[thirdparty/linux.git] / arch / arm / mach-orion5x / mss2-setup.c

/*
 * Maxtor Shared Storage II Board Setup
 *
 * Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include <mach/bridge-regs.h>
#include "common.h"
#include "mpp.h"

#define MSS2_NOR_BOOT_BASE	0xff800000
#define MSS2_NOR_BOOT_SIZE	SZ_256K

/*****************************************************************************
 * Maxtor Shared Storage II Info
 ****************************************************************************/

/*
 * Maxtor Shared Storage II hardware :
 * - Marvell 88F5182-A2 C500
 * - Marvell 88E1111 Gigabit Ethernet PHY
 * - RTC M41T81 (@0x68) on I2C bus
 * - 256KB NOR flash
 * - 64MB of RAM
 */

/*****************************************************************************
 * 256KB NOR Flash on BOOT Device
 ****************************************************************************/

static struct physmap_flash_data mss2_nor_flash_data = {
	.width		= 1,
};

static struct resource mss2_nor_flash_resource = {
	.flags		= IORESOURCE_MEM,
	.start		= MSS2_NOR_BOOT_BASE,
	.end		= MSS2_NOR_BOOT_BASE + MSS2_NOR_BOOT_SIZE - 1,
};

static struct platform_device mss2_nor_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &mss2_nor_flash_data,
	},
	.resource	= &mss2_nor_flash_resource,
	.num_resources	= 1,
};

/****************************************************************************
 * PCI setup
 ****************************************************************************/
static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
	int irq;

	/*
	 * Check for devices with hard-wired IRQs.
	 */
	irq = orion5x_pci_map_irq(dev, slot, pin);
	if (irq != -1)
		return irq;

	return -1;
}

static struct hw_pci mss2_pci __initdata = {
	.nr_controllers = 2,
	.setup		= orion5x_pci_sys_setup,
	.scan		= orion5x_pci_sys_scan_bus,
	.map_irq	= mss2_pci_map_irq,
};

static int __init mss2_pci_init(void)
{
	if (machine_is_mss2())
		pci_common_init(&mss2_pci);

	return 0;
}
subsys_initcall(mss2_pci_init);


/*****************************************************************************
 * Ethernet
 ****************************************************************************/

static struct mv643xx_eth_platform_data mss2_eth_data = {
	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
};

/*****************************************************************************
 * SATA
 ****************************************************************************/

static struct mv_sata_platform_data mss2_sata_data = {
	.n_ports	= 2,
};

/*****************************************************************************
 * GPIO buttons
 ****************************************************************************/

#define MSS2_GPIO_KEY_RESET	12
#define MSS2_GPIO_KEY_POWER	11

static struct gpio_keys_button mss2_buttons[] = {
	{
		.code		= KEY_POWER,
		.gpio		= MSS2_GPIO_KEY_POWER,
		.desc		= "Power",
		.active_low	= 1,
	}, {
		.code		= KEY_RESTART,
		.gpio		= MSS2_GPIO_KEY_RESET,
		.desc		= "Reset",
		.active_low	= 1,
	},
};

static struct gpio_keys_platform_data mss2_button_data = {
	.buttons	= mss2_buttons,
	.nbuttons	= ARRAY_SIZE(mss2_buttons),
};

static struct platform_device mss2_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data	= &mss2_button_data,
	},
};

/*****************************************************************************
 * RTC m41t81 on I2C bus
 ****************************************************************************/

#define MSS2_GPIO_RTC_IRQ	3

static struct i2c_board_info __initdata mss2_i2c_rtc = {
	I2C_BOARD_INFO("m41t81", 0x68),
};

/*****************************************************************************
 * MSS2 power off method
 ****************************************************************************/
/*
 * On the Maxtor Shared Storage II, the shutdown process is the following :
 * - Userland modifies U-boot env to tell U-boot to go idle at next boot
 * - The board reboots
 * - U-boot starts and go into an idle mode until the user press "power"
 */
static void mss2_power_off(void)
{
	u32 reg;

