Provided by: tegrarcm_1.2-2_amd64
NAME
tegrarcm - tegra firmware download utility
SYNOPSIS
tegrarcm [ options ]
DESCRIPTION
This program is used to send code to a Tegra device in recovery mode. It does not supported locked devices with an encrypted boot key, only open devices such as the ventana or cardhu reference boards. It is not capable of flashing firmware to a device, but can be used to download firmware that is then capable of flashing. For example in ChromeOS tegrarcm is used to download a special build of u-boot to the target Tegra device with a payload that it then flashes to the boot device. Platforms supported • Tegra20 • Tegra30 • Tegra114 How to use — Connect a USB cable from your development system to your Tegra device. You will either need a USB A to A cable or A to micro B depending on the target board. — Find the appropriate BCT file for your board. For reference boards, BCT files can be found in the L4T distribution from NVIDIA. — Build some firmware for your device (such as u-boot) — Run tegrarcm to download the firmware
OPTIONS
--bct bctfile Specify the BCT file to download to the Tegra device. This file contains memory configuation information for the board. BCT files can be obtained through the NVIDIA L4T distribution or generated with cbootimage and a proper configuration file. --bootloader blfile Specify the bootloader file to download to the Tegra device. This is the firmware file that will be downloaded and executed. --loadaddr loadaddr Specify the address the bootloader will be loaded at. This should be specified in hex and is typically 0x108000 for a Tegra20 device or 0x80108000 for a Tegra30 or Tegra114 device. --entryaddr entryaddr Specify the entry address that control will be passed to after the firmware is loaded. This should be specified in hex. If this option is omitted it is assumed to be the same as the load address.
EXAMPLE
To download u-boot firmware to a Tegra20 seaboard: $ sudo tegrarcm --bct seaboard.bct --bootloader u-boot.bin --loadaddr 0x108000 bct file: seaboard.bct booloader file: u-boot.bin load addr 0x108000 entry addr 0x108000 device id: 0x7820 uid: 0x33c20c0413fb217 RCM version: 2.1 downloading miniloader to target... miniloader downloaded successfully Chip UID: 0x33c20c0413fb217 Chip ID: 0x20 Chip ID Major Version: 0x1 Chip ID Minor Version: 0x4 Chip SKU: 0x18 (t25) Boot ROM Version: 0x1 Boot Device: 0x3 (SPI) Operating Mode: 0x3 (developer mode) Device Config Strap: 0x0 Device Config Fuse: 0x0 SDRAM Config Strap: 0x0 sending file: seaboard.bct - 4080/4080 bytes sent seaboard.bct sent successfully sending file: u-boot.bin - 268314/268314 bytes sent u-boot.bin sent successfully
RETURN VALUE
If any error occurs a non zero exit status is returned.
SEE ALSO
cbootimage(1),
AUTHOR
Allen Martin, <amartin@nvidia.com>