arch/arm/mach-mx2/mx27ads.c

   1 /*
   2  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   3  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
   4  *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <linux/platform_device.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/map.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <mach/common.h>
  27 #include <mach/hardware.h>
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/time.h>
  31 #include <asm/mach/map.h>
  32 #include <mach/gpio.h>
  33 #include <mach/imx-uart.h>
  34 #include <mach/iomux.h>
  35 #include <mach/board-mx27ads.h>
  36 #include <mach/mxc_nand.h>
  37
  38 #include "devices.h"
  39
  40 static unsigned int mx27ads_pins[] = {
  41         /* UART0 */
  42         PE12_PF_UART1_TXD,
  43         PE13_PF_UART1_RXD,
  44         PE14_PF_UART1_CTS,
  45         PE15_PF_UART1_RTS,
  46         /* UART1 */
  47         PE3_PF_UART2_CTS,
  48         PE4_PF_UART2_RTS,
  49         PE6_PF_UART2_TXD,
  50         PE7_PF_UART2_RXD,
  51         /* UART2 */
  52         PE8_PF_UART3_TXD,
  53         PE9_PF_UART3_RXD,
  54         PE10_PF_UART3_CTS,
  55         PE11_PF_UART3_RTS,
  56         /* UART3 */
  57         PB26_AF_UART4_RTS,
  58         PB28_AF_UART4_TXD,
  59         PB29_AF_UART4_CTS,
  60         PB31_AF_UART4_RXD,
  61         /* UART4 */
  62         PB18_AF_UART5_TXD,
  63         PB19_AF_UART5_RXD,
  64         PB20_AF_UART5_CTS,
  65         PB21_AF_UART5_RTS,
  66         /* UART5 */
  67         PB10_AF_UART6_TXD,
  68         PB12_AF_UART6_CTS,
  69         PB11_AF_UART6_RXD,
  70         PB13_AF_UART6_RTS,
  71         /* FEC */
  72         PD0_AIN_FEC_TXD0,
  73         PD1_AIN_FEC_TXD1,
  74         PD2_AIN_FEC_TXD2,
  75         PD3_AIN_FEC_TXD3,
  76         PD4_AOUT_FEC_RX_ER,
  77         PD5_AOUT_FEC_RXD1,
  78         PD6_AOUT_FEC_RXD2,
  79         PD7_AOUT_FEC_RXD3,
  80         PD8_AF_FEC_MDIO,
  81         PD9_AIN_FEC_MDC,
  82         PD10_AOUT_FEC_CRS,
  83         PD11_AOUT_FEC_TX_CLK,
  84         PD12_AOUT_FEC_RXD0,
  85         PD13_AOUT_FEC_RX_DV,
  86         PD14_AOUT_FEC_RX_CLK,
  87         PD15_AOUT_FEC_COL,
  88         PD16_AIN_FEC_TX_ER,
  89         PF23_AIN_FEC_TX_EN,
  90 };
  91
  92 static struct mxc_nand_platform_data mx27ads_nand_board_info = {
  93         .width = 1,
  94         .hw_ecc = 1,
  95 };
  96
  97 /* ADS's NOR flash */
  98 static struct physmap_flash_data mx27ads_flash_data = {
  99         .width = 2,
 100 };
 101
 102 static struct resource mx27ads_flash_resource = {
 103         .start = 0xc0000000,
 104         .end = 0xc0000000 + 0x02000000 - 1,
 105         .flags = IORESOURCE_MEM,
 106
 107 };
 108
 109 static struct platform_device mx27ads_nor_mtd_device = {
 110         .name = "physmap-flash",
 111         .id = 0,
 112         .dev = {
 113                 .platform_data = &mx27ads_flash_data,
 114         },
 115         .num_resources = 1,
 116         .resource = &mx27ads_flash_resource,
 117 };
 118
 119 static struct platform_device *platform_devices[] __initdata = {
 120         &mx27ads_nor_mtd_device,
 121         &mxc_fec_device,
 122 };
 123
 124 static struct imxuart_platform_data uart_pdata[] = {
 125         {
 126                 .flags = IMXUART_HAVE_RTSCTS,
 127         }, {
 128                 .flags = IMXUART_HAVE_RTSCTS,
 129         }, {
 130                 .flags = IMXUART_HAVE_RTSCTS,
 131         }, {
 132                 .flags = IMXUART_HAVE_RTSCTS,
 133         }, {
 134                 .flags = IMXUART_HAVE_RTSCTS,
 135         }, {
 136                 .flags = IMXUART_HAVE_RTSCTS,
 137         },
 138 };
 139
 140 static void __init mx27ads_board_init(void)
 141 {
 142         mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins),
 143                         "mx27ads");
 144
 145         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
 146         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
 147         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
 148         mxc_register_device(&mxc_uart_device3, &uart_pdata[3]);
 149         mxc_register_device(&mxc_uart_device4, &uart_pdata[4]);
 150         mxc_register_device(&mxc_uart_device5, &uart_pdata[5]);
 151         mxc_register_device(&mxc_nand_device, &mx27ads_nand_board_info);
 152
 153         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 154 }
 155
 156 static void __init mx27ads_timer_init(void)
 157 {
 158         unsigned long fref = 26000000;
 159
 160         if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
 161                 fref = 27000000;
 162
 163         mx27_clocks_init(fref);
 164 }
 165
 166 static struct sys_timer mx27ads_timer = {
 167         .init   = mx27ads_timer_init,
 168 };
 169
 170 static struct map_desc mx27ads_io_desc[] __initdata = {
 171         {
 172                 .virtual = PBC_BASE_ADDRESS,
 173                 .pfn = __phys_to_pfn(CS4_BASE_ADDR),
 174                 .length = SZ_1M,
 175                 .type = MT_DEVICE,
 176         },
 177 };
 178
 179 static void __init mx27ads_map_io(void)
 180 {
 181         mx27_map_io();
 182         iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
 183 }
 184
 185 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
 186         /* maintainer: Freescale Semiconductor, Inc. */
 187         .phys_io        = AIPI_BASE_ADDR,
 188         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 189         .boot_params    = PHYS_OFFSET + 0x100,
 190         .map_io         = mx27ads_map_io,
 191         .init_irq       = mxc_init_irq,
 192         .init_machine   = mx27ads_board_init,
 193         .timer          = &mx27ads_timer,
 194 MACHINE_END
 195