	/*
	 * Enable and issue soft reset
	 */
	reg = readl(RSTOUTn_MASK);
	reg |= 1 << 2;
	writel(reg, RSTOUTn_MASK);

	reg = readl(CPU_SOFT_RESET);
	reg |= 1;
	writel(reg, CPU_SOFT_RESET);
}

/****************************************************************************
 * General Setup
 ****************************************************************************/
static unsigned int mss2_mpp_modes[] __initdata = {
	MPP0_GPIO,		/* Power LED */
	MPP1_GPIO,		/* Error LED */
	MPP2_UNUSED,
	MPP3_GPIO,		/* RTC interrupt */
	MPP4_GPIO,		/* HDD ind. (Single/Dual)*/
	MPP5_GPIO,		/* HD0 5V control */
	MPP6_GPIO,		/* HD0 12V control */
	MPP7_GPIO,		/* HD1 5V control */
	MPP8_GPIO,		/* HD1 12V control */
	MPP9_UNUSED,
	MPP10_GPIO,		/* Fan control */
	MPP11_GPIO,		/* Power button */
	MPP12_GPIO,		/* Reset button */
	MPP13_UNUSED,
	MPP14_SATA_LED,		/* SATA 0 active */
	MPP15_SATA_LED,		/* SATA 1 active */
	MPP16_UNUSED,
	MPP17_UNUSED,
	MPP18_UNUSED,
	MPP19_UNUSED,
	0,
};

static void __init mss2_init(void)
{
	/* Setup basic Orion functions. Need to be called early. */
	orion5x_init();

	orion5x_mpp_conf(mss2_mpp_modes);

	/*
	 * MPP[20] Unused
	 * MPP[21] PCI clock
	 * MPP[22] USB 0 over current
	 * MPP[23] USB 1 over current
	 */

	/*
	 * Configure peripherals.
	 */
	orion5x_ehci0_init();
	orion5x_ehci1_init();
	orion5x_eth_init(&mss2_eth_data);
	orion5x_i2c_init();
	orion5x_sata_init(&mss2_sata_data);
	orion5x_uart0_init();
	orion5x_xor_init();

	orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE);
	platform_device_register(&mss2_nor_flash);

	platform_device_register(&mss2_button_device);

	if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) {
		if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0)
			mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ);
		else
			gpio_free(MSS2_GPIO_RTC_IRQ);
	}
	i2c_register_board_info(0, &mss2_i2c_rtc, 1);

	/* register mss2 specific power-off method */
	pm_power_off = mss2_power_off;
}

MACHINE_START(MSS2, "Maxtor Shared Storage II")
	/* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
	.atag_offset	= 0x100,
	.init_machine	= mss2_init,
	.map_io		= orion5x_map_io,
	.init_early	= orion5x_init_early,
	.init_irq	= orion5x_init_irq,
	.init_time	= orion5x_timer_init,
	.fixup		= tag_fixup_mem32,
	.restart	= orion5x_restart,
MACHINE_END
Commit	Line	Data
7ec753cc SB	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>
a09e64fb	28	#include <mach/orion5x.h>
fdd8b079	29	#include <mach/bridge-regs.h>
7ec753cc SB	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	****************************************************************************/
d5341942	76	static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
7ec753cc SB	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,
7ec753cc SB	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 = {
ac840605	112	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
7ec753cc SB	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	*/
6462c616	183	reg = readl(RSTOUTn_MASK);
7ec753cc	184	reg \|= 1 << 2;
6462c616	185	writel(reg, RSTOUTn_MASK);
7ec753cc SB	186
	187	reg = readl(CPU_SOFT_RESET);
	188	reg \|= 1;
	189	writel(reg, CPU_SOFT_RESET);
	190	}
	191
	192	/****************************************************************************
	193	* General Setup
	194	****************************************************************************/
554cdaef AL	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,
7ec753cc SB	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();
1d5a1a6e	242	orion5x_xor_init();
7ec753cc SB	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> */
65aa1b1e	263	.atag_offset = 0x100,
7ec753cc SB	264	.init_machine = mss2_init,
7ec753cc SB	265	.map_io = orion5x_map_io,
4ee1f6b5	266	.init_early = orion5x_init_early,
7ec753cc	267	.init_irq = orion5x_init_irq,
6bb27d73	268	.init_time = orion5x_timer_init,
764cbcc2 RK	269	.fixup = tag_fixup_mem32,
764cbcc2 RK	270	.restart = orion5x_restart,
7ec753cc	271	MACHINE_END