[S] Change in coreboot[main]: soc/mediatek/mt8196: Set mcupm reserved sram to non-cacheable

[Jarried Lin (Code Review)]

Jarried Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/86159?usp=email )

Change subject: soc/mediatek/mt8196: Set mcupm reserved sram to non-cacheable
......................................................................

soc/mediatek/mt8196: Set mcupm reserved sram to non-cacheable

TEST=Build pass, boot ok.
Check MMU List by CVD (Codeviser):
0x00113000--0x00123FFF  = I:non-cacheable O:non-cacheable
BUG=b:390334489

Change-Id: I886effd59006e5ad4bfe5bdbc14f057520304835
Signed-off-by: Jarried Lin 
---
M src/soc/mediatek/common/include/soc/mmu_operations.h
M src/soc/mediatek/common/mmu_operations.c
M src/soc/mediatek/mt8196/Makefile.mk
A src/soc/mediatek/mt8196/mmu_cmops.c
4 files changed, 15 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/59/86159/1

diff --git a/src/soc/mediatek/common/include/soc/mmu_operations.h b/src/soc/mediatek/common/include/soc/mmu_operations.h
index 9c69447..7721e05 100644
--- a/src/soc/mediatek/common/include/soc/mmu_operations.h
+++ b/src/soc/mediatek/common/include/soc/mmu_operations.h
@@ -18,6 +18,7 @@

void mtk_soc_after_dram(void);
 void mtk_soc_disable_l2c_sram(void);
+void mtk_soc_mcufw_reserved(void);

void mtk_mmu_init(void);
 void mtk_mmu_after_dram(void);
diff --git a/src/soc/mediatek/common/mmu_operations.c b/src/soc/mediatek/common/mmu_operations.c
index be216f6..32ebea0 100644
--- a/src/soc/mediatek/common/mmu_operations.c
+++ b/src/soc/mediatek/common/mmu_operations.c
@@ -6,6 +6,7 @@
 #include <soc/mmu_operations.h>

__weak void mtk_soc_after_dram(void) { /* do nothing */ }
+__weak void mtk_soc_mcufw_reserved(void) { /* do nothing */ }

void mtk_mmu_init(void)
 {
@@ -44,6 +45,7 @@
    mmu_config_range(_dram, (uintptr_t)sdram_size(), NONSECURE_CACHED_MEM);

mtk_soc_after_dram();
+	mtk_soc_mcufw_reserved();
 }

void mtk_mmu_disable_l2c_sram(void)
diff --git a/src/soc/mediatek/mt8196/Makefile.mk b/src/soc/mediatek/mt8196/Makefile.mk
index 4cf1660..cacb7da 100644
--- a/src/soc/mediatek/mt8196/Makefile.mk
+++ b/src/soc/mediatek/mt8196/Makefile.mk
@@ -37,7 +37,7 @@
 romstage-y += modem_power_ctrl.c
 romstage-y += ../common/memory.c memory.c
 romstage-y += ../common/memory_test.c
-romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c
+romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c mmu_cmops.c
 romstage-y += ../common/mt6316.c mt6316.c
 romstage-y += ../common/mt6363.c mt6363.c
 romstage-y += ../common/mt6373.c mt6373.c
diff --git a/src/soc/mediatek/mt8196/mmu_cmops.c b/src/soc/mediatek/mt8196/mmu_cmops.c
new file mode 100644
index 0000000..8de470f
--- /dev/null
+++ b/src/soc/mediatek/mt8196/mmu_cmops.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/symbols.h>
+#include <soc/mmu_operations.h>
+
+/* mtk_soc_mcufw_reserved set mcufw_reserved to non-cachable */
+void mtk_soc_mcufw_reserved(void)
+{
+	mmu_config_range(_mcufw_reserved, REGION_SIZE(mcufw_reserved),
+			 NONSECURE_UNCACHED_MEM);
+}