Recently, the U-Boot installation process has changed significantly.
This should be depicted in documentation.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
U-Boot for the ASUS/Google Nexus 7 (2012)
=========================================
-``DISCLAMER!`` Moving your ASUS/Google Nexus 7 (2012) to use
-U-Boot assumes replacement of the vendor ASUS bootloader. Vendor
-android firmwares will no longer be able to run on the device.
-This replacement IS reversible.
+``DISCLAMER!`` Moving your ASUS/Google Nexus 7 (2012) to use U-Boot assumes
+replacement of the vendor ASUS bootloader. Vendor android firmwares will no
+longer be able to run on the device. This replacement IS reversible.
Quick Start
-----------
- Build U-Boot
-- Pack U-Boot into repart-block
-- Flash repart-block into the eMMC
+- Process U-Boot
+- Flashing U-Boot into the eMMC
- Boot
- Self Upgrading
Build U-Boot
------------
-Device support is implemented by applying config fragment to a generic
-board defconfig. Valid fragments are ``grouper_E1565.config``,
-``grouper_PM269.config`` and ``tilapia.config``.
+Device support is implemented by applying config fragment to a generic board
+defconfig. Valid fragments are ``tilapia.config``, ``grouper_E1565.config``
+and ``grouper_PM269.config``.
.. code-block:: bash
$ make
After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
-image, ready for flashing (but check the next section for additional
-adjustments).
+image, ready for further processing.
-Pack U-Boot into repar-block
-----------------------------
+Process U-Boot
+--------------
-``DISCLAMER!`` All questions related to re-crypt work should be asked
+``DISCLAMER!`` All questions related to the re-crypt work should be asked
in re-crypt repo issues. NOT HERE!
-re-crypt is a small script which packs ``u-boot-dtb-tegra.bin`` in
-form usable by device. This process is required only on the first
-installation or to recover the device in case of a failed update.
-You need to know your tablet's individual SBK to continue.
+re-crypt is a tool that processes the ``u-boot-dtb-tegra.bin`` binary into form
+usable by device. This process is required only on the first installation or
+to recover the device in case of a failed update. You need to know your
+tablet's individual SBK to continue.
+
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
+
+Processing for the NV3P protocol
+********************************
.. code-block:: bash
- $ git clone https://github.com/clamor-s/re-crypt.git
- $ cd re-crypt # place your u-boot-dtb-regra.bin here
- $ ./re-crypt.sh -d grouper -k deadbeefdeadc0dedeadd00dfee1dead
+ $ git clone https://gitlab.com/grate-driver/re-crypt.git
+ $ cd re-crypt # place your u-boot-dtb-tegra.bin here
+ $ ./re-crypt.py --dev grouper --sbk <your sbk>
+
+where SBK has next form ``0xXXXXXXXX`` ``0xXXXXXXXX`` ``0xXXXXXXXX`` ``0xXXXXXXXX``
+
+The script will produce a ``repart-block.bin`` ready to flash.
+
+Processing for pre-loaded U-Boot
+********************************
+
+The procedure is the same, but the ``--split`` argument is used with the
+``re-crypt.py``. The script will produce ``bct.img`` and ``ebt.img`` ready
+to flash.
+
+Flashing U-Boot into the eMMC
+-----------------------------
+
+``DISCLAMER!`` All questions related to NvFlash should be asked in the proper
+place. NOT HERE! Flashing U-Boot will erase all eMMC, so make a backup before!
-Script will produce you a ``repart-block.bin`` ready to flash.
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
-Flash repart-block into the eMMC
---------------------------------
+Flashing with the NV3P protocol
+*******************************
-``DISCLAMER!`` All questions related to NvFlash should be asked
-in the proper place. NOT HERE! Flashing repart-block will erase
-all your eMMC, so make a backup before!
+Nv3p is a custom Nvidia protocol used to recover bricked devices. Devices can
+enter it either by using ``wheelie`` with the correct ``blob.bin`` file or by
+pre-loading vendor bootloader with the Fusée Gelée.
