feat(mt8188): add support for SMC from OP-TEE
- Add MTK_SIP_SMC_FROM_S_EL1_TABLE to handle the SMC call from OP-TEE.
- Register optee for EMI MPU.
Change-Id: Ie94542f0e3966c4c25f2b7233b9355d41f8f36a5
diff --git a/plat/mediatek/drivers/emi_mpu/emi_mpu.h b/plat/mediatek/drivers/emi_mpu/emi_mpu.h
index 9c1ebb5..ef7134c 100644
--- a/plat/mediatek/drivers/emi_mpu/emi_mpu.h
+++ b/plat/mediatek/drivers/emi_mpu/emi_mpu.h
@@ -57,9 +57,18 @@
unsigned int apc[EMI_MPU_DGROUP_NUM];
};
+enum MPU_REQ_ORIGIN_ZONE_ID {
+ MPU_REQ_ORIGIN_TEE_ZONE_SVP = 0,
+ MPU_REQ_ORIGIN_TEE_ZONE_TUI = 1,
+ MPU_REQ_ORIGIN_TEE_ZONE_WFD = 2,
+ MPU_REQ_ORIGIN_TEE_ZONE_MAX = 3,
+ MPU_REQ_ORIGIN_ZONE_INVALID = 0x7FFFFFFF,
+};
+
int emi_mpu_init(void);
+int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
+ uint64_t zone_info);
int emi_mpu_set_protection(struct emi_region_info_t *region_info);
void set_emi_mpu_regions(void);
int set_apu_emi_mpu_region(void);
-
#endif
diff --git a/plat/mediatek/drivers/emi_mpu/emi_mpu_common.c b/plat/mediatek/drivers/emi_mpu/emi_mpu_common.c
index bf77791..7eeadec 100644
--- a/plat/mediatek/drivers/emi_mpu/emi_mpu_common.c
+++ b/plat/mediatek/drivers/emi_mpu/emi_mpu_common.c
@@ -7,6 +7,8 @@
#include <string.h>
#include <common/debug.h>
#include <lib/mmio.h>
+#include <smccc_helpers.h>
+
#include <emi_mpu.h>
#include <lib/mtk_init/mtk_init.h>
#include <mtk_sip_svc.h>
@@ -116,7 +118,10 @@
u_register_t x3, u_register_t x4,
void *handle, struct smccc_res *smccc_ret)
{
- /* TODO: implement emi mpu handler */
+ int ret;
+
+ ret = emi_mpu_optee_handler(x1, x2, x3);
+ SMC_RET2(handle, ret, 0U);
return 0;
}
diff --git a/plat/mediatek/drivers/emi_mpu/mt8188/emi_mpu.c b/plat/mediatek/drivers/emi_mpu/mt8188/emi_mpu.c
index 59ab315..ae1b7ef 100644
--- a/plat/mediatek/drivers/emi_mpu/mt8188/emi_mpu.c
+++ b/plat/mediatek/drivers/emi_mpu/mt8188/emi_mpu.c
@@ -6,6 +6,9 @@
#include <common/debug.h>
#include <emi_mpu.h>
+#include <mtk_sip_svc.h>
+
+#define MPU_PHYSICAL_ADDR_SHIFT_BITS (16)
void set_emi_mpu_regions(void)
{
@@ -29,3 +32,43 @@
return emi_mpu_set_protection(®ion_info);
}
+
+static inline uint64_t get_decoded_phys_addr(uint64_t addr)
+{
+ return (addr << MPU_PHYSICAL_ADDR_SHIFT_BITS);
+}
+
+static inline uint32_t get_decoded_zone_id(uint32_t info)
+{
+ return ((info & 0xFFFF0000) >> MPU_PHYSICAL_ADDR_SHIFT_BITS);
+}
+
+int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
+ uint64_t zone_info)
+{
+ uint64_t phys_addr = get_decoded_phys_addr(encoded_addr);
+ struct emi_region_info_t region_info;
+ enum MPU_REQ_ORIGIN_ZONE_ID zone_id = get_decoded_zone_id(zone_info);
+
+ INFO("encoded_addr = 0x%lx, zone_size = 0x%lx, zone_info = 0x%lx\n",
+ encoded_addr, zone_size, zone_info);
+
+ if (zone_id != MPU_REQ_ORIGIN_TEE_ZONE_SVP) {
+ ERROR("Invalid param %s, %d\n", __func__, __LINE__);
+ return MTK_SIP_E_INVALID_PARAM;
+ }
+
+ /* SVP DRAM */
+ region_info.start = phys_addr;
+ region_info.end = phys_addr + zone_size;
+ 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, SEC_RW);
+
+ emi_mpu_set_protection(®ion_info);
+
+ return 0;
+}
\ No newline at end of file