[coreboot-gerrit] Change in coreboot[master]: mediatek/mt8183: Add new option for eMCP DDR

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/34989 )

Change subject: mediatek/mt8183: Add new option for eMCP DDR
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mediatek/mt8183: Add new option for eMCP DDR

Devices using eMCP may run at a high DRAM frequency (e.g., 3600Mbs)
while those with discrete DRAM can only run at 3200Mbps. A new option
MT8183_DRAM_EMCP is added to Kconfig for a mainboard to select,
depending on whether it supports eMCP or not.

BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui

Change-Id: I9b73c8b512db5104896ea0d330d56e63eb50a44b
Signed-off-by: Huayang Duan 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34989
Tested-by: build bot (Jenkins) 
Reviewed-by: Hung-Te Lin 
---
M src/soc/mediatek/mt8183/Kconfig
1 file changed, 7 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Hung-Te Lin: Looks good to me, approved

diff --git a/src/soc/mediatek/mt8183/Kconfig b/src/soc/mediatek/mt8183/Kconfig
index 9ac57bd..5ded0d3 100644
--- a/src/soc/mediatek/mt8183/Kconfig
+++ b/src/soc/mediatek/mt8183/Kconfig
@@ -23,6 +23,13 @@
    help
      This option enables additional DRAM related debug messages.

+config MT8183_DRAM_EMCP
+	bool
+	default n
+	help
+	  The eMCP platform should select this option to run at different DRAM
+	  frequencies.
+
 config MEMORY_TEST
    bool
    default y