[deliverable/linux.git] / arch / mips / alchemy / mtx-1 / platform.c

/*
 * MTX-1 platform devices registration
 *
 * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <mtd/mtd-abi.h>

#include <asm/mach-au1x00/au1xxx_eth.h>

static struct gpio_keys_button mtx1_gpio_button[] = {
	{
		.gpio = 207,
		.code = BTN_0,
		.desc = "System button",
	}
};

static struct gpio_keys_platform_data mtx1_buttons_data = {
	.buttons = mtx1_gpio_button,
	.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
};

static struct platform_device mtx1_button = {
	.name = "gpio-keys",
	.id = -1,
	.dev = {
		.platform_data = &mtx1_buttons_data,
	}
};

static struct resource mtx1_wdt_res[] = {
	[0] = {
		.start	= 215,
		.end	= 215,
		.name	= "mtx1-wdt-gpio",
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device mtx1_wdt = {
	.name = "mtx1-wdt",
	.id = 0,
	.num_resources = ARRAY_SIZE(mtx1_wdt_res),
	.resource = mtx1_wdt_res,
};

static struct gpio_led default_leds[] = {
	{
		.name	= "mtx1:green",
		.gpio = 211,
	}, {
		.name = "mtx1:red",
		.gpio = 212,
	},
};

static struct gpio_led_platform_data mtx1_led_data = {
	.num_leds = ARRAY_SIZE(default_leds),
	.leds = default_leds,
};

static struct platform_device mtx1_gpio_leds = {
	.name = "leds-gpio",
	.id = -1,
	.dev = {
		.platform_data = &mtx1_led_data,
	}
};

static struct mtd_partition mtx1_mtd_partitions[] = {
	{
		.name	= "filesystem",
		.size	= 0x01C00000,
		.offset	= 0,
	},
	{
		.name	= "yamon",
		.size	= 0x00100000,
		.offset	= MTDPART_OFS_APPEND,
		.mask_flags = MTD_WRITEABLE,
	},
	{
		.name	= "kernel",
		.size	= 0x002c0000,
		.offset	= MTDPART_OFS_APPEND,
	},
	{
		.name	= "yamon env",
		.size	= 0x00040000,
		.offset	= MTDPART_OFS_APPEND,
	},
};

static struct physmap_flash_data mtx1_flash_data = {
	.width		= 4,
	.nr_parts	= 4,
	.parts		= mtx1_mtd_partitions,
};

static struct resource mtx1_mtd_resource = {
	.start	= 0x1e000000,
	.end	= 0x1fffffff,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device mtx1_mtd = {
	.name		= "physmap-flash",
	.dev		= {
		.platform_data	= &mtx1_flash_data,
	},
	.num_resources	= 1,
	.resource	= &mtx1_mtd_resource,
};

static struct resource alchemy_pci_host_res[] = {
	[0] = {
		.start	= AU1500_PCI_PHYS_ADDR,
		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
		.flags	= IORESOURCE_MEM,
	},
};

static int mtx1_pci_idsel(unsigned int devsel, int assert)
{
	/* This function is only necessary to support a proprietary Cardbus
	 * adapter on the mtx-1 "singleboard" variant. It triggers a custom
	 * logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
	 */
	if (assert && devsel != 0)
		/* Suppress signal to Cardbus */
		alchemy_gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
	else
		alchemy_gpio_set_value(1, 1);	/* set EXT_IO3 ON */

	udelay(1);
	return 1;
}

static const char mtx1_irqtab[][5] = {
	[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
	[1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
	[2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
	[3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
	[4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
	[5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
	[6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
	[7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
};

static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
{
	return mtx1_irqtab[slot][pin];
}

static struct alchemy_pci_platdata mtx1_pci_pd = {
	.board_map_irq	 = mtx1_map_pci_irq,
	.board_pci_idsel = mtx1_pci_idsel,
	.pci_cfg_set	 = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
			   PCI_CONFIG_CH |
#if defined(__MIPSEB__)
			   PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
#else
			   0,
#endif
};

static struct platform_device mtx1_pci_host = {
	.dev.platform_data = &mtx1_pci_pd,
	.name		= "alchemy-pci",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
	.resource	= alchemy_pci_host_res,
};


