9095fb1211
Adjust and update existing manuals to reflect the most recent updates. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
42 lines
1.1 KiB
ReStructuredText
42 lines
1.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for the Microsoft Surface RT tablet
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==========================================
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Quick Start
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-----------
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- Build U-Boot
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- Boot
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Build U-Boot
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------------
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.. code-block:: bash
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$ export CROSS_COMPILE=arm-none-eabi-
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$ make surface-rt_defconfig
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$ make
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After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
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image, ready for loading.
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Boot
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----
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Currently, U-Boot can be preloaded into RAM via the Fusée Gelée. To enter
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RCM protocol use ``power`` and ``volume up`` key combination from powered
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off device. The host PC should recognize an APX device.
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Built U-Boot ``u-boot-dtb-tegra.bin`` can be loaded from fusee-tools
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directory with
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.. code-block:: bash
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$ ./run_bootloader.sh -s T30 -t ./bct/surface-rt.bct
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To boot Linux, U-Boot will look for an ``extlinux.conf`` on MicroSD and then on
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eMMC. Additionally, if the Volume Down button is pressed while loading, the
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device will enter bootmenu. Bootmenu contains entries to mount MicroSD and eMMC
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as mass storage, fastboot, reboot, reboot RCM, poweroff and enter U-Boot console.
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