arch/arm/mach-mx25/mach-mx25pdk.c

   1 /*
   2  * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
   3  *
   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.
  12  *
  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.
  17  */
  18
  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>
  27
  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>
  38 #include <mach/imxfb.h>
  39 #include "devices.h"
  40 #include <mach/iomux-mx25.h>
  41
  42 static struct imxuart_platform_data uart_pdata = {
  43         .flags = IMXUART_HAVE_RTSCTS,
  44 };
  45
  46 static struct pad_desc mx25pdk_pads[] = {
  47         MX25_PAD_FEC_MDC__FEC_MDC,
  48         MX25_PAD_FEC_MDIO__FEC_MDIO,
  49         MX25_PAD_FEC_TDATA0__FEC_TDATA0,
  50         MX25_PAD_FEC_TDATA1__FEC_TDATA1,
  51         MX25_PAD_FEC_TX_EN__FEC_TX_EN,
  52         MX25_PAD_FEC_RDATA0__FEC_RDATA0,
  53         MX25_PAD_FEC_RDATA1__FEC_RDATA1,
  54         MX25_PAD_FEC_RX_DV__FEC_RX_DV,
  55         MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
  56         MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
  57         MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
  58
  59         /* LCD */
  60         MX25_PAD_LD0__LD0,
  61         MX25_PAD_LD1__LD1,
  62         MX25_PAD_LD2__LD2,
  63         MX25_PAD_LD3__LD3,
  64         MX25_PAD_LD4__LD4,
  65         MX25_PAD_LD5__LD5,
  66         MX25_PAD_LD6__LD6,
  67         MX25_PAD_LD7__LD7,
  68         MX25_PAD_LD8__LD8,
  69         MX25_PAD_LD9__LD9,
  70         MX25_PAD_LD10__LD10,
  71         MX25_PAD_LD11__LD11,
  72         MX25_PAD_LD12__LD12,
  73         MX25_PAD_LD13__LD13,
  74         MX25_PAD_LD14__LD14,
  75         MX25_PAD_LD15__LD15,
  76         MX25_PAD_GPIO_E__LD16,
  77         MX25_PAD_GPIO_F__LD17,
  78         MX25_PAD_HSYNC__HSYNC,
  79         MX25_PAD_VSYNC__VSYNC,
  80         MX25_PAD_LSCLK__LSCLK,
  81         MX25_PAD_OE_ACD__OE_ACD,
  82         MX25_PAD_CONTRAST__CONTRAST,
  83 };
  84
  85 static struct fec_platform_data mx25_fec_pdata = {
  86         .phy    = PHY_INTERFACE_MODE_RMII,
  87 };
  88
  89 #define FEC_ENABLE_GPIO         35
  90 #define FEC_RESET_B_GPIO        104
  91
  92 static void __init mx25pdk_fec_reset(void)
  93 {
  94         gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
  95         gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
  96
  97         gpio_direction_output(FEC_ENABLE_GPIO, 0);  /* drop PHY power */
  98         gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
  99         udelay(2);
 100
 101         /* turn on PHY power and lift reset */
 102         gpio_set_value(FEC_ENABLE_GPIO, 1);
 103         gpio_set_value(FEC_RESET_B_GPIO, 1);
 104 }
 105
 106 static struct mxc_nand_platform_data mx25pdk_nand_board_info = {
 107         .width          = 1,
 108         .hw_ecc         = 1,
 109         .flash_bbt      = 1,
 110 };
 111
 112 static struct imx_fb_videomode mx25pdk_modes[] = {
 113         {
 114                 .mode   = {
 115                         .name           = "CRT-VGA",
 116                         .refresh        = 60,
 117                         .xres           = 640,
 118                         .yres           = 480,
 119                         .pixclock       = 39683,
 120                         .left_margin    = 45,
 121                         .right_margin   = 114,
 122                         .upper_margin   = 33,
 123                         .lower_margin   = 11,
 124                         .hsync_len      = 1,
 125                         .vsync_len      = 1,
 126                 },
 127                 .bpp    = 16,
 128                 .pcr    = 0xFA208B80,
 129         },
 130 };
 131
 132 static struct imx_fb_platform_data mx25pdk_fb_pdata = {
 133         .mode           = mx25pdk_modes,
 134         .num_modes      = ARRAY_SIZE(mx25pdk_modes),
 135         .pwmr           = 0x00A903FF,
 136         .lscr1          = 0x00120300,
 137         .dmacr          = 0x00020010,
 138 };
 139
 140 static void __init mx25pdk_init(void)
 141 {
 142         mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
 143                         ARRAY_SIZE(mx25pdk_pads));
 144
 145         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 146         mxc_register_device(&mxc_usbh2, NULL);
 147         mxc_register_device(&mxc_nand_device, &mx25pdk_nand_board_info);
 148         mxc_register_device(&mx25_rtc_device, NULL);
 149         mxc_register_device(&mx25_fb_device, &mx25pdk_fb_pdata);
 150
 151         mx25pdk_fec_reset();
 152         mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
 153 }
 154
 155 static void __init mx25pdk_timer_init(void)
 156 {
 157         mx25_clocks_init();
 158 }
 159
 160 static struct sys_timer mx25pdk_timer = {
 161         .init   = mx25pdk_timer_init,
 162 };
 163
 164 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
 165         /* Maintainer: Freescale Semiconductor, Inc. */
 166         .phys_io        = MX25_AIPS1_BASE_ADDR,
 167         .io_pg_offst    = ((MX25_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 168         .boot_params    = MX25_PHYS_OFFSET + 0x100,
 169         .map_io         = mx25_map_io,
 170         .init_irq       = mx25_init_irq,
 171         .init_machine   = mx25pdk_init,
 172         .timer          = &mx25pdk_timer,
 173 MACHINE_END
 174