From: Liju-Clr Chen <liju-clr.chen@mediatek.com>
Date: Fri, 11 Nov 2022 01:51:51 +0000 (+0800)
Subject: fix(mt8188): add mmap entry for CPU idle SRAM
X-Git-Tag: baikal/aarch64/sdk5.9~17^2
X-Git-Url: https://git.baikalelectronics.ru/?a=commitdiff_plain;h=32071c0263899e0e7a4b7f2c754e6363547f33b1;p=arm-tf.git

fix(mt8188): add mmap entry for CPU idle SRAM

CPU PM driver accesses CPU idle SRAM during the system suspend
process. The region of CPU idle SRAM needs to be added as mmap entry.
Otherwise, the execption would occur.

BUG=b:244215539
TEST=Test of suspend resume passes.

Signed-off-by: Liju-Clr Chen <liju-clr.chen@mediatek.com>
Change-Id: I5838964fd9cb1b833e4006e2123febb4a4601003
---

diff --git a/plat/mediatek/mt8188/include/platform_def.h b/plat/mediatek/mt8188/include/platform_def.h
index 7a303575a..156a7e28f 100644
--- a/plat/mediatek/mt8188/include/platform_def.h
+++ b/plat/mediatek/mt8188/include/platform_def.h
@@ -178,5 +178,6 @@
 #define PLAT_CPU_PM_B_BUCK_ISO_ID	(6)
 #define PLAT_CPU_PM_ILDO_ID		(6)
 #define CPU_IDLE_SRAM_BASE		(0x11B000)
+#define CPU_IDLE_SRAM_SIZE		(0x1000)
 
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/mediatek/mt8188/plat_mmap.c b/plat/mediatek/mt8188/plat_mmap.c
index 0d4cbe80c..a611d2235 100644
--- a/plat/mediatek/mt8188/plat_mmap.c
+++ b/plat/mediatek/mt8188/plat_mmap.c
@@ -13,6 +13,8 @@ static const mmap_region_t plat_mmap[] = {
 			MT_DEVICE | MT_RW | MT_SECURE),
 	MAP_REGION_FLAT(MTK_DEV_RNG1_BASE, MTK_DEV_RNG1_SIZE,
 			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(CPU_IDLE_SRAM_BASE, CPU_IDLE_SRAM_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
 	{ 0 }
 };
 DECLARE_MTK_MMAP_REGIONS(plat_mmap);