From 868ea4a7299092d598239efeeb2e5713f752bc7e Mon Sep 17 00:00:00 2001 From: Guillaume Gardet Date: Fri, 18 Sep 2020 15:27:37 +0200 Subject: [PATCH] rpi: Use firmware provided device tree Currently the firmware generates a device tree for us that we could just use to adjust ourselves. We then on boot throw that away and use our own built-in device tree to configure device access. This is bad for a multitude of reasons. For starters, it breaks overlay support in config.txt, confusing users. Much worse however is that we are stuck with individual U-Boot builds per board. The firmware can easily give us the right DT depending on the target board and revision though. So let's use the firmware provided device tree instead. That way U-Boot as well as payloads loaded by it can automatically adapt to variants of RPi hardware. Signed-off-by: Alexander Graf Signed-off-by: Guillaume Gardet --- configs/rpi_0_w_defconfig | 1 + configs/rpi_2_defconfig | 1 + configs/rpi_3_32b_defconfig | 1 + configs/rpi_3_defconfig | 1 + configs/rpi_defconfig | 1 + 5 files changed, 5 insertions(+) diff --git a/configs/rpi_0_w_defconfig b/configs/rpi_0_w_defconfig index 98f8904c91..7d5c427c38 100644 --- a/configs/rpi_0_w_defconfig +++ b/configs/rpi_0_w_defconfig @@ -24,6 +24,7 @@ CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y CONFIG_CMD_USB=y CONFIG_CMD_FS_UUID=y +CONFIG_OF_BOARD=y CONFIG_ENV_FAT_DEVICE_AND_PART="0:1" CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y diff --git a/configs/rpi_2_defconfig b/configs/rpi_2_defconfig index 1b8676e1d1..2d351e838c 100644 --- a/configs/rpi_2_defconfig +++ b/configs/rpi_2_defconfig @@ -25,6 +25,7 @@ CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y CONFIG_CMD_USB=y CONFIG_CMD_FS_UUID=y +CONFIG_OF_BOARD=y CONFIG_ENV_FAT_DEVICE_AND_PART="0:1" CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y diff --git a/configs/rpi_3_32b_defconfig b/configs/rpi_3_32b_defconfig index abc10a79ad..d89106167d 100644 --- a/configs/rpi_3_32b_defconfig +++ b/configs/rpi_3_32b_defconfig @@ -24,6 +24,7 @@ CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y CONFIG_CMD_USB=y CONFIG_CMD_FS_UUID=y +CONFIG_OF_BOARD=y CONFIG_ENV_FAT_DEVICE_AND_PART="0:1" CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y diff --git a/configs/rpi_3_defconfig b/configs/rpi_3_defconfig index 9853c44880..c583132368 100644 --- a/configs/rpi_3_defconfig +++ b/configs/rpi_3_defconfig @@ -23,6 +23,7 @@ CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y CONFIG_CMD_USB=y CONFIG_CMD_FS_UUID=y +CONFIG_OF_BOARD=y CONFIG_ENV_FAT_DEVICE_AND_PART="0:1" CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y diff --git a/configs/rpi_defconfig b/configs/rpi_defconfig index 060a880950..376637eaaf 100644 --- a/configs/rpi_defconfig +++ b/configs/rpi_defconfig @@ -24,6 +24,7 @@ CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y CONFIG_CMD_USB=y CONFIG_CMD_FS_UUID=y +CONFIG_OF_BOARD=y CONFIG_ENV_FAT_DEVICE_AND_PART="0:1" CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y