diff options
| author | Sam Protsenko <[email protected]> | 2025-08-06 17:27:08 -0500 |
|---|---|---|
| committer | Minkyu Kang <[email protected]> | 2025-09-01 16:37:13 +0900 |
| commit | e52e4320ba8db5a0a42f0bf53b7ac98fcfa83a14 (patch) | |
| tree | ade7c102cd4f3185ff238d6422967d327b6144d9 | |
| parent | 75f75832d0a97a8c1e1167eb3a6d3dbd1d4eae54 (diff) | |
configs: e850-96: Disable CONFIG_DEFAULT_FDT_FILE
Linux kernel should use some separate device tree obtained from another
source anyway. For example the dtb file can be read from /boot directory
in eMMC rootfs partition, either by GRUB or U-Boot. Using U-Boot's
device tree blob to provide it to the kernel (when
CONFIG_DEFAULT_FDT_FILE is set and nobody else overrides this choice)
might lead to undesired effects when booting the OS. For example, if a
user sets "dr_mode" property to "host" value in U-Boot's dts to enable
USB host capabilities in U-Boot, it might confuse usb-conn-gpio driver
in Linux kernel later like this:
platform connector: deferred probe pending: usb-conn-gpio:
failed to get role switch
Disable CONFIG_DEFAULT_FDT_FILE option to avoid any possible confusion.
Signed-off-by: Sam Protsenko <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
| -rw-r--r-- | board/samsung/e850-96/e850-96.env | 2 | ||||
| -rw-r--r-- | configs/e850-96_defconfig | 1 |
2 files changed, 1 insertions, 2 deletions
diff --git a/board/samsung/e850-96/e850-96.env b/board/samsung/e850-96/e850-96.env index aed7a71046d..992318b0ab2 100644 --- a/board/samsung/e850-96/e850-96.env +++ b/board/samsung/e850-96/e850-96.env @@ -5,7 +5,7 @@ fdt_addr_r=0x8c000000 scriptaddr=0x8c100000 pxefile_addr_r=0x8c200000 ramdisk_addr_r=0x8c300000 -fdtfile=CONFIG_DEFAULT_FDT_FILE +fdtfile=exynos/exynos850-e850-96.dtb dfu_alt_info= rawemmc raw 0 0x747c000 mmcpart 1; diff --git a/configs/e850-96_defconfig b/configs/e850-96_defconfig index b4066d87460..412c99468f2 100644 --- a/configs/e850-96_defconfig +++ b/configs/e850-96_defconfig @@ -19,7 +19,6 @@ CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y CONFIG_EFI_CAPSULE_ON_DISK=y CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y CONFIG_BOOTSTD_FULL=y -CONFIG_DEFAULT_FDT_FILE="exynos850-e850-96.dtb" # CONFIG_DISPLAY_CPUINFO is not set # CONFIG_BOARD_INIT is not set CONFIG_BOARD_LATE_INIT=y |