[PATCH v2 4/4] arm: mvebu: Espressobin: Update README.marvell file
sr at denx.de
Thu Aug 27 17:32:10 CEST 2020
On 27.08.20 15:01, Pali Rohár wrote:
> Include information about permanent ethernet MAC address and add link how
> to build ATF as U-Boot on Espressobin cannot be flashed without ATF.
> Signed-off-by: Pali Rohár <pali at kernel.org>
Reviewed-by: Stefan Roese <sr at denx.de>
> doc/README.marvell | 40 +++++++++++++++++++++++++++++++++++++---
> 1 file changed, 37 insertions(+), 3 deletions(-)
> diff --git a/doc/README.marvell b/doc/README.marvell
> index 336461745c..da16316407 100644
> --- a/doc/README.marvell
> +++ b/doc/README.marvell
> @@ -13,7 +13,8 @@ Build Procedure
> 2. Set the cross compiler:
> - # export CROSS_COMPILE=/path/to/toolchain/aarch64-marvell-linux-gnu-
> + # sudo apt-get install gcc-aarch64-linux-gnu
> + # export CROSS_COMPILE=aarch64-linux-gnu-
> 3. Clean-up old residuals:
> @@ -30,7 +31,7 @@ Build Procedure
> 5. Configure the device-tree and build the U-Boot image:
> - Compile u-boot and set the required device-tree using:
> + For the Armada-70x0/80x0 DB board compile u-boot and set the required device-tree using:
> # make DEVICE_TREE=<name>
> @@ -42,12 +43,45 @@ Build Procedure
> In order to prevent this, the required device-tree MUST be set during compilation.
> All device-tree files are located in ./arch/arm/dts/ folder.
> + For other DB boards (MacchiatoBin, EspressoBin and 3700 DB board) compile u-boot with
> + just default device-tree from defconfig using:
> + # make
> The u-boot.bin should not be used as a stand-alone image.
> The ARM Trusted Firmware (ATF) build process uses this image to generate the
> - flash image.
> + flash image. See TF-A Build Instructions for Marvell Platforms for more details at:
> + https://trustedfirmware-a.readthedocs.io/en/latest/plat/marvell/armada/build.html
> Configuration update
> To update the U-Boot configuration, please refer to doc/README.kconfig
> +Permanent ethernet MAC address
> + Prior flashing new U-Boot version (as part of ATF image) it is suggested to backup
> + permanent ethernet MAC address as it is stored only in U-Boot env storage (SPI or eMMC).
> + Some boards like EspressoBin have MAC address printed on sticker. To print current MAC
> + address run:
> + # echo $ethaddr
> + MAC addresses 00:51:82:11:22:00, 00:51:82:11:22:01, 00:51:82:11:22:02, 00:51:82:11:22:03
> + and F0:AD:4E:03:64:7F are default hardcoded values found in Marvell's and Armbian U-Boot
> + forks and therefore *not* unique. Usage of static hardcoded MAC addresses should be avoided.
> + When original address is lost (e.g. erased by Armbian boot scripts for EspressoBin) it is
> + suggested to generate new random one.
> + After flashing new U-Boot version it is suggested to reset U-Boot env variables to default
> + and then set correct permanent ethernet MAC address.
> + # env default -a
> + # setenv ethaddr XX:XX:XX:XX:XX:XX
> + # saveenv
> + Where XX:XX:XX:XX:XX:XX is permanent ethernet MAC address.
> + Recent Linux kernel versions use correct permanent ethernet MAC address from U-Boot env as
> + U-Boot will inject it into kernel's device-tree.
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: sr at denx.de
More information about the U-Boot