-``repart-block.bin`` contains BCT and bootloader in encrypted state
-in form which can just be written RAW at the start of eMMC.
+With nv3p, ``repart-block.bin`` is used. It contains BCT and a bootloader in
+encrypted state in form, which can just be written RAW at the start of eMMC.
.. code-block:: bash
$ wheelie --blob blob.bin
$ nvflash --resume --rawdevicewrite 0 1024 repart-block.bin
+When flashing is done, reboot the device.
+
+Flashing with a pre-loaded U-Boot
+*********************************
+
+U-Boot pre-loaded into RAM acts the same as when it was booted "cold". Currently
+U-Boot supports bootmenu entry fastboot, which allows to write a processed copy
+of U-Boot permanently into eMMC.
+
+While pre-loading U-Boot, hold the ``volume down`` button which will trigger
+the bootmenu. There, select ``fastboot`` using the volume and power buttons.
+After, on host PC, do:
+
+.. code-block:: bash
+
+ $ fastboot flash 0.1 bct.img
+ $ fastboot flash 0.2 ebt.img
+ $ fastboot reboot
+
+Device will reboot.
+
Boot
----
-After flashing ``repart-block.bin`` the device should reboot and turn
-itself off. This is normal behavior if no boot configuration is
-found.
-
-To boot Linux, U-Boot will look for an ``extlinux.conf`` configuration
-on eMMC. Additionally if Volume Down button is pressed while booting
-device will enter bootmenu. Bootmenu contains entries to mount eMMC as
-mass storage, fastboot, reboot, reboot RCM, poweroff, enter U-Boot
-console and update bootloader (check next chapter).
+To boot Linux, U-Boot will look for an ``extlinux.conf`` on eMMC. Additionally,
+if the Volume Down button is pressed while booting, the device will enter
+bootmenu. Bootmenu contains entries to mount eMMC as mass storage, fastboot,
+reboot, reboot RCM, poweroff, enter U-Boot console and update bootloader (check
+the next chapter).
-Flashing ``repart-block.bin`` eliminates vendor restriction on eMMC
-and allows the user to use/partition it in any way the user desires.
+Flashing ``repart-block.bin`` eliminates vendor restrictions on eMMC and allows
+the user to use/partition it in any way the user desires.
Self Upgrading
--------------
-Place your ``u-boot-dtb-tegra.bin`` on the first partition of the
-eMMC (using ability of u-boot to mount it). Enter bootmenu, choose
-update bootloader option with Power button and U-Boot should update
-itself. Once the process is completed, U-Boot will ask to press any
-button to reboot.
+Place your ``u-boot-dtb-tegra.bin`` on the first partition of the eMMC (using
+ability of u-boot to mount it). Enter bootmenu, choose update bootloader option
+with Power button and U-Boot should update itself. Once the process is
+completed, U-Boot will ask to press any button to reboot.
U-Boot for the ASUS Transformer device family
=============================================
-``DISCLAMER!`` Moving your ASUS Transformer to use U-Boot
-assumes replacement of the vendor ASUS bootloader. Vendor
-android firmwares will no longer be able to run on the device.
-This replacement IS reversible.
+``DISCLAMER!`` Moving your ASUS Transformer to use U-Boot assumes replacement
+of the vendor ASUS bootloader. Vendor Android firmwares will no longer be
+able to run on the device. This replacement IS reversible.
Quick Start
-----------
- Build U-Boot
-- Pack U-Boot into repart-block
-- Flash repart-block into the eMMC
-- Flash repart-block into TF600T SPI flash
+- Process U-Boot
+- Flashing U-Boot into the eMMC
+- Flashing U-Boot into the SPI flash
- Boot
- Self Upgrading
Build U-Boot
------------
-Device support is implemented by applying config fragment
-to a generic board defconfig. Valid fragments are ``tf201.config``,
-``tf300t.config``, ``tf300tg.config``, ``tf300tl.config``,
-``tf700t.config``, ``tf600t.config`` and ``p1801-t.config``.
