The cyclic subsystem is currently enabled either in all build phases or none. For tools this should not be enabled, but since lib/shc256.c and other files include watchdog.h in the host build, we must make sure that it is not enabled there.
Add an SPL symbol so that there is more control of this.
Add an include into cyclic.h so that tools can include this file.
Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Devarsh Thakkar devarsht@ti.com Reviewed-by: Stefan Roese sr@denx.de ---
Changes in v4: - Imply SPL_CYCLIC if WATCHDOG is enabled
Changes in v3: - Drop inclusion of kconfig.h in cyclic.h
Changes in v2: - Add an SPL_CYCLIC symbol - Add a lot more explanation about the header files
common/Kconfig | 8 ++++++++ common/Makefile | 2 +- drivers/watchdog/Kconfig | 2 ++ include/asm-generic/global_data.h | 2 +- include/cyclic.h | 5 +++-- 5 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/common/Kconfig b/common/Kconfig index 4bb9f08977a..87b0ec3ea8f 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -626,6 +626,14 @@ config CYCLIC
if CYCLIC
+config SPL_CYCLIC + bool "General-purpose cyclic execution mechanism (SPL)" + help + This enables a general-purpose cyclic execution infrastructure in SPL, + to allow "small" (run-time wise) functions to be executed at + a specified frequency. Things like LED blinking or watchdog + triggering are examples for such tasks. + config CYCLIC_MAX_CPU_TIME_US int "Sets the max allowed time for a cyclic function in us" default 5000 diff --git a/common/Makefile b/common/Makefile index e9835473420..d871113cbb9 100644 --- a/common/Makefile +++ b/common/Makefile @@ -79,7 +79,7 @@ obj-$(CONFIG_CROS_EC) += cros_ec.o obj-y += dlmalloc.o obj-$(CONFIG_$(SPL_TPL_)SYS_MALLOC_F) += malloc_simple.o
-obj-$(CONFIG_CYCLIC) += cyclic.o +obj-$(CONFIG_$(SPL_TPL_)CYCLIC) += cyclic.o obj-$(CONFIG_$(SPL_TPL_)EVENT) += event.o
obj-$(CONFIG_$(SPL_TPL_)HASH) += hash.o diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 8318fd77a32..0c3e9913318 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -4,6 +4,7 @@ config WATCHDOG bool "Enable U-Boot watchdog reset" depends on !HW_WATCHDOG select CYCLIC + imply SPL_CYCLIC if SPL help This option enables U-Boot watchdog support where U-Boot is using watchdog_reset function to service watchdog device in U-Boot. Enable @@ -408,6 +409,7 @@ config WDT_ARM_SMC config SPL_WDT bool "Enable driver model for watchdog timer drivers in SPL" depends on SPL_DM + select SPL_CYCLIC if CYCLIC help Enable driver model for watchdog timer in SPL. This is similar to CONFIG_WDT in U-Boot. diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index aa336d63e3a..27aa75e7036 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -481,7 +481,7 @@ struct global_data { */ struct event_state event_state; #endif -#ifdef CONFIG_CYCLIC +#if CONFIG_IS_ENABLED(CYCLIC) /** * @cyclic_list: list of registered cyclic functions */ diff --git a/include/cyclic.h b/include/cyclic.h index 2c3d383c5ef..cd95b691d48 100644 --- a/include/cyclic.h +++ b/include/cyclic.h @@ -46,7 +46,8 @@ struct cyclic_info { /** Function type for cyclic functions */ typedef void (*cyclic_func_t)(struct cyclic_info *c);
-#if defined(CONFIG_CYCLIC) +#if CONFIG_IS_ENABLED(CYCLIC) + /** * cyclic_register - Register a new cyclic function * @@ -123,6 +124,6 @@ static inline int cyclic_unregister_all(void) { return 0; } -#endif +#endif /* CYCLIC */
#endif