122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
/*
|
||
|
|
* 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>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
|
||
|
|
#include "hardware.h"
|
||
|
|
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
#include <asm/mach/arch.h>
|
||
|
|
|
||
|
|
#include "soc.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 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)
|
||
|
|
{
|
||
|
|
unsigned int width;
|
||
|
|
|
||
|
|
if (machine_is_micro9())
|
||
|
|
width = 4;
|
||
|
|
else if (machine_is_micro9m() || machine_is_micro9s())
|
||
|
|
width = micro9_detect_bootwidth();
|
||
|
|
else
|
||
|
|
width = 0;
|
||
|
|
|
||
|
|
if (width)
|
||
|
|
ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
* 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> */
|
||
|
|
.atag_offset = 0x100,
|
||
|
|
.map_io = ep93xx_map_io,
|
||
|
|
.init_irq = ep93xx_init_irq,
|
||
|
|
.init_time = ep93xx_timer_init,
|
||
|
|
.init_machine = micro9_init_machine,
|
||
|
|
.restart = ep93xx_restart,
|
||
|
|
MACHINE_END
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_MACH_MICRO9M
|
||
|
|
MACHINE_START(MICRO9M, "Contec Micro9-Mid")
|
||
|
|
/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
|
||
|
|
.atag_offset = 0x100,
|
||
|
|
.map_io = ep93xx_map_io,
|
||
|
|
.init_irq = ep93xx_init_irq,
|
||
|
|
.init_time = ep93xx_timer_init,
|
||
|
|
.init_machine = micro9_init_machine,
|
||
|
|
.restart = ep93xx_restart,
|
||
|
|
MACHINE_END
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_MACH_MICRO9L
|
||
|
|
MACHINE_START(MICRO9L, "Contec Micro9-Lite")
|
||
|
|
/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
|
||
|
|
.atag_offset = 0x100,
|
||
|
|
.map_io = ep93xx_map_io,
|
||
|
|
.init_irq = ep93xx_init_irq,
|
||
|
|
.init_time = ep93xx_timer_init,
|
||
|
|
.init_machine = micro9_init_machine,
|
||
|
|
.restart = ep93xx_restart,
|
||
|
|
MACHINE_END
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_MACH_MICRO9S
|
||
|
|
MACHINE_START(MICRO9S, "Contec Micro9-Slim")
|
||
|
|
/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
|
||
|
|
.atag_offset = 0x100,
|
||
|
|
.map_io = ep93xx_map_io,
|
||
|
|
.init_irq = ep93xx_init_irq,
|
||
|
|
.init_time = ep93xx_timer_init,
|
||
|
|
.init_machine = micro9_init_machine,
|
||
|
|
.restart = ep93xx_restart,
|
||
|
|
MACHINE_END
|
||
|
|
#endif
|