commit c1c2be0da06da69e26dc7d9c0dca6963a28aa7fa
author Allen-KH Cheng <allen-kh.cheng@mediatek.corp-partner.google.com> Mon Sep 12 17:10:24 2022 +0800
committer developer <developer@mediatek.com> Thu Sep 22 19:26:15 2022 +0800
tree 458eb4e8d3e9e3f7cc633ce9935095adc17821e9
parent fcb716f9b84ec828997f59c2466267a65441c238

feat(mt8186): add EMI MPU support for SCP and DSP

1. Enable domain D0 and D3 (SCP) access 0x50000000~0x5109FFFF.
2. Enable domain D4 (DSP & AFE) access 0x60000000~0x610FFFFF.

BUG=b:204229221
TEST=build pass

Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.corp-partner.google.com>
Change-Id: I6a7d2eafaaa7a558829a0d741dfb3307885e3b98

plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.c

diff --git a/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.c b/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.c
index 989ecf1..a183483 100644
--- a/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.c
+++ b/plat/mediatek/mt8186/drivers/emi_mpu/emi_mpu.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -96,5 +96,38 @@
 
 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 = 0x5109FFFFULL;
+	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);
 }