+Device support is implemented by applying a config fragment to a generic board
+defconfig. Valid fragments are ``tf201.config``, ``tf300t.config``,
+``tf300tg.config``, ``tf300tl.config``, ``tf700t.config``, ``tf600t.config`` and
+``p1801-t.config``.
.. code-block:: bash
$ make
After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
-image, ready for flashing (but check the next section for additional
-adjustments).
+image, ready for further processing.
-Pack U-Boot into repar-block
-----------------------------
+Process U-Boot
+--------------
-``DISCLAMER!`` All questions related to re-crypt work should be asked
+``DISCLAMER!`` All questions related to the re-crypt work should be asked
in re-crypt repo issues. NOT HERE!
-re-crypt is a small script which packs ``u-boot-dtb-tegra.bin`` in
-form usable by device. This process is required only on the first
-installation or to recover the device in case of a failed update.
-You need to know your tablet's individual SBK to continue.
+re-crypt is a tool that processes the ``u-boot-dtb-tegra.bin`` binary into form
+usable by device. This process is required only on the first installation or
+to recover the device in case of a failed update. You need to know your
+tablet's individual SBK to continue.
+
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
+
+Processing for the NV3P protocol
+********************************
.. code-block:: bash
- $ git clone https://github.com/clamor-s/re-crypt.git
- $ cd re-crypt # place your u-boot-dtb-regra.bin here
- $ ./re-crypt.sh -d tf201 -k deadbeefdeadc0dedeadd00dfee1dead
+ $ git clone https://gitlab.com/grate-driver/re-crypt.git
+ $ cd re-crypt # place your u-boot-dtb-tegra.bin here
+ $ ./re-crypt.py --dev tf201 --sbk <your sbk>
+
+where SBK has next form ``0xXXXXXXXX`` ``0xXXXXXXXX`` ``0xXXXXXXXX`` ``0xXXXXXXXX``
+
+The script will produce a ``repart-block.bin`` ready to flash.
+
+Processing for pre-loaded U-Boot
+********************************
-Script will produce you a `repart-block.bin` ready to flash.
+The procedure is the same, but the ``--split`` argument is used with the
+``re-crypt.py``. The script will produce ``bct.img`` and ``ebt.img`` ready
+to flash.
-Flash repart-block into the eMMC
---------------------------------
+Flashing U-Boot into the eMMC
+-----------------------------
-``DISCLAMER!`` All questions related to NvFlash should be asked
-in the proper place. NOT HERE! Flashing repart-block will erase
-all your eMMC, so make a backup before!
+``DISCLAMER!`` All questions related to NvFlash should be asked in the proper
+place. NOT HERE! Flashing U-Boot will erase all eMMC, so make a backup before!
-``repart-block.bin`` contains BCT and bootloader in encrypted state
-in form which can just be written RAW at the start of eMMC.
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
+
+Flashing with the NV3P protocol
+*******************************
+
+Nv3p is a custom Nvidia protocol used to recover bricked devices. Devices can
+enter it either by using ``wheelie`` with the correct ``blob.bin`` file or by
+pre-loading vendor bootloader with the Fusée Gelée.
+
+With nv3p, ``repart-block.bin`` is used. It contains BCT and a bootloader in
+encrypted state in form, which can just be written RAW at the start of eMMC.
.. code-block:: bash
$ wheelie --blob blob.bin
$ nvflash --resume --rawdevicewrite 0 1024 repart-block.bin
-Flash repart-block into TF600T SPI flash
-----------------------------------------
-
-Unlike other transformers TF600T uses separate 4 MB SPI flash which
-contains all data required for boot. It is flashed from within u-boot
-itself preloaded into RAM using fusee gelee. After creating your
-``repart-block.bin`` you have to place it on a 1st partition of microSD
-card formated in fat. Then insert this microSD card into your tablet
-and boot it using fusee gelee and u-boot which was included into
-repart-block.bin, while booting you must hold volume down button.
