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arm: qemu: implement enable_caches()

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Add an override for enable_caches to enable the I and D caches, along
with the cached 1:1 mapping of all of DRAM. This is needed for running
U-Boot under virtualization with QEMU/kvm.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Ard Biesheuvel 2020-07-07 12:07:09 +02:00 committed by Tom Rini
parent 6a690c47ce
commit 3fa914af82
1 changed files with 7 additions and 0 deletions
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7
board/emulation/qemu-arm/qemu-arm.c
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@ -4,6 +4,7 @@
*/
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <fdtdec.h>
#include <init.h>
@ -94,6 +95,12 @@ void *board_fdt_blob_setup(void)
return (void *)CONFIG_SYS_SDRAM_BASE;
}
void enable_caches(void)
{
icache_enable();
dcache_enable();
}
#if defined(CONFIG_EFI_RNG_PROTOCOL)
#include <efi_loader.h>
#include <efi_rng.h>