi_cs,
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.num_chipselect = ARRAY_SIZE(mx53_evk_spi_cs),
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};
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static void __init mx53_evk_board_init(void)
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{
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imx53_soc_init();
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mxc_iomux_v3_setup_multiple_pads(mx53_evk_pads,
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ARRAY_SIZE(mx53_evk_pads));
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mx53_evk_init_uart();
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mx53_evk_fec_reset();
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imx53_add_fec(&mx53_evk_fec_pdata);
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imx53_add_imx_i2c(0, &mx53_evk_i2c_data);
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imx53_add_imx_i2c(1, &mx53_evk_i2c_data);
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imx53_add_sdhci_esdhc_imx(0, NULL);
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imx53_add_sdhci_esdhc_imx(1, NULL);
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spi_register_board_info(mx53_evk_spi_board_info,
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ARRAY_SIZE(mx53_evk_spi_board_info));
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imx53_add_ecspi(0, &mx53_evk_spi_data);
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imx53_add_imx2_wdt(0, NULL);
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gpio_led_register_device(-1, &mx53evk_leds_data);
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}
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static void __init mx53_evk_timer_init(void)
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{
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mx53_clocks_init(32768, 24000000, 22579200, 0);
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}
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static struct sys_timer mx53_evk_timer = {
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.init = mx53_evk_timer_init,
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};
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MACHINE_START(MX53_EVK, "Freescale MX53 EVK Board")
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.map_io = mx53_map_io,
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.init_early = imx53_init_early,
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.init_irq = mx53_init_irq,
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.timer = &mx53_evk_timer,
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.init_machine = mx53_evk_board_init,
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MACHINE_END
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