[deliverable/linux.git] / arch / arm / mach-ep93xx / micro9.c

/*
 *  linux/arch/arm/mach-ep93xx/micro9.c
 *
 * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
 *                    Manfred Gruber <m.gruber@tirol.com>
 * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
 *                    Hubert Feurstein <hubert.feurstein@contec.at>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/io.h>

#include <mach/hardware.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>


/*************************************************************************
 * Micro9 NOR Flash
 *
 * Micro9-High has up to 64MB of 32-bit flash on CS1
 * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
 * Micro9-Lite uses a seperate MTD map driver for flash support
 * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
 *************************************************************************/
static struct physmap_flash_data micro9_flash_data;

static struct resource micro9_flash_resource = {
	.start		= EP93XX_CS1_PHYS_BASE,
	.end		= EP93XX_CS1_PHYS_BASE + SZ_64M - 1,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device micro9_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &micro9_flash_data,
	},
	.num_resources	= 1,
	.resource	= &micro9_flash_resource,
};

static void __init __micro9_register_flash(unsigned int width)
{
	micro9_flash_data.width = width;

	platform_device_register(&micro9_flash);
}

static unsigned int __init micro9_detect_bootwidth(void)
{
	u32 v;

	/* Detect the bus width of the external flash memory */
	v = __raw_readl(EP93XX_SYSCON_SYSCFG);
	if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
		return 4; /* 32-bit */
	else
		return 2; /* 16-bit */
}

static void __init micro9_register_flash(void)
{
	if (machine_is_micro9())
		__micro9_register_flash(4);
	else if (machine_is_micro9m() || machine_is_micro9s())
		__micro9_register_flash(micro9_detect_bootwidth());
}


/*************************************************************************
 * Micro9 Ethernet
 *************************************************************************/
static struct ep93xx_eth_data micro9_eth_data = {
	.phy_id		= 0x1f,
};


static void __init micro9_init_machine(void)
{
	ep93xx_init_devices();
	ep93xx_register_eth(&micro9_eth_data, 1);
	micro9_register_flash();
}


#ifdef CONFIG_MACH_MICRO9H
MACHINE_START(MICRO9, "Contec Micro9-High")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.phys_io	= EP93XX_APB_PHYS_BASE,
	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	.boot_params	= EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.timer		= &ep93xx_timer,
	.init_machine	= micro9_init_machine,
MACHINE_END
#endif

#ifdef CONFIG_MACH_MICRO9M
MACHINE_START(MICRO9M, "Contec Micro9-Mid")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.phys_io	= EP93XX_APB_PHYS_BASE,
	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	.boot_params	= EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.timer		= &ep93xx_timer,
	.init_machine	= micro9_init_machine,
MACHINE_END
#endif

#ifdef CONFIG_MACH_MICRO9L
MACHINE_START(MICRO9L, "Contec Micro9-Lite")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.phys_io	= EP93XX_APB_PHYS_BASE,
	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	.boot_params	= EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.timer		= &ep93xx_timer,
	.init_machine	= micro9_init_machine,
MACHINE_END
#endif

