[PATCH v4] spl: remove usage of CMD_BOOT[IZ] from image parsing

[Anshul Dalal]

Using CMD_* configs from spl doesn't make logical sense. Therefore this
patch replaces the checks for CMD_BOOT[IZ] with newly added configs
SPL_HAS_BOOT[IZ].

An imply clause has been added for CMD_BOOTZ to avoid breaking configs
that rely on CMD_BOOTZ in falcon boot. There is no such need for
CMD_BOOTI since it's already enabled by default for the platforms that
support the image format.

More info:
https://lore.kernel.org/u-boot/20250310135544.GV2640854@bill-the-cat/

Signed-off-by: Anshul Dalal <anshuld at ti.com>
---
Changes in v4:
 * Don't set SPL_HAS_BOOTI for sandbox by default
 * Updated prompts for SPL_HAS_BOOT[IZ]
 * Removed check for SPL_HAS_FRAMEWORK from Makefile
v3: https://lore.kernel.org/u-boot/20250312124757.789013-1-anshuld@ti.com/
Changes in v3:
 * Add imply clause for CMD_BOOTZ to enable SPL_HAS_BOOTZ
 * Fix broken check for bootz_setup
v2: https://lore.kernel.org/u-boot/20250312094241.629707-1-anshuld@ti.com/
Changes in v2:
 * Add SPL_HAS_BOOT[IZ] configs
v1: https://lore.kernel.org/u-boot/20250311093709.3372104-1-anshuld@ti.com/
---
 arch/arm/lib/Makefile |  6 ++----
 cmd/Kconfig           |  1 +
 common/spl/Kconfig    | 13 +++++++++++++
 common/spl/spl.c      |  5 +++--
 4 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 1c95dd6fed2..e409f7a7947 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -35,10 +35,8 @@ obj-$(CONFIG_CMD_BOOTM) += bootm.o
 obj-$(CONFIG_CMD_BOOTZ) += bootm.o zimage.o
 else
 obj-$(CONFIG_$(PHASE_)FRAMEWORK) += spl.o
-ifdef CONFIG_SPL_FRAMEWORK
-obj-$(CONFIG_CMD_BOOTI) += image.o
-obj-$(CONFIG_CMD_BOOTZ) += zimage.o
-endif
+obj-$(CONFIG_SPL_HAS_BOOTI) += image.o
+obj-$(CONFIG_SPL_HAS_BOOTZ) += zimage.o
 obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
 endif
 ifdef CONFIG_ARM64
diff --git a/cmd/Kconfig b/cmd/Kconfig
index a04fcaa0e08..9f2ba4d02f8 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -352,6 +352,7 @@ config BOOTM_ELF
 
 config CMD_BOOTZ
 	bool "bootz"
+	imply SPL_HAS_BOOTZ
 	help
 	  Boot the Linux zImage
 
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 21a5cefee7a..49eb513f923 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -1153,6 +1153,19 @@ config SPL_OS_BOOT
 	  Enable booting directly to an OS from SPL.
 	  for more info read doc/README.falcon
 
+config SPL_HAS_BOOTZ
+	bool "Allow booting a zImage style Linux kernel from SPL"
+	depends on SPL_OS_BOOT
+	help
+	  Boot a linux zimage from memory in falcon boot.
+
+config SPL_HAS_BOOTI
+	bool "Allow booting an Image style Linux kernel from SPL"
+	depends on SPL_OS_BOOT
+	default y if ARM64 || RISCV
+	help
+	  Boot an uncompressed linux kernel image from memory in falcon boot.
+
 config SPL_PAYLOAD_ARGS_ADDR
 	hex "Address in memory to load 'args' file for Falcon Mode to"
 	depends on SPL_OS_BOOT || SPL_LOAD_FIT_OPENSBI_OS_BOOT
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 76fd56dfe4b..445c3ef24fe 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -335,7 +335,7 @@ int spl_parse_image_header(struct spl_image_info *spl_image,
 		panic("** no mkimage signature but raw image not supported");
 	}
 
-	if (CONFIG_IS_ENABLED(OS_BOOT) && IS_ENABLED(CONFIG_CMD_BOOTI)) {
+	if (CONFIG_IS_ENABLED(OS_BOOT) && IS_ENABLED(CONFIG_SPL_HAS_BOOTI)) {
 		ulong start, size;
 
 		if (!booti_setup((ulong)header, &start, &size, 0)) {
@@ -349,7 +349,8 @@ int spl_parse_image_header(struct spl_image_info *spl_image,
 			      spl_image->load_addr, spl_image->size);
 			return 0;
 		}
-	} else if (CONFIG_IS_ENABLED(OS_BOOT) && IS_ENABLED(CONFIG_CMD_BOOTZ)) {
+	} else if (CONFIG_IS_ENABLED(OS_BOOT) &&
+		   IS_ENABLED(CONFIG_SPL_HAS_BOOTZ)) {
 		ulong start, end;
 
 		if (!bootz_setup((ulong)header, &start, &end)) {
-- 
2.43.0