MMU tables should be flushed if current code runs with d-cache on. This applies to early MMU tables with SPL boot, and all final MMU tables.
Signed-off-by: York Sun york.sun@nxp.com ---
Changes in v2: None
arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index 800ad62..fcf8a75 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -80,6 +80,13 @@ static inline void early_mmu_setup(void) /* Create early page tables */ setup_pgtables();
+ +#if defined(CONFIG_SPL) || !defined(CONFIG_SPL_BUILD) + /* For SPL RAM boot, cache is enabled. MMU table needs to be flushed */ + flush_dcache_range(gd->arch.tlb_addr, + gd->arch.tlb_addr + gd->arch.tlb_size); +#endif + /* point TTBR to the new table */ set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL) & @@ -184,6 +191,8 @@ static inline void final_mmu_setup(void) /* flush new MMU table */ flush_dcache_range(gd->arch.tlb_addr, gd->arch.tlb_addr + gd->arch.tlb_size); + flush_dcache_range(gd->arch.tlb_emerg, + gd->arch.tlb_emerg + gd->arch.tlb_size);
/* point TTBR to the new table */ set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),