static struct __initdata platform_device * mtx1_devs[] = {
	&mtx1_pci_host,
	&mtx1_gpio_leds,
	&mtx1_wdt,
	&mtx1_button,
	&mtx1_mtd,
};

static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
	.phy_search_highest_addr	= 1,
	.phy1_search_mac0 		= 1,
};

static int __init mtx1_register_devices(void)
{
	int rc;

	au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);

	rc = gpio_request(mtx1_gpio_button[0].gpio,
					mtx1_gpio_button[0].desc);
	if (rc < 0) {
		printk(KERN_INFO "mtx1: failed to request %d\n",
					mtx1_gpio_button[0].gpio);
		goto out;
	}
	gpio_direction_input(mtx1_gpio_button[0].gpio);
out:
	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
}

arch_initcall(mtx1_register_devices);
Commit	Line	Data
26c288f8 FF	1	/*
	2	* MTX-1 platform devices registration
	3	*
a1b021d3	4	* Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
26c288f8 FF	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include <linux/init.h>
26c288f8 FF	22	#include <linux/platform_device.h>
26c288f8 FF	23	#include <linux/leds.h>
1ff1a78c	24	#include <linux/gpio.h>
f6ed10ab FF	25	#include <linux/gpio_keys.h>
f6ed10ab FF	26	#include <linux/input.h>
95283563 YY	27	#include <linux/mtd/partitions.h>
	28	#include <linux/mtd/physmap.h>
	29	#include <mtd/mtd-abi.h>
26c288f8	30
bf3a1eb8 FF	31	#include <asm/mach-au1x00/au1xxx_eth.h>
bf3a1eb8 FF	32
f6ed10ab FF	33	static struct gpio_keys_button mtx1_gpio_button[] = {
	34	{
	35	.gpio = 207,
	36	.code = BTN_0,
	37	.desc = "System button",
	38	}
	39	};
	40
	41	static struct gpio_keys_platform_data mtx1_buttons_data = {
	42	.buttons = mtx1_gpio_button,
	43	.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
	44	};
	45
	46	static struct platform_device mtx1_button = {
	47	.name = "gpio-keys",
	48	.id = -1,
	49	.dev = {
	50	.platform_data = &mtx1_buttons_data,
	51	}
	52	};
	53
26c288f8 FF	54	static struct resource mtx1_wdt_res[] = {
26c288f8 FF	55	[0] = {
b7f720d6 ML	56	.start = 215,
b7f720d6 ML	57	.end = 215,
26c288f8 FF	58	.name = "mtx1-wdt-gpio",
	59	.flags = IORESOURCE_IRQ,
	60	}
	61	};
	62
26c288f8 FF	63	static struct platform_device mtx1_wdt = {
	64	.name = "mtx1-wdt",
	65	.id = 0,
	66	.num_resources = ARRAY_SIZE(mtx1_wdt_res),
	67	.resource = mtx1_wdt_res,
	68	};
	69
	70	static struct gpio_led default_leds[] = {
	71	{
	72	.name = "mtx1:green",
	73	.gpio = 211,
	74	}, {
	75	.name = "mtx1:red",
	76	.gpio = 212,
	77	},
	78	};
	79
	80	static struct gpio_led_platform_data mtx1_led_data = {
	81	.num_leds = ARRAY_SIZE(default_leds),
	82	.leds = default_leds,
	83	};
	84
	85	static struct platform_device mtx1_gpio_leds = {
	86	.name = "leds-gpio",
	87	.id = -1,
	88	.dev = {
	89	.platform_data = &mtx1_led_data,
	90	}
	91	};
	92
95283563 YY	93	static struct mtd_partition mtx1_mtd_partitions[] = {
	94	{
	95	.name = "filesystem",
	96	.size = 0x01C00000,
	97	.offset = 0,
	98	},
	99	{
	100	.name = "yamon",
	101	.size = 0x00100000,
	102	.offset = MTDPART_OFS_APPEND,
	103	.mask_flags = MTD_WRITEABLE,
	104	},
	105	{
	106	.name = "kernel",
	107	.size = 0x002c0000,
	108	.offset = MTDPART_OFS_APPEND,
	109	},
	110	{
	111	.name = "yamon env",
	112	.size = 0x00040000,
	113	.offset = MTDPART_OFS_APPEND,
	114	},
	115	};
	116
	117	static struct physmap_flash_data mtx1_flash_data = {
	118	.width = 4,
	119	.nr_parts = 4,
	120	.parts = mtx1_mtd_partitions,
	121	};
	122
