arch/arm/mach-orion5x/mss2-setup.c

   1 /*
   2  * Maxtor Shared Storage II Board Setup
   3  *
   4  * Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the License, or (at your option) any later version.
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/pci.h>
  16 #include <linux/irq.h>
  17 #include <linux/mtd/physmap.h>
  18 #include <linux/mv643xx_eth.h>
  19 #include <linux/leds.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/input.h>
  22 #include <linux/i2c.h>
  23 #include <linux/ata_platform.h>
  24 #include <linux/gpio.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/pci.h>
  28 #include <mach/orion5x.h>
  29 #include <mach/bridge-regs.h>
  30 #include "common.h"
  31 #include "mpp.h"
  32
  33 #define MSS2_NOR_BOOT_BASE      0xff800000
  34 #define MSS2_NOR_BOOT_SIZE      SZ_256K
  35
  36 /*****************************************************************************
  37  * Maxtor Shared Storage II Info
  38  ****************************************************************************/
  39
  40 /*
  41  * Maxtor Shared Storage II hardware :
  42  * - Marvell 88F5182-A2 C500
  43  * - Marvell 88E1111 Gigabit Ethernet PHY
  44  * - RTC M41T81 (@0x68) on I2C bus
  45  * - 256KB NOR flash
  46  * - 64MB of RAM
  47  */
  48
  49 /*****************************************************************************
  50  * 256KB NOR Flash on BOOT Device
  51  ****************************************************************************/
  52
  53 static struct physmap_flash_data mss2_nor_flash_data = {
  54         .width          = 1,
  55 };
  56
  57 static struct resource mss2_nor_flash_resource = {
  58         .flags          = IORESOURCE_MEM,
  59         .start          = MSS2_NOR_BOOT_BASE,
  60         .end            = MSS2_NOR_BOOT_BASE + MSS2_NOR_BOOT_SIZE - 1,
  61 };
  62
  63 static struct platform_device mss2_nor_flash = {
  64         .name           = "physmap-flash",
  65         .id             = 0,
  66         .dev            = {
  67                 .platform_data  = &mss2_nor_flash_data,
  68         },
  69         .resource       = &mss2_nor_flash_resource,
  70         .num_resources  = 1,
  71 };
  72
  73 /****************************************************************************
  74  * PCI setup
  75  ****************************************************************************/
  76 static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  77 {
  78         int irq;
  79
  80         /*
  81          * Check for devices with hard-wired IRQs.
  82          */
  83         irq = orion5x_pci_map_irq(dev, slot, pin);
  84         if (irq != -1)
  85                 return irq;
  86
  87         return -1;
  88 }
  89
  90 static struct hw_pci mss2_pci __initdata = {
  91         .nr_controllers = 2,
  92         .setup          = orion5x_pci_sys_setup,
  93         .scan           = orion5x_pci_sys_scan_bus,
  94         .map_irq        = mss2_pci_map_irq,
  95 };
  96
  97 static int __init mss2_pci_init(void)
  98 {
  99         if (machine_is_mss2())
 100                 pci_common_init(&mss2_pci);
 101
 102         return 0;
 103 }
 104 subsys_initcall(mss2_pci_init);
 105
 106
 107 /*****************************************************************************
 108  * Ethernet
 109  ****************************************************************************/
 110
 111 static struct mv643xx_eth_platform_data mss2_eth_data = {
 112         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
 113 };
 114
 115 /*****************************************************************************
 116  * SATA
 117  ****************************************************************************/
 118
 119 static struct mv_sata_platform_data mss2_sata_data = {
 120         .n_ports        = 2,
 121 };
 122
 123 /*****************************************************************************
 124  * GPIO buttons
 125  ****************************************************************************/
 126
 127 #define MSS2_GPIO_KEY_RESET     12
 128 #define MSS2_GPIO_KEY_POWER     11
 129
 130 static struct gpio_keys_button mss2_buttons[] = {
 131         {
 132                 .code           = KEY_POWER,
 133                 .gpio           = MSS2_GPIO_KEY_POWER,
 134                 .desc           = "Power",
 135                 .active_low     = 1,
 136         }, {
 137                 .code           = KEY_RESTART,
 138                 .gpio           = MSS2_GPIO_KEY_RESET,
 139                 .desc           = "Reset",
 140                 .active_low     = 1,
 141         },
 142 };
 143
 144 static struct gpio_keys_platform_data mss2_button_data = {
 145         .buttons        = mss2_buttons,
