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-rw-r--r--doc/README.autoboot43
1 files changed, 22 insertions, 21 deletions
diff --git a/doc/README.autoboot b/doc/README.autoboot
index c763578486..c971bb141d 100644
--- a/doc/README.autoboot
+++ b/doc/README.autoboot
@@ -67,13 +67,13 @@ What they do
CONFIG_BOOT_RETRY_TIME
CONFIG_BOOT_RETRY_MIN
- bootretry environment variable
+ "bootretry" environment variable
These options determine what happens after autoboot is
stopped and U-Boot is waiting for commands.
CONFIG_BOOT_RETRY_TIME must be defined to enable the boot
- retry feature. If the environment variable 'bootretry' is
+ retry feature. If the environment variable "bootretry" is
found then its value is used, otherwise the retry timeout is
CONFIG_BOOT_RETRY_TIME. CONFIG_BOOT_RETRY_MIN is optional and
defaults to CONFIG_BOOT_RETRY_TIME. All times are in seconds.
@@ -87,7 +87,7 @@ What they do
If CONFIG_BOOT_RETRY_TIME < 0 the feature is there, but
doesn't do anything unless the environment variable
- 'bootretry' is >= 0.
+ "bootretry" is >= 0.
CONFIG_AUTOBOOT_KEYED
CONFIG_AUTOBOOT_PROMPT
@@ -96,10 +96,10 @@ What they do
CONFIG_AUTOBOOT_DELAY_STR2
CONFIG_AUTOBOOT_STOP_STR2
- bootdelaykey environment variable
- bootstopkey environment variable
- bootdelaykey2 environment variable
- bootstopkey2 environment variable
+ "bootdelaykey" environment variable
+ "bootstopkey" environment variable
+ "bootdelaykey2" environment variable
+ "bootstopkey2" environment variable
These options give more control over stopping autoboot. When
they are used a specific character or string is required to
@@ -119,17 +119,17 @@ What they do
down the seconds. "autoboot in %d seconds\n" is a reasonable
prompt.
- If CONFIG_AUTOBOOT_DELAY_STR or bootdelaykey is specified and
- this string is received from console input before autoboot
- starts booting, U-Boot gives a command prompt. The U-Boot
- prompt will time out if CONFIG_BOOT_RETRY_TIME is used,
- otherwise it never times out.
+ If CONFIG_AUTOBOOT_DELAY_STR or "bootdelaykey" is specified
+ and this string is received from console input before
+ autoboot starts booting, U-Boot gives a command prompt. The
+ U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is
+ used, otherwise it never times out.
- If CONFIG_AUTOBOOT_STOP_STR or bootstopkey is specified and
- this string is received from console input before autoboot
- starts booting, U-Boot gives a command prompt. The U-Boot
- prompt never times out, even if CONFIG_BOOT_RETRY_TIME is
- used.
+ If CONFIG_AUTOBOOT_STOP_STR or "bootstopkey" is specified and
+ this string is received from console input before autoboot
+ starts booting, U-Boot gives a command prompt. The U-Boot
+ prompt never times out, even if CONFIG_BOOT_RETRY_TIME is
+ used.
The string recognition is not very sophisticated. If a
partial match is detected, the first non-matching character
@@ -138,10 +138,11 @@ What they do
character of a key string does not appear in the rest of the
string.
- Using the CONFIG_AUTOBOOT_DELAY_STR2 / bootdelaykey2 and/or
- CONFIG_AUTOBOOT_STOP_STR2 / bootstopkey #defines and/or
- environment variables you can specify a second, alternate
- string (which allows you to have two "password" strings).
+ Using the CONFIG_AUTOBOOT_DELAY_STR2 #define or the
+ "bootdelaykey2" environment variable and/or the
+ CONFIG_AUTOBOOT_STOP_STR2 #define or the "bootstopkey"
+ environment variable you can specify a second, alternate
+ string (which allows you to have two "password" strings).
CONFIG_ZERO_BOOTDELAY_CHECK