	123	static struct resource mtx1_mtd_resource = {
	124	.start = 0x1e000000,
	125	.end = 0x1fffffff,
	126	.flags = IORESOURCE_MEM,
	127	};
	128
	129	static struct platform_device mtx1_mtd = {
	130	.name = "physmap-flash",
	131	.dev = {
	132	.platform_data = &mtx1_flash_data,
	133	},
	134	.num_resources = 1,
	135	.resource = &mtx1_mtd_resource,
	136	};
	137
7517de34 ML	138	static struct resource alchemy_pci_host_res[] = {
	139	[0] = {
	140	.start = AU1500_PCI_PHYS_ADDR,
	141	.end = AU1500_PCI_PHYS_ADDR + 0xfff,
	142	.flags = IORESOURCE_MEM,
	143	},
	144	};
	145
	146	static int mtx1_pci_idsel(unsigned int devsel, int assert)
	147	{
	148	/* This function is only necessary to support a proprietary Cardbus
	149	* adapter on the mtx-1 "singleboard" variant. It triggers a custom
	150	* logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
	151	*/
	152	if (assert && devsel != 0)
	153	/* Suppress signal to Cardbus */
	154	alchemy_gpio_set_value(1, 0); /* set EXT_IO3 OFF */
	155	else
	156	alchemy_gpio_set_value(1, 1); /* set EXT_IO3 ON */
	157
	158	udelay(1);
	159	return 1;
	160	}
	161
	162	static const char mtx1_irqtab[][5] = {
	163	[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
	164	[1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
	165	[2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
	166	[3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
	167	[4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
	168	[5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
	169	[6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
	170	[7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
	171	};
	172
	173	static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
	174	{
	175	return mtx1_irqtab[slot][pin];
	176	}
	177
	178	static struct alchemy_pci_platdata mtx1_pci_pd = {
	179	.board_map_irq = mtx1_map_pci_irq,
	180	.board_pci_idsel = mtx1_pci_idsel,
	181	.pci_cfg_set = PCI_CONFIG_AEN \| PCI_CONFIG_R2H \| PCI_CONFIG_R1H \|
	182	PCI_CONFIG_CH \|
	183	#if defined(__MIPSEB__)
	184	PCI_CONFIG_SIC_HWA_DAT \| PCI_CONFIG_SM,
	185	#else
	186	0,
	187	#endif
	188	};
	189
	190	static struct platform_device mtx1_pci_host = {
	191	.dev.platform_data = &mtx1_pci_pd,
	192	.name = "alchemy-pci",
	193	.id = 0,
	194	.num_resources = ARRAY_SIZE(alchemy_pci_host_res),
	195	.resource = alchemy_pci_host_res,
	196	};
	197
	198
26c288f8	199	static struct __initdata platform_device * mtx1_devs[] = {
7517de34	200	&mtx1_pci_host,
26c288f8	201	&mtx1_gpio_leds,
f6ed10ab	202	&mtx1_wdt,
95283563 YY	203	&mtx1_button,
95283563 YY	204	&mtx1_mtd,
26c288f8 FF	205	};
26c288f8 FF	206
bf3a1eb8 FF	207	static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
	208	.phy_search_highest_addr = 1,
	209	.phy1_search_mac0 = 1,
	210	};
	211
26c288f8 FF	212	static int __init mtx1_register_devices(void)
26c288f8 FF	213	{
a1b021d3 FF	214	int rc;
a1b021d3 FF	215
bf3a1eb8 FF	216	au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
bf3a1eb8 FF	217
a1b021d3 FF	218	rc = gpio_request(mtx1_gpio_button[0].gpio,
	219	mtx1_gpio_button[0].desc);
	220	if (rc < 0) {
	221	printk(KERN_INFO "mtx1: failed to request %d\n",
	222	mtx1_gpio_button[0].gpio);
	223	goto out;
	224	}
	225	gpio_direction_input(mtx1_gpio_button[0].gpio);
	226	out:
26c288f8 FF	227	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
	228	}
	229
	230	arch_initcall(mtx1_register_devices);