mirror of https://gitee.com/openkylin/linux.git
272 lines
6.9 KiB
C
272 lines
6.9 KiB
C
/*
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* Maxtor Shared Storage II Board Setup
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*
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* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/pci.h>
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#include <linux/irq.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/leds.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <linux/ata_platform.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/pci.h>
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#include <mach/orion5x.h>
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#include <mach/bridge-regs.h>
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#include "common.h"
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#include "mpp.h"
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#define MSS2_NOR_BOOT_BASE 0xff800000
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#define MSS2_NOR_BOOT_SIZE SZ_256K
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/*****************************************************************************
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* Maxtor Shared Storage II Info
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****************************************************************************/
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/*
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* Maxtor Shared Storage II hardware :
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* - Marvell 88F5182-A2 C500
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* - Marvell 88E1111 Gigabit Ethernet PHY
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* - RTC M41T81 (@0x68) on I2C bus
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* - 256KB NOR flash
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* - 64MB of RAM
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*/
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/*****************************************************************************
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* 256KB NOR Flash on BOOT Device
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****************************************************************************/
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static struct physmap_flash_data mss2_nor_flash_data = {
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.width = 1,
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};
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static struct resource mss2_nor_flash_resource = {
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.flags = IORESOURCE_MEM,
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.start = MSS2_NOR_BOOT_BASE,
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.end = MSS2_NOR_BOOT_BASE + MSS2_NOR_BOOT_SIZE - 1,
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};
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static struct platform_device mss2_nor_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &mss2_nor_flash_data,
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},
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.resource = &mss2_nor_flash_resource,
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.num_resources = 1,
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};
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/****************************************************************************
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* PCI setup
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****************************************************************************/
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static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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int irq;
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/*
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* Check for devices with hard-wired IRQs.
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*/
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irq = orion5x_pci_map_irq(dev, slot, pin);
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if (irq != -1)
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return irq;
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return -1;
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}
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static struct hw_pci mss2_pci __initdata = {
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.nr_controllers = 2,
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.setup = orion5x_pci_sys_setup,
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.scan = orion5x_pci_sys_scan_bus,
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.map_irq = mss2_pci_map_irq,
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};
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static int __init mss2_pci_init(void)
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{
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if (machine_is_mss2())
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pci_common_init(&mss2_pci);
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return 0;
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}
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subsys_initcall(mss2_pci_init);
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/*****************************************************************************
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* Ethernet
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****************************************************************************/
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static struct mv643xx_eth_platform_data mss2_eth_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR(8),
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};
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/*****************************************************************************
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* SATA
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****************************************************************************/
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static struct mv_sata_platform_data mss2_sata_data = {
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.n_ports = 2,
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};
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/*****************************************************************************
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* GPIO buttons
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****************************************************************************/
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#define MSS2_GPIO_KEY_RESET 12
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#define MSS2_GPIO_KEY_POWER 11
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static struct gpio_keys_button mss2_buttons[] = {
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{
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.code = KEY_POWER,
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.gpio = MSS2_GPIO_KEY_POWER,
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.desc = "Power",
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.active_low = 1,
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}, {
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.code = KEY_RESTART,
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.gpio = MSS2_GPIO_KEY_RESET,
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.desc = "Reset",
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.active_low = 1,
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},
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};
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static struct gpio_keys_platform_data mss2_button_data = {
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.buttons = mss2_buttons,
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.nbuttons = ARRAY_SIZE(mss2_buttons),
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};
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static struct platform_device mss2_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &mss2_button_data,
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},
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};
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/*****************************************************************************
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* RTC m41t81 on I2C bus
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****************************************************************************/
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#define MSS2_GPIO_RTC_IRQ 3
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static struct i2c_board_info __initdata mss2_i2c_rtc = {
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I2C_BOARD_INFO("m41t81", 0x68),
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};
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/*****************************************************************************
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* MSS2 power off method
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****************************************************************************/
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/*
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* On the Maxtor Shared Storage II, the shutdown process is the following :
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* - Userland modifies U-boot env to tell U-boot to go idle at next boot
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* - The board reboots
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* - U-boot starts and go into an idle mode until the user press "power"
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*/
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static void mss2_power_off(void)
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{
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u32 reg;
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/*
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* Enable and issue soft reset
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*/
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reg = readl(RSTOUTn_MASK);
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reg |= 1 << 2;
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writel(reg, RSTOUTn_MASK);
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reg = readl(CPU_SOFT_RESET);
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reg |= 1;
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writel(reg, CPU_SOFT_RESET);
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}
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/****************************************************************************
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* General Setup
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****************************************************************************/
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static unsigned int mss2_mpp_modes[] __initdata = {
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MPP0_GPIO, /* Power LED */
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MPP1_GPIO, /* Error LED */
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MPP2_UNUSED,
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MPP3_GPIO, /* RTC interrupt */
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MPP4_GPIO, /* HDD ind. (Single/Dual)*/
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MPP5_GPIO, /* HD0 5V control */
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MPP6_GPIO, /* HD0 12V control */
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MPP7_GPIO, /* HD1 5V control */
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MPP8_GPIO, /* HD1 12V control */
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MPP9_UNUSED,
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MPP10_GPIO, /* Fan control */
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MPP11_GPIO, /* Power button */
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MPP12_GPIO, /* Reset button */
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MPP13_UNUSED,
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MPP14_SATA_LED, /* SATA 0 active */
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MPP15_SATA_LED, /* SATA 1 active */
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MPP16_UNUSED,
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MPP17_UNUSED,
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MPP18_UNUSED,
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MPP19_UNUSED,
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0,
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};
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static void __init mss2_init(void)
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{
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/* Setup basic Orion functions. Need to be called early. */
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orion5x_init();
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orion5x_mpp_conf(mss2_mpp_modes);
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/*
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* MPP[20] Unused
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* MPP[21] PCI clock
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* MPP[22] USB 0 over current
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* MPP[23] USB 1 over current
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*/
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/*
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* Configure peripherals.
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*/
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orion5x_ehci0_init();
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orion5x_ehci1_init();
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orion5x_eth_init(&mss2_eth_data);
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orion5x_i2c_init();
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orion5x_sata_init(&mss2_sata_data);
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orion5x_uart0_init();
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orion5x_xor_init();
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orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE);
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platform_device_register(&mss2_nor_flash);
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platform_device_register(&mss2_button_device);
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if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) {
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if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0)
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mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ);
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else
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gpio_free(MSS2_GPIO_RTC_IRQ);
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}
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i2c_register_board_info(0, &mss2_i2c_rtc, 1);
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/* register mss2 specific power-off method */
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pm_power_off = mss2_power_off;
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}
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MACHINE_START(MSS2, "Maxtor Shared Storage II")
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/* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
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.atag_offset = 0x100,
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.init_machine = mss2_init,
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.map_io = orion5x_map_io,
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.init_early = orion5x_init_early,
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.init_irq = orion5x_init_irq,
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.timer = &orion5x_timer,
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.fixup = tag_fixup_mem32,
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.restart = orion5x_restart,
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MACHINE_END
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