mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
c836c90e27
This patch allows bypassing most of legacy initialization when booting an S3C64xx-based board using device tree, by adding conditional checks for DT presence to initcalls which are no longer necessary when booting with DT.. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
/* linux/arch/arm/mach-s3c64xx/cpu.c
|
|
*
|
|
* Copyright 2009 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
* http://armlinux.simtec.co.uk/
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* NOTE: Code in this file is not used when booting with Device Tree support.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/list.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/init.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/io.h>
|
|
#include <linux/device.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/of.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/irq.h>
|
|
|
|
#include <plat/cpu-freq.h>
|
|
#include <plat/regs-serial.h>
|
|
#include <mach/regs-clock.h>
|
|
|
|
#include <plat/cpu.h>
|
|
#include <plat/devs.h>
|
|
#include <plat/clock.h>
|
|
#include <plat/sdhci.h>
|
|
#include <plat/iic-core.h>
|
|
#include <plat/onenand-core.h>
|
|
|
|
#include "common.h"
|
|
|
|
void __init s3c6400_map_io(void)
|
|
{
|
|
/* setup SDHCI */
|
|
|
|
s3c6400_default_sdhci0();
|
|
s3c6400_default_sdhci1();
|
|
s3c6400_default_sdhci2();
|
|
|
|
/* the i2c devices are directly compatible with s3c2440 */
|
|
s3c_i2c0_setname("s3c2440-i2c");
|
|
|
|
s3c_device_nand.name = "s3c6400-nand";
|
|
|
|
s3c_onenand_setname("s3c6400-onenand");
|
|
s3c64xx_onenand1_setname("s3c6400-onenand");
|
|
}
|
|
|
|
void __init s3c6400_init_irq(void)
|
|
{
|
|
/* VIC0 does not have IRQS 5..7,
|
|
* VIC1 is fully populated. */
|
|
s3c64xx_init_irq(~0 & ~(0xf << 5), ~0);
|
|
}
|
|
|
|
static struct bus_type s3c6400_subsys = {
|
|
.name = "s3c6400-core",
|
|
.dev_name = "s3c6400-core",
|
|
};
|
|
|
|
static struct device s3c6400_dev = {
|
|
.bus = &s3c6400_subsys,
|
|
};
|
|
|
|
static int __init s3c6400_core_init(void)
|
|
{
|
|
/* Not applicable when using DT. */
|
|
if (of_have_populated_dt())
|
|
return 0;
|
|
|
|
return subsys_system_register(&s3c6400_subsys, NULL);
|
|
}
|
|
|
|
core_initcall(s3c6400_core_init);
|
|
|
|
int __init s3c6400_init(void)
|
|
{
|
|
printk("S3C6400: Initialising architecture\n");
|
|
|
|
return device_register(&s3c6400_dev);
|
|
}
|