bootm: Use selected configuration for ramdisk and fdt

If a specific configuraion is selected by the bootm command, e.g. with
'bootm 84000000#recoveryconf' we must honour this for not just the kernel,
but also the ramdisk and FDT.

In the conversion to using a common fit_image_load() function for loading
images from FITs (commits a51ec63 and 53f375f) this feature was lost.
Reinstate it by passing the selected configuration back from
fit_image_load() to boot_get_kernel(), then use this configuration
(which is stored in images->fit_uname_cfg) in both boot_get_ramdisk()
and boot_get_fdt().

Signed-off-by: Simon Glass <sjg@chromium.org>

common/cmd_bootm.c

@@ -988,7 +988,7 @@ static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 	case IMAGE_FORMAT_FIT:
 		os_noffset = fit_image_load(images, FIT_KERNEL_PROP,
 				img_addr,
-				&fit_uname_kernel, fit_uname_config,
+				&fit_uname_kernel, &fit_uname_config,
 				IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 				BOOTSTAGE_ID_FIT_KERNEL_START,
 				FIT_LOAD_IGNORED, os_data, os_len);
@@ -997,6 +997,7 @@ static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
 
 		images->fit_hdr_os = map_sysmem(img_addr, 0);
 		images->fit_uname_os = fit_uname_kernel;
+		images->fit_uname_cfg = fit_uname_config;
 		images->fit_noffset_os = os_noffset;
 		break;
 #endif

common/image-fdt.c

@@ -243,7 +243,7 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
 	ulong		load, load_end;
 	void		*buf;
 #if defined(CONFIG_FIT)
-	const char	*fit_uname_config = NULL;
+	const char	*fit_uname_config = images->fit_uname_cfg;
 	const char	*fit_uname_fdt = NULL;
 	ulong		default_addr;
 	int		fdt_noffset;
@@ -367,7 +367,7 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
 				fdt_noffset = fit_image_load(images,
 					FIT_FDT_PROP,
 					fdt_addr, &fit_uname_fdt,
-					fit_uname_config,
+					&fit_uname_config,
 					arch, IH_TYPE_FLATDT,
 					BOOTSTAGE_ID_FIT_FDT_START,
 					FIT_LOAD_OPTIONAL, &load, &len);

common/image-fit.c

@@ -1478,12 +1478,13 @@ int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
 }
 
 int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
-		   const char **fit_unamep, const char *fit_uname_config,
+		   const char **fit_unamep, const char **fit_uname_configp,
 		   int arch, int image_type, int bootstage_id,
 		   enum fit_load_op load_op, ulong *datap, ulong *lenp)
 {
 	int cfg_noffset, noffset;
 	const char *fit_uname;
+	const char *fit_uname_config;
 	const void *fit;
 	const void *buf;
 	size_t size;
@@ -1493,6 +1494,7 @@ int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
 
 	fit = map_sysmem(addr, 0);
 	fit_uname = fit_unamep ? *fit_unamep : NULL;
+	fit_uname_config = fit_uname_configp ? *fit_uname_configp : NULL;
 	printf("## Loading %s from FIT Image at %08lx ...\n", prop_name, addr);
 
 	bootstage_mark(bootstage_id + BOOTSTAGE_SUB_FORMAT);
@@ -1658,6 +1660,8 @@ int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
 	*lenp = len;
 	if (fit_unamep)
 		*fit_unamep = (char *)fit_uname;
+	if (fit_uname_configp)
+		*fit_uname_configp = (char *)fit_uname_config;
 
 	return noffset;
 }

common/image.c

@@ -811,7 +811,7 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
 	char *end;
 #endif
 #if defined(CONFIG_FIT)
-	const char	*fit_uname_config = NULL;
+	const char	*fit_uname_config = images->fit_uname_cfg;
 	const char	*fit_uname_ramdisk = NULL;
 	ulong		default_addr;
 	int		rd_noffset;
@@ -907,7 +907,7 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
 		case IMAGE_FORMAT_FIT:
 			rd_noffset = fit_image_load(images, FIT_RAMDISK_PROP,
 					rd_addr, &fit_uname_ramdisk,
-					fit_uname_config, arch,
+					&fit_uname_config, arch,
 					IH_TYPE_RAMDISK,
 					BOOTSTAGE_ID_FIT_RD_START,
 					FIT_LOAD_REQUIRED, &rd_data, &rd_len);

include/image.h

@@ -439,8 +439,9 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
  * @param fit_unamep	On entry this is the requested image name
  *			(e.g. "kernel@1") or NULL to use the default. On exit
  *			points to the selected image name
- * @param fit_uname_config	Requested configuration name, or NULL for the
- *			default
+ * @param fit_uname_configp	On entry this is the requested configuration
+ *			name (e.g. "conf@1") or NULL to use the default. On
+ *			exit points to the selected configuration name.
  * @param arch		Expected architecture (IH_ARCH_...)
  * @param image_type	Required image type (IH_TYPE_...). If this is
  *			IH_TYPE_KERNEL then we allow IH_TYPE_KERNEL_NOLOAD
@@ -453,7 +454,7 @@ int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
  * @param lenp		Returns length of loaded image
  */
 int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
-		   const char **fit_unamep, const char *fit_uname_config,
+		   const char **fit_unamep, const char **fit_uname_configp,
 		   int arch, int image_type, int bootstage_id,
 		   enum fit_load_op load_op, ulong *datap, ulong *lenp);