On Fri, 15 Jul 2022 at 17:37, Quentin Schulz foss+uboot@0leil.net wrote:
From: Quentin Schulz quentin.schulz@theobroma-systems.com
On MMC storage media, the TPL/SPL needs to be flashed at offset 32KB. Instead of requesting the user to put the input the appropriate offsets, let's create u-boot-rockchip.bin with the padding already added.
NAK.
The storage layout provided by Rockchip leaves space for a (protective) MBR and a primary GPT. A bootloader update will overwrite the partition table if you create the image as you suggest.
Cc: Quentin Schulz foss+uboot@0leil.net Signed-off-by: Quentin Schulz quentin.schulz@theobroma-systems.com
arch/arm/dts/rockchip-u-boot.dtsi | 3 ++- doc/board/rockchip/rockchip.rst | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/rockchip-u-boot.dtsi b/arch/arm/dts/rockchip-u-boot.dtsi index fc28ce5187..4cd243514e 100644 --- a/arch/arm/dts/rockchip-u-boot.dtsi +++ b/arch/arm/dts/rockchip-u-boot.dtsi @@ -18,6 +18,7 @@ pad-byte = <0xff>;
mkimage {
offset = <(32 * 1024)>; /* 32KB */ args = "-n", CONFIG_SYS_SOC, "-T", "rksd";#ifndef CONFIG_TPL u-boot-spl { @@ -38,7 +39,7 @@ #else u-boot-img { #endif
offset = <((CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR - 64) * 512)>;
offset = <(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512)>; }; };}; diff --git a/doc/board/rockchip/rockchip.rst b/doc/board/rockchip/rockchip.rst index 4ca7b00b1f..1995882244 100644 --- a/doc/board/rockchip/rockchip.rst +++ b/doc/board/rockchip/rockchip.rst @@ -179,7 +179,7 @@ To write an image that boots from a SD card (assumed to be /dev/sda):
.. code-block:: bash
sudo dd if=u-boot-rockchip.bin of=/dev/sda seek=64
sudo dd if=u-boot-rockchip.bin of=/dev/sda synceMMC
2.36.1