From 6a7944fac73f977eb71755da8d3d1bfd98f0d74a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Lothar=20Wa=C3=9Fmann?= Date: Wed, 14 May 2014 10:39:28 +0200 Subject: [PATCH] doc: karo: added description of boot_mode variable --- doc/README.KARO-TX28 | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/doc/README.KARO-TX28 b/doc/README.KARO-TX28 index ec63696515..c5a1fe13ad 100644 --- a/doc/README.KARO-TX28 +++ b/doc/README.KARO-TX28 @@ -47,6 +47,25 @@ U-Boot Features --------------- Environment variables: +boot_mode selects which boot script will be used by 'bootcmd' to + boot the application (Linux) + supported values: + nand: (default) load kernel from NAND partition 'linux' + and mount rootfs (fstype UBIFS) + from partition 'rootfs'. + mmc: load kernel from file 'uImage' on first + partition (FAT) on (first) SD/MMC card + and mount rootfs (fstype autodetected) + from second partition. + net: load kernel image via tftp (file uImage) + and mount rootfs via NFS. This requires + the additional variables 'nfsroot' + (path to rootfs on NFS server) and + 'nfs_server' (hostname or IP address of + NFS server) to be set. + jffs2: (legacy) load kernel from NAND partition 'linux' + and mount rootfs (fstype JFFS2) + from partition 'rootfs'. cpu_clk CPU clock frequency set after boot. -- 2.39.2