2 * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
16 * Boston, MA 02110-1301, USA.
19 #include <linux/types.h>
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/clk.h>
23 #include <linux/irq.h>
24 #include <linux/gpio.h>
25 #include <linux/fec.h>
26 #include <linux/platform_device.h>
28 #include <mach/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/time.h>
32 #include <asm/memory.h>
33 #include <asm/mach/map.h>
34 #include <mach/common.h>
35 #include <mach/imx-uart.h>
36 #include <mach/mx25.h>
37 #include <mach/mxc_nand.h>
39 #include <mach/iomux.h>
41 static struct imxuart_platform_data uart_pdata = {
42 .flags = IMXUART_HAVE_RTSCTS,
45 static struct pad_desc mx25pdk_pads[] = {
46 MX25_PAD_FEC_MDC__FEC_MDC,
47 MX25_PAD_FEC_MDIO__FEC_MDIO,
48 MX25_PAD_FEC_TDATA0__FEC_TDATA0,
49 MX25_PAD_FEC_TDATA1__FEC_TDATA1,
50 MX25_PAD_FEC_TX_EN__FEC_TX_EN,
51 MX25_PAD_FEC_RDATA0__FEC_RDATA0,
52 MX25_PAD_FEC_RDATA1__FEC_RDATA1,
53 MX25_PAD_FEC_RX_DV__FEC_RX_DV,
54 MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
55 MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
56 MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
59 static struct fec_platform_data mx25_fec_pdata = {
60 .phy = PHY_INTERFACE_MODE_RMII,
63 #define FEC_ENABLE_GPIO 35
64 #define FEC_RESET_B_GPIO 104
66 static void __init mx25pdk_fec_reset(void)
68 gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
69 gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
71 gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */
72 gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
75 /* turn on PHY power and lift reset */
76 gpio_set_value(FEC_ENABLE_GPIO, 1);
77 gpio_set_value(FEC_RESET_B_GPIO, 1);
80 static struct mxc_nand_platform_data mx25pdk_nand_board_info = {
86 static void __init mx25pdk_init(void)
88 mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
89 ARRAY_SIZE(mx25pdk_pads));
91 mxc_register_device(&mxc_uart_device0, &uart_pdata);
92 mxc_register_device(&mxc_usbh2, NULL);
93 mxc_register_device(&mxc_nand_device, &mx25pdk_nand_board_info);
96 mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
99 static void __init mx25pdk_timer_init(void)
104 static struct sys_timer mx25pdk_timer = {
105 .init = mx25pdk_timer_init,
108 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
109 /* Maintainer: Freescale Semiconductor, Inc. */
110 .phys_io = MX25_AIPS1_BASE_ADDR,
111 .io_pg_offst = ((MX25_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
112 .boot_params = PHYS_OFFSET + 0x100,
113 .map_io = mx25_map_io,
114 .init_irq = mx25_init_irq,
115 .init_machine = mx25pdk_init,
116 .timer = &mx25pdk_timer,