[deliverable/linux.git] / arch / arm / mach-orion5x / edmini_v2-setup.c

/*
 * arch/arm/mach-orion5x/edmini_v2-setup.c
 *
 * LaCie Ethernet Disk mini V2 Setup
 *
 * Copyright (C) 2008 Christopher Moore <moore@free.fr>
 * Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

/*
 * TODO: add Orion USB device port init when kernel.org support is added.
 * TODO: add flash write support: see below.
 * TODO: add power-off support.
 * TODO: add I2C EEPROM support.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mbus.h>
#include <linux/mtd/physmap.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 "common.h"
#include "mpp.h"

/*****************************************************************************
 * EDMINI_V2 Info
 ****************************************************************************/

/*
 * 512KB NOR flash Device bus boot chip select
 */

#define EDMINI_V2_NOR_BOOT_BASE		0xfff80000
#define EDMINI_V2_NOR_BOOT_SIZE		SZ_512K

/*****************************************************************************
 * 512KB NOR Flash on BOOT Device
 ****************************************************************************/

/*
 * Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
 * -type device. This could cause risks of accidentally erasing critical
 * flash sectors. We thus define a single, write-protected partition covering
 * the whole flash.
 * TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
 * code, break this into at least three partitions: 'u-boot code', 'u-boot
 * environment' and 'whatever is left'.
 */

static struct mtd_partition edmini_v2_partitions[] = {
	{
		.name		= "Full512kb",
		.size		= 0x00080000,
		.offset		= 0x00000000,
		.mask_flags	= MTD_WRITEABLE,
	},
};

static struct physmap_flash_data edmini_v2_nor_flash_data = {
	.width		= 1,
	.parts		= edmini_v2_partitions,
	.nr_parts	= ARRAY_SIZE(edmini_v2_partitions),
};

static struct resource edmini_v2_nor_flash_resource = {
	.flags			= IORESOURCE_MEM,
	.start			= EDMINI_V2_NOR_BOOT_BASE,
	.end			= EDMINI_V2_NOR_BOOT_BASE
		+ EDMINI_V2_NOR_BOOT_SIZE - 1,
};

static struct platform_device edmini_v2_nor_flash = {
	.name			= "physmap-flash",
	.id			= 0,
	.dev		= {
		.platform_data	= &edmini_v2_nor_flash_data,
	},
	.num_resources		= 1,
	.resource		= &edmini_v2_nor_flash_resource,
};

/*****************************************************************************
 * RTC 5C372a on I2C bus
 ****************************************************************************/

#define EDMINIV2_RTC_GPIO	3

static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
	I2C_BOARD_INFO("rs5c372a", 0x32),
	.irq = 0,
};

/*****************************************************************************
 * General Setup
 ****************************************************************************/
static unsigned int edminiv2_mpp_modes[] __initdata = {
	MPP0_UNUSED,
	MPP1_UNUSED,
	MPP2_UNUSED,
	MPP3_GPIO,	/* RTC interrupt */
	MPP4_UNUSED,
	MPP5_UNUSED,
	MPP6_UNUSED,
	MPP7_UNUSED,
	MPP8_UNUSED,
	MPP9_UNUSED,
	MPP10_UNUSED,
	MPP11_UNUSED,
	MPP12_SATA_LED,	/* SATA 0 presence */
	MPP13_SATA_LED,	/* SATA 1 presence */
	MPP14_SATA_LED,	/* SATA 0 active */
	MPP15_SATA_LED,	/* SATA 1 active */
	/* 16: Power LED control (0 = On, 1 = Off) */
	MPP16_GPIO,
	/* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
	MPP17_GPIO,
	/* 18: Power button status (0 = Released, 1 = Pressed) */
	MPP18_GPIO,
	MPP19_UNUSED,
	0,
};

void __init edmini_v2_init(void)
{
	orion5x_mpp_conf(edminiv2_mpp_modes);

	/*
	 * Configure peripherals.
	 */
	orion5x_ehci0_init();

	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
				    ORION_MBUS_DEVBUS_BOOT_ATTR,
				    EDMINI_V2_NOR_BOOT_BASE,
				    EDMINI_V2_NOR_BOOT_SIZE);
	platform_device_register(&edmini_v2_nor_flash);

	pr_notice("edmini_v2: USB device port, flash write and power-off "
		  "are not yet supported.\n");

	/* Get RTC IRQ and register the chip */
	if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
		if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
			edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
		else
			gpio_free(EDMINIV2_RTC_GPIO);
	}

	if (edmini_v2_i2c_rtc.irq == 0)
		pr_warning("edmini_v2: failed to get RTC IRQ\n");

