From bf5aa04d8bb086860f66efd7339ed2083f1a40d9 Mon Sep 17 00:00:00 2001 From: Kapil Porwal Date: Wed, 28 Jan 2026 15:15:35 +0530 Subject: [PATCH] soc/qc/common: Configure framebuffer as uncacheable Configure the framebuffer as uncacheable so that all write operations bypass the cache and update memory instantly. BUG=b:427387842 TEST=Verify firmware splash screen on Google/Quartz. Change-Id: I47188eb51c4b1f90ff7a611e5712947e73180add Signed-off-by: Kapil Porwal Reviewed-on: https://review.coreboot.org/c/coreboot/+/90969 Tested-by: build bot (Jenkins) Reviewed-by: Subrata Banik --- src/soc/qualcomm/common/mmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/soc/qualcomm/common/mmu.c b/src/soc/qualcomm/common/mmu.c index 480b7a9fea..c3f89a24c1 100644 --- a/src/soc/qualcomm/common/mmu.c +++ b/src/soc/qualcomm/common/mmu.c @@ -79,4 +79,7 @@ void qc_mmu_dram_config_post_dram_init(size_t ddr_size) if (REGION_SIZE(dram_aop_cmd_db) != 0) mmu_config_range((void *)_dram_aop_cmd_db, REGION_SIZE(dram_aop_cmd_db), UNCACHED_RAM); + + if (REGION_SIZE(framebuffer)) + mmu_config_range((void *)_framebuffer, REGION_SIZE(framebuffer), UNCACHED_RAM); }