X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=inline;f=doc%2FREADME.distro;h=77d5c6d4d56f90f6ba1ed237ca3927901f47d936;hb=7ffce4f17fdbb110f572dae60670ec28db731ef2;hp=9e4722a86ee562fdc80b675f5be9d30e30e61597;hpb=a70e86ffca84d2e3c8b1d8d40553cf8e3aae4896;p=u-boot diff --git a/doc/README.distro b/doc/README.distro index 9e4722a86e..77d5c6d4d5 100644 --- a/doc/README.distro +++ b/doc/README.distro @@ -162,6 +162,12 @@ U-Boot Implementation Enabling the distro options --------------------------- +In your board's defconfig, enable the DISTRO_DEFAULTS option by adding +a line with "CONFIG_DISTRO_DEFAULTS=y". If you want to enable this +from Kconfig itself, for e.g. all boards using a specific SoC then +add a "default y if ARCH_FOO" to the DISTRO_DEFAULTS section of +the Kconfig file in the root of the u-boot sources. + In your board configuration file, include the following: ------------------------------------------------------------ @@ -243,7 +249,7 @@ kernel_addr_r: A size of 16MB for the kernel is likely adequate. -pxe_addr_r: +pxefile_addr_r: Mandatory. The location in RAM where extlinux.conf will be loaded to prior to processing. @@ -341,6 +347,21 @@ scan_dev_for_scripts: If you want to disable boot.scr on all disks, set the value to something innocuous, e.g. setenv scan_dev_for_scripts true. +boot_net_usb_start: + + If you want to prevent USB enumeration by distro boot commands which execute + network operations, set the value to something innocuous, e.g. setenv + boot_net_usb_start true. This would be useful if you know your Ethernet + device is not attached to USB, and you wish to increase boot speed by + avoiding unnecessary actions. + +boot_net_pci_enum: + + If you want to prevent PCI enumeration by distro boot commands which execute + network operations, set the value to something innocuous, e.g. setenv + boot_net_pci_enum true. This would be useful if you know your Ethernet + device is not attached to PCI, and you wish to increase boot speed by + avoiding unnecessary actions. Interactively booting from a specific device at the u-boot prompt =================================================================