-Process should take less then a minute, if everything goes correct,
-on microSD will appear ``spi-flash-backup.bin`` file, which is dump of
-your spi flash content and can be used to restore UEFI, do not loose it,
-tablet will power itself off.
-
-Self-updating of u-boot is performed by placing ``u-boot-dtb-tegra.bin``
-on 1st partition of microSD, inserting it into tablet and booting with
-pressed volume down button.
+When flashing is done, reboot the device.
+
+Flashing with a pre-loaded U-Boot
+*********************************
+
+U-Boot pre-loaded into RAM acts the same as when it was booted "cold". Currently
+U-Boot supports bootmenu entry fastboot, which allows to write a processed copy
+of U-Boot permanently into eMMC.
+
+While pre-loading U-Boot, hold the ``volume down`` button which will trigger
+the bootmenu. There, select ``fastboot`` using the volume and power buttons.
+After, on host PC, do:
+
+.. code-block:: bash
+
+ $ fastboot flash 0.1 bct.img
+ $ fastboot flash 0.2 ebt.img
+ $ fastboot reboot
+
+Device will reboot.
+
+Flashing U-Boot into the SPI Flash
+----------------------------------
+
+Some of Transformers use a separate 4 MB SPI flash, which contains all data
+required for boot. It is flashed from within U-Boot itself, preloaded into RAM
+using Fusée Gelée.
+
+After creating your ``repart-block.bin`` you have to place it on a 1st partition
+of microSD card formated in fat. Then insert this microSD card into your tablet
+and boot it using Fusée Gelée and U-Boot, which was included into
+``repart-block.bin``, while booting you must hold the ``volume down`` button.
+
+The process should take less than a minute, if everything goes correctly,
+on microSD will appear ``spi-flash-backup.bin`` file, which is the dump of your
+SPI Flash content and can be used to restore UEFI, do not lose it, tablet will
+power itself off.
+
+Self-updating of U-Boot is performed by placing ``u-boot-dtb-tegra.bin`` on 1st
+partition of microSD, inserting it into the tablet and booting with a pressed
+``volume down`` button.
Boot
----
-After flashing ``repart-block.bin`` the device should reboot and turn
-itself off. This is normal behavior if no boot configuration is
-found.
-
-To boot Linux, U-Boot will look for an ``extlinux.conf`` on MicroSD
-and then on eMMC. Additionally if Volume Down button is pressed
-while booting device will enter bootmenu. Bootmenu contains entries
-to mount MicroSD and eMMC as mass storage, fastboot, reboot, reboot
-RCM, poweroff, enter U-Boot console and update bootloader (check next
-chapter).
+To boot Linux, U-Boot will look for an ``extlinux.conf`` on MicroSD and then on
+eMMC. Additionally, if the Volume Down button is pressed while booting, the
+device will enter bootmenu. Bootmenu contains entries to mount MicroSD and eMMC
+as mass storage, fastboot, reboot, reboot RCM, poweroff, enter U-Boot console
+and update bootloader (check the next chapter).
-Flashing ``repart-block.bin`` eliminates vendor restriction on eMMC
-and allows the user to use/partition it in any way the user desires.
+Flashing ``repart-block.bin`` eliminates vendor restrictions on eMMC and allows
+the user to use/partition it in any way the user desires.
Self Upgrading
--------------
-Place your ``u-boot-dtb-tegra.bin`` on the first partition of the
-MicroSD card and insert it into the tablet. Enter bootmenu, choose
-update bootloader option with Power button and U-Boot should update
-itself. Once the process is completed, U-Boot will ask to press any
-button to reboot.
+Place your ``u-boot-dtb-tegra.bin`` on the first partition of the MicroSD card
+and insert it into the tablet. Enter bootmenu, choose update the bootloader
+option with the Power button and U-Boot should update itself. Once the process
+is completed, U-Boot will ask to press any button to reboot.
U-Boot for the HTC One X (endeavoru)
====================================
-``DISCLAMER!`` Moving your HTC ONe X to use U-Boot assumes
-replacement of the vendor hboot. Vendor android firmwares
-will no longer be able to run on the device.
