[Buildroot] [PATCH v5 2/3] configs/zynqmp_zcu106_defconfig: add Xilinx ZCU106 board (ZynqMP SoC)

[Luca Ceresoli <luca@lucaceresoli.net>]

This adds support the Xilinx ZCU106 development board.

[Tested on the ES2 (Engineering Sample 2) version of the board]
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Joel Carlson <joelsoncarl@gmail.com>

---
Changes v4 -> v5:
 - bump pmufw binary from 2017.1 to 2017.4

Changes v3 -> v4:
 - specify an explicit ATF version in the defconfig and use 1.5
   (Thomas)
 - update readme.txt

Changes v2 -> v3:
 - adapt to changed ATF option name
   (BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31_UBOOT)
 - adapt to the new pmufw implementation in uboot (no
   zynqmp-pmufw-binaries package, just a downloadable file)
 - patches now upstream, update patch files

Changes v1 -> v2:
 - don't provide psu_init files: the xilinx master branch has a
   defconfig that works (with 2 patches)
---
 DEVELOPERS                                    |   2 +
 board/zynqmp/genimage.cfg                     |  28 +++++
 ...64-zynqmp-zcu106-fix-SPL-MMC-booting.patch |  52 ++++++++
 ...2-arm64-zynqmp-Enable-booting-to-ATF.patch | 114 ++++++++++++++++++
 board/zynqmp/post-image.sh                    |  13 ++
 board/zynqmp/readme.txt                       |  51 ++++++++
 configs/zynqmp_zcu106_defconfig               |  34 ++++++
 7 files changed, 294 insertions(+)
 create mode 100644 board/zynqmp/genimage.cfg
 create mode 100644 board/zynqmp/patches/uboot/0001-arm64-zynqmp-zcu106-fix-SPL-MMC-booting.patch
 create mode 100644 board/zynqmp/patches/uboot/0002-arm64-zynqmp-Enable-booting-to-ATF.patch
 create mode 100755 board/zynqmp/post-image.sh
 create mode 100644 board/zynqmp/readme.txt
 create mode 100644 configs/zynqmp_zcu106_defconfig

