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/*
* 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 separate 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 = µ9_flash_data,
},
.num_resources = 1,
.resource = µ9_flash_resource,
};
static void __init __micro9_register_flash(unsigned int width)
{
micro9_flash_data.width = width;
platform_device_register(µ9_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 __initdata micro9_eth_data = {
.phy_id = 0x1f,
};
static void __init micro9_init_machine(void)
{
ep93xx_init_devices();
ep93xx_register_eth(µ9_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
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