[U-Boot] [PATCH] ARM: cache-cp15: Make sure EAE is not enabled

[Tomeu Vizoso]

This could happen if we are being chainloaded by Coreboot with LPAE
enabled, as is the case on the Tegra-based Chromebooks.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso at collabora.com>
---
 arch/arm/lib/cache-cp15.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
index 0291afa..78fb429 100644
--- a/arch/arm/lib/cache-cp15.c
+++ b/arch/arm/lib/cache-cp15.c
@@ -96,6 +96,10 @@ static inline void mmu_setup(void)
 		dram_bank_mmu_setup(i);
 	}
 
+	/* Make sure EAE is not enabled */
+	asm volatile("mcr p15, 0, %0, c2, c0, 2"
+		     : : "r" (0) : "memory");
+
 	/* Copy the page table address to cp15 */
 	asm volatile("mcr p15, 0, %0, c2, c0, 0"
 		     : : "r" (gd->arch.tlb_addr) : "memory");
-- 
2.3.6