diff --git a/DEVELOPERS b/DEVELOPERS
index 3605032da3ec..014b245b3dbe 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -1162,8 +1162,10 @@ F:	package/ti-sgx-um/
 N:	Luca Ceresoli <luca@lucaceresoli.net>
 F:	board/olimex/a20_olinuxino/
 F:	board/zynq/
+F:	board/zynqmp/
 F:	configs/olimex_a20_olinuxino_*
 F:	configs/zynq_zed_defconfig
+F:	configs/zynqmp_zcu106_defconfig
 F:	package/agentpp/
 F:	package/exim/
 F:	package/libpjsip/
diff --git a/board/zynqmp/genimage.cfg b/board/zynqmp/genimage.cfg
new file mode 100644
index 000000000000..30be086d7d42
--- /dev/null
+++ b/board/zynqmp/genimage.cfg
@@ -0,0 +1,28 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"boot.bin",
+			"u-boot.bin",
+			"atf-uboot.ub",
+			"system.dtb",
+			"Image"
+		}
+	}
+	size = 32M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition boot {
+		partition-type = 0xC
+		bootable = "true"
+		image = "boot.vfat"
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}
diff --git a/board/zynqmp/patches/uboot/0001-arm64-zynqmp-zcu106-fix-SPL-MMC-booting.patch b/board/zynqmp/patches/uboot/0001-arm64-zynqmp-zcu106-fix-SPL-MMC-booting.patch
new file mode 100644
index 000000000000..3d834a4d2ddb
--- /dev/null
+++ b/board/zynqmp/patches/uboot/0001-arm64-zynqmp-zcu106-fix-SPL-MMC-booting.patch
@@ -0,0 +1,52 @@
+From e5d72ed8339eb05285448aad3c89d21e4d18fd29 Mon Sep 17 00:00:00 2001
+From: Luca Ceresoli <luca@lucaceresoli.net>
+Date: Mon, 26 Feb 2018 09:40:34 +0100
+Subject: [PATCH 1/2] arm64: zynqmp: zcu106: fix SPL MMC booting
+
+The U-Boot SPL generated with the current zcu106 defconfig cannot boot
+from MMC:
+
+  [...]
+  U-Boot SPL 2018.01 (Feb 21 2018 - 17:47:14)
+  EL Level:  EL3
+  Trying to boot from MMC1
+  sdhci_transfer_data: Error detected in status(0x408020)!
+  spl_load_image_fat_os: error reading image u-boot.bin, err - -2
+  spl_load_image_fat: error reading image u-boot.img, err - -6
+  SPL: failed to boot from all boot devices
+  ### ERROR ### Please RESET the board ###
+
+Fix by lowering the rpll value. The new value for the RPLL_CTRL
+register comes from the current psu_init_gpl.c from the HDF file at
+https://github.com/xilinx/hdf-examples/tree/01ad8ea5fd1989abf4ea5a072d019a16cb2bc546/zcu106-zynqmp
+(generated by Vivado v2017.4).
+
+RPLL and sdio1_ref clocks before and after this change:
+
+ - Old values: RPLL 1.36 GHz, sdio1_ref 272 MHz
+ - New values: RPLL 1.16 GHz, sdio1_ref 233 MHz
+
+Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
+Cc: Michal Simek <michal.simek@xilinx.com>
+Upstream-status: accepted upstream in a different form
+---
+
+ board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c b/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
+index 4d18abe000ca..e6fa477e53e7 100644
+--- a/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
++++ b/board/xilinx/zynqmp/zynqmp-zcu106-revA/psu_init_gpl.c
+@@ -10,7 +10,7 @@
+ static unsigned long psu_pll_init_data(void)
+ {
+ 	psu_mask_write(0xFF5E0034, 0xFE7FEDEFU, 0x7E4E2C62U);
+-	psu_mask_write(0xFF5E0030, 0x00717F00U, 0x00013C00U);
++	psu_mask_write(0xFF5E0030, 0x00717F00U, 0x00014600U);
+ 	psu_mask_write(0xFF5E0030, 0x00000008U, 0x00000008U);
+ 	psu_mask_write(0xFF5E0030, 0x00000001U, 0x00000001U);
+ 	psu_mask_write(0xFF5E0030, 0x00000001U, 0x00000000U);
+-- 
+2.7.4
+
diff --git a/board/zynqmp/patches/uboot/0002-arm64-zynqmp-Enable-booting-to-ATF.patch b/board/zynqmp/patches/uboot/0002-arm64-zynqmp-Enable-booting-to-ATF.patch
new file mode 100644
index 000000000000..487fff681210
--- /dev/null
+++ b/board/zynqmp/patches/uboot/0002-arm64-zynqmp-Enable-booting-to-ATF.patch
@@ -0,0 +1,114 @@
+From 5e3cac50cc981e01d9072241035a8d4162560c71 Mon Sep 17 00:00:00 2001
+From: Luca Ceresoli <luca@lucaceresoli.net>
+Date: Mon, 12 Mar 2018 17:18:38 +0100
+Subject: [PATCH] arm64: zynqmp: Enable booting to ATF
+
+U-Boot is now able to boot to ARM Trusted Firmware (ATF). The boot
