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 void __init
mx25pdk_init(void)
82 mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads
,
83 ARRAY_SIZE(mx25pdk_pads
));
85 mxc_register_device(&mxc_uart_device0
, &uart_pdata
);
86 mxc_register_device(&mxc_usbh2
, NULL
);
89 mxc_register_device(&mx25_fec_device
, &mx25_fec_pdata
);
92 static void __init
mx25pdk_timer_init(void)
94 mx25_clocks_init(26000000);
97 static struct sys_timer mx25pdk_timer
= {
98 .init
= mx25pdk_timer_init
,
101 MACHINE_START(MX25_3DS
, "Freescale MX25PDK (3DS)")
102 /* Maintainer: Freescale Semiconductor, Inc. */
103 .phys_io
= MX25_AIPS1_BASE_ADDR
,
104 .io_pg_offst
= ((MX25_AIPS1_BASE_ADDR_VIRT
) >> 18) & 0xfffc,
105 .boot_params
= PHYS_OFFSET
+ 0x100,
106 .map_io
= mx25_map_io
,
107 .init_irq
= mx25_init_irq
,
108 .init_machine
= mx25pdk_init
,
109 .timer
= &mx25pdk_timer
,