From f539c8a4a7a590e1933a7e21d5771528db1d88b7 Mon Sep 17 00:00:00 2001
From: York Sun <york.sun@nxp.com>
Date: Mon, 6 Mar 2017 09:02:32 -0800
Subject: [PATCH] armv8: ls2080a: Drop early MMU for SPL build
Early MMU improves performance especially on emulators. However, the
early MMU is left enabled after the first stage of SPL boot. Instead
of flushing D-cache and dealing with re-enabling MMU for the second
stage U-Boot, disabling it for SPL build simplifies the process. The
performance penalty is unnoticeable on the real hardware. As of now,
SPL boot is not supported by existing emulators. So this should have
no impact on emulators.
Signed-off-by: York Sun <york.sun@nxp.com>
---
arch/arm/cpu/armv8/fsl-layerscape/spl.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spl.c b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
index 1dabdbb305..73a8680741 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/spl.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/spl.c
@@ -45,9 +45,6 @@ void board_init_f(ulong dummy)
{
/* Clear global data */
memset((void *)gd, 0, sizeof(gd_t));
-#ifdef CONFIG_LS2080A
- arch_cpu_init();
-#endif
board_early_init_f();
timer_init();
#ifdef CONFIG_LS2080A
--
2.39.5