diff options
| author | Rex-BC Chen <rex-bc.chen@mediatek.com> | 2022-06-15 11:49:16 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-07-13 10:41:50 +0000 |
| commit | 29f1866e9592bd3bc2d9ec25039a732bfa30b5fa (patch) | |
| tree | ee859ca0fe03050fee4c8abf187c90bb4fc9245f /src/soc/mediatek | |
| parent | f916b3cd8e1c8cebd323f8f9bbaac423d740b3ae (diff) | |
soc/mediatek/mt8188: Enable mmu operation for L2C SRAM and DMA
- Turn off L2C SRAM and reconfigure as L2 cache:
Mediatek SoC uses part of the L2 cache as SRAM before DRAM is ready.
After DRAM is ready, we should invoke disable_l2c_sram to reconfigure
the L2C SRAM as L2 cache.
- Configure DMA buffer in DRAM:
Set DRAM DMA to be non-cacheable to load blob correctly.
TEST=build pass
BUG=b:233720142
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: I10f1cb8c62dfa78f59a4a5ea6087609668a0c2aa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65753
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek')
| -rw-r--r-- | src/soc/mediatek/mt8188/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8188/soc.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8188/Makefile.inc b/src/soc/mediatek/mt8188/Makefile.inc index 8b50003d8d..a7458b4c4e 100644 --- a/src/soc/mediatek/mt8188/Makefile.inc +++ b/src/soc/mediatek/mt8188/Makefile.inc @@ -14,8 +14,10 @@ bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c romstage-y += ../common/cbmem.c romstage-y += emi.c +romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c ramstage-y += emi.c +ramstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c ramstage-y += soc.c CPPFLAGS_common += -Isrc/soc/mediatek/mt8188/include diff --git a/src/soc/mediatek/mt8188/soc.c b/src/soc/mediatek/mt8188/soc.c index cce21a0b0c..09a85c1e4f 100644 --- a/src/soc/mediatek/mt8188/soc.c +++ b/src/soc/mediatek/mt8188/soc.c @@ -2,6 +2,7 @@ #include <device/device.h> #include <soc/emi.h> +#include <soc/mmu_operations.h> #include <symbols.h> static void soc_read_resources(struct device *dev) @@ -11,6 +12,7 @@ static void soc_read_resources(struct device *dev) static void soc_init(struct device *dev) { + mtk_mmu_disable_l2c_sram(); } static struct device_operations soc_ops = { |