diff options
| author | Andre Przywara | 2020-04-27 19:18:01 +0100 |
|---|---|---|
| committer | Tom Rini | 2020-05-07 09:01:42 -0400 |
| commit | b3270e91385111facdb7c79c30f2943d93e63280 (patch) | |
| tree | b337090c8b8e5f333a01b95a5768a16a507299fb /configs/vexpress_aemv8a_juno_defconfig | |
| parent | deaa511d87e94c4e6274c0327333bdafd914e940 (diff) | |
arm: juno: Enable OF_CONTROL
The Arm Juno board was still somewhat stuck in "hardcoded land", even
though there are stable DTs around, and one happens to actually be on
the memory mapped NOR flash.
Enable the configuration options to let the board use OF_CONTROL, and
add a routine to find the address of the DTB partition in NOR
flash, to use that for U-Boot's own purposes.
This can also passed on via $fdtcontroladdr to any kernel or EFI
application, removing the need to actually load a device tree.
Since the existing "afs" command and its flash routines require
flash_init() to be called before being usable, and this is done much
later in the boot process, we introduce a stripped-down partition finder
routine in vexpress64.c, to scan the NOR flash partitions for the
DT partition. This location is then used for U-Boot to find and probe
devices.
The name of the partition can be configured, if needed, but defaults
to "board.dtb", which is used by Linaro's firmware image provided.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'configs/vexpress_aemv8a_juno_defconfig')
| -rw-r--r-- | configs/vexpress_aemv8a_juno_defconfig | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/configs/vexpress_aemv8a_juno_defconfig b/configs/vexpress_aemv8a_juno_defconfig index 8628d05e68b..6cb21e7a1bf 100644 --- a/configs/vexpress_aemv8a_juno_defconfig +++ b/configs/vexpress_aemv8a_juno_defconfig @@ -10,6 +10,7 @@ CONFIG_DISTRO_DEFAULTS=y CONFIG_BOOTDELAY=1 CONFIG_USE_BOOTARGS=y CONFIG_BOOTARGS="console=ttyAMA0,115200n8 root=/dev/sda2 rw rootwait earlycon=pl011,0x7ff80000 debug user_debug=31 androidboot.hardware=juno loglevel=9" +CONFIG_OF_BOARD=y # CONFIG_USE_BOOTCOMMAND is not set # CONFIG_DISPLAY_CPUINFO is not set # CONFIG_DISPLAY_BOARDINFO is not set @@ -30,7 +31,6 @@ CONFIG_CMD_UBI=y # CONFIG_EFI_PARTITION is not set CONFIG_ENV_IS_IN_FLASH=y CONFIG_ENV_ADDR=0xBFC0000 -CONFIG_DM=y # CONFIG_MMC is not set CONFIG_MTD=y CONFIG_MTD_NOR_FLASH=y @@ -41,5 +41,3 @@ CONFIG_SYS_FLASH_CFI=y CONFIG_SMC911X=y CONFIG_SMC911X_BASE=0x018000000 CONFIG_SMC911X_32_BIT=y -CONFIG_DM_SERIAL=y -CONFIG_OF_LIBFDT=y |