commit dfc61e0cbaf815ca7239683e3c89022c847e1187
author developer <developer@mediatek.com> Mon Nov 15 18:08:10 2021 +0800
committer Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com> Mon Dec 06 15:29:08 2021 +0800
tree 90dd78538bdf45081d8a291514f36ac70250fde1
parent fe2308b0edf377250057fb06ad304842d2e8af2b

feat(plat/mediatek/mt8195): add EMI MPU surppot for SCP and DSP

1. Enable domain D0 and D3 (SCP) access 0x50000000~0x51400000.
2. Enable domain D4 (DSP & AFE) access 0x60000000~0x610FFFFF.

BUG=b:204347737
TEST=build pass

Change-Id: I7c9f8490b8898008ba6844c34c9e80caa6066cbc

plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c

diff --git a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c
index 2bb73cb..794e21e 100644
--- a/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c
+++ b/plat/mediatek/mt8195/drivers/emi_mpu/emi_mpu.c
@@ -112,5 +112,40 @@
 
 void emi_mpu_init(void)
 {
+	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(&region_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(&region_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(&region_info);
+
 	dump_emi_mpu_regions();
 }