[U-Boot] [PATCH 5/6] bootefi: carve out fdt parameter handling

[AKASHI Takahiro]

The current way how command parameters, particularly "fdt addr," are
handled makes it a bit complicated to add a subcommand-specific parameter.
So just refactor the code and extract efi_handle_fdt().

This commit is a preparatory change for enhancing bootmgr sub-command.

Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
---
 cmd/bootefi.c | 51 ++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 34 insertions(+), 17 deletions(-)

diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index b3e2845120fe..5772f7422e5f 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -349,6 +349,31 @@ static efi_status_t efi_install_fdt(ulong fdt_addr)
 	return ret;
 }
 
+static int efi_handle_fdt(char *fdt_opt)
+{
+	unsigned long fdt_addr;
+	efi_status_t r;
+
+	if (fdt_opt) {
+		fdt_addr = simple_strtoul(fdt_opt, NULL, 16);
+		if (!fdt_addr && *fdt_opt != '0')
+			return CMD_RET_USAGE;
+
+		/* Install device tree */
+		r = efi_install_fdt(fdt_addr);
+		if (r != EFI_SUCCESS) {
+			printf("ERROR: failed to install device tree\n");
+			return CMD_RET_FAILURE;
+		}
+	} else {
+		/* Remove device tree. EFI_NOT_FOUND can be ignored here */
+		efi_install_configuration_table(&efi_guid_fdt, NULL);
+		printf("WARNING: booting without device tree\n");
+	}
+
+	return CMD_RET_SUCCESS;
+}
+
 /**
  * do_bootefi_exec() - execute EFI binary
  *
@@ -516,7 +541,6 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	unsigned long addr;
 	char *saddr;
 	efi_status_t r;
-	unsigned long fdt_addr;
 
 	/* Allow unaligned memory access */
 	allow_unaligned();
@@ -532,21 +556,6 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	if (argc < 2)
 		return CMD_RET_USAGE;
 
-	if (argc > 2) {
-		fdt_addr = simple_strtoul(argv[2], NULL, 16);
-		if (!fdt_addr && *argv[2] != '0')
-			return CMD_RET_USAGE;
-		/* Install device tree */
-		r = efi_install_fdt(fdt_addr);
-		if (r != EFI_SUCCESS) {
-			printf("ERROR: failed to install device tree\n");
-			return CMD_RET_FAILURE;
-		}
-	} else {
-		/* Remove device tree. EFI_NOT_FOUND can be ignored here */
-		efi_install_configuration_table(&efi_guid_fdt, NULL);
-		printf("WARNING: booting without device tree\n");
-	}
 #ifdef CONFIG_CMD_BOOTEFI_HELLO
 	if (!strcmp(argv[1], "hello")) {
 		ulong size = __efi_helloworld_end - __efi_helloworld_begin;
@@ -564,6 +573,9 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		struct efi_loaded_image_obj *image_handle;
 		struct efi_loaded_image *loaded_image_info;
 
+		if (efi_handle_fdt(argc > 2 ? argv[2] : NULL))
+			return CMD_RET_FAILURE;
+
 		/* Construct a dummy device path. */
 		bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
 						      (uintptr_t)&efi_selftest,
@@ -593,7 +605,10 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	} else
 #endif
 	if (!strcmp(argv[1], "bootmgr")) {
-		return do_bootefi_bootmgr_exec();
+		if (efi_handle_fdt(argc > 2 ? argv[2] : NULL))
+			return CMD_RET_FAILURE;
+
+		return do_bootefi_bootmgr_exec(boot_id);
 	} else {
 		saddr = argv[1];
 
@@ -602,6 +617,8 @@ static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		if (!addr && *saddr != '0')
 			return CMD_RET_USAGE;
 
+		if (efi_handle_fdt(argc > 2 ? argv[2] : NULL))
+			return CMD_RET_FAILURE;
 	}
 
 	printf("## Starting EFI application at %08lx ...\n", addr);
-- 
2.19.0