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 31 #define DNS323_GPIO_LED_RIGHT_AMBER 1 32 #define DNS323_GPIO_LED_LEFT_AMBER 2 33 #define DNS323_GPIO_LED_POWER 5 34 #define DNS323_GPIO_OVERTEMP 6 35 #define DNS323_GPIO_RTC 7 36 #define DNS323_GPIO_POWER_OFF 8 37 #define DNS323_GPIO_KEY_POWER 9 38 #define DNS323_GPIO_KEY_RESET 10 39 40 /**************************************************************************** 41 * PCI setup 42 */ 43 44 static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) 45 { 46 int irq; 47 48 /* 49 * Check for devices with hard-wired IRQs. 50 */ 51 irq = orion5x_pci_map_irq(dev, slot, pin); 52 if (irq != -1) 53 return irq; 54 55 pr_err("%s: requested mapping for unknown device\n", __func__); 56 57 return -1; 58 } 59 60 static struct hw_pci dns323_pci __initdata = { 61 .nr_controllers = 2, 62 .swizzle = pci_std_swizzle, 63 .setup = orion5x_pci_sys_setup, 64 .scan = orion5x_pci_sys_scan_bus, 65 .map_irq = dns323_pci_map_irq, 66 }; 67 68 static int __init dns323_pci_init(void) 69 { 70 if (machine_is_dns323()) 71 pci_common_init(&dns323_pci); 72 73 return 0; 74 } 75 76 subsys_initcall(dns323_pci_init); 77 78 /**************************************************************************** 79 * Ethernet 80 */ 81 82 static struct mv643xx_eth_platform_data dns323_eth_data = { 83 .phy_addr = 8, 84 .force_phy_addr = 1, 85 }; 86 87 /**************************************************************************** 88 * 8MiB NOR flash (Spansion S29GL064M90TFIR4) 89 * 90 * Layout as used by D-Link: 91 * 0x00000000-0x00010000 : "MTD1" 92 * 0x00010000-0x00020000 : "MTD2" 93 * 0x00020000-0x001a0000 : "Linux Kernel" 94 * 0x001a0000-0x007d0000 : "File System" 95 * 0x007d0000-0x00800000 : "u-boot" 96 */ 97 98 #define DNS323_NOR_BOOT_BASE 0xf4000000 99 #define DNS323_NOR_BOOT_SIZE SZ_8M 100 101 static struct mtd_partition dns323_partitions[] = { 102 { 103 .name = "MTD1", 104 .size = 0x00010000, 105 .offset = 0, 106 }, { 107 .name = "MTD2", 108 .size = 0x00010000, 109 .offset = 0x00010000, 110 }, { 111 .name = "Linux Kernel", 112 .size = 0x00180000, 113 .offset = 0x00020000, 114 }, { 115 .name = "File System", 116 .size = 0x00630000, 117 .offset = 0x001A0000, 118 }, { 119 .name = "u-boot", 120 .size = 0x00030000, 121 .offset = 0x007d0000, 122 } 123 }; 124 125 static struct physmap_flash_data dns323_nor_flash_data = { 126 .width = 1, 127 .parts = dns323_partitions, 128 .nr_parts = ARRAY_SIZE(dns323_partitions) 129 }; 130 131 static struct resource dns323_nor_flash_resource = { 132 .flags = IORESOURCE_MEM, 133 .start = DNS323_NOR_BOOT_BASE, 134 .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1, 135 }; 136 137 static struct platform_device dns323_nor_flash = { 138 .name = "physmap-flash", 139 .id = 0, 140 .dev = { .platform_data = &dns323_nor_flash_data, }, 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 = { .platform_data = &dns323_led_data, }, 174 }; 175 176 /**************************************************************************** 177 * GPIO Attached Keys 178 */ 179 180 static struct gpio_keys_button dns323_buttons[] = { 181 { 182 .code = KEY_RESTART, 183 .gpio = DNS323_GPIO_KEY_RESET, 184 .desc = "Reset Button", 185 .active_low = 1, 186 }, 187 { 188 .code = KEY_POWER, 189 .gpio = DNS323_GPIO_KEY_POWER, 190 .desc = "Power Button", 191 .active_low = 1, 192 } 193 }; 194 195 static struct gpio_keys_platform_data dns323_button_data = { 196 .buttons = dns323_buttons, 197 .nbuttons = ARRAY_SIZE(dns323_buttons), 198 }; 199 200 static struct platform_device dns323_button_device = { 201 .name = "gpio-keys", 202 .id = -1, 203 .num_resources = 0, 204 .dev = { .platform_data = &dns323_button_data, }, 205 }; 206 207 /**************************************************************************** 208 * General Setup 209 */ 210 211 static struct platform_device *dns323_plat_devices[] __initdata = { 212 &dns323_nor_flash, 213 &dns323_gpio_leds, 214 &dns323_button_device, 215 }; 216 217 /* 218 * On the DNS-323 the following devices are attached via I2C: 219 * 220 * i2c addr | chip | description 221 * 0x3e | GMT G760Af | fan speed PWM controller 222 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) 223 * 0x68 | ST M41T80 | RTC w/ alarm 224 */ 225 static struct i2c_board_info __initdata dns323_i2c_devices[] = { 226 { 227 I2C_BOARD_INFO("g760a", 0x3e), 228 }, 229 #if 0 230 /* this entry requires the new-style driver model lm75 driver, 231 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */ 232 { 233 I2C_BOARD_INFO("g751", 0x48), 234 }, 235 #endif 236 { 237 I2C_BOARD_INFO("m41t80", 0x68), 238 } 239 }; 240 241 /* DNS-323 specific power off method */ 242 static void dns323_power_off(void) 243 { 244 pr_info("%s: triggering power-off...\n", __func__); 245 gpio_set_value(DNS323_GPIO_POWER_OFF, 1); 246 } 247 248 static void __init dns323_init(void) 249 { 250 /* Setup basic Orion functions. Need to be called early. */ 251 orion5x_init(); 252 253 /* setup flash mapping 254 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 255 */ 256 orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE); 257 258 /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIe 259 * 260 * Open a special address decode windows for the PCIe WA. 261 */ 262 orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE, 263 ORION5X_PCIE_WA_SIZE); 264 265 /* set MPP to 0 as D-Link's 2.6.12.6 kernel did */ 266 orion5x_write(MPP_0_7_CTRL, 0); 267 orion5x_write(MPP_8_15_CTRL, 0); 268 orion5x_write(MPP_16_19_CTRL, 0); 269 orion5x_write(MPP_DEV_CTRL, 0); 270 271 /* Define used GPIO pins 272 273 GPIO Map: 274 275 | 0 | | PEX_RST_OUT (not controlled by GPIO) 276 | 1 | Out | right amber LED (= sata ch0 LED) (low-active) 277 | 2 | Out | left amber LED (= sata ch1 LED) (low-active) 278 | 3 | Out | //unknown// 279 | 4 | Out | power button LED (low-active, together with pin #5) 280 | 5 | Out | power button LED (low-active, together with pin #4) 281 | 6 | In | GMT G751-2f overtemp. shutdown signal (low-active) 282 | 7 | In | M41T80 nIRQ/OUT/SQW signal 283 | 8 | Out | triggers power off (high-active) 284 | 9 | In | power button switch (low-active) 285 | 10 | In | reset button switch (low-active) 286 | 11 | Out | //unknown// 287 | 12 | Out | //unknown// 288 | 13 | Out | //unknown// 289 | 14 | Out | //unknown// 290 | 15 | Out | //unknown// 291 */ 292 orion5x_gpio_set_valid_pins(0x07f6); 293 294 /* register dns323 specific power-off method */ 295 if ((gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0) 296 || (gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)) 297 pr_err("DNS323: failed to setup power-off GPIO\n"); 298 299 pm_power_off = dns323_power_off; 300 301 /* register flash and other platform devices */ 302 platform_add_devices(dns323_plat_devices, 303 ARRAY_SIZE(dns323_plat_devices)); 304 305 i2c_register_board_info(0, dns323_i2c_devices, 306 ARRAY_SIZE(dns323_i2c_devices)); 307 308 orion5x_eth_init(&dns323_eth_data); 309 } 310 311 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */ 312 MACHINE_START(DNS323, "D-Link DNS-323") 313 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ 314 .phys_io = ORION5X_REGS_PHYS_BASE, 315 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, 316 .boot_params = 0x00000100, 317 .init_machine = dns323_init, 318 .map_io = orion5x_map_io, 319 .init_irq = orion5x_init_irq, 320 .timer = &orion5x_timer, 321 .fixup = tag_fixup_mem32, 322 MACHINE_END 323