x86: Drop the unnecessary base_ptr argument to zboot_dump()

This value is include the bootm_info, so drop the unnecessary parameter.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c
index d71285e..145ba0b 100644
--- a/arch/x86/lib/zimage.c
+++ b/arch/x86/lib/zimage.c
@@ -554,12 +554,13 @@
 	printf("\n");
 }
 
-void zimage_dump(struct bootm_info *bmi, struct boot_params *base_ptr,
-		 bool show_cmdline)
+void zimage_dump(struct bootm_info *bmi, bool show_cmdline)
 {
+	struct boot_params *base_ptr;
 	struct setup_header *hdr;
 	int i;
 
+	base_ptr = bmi->base_ptr;
 	printf("Setup located at %p:\n\n", base_ptr);
 	print_num64("ACPI RSDP addr", base_ptr->acpi_rsdp_addr);
 
diff --git a/cmd/bootflow.c b/cmd/bootflow.c
index da17fd9..6d0be32 100644
--- a/cmd/bootflow.c
+++ b/cmd/bootflow.c
@@ -385,7 +385,8 @@
 		bootm_init(&bmi);
 		/* we don't know this at present */
 		bootm_x86_set(&bmi, bzimage_addr, 0);
-		zimage_dump(&bmi, bflow->x86_setup, false);
+		bootm_x86_set(&bmi, base_ptr, bflow->x86_setup);
+		zimage_dump(&bmi, false);
 
 		return 0;
 	}
diff --git a/cmd/x86/zboot.c b/cmd/x86/zboot.c
index 029ff4e..ee099ca 100644
--- a/cmd/x86/zboot.c
+++ b/cmd/x86/zboot.c
@@ -103,15 +103,13 @@
 static int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc,
 			 char *const argv[])
 {
-	struct boot_params *base_ptr = bmi.base_ptr;
-
 	if (argc > 1)
-		base_ptr = (void *)hextoul(argv[1], NULL);
-	if (!base_ptr) {
+		bmi.base_ptr = (void *)hextoul(argv[1], NULL);
+	if (!bmi.base_ptr) {
 		printf("No zboot setup_base\n");
 		return CMD_RET_FAILURE;
 	}
-	zimage_dump(&bmi, base_ptr, true);
+	zimage_dump(&bmi, true);
 
 	return 0;
 }
diff --git a/include/bootm.h b/include/bootm.h
index fe7f80b..c471615 100644
--- a/include/bootm.h
+++ b/include/bootm.h
@@ -342,13 +342,10 @@
  *
  * This shows all available information in a zimage that has been loaded.
  *
- * @bmi: Bootm information
- * @base_ptr: Pointer to the boot parameters, typically at address
- *	DEFAULT_SETUP_BASE
+ * @bmi: Bootm information, with valid base_ptr
  * @show_cmdline: true to show the full command line
  */
-void zimage_dump(struct bootm_info *bmi, struct boot_params *base_ptr,
-		 bool show_cmdline);
+void zimage_dump(struct bootm_info *bmi, bool show_cmdline);
 
 /*
  * bootm_boot_start() - Boot an image at the given address