+flow is SPL(EL3) loads ATF and full u-boot and jump to ATF(EL3) which
+pass control to full u-boot(EL2). This has been tested on zcu106, so
+enable it in this defconfig.
+
+To generate an image that triggers this booting flow, you need to pass
+'-O arm-trusted-firmware' to mkimage.
+
+Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
+Signed-off-by: Michal Simek <michal.simek@xilinx.com>
+Backported from upstream: http://git.denx.de/?p=u-boot.git;a=commit;h=5e3cac50cc981e01d9072241035a8d4162560c71
+---
+
+ configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig | 1 +
+ configs/xilinx_zynqmp_zc1751_xm016_dc2_defconfig | 1 +
+ configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig | 1 +
+ configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig | 1 +
+ configs/xilinx_zynqmp_zcu102_rev1_0_defconfig    | 1 +
+ configs/xilinx_zynqmp_zcu102_revA_defconfig      | 1 +
+ configs/xilinx_zynqmp_zcu102_revB_defconfig      | 1 +
+ 7 files changed, 7 insertions(+)
+
+diff --git a/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig b/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
+index c5bfa2b12638..488c72258b0e 100644
+--- a/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
++++ b/configs/xilinx_zynqmp_zc1751_xm015_dc1_defconfig
+@@ -19,6 +19,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_FASTBOOT=y
+ CONFIG_FASTBOOT_FLASH=y
+diff --git a/configs/xilinx_zynqmp_zc1751_xm016_dc2_defconfig b/configs/xilinx_zynqmp_zc1751_xm016_dc2_defconfig
+index f86dce403a42..5d501eec0edd 100644
+--- a/configs/xilinx_zynqmp_zc1751_xm016_dc2_defconfig
++++ b/configs/xilinx_zynqmp_zc1751_xm016_dc2_defconfig
+@@ -20,6 +20,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_FASTBOOT=y
+ CONFIG_FASTBOOT_FLASH=y
+diff --git a/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig b/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig
+index 6e947cf56827..6f7eaebd7676 100644
+--- a/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig
++++ b/configs/xilinx_zynqmp_zc1751_xm018_dc4_defconfig
+@@ -16,6 +16,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_CMD_MEMTEST=y
+ CONFIG_SYS_ALT_MEMTEST=y
+diff --git a/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig b/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig
+index 1c934858c61c..7a3806cba4b5 100644
+--- a/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig
++++ b/configs/xilinx_zynqmp_zc1751_xm019_dc5_defconfig
+@@ -17,6 +17,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_CMD_MEMTEST=y
+ CONFIG_SYS_ALT_MEMTEST=y
+diff --git a/configs/xilinx_zynqmp_zcu102_rev1_0_defconfig b/configs/xilinx_zynqmp_zcu102_rev1_0_defconfig
+index e13c7c56f310..e4408f182ca0 100644
+--- a/configs/xilinx_zynqmp_zcu102_rev1_0_defconfig
++++ b/configs/xilinx_zynqmp_zcu102_rev1_0_defconfig
+@@ -19,6 +19,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_FASTBOOT=y
+ CONFIG_FASTBOOT_FLASH=y
+diff --git a/configs/xilinx_zynqmp_zcu102_revA_defconfig b/configs/xilinx_zynqmp_zcu102_revA_defconfig
+index 5b2cd495ee85..b52f6789fd4b 100644
+--- a/configs/xilinx_zynqmp_zcu102_revA_defconfig
++++ b/configs/xilinx_zynqmp_zcu102_revA_defconfig
+@@ -19,6 +19,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_FASTBOOT=y
+ CONFIG_FASTBOOT_FLASH=y
+diff --git a/configs/xilinx_zynqmp_zcu102_revB_defconfig b/configs/xilinx_zynqmp_zcu102_revB_defconfig
+index e6530fbfe7ff..80592554f682 100644
+--- a/configs/xilinx_zynqmp_zcu102_revB_defconfig
++++ b/configs/xilinx_zynqmp_zcu102_revB_defconfig
+@@ -19,6 +19,7 @@ CONFIG_BOARD_EARLY_INIT_R=y
+ CONFIG_SPL_OS_BOOT=y
+ CONFIG_SPL_RAM_SUPPORT=y
+ CONFIG_SPL_RAM_DEVICE=y
++CONFIG_SPL_ATF=y
+ CONFIG_SYS_PROMPT="ZynqMP> "
+ CONFIG_FASTBOOT=y
+ CONFIG_FASTBOOT_FLASH=y
+-- 
+2.7.4
+
diff --git a/board/zynqmp/post-image.sh b/board/zynqmp/post-image.sh
new file mode 100755
