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authorSascha Hauer <s.hauer@pengutronix.de>2021-06-21 11:28:00 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2021-06-28 09:38:11 +0200
commitb9f1bb8563baf76a80c2300cfbdd08b100b18023 (patch)
tree78ea7bf014575b33acb5ec43dd83d6b210e952c2 /Documentation
parent162d6919c8b646ea69fa0848238f26ece398aad0 (diff)
downloadbarebox-b9f1bb8563baf76a80c2300cfbdd08b100b18023.tar.gz
barebox-b9f1bb8563baf76a80c2300cfbdd08b100b18023.tar.xz
ARM: Rockchip: Add rk3568 evb board support
This adds support for the rk3568 evb board. Tested features so far are: - 1st stage booting - Network - SD card - eMMC The dts files are based on the ones posted on the mailing lists, they should be rebased on the upstream files once they show up in barebox. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Link: https://lore.barebox.org/20210615141641.31577-11-s.hauer@pengutronix.de Link: https://lore.barebox.org/20210621092802.27275-11-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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-rw-r--r--Documentation/boards/rockchip.rst39
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diff --git a/Documentation/boards/rockchip.rst b/Documentation/boards/rockchip.rst
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--- a/Documentation/boards/rockchip.rst
+++ b/Documentation/boards/rockchip.rst
@@ -45,3 +45,42 @@ Instructions.
* Run "rk-makebootable FlashData barebox-radxa-rock.bin rrboot.bin"
* Insert SD card and run "dd if=rrboot.bin of=</dev/sdcard> bs=$((0x200)) seek=$((0x40))"
* SD card is ready
+
+Rockchip RK3568
+===============
+
+RK3568 EVB
+----------
+
+Building
+^^^^^^^^
+
+The build process needs three binary files which have to be copied from the
+`rkbin https://github.com/rockchip-linux/rkbin` repository to the barebox source tree:
+
+.. code-block:: sh
+ cp $RKBIN/rk35/rk3568_bl31_v1.24.elf firmware/rk3568-bl31.bin
+ cp $RKBIN/bin/rk35/rk3568_bl32_v1.05.bin firmware/rk3568-op-tee.bin
+ cp $RKBIN/bin/rk35/rk3568_ddr_1560MHz_v1.08.bin arch/arm/boards/rockchip-rk3568-evb/sdram-init.bin
+
+With these barebox can be compiled as:
+
+.. code-block:: sh
+
+ make ARCH=arm rockchip_v8_defconfig
+ make ARCH=arm
+
+**NOTE** I found the bl32 firmware non working for me as of 7d631e0d5b2d373b54d4533580d08fb9bd2eaad4 in the rkbin repository.
+
+Creating a bootable SD card
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+A bootable SD card can be created with:
+
+.. code-block:: sh
+
+ dd if=images/barebox-rk3568-evb.img of=/dev/sdx bs=1024 seek=32
+
+The barebox image is written to the raw device, so make sure the partitioning
+doesn't conflict with the are barebox is written to. Starting the first
+partition at offset 8MiB is a safe bet.