arch/arm/mach-orion5x/dns323-setup.c

   1 /*
   2  * arch/arm/mach-orion5x/dns323-setup.c
   3  *
   4  * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/pci.h>
  17 #include <linux/irq.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/mv643xx_eth.h>
  20 #include <linux/leds.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/input.h>
  23 #include <linux/i2c.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/gpio.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/pci.h>
  28 #include <mach/orion5x.h>
  29 #include "common.h"
  30 #include "mpp.h"
  31
  32 #define DNS323_GPIO_LED_RIGHT_AMBER     1
  33 #define DNS323_GPIO_LED_LEFT_AMBER      2
  34 #define DNS323_GPIO_LED_POWER           5
  35 #define DNS323_GPIO_OVERTEMP            6
  36 #define DNS323_GPIO_RTC                 7
  37 #define DNS323_GPIO_POWER_OFF           8
  38 #define DNS323_GPIO_KEY_POWER           9
  39 #define DNS323_GPIO_KEY_RESET           10
  40
  41 /****************************************************************************
  42  * PCI setup
  43  */
  44
  45 static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  46 {
  47         int irq;
  48
  49         /*
  50          * Check for devices with hard-wired IRQs.
  51          */
  52         irq = orion5x_pci_map_irq(dev, slot, pin);
  53         if (irq != -1)
  54                 return irq;
  55
  56         return -1;
  57 }
  58
  59 static struct hw_pci dns323_pci __initdata = {
  60         .nr_controllers = 2,
  61         .swizzle        = pci_std_swizzle,
  62         .setup          = orion5x_pci_sys_setup,
  63         .scan           = orion5x_pci_sys_scan_bus,
  64         .map_irq        = dns323_pci_map_irq,
  65 };
  66
  67 static int __init dns323_pci_init(void)
  68 {
  69         if (machine_is_dns323())
  70                 pci_common_init(&dns323_pci);
  71
  72         return 0;
  73 }
  74
  75 subsys_initcall(dns323_pci_init);
  76
  77 /****************************************************************************
  78  * Ethernet
  79  */
  80
  81 static struct mv643xx_eth_platform_data dns323_eth_data = {
  82         .phy_addr = MV643XX_ETH_PHY_ADDR(8),
  83 };
  84
  85 /****************************************************************************
  86  * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
  87  *
  88  * Layout as used by D-Link:
  89  *  0x00000000-0x00010000 : "MTD1"
  90  *  0x00010000-0x00020000 : "MTD2"
  91  *  0x00020000-0x001a0000 : "Linux Kernel"
  92  *  0x001a0000-0x007d0000 : "File System"
  93  *  0x007d0000-0x00800000 : "u-boot"
  94  */
  95
  96 #define DNS323_NOR_BOOT_BASE 0xf4000000
  97 #define DNS323_NOR_BOOT_SIZE SZ_8M
  98
  99 static struct mtd_partition dns323_partitions[] = {
 100         {
 101                 .name   = "MTD1",
 102                 .size   = 0x00010000,
 103                 .offset = 0,
 104         }, {
 105                 .name   = "MTD2",
 106                 .size   = 0x00010000,
 107                 .offset = 0x00010000,
 108         }, {
 109                 .name   = "Linux Kernel",
 110                 .size   = 0x00180000,
 111                 .offset = 0x00020000,
 112         }, {
 113                 .name   = "File System",
 114                 .size   = 0x00630000,
 115                 .offset = 0x001A0000,
 116         }, {
 117                 .name   = "u-boot",
 118                 .size   = 0x00030000,
 119                 .offset = 0x007d0000,
 120         },
 121 };
 122
 123 static struct physmap_flash_data dns323_nor_flash_data = {
 124         .width          = 1,
 125         .parts          = dns323_partitions,
 126         .nr_parts       = ARRAY_SIZE(dns323_partitions)
 127 };
 128
 129 static struct resource dns323_nor_flash_resource = {
 130         .flags          = IORESOURCE_MEM,
 131         .start          = DNS323_NOR_BOOT_BASE,
 132         .end            = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
 133 };
 134
 135 static struct platform_device dns323_nor_flash = {
 136         .name           = "physmap-flash",
 137         .id             = 0,
 138         .dev            = {
 139                 .platform_data  = &dns323_nor_flash_data,
 140         },
 141         .resource       = &dns323_nor_flash_resource,
 142         .num_resources  = 1,
 143 };
 144
 145 /****************************************************************************
 146  * GPIO LEDs (simple - doesn't use hardware blinking support)
 147  */
 148
 149 static struct gpio_led dns323_leds[] = {
 150         {
 151                 .name = "power:blue",
 152                 .gpio = DNS323_GPIO_LED_POWER,
 153                 .active_low = 1,
 154         }, {
 155                 .name = "right:amber",
 156                 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
 157                 .active_low = 1,
 158         }, {
 159                 .name = "left:amber",
 160                 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
 161                 .active_low = 1,
 162         },
 163 };
 164
 165 static struct gpio_led_platform_data dns323_led_data = {
 166         .num_leds       = ARRAY_SIZE(dns323_leds),
 167         .leds           = dns323_leds,
 168 };
 169
 170 static struct platform_device dns323_gpio_leds = {
 171         .name           = "leds-gpio",
