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 53static struct physmap_flash_data mss2_nor_flash_data = { 54 .width = 1, 55}; 56 57static 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 63static 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 ****************************************************************************/ 76static int __init mss2_pci_map_irq(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 90static struct hw_pci mss2_pci __initdata = { 91 .nr_controllers = 2, 92 .swizzle = pci_std_swizzle, 93 .setup = orion5x_pci_sys_setup, 94 .scan = orion5x_pci_sys_scan_bus, 95 .map_irq = mss2_pci_map_irq, 96}; 97 98static int __init mss2_pci_init(void) 99{ 100 if (machine_is_mss2()) 101 pci_common_init(&mss2_pci); 102 103 return 0; 104} 105subsys_initcall(mss2_pci_init); 106 107 108/***************************************************************************** 109 * Ethernet 110 ****************************************************************************/ 111 112static struct mv643xx_eth_platform_data mss2_eth_data = { 113 .phy_addr = MV643XX_ETH_PHY_ADDR(8), 114}; 115 116/***************************************************************************** 117 * SATA 118 ****************************************************************************/ 119 120static struct mv_sata_platform_data mss2_sata_data = { 121 .n_ports = 2, 122}; 123 124/***************************************************************************** 125 * GPIO buttons 126 ****************************************************************************/ 127 128#define MSS2_GPIO_KEY_RESET 12 129#define MSS2_GPIO_KEY_POWER 11 130 131static struct gpio_keys_button mss2_buttons[] = { 132 { 133 .code = KEY_POWER, 134 .gpio = MSS2_GPIO_KEY_POWER, 135 .desc = "Power", 136 .active_low = 1, 137 }, { 138 .code = KEY_RESTART, 139 .gpio = MSS2_GPIO_KEY_RESET, 140 .desc = "Reset", 141 .active_low = 1, 142 }, 143}; 144 145static struct gpio_keys_platform_data mss2_button_data = { 146 .buttons = mss2_buttons, 147 .nbuttons = ARRAY_SIZE(mss2_buttons), 148}; 149 150static struct platform_device mss2_button_device = { 151 .name = "gpio-keys", 152 .id = -1, 153 .dev = { 154 .platform_data = &mss2_button_data, 155 }, 156}; 157 158/***************************************************************************** 159 * RTC m41t81 on I2C bus 160 ****************************************************************************/ 161 162#define MSS2_GPIO_RTC_IRQ 3 163 164static struct i2c_board_info __initdata mss2_i2c_rtc = { 165 I2C_BOARD_INFO("m41t81", 0x68), 166}; 167 168/***************************************************************************** 169 * MSS2 power off method 170 ****************************************************************************/ 171/* 172 * On the Maxtor Shared Storage II, the shutdown process is the following : 173 * - Userland modifies U-boot env to tell U-boot to go idle at next boot 174 * - The board reboots 175 * - U-boot starts and go into an idle mode until the user press "power" 176 */ 177static void mss2_power_off(void) 178{ 179 u32 reg; 180 181 /* 182 * Enable and issue soft reset 183 */ 184 reg = readl(RSTOUTn_MASK); 185 reg |= 1 << 2; 186 writel(reg, RSTOUTn_MASK); 187 188 reg = readl(CPU_SOFT_RESET); 189 reg |= 1; 190 writel(reg, CPU_SOFT_RESET); 191} 192 193/**************************************************************************** 194 * General Setup 195 ****************************************************************************/ 196static struct orion5x_mpp_mode mss2_mpp_modes[] __initdata = { 197 { 0, MPP_GPIO }, /* Power LED */ 198 { 1, MPP_GPIO }, /* Error LED */ 199 { 2, MPP_UNUSED }, 200 { 3, MPP_GPIO }, /* RTC interrupt */ 201 { 4, MPP_GPIO }, /* HDD ind. (Single/Dual)*/ 202 { 5, MPP_GPIO }, /* HD0 5V control */ 203 { 6, MPP_GPIO }, /* HD0 12V control */ 204 { 7, MPP_GPIO }, /* HD1 5V control */ 205 { 8, MPP_GPIO }, /* HD1 12V control */ 206 { 9, MPP_UNUSED }, 207 { 10, MPP_GPIO }, /* Fan control */ 208 { 11, MPP_GPIO }, /* Power button */ 209 { 12, MPP_GPIO }, /* Reset button */ 210 { 13, MPP_UNUSED }, 211 { 14, MPP_SATA_LED }, /* SATA 0 active */ 212 { 15, MPP_SATA_LED }, /* SATA 1 active */ 213 { 16, MPP_UNUSED }, 214 { 17, MPP_UNUSED }, 215 { 18, MPP_UNUSED }, 216 { 19, MPP_UNUSED }, 217 { -1 }, 218}; 219 220static void __init mss2_init(void) 221{ 222 /* Setup basic Orion functions. Need to be called early. */ 223 orion5x_init(); 224 225 orion5x_mpp_conf(mss2_mpp_modes); 226 227 /* 228 * MPP[20] Unused 229 * MPP[21] PCI clock 230 * MPP[22] USB 0 over current 231 * MPP[23] USB 1 over current 232 */ 233 234 /* 235 * Configure peripherals. 236 */ 237 orion5x_ehci0_init(); 238 orion5x_ehci1_init(); 239 orion5x_eth_init(&mss2_eth_data); 240 orion5x_i2c_init(); 241 orion5x_sata_init(&mss2_sata_data); 242 orion5x_uart0_init(); 243 orion5x_xor_init(); 244 245 orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE); 246 platform_device_register(&mss2_nor_flash); 247 248 platform_device_register(&mss2_button_device); 249 250 if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) { 251 if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0) 252 mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ); 253 else 254 gpio_free(MSS2_GPIO_RTC_IRQ); 255 } 256 i2c_register_board_info(0, &mss2_i2c_rtc, 1); 257 258 /* register mss2 specific power-off method */ 259 pm_power_off = mss2_power_off; 260} 261 262MACHINE_START(MSS2, "Maxtor Shared Storage II") 263 /* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */ 264 .phys_io = ORION5X_REGS_PHYS_BASE, 265 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, 266 .boot_params = 0x00000100, 267 .init_machine = mss2_init, 268 .map_io = orion5x_map_io, 269 .init_irq = orion5x_init_irq, 270 .timer = &orion5x_timer, 271 .fixup = tag_fixup_mem32 272MACHINE_END 273