preboot: Introduce CONFIG_USE_PREBOOT and migrate CONFIG_PREBOOT
This is the same migration path as commit b6251db8c3f0 ("Kconfig:
Introduce USE_BOOTCOMMAND and migrate BOOTCOMMAND").
I also moved the description in README to the Kconfig help.
I ripped off the sentence about 'LWMON' since it is gone already.
I only let my boards migrate, leaving the rest to platform maintainers.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/README b/README
index 1287341..6525b81 100644
--- a/README
+++ b/README
@@ -687,22 +687,6 @@
as a convenience, when switching between booting from
RAM and NFS.
-- Pre-Boot Commands:
- CONFIG_PREBOOT
-
- When this option is #defined, the existence of the
- environment variable "preboot" will be checked
- immediately before starting the CONFIG_BOOTDELAY
- countdown and/or running the auto-boot command resp.
- entering interactive mode.
-
- This feature is especially useful when "preboot" is
- automatically generated or modified. For an example
- see the LWMON board specific code: here "preboot" is
- modified when the user holds down a certain
- combination of keys on the (special) keyboard when
- booting the systems
-
- Serial Download Echo Mode:
CONFIG_LOADS_ECHO
If defined to 1, all characters received during a
diff --git a/common/Kconfig b/common/Kconfig
index e100c22..1a1951f 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -232,6 +232,24 @@
This is the string of commands that will be used as bootcmd and if
AUTOBOOT is set, automatically run.
+config USE_PREBOOT
+ bool "Enable preboot"
+ help
+ When this option is enabled, the existence of the environment
+ variable "preboot" will be checked immediately before starting the
+ CONFIG_BOOTDELAY countdown and/or running the auto-boot command resp.
+ entering interactive mode.
+
+ This feature is especially useful when "preboot" is automatically
+ generated or modified. For example, the boot code can modify the
+ "preboot" when a user holds down a certain combination of keys.
+
+config PREBOOT
+ string "preboot default value"
+ depends on USE_PREBOOT
+ help
+ This is the default of "preboot" environment variable.
+
menu "Console"
config MENU
diff --git a/configs/uniphier_ld4_sld8_defconfig b/configs/uniphier_ld4_sld8_defconfig
index 48f7ac4..de9182e 100644
--- a/configs/uniphier_ld4_sld8_defconfig
+++ b/configs/uniphier_ld4_sld8_defconfig
@@ -10,6 +10,8 @@
CONFIG_NR_DRAM_BANKS=3
# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
CONFIG_BOOTCOMMAND="run ${bootdev}script; run ${bootdev}boot"
+CONFIG_USE_PREBOOT=y
+CONFIG_PREBOOT="env exist ${bootdev}preboot && run ${bootdev}preboot"
CONFIG_LOGLEVEL=6
CONFIG_SPL_NAND_SUPPORT=y
CONFIG_SPL_NOR_SUPPORT=y
diff --git a/configs/uniphier_v7_defconfig b/configs/uniphier_v7_defconfig
index f7abf05..bb9ce1a 100644
--- a/configs/uniphier_v7_defconfig
+++ b/configs/uniphier_v7_defconfig
@@ -9,6 +9,8 @@
CONFIG_NR_DRAM_BANKS=3
# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
CONFIG_BOOTCOMMAND="run ${bootdev}script; run ${bootdev}boot"
+CONFIG_USE_PREBOOT=y
+CONFIG_PREBOOT="env exist ${bootdev}preboot && run ${bootdev}preboot"
CONFIG_LOGLEVEL=6
CONFIG_SPL_NAND_SUPPORT=y
CONFIG_SPL_NOR_SUPPORT=y
diff --git a/configs/uniphier_v8_defconfig b/configs/uniphier_v8_defconfig
index 1ba1c7d..08dfa24 100644
--- a/configs/uniphier_v8_defconfig
+++ b/configs/uniphier_v8_defconfig
@@ -8,6 +8,8 @@
CONFIG_NR_DRAM_BANKS=3
# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
CONFIG_BOOTCOMMAND="run ${bootdev}script; run ${bootdev}boot"
+CONFIG_USE_PREBOOT=y
+CONFIG_PREBOOT="env exist ${bootdev}preboot && run ${bootdev}preboot"
CONFIG_LOGLEVEL=6
CONFIG_CMD_CONFIG=y
CONFIG_CMD_IMLS=y
diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index 95d6452..1e509ce 100644
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -124,8 +124,6 @@
"third_image=u-boot.bin\0"
#endif
-#define CONFIG_PREBOOT "env exist ${bootdev}preboot && run ${bootdev}preboot"
-
#define CONFIG_ROOTPATH "/nfs/root/path"
#define CONFIG_NFSBOOTCOMMAND \
"setenv bootargs $bootargs root=/dev/nfs rw " \