 172         .id             = -1,
 173         .dev            = {
 174                 .platform_data  = &dns323_led_data,
 175         },
 176 };
 177
 178 /****************************************************************************
 179  * GPIO Attached Keys
 180  */
 181
 182 static struct gpio_keys_button dns323_buttons[] = {
 183         {
 184                 .code           = KEY_RESTART,
 185                 .gpio           = DNS323_GPIO_KEY_RESET,
 186                 .desc           = "Reset Button",
 187                 .active_low     = 1,
 188         }, {
 189                 .code           = KEY_POWER,
 190                 .gpio           = DNS323_GPIO_KEY_POWER,
 191                 .desc           = "Power Button",
 192                 .active_low     = 1,
 193         },
 194 };
 195
 196 static struct gpio_keys_platform_data dns323_button_data = {
 197         .buttons        = dns323_buttons,
 198         .nbuttons       = ARRAY_SIZE(dns323_buttons),
 199 };
 200
 201 static struct platform_device dns323_button_device = {
 202         .name           = "gpio-keys",
 203         .id             = -1,
 204         .num_resources  = 0,
 205         .dev            = {
 206                 .platform_data  = &dns323_button_data,
 207         },
 208 };
 209
 210 /****************************************************************************
 211  * General Setup
 212  */
 213 static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = {
 214         {  0, MPP_PCIE_RST_OUTn },
 215         {  1, MPP_GPIO },               /* right amber LED (sata ch0) */
 216         {  2, MPP_GPIO },               /* left amber LED (sata ch1) */
 217         {  3, MPP_UNUSED },
 218         {  4, MPP_GPIO },               /* power button LED */
 219         {  5, MPP_GPIO },               /* power button LED */
 220         {  6, MPP_GPIO },               /* GMT G751-2f overtemp */
 221         {  7, MPP_GPIO },               /* M41T80 nIRQ/OUT/SQW */
 222         {  8, MPP_GPIO },               /* triggers power off */
 223         {  9, MPP_GPIO },               /* power button switch */
 224         { 10, MPP_GPIO },               /* reset button switch */
 225         { 11, MPP_UNUSED },
 226         { 12, MPP_UNUSED },
 227         { 13, MPP_UNUSED },
 228         { 14, MPP_UNUSED },
 229         { 15, MPP_UNUSED },
 230         { 16, MPP_UNUSED },
 231         { 17, MPP_UNUSED },
 232         { 18, MPP_UNUSED },
 233         { 19, MPP_UNUSED },
 234         { -1 },
 235 };
 236
 237 /*
 238  * On the DNS-323 the following devices are attached via I2C:
 239  *
 240  *  i2c addr | chip        | description
 241  *  0x3e     | GMT G760Af  | fan speed PWM controller
 242  *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 243  *  0x68     | ST M41T80   | RTC w/ alarm
 244  */
 245 static struct i2c_board_info __initdata dns323_i2c_devices[] = {
 246         {
 247                 I2C_BOARD_INFO("g760a", 0x3e),
 248         }, {
 249                 I2C_BOARD_INFO("lm75", 0x48),
 250         }, {
 251                 I2C_BOARD_INFO("m41t80", 0x68),
 252         },
 253 };
 254
 255 /* DNS-323 specific power off method */
 256 static void dns323_power_off(void)
 257 {
 258         pr_info("%s: triggering power-off...\n", __func__);
 259         gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
 260 }
 261
 262 static void __init dns323_init(void)
 263 {
 264         /* Setup basic Orion functions. Need to be called early. */
 265         orion5x_init();
 266
 267         orion5x_mpp_conf(dns323_mpp_modes);
 268         writel(0, MPP_DEV_CTRL);                /* DEV_D[31:16] */
 269
 270         /*
 271          * Configure peripherals.
 272          */
 273         orion5x_ehci0_init();
 274         orion5x_eth_init(&dns323_eth_data);
 275         orion5x_i2c_init();
 276         orion5x_uart0_init();
 277
 278         /* setup flash mapping
 279          * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
 280          */
 281         orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
 282         platform_device_register(&dns323_nor_flash);
 283
 284         platform_device_register(&dns323_gpio_leds);
 285
 286         platform_device_register(&dns323_button_device);
 287
 288         i2c_register_board_info(0, dns323_i2c_devices,
 289                                 ARRAY_SIZE(dns323_i2c_devices));
 290
 291         /* register dns323 specific power-off method */
 292         if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 293             gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 294                 pr_err("DNS323: failed to setup power-off GPIO\n");
 295         pm_power_off = dns323_power_off;
 296 }
 297
 298 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
 299 MACHINE_START(DNS323, "D-Link DNS-323")
 300         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 301         .phys_io        = ORION5X_REGS_PHYS_BASE,
 302         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 303         .boot_params    = 0x00000100,
 304         .init_machine   = dns323_init,
 305         .map_io         = orion5x_map_io,
 306         .init_irq       = orion5x_init_irq,
 307         .timer          = &orion5x_timer,
 308         .fixup          = tag_fixup_mem32,
 309 MACHINE_END