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authorRex-BC Chen <rex-bc.chen@mediatek.com>2021-05-10 20:06:35 +0800
committerHung-Te Lin <hungte@chromium.org>2021-05-13 01:43:57 +0000
commit00b43c98437484c59da0d1332936ee9a15d453fe (patch)
treebd69701cac3ee266def3ff30b92575d37b22f971 /src
parent8c3b747ccffc6a0fda8bde74caaf685dde78930f (diff)
soc/mediatek/mt8195: configure DMA buffer in DRAM
Set DRAM DMA to be non-cacheable to load blob correctly. Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I819d40431fc7c9e7549686736d9e70de1c1982f0 Reviewed-on: https://review.coreboot.org/c/coreboot/+/54052 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/soc/mediatek/mt8195/Makefile.inc1
-rw-r--r--src/soc/mediatek/mt8195/mmu_operations.c7
2 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8195/Makefile.inc b/src/soc/mediatek/mt8195/Makefile.inc
index 67ceed3603..a04ccf4a19 100644
--- a/src/soc/mediatek/mt8195/Makefile.inc
+++ b/src/soc/mediatek/mt8195/Makefile.inc
@@ -26,6 +26,7 @@ romstage-y += emi.c
romstage-y += ../common/flash_controller.c
romstage-y += ../common/gpio.c gpio.c
romstage-y += ../common/i2c.c i2c.c
+romstage-y += ../common/mmu_operations.c mmu_operations.c
romstage-y += ../common/pll.c pll.c
romstage-y += scp.c
romstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
diff --git a/src/soc/mediatek/mt8195/mmu_operations.c b/src/soc/mediatek/mt8195/mmu_operations.c
index 7018093dd9..de6e8bcdf9 100644
--- a/src/soc/mediatek/mt8195/mmu_operations.c
+++ b/src/soc/mediatek/mt8195/mmu_operations.c
@@ -29,3 +29,10 @@ void mtk_soc_disable_l2c_sram(void)
MP0_CLUSTER_CFG0_L3_SHARE_PRE_EN, 0);
dsb();
}
+
+/* mtk_soc_after_dram is called in romstage */
+void mtk_soc_after_dram(void)
+{
+ mmu_config_range(_dram_dma, REGION_SIZE(dram_dma),
+ NONSECURE_UNCACHED_MEM);
+}