diff mbox series

[v2,3/5] arm: qemu: implement enable_caches()

Message ID 20200611081707.195994-4-ardb@kernel.org
State Accepted
Commit 3fa914af821496bde52d8be510224f5e69c9c8b9
Headers show
Series Fixes for running U-boot under QEMU/KVM | expand

Commit Message

Ard Biesheuvel June 11, 2020, 8:17 a.m. UTC
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 at kernel.org>
---
 board/emulation/qemu-arm/qemu-arm.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c
index 69e8ef46f1f5..1b0d543b93c1 100644
--- a/board/emulation/qemu-arm/qemu-arm.c
+++ b/board/emulation/qemu-arm/qemu-arm.c
@@ -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>