Merge tag 'fsl-qoriq-for-v2019.01-rc2' of git://git.denx.de/u-boot-fsl-qoriq

[oweals/u-boot.git] / arch / arm / cpu / armv8 / fsl-layerscape / doc / README.falcon

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon
index a00b5bc9c3587fb70e864d393ce0b6ca187cd6fe..b3c6693a42c273429063c10c6d12e33a6cbe6aca 100644 (file)
--- a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon
+++ b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon
@@ -110,7 +110,7 @@ Example:
                        type = "ramdisk";
                        arch = "arm64";
                        os = "linux";
-                       compression = "gzip";
+                       compression = "none";
                        load = <0xa0000000>;
                };
        };
@@ -129,6 +129,16 @@ Example:
 
 The "loadables" is not optional. It tells SPL which images to load into memory.
 
+Falcon mode with QSPI boot
+--------------------------
+To use falcon mode with QSPI boot, SPL needs to be enabled. Similar to SD or
+NAND boot, a RAM version full feature U-Boot is needed. Unlike SD or NAND boot,
+SPL with QSPI doesn't need to combine SPL image with RAM version image. Two
+separated images are used, u-boot-spl.pbl and u-boot.img. The former is SPL
+image with RCW and PBI commands to load the SPL payload into On-Chip RAM. The
+latter is RAM version U-Boot in FIT format (or legacy format if FIT is not
+used).
+
 Other things to consider
 -----------------------
 Falcon boot skips a lot of initialization in U-Boot. If Linux expects the