From 70e21b06425ad6e1e90931333a704a600941cfff Mon Sep 17 00:00:00 2001 From: Ed Swarthout Date: Mon, 28 Mar 2016 16:16:01 -0500 Subject: [PATCH] armv8: LSCH2 early and final mmu needs matching NS attribute When switching between the early and final mmu tables, the stack will get corrupted if the Non-Secure attribute is different. For ls1043a, this issue is currently masked because flush_dcache_all is called before the switch when CONFIG_SYS_DPAA_FMAN is defined. Signed-off-by: Ed Swarthout Reviewed-by: York Sun --- arch/arm/include/asm/arch-fsl-layerscape/cpu.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h index f75faa6ffe..905494232f 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h @@ -157,9 +157,11 @@ static const struct sys_mmu_table early_mmu_table[] = { { CONFIG_SYS_FSL_IFC_BASE, CONFIG_SYS_FSL_IFC_BASE, CONFIG_SYS_FSL_IFC_SIZE, MT_DEVICE_NGNRNE, PTE_BLOCK_NON_SHARE }, { CONFIG_SYS_FSL_DRAM_BASE1, CONFIG_SYS_FSL_DRAM_BASE1, - CONFIG_SYS_FSL_DRAM_SIZE1, MT_NORMAL, PTE_BLOCK_OUTER_SHARE }, + CONFIG_SYS_FSL_DRAM_SIZE1, MT_NORMAL, + PTE_BLOCK_OUTER_SHARE | PTE_BLOCK_NS }, { CONFIG_SYS_FSL_DRAM_BASE2, CONFIG_SYS_FSL_DRAM_BASE2, - CONFIG_SYS_FSL_DRAM_SIZE2, MT_NORMAL, PTE_BLOCK_OUTER_SHARE }, + CONFIG_SYS_FSL_DRAM_SIZE2, MT_NORMAL, + PTE_BLOCK_OUTER_SHARE | PTE_BLOCK_NS }, #endif }; @@ -245,7 +247,8 @@ static const struct sys_mmu_table final_mmu_table[] = { CONFIG_SYS_FSL_QBMAN_SIZE, MT_DEVICE_NGNRNE, PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN }, { CONFIG_SYS_FSL_DRAM_BASE2, CONFIG_SYS_FSL_DRAM_BASE2, - CONFIG_SYS_FSL_DRAM_SIZE2, MT_NORMAL, PTE_BLOCK_OUTER_SHARE }, + CONFIG_SYS_FSL_DRAM_SIZE2, MT_NORMAL, + PTE_BLOCK_OUTER_SHARE | PTE_BLOCK_NS }, { CONFIG_SYS_PCIE1_PHYS_ADDR, CONFIG_SYS_PCIE1_PHYS_ADDR, CONFIG_SYS_PCIE1_PHYS_SIZE, MT_DEVICE_NGNRNE, PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN }, @@ -256,7 +259,8 @@ static const struct sys_mmu_table final_mmu_table[] = { CONFIG_SYS_PCIE3_PHYS_SIZE, MT_DEVICE_NGNRNE, PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN }, { CONFIG_SYS_FSL_DRAM_BASE3, CONFIG_SYS_FSL_DRAM_BASE3, - CONFIG_SYS_FSL_DRAM_SIZE3, MT_NORMAL, PTE_BLOCK_OUTER_SHARE }, + CONFIG_SYS_FSL_DRAM_SIZE3, MT_NORMAL, + PTE_BLOCK_OUTER_SHARE | PTE_BLOCK_NS }, #endif }; #endif