boot: Move extension board support from cmd/ to boot/

Relocate extension board support from cmd/ to boot/ directory in
preparation for converting the extension framework to use UCLASS.
Also improve code style by applying reverse xmas tree ordering.

Signed-off-by: Kory Maincent (TI.com) <[email protected]>

2 files changed, 3 insertions, 99 deletions

diff --git a/cmd/Kconfig b/cmd/Kconfig
index 29de857ba7c..986eeeba807 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -545,9 +545,6 @@ config CMD_FDT
 	help
 	  Do FDT related setup before booting into the Operating System.
 
-config SUPPORT_EXTENSION_SCAN
-	bool
-
 config CMD_EXTENSION
 	bool "Extension board management command"
 	select CMD_FDT
diff --git a/cmd/extension_board.c b/cmd/extension_board.c
index 317b260bf36..129f3db9e4c 100644
--- a/cmd/extension_board.c
+++ b/cmd/extension_board.c
@@ -4,68 +4,15 @@
  * Köry Maincent, Bootlin, <[email protected]>
  */
 
-#include <bootdev.h>
+#include <exports.h>
 #include <command.h>
-#include <dm.h>
-#include <env.h>
-#include <malloc.h>
 #include <extension_board.h>
-#include <mapmem.h>
-#include <linux/libfdt.h>
-#include <fdt_support.h>
-
-static LIST_HEAD(extension_list);
-
-static int extension_apply(struct extension *extension)
-{
-	char *overlay_cmd;
-	ulong extrasize, overlay_addr;
-	struct fdt_header *blob;
-
-	if (!working_fdt) {
-		printf("No FDT memory address configured. Please configure\n"
-		       "the FDT address via \"fdt addr <address>\" command.\n");
-		return CMD_RET_FAILURE;
-	}
-
-	overlay_cmd = env_get("extension_overlay_cmd");
-	if (!overlay_cmd) {
-		printf("Environment extension_overlay_cmd is missing\n");
-		return CMD_RET_FAILURE;
-	}
-
-	overlay_addr = env_get_hex("extension_overlay_addr", 0);
-	if (!overlay_addr) {
-		printf("Environment extension_overlay_addr is missing\n");
-		return CMD_RET_FAILURE;
-	}
-
-	env_set("extension_overlay_name", extension->overlay);
-	if (run_command(overlay_cmd, 0) != 0)
-		return CMD_RET_FAILURE;
-
-	extrasize = env_get_hex("filesize", 0);
-	if (!extrasize)
-		return CMD_RET_FAILURE;
-
-	fdt_shrink_to_minimum(working_fdt, extrasize);
-
-	blob = map_sysmem(overlay_addr, 0);
-	if (!fdt_valid(&blob))
-		return CMD_RET_FAILURE;
-
-	/* apply method prints messages on error */
-	if (fdt_overlay_apply_verbose(working_fdt, blob))
-		return CMD_RET_FAILURE;
-
-	return CMD_RET_SUCCESS;
-}
 
 static int do_extension_list(struct cmd_tbl *cmdtp, int flag,
 			     int argc, char *const argv[])
 {
-	int i = 0;
 	struct extension *extension;
+	int i = 0;
 
 	if (list_empty(&extension_list)) {
 		printf("No extension registered - Please run \"extension scan\"\n");
@@ -82,23 +29,6 @@ static int do_extension_list(struct cmd_tbl *cmdtp, int flag,
 	return CMD_RET_SUCCESS;
 }
 
-static int extension_scan(bool show)
-{
-	struct extension *extension, *next;
-	int extension_num;
-
-	list_for_each_entry_safe(extension, next, &extension_list, list) {
-		list_del(&extension->list);
-		free(extension);
-	}
-	extension_num = extension_board_scan(&extension_list);
-	if (show && extension_num >= 0)
-		printf("Found %d extension board(s).\n", extension_num);
-
-	/* either the number of extensions, or -ve for error */
-	return extension_num;
-}
-
 static int do_extension_scan(struct cmd_tbl *cmdtp, int flag,
 			     int argc, char *const argv[])
 {
@@ -115,8 +45,8 @@ static int do_extension_apply(struct cmd_tbl *cmdtp, int flag,
 			      int argc, char *const argv[])
 {
 	struct extension *extension = NULL;
-	struct list_head *entry;
 	int i = 0, extension_id, ret;
+	struct list_head *entry;
 
 	if (argc < 2)
 		return CMD_RET_USAGE;
@@ -177,26 +107,3 @@ U_BOOT_CMD(extension, 3, 1, do_extensionops,
 	"extension list - lists available extension(s) board(s)\n"
 	"extension apply <extension number|all> - applies DT overlays corresponding to extension boards\n"
 );
-
-static int extension_bootdev_hunt(struct bootdev_hunter *info, bool show)
-{
-	int ret;
-
-	ret = env_set_hex("extension_overlay_addr",
-			  env_get_hex("fdtoverlay_addr_r", 0));
-	if (ret)
-		return log_msg_ret("env", ret);
-
-	ret = extension_scan(show);
-	if (ret < 0)
-		return log_msg_ret("ext", ret);
-
-	return 0;
-}
-
-/* extensions should have a uclass - for now we use UCLASS_SIMPLE_BUS uclass */
-BOOTDEV_HUNTER(extension_bootdev_hunter) = {
-	.prio		= BOOTDEVP_1_PRE_SCAN,
-	.uclass		= UCLASS_SIMPLE_BUS,
-	.hunt		= extension_bootdev_hunt,
-};