	i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
}
Commit	Line	Data
0eb66974 CM	1	/*
	2	* arch/arm/mach-orion5x/edmini_v2-setup.c
	3	*
	4	* LaCie Ethernet Disk mini V2 Setup
	5	*
	6	* Copyright (C) 2008 Christopher Moore <moore@free.fr>
	7	* Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr>
	8	*
	9	* This file is licensed under the terms of the GNU General Public
	10	* License version 2. This program is licensed "as is" without any
	11	* warranty of any kind, whether express or implied.
	12	*/
	13
	14	/*
	15	* TODO: add Orion USB device port init when kernel.org support is added.
	16	* TODO: add flash write support: see below.
	17	* TODO: add power-off support.
	18	* TODO: add I2C EEPROM support.
	19	*/
	20
	21	#include <linux/kernel.h>
	22	#include <linux/init.h>
	23	#include <linux/platform_device.h>
	24	#include <linux/pci.h>
	25	#include <linux/irq.h>
497d3d0f	26	#include <linux/mbus.h>
0eb66974	27	#include <linux/mtd/physmap.h>
3d014b01 AA	28	#include <linux/leds.h>
	29	#include <linux/gpio_keys.h>
	30	#include <linux/input.h>
0eb66974 CM	31	#include <linux/i2c.h>
	32	#include <linux/ata_platform.h>
	33	#include <linux/gpio.h>
	34	#include <asm/mach-types.h>
	35	#include <asm/mach/arch.h>
	36	#include <asm/mach/pci.h>
	37	#include <mach/orion5x.h>
	38	#include "common.h"
	39	#include "mpp.h"
	40
	41	/*****************************************************************************
	42	* EDMINI_V2 Info
	43	****************************************************************************/
	44
	45	/*
	46	* 512KB NOR flash Device bus boot chip select
	47	*/
	48
	49	#define EDMINI_V2_NOR_BOOT_BASE 0xfff80000
	50	#define EDMINI_V2_NOR_BOOT_SIZE SZ_512K
	51
	52	/*****************************************************************************
	53	* 512KB NOR Flash on BOOT Device
	54	****************************************************************************/
	55
	56	/*
	57	* Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
	58	* -type device. This could cause risks of accidentally erasing critical
	59	* flash sectors. We thus define a single, write-protected partition covering
	60	* the whole flash.
	61	* TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
	62	* code, break this into at least three partitions: 'u-boot code', 'u-boot
	63	* environment' and 'whatever is left'.
	64	*/
	65
	66	static struct mtd_partition edmini_v2_partitions[] = {
	67	{
	68	.name = "Full512kb",
	69	.size = 0x00080000,
	70	.offset = 0x00000000,
	71	.mask_flags = MTD_WRITEABLE,
	72	},
	73	};
	74
	75	static struct physmap_flash_data edmini_v2_nor_flash_data = {
	76	.width = 1,
	77	.parts = edmini_v2_partitions,
	78	.nr_parts = ARRAY_SIZE(edmini_v2_partitions),
	79	};
	80
	81	static struct resource edmini_v2_nor_flash_resource = {
	82	.flags = IORESOURCE_MEM,
	83	.start = EDMINI_V2_NOR_BOOT_BASE,
	84	.end = EDMINI_V2_NOR_BOOT_BASE
	85	+ EDMINI_V2_NOR_BOOT_SIZE - 1,
	86	};
	87
	88	static struct platform_device edmini_v2_nor_flash = {
	89	.name = "physmap-flash",
	90	.id = 0,
	91	.dev = {
	92	.platform_data = &edmini_v2_nor_flash_data,
	93	},
	94	.num_resources = 1,
95	.resource = &edmini_v2_nor_flash_resource,
96	};
97
0eb66974 CM	98	/*****************************************************************************
	99	* RTC 5C372a on I2C bus
	100	****************************************************************************/
	101
	102	#define EDMINIV2_RTC_GPIO 3
	103
	104	static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
	105	I2C_BOARD_INFO("rs5c372a", 0x32),
	106	.irq = 0,
	107	};
	108
0eb66974 CM	109	/*****************************************************************************
	110	* General Setup
	111	****************************************************************************/
554cdaef AL	112	static unsigned int edminiv2_mpp_modes[] __initdata = {
	113	MPP0_UNUSED,
	114	MPP1_UNUSED,
	115	MPP2_UNUSED,
	116	MPP3_GPIO, /* RTC interrupt */
	117	MPP4_UNUSED,
	118	MPP5_UNUSED,
	119	MPP6_UNUSED,
	120	MPP7_UNUSED,
	121	MPP8_UNUSED,
	122	MPP9_UNUSED,
	123	MPP10_UNUSED,
	124	MPP11_UNUSED,
	125	MPP12_SATA_LED, /* SATA 0 presence */
	126	MPP13_SATA_LED, /* SATA 1 presence */
	127	MPP14_SATA_LED, /* SATA 0 active */
	128	MPP15_SATA_LED, /* SATA 1 active */
0eb66974	129	/* 16: Power LED control (0 = On, 1 = Off) */
554cdaef	130	MPP16_GPIO,
0eb66974	131	/* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
554cdaef	132	MPP17_GPIO,
0eb66974	133	/* 18: Power button status (0 = Released, 1 = Pressed) */
554cdaef AL	134	MPP18_GPIO,
	135	MPP19_UNUSED,
	136	0,
0eb66974 CM	137	};
0eb66974 CM	138
07f645df	139	void __init edmini_v2_init(void)
0eb66974	140	{
0eb66974 CM	141	orion5x_mpp_conf(edminiv2_mpp_modes);
	142
	143	/*
	144	* Configure peripherals.
	145	*/
	146	orion5x_ehci0_init();
0eb66974	147
4ca2c040 TP	148	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
	149	ORION_MBUS_DEVBUS_BOOT_ATTR,
	150	EDMINI_V2_NOR_BOOT_BASE,
	151	EDMINI_V2_NOR_BOOT_SIZE);
0eb66974 CM	152	platform_device_register(&edmini_v2_nor_flash);
	153
	154	pr_notice("edmini_v2: USB device port, flash write and power-off "
	155	"are not yet supported.\n");
	156
	157	/* Get RTC IRQ and register the chip */
	158	if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
	159	if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
	160	edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
	161	else
	162	gpio_free(EDMINIV2_RTC_GPIO);
	163	}
	164
	165	if (edmini_v2_i2c_rtc.irq == 0)
	166	pr_warning("edmini_v2: failed to get RTC IRQ\n");
	167
	168	i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
	169	}