From 22c51855bf79b4ef767f35067472d337858423b3 Mon Sep 17 00:00:00 2001
From: Suresh Gupta <suresh.gupta@nxp.com>
Date: Tue, 29 Aug 2017 19:12:43 +0530
Subject: [PATCH] armv8: fsl-layerscape: Fix final MMU table for QSPI and IFC
For QSPI and IFC addresses execution shouldn't be allowed
when u-boot running from DDR. Revise the MMU final table
to enforce execute-never bits.
Signed-off-by: Suresh Gupta <suresh.gupta@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
---
arch/arm/include/asm/arch-fsl-layerscape/cpu.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h
index c4e5eccd77..3d564d6610 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h
@@ -199,7 +199,8 @@ static struct mm_region final_map[] = {
},
{ CONFIG_SYS_FSL_QSPI_BASE1, CONFIG_SYS_FSL_QSPI_BASE1,
CONFIG_SYS_FSL_QSPI_SIZE1,
- PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_NON_SHARE
+ PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN
},
{ CONFIG_SYS_FSL_QSPI_BASE2, CONFIG_SYS_FSL_QSPI_BASE2,
CONFIG_SYS_FSL_QSPI_SIZE2,
@@ -208,7 +209,8 @@ static struct mm_region final_map[] = {
},
{ CONFIG_SYS_FSL_IFC_BASE2, CONFIG_SYS_FSL_IFC_BASE2,
CONFIG_SYS_FSL_IFC_SIZE2,
- PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE
+ PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN
},
{ CONFIG_SYS_FSL_DCSR_BASE, CONFIG_SYS_FSL_DCSR_BASE,
CONFIG_SYS_FSL_DCSR_SIZE,
--
2.39.5