arm: exynos: Map iRAM APM area for Exynos850 SoC

This iRAM APM area is needed for I3C access to PMIC via APM block.
Without this mapping any access to APM iRAM leads to "Synchronous Abort"
exception.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/arch/arm/mach-exynos/mmu-arm64.c b/arch/arm/mach-exynos/mmu-arm64.c
index 30e522804fbf379822f2af34a8cc8f1f92a36816..4c154950f73b0d92a90cf1b3b4139b425c38b78d 100644 (file)
--- a/arch/arm/mach-exynos/mmu-arm64.c
+++ b/arch/arm/mach-exynos/mmu-arm64.c
@@ -101,6 +101,14 @@ struct mm_region *mem_map = exynos7880_mem_map;
 
 static struct mm_region exynos850_mem_map[] = {
        {
+               /* iRAM */
+               .virt = 0x02000000UL,
+               .phys = 0x02000000UL,
+               .size = SZ_2M,
+               .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
+                        PTE_BLOCK_NON_SHARE |
+                        PTE_BLOCK_PXN | PTE_BLOCK_UXN
+       }, {
                /* Peripheral block */
                .virt = 0x10000000UL,
                .phys = 0x10000000UL,