[PATCH] arm64: zynqmp: Add support for u-boot.itb generation with ATF.

[Michal Simek]

Follow i.MX, Sunxi, RISC-V and Rockchip to generate u-boot.itb which
includes U-Boot proper, ATF and DTBs in FIT format. ZynqMP supports FIT for
quite a long time but with using out of tree solution. The patch is filling
this gap.

Tested on zcu102, zcu104 and zcu100/Ultra96.

Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 Kconfig                                 |  3 +-
 arch/arm/mach-zynqmp/mkimage_fit_atf.sh | 99 +++++++++++++++++++++++++
 include/configs/xilinx_zynqmp.h         |  6 +-
 3 files changed, 106 insertions(+), 2 deletions(-)
 create mode 100755 arch/arm/mach-zynqmp/mkimage_fit_atf.sh

diff --git a/Kconfig b/Kconfig
index e22417ec4471..7efafffec0a4 100644
--- a/Kconfig
+++ b/Kconfig
@@ -253,7 +253,7 @@ config BUILD_TARGET
 	default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
 	default "u-boot-elf.srec" if RCAR_GEN3
 	default "u-boot.itb" if SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
-				ARCH_SUNXI || RISCV)
+				ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
 	default "u-boot.kwb" if KIRKWOOD
 	default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
 	default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
@@ -481,6 +481,7 @@ config SPL_FIT_GENERATOR
 	depends on SPL_FIT
 	default "board/sunxi/mksunxi_fit_atf.sh" if SPL_LOAD_FIT && ARCH_SUNXI
 	default "arch/arm/mach-rockchip/make_fit_atf.py" if SPL_LOAD_FIT && ARCH_ROCKCHIP
+	default "arch/arm/mach-zynqmp/mkimage_fit_atf.sh" if SPL_LOAD_FIT && ARCH_ZYNQMP
 	default "arch/riscv/lib/mkimage_fit_opensbi.sh" if SPL_LOAD_FIT && RISCV
 	help
 	  Specifies a (platform specific) script file to generate the FIT
diff --git a/arch/arm/mach-zynqmp/mkimage_fit_atf.sh b/arch/arm/mach-zynqmp/mkimage_fit_atf.sh
new file mode 100755
index 000000000000..1a4f396d1c3a
--- /dev/null
+++ b/arch/arm/mach-zynqmp/mkimage_fit_atf.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# script to generate FIT image source for Xilinx ZynqMP boards with
+# ARM Trusted Firmware and multiple device trees (given on the command line)
+#
+# usage: $0 <dt_name> [<dt_name> [<dt_name] ...]
+
+BL33="u-boot-nodtb.bin"
+[ -z "$BL31" ] && BL31="bl31.bin"
+[ -z "$ATF_LOAD_ADDR" ] && ATF_LOAD_ADDR="0xfffe0000"
+[ -z "$BL33_LOAD_ADDR" ] && BL33_LOAD_ADDR="0x8000000"
+
+if [ ! -f $BL31 ]; then
+	echo "ERROR: BL31 file $BL31 NOT found" >&2
+else
+	echo "$BL31 size: " >&2
+	ls -lct $BL31 | awk '{print $5}' >&2
+fi
+
+
+
+cat << __HEADER_EOF
+/dts-v1/;
+
+/ {
+	description = "Configuration to load ATF before U-Boot";
+
+	images {
+		uboot {
+			description = "U-Boot (64-bit)";
+			data = /incbin/("$BL33");
+			type = "firmware";
+			os = "u-boot";
+			arch = "arm64";
+			compression = "none";
+			load = <$BL33_LOAD_ADDR>;
+			hash {
+				algo = "md5";
+			};
+		};
+		atf {
+			description = "ARM Trusted Firmware";
+			data = /incbin/("$BL31");
+			type = "firmware";
+			os = "arm-trusted-firmware";
+			arch = "arm64";
+			compression = "none";
+			load = <$ATF_LOAD_ADDR>;
+			entry = <$ATF_LOAD_ADDR>;
+			hash {
+				algo = "md5";
+			};
+		};
+__HEADER_EOF
+
+cnt=1
+for dtname in $*
+do
+	cat << __FDT_IMAGE_EOF
+		fdt_$cnt {
+			description = "$(basename $dtname .dtb)";
+			data = /incbin/("$dtname");
+			type = "flat_dt";
+			arch = "arm64";
+			compression = "none";
+			hash {
+				algo = "md5";
+			};
+		};
+__FDT_IMAGE_EOF
+cnt=$((cnt+1))
+done
+
+cat << __CONF_HEADER_EOF
+	};
+	configurations {
+		default = "config_1";
+
+__CONF_HEADER_EOF
+
+cnt=1
+for dtname in $*
+do
+cat << __CONF_SECTION1_EOF
+		config_$cnt {
+			description = "$(basename $dtname .dtb)";
+			firmware = "uboot";
+			loadables = "atf";
+			fdt = "fdt_$cnt";
+		};
+__CONF_SECTION1_EOF
+cnt=$((cnt+1))
+done
+
+cat << __ITS_EOF
+	};
+};
+__ITS_EOF
diff --git a/include/configs/xilinx_zynqmp.h b/include/configs/xilinx_zynqmp.h
index ee1ceebf1291..e7eb8dbfcb45 100644
--- a/include/configs/xilinx_zynqmp.h
+++ b/include/configs/xilinx_zynqmp.h
@@ -243,7 +243,11 @@
 # define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR	0 /* unused */
 # define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS	0 /* unused */
 # define CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR	0 /* unused */
-# define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot.img"
+# if defined(CONFIG_SPL_LOAD_FIT)
+#  define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot.itb"
+# else
+#  define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot.img"
+# endif
 #endif
 
 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_DFU)
-- 
2.24.0