index 000000000000..2e7bcbaab60f
--- /dev/null
+++ b/board/zynqmp/post-image.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# By default U-Boot loads DTB from a file named "system.dtb", so
+# let's use a symlink with that name that points to the *first*
+# devicetree listed in the config.
+
+FIRST_DT=$(sed -nr \
+               -e 's|^BR2_LINUX_KERNEL_INTREE_DTS_NAME="xilinx/([-_/[:alnum:]]*).*"$|\1|p' \
+               ${BR2_CONFIG})
+
+[ -z "${FIRST_DT}" ] || ln -fs ${FIRST_DT}.dtb ${BINARIES_DIR}/system.dtb
+
+support/scripts/genimage.sh -c board/zynqmp/genimage.cfg
diff --git a/board/zynqmp/readme.txt b/board/zynqmp/readme.txt
new file mode 100644
index 000000000000..da37f4ccc9c5
--- /dev/null
+++ b/board/zynqmp/readme.txt
@@ -0,0 +1,51 @@
+********************************
+Xilinx ZCU106 board - ZynqMP SoC
+********************************
+
+This document describes the Buildroot support for the ZCU106 board by
+Xilinx, based on the Zynq UltraScale+ MPSoC (aka ZynqMP). It has been
+tested with the EK-U1-ZCU106-ES2 pre-production board.
+
+How to build it
+===============
+
+Configure Buildroot:
+
+    $ make zynqmp_zcu106_defconfig
+
+Compile everything and build the rootfs image:
+
+    $ make
+
+Result of the build
+-------------------
+
+After building, you should get a tree like this:
+
+    output/images/
+    +-- atf-uboot.ub
+    +-- bl31.bin
+    +-- boot.bin
+    +-- boot.vfat
+    +-- Image
+    +-- rootfs.ext2
+    +-- rootfs.ext4 -> rootfs.ext2
+    +-- sdcard.img
+    +-- system.dtb -> zynqmp-zcu106-revA.dtb
+    +-- u-boot.bin
+    `-- zynqmp-zcu106-revA.dtb
+
+How to write the SD card
+========================
+
+WARNING! This will destroy all the card content. Use with care!
+
+The sdcard.img file is a complete bootable image ready to be written
+on the boot medium. To install it, simply copy the image to an SD
+card:
+
+    # dd if=output/images/sdcard.img of=/dev/sdX
+
+Where 'sdX' is the device node of the SD.
+
+Eject the SD card, insert it in the board, and power it up.
diff --git a/configs/zynqmp_zcu106_defconfig b/configs/zynqmp_zcu106_defconfig
new file mode 100644
index 000000000000..bee7c1daf704
--- /dev/null
+++ b/configs/zynqmp_zcu106_defconfig
@@ -0,0 +1,34 @@
+BR2_aarch64=y
+BR2_GLOBAL_PATCH_DIR="board/zynqmp/patches/"
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_9=y
+BR2_ROOTFS_POST_IMAGE_SCRIPT="board/zynqmp/post-image.sh"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_GIT=y
+BR2_LINUX_KERNEL_CUSTOM_REPO_URL="git://github.com/Xilinx/linux-xlnx.git"
+BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="xilinx-v2017.4"
+BR2_LINUX_KERNEL_DEFCONFIG="xilinx_zynqmp"
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="xilinx/zynqmp-zcu106-revA"
+BR2_TARGET_ROOTFS_EXT2=y
+BR2_TARGET_ROOTFS_EXT2_4=y
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_GIT=y
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_URL="https://github.com/ARM-software/arm-trusted-firmware.git"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_VERSION="v1.5"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="zynqmp"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31_UBOOT=y
+BR2_TARGET_UBOOT=y
+BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+BR2_TARGET_UBOOT_CUSTOM_GIT=y
+BR2_TARGET_UBOOT_CUSTOM_REPO_URL="git://github.com/xilinx/u-boot-xlnx.git"
+BR2_TARGET_UBOOT_CUSTOM_REPO_VERSION="228801a215909365ae1dcdd799034195ad7264f7"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="xilinx_zynqmp_zcu106_revA"
+BR2_TARGET_UBOOT_NEEDS_DTC=y
+BR2_TARGET_UBOOT_SPL=y
+BR2_TARGET_UBOOT_SPL_NAME="spl/boot.bin"
+BR2_TARGET_UBOOT_ZYNQMP=y
+BR2_TARGET_UBOOT_ZYNQMP_PMUFW="https://github.com/lucaceresoli/zynqmp-pmufw-binaries/raw/53fdb7b6c92860ceb0ec5fd14deee302f4a84269/bin/pmufw-zcu106-default-v2017.4.bin"
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
-- 
2.17.1