arch/arm/mach-mx3/armadillo5x0.c

   1 /*
   2  * armadillo5x0.c
   3  *
   4  * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
   5  * updates in http://alberdroid.blogspot.com/
   6  *
   7  * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
   8  * Based on mx31ads.c and pcm037.c Great Work!
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  23  * MA 02110-1301, USA.
  24  */
  25
  26 #include <linux/types.h>
  27 #include <linux/init.h>
  28 #include <linux/clk.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/gpio.h>
  31 #include <linux/smsc911x.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/irq.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/time.h>
  39 #include <asm/memory.h>
  40 #include <asm/mach/map.h>
  41
  42 #include <mach/common.h>
  43 #include <mach/imx-uart.h>
  44 #include <mach/iomux-mx3.h>
  45 #include <mach/board-armadillo5x0.h>
  46 #include <mach/mmc.h>
  47 #include <mach/ipu.h>
  48 #include <mach/mx3fb.h>
  49
  50 #include "devices.h"
  51
  52 static int armadillo5x0_pins[] = {
  53         /* UART1 */
  54         MX31_PIN_CTS1__CTS1,
  55         MX31_PIN_RTS1__RTS1,
  56         MX31_PIN_TXD1__TXD1,
  57         MX31_PIN_RXD1__RXD1,
  58         /* UART2 */
  59         MX31_PIN_CTS2__CTS2,
  60         MX31_PIN_RTS2__RTS2,
  61         MX31_PIN_TXD2__TXD2,
  62         MX31_PIN_RXD2__RXD2,
  63         /* LAN9118_IRQ */
  64         IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
  65         /* SDHC1 */
  66         MX31_PIN_SD1_DATA3__SD1_DATA3,
  67         MX31_PIN_SD1_DATA2__SD1_DATA2,
  68         MX31_PIN_SD1_DATA1__SD1_DATA1,
  69         MX31_PIN_SD1_DATA0__SD1_DATA0,
  70         MX31_PIN_SD1_CLK__SD1_CLK,
  71         MX31_PIN_SD1_CMD__SD1_CMD,
  72         /* Framebuffer */
  73         MX31_PIN_LD0__LD0,
  74         MX31_PIN_LD1__LD1,
  75         MX31_PIN_LD2__LD2,
  76         MX31_PIN_LD3__LD3,
  77         MX31_PIN_LD4__LD4,
  78         MX31_PIN_LD5__LD5,
  79         MX31_PIN_LD6__LD6,
  80         MX31_PIN_LD7__LD7,
  81         MX31_PIN_LD8__LD8,
  82         MX31_PIN_LD9__LD9,
  83         MX31_PIN_LD10__LD10,
  84         MX31_PIN_LD11__LD11,
  85         MX31_PIN_LD12__LD12,
  86         MX31_PIN_LD13__LD13,
  87         MX31_PIN_LD14__LD14,
  88         MX31_PIN_LD15__LD15,
  89         MX31_PIN_LD16__LD16,
  90         MX31_PIN_LD17__LD17,
  91         MX31_PIN_VSYNC3__VSYNC3,
  92         MX31_PIN_HSYNC__HSYNC,
  93         MX31_PIN_FPSHIFT__FPSHIFT,
  94         MX31_PIN_DRDY0__DRDY0,
  95         IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
  96
  97 };
  98
  99 /*
 100  * FB support
 101  */
 102 static const struct fb_videomode fb_modedb[] = {
 103         {       /* 640x480 @ 60 Hz */
 104                 .name           = "CRT-VGA",
 105                 .refresh        = 60,
 106                 .xres           = 640,
 107                 .yres           = 480,
 108                 .pixclock       = 39721,
 109                 .left_margin    = 35,
 110                 .right_margin   = 115,
 111                 .upper_margin   = 43,
 112                 .lower_margin   = 1,
 113                 .hsync_len      = 10,
 114                 .vsync_len      = 1,
 115                 .sync           = FB_SYNC_OE_ACT_HIGH,
 116                 .vmode          = FB_VMODE_NONINTERLACED,
 117                 .flag           = 0,
 118         }, {/* 800x600 @ 56 Hz */
 119                 .name           = "CRT-SVGA",
 120                 .refresh        = 56,
 121                 .xres           = 800,
 122                 .yres           = 600,
 123                 .pixclock       = 30000,
 124                 .left_margin    = 30,
 125                 .right_margin   = 108,
 126                 .upper_margin   = 13,
 127                 .lower_margin   = 10,
 128                 .hsync_len      = 10,
 129                 .vsync_len      = 1,
 130                 .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
 131                                   FB_SYNC_VERT_HIGH_ACT,
 132                 .vmode          = FB_VMODE_NONINTERLACED,
 133                 .flag           = 0,
 134         },
 135 };
 136
 137 static struct ipu_platform_data mx3_ipu_data = {
 138         .irq_base = MXC_IPU_IRQ_START,
 139 };
 140
 141 static struct mx3fb_platform_data mx3fb_pdata = {
 142         .dma_dev        = &mx3_ipu.dev,
 143         .name           = "CRT-VGA",
 144         .mode           = fb_modedb,
 145         .num_modes      = ARRAY_SIZE(fb_modedb),
 146 };
 147
 148 /*
 149  * SDHC 1
 150  * MMC support
 151  */
 152 static int armadillo5x0_sdhc1_get_ro(struct device *dev)
 153 {
 154         return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 155 }
 156
