mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 10:43:06 +00:00
10f6508c07
Align microblaze with the other architectures and provide an implementation for flush_dcache_range(). Also, remove the microblaze exception in drivers/core/device.c. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-11-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
122 lines
2.1 KiB
C
122 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2007 Michal Simek
|
|
*
|
|
* Michal SIMEK <monstr@monstr.eu>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <cpu_func.h>
|
|
#include <asm/asm.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/cpuinfo.h>
|
|
#include <asm/global_data.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static void __invalidate_icache(ulong addr, ulong size)
|
|
{
|
|
if (CONFIG_IS_ENABLED(XILINX_MICROBLAZE0_USE_WIC)) {
|
|
for (int i = 0; i < size;
|
|
i += gd_cpuinfo()->icache_line_length) {
|
|
asm volatile (
|
|
"wic %0, r0;"
|
|
"nop;"
|
|
:
|
|
: "r" (addr + i)
|
|
: "memory");
|
|
}
|
|
}
|
|
}
|
|
|
|
void invalidate_icache_all(void)
|
|
{
|
|
__invalidate_icache(0, gd_cpuinfo()->icache_size);
|
|
}
|
|
|
|
static void __flush_dcache(ulong addr, ulong size)
|
|
{
|
|
if (CONFIG_IS_ENABLED(XILINX_MICROBLAZE0_USE_WDC)) {
|
|
for (int i = 0; i < size;
|
|
i += gd_cpuinfo()->dcache_line_length) {
|
|
asm volatile (
|
|
"wdc.flush %0, r0;"
|
|
"nop;"
|
|
:
|
|
: "r" (addr + i)
|
|
: "memory");
|
|
}
|
|
}
|
|
}
|
|
|
|
void flush_dcache_range(unsigned long start, unsigned long end)
|
|
{
|
|
if (start >= end) {
|
|
debug("Invalid dcache range - start: 0x%08lx end: 0x%08lx\n",
|
|
start, end);
|
|
return;
|
|
}
|
|
|
|
__flush_dcache(start, end - start);
|
|
}
|
|
|
|
void flush_dcache_all(void)
|
|
{
|
|
__flush_dcache(0, gd_cpuinfo()->dcache_size);
|
|
}
|
|
|
|
int dcache_status(void)
|
|
{
|
|
int i = 0;
|
|
int mask = 0x80;
|
|
__asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
|
|
/* i&=0x80 */
|
|
__asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
|
|
return i;
|
|
}
|
|
|
|
int icache_status(void)
|
|
{
|
|
int i = 0;
|
|
int mask = 0x20;
|
|
__asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
|
|
/* i&=0x20 */
|
|
__asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
|
|
return i;
|
|
}
|
|
|
|
void icache_enable(void)
|
|
{
|
|
MSRSET(0x20);
|
|
}
|
|
|
|
void icache_disable(void)
|
|
{
|
|
invalidate_icache_all();
|
|
|
|
MSRCLR(0x20);
|
|
}
|
|
|
|
void dcache_enable(void)
|
|
{
|
|
MSRSET(0x80);
|
|
}
|
|
|
|
void dcache_disable(void)
|
|
{
|
|
flush_dcache_all();
|
|
|
|
MSRCLR(0x80);
|
|
}
|
|
|
|
void flush_cache(ulong addr, ulong size)
|
|
{
|
|
__invalidate_icache(addr, size);
|
|
__flush_dcache(addr, size);
|
|
}
|
|
|
|
void flush_cache_all(void)
|
|
{
|
|
invalidate_icache_all();
|
|
flush_dcache_all();
|
|
}
|