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-mx1-mx2.h>
  35 #include <mach/board-mx27ads.h>
  36
  37 /* ADS's NOR flash */
  38 static struct physmap_flash_data mx27ads_flash_data = {
  39         .width = 2,
  40 };
  41
  42 static struct resource mx27ads_flash_resource = {
  43         .start = 0xc0000000,
  44         .end = 0xc0000000 + 0x02000000 - 1,
  45         .flags = IORESOURCE_MEM,
  46
  47 };
  48
  49 static struct platform_device mx27ads_nor_mtd_device = {
  50         .name = "physmap-flash",
  51         .id = 0,
  52         .dev = {
  53                 .platform_data = &mx27ads_flash_data,
  54         },
  55         .num_resources = 1,
  56         .resource = &mx27ads_flash_resource,
  57 };
  58
  59 static int mxc_uart0_pins[] = {
  60         PE12_PF_UART1_TXD,
  61         PE13_PF_UART1_RXD,
  62         PE14_PF_UART1_CTS,
  63         PE15_PF_UART1_RTS
  64 };
  65
  66 static int uart_mxc_port0_init(struct platform_device *pdev)
  67 {
  68         return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
  69                         ARRAY_SIZE(mxc_uart0_pins),
  70                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART0");
  71 }
  72
  73 static int uart_mxc_port0_exit(struct platform_device *pdev)
  74 {
  75         return mxc_gpio_setup_multiple_pins(mxc_uart0_pins,
  76                         ARRAY_SIZE(mxc_uart0_pins),
  77                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART0");
  78 }
  79
  80 static int mxc_uart1_pins[] = {
  81         PE3_PF_UART2_CTS,
  82         PE4_PF_UART2_RTS,
  83         PE6_PF_UART2_TXD,
  84         PE7_PF_UART2_RXD
  85 };
  86
  87 static int uart_mxc_port1_init(struct platform_device *pdev)
  88 {
  89         return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
  90                         ARRAY_SIZE(mxc_uart1_pins),
  91                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART1");
  92 }
  93
  94 static int uart_mxc_port1_exit(struct platform_device *pdev)
  95 {
  96         return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
  97                         ARRAY_SIZE(mxc_uart1_pins),
  98                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART1");
  99 }
 100
 101 static int mxc_uart2_pins[] = {
 102         PE8_PF_UART3_TXD,
 103         PE9_PF_UART3_RXD,
 104         PE10_PF_UART3_CTS,
 105         PE11_PF_UART3_RTS
 106 };
 107
 108 static int uart_mxc_port2_init(struct platform_device *pdev)
 109 {
 110         return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
 111                         ARRAY_SIZE(mxc_uart2_pins),
 112                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART2");
 113 }
 114
 115 static int uart_mxc_port2_exit(struct platform_device *pdev)
 116 {
 117         return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
 118                         ARRAY_SIZE(mxc_uart2_pins),
 119                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART2");
 120 }
 121
 122 static int mxc_uart3_pins[] = {
 123         PB26_AF_UART4_RTS,
 124         PB28_AF_UART4_TXD,
 125         PB29_AF_UART4_CTS,
 126         PB31_AF_UART4_RXD
 127 };
 128
 129 static int uart_mxc_port3_init(struct platform_device *pdev)
 130 {
 131         return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
 132                         ARRAY_SIZE(mxc_uart3_pins),
 133                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART3");
 134 }
 135
 136 static int uart_mxc_port3_exit(struct platform_device *pdev)
 137 {
 138         return mxc_gpio_setup_multiple_pins(mxc_uart3_pins,
 139                         ARRAY_SIZE(mxc_uart3_pins),
 140                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART3");
 141 }
 142
 143 static int mxc_uart4_pins[] = {
 144         PB18_AF_UART5_TXD,
 145         PB19_AF_UART5_RXD,
 146         PB20_AF_UART5_CTS,
 147         PB21_AF_UART5_RTS
 148 };
 149
 150 static int uart_mxc_port4_init(struct platform_device *pdev)
 151 {
 152         return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
 153                         ARRAY_SIZE(mxc_uart4_pins),
 154                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART4");
 155 }
 156
 157 static int uart_mxc_port4_exit(struct platform_device *pdev)
 158 {
 159         return mxc_gpio_setup_multiple_pins(mxc_uart4_pins,
 160                         ARRAY_SIZE(mxc_uart4_pins),
 161                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART4");
 162 }
 163
 164 static int mxc_uart5_pins[] = {
 165         PB10_AF_UART6_TXD,
