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From: Michael Tretter <m.tretter@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH v2 7/7] Documentation: zynqmp: add some documentation
Date: Thu, 24 Jun 2021 17:00:54 +0200	[thread overview]
Message-ID: <20210624150054.1205422-8-m.tretter@pengutronix.de> (raw)
In-Reply-To: <20210624150054.1205422-1-m.tretter@pengutronix.de>

Add at least some information how Barebox can be used on the ZynqMP and
what is required to create a bootable image.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
---
Changelog:

v2: none
---
 Documentation/boards/zynqmp.rst | 40 +++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/boards/zynqmp.rst

diff --git a/Documentation/boards/zynqmp.rst b/Documentation/boards/zynqmp.rst
new file mode 100644
index 000000000000..05d41c401dc2
--- /dev/null
+++ b/Documentation/boards/zynqmp.rst
@@ -0,0 +1,40 @@
+Xilinx ZynqMP Ultrascale+
+=========================
+
+Barebox has support as a second stage boot loader for the Xilinx ZynqMP
+Ultrascale+.
+
+Image creation
+--------------
+
+Currently, Barebox only supports booting as a second stage boot loader from an
+SD-card. It relies on the FSBL_ to initialize the base system including sdram
+setup and pin muxing.
+
+The ZynqMP defconfig supports the ZCU104 reference board. Use it to build the
+Barebox image::
+
+   make ARCH=arm64 zynqmp_defconfig
+   make ARCH=arm64
+
+.. note:: The resulting image ``images/barebox-zynqmp-zcu104.img`` is **not** an image
+  that can directly be booted on the ZynqMP.
+
+For a bootable BOOT.BIN image, you also need to build the FSBL_ and a ZynqMP
+TF-A. Prepare these separately using the respective instructions.
+
+Use bootgen_ or ``mkimage -T zynqmpbif`` from the U-boot tools to build the
+final BOOT.BIN image that can be loaded by the ROM code. Check the
+instructions for these tools how to prepare the BOOT.BIN image.
+
+Create a FAT partition as the first partition of the SD card and copy the
+produced BOOT.BIN into this partition.
+
+.. _FSBL: `https://github.com/Xilinx/embeddedsw/`
+.. _bootgen: `https://github.com/Xilinx/bootgen`
+
+Booting Barebox
+---------------
+
+The FSBL loads the TF-A and Barebox, jumps to the TF-A, which will then return
+to Barebox. Afterwards, you can use Barebox as usual.
-- 
2.30.2


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  parent reply	other threads:[~2021-06-24 15:03 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-24 15:00 [PATCH v2 0/7] ZynqMP: Cleanup and extend board support Michael Tretter
2021-06-24 15:00 ` [PATCH v2 1/7] ARM: zynqmp: set reset source Michael Tretter
2021-06-24 15:00 ` [PATCH v2 2/7] clk: zynqmp: do not enable already enabled clocks Michael Tretter
2021-06-24 15:00 ` [PATCH v2 3/7] dts: zcu104: add Barebox environment Michael Tretter
2021-06-24 15:00 ` [PATCH v2 4/7] ARM: zynqmp: add update handler Michael Tretter
2021-06-24 15:00 ` [PATCH v2 5/7] ARM: zynqmp: zcu104: register " Michael Tretter
2021-06-24 15:00 ` [PATCH v2 6/7] ARM: zynqmp: defconfig: enable more features Michael Tretter
2021-06-24 15:00 ` Michael Tretter [this message]
2021-06-25  7:39 ` [PATCH v2 0/7] ZynqMP: Cleanup and extend board support Sascha Hauer

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