112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
/*
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* Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/clk.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <linux/fec.h>
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#include <linux/platform_device.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 <asm/memory.h>
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#include <asm/mach/map.h>
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#include <mach/common.h>
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#include <mach/imx-uart.h>
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#include <mach/mx25.h>
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#include <mach/mxc_nand.h>
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#include "devices.h"
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#include <mach/iomux.h>
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct pad_desc mx25pdk_pads[] = {
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MX25_PAD_FEC_MDC__FEC_MDC,
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MX25_PAD_FEC_MDIO__FEC_MDIO,
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MX25_PAD_FEC_TDATA0__FEC_TDATA0,
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MX25_PAD_FEC_TDATA1__FEC_TDATA1,
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MX25_PAD_FEC_TX_EN__FEC_TX_EN,
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MX25_PAD_FEC_RDATA0__FEC_RDATA0,
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MX25_PAD_FEC_RDATA1__FEC_RDATA1,
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MX25_PAD_FEC_RX_DV__FEC_RX_DV,
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MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
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MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
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MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
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};
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static struct fec_platform_data mx25_fec_pdata = {
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.phy = PHY_INTERFACE_MODE_RMII,
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};
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#define FEC_ENABLE_GPIO 35
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#define FEC_RESET_B_GPIO 104
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static void __init mx25pdk_fec_reset(void)
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{
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gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
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gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
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gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */
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gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
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udelay(2);
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/* turn on PHY power and lift reset */
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gpio_set_value(FEC_ENABLE_GPIO, 1);
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gpio_set_value(FEC_RESET_B_GPIO, 1);
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}
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static void __init mx25pdk_init(void)
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{
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mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
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ARRAY_SIZE(mx25pdk_pads));
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mxc_register_device(&mxc_uart_device0, &uart_pdata);
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mxc_register_device(&mxc_usbh2, NULL);
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mx25pdk_fec_reset();
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mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
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}
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static void __init mx25pdk_timer_init(void)
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{
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mx25_clocks_init(26000000);
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}
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static struct sys_timer mx25pdk_timer = {
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.init = mx25pdk_timer_init,
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};
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MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
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/* Maintainer: Freescale Semiconductor, Inc. */
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.phys_io = MX25_AIPS1_BASE_ADDR,
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.io_pg_offst = ((MX25_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mx25_map_io,
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.init_irq = mx25_init_irq,
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.init_machine = mx25pdk_init,
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.timer = &mx25pdk_timer,
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MACHINE_END
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