Changes between Initial Version and Version 1 of malibu/bootloader

Timestamp:

02/29/2024 09:31:55 PM (3 months ago)

Author:

Tim Harvey

Comment:

created a dedicated page for malibu uboot

malibu/bootloader

@@ +1 @@
+[[PageOutline]]
+
+
+[=#u-boot]
+== U-Boot Bootloader
+Gateworks supports the U-Boot Bootloader for the Malibu product family.
+
+The purpose of a bootloader is to load the Linux kernel and execute it passing it configuration parameters such as an optional kernel command-line, an optional initial ramdisk filesystem, and a device-tree.
+
+The following items are supported in the Gateworks U-Boot for Malibu:
+ - eth0 (RGMII)
+ - USB Host mode (USB Mass Storage and USB Networking for various USB Ethernet adapters supported by U-Boot
+ - eMMC / microSD
+
+The following items are not currently supported in the Gateworks U-Boot for Malibu:
+- PCIe support
+- USB device mode support (for USB OTG)
+
+
+Additional resources:
+ * [http://dev.gateworks.com/malibu/boot_firmware/ Pre-built boot firmware (updated from U-Boot/Linux)]
+ * [http://dev.gateworks.com/malibu/images/ firmware-malibu* JTAG binaries]
+ * [https://github.com/Gateworks/uboot-malibu source]
+
+see [wiki:uboot] for more info
+
+
+[=#default]
+== Restoring defaults 
+The Malibu boot firmware has a copy of the original U-Boot env that was created during build time.
+
+To restore default bootloader environment variables:
+
+- At the "Hit any key to stop autoboot:" prompt press any key.
+
+- Execute the following command:
+{{{#!bash
+run restore_env && reset
+}}}
+
+== Editing the environment
+If you would like to modify the default environment you can edit the [https://github.com/Gateworks/malibu-bsp/blob/main/malibu.env malibu.env] in the Malibu BSP.