mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 17:25:03 +07:00
d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
126 lines
3.3 KiB
C
126 lines
3.3 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,
|
|
.init_late = ep93xx_init_late,
|
|
.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,
|
|
.init_late = ep93xx_init_late,
|
|
.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,
|
|
.init_late = ep93xx_init_late,
|
|
.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,
|
|
.init_late = ep93xx_init_late,
|
|
.restart = ep93xx_restart,
|
|
MACHINE_END
|
|
#endif
|