[U-Boot] [PATCH 6/6] arm: mvebu: Don't enable d-cache on A375

Stefan Roese sr at denx.de
Tue Mar 15 17:35:18 CET 2016


Armada 375 still has some problems with d-cache enabled in the ethernet
driver (mvpp2). So lets keep the d-cache disabled until this is solved.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Luka Perkov <luka.perkov at sartura.hr>
---
 arch/arm/mach-mvebu/cpu.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c
index 9913802..fd66f59 100644
--- a/arch/arm/mach-mvebu/cpu.c
+++ b/arch/arm/mach-mvebu/cpu.c
@@ -536,8 +536,15 @@ void enable_caches(void)
 	/* Avoid problem with e.g. neta ethernet driver */
 	invalidate_dcache_all();
 
-	/* Enable D-cache. I-cache is already enabled in start.S */
-	dcache_enable();
+	/*
+	 * Armada 375 still has some problems with d-cache enabled in the
+	 * ethernet driver (mvpp2). So lets keep the d-cache disabled
+	 * until this is solved.
+	 */
+	if (mvebu_soc_family() != MVEBU_SOC_A375) {
+		/* Enable D-cache. I-cache is already enabled in start.S */
+		dcache_enable();
+	}
 }
 
 void v7_outer_cache_enable(void)
-- 
2.7.3



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