-This replacement IS reversible.
+``DISCLAMER!`` Moving your HTC ONe X to use U-Boot assumes replacement of the
+vendor hboot. Vendor android firmwares will no longer be able to run on the
+device. This replacement IS reversible.
Quick Start
-----------
- Build U-Boot
-- Pack U-Boot into repart-block
-- Flash repart-block into the eMMC
+- Process U-Boot
+- Flashing U-Boot into the eMMC
- Boot
- Self Upgrading
$ make
After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
-image, ready for flashing (but check the next section for additional
-adjustments).
+image, ready for further processing.
-Pack U-Boot into repar-block
-----------------------------
+Process U-Boot
+--------------
+
+``DISCLAMER!`` All questions related to the re-crypt work should be asked
+in re-crypt repo issues. NOT HERE!
+
+re-crypt is a tool that processes the ``u-boot-dtb-tegra.bin`` binary into form
+usable by device. This process is required only on the first installation or
+to recover the device in case of a failed update.
-``DISCLAMER!`` All questions related to re-crypt work should be
-asked in re-crypt repo issues. NOT HERE!
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
-re-crypt is a small script which packs ``u-boot-dtb-tegra.bin`` in
-form usable by device. This process is required only on the first
-installation or to recover the device in case of a failed update.
+Processing for the NV3P protocol
+********************************
.. code-block:: bash
- $ git clone https://github.com/clamor-s/re-crypt.git
- $ cd re-crypt # place your u-boot-dtb-regra.bin here
- $ ./re-crypt.sh -d endeavoru
+ $ git clone https://gitlab.com/grate-driver/re-crypt.git
+ $ cd re-crypt # place your u-boot-dtb-tegra.bin here
+ $ ./re-crypt.py --dev endeavoru
+
+The script will produce a ``repart-block.bin`` ready to flash.
+
+Processing for pre-loaded U-Boot
+********************************
-Script will produce you a ``repart-block.bin`` ready to flash.
+The procedure is the same, but the ``--split`` argument is used with the
+``re-crypt.py``. The script will produce ``bct.img`` and ``ebt.img`` ready
+to flash.
-Flash repart-block into the eMMC
---------------------------------
+Flashing U-Boot into the eMMC
+-----------------------------
-``DISCLAMER!`` All questions related to NvFlash should be asked
-in the proper place. NOT HERE! Flashing repart-block will erase
-all your eMMC, so make a backup before!
+``DISCLAMER!`` All questions related to NvFlash should be asked in the proper
+place. NOT HERE! Flashing U-Boot will erase all eMMC, so make a backup before!
-``repart-block.bin`` contains BCT and bootloader in encrypted state
-in form which can just be written RAW at the start of eMMC.
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
+
+Flashing with the NV3P protocol
+*******************************
+
+Nv3p is a custom Nvidia protocol used to recover bricked devices. Devices can
+enter it either by using ``wheelie`` with the correct ``blob.bin`` file or by
+pre-loading vendor bootloader with the Fusée Gelée.
+
+With nv3p, ``repart-block.bin`` is used. It contains BCT and a bootloader in
+encrypted state in form, which can just be written RAW at the start of eMMC.
.. code-block:: bash
$ wheelie --blob blob.bin
$ nvflash --resume --rawdevicewrite 0 1024 repart-block.bin
+When flashing is done, reboot the device.
+
+Flashing with a pre-loaded U-Boot
+*********************************
+
+U-Boot pre-loaded into RAM acts the same as when it was booted "cold". Currently
+U-Boot supports bootmenu entry fastboot, which allows to write a processed copy
+of U-Boot permanently into eMMC.
+
+While pre-loading U-Boot, hold the ``volume down`` button which will trigger
+the bootmenu. There, select ``fastboot`` using the volume and power buttons.
+After, on host PC, do:
+
+.. code-block:: bash
+
+ $ fastboot flash 0.1 bct.img
+ $ fastboot flash 0.2 ebt.img
+ $ fastboot reboot
+
+Device will reboot.
