Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 28 | #include <mach/orion5x.h> |
Nicolas Pitre | fdd8b07 | 2009-04-22 20:08:17 +0100 | [diff] [blame] | 29 | #include <mach/bridge-regs.h> |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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 | ****************************************************************************/ |
Ralf Baechle | d534194 | 2011-06-10 15:30:21 +0100 | [diff] [blame] | 76 | static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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, |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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 = { |
Lennert Buytenhek | ac840605 | 2008-08-26 14:06:47 +0200 | [diff] [blame] | 112 | .phy_addr = MV643XX_ETH_PHY_ADDR(8), |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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 | */ |
Thomas Reitmayr | 6462c61 | 2009-06-01 13:38:33 +0200 | [diff] [blame] | 183 | reg = readl(RSTOUTn_MASK); |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 184 | reg |= 1 << 2; |
Thomas Reitmayr | 6462c61 | 2009-06-01 13:38:33 +0200 | [diff] [blame] | 185 | writel(reg, RSTOUTn_MASK); |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 186 | |
| 187 | reg = readl(CPU_SOFT_RESET); |
| 188 | reg |= 1; |
| 189 | writel(reg, CPU_SOFT_RESET); |
| 190 | } |
| 191 | |
| 192 | /**************************************************************************** |
| 193 | * General Setup |
| 194 | ****************************************************************************/ |
Andrew Lunn | 554cdae | 2011-05-15 13:32:53 +0200 | [diff] [blame] | 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, |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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(); |
Saeed Bishara | 1d5a1a6 | 2008-06-16 23:25:12 -1100 | [diff] [blame] | 242 | orion5x_xor_init(); |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 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> */ |
Nicolas Pitre | 65aa1b1 | 2011-07-05 22:38:15 -0400 | [diff] [blame] | 263 | .atag_offset = 0x100, |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 264 | .init_machine = mss2_init, |
| 265 | .map_io = orion5x_map_io, |
Lennert Buytenhek | 4ee1f6b | 2010-10-15 16:50:26 +0200 | [diff] [blame] | 266 | .init_early = orion5x_init_early, |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 267 | .init_irq = orion5x_init_irq, |
| 268 | .timer = &orion5x_timer, |
Russell King | 764cbcc2 | 2011-11-05 10:13:41 +0000 | [diff] [blame] | 269 | .fixup = tag_fixup_mem32, |
| 270 | .restart = orion5x_restart, |
Sylver Bruneau | 7ec753c | 2008-06-10 01:00:38 +0200 | [diff] [blame] | 271 | MACHINE_END |