mirror of https://gitee.com/openkylin/linux.git
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
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/*
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* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
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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/fec.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx53.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 "crm_regs.h"
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#include "devices-imx53.h"
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#define SMD_FEC_PHY_RST IMX_GPIO_NR(7, 6)
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static iomux_v3_cfg_t mx53_smd_pads[] = {
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MX53_PAD_CSI0_D10__UART1_TXD,
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MX53_PAD_CSI0_D11__UART1_RXD,
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MX53_PAD_ATA_DIOW__UART1_TXD,
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MX53_PAD_ATA_DMACK__UART1_RXD,
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MX53_PAD_ATA_BUFFER_EN__UART2_RXD,
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MX53_PAD_ATA_DMARQ__UART2_TXD,
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MX53_PAD_ATA_DIOR__UART2_RTS,
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MX53_PAD_ATA_INTRQ__UART2_CTS,
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MX53_PAD_ATA_CS_0__UART3_TXD,
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MX53_PAD_ATA_CS_1__UART3_RXD,
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MX53_PAD_ATA_DA_1__UART3_CTS,
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MX53_PAD_ATA_DA_2__UART3_RTS,
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};
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static const struct imxuart_platform_data mx53_smd_uart_data __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static inline void mx53_smd_init_uart(void)
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{
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imx53_add_imx_uart(0, &mx53_smd_uart_data);
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imx53_add_imx_uart(1, &mx53_smd_uart_data);
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imx53_add_imx_uart(2, &mx53_smd_uart_data);
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}
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static inline void mx53_smd_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(SMD_FEC_PHY_RST, "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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gpio_direction_output(SMD_FEC_PHY_RST, 0);
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msleep(1);
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gpio_set_value(SMD_FEC_PHY_RST, 1);
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}
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static struct fec_platform_data mx53_smd_fec_data = {
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.phy = PHY_INTERFACE_MODE_RMII,
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};
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static void __init mx53_smd_board_init(void)
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{
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mxc_iomux_v3_setup_multiple_pads(mx53_smd_pads,
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ARRAY_SIZE(mx53_smd_pads));
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mx53_smd_init_uart();
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mx53_smd_fec_reset();
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imx53_add_fec(&mx53_smd_fec_data);
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}
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static void __init mx53_smd_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_smd_timer = {
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.init = mx53_smd_timer_init,
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};
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MACHINE_START(MX53_SMD, "Freescale MX53 SMD Board")
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.map_io = mx53_map_io,
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.init_irq = mx53_init_irq,
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.init_machine = mx53_smd_board_init,
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.timer = &mx53_smd_timer,
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MACHINE_END
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