1/*
  2 *  linux/arch/arm/mach-ep93xx/micro9.c
  3 *
  4 * Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
  5 *                    Manfred Gruber <m.gruber@tirol.com>
  6 * Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
  7 *                    Hubert Feurstein <hubert.feurstein@contec.at>
  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
 14#include <linux/kernel.h>
 15#include <linux/init.h>
 16#include <linux/platform_device.h>
 17#include <linux/io.h>
 18
 19#include <mach/hardware.h>
 20
 21#include <asm/mach-types.h>
 22#include <asm/mach/arch.h>
 23
 24
 25/*************************************************************************
 26 * Micro9 NOR Flash
 27 *
 28 * Micro9-High has up to 64MB of 32-bit flash on CS1
 29 * Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
 30 * Micro9-Lite uses a separate MTD map driver for flash support
 31 * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
 32 *************************************************************************/
 33static unsigned int __init micro9_detect_bootwidth(void)
 34{
 35	u32 v;
 36
 37	/* Detect the bus width of the external flash memory */
 38	v = __raw_readl(EP93XX_SYSCON_SYSCFG);
 39	if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
 40		return 4; /* 32-bit */
 41	else
 42		return 2; /* 16-bit */
 43}
 44
 45static void __init micro9_register_flash(void)
 46{
 47	unsigned int width;
 48
 49	if (machine_is_micro9())
 50		width = 4;
 51	else if (machine_is_micro9m() || machine_is_micro9s())
 52		width = micro9_detect_bootwidth();
 53	else
 54		width = 0;
 55
 56	if (width)
 57		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
 58}
 59
 60
 61/*************************************************************************
 62 * Micro9 Ethernet
 63 *************************************************************************/
 64static struct ep93xx_eth_data __initdata micro9_eth_data = {
 65	.phy_id		= 0x1f,
 66};
 67
 68
 69static void __init micro9_init_machine(void)
 70{
 71	ep93xx_init_devices();
 72	ep93xx_register_eth(&micro9_eth_data, 1);
 73	micro9_register_flash();
 74}
 75
 76
 77#ifdef CONFIG_MACH_MICRO9H
 78MACHINE_START(MICRO9, "Contec Micro9-High")
 79	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
 80	.boot_params	= EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
 81	.map_io		= ep93xx_map_io,
 82	.init_irq	= ep93xx_init_irq,
 83	.timer		= &ep93xx_timer,
 84	.init_machine	= micro9_init_machine,
 85MACHINE_END
 86#endif
 87
 88#ifdef CONFIG_MACH_MICRO9M
 89MACHINE_START(MICRO9M, "Contec Micro9-Mid")
 90	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
 91	.boot_params	= EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
 92	.map_io		= ep93xx_map_io,
 93	.init_irq	= ep93xx_init_irq,
 94	.timer		= &ep93xx_timer,
 95	.init_machine	= micro9_init_machine,
 96MACHINE_END
 97#endif
 98
 99#ifdef CONFIG_MACH_MICRO9L
100MACHINE_START(MICRO9L, "Contec Micro9-Lite")
101	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
102	.boot_params	= EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
103	.map_io		= ep93xx_map_io,
104	.init_irq	= ep93xx_init_irq,
105	.timer		= &ep93xx_timer,
106	.init_machine	= micro9_init_machine,
107MACHINE_END
108#endif
109
110#ifdef CONFIG_MACH_MICRO9S
111MACHINE_START(MICRO9S, "Contec Micro9-Slim")
112	/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
113	.boot_params	= EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
114	.map_io		= ep93xx_map_io,
115	.init_irq	= ep93xx_init_irq,
116	.timer		= &ep93xx_timer,
117	.init_machine	= micro9_init_machine,
118MACHINE_END
119#endif