[PATCH v4 05/16] efi_loader: add option to initialise EFI subsystem early

[AKASHI Takahiro]

If this option, CONFIG_EFI_SETUP_EARLY, is enabled, the initialisation
of UEFI subsystem will be done as part of U-Boot initialisation.

Please note that this option won't be enabled explicitly by users,
instead, should be enabled implicitly by other configuration options.

Specifically, this feature will be utilised in implementing capsule-on-disk
feature.

Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
---
 common/board_r.c       | 6 ++++++
 lib/efi_loader/Kconfig | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/common/board_r.c b/common/board_r.c
index 67dc25c7d282..9994ee34b585 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -68,6 +68,9 @@
 #if defined(CONFIG_GPIO_HOG)
 #include <asm/gpio.h>
 #endif
+#ifdef CONFIG_EFI_SETUP_EARLY
+#include <efi_loader.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -844,6 +847,9 @@ static init_fnc_t init_sequence_r[] = {
 #endif
 #if defined(CONFIG_M68K) && defined(CONFIG_BLOCK_CACHE)
 	blkcache_init,
+#endif
+#ifdef CONFIG_EFI_SETUP_EARLY
+	(init_fnc_t)efi_init_obj_list,
 #endif
 	run_main_loop,
 };
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index bad1a29ba804..cbd8fe8c0ad2 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -27,6 +27,10 @@ config EFI_LOADER
 
 if EFI_LOADER
 
+config EFI_SETUP_EARLY
+	bool
+	default n
+
 choice
 	prompt "Store for non-volatile UEFI variables"
 	default EFI_VARIABLE_FILE_STORE
-- 
2.27.0