 157 static int armadillo5x0_sdhc1_init(struct device *dev,
 158                                    irq_handler_t detect_irq, void *data)
 159 {
 160         int ret;
 161         int gpio_det, gpio_wp;
 162
 163         gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
 164         gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
 165
 166         ret = gpio_request(gpio_det, "sdhc-card-detect");
 167         if (ret)
 168                 return ret;
 169
 170         gpio_direction_input(gpio_det);
 171
 172         ret = gpio_request(gpio_wp, "sdhc-write-protect");
 173         if (ret)
 174                 goto err_gpio_free;
 175
 176         gpio_direction_input(gpio_wp);
 177
 178         /* When supported the trigger type have to be BOTH */
 179         ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
 180                           IRQF_DISABLED | IRQF_TRIGGER_FALLING,
 181                           "sdhc-detect", data);
 182
 183         if (ret)
 184                 goto err_gpio_free_2;
 185
 186         return 0;
 187
 188 err_gpio_free_2:
 189         gpio_free(gpio_wp);
 190
 191 err_gpio_free:
 192         gpio_free(gpio_det);
 193
 194         return ret;
 195
 196 }
 197
 198 static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
 199 {
 200         free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
 201         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
 202         gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
 203 }
 204
 205 static struct imxmmc_platform_data sdhc_pdata = {
 206         .get_ro = armadillo5x0_sdhc1_get_ro,
 207         .init = armadillo5x0_sdhc1_init,
 208         .exit = armadillo5x0_sdhc1_exit,
 209 };
 210
 211 /*
 212  * SMSC 9118
 213  * Network support
 214  */
 215 static struct resource armadillo5x0_smc911x_resources[] = {
 216         {
 217                 .start  = CS3_BASE_ADDR,
 218                 .end    = CS3_BASE_ADDR + SZ_32M - 1,
 219                 .flags  = IORESOURCE_MEM,
 220         }, {
 221                 .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 222                 .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
 223                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 224         },
 225 };
 226
 227 static struct smsc911x_platform_config smsc911x_info = {
 228         .flags          = SMSC911X_USE_32BIT,
 229         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 230         .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
 231 };
 232
 233 static struct platform_device armadillo5x0_smc911x_device = {
 234         .name           = "smsc911x",
 235         .id             = -1,
 236         .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
 237         .resource       = armadillo5x0_smc911x_resources,
 238         .dev            = {
 239                 .platform_data = &smsc911x_info,
 240         },
 241 };
 242
 243 /* UART device data */
 244 static struct imxuart_platform_data uart_pdata = {
 245         .flags = IMXUART_HAVE_RTSCTS,
 246 };
 247
 248 static struct platform_device *devices[] __initdata = {
 249         &armadillo5x0_smc911x_device,
 250 };
 251
 252 /*
 253  * Perform board specific initializations
 254  */
 255 static void __init armadillo5x0_init(void)
 256 {
 257         mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
 258                         ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
 259
 260         platform_add_devices(devices, ARRAY_SIZE(devices));
 261
 262         /* Register UART */
 263         mxc_register_device(&mxc_uart_device0, &uart_pdata);
 264         mxc_register_device(&mxc_uart_device1, &uart_pdata);
 265
 266         /* SMSC9118 IRQ pin */
 267         gpio_direction_input(MX31_PIN_GPIO1_0);
 268
 269         /* Register SDHC */
 270         mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
 271
 272         /* Register FB */
 273         mxc_register_device(&mx3_ipu, &mx3_ipu_data);
 274         mxc_register_device(&mx3_fb, &mx3fb_pdata);
 275 }
 276
 277 static void __init armadillo5x0_timer_init(void)
 278 {
 279         mx31_clocks_init(26000000);
 280 }
 281
 282 static struct sys_timer armadillo5x0_timer = {
 283         .init   = armadillo5x0_timer_init,
 284 };
 285
 286 MACHINE_START(ARMADILLO5X0, "Armadillo-500")
 287         /* Maintainer: Alberto Panizzo  */
 288         .phys_io        = AIPS1_BASE_ADDR,
 289         .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
 290         .boot_params    = PHYS_OFFSET + 0x00000100,
 291         .map_io         = mx31_map_io,
 292         .init_irq       = mxc_init_irq,
 293         .timer          = &armadillo5x0_timer,
 294         .init_machine   = armadillo5x0_init,
 295 MACHINE_END