+
Boot
----
-After flashing ``repart-block.bin`` the device should reboot and turn
-itself off. This is normal behavior if no boot configuration is
-found.
-
-To boot Linux, U-Boot will look for an ``extlinux.conf`` configuration
-on eMMC. Additionally if Volume Down button is pressed while booting
-device will enter bootmenu. Bootmenu contains entries to mount eMMC as
-mass storage, fastboot, reboot, reboot RCM, poweroff, enter U-Boot
-console and update bootloader (check next chapter).
+To boot Linux, U-Boot will look for an ``extlinux.conf`` on eMMC. Additionally,
+if the Volume Down button is pressed while booting, the device will enter
+bootmenu. Bootmenu contains entries to mount eMMC as mass storage, fastboot,
+reboot, reboot RCM, poweroff, enter U-Boot console and update bootloader (check
+the next chapter).
-Flashing ``repart-block.bin`` eliminates vendor restriction on eMMC
-and allows the user to use/partition it in any way the user desires.
+Flashing ``repart-block.bin`` eliminates vendor restrictions on eMMC and allows
+the user to use/partition it in any way the user desires.
Self Upgrading
--------------
-Place your ``u-boot-dtb-tegra.bin`` on the first partition of the
-eMMC (using ability of u-boot to mount it). Enter bootmenu, choose
-update bootloader option with Power button and U-Boot should update
-itself. Once the process is completed, U-Boot will ask to press any
-button to reboot.
+Place your ``u-boot-dtb-tegra.bin`` on the first partition of the eMMC (using
+ability of u-boot to mount it). Enter bootmenu, choose update bootloader option
+with Power button and U-Boot should update itself. Once the process is
+completed, U-Boot will ask to press any button to reboot.
U-Boot for the LG X3 T30 device family
======================================
-``DISCLAMER!`` Moving your LG P880 or P895 to use U-Boot
-assumes replacement of the vendor LG bootloader. Vendor
-android firmwares will no longer be able to run on the
-device. This replacement IS reversible.
+``DISCLAMER!`` Moving your LG P880 or P895 to use U-Boot assumes replacement
+of the vendor LG bootloader. Vendor android firmwares will no longer be able
+to run on the device. This replacement IS reversible.
Quick Start
-----------
- Build U-Boot
-- Pack U-Boot into repart-block
-- Flash repart-block into the eMMC
+- Process U-Boot
+- Flashing U-Boot into the eMMC
- Boot
- Self Upgrading
$ make
After the build succeeds, you will obtain the final ``u-boot-dtb-tegra.bin``
-image, ready for flashing (but check the next section for additional
-adjustments).
+image, ready for further processing.
-Pack U-Boot into repar-block
-----------------------------
+Process U-Boot
+--------------
+
+``DISCLAMER!`` All questions related to the re-crypt work should be asked
+in re-crypt repo issues. NOT HERE!
+
+re-crypt is a tool that processes the ``u-boot-dtb-tegra.bin`` binary into form
+usable by device. This process is required only on the first installation or
+to recover the device in case of a failed update.
-``DISCLAMER!`` All questions related to re-crypt work should be
-asked in re-crypt repo issues. NOT HERE!
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
-re-crypt is a small script which packs ``u-boot-dtb-tegra.bin`` in
-form usable by device. This process is required only on the first
-installation or to recover the device in case of a failed update.
+Processing for the NV3P protocol
+********************************
.. code-block:: bash
- $ git clone https://github.com/clamor-s/re-crypt.git
- $ cd re-crypt # place your u-boot-dtb-regra.bin here
- $ ./re-crypt.sh -d p895
+ $ git clone https://gitlab.com/grate-driver/re-crypt.git
+ $ cd re-crypt # place your u-boot-dtb-tegra.bin here
+ $ ./re-crypt.py --dev p895
+
+The script will produce a ``repart-block.bin`` ready to flash.
+
+Processing for pre-loaded U-Boot
+********************************
-Script will produce you a ``repart-block.bin`` ready to flash.
