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authorSimon Glass <sjg@chromium.org>2021-09-09 14:10:32 -0600
committerHeinrich Schuchardt <xypron.glpk@gmx.de>2021-09-11 11:02:02 +0200
commit19e699fb2b7357f2f71ac928499cbb4442f5d576 (patch)
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parent8eb4a76d85d3b337f65132022b518e5798aa2472 (diff)
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doc: Complete the list of available runtime-config options
The current list is missing a few items. Add them. Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree-bindings/config.txt45
1 files changed, 45 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/config.txt b/doc/device-tree-bindings/config.txt
index f704eb6..85379fb 100644
--- a/doc/device-tree-bindings/config.txt
+++ b/doc/device-tree-bindings/config.txt
@@ -13,6 +13,30 @@ is built.
Available options are:
+bootcmd (string)
+ Allows overwriting of the boot command used by U-Boot on startup. If
+ present, U-Boot uses this command instead. Note that this feature can
+ work even if loading the environment is disabled, e.g. for security
+ reasons. See also bootsecure.
+
+bootdelay (int)
+ This allows selecting of the U-Boot bootdelay, to control whether U-Boot
+ waits on boot or for how long. This allows this option to be configured
+ by the build system or by a previous-stage binary. For example, if the
+ images is being packed for testing or a user holds down a button, it may
+ allow a delay, but disable it for production.
+
+u-boot,boot-led (string)
+u-boot,error-led (string)
+ This is used to specify the label for an LED to indicate an error and
+ a successful boot, on supported hardware.
+
+bootsecure (int)
+ Indicates that U-Boot should use secure_boot_cmd() to run commands,
+ rather than the normal CLI. This can be used in production images, to
+ restrict the amount of parsing done or the options available, to cut
+ back on the available surface for security attacks.
+
u-boot,efi-partition-entries-offset (int)
If present, this provides an offset (in bytes, from the start of a
device) that should be skipped over before the partition entries.
@@ -21,6 +45,16 @@ u-boot,efi-partition-entries-offset (int)
This setting will override any values configured via Kconfig.
+kernel-offset (int)
+ This allows setting the 'kernaddr' environment variable, used to select
+ the address to load the kernel. It is useful for systems that use U-Boot
+ to flash a device, so the scripts that do this know where to put the
+ kernel to be flashed.
+
+load-environment (int)
+ Allows control over whether U-Boot loads its environment after
+ relocation (0=no, 1 or not present=yes).
+
u-boot,mmc-env-offset (int)
u-boot,mmc-env-offset-redundant (int)
If present, the values of the 'u-boot,mmc-env-offset' and/or
@@ -42,9 +76,20 @@ u-boot,mmc-env-partition (int)
precedence. In that case, only if the partition is not found,
mmc-env-offset* will be tried.
+u-boot,no-apm-finalize (bool)
+ For x86 devices running on coreboot, this tells U-Boot not to lock
+ down the Intel Management Engine (ME) registers. This allows U-Boot to
+ access the hardware more fully for platforms that need it.
+
u-boot,no-keyboard (bool)
Tells U-Boot not to expect an attached keyboard with a VGA console.
+rootdisk-offset (int)
+ This allows setting the 'rootdisk' environment variable, used to select
+ the address to load the rootdisk. It is useful for systems that use
+ U-Boot to flash a device, so the scripts that do this know where to put
+ the root disk to be flashed.
+
silent-console (int)
If present and non-zero, the console is silenced by default on boot.