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 <asm/arch/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         pr_err("%s: requested mapping for unknown device\n", __func__);
  57
  58         return -1;
  59 }
  60
  61 static struct hw_pci dns323_pci __initdata = {
  62         .nr_controllers = 2,
  63         .swizzle        = pci_std_swizzle,
  64         .setup          = orion5x_pci_sys_setup,
  65         .scan           = orion5x_pci_sys_scan_bus,
  66         .map_irq        = dns323_pci_map_irq,
  67 };
  68
  69 static int __init dns323_pci_init(void)
  70 {
  71         if (machine_is_dns323())
  72                 pci_common_init(&dns323_pci);
  73
  74         return 0;
  75 }
  76
  77 subsys_initcall(dns323_pci_init);
  78
  79 /****************************************************************************
  80  * Ethernet
  81  */
  82
  83 static struct mv643xx_eth_platform_data dns323_eth_data = {
  84         .phy_addr = 8,
  85         .force_phy_addr = 1,
  86 };
  87
  88 /****************************************************************************
  89  * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
  90  *
  91  * Layout as used by D-Link:
  92  *  0x00000000-0x00010000 : "MTD1"
  93  *  0x00010000-0x00020000 : "MTD2"
  94  *  0x00020000-0x001a0000 : "Linux Kernel"
  95  *  0x001a0000-0x007d0000 : "File System"
  96  *  0x007d0000-0x00800000 : "u-boot"
  97  */
  98
  99 #define DNS323_NOR_BOOT_BASE 0xf4000000
 100 #define DNS323_NOR_BOOT_SIZE SZ_8M
 101
 102 static struct mtd_partition dns323_partitions[] = {
 103         {
 104                 .name   = "MTD1",
 105                 .size   = 0x00010000,
 106                 .offset = 0,
 107         }, {
 108                 .name   = "MTD2",
 109                 .size   = 0x00010000,
 110                 .offset = 0x00010000,
 111         }, {
 112                 .name   = "Linux Kernel",
 113                 .size   = 0x00180000,
 114                 .offset = 0x00020000,
 115         }, {
 116                 .name   = "File System",
 117                 .size   = 0x00630000,
 118                 .offset = 0x001A0000,
 119         }, {
 120                 .name   = "u-boot",
 121                 .size   = 0x00030000,
 122                 .offset = 0x007d0000,
 123         },
 124 };
 125
 126 static struct physmap_flash_data dns323_nor_flash_data = {
 127         .width          = 1,
 128         .parts          = dns323_partitions,
 129         .nr_parts       = ARRAY_SIZE(dns323_partitions)
 130 };
 131
 132 static struct resource dns323_nor_flash_resource = {
 133         .flags          = IORESOURCE_MEM,
 134         .start          = DNS323_NOR_BOOT_BASE,
 135         .end            = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
 136 };
 137
 138 static struct platform_device dns323_nor_flash = {
 139         .name           = "physmap-flash",
 140         .id             = 0,
 141         .dev            = {
 142                 .platform_data  = &dns323_nor_flash_data,
 143         },
 144         .resource       = &dns323_nor_flash_resource,
 145         .num_resources  = 1,
 146 };
 147
 148 /****************************************************************************
 149  * GPIO LEDs (simple - doesn't use hardware blinking support)
 150  */
 151
 152 static struct gpio_led dns323_leds[] = {
 153         {
 154                 .name = "power:blue",
 155                 .gpio = DNS323_GPIO_LED_POWER,
 156                 .active_low = 1,
 157         }, {
 158                 .name = "right:amber",
 159                 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
 160                 .active_low = 1,
 161         }, {
 162                 .name = "left:amber",
 163                 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
 164                 .active_low = 1,
 165         },
 166 };
 167
 168 static struct gpio_led_platform_data dns323_led_data = {
 169         .num_leds       = ARRAY_SIZE(dns323_leds),
 170         .leds           = dns323_leds,
 171 };
 172
 173 static struct platform_device dns323_gpio_leds = {
 174         .name           = "leds-gpio",
 175         .id             = -1,
 176         .dev            = {
 177                 .platform_data  = &dns323_led_data,
 178         },
 179 };
 180
 181 /****************************************************************************
 182  * GPIO Attached Keys
 183  */
 184
 185 static struct gpio_keys_button dns323_buttons[] = {
 186         {
 187                 .code           = KEY_RESTART,
 188                 .gpio           = DNS323_GPIO_KEY_RESET,
 189                 .desc           = "Reset Button",
 190                 .active_low     = 1,
 191         }, {
 192                 .code           = KEY_POWER,