 146         .nbuttons       = ARRAY_SIZE(mss2_buttons),
 147 };
 148
 149 static struct platform_device mss2_button_device = {
 150         .name           = "gpio-keys",
 151         .id             = -1,
 152         .dev            = {
 153                 .platform_data  = &mss2_button_data,
 154         },
 155 };
 156
 157 /*****************************************************************************
 158  * RTC m41t81 on I2C bus
 159  ****************************************************************************/
 160
 161 #define MSS2_GPIO_RTC_IRQ       3
 162
 163 static struct i2c_board_info __initdata mss2_i2c_rtc = {
 164         I2C_BOARD_INFO("m41t81", 0x68),
 165 };
 166
 167 /*****************************************************************************
 168  * MSS2 power off method
 169  ****************************************************************************/
 170 /*
 171  * On the Maxtor Shared Storage II, the shutdown process is the following :
 172  * - Userland modifies U-boot env to tell U-boot to go idle at next boot
 173  * - The board reboots
 174  * - U-boot starts and go into an idle mode until the user press "power"
 175  */
 176 static void mss2_power_off(void)
 177 {
 178         u32 reg;
 179
 180         /*
 181          * Enable and issue soft reset
 182          */
 183         reg = readl(RSTOUTn_MASK);
 184         reg |= 1 << 2;
 185         writel(reg, RSTOUTn_MASK);
 186
 187         reg = readl(CPU_SOFT_RESET);
 188         reg |= 1;
 189         writel(reg, CPU_SOFT_RESET);
 190 }
 191
 192 /****************************************************************************
 193  * General Setup
 194  ****************************************************************************/
 195 static unsigned int mss2_mpp_modes[] __initdata = {
 196         MPP0_GPIO,              /* Power LED */
 197         MPP1_GPIO,              /* Error LED */
 198         MPP2_UNUSED,
 199         MPP3_GPIO,              /* RTC interrupt */
 200         MPP4_GPIO,              /* HDD ind. (Single/Dual)*/
 201         MPP5_GPIO,              /* HD0 5V control */
 202         MPP6_GPIO,              /* HD0 12V control */
 203         MPP7_GPIO,              /* HD1 5V control */
 204         MPP8_GPIO,              /* HD1 12V control */
 205         MPP9_UNUSED,
 206         MPP10_GPIO,             /* Fan control */
 207         MPP11_GPIO,             /* Power button */
 208         MPP12_GPIO,             /* Reset button */
 209         MPP13_UNUSED,
 210         MPP14_SATA_LED,         /* SATA 0 active */
 211         MPP15_SATA_LED,         /* SATA 1 active */
 212         MPP16_UNUSED,
 213         MPP17_UNUSED,
 214         MPP18_UNUSED,
 215         MPP19_UNUSED,
 216         0,
 217 };
 218
 219 static void __init mss2_init(void)
 220 {
 221         /* Setup basic Orion functions. Need to be called early. */
 222         orion5x_init();
 223
 224         orion5x_mpp_conf(mss2_mpp_modes);
 225
 226         /*
 227          * MPP[20] Unused
 228          * MPP[21] PCI clock
 229          * MPP[22] USB 0 over current
 230          * MPP[23] USB 1 over current
 231          */
 232
 233         /*
 234          * Configure peripherals.
 235          */
 236         orion5x_ehci0_init();
 237         orion5x_ehci1_init();
 238         orion5x_eth_init(&mss2_eth_data);
 239         orion5x_i2c_init();
 240         orion5x_sata_init(&mss2_sata_data);
 241         orion5x_uart0_init();
 242         orion5x_xor_init();
 243
 244         orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE);
 245         platform_device_register(&mss2_nor_flash);
 246
 247         platform_device_register(&mss2_button_device);
 248
 249         if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) {
 250                 if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0)
 251                         mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ);
 252                 else
 253                         gpio_free(MSS2_GPIO_RTC_IRQ);
 254         }
 255         i2c_register_board_info(0, &mss2_i2c_rtc, 1);
 256
 257         /* register mss2 specific power-off method */
 258         pm_power_off = mss2_power_off;
 259 }
 260
 261 MACHINE_START(MSS2, "Maxtor Shared Storage II")
 262         /* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
 263         .atag_offset    = 0x100,
 264         .init_machine   = mss2_init,
 265         .map_io         = orion5x_map_io,
 266         .init_early     = orion5x_init_early,
 267         .init_irq       = orion5x_init_irq,
 268         .init_time      = orion5x_timer_init,
 269         .fixup          = tag_fixup_mem32,
 270         .restart        = orion5x_restart,
 271 MACHINE_END