mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 07:57:21 +00:00
01abae4d04
Withd53ecad92fsome unused interrupt related code was removed. However all of these options are currently unused. Rather than migrate some of these options to Kconfig we just remove the code in question. The only related code changes here are that in some cases we use CONFIG_STACKSIZE in non-IRQ related context. In these cases we rename and move the value local to the code in question. Fixes:d53ecad92f("Merge branch 'master' of git://git.denx.de/u-boot-sunxi") Signed-off-by: Tom Rini <trini@konsulko.com>
64 lines
1.1 KiB
C
64 lines
1.1 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Alex Zuepke <azu@sysgo.de>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
/*
|
|
* CPU specific code
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <asm/system.h>
|
|
#include <asm/io.h>
|
|
|
|
static void cache_flush(void);
|
|
|
|
int cleanup_before_linux (void)
|
|
{
|
|
/*
|
|
* this function is called just before we call linux
|
|
* it prepares the processor for linux
|
|
*
|
|
* just disable everything that can disturb booting linux
|
|
*/
|
|
|
|
disable_interrupts ();
|
|
|
|
/* turn off I-cache */
|
|
icache_disable();
|
|
dcache_disable();
|
|
|
|
/* flush I-cache */
|
|
cache_flush();
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* flush I/D-cache */
|
|
static void cache_flush (void)
|
|
{
|
|
unsigned long i = 0;
|
|
|
|
asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (i));
|
|
}
|
|
|
|
#define RST_BASE 0x90030000
|
|
#define RSRR 0x00
|
|
#define RCSR 0x04
|
|
|
|
__attribute__((noreturn)) void reset_cpu(ulong addr __attribute__((unused)))
|
|
{
|
|
/* repeat endlessly */
|
|
while (1) {
|
|
writel(0, RST_BASE + RCSR);
|
|
writel(1, RST_BASE + RSRR);
|
|
}
|
|
}
|