release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/alchemy/devboards/pb1200/platform.c

   1 /*
   2  * Pb1200/DBAu1200 board platform device registration
   3  *
   4  * Copyright (C) 2008 MontaVista Software Inc. <source@mvista.com>
   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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include <linux/dma-mapping.h>
  22 #include <linux/init.h>
  23 #include <linux/leds.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/smc91x.h>
  26
  27 #include <asm/mach-au1x00/au1xxx.h>
  28 #include <asm/mach-au1x00/au1100_mmc.h>
  29 #include <asm/mach-db1x00/bcsr.h>
  30
  31 #include "../platform.h"
  32
  33 static int mmc_activity;
  34
  35 static void pb1200mmc0_set_power(void *mmc_host, int state)
  36 {
  37         if (state)
  38                 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR);
  39         else
  40                 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0);
  41
  42         msleep(1);
  43 }
  44
  45 static int pb1200mmc0_card_readonly(void *mmc_host)
  46 {
  47         return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0;
  48 }
  49
  50 static int pb1200mmc0_card_inserted(void *mmc_host)
  51 {
  52         return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0;
  53 }
  54
  55 static void pb1200_mmcled_set(struct led_classdev *led,
  56                         enum led_brightness brightness)
  57 {
  58         if (brightness != LED_OFF) {
  59                 if (++mmc_activity == 1)
  60                         bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
  61         } else {
  62                 if (--mmc_activity == 0)
  63                         bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
  64         }
  65 }
  66
  67 static struct led_classdev pb1200mmc_led = {
  68         .brightness_set = pb1200_mmcled_set,
  69 };
  70
  71 static void pb1200mmc1_set_power(void *mmc_host, int state)
  72 {
  73         if (state)
  74                 bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR);
  75         else
  76                 bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0);
  77
  78         msleep(1);
  79 }
  80
  81 static int pb1200mmc1_card_readonly(void *mmc_host)
  82 {
  83         return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD1WP) ? 1 : 0;
  84 }
  85
  86 static int pb1200mmc1_card_inserted(void *mmc_host)
  87 {
  88         return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) ? 1 : 0;
  89 }
  90
  91 const struct au1xmmc_platform_data au1xmmc_platdata[2] = {
  92         [0] = {
  93                 .set_power      = pb1200mmc0_set_power,
  94                 .card_inserted  = pb1200mmc0_card_inserted,
  95                 .card_readonly  = pb1200mmc0_card_readonly,
  96                 .cd_setup       = NULL,         /* use poll-timer in driver */
  97                 .led            = &pb1200mmc_led,
  98         },
  99         [1] = {
 100                 .set_power      = pb1200mmc1_set_power,
 101                 .card_inserted  = pb1200mmc1_card_inserted,
 102                 .card_readonly  = pb1200mmc1_card_readonly,
 103                 .cd_setup       = NULL,         /* use poll-timer in driver */
 104                 .led            = &pb1200mmc_led,
 105         },
 106 };
 107
 108 static struct resource ide_resources[] = {
 109         [0] = {
 110                 .start  = IDE_PHYS_ADDR,
 111                 .end    = IDE_PHYS_ADDR + IDE_PHYS_LEN - 1,
 112                 .flags  = IORESOURCE_MEM
 113         },
 114         [1] = {
 115                 .start  = IDE_INT,
 116                 .end    = IDE_INT,
 117                 .flags  = IORESOURCE_IRQ
 118         }
 119 };
 120
 121 static u64 ide_dmamask = DMA_BIT_MASK(32);
 122
 123 static struct platform_device ide_device = {
 124         .name           = "au1200-ide",
 125         .id             = 0,
 126         .dev = {
 127                 .dma_mask               = &ide_dmamask,
 128                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 129         },
 130         .num_resources  = ARRAY_SIZE(ide_resources),
 131         .resource       = ide_resources
 132 };
 133
 134 static struct smc91x_platdata smc_data = {
 135         .flags  = SMC91X_NOWAIT | SMC91X_USE_16BIT,
 136         .leda   = RPC_LED_100_10,
 137         .ledb   = RPC_LED_TX_RX,
 138 };
 139
 140 static struct resource smc91c111_resources[] = {
 141         [0] = {
 142                 .name   = "smc91x-regs",
 143                 .start  = SMC91C111_PHYS_ADDR,
 144                 .end    = SMC91C111_PHYS_ADDR + 0xf,
 145                 .flags  = IORESOURCE_MEM
 146         },
 147         [1] = {
 148                 .start  = SMC91C111_INT,
 149                 .end    = SMC91C111_INT,
 150                 .flags  = IORESOURCE_IRQ
 151         },
 152 };
 153
 154 static struct platform_device smc91c111_device = {
 155         .dev    = {
 156                 .platform_data  = &smc_data,
 157         },
 158         .name           = "smc91x",
 159         .id             = -1,
 160         .num_resources  = ARRAY_SIZE(smc91c111_resources),
 161         .resource       = smc91c111_resources
 162 };
 163
 164 static struct platform_device *board_platform_devices[] __initdata = {
 165         &ide_device,
 166         &smc91c111_device
 167 };
 168
 169 static int __init board_register_devices(void)
 170 {
 171         int swapped;
 172
 173         db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR,
 174                                     PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
 175                                     PCMCIA_MEM_PHYS_ADDR,
 176                                     PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
 177                                     PCMCIA_IO_PHYS_ADDR,
 178                                     PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
 179                                     PB1200_PC0_INT,
 180                                     PB1200_PC0_INSERT_INT,
 181                                     /*PB1200_PC0_STSCHG_INT*/0,
 182                                     PB1200_PC0_EJECT_INT,
 183                                     0);
 184
 185         db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
 186                                     PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
 187                                     PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
 188                                     PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
 189                                     PCMCIA_IO_PHYS_ADDR   + 0x008000000,
 190                                     PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
 191                                     PB1200_PC1_INT,
 192                                     PB1200_PC1_INSERT_INT,
 193                                     /*PB1200_PC1_STSCHG_INT*/0,
 194                                     PB1200_PC1_EJECT_INT,
 195                                     1);
 196
 197         swapped = bcsr_read(BCSR_STATUS) &  BCSR_STATUS_DB1200_SWAPBOOT;
 198         db1x_register_norflash(128 * 1024 * 1024, 2, swapped);
 199
 200         return platform_add_devices(board_platform_devices,
 201                                     ARRAY_SIZE(board_platform_devices));
 202 }
 203 device_initcall(board_register_devices);