 166         PB12_AF_UART6_CTS,
 167         PB11_AF_UART6_RXD,
 168         PB13_AF_UART6_RTS
 169 };
 170
 171 static int uart_mxc_port5_init(struct platform_device *pdev)
 172 {
 173         return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
 174                         ARRAY_SIZE(mxc_uart5_pins),
 175                         MXC_GPIO_ALLOC_MODE_NORMAL, "UART5");
 176 }
 177
 178 static int uart_mxc_port5_exit(struct platform_device *pdev)
 179 {
 180         return mxc_gpio_setup_multiple_pins(mxc_uart5_pins,
 181                         ARRAY_SIZE(mxc_uart5_pins),
 182                         MXC_GPIO_ALLOC_MODE_RELEASE, "UART5");
 183 }
 184
 185 static struct platform_device *platform_devices[] __initdata = {
 186         &mx27ads_nor_mtd_device,
 187 };
 188
 189 static int mxc_fec_pins[] = {
 190         PD0_AIN_FEC_TXD0,
 191         PD1_AIN_FEC_TXD1,
 192         PD2_AIN_FEC_TXD2,
 193         PD3_AIN_FEC_TXD3,
 194         PD4_AOUT_FEC_RX_ER,
 195         PD5_AOUT_FEC_RXD1,
 196         PD6_AOUT_FEC_RXD2,
 197         PD7_AOUT_FEC_RXD3,
 198         PD8_AF_FEC_MDIO,
 199         PD9_AIN_FEC_MDC,
 200         PD10_AOUT_FEC_CRS,
 201         PD11_AOUT_FEC_TX_CLK,
 202         PD12_AOUT_FEC_RXD0,
 203         PD13_AOUT_FEC_RX_DV,
 204         PD14_AOUT_FEC_CLR,
 205         PD15_AOUT_FEC_COL,
 206         PD16_AIN_FEC_TX_ER,
 207         PF23_AIN_FEC_TX_EN
 208 };
 209
 210 static void gpio_fec_active(void)
 211 {
 212         mxc_gpio_setup_multiple_pins(mxc_fec_pins,
 213                         ARRAY_SIZE(mxc_fec_pins),
 214                         MXC_GPIO_ALLOC_MODE_NORMAL, "FEC");
 215 }
 216
 217 static void gpio_fec_inactive(void)
 218 {
 219         mxc_gpio_setup_multiple_pins(mxc_fec_pins,
 220                         ARRAY_SIZE(mxc_fec_pins),
 221                         MXC_GPIO_ALLOC_MODE_RELEASE, "FEC");
 222 }
 223
 224 static struct imxuart_platform_data uart_pdata[] = {
 225         {
 226                 .init = uart_mxc_port0_init,
 227                 .exit = uart_mxc_port0_exit,
 228                 .flags = IMXUART_HAVE_RTSCTS,
 229         }, {
 230                 .init = uart_mxc_port1_init,
 231                 .exit = uart_mxc_port1_exit,
 232                 .flags = IMXUART_HAVE_RTSCTS,
 233         }, {
 234                 .init = uart_mxc_port2_init,
 235                 .exit = uart_mxc_port2_exit,
 236                 .flags = IMXUART_HAVE_RTSCTS,
 237         }, {
 238                 .init = uart_mxc_port3_init,
 239                 .exit = uart_mxc_port3_exit,
 240                 .flags = IMXUART_HAVE_RTSCTS,
 241         }, {
 242                 .init = uart_mxc_port4_init,
 243                 .exit = uart_mxc_port4_exit,
 244                 .flags = IMXUART_HAVE_RTSCTS,
 245         }, {
 246                 .init = uart_mxc_port5_init,
 247                 .exit = uart_mxc_port5_exit,
 248                 .flags = IMXUART_HAVE_RTSCTS,
 249         },
 250 };
 251
 252 static void __init mx27ads_board_init(void)
 253 {
 254         int i;
 255
 256         gpio_fec_active();
 257
 258         for (i = 0; i < 6; i++)
 259                 imx_init_uart(i, &uart_pdata[i]);
 260
 261         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 262 }
 263
 264 static void __init mx27ads_timer_init(void)
 265 {
 266         unsigned long fref = 26000000;
 267
 268         if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0)
 269                 fref = 27000000;
 270
 271         mxc_clocks_init(fref);
 272         mxc_timer_init("gpt_clk.0");
 273 }
 274
 275 struct sys_timer mx27ads_timer = {
 276         .init   = mx27ads_timer_init,
 277 };
 278
 279 static struct map_desc mx27ads_io_desc[] __initdata = {
 280         {
 281                 .virtual = PBC_BASE_ADDRESS,
 282                 .pfn = __phys_to_pfn(CS4_BASE_ADDR),
 283                 .length = SZ_1M,
 284                 .type = MT_DEVICE,
 285         },
 286 };
 287
 288 void __init mx27ads_map_io(void)
 289 {
 290         mxc_map_io();
 291         iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc));
 292 }
 293
 294 MACHINE_START(MX27ADS, "Freescale i.MX27ADS")
 295         /* maintainer: Freescale Semiconductor, Inc. */
 296         .phys_io        = AIPI_BASE_ADDR,
 297         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 298         .boot_params    = PHYS_OFFSET + 0x100,
 299         .map_io         = mx27ads_map_io,
 300         .init_irq       = mxc_init_irq,
 301         .init_machine   = mx27ads_board_init,
 302         .timer          = &mx27ads_timer,
 303 MACHINE_END
 304