Merge branch 'master' of git://git.denx.de/u-boot-i2c

- DM_I2C_COMPAT removal for all ti platforms from Jean-Jacques Hiblot
- Fix in i2c command help output from Chirstoph Muellner.

1 files changed, 42 insertions, 1 deletions

diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index cbdc0778258..7bbc6d445e4 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1275,14 +1275,55 @@ int fdtdec_setup(void)
 	 * If so, pick the most relevant
 	 */
 	fdt_blob = locate_dtb_in_fit(gd->fdt_blob);
-	if (fdt_blob)
+	if (fdt_blob) {
+		gd->multi_dtb_fit = gd->fdt_blob;
 		gd->fdt_blob = fdt_blob;
+	}
+
 # endif
 #endif
 
 	return fdtdec_prepare_fdt();
 }
 
+#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
+int fdtdec_resetup(int *rescan)
+{
+	void *fdt_blob;
+
+	/*
+	 * If the current DTB is part of a compressed FIT image,
+	 * try to locate the best match from the uncompressed
+	 * FIT image stillpresent there. Save the time and space
+	 * required to uncompress it again.
+	 */
+	if (gd->multi_dtb_fit) {
+		fdt_blob = locate_dtb_in_fit(gd->multi_dtb_fit);
+
+		if (fdt_blob == gd->fdt_blob) {
+			/*
+			 * The best match did not change. no need to tear down
+			 * the DM and rescan the fdt.
+			 */
+			*rescan = 0;
+			return 0;
+		}
+
+		*rescan = 1;
+		gd->fdt_blob = fdt_blob;
+		return fdtdec_prepare_fdt();
+	}
+
+	/*
+	 * If multi_dtb_fit is NULL, it means that blob appended to u-boot is
+	 * not a FIT image containings DTB, but a single DTB. There is no need
+	 * to teard down DM and rescan the DT in this case.
+	 */
+	*rescan = 0;
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_NR_DRAM_BANKS
 int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
 			   phys_addr_t *basep, phys_size_t *sizep, bd_t *bd)