+The procedure is the same, but the ``--split`` argument is used with the
+``re-crypt.py``. The script will produce ``bct.img`` and ``ebt.img`` ready
+to flash.
-Flash repart-block into the eMMC
---------------------------------
+Flashing U-Boot into the eMMC
+-----------------------------
-``DISCLAMER!`` All questions related to NvFlash should be asked
-in the proper place. NOT HERE! Flashing repart-block will erase
-all your eMMC, so make a backup before!
+``DISCLAMER!`` All questions related to NvFlash should be asked in the proper
+place. NOT HERE! Flashing U-Boot will erase all eMMC, so make a backup before!
-``repart-block.bin`` contains BCT and bootloader in encrypted state
-in form which can just be written RAW at the start of eMMC.
+Permanent installation can be performed either by using the nv3p protocol or by
+pre-loading just built U-Boot into RAM.
+
+Flashing with the NV3P protocol
+*******************************
+
+Nv3p is a custom Nvidia protocol used to recover bricked devices. Devices can
+enter it either by using ``wheelie`` with the correct ``blob.bin`` file or by
+pre-loading vendor bootloader with the Fusée Gelée.
+
+With nv3p, ``repart-block.bin`` is used. It contains BCT and a bootloader in
+encrypted state in form, which can just be written RAW at the start of eMMC.
.. code-block:: bash
$ wheelie --blob blob.bin
$ nvflash --resume --rawdevicewrite 0 1024 repart-block.bin
+When flashing is done, reboot the device.
+
+Flashing with a pre-loaded U-Boot
+*********************************
+
+U-Boot pre-loaded into RAM acts the same as when it was booted "cold". Currently
+U-Boot supports bootmenu entry fastboot, which allows to write a processed copy
+of U-Boot permanently into eMMC.
+
+While pre-loading U-Boot, hold the ``volume down`` button which will trigger
+the bootmenu. There, select ``fastboot`` using the volume and power buttons.
+After, on host PC, do:
+
+.. code-block:: bash
+
+ $ fastboot flash 0.1 bct.img
+ $ fastboot flash 0.2 ebt.img
+ $ fastboot reboot
+
+Device will reboot.
+
Boot
----
-After flashing ``repart-block.bin`` the device should reboot and turn
-itself off. This is normal behavior if no boot configuration is
-found.
-
-To boot Linux, U-Boot will look for an ``extlinux.conf`` on MicroSD
-and then on eMMC. Additionally if Volume Down button is pressed
-while booting device will enter bootmenu. Bootmenu contains entries
-to mount MicroSD and eMMC as mass storage, fastboot, reboot, reboot
-RCM, poweroff, enter U-Boot console and update bootloader (check next
-chapter).
+To boot Linux, U-Boot will look for an ``extlinux.conf`` on eMMC. Additionally,
+if the Volume Down button is pressed while booting, the device will enter
+bootmenu. Bootmenu contains entries to mount eMMC as mass storage, fastboot,
+reboot, reboot RCM, poweroff, enter U-Boot console and update bootloader (check
+the next chapter).
-Flashing ``repart-block.bin`` eliminates vendor restriction on eMMC
-and allows the user to use/partition it in any way the user desires.
+Flashing ``repart-block.bin`` eliminates vendor restrictions on eMMC and allows
+the user to use/partition it in any way the user desires.
Self Upgrading
--------------
-Place your ``u-boot-dtb-tegra.bin`` on the first partition of the
-eMMC (using ability of u-boot to mount it). Enter bootmenu, choose
-update bootloader option with Power button and U-Boot should update
-itself. Once the process is completed, U-Boot will ask to press any
-button to reboot.
+Place your ``u-boot-dtb-tegra.bin`` on the first partition of the eMMC (using
+ability of u-boot to mount it). Enter bootmenu, choose update bootloader option
+with Power button and U-Boot should update itself. Once the process is
+completed, U-Boot will ask to press any button to reboot.
projects / u-boot.git / commitdiff