 193                 .gpio           = DNS323_GPIO_KEY_POWER,
 194                 .desc           = "Power Button",
 195                 .active_low     = 1,
 196         },
 197 };
 198
 199 static struct gpio_keys_platform_data dns323_button_data = {
 200         .buttons        = dns323_buttons,
 201         .nbuttons       = ARRAY_SIZE(dns323_buttons),
 202 };
 203
 204 static struct platform_device dns323_button_device = {
 205         .name           = "gpio-keys",
 206         .id             = -1,
 207         .num_resources  = 0,
 208         .dev            = {
 209                 .platform_data  = &dns323_button_data,
 210         },
 211 };
 212
 213 /****************************************************************************
 214  * General Setup
 215  */
 216 static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = {
 217         {  0, MPP_PCIE_RST_OUTn },
 218         {  1, MPP_GPIO },               /* right amber LED (sata ch0) */
 219         {  2, MPP_GPIO },               /* left amber LED (sata ch1) */
 220         {  3, MPP_UNUSED },
 221         {  4, MPP_GPIO },               /* power button LED */
 222         {  5, MPP_GPIO },               /* power button LED */
 223         {  6, MPP_GPIO },               /* GMT G751-2f overtemp */
 224         {  7, MPP_GPIO },               /* M41T80 nIRQ/OUT/SQW */
 225         {  8, MPP_GPIO },               /* triggers power off */
 226         {  9, MPP_GPIO },               /* power button switch */
 227         { 10, MPP_GPIO },               /* reset button switch */
 228         { 11, MPP_UNUSED },
 229         { 12, MPP_UNUSED },
 230         { 13, MPP_UNUSED },
 231         { 14, MPP_UNUSED },
 232         { 15, MPP_UNUSED },
 233         { 16, MPP_UNUSED },
 234         { 17, MPP_UNUSED },
 235         { 18, MPP_UNUSED },
 236         { 19, MPP_UNUSED },
 237         { -1 },
 238 };
 239
 240 /*
 241  * On the DNS-323 the following devices are attached via I2C:
 242  *
 243  *  i2c addr | chip        | description
 244  *  0x3e     | GMT G760Af  | fan speed PWM controller
 245  *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 246  *  0x68     | ST M41T80   | RTC w/ alarm
 247  */
 248 static struct i2c_board_info __initdata dns323_i2c_devices[] = {
 249         {
 250                 I2C_BOARD_INFO("g760a", 0x3e),
 251 #if 0
 252         /* this entry requires the new-style driver model lm75 driver,
 253          * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
 254         }, {
 255                 I2C_BOARD_INFO("g751", 0x48),
 256 #endif
 257         }, {
 258                 I2C_BOARD_INFO("m41t80", 0x68),
 259         },
 260 };
 261
 262 /* DNS-323 specific power off method */
 263 static void dns323_power_off(void)
 264 {
 265         pr_info("%s: triggering power-off...\n", __func__);
 266         gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
 267 }
 268
 269 static void __init dns323_init(void)
 270 {
 271         /* Setup basic Orion functions. Need to be called early. */
 272         orion5x_init();
 273
 274         orion5x_mpp_conf(dns323_mpp_modes);
 275         orion5x_write(MPP_DEV_CTRL, 0);         /* DEV_D[31:16] */
 276
 277         /*
 278          * Configure peripherals.
 279          */
 280         orion5x_ehci0_init();
 281         orion5x_eth_init(&dns323_eth_data);
 282         orion5x_i2c_init();
 283         orion5x_uart0_init();
 284
 285         /* setup flash mapping
 286          * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
 287          */
 288         orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
 289         platform_device_register(&dns323_nor_flash);
 290
 291         platform_device_register(&dns323_gpio_leds);
 292
 293         platform_device_register(&dns323_button_device);
 294
 295         i2c_register_board_info(0, dns323_i2c_devices,
 296                                 ARRAY_SIZE(dns323_i2c_devices));
 297
 298         /* register dns323 specific power-off method */
 299         if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 300             gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 301                 pr_err("DNS323: failed to setup power-off GPIO\n");
 302         pm_power_off = dns323_power_off;
 303 }
 304
 305 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
 306 MACHINE_START(DNS323, "D-Link DNS-323")
 307         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 308         .phys_io        = ORION5X_REGS_PHYS_BASE,
 309         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 310         .boot_params    = 0x00000100,
 311         .init_machine   = dns323_init,
 312         .map_io         = orion5x_map_io,
 313         .init_irq       = orion5x_init_irq,
 314         .timer          = &orion5x_timer,
 315         .fixup          = tag_fixup_mem32,
 316 MACHINE_END