On 2020/5/19 下午10:51, Tom Rini wrote:
When building U-Boot we select the architecture via Kconfig and not ARCH
being passed in via the environment or make cmdline.

Cc: Kever Yang <kever.y...@rock-chips.com>
Cc: Simon Glass <s...@chromium.org>
Cc: Philipp Tomsich <philipp.toms...@theobroma-systems.com>
Cc: Klaus Goger <klaus.go...@theobroma-systems.com>
Cc: Jagan Teki <ja...@amarulasolutions.com>
Signed-off-by: Tom Rini <tr...@konsulko.com>

Reviewed-by: Kever Yang <kever.y...@rock-chips.com>

Thanks,
- Kever
---
As an aside, these files should be converted rST and moved to doc/board/
and the MAINTAINERS file updated to include the new documentation file
too.  Thanks!
---
  board/rockchip/evb_rk3229/README           | 1 -
  board/rockchip/evb_rk3399/README           | 1 -
  board/theobroma-systems/lion_rk3368/README | 4 ++--
  board/vamrs/rock960_rk3399/README          | 1 -
  4 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/board/rockchip/evb_rk3229/README b/board/rockchip/evb_rk3229/README
index 93328c75b204..9068225e2721 100644
--- a/board/rockchip/evb_rk3229/README
+++ b/board/rockchip/evb_rk3229/README
@@ -22,7 +22,6 @@ Compile the U-Boot
> cd ../u-boot
    > export CROSS_COMPILE=arm-linux-gnueabihf-
-  > export ARCH=arm
    > make evb-rk3229_defconfig
    > make
    > make u-boot.itb
diff --git a/board/rockchip/evb_rk3399/README b/board/rockchip/evb_rk3399/README
index da7ae89ab1e9..c6f58203ebe9 100644
--- a/board/rockchip/evb_rk3399/README
+++ b/board/rockchip/evb_rk3399/README
@@ -54,7 +54,6 @@ Compile U-Boot
  ==============
> cd ../u-boot
-  > export ARCH=arm64
    > export CROSS_COMPILE=aarch64-linux-gnu-
    > make evb-rk3399_defconfig
    for firefly-rk3399, use below instead:
diff --git a/board/theobroma-systems/lion_rk3368/README 
b/board/theobroma-systems/lion_rk3368/README
index ad3ac93bd44b..7488b18326b9 100644
--- a/board/theobroma-systems/lion_rk3368/README
+++ b/board/theobroma-systems/lion_rk3368/README
@@ -17,12 +17,12 @@ Configure U-Boot
  Build the TPL/SPL stage
  =======================
- > make CROSS_COMPILE=aarch64-unknown-elf- ARCH=arm
+  > make CROSS_COMPILE=aarch64-unknown-elf-
Build the full U-Boot and a FIT image including the ATF
  =======================================================
- > make CROSS_COMPILE=aarch64-unknown-elf- ARCH=arm u-boot.itb
+  > make CROSS_COMPILE=aarch64-unknown-elf- u-boot.itb
Flash the image
  ===============
diff --git a/board/vamrs/rock960_rk3399/README 
b/board/vamrs/rock960_rk3399/README
index c5c675c4ead1..15df027fbcd4 100644
--- a/board/vamrs/rock960_rk3399/README
+++ b/board/vamrs/rock960_rk3399/README
@@ -57,7 +57,6 @@ Compile the U-Boot
> cd ../u-boot
    > cp ../rkbin/rk33/rk3399_bl31_v1.00.elf ./bl31.elf
-  > export ARCH=arm64
    > export CROSS_COMPILE=aarch64-linux-gnu-
    > make rock960-rk3399_defconfig
    > make


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