#ifdef CONFIG_MACH_MICRO9S
MACHINE_START(MICRO9S, "Contec Micro9-Slim")
	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	.phys_io	= EP93XX_APB_PHYS_BASE,
	.io_pg_offst	= ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	.boot_params	= EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.timer		= &ep93xx_timer,
	.init_machine	= micro9_init_machine,
MACHINE_END
#endif
Commit	Line	Data
d941caa2 MG	1	/*
	2	* linux/arch/arm/mach-ep93xx/micro9.c
	3	*
	4	* Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
94150095 HF	5	* Manfred Gruber <m.gruber@tirol.com>
	6	* Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
	7	* Hubert Feurstein <hubert.feurstein@contec.at>
d941caa2 MG	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*/
	13
d941caa2	14	#include <linux/kernel.h>
583ddafe	15	#include <linux/init.h>
d941caa2	16	#include <linux/platform_device.h>
d941caa2	17	#include <linux/mtd/physmap.h>
d525753b	18	#include <linux/io.h>
d941caa2	19
a09e64fb	20	#include <mach/hardware.h>
d941caa2	21
d941caa2	22	#include <asm/mach-types.h>
583ddafe HS	23	#include <asm/mach/arch.h>
583ddafe HS	24
d941caa2	25
14636005 HF	26	/*************************************************************************
	27	* Micro9 NOR Flash
	28	*
	29	* Micro9-High has up to 64MB of 32-bit flash on CS1
	30	* Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
	31	* Micro9-Lite uses a seperate MTD map driver for flash support
7232344d	32	* Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
14636005 HF	33	*************************************************************************/
14636005 HF	34	static struct physmap_flash_data micro9_flash_data;
d941caa2	35
14636005	36	static struct resource micro9_flash_resource = {
e48f3fa3 HS	37	.start = EP93XX_CS1_PHYS_BASE,
	38	.end = EP93XX_CS1_PHYS_BASE + SZ_64M - 1,
	39	.flags = IORESOURCE_MEM,
d941caa2 MG	40	};
d941caa2 MG	41
14636005	42	static struct platform_device micro9_flash = {
e48f3fa3 HS	43	.name = "physmap-flash",
	44	.id = 0,
	45	.dev = {
14636005	46	.platform_data = &micro9_flash_data,
e48f3fa3 HS	47	},
e48f3fa3 HS	48	.num_resources = 1,
14636005	49	.resource = &micro9_flash_resource,
d941caa2 MG	50	};
d941caa2 MG	51
14636005 HF	52	static void __init __micro9_register_flash(unsigned int width)
	53	{
	54	micro9_flash_data.width = width;
	55
	56	platform_device_register(&micro9_flash);
	57	}
	58
	59	static unsigned int __init micro9_detect_bootwidth(void)
d941caa2	60	{
14636005 HF	61	u32 v;
	62
	63	/* Detect the bus width of the external flash memory */
	64	v = __raw_readl(EP93XX_SYSCON_SYSCFG);
	65	if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
	66	return 4; /* 32-bit */
	67	else
	68	return 2; /* 16-bit */
d941caa2 MG	69	}
d941caa2 MG	70
14636005 HF	71	static void __init micro9_register_flash(void)
	72	{
	73	if (machine_is_micro9())
	74	__micro9_register_flash(4);
7232344d	75	else if (machine_is_micro9m() \|\| machine_is_micro9s())
14636005 HF	76	__micro9_register_flash(micro9_detect_bootwidth());
	77	}
	78
	79
	80	/*************************************************************************
	81	* Micro9 Ethernet
	82	*************************************************************************/
	83	static struct ep93xx_eth_data micro9_eth_data = {
	84	.phy_id = 0x1f,
	85	};
	86
	87
	88	static void __init micro9_init_machine(void)
d941caa2	89	{
e48f3fa3	90	ep93xx_init_devices();
14636005 HF	91	ep93xx_register_eth(&micro9_eth_data, 1);
14636005 HF	92	micro9_register_flash();
d941caa2 MG	93	}
d941caa2 MG	94
14636005 HF	95
	96	#ifdef CONFIG_MACH_MICRO9H
	97	MACHINE_START(MICRO9, "Contec Micro9-High")
94150095	98	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
e48f3fa3 HS	99	.phys_io = EP93XX_APB_PHYS_BASE,
	100	.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	101	.boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
	102	.map_io = ep93xx_map_io,
	103	.init_irq = ep93xx_init_irq,
	104	.timer = &ep93xx_timer,
14636005	105	.init_machine = micro9_init_machine,
d941caa2 MG	106	MACHINE_END
	107	#endif
	108
d941caa2	109	#ifdef CONFIG_MACH_MICRO9M
14636005	110	MACHINE_START(MICRO9M, "Contec Micro9-Mid")
94150095	111	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
e48f3fa3 HS	112	.phys_io = EP93XX_APB_PHYS_BASE,
e48f3fa3 HS	113	.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
14636005	114	.boot_params = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
e48f3fa3 HS	115	.map_io = ep93xx_map_io,
	116	.init_irq = ep93xx_init_irq,
	117	.timer = &ep93xx_timer,
14636005	118	.init_machine = micro9_init_machine,
d941caa2 MG	119	MACHINE_END
	120	#endif
	121
d941caa2	122	#ifdef CONFIG_MACH_MICRO9L
14636005	123	MACHINE_START(MICRO9L, "Contec Micro9-Lite")
94150095	124	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
e48f3fa3 HS	125	.phys_io = EP93XX_APB_PHYS_BASE,
	126	.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	127	.boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
	128	.map_io = ep93xx_map_io,
	129	.init_irq = ep93xx_init_irq,
	130	.timer = &ep93xx_timer,
14636005	131	.init_machine = micro9_init_machine,
d941caa2 MG	132	MACHINE_END
d941caa2 MG	133	#endif
7232344d HF	134
	135	#ifdef CONFIG_MACH_MICRO9S
	136	MACHINE_START(MICRO9S, "Contec Micro9-Slim")
	137	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
	138	.phys_io = EP93XX_APB_PHYS_BASE,
	139	.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
	140	.boot_params = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
	141	.map_io = ep93xx_map_io,
	142	.init_irq = ep93xx_init_irq,
	143	.timer = &ep93xx_timer,
	144	.init_machine = micro9_init_machine,
	145	MACHINE_END
	146	#endif