diff --git a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c index 4330b77d5..794e21ef8 100644 --- a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c +++ b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c @@ -91,7 +91,61 @@ int emi_mpu_set_protection(struct emi_region_info_t *region_info) return 0; } +void dump_emi_mpu_regions(void) +{ + unsigned long apc[EMI_MPU_DGROUP_NUM], sa, ea; + + int region, i; + + /* Only dump 8 regions(max: EMI_MPU_REGION_NUM --> 32) */ + for (region = 0; region < 8; ++region) { + for (i = 0; i < EMI_MPU_DGROUP_NUM; ++i) + apc[i] = mmio_read_32(EMI_MPU_APC(region, i)); + sa = mmio_read_32(EMI_MPU_SA(region)); + ea = mmio_read_32(EMI_MPU_EA(region)); + + INFO("region %d:\n", region); + INFO("\tsa:0x%lx, ea:0x%lx, apc0: 0x%lx apc1: 0x%lx\n", + sa, ea, apc[0], apc[1]); + } +} + void emi_mpu_init(void) { - /* TODO: more setting for EMI MPU. */ + struct emi_region_info_t region_info; + + /* SCP DRAM */ + region_info.start = 0x50000000ULL; + region_info.end = 0x51400000ULL; + region_info.region = 2; + SET_ACCESS_PERMISSION(region_info.apc, 1, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + NO_PROTECTION, FORBIDDEN, FORBIDDEN, NO_PROTECTION); + emi_mpu_set_protection(®ion_info); + + /* DSP protect address */ + region_info.start = 0x60000000ULL; /* dram base addr */ + region_info.end = 0x610FFFFFULL; + region_info.region = 3; + SET_ACCESS_PERMISSION(region_info.apc, 1, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION, + FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION); + emi_mpu_set_protection(®ion_info); + + /* Forbidden All */ + region_info.start = 0x40000000ULL; /* dram base addr */ + region_info.end = 0x1FFFF0000ULL; + region_info.region = 4; + SET_ACCESS_PERMISSION(region_info.apc, 1, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, FORBIDDEN, + FORBIDDEN, FORBIDDEN, FORBIDDEN, NO_PROTECTION); + emi_mpu_set_protection(®ion_info); + + dump_emi_mpu_regions(); }