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soc/mediatek: Enable DRAM scramble on fast calibration flow 

No matter what DRAM calibration is performed, DRAM scramble should be
enabled as long as MEDIATEK_DRAM_SCRAMBLE is set to y. Currently, DRAM
scramble is enabled only if full calibration is performed. Correct the
behavior by adding DRAMC_CONFIG_SCRAMBLE to the header config in fast
calibration flow.

BUG=b:285474337
TEST=Check the scramble feature is disabled on serial build

Signed-off-by: Xi Chen <xixi.chen@mediatek.corp-partner.google.com>
Change-Id: I907bccd4e68e040179e1971db6bf7a57b88dec1b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75818
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Xi Chen 2023-06-14 13:34:25 +08:00 committed by Yu-Ping Wu
parent 9906ffe529
commit 35fb55ac3d
1 changed files with 2 additions and 0 deletions
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2
src/soc/mediatek/common/memory.c
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@ -202,6 +202,8 @@ static int dram_run_fast_calibration(struct dramc_param *dparam)
printk(BIOS_INFO, "DRAM-K: DRAM calibration data valid pass\n");
if (CONFIG(MEDIATEK_DRAM_SCRAMBLE))
dparam->header.config |= DRAMC_CONFIG_SCRAMBLE;
if (CONFIG(MEDIATEK_DRAM_BLOB_FAST_INIT)) {
printk(BIOS_INFO, "DRAM-K: Run fast calibration run in blob mode\n");