diff options
| -rw-r--r-- | src/mainboard/google/pit/mainboard.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/pit/mainboard.c b/src/mainboard/google/pit/mainboard.c index 28704677a6..d0230e26f1 100644 --- a/src/mainboard/google/pit/mainboard.c +++ b/src/mainboard/google/pit/mainboard.c @@ -326,6 +326,15 @@ static void mainboard_init(device_t dev) fb_addr = cbmem_find(CBMEM_ID_CONSOLE); set_vbe_mode_info_valid(&edid, (uintptr_t)fb_addr); + /* + * The reset value for FIMD SYSMMU register MMU_CTRL:0x14640000 + * should be 0 according to the datasheet, but has experimentally + * been found to come up as 3. This means FIMD SYSMMU is on by + * default on Exynos5420. For now we are disabling FIMD SYSMMU. + */ + writel(0x0, (void *)0x14640000); + writel(0x0, (void *)0x14680000); + lcd_vdd(); parade_dp_bridge_setup(); |