aboutsummaryrefslogtreecommitdiff
path: root/board
diff options
context:
space:
mode:
authorGravatar Jan Viktorin <viktorin@rehivetech.com>2015-07-14 17:16:14 +0200
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2015-07-18 23:06:52 +0200
commitc139f0cce7d78e21b67f4649541a25ae8b5251f4 (patch)
tree72a6bb319d976952e5292a557508173e118b053a /board
parent4db53c3848d9599851b31079875f7c0d18911e76 (diff)
downloadbuildroot-c139f0cce7d78e21b67f4649541a25ae8b5251f4.tar.gz
buildroot-c139f0cce7d78e21b67f4649541a25ae8b5251f4.tar.bz2
zedboard: Update readme.txt to reflect BOOT.BIN generation
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'board')
-rw-r--r--board/avnet/zedboard/readme.txt84
1 files changed, 38 insertions, 46 deletions
diff --git a/board/avnet/zedboard/readme.txt b/board/avnet/zedboard/readme.txt
index a3f1f3e69f..e0ce0249c0 100644
--- a/board/avnet/zedboard/readme.txt
+++ b/board/avnet/zedboard/readme.txt
@@ -5,68 +5,60 @@ System-On-Chip.
Zedboard information including schematics, reference designs, and manuals are
available from http://www.zedboard.org .
-The U-Boot firmware for the Xilinx Zynq All Programmable SoC depends
-on some proprietary code. This dependency consists of a pair of
-files are available from the Xilinx SDK installation.
+Steps to create a working system for Zedboard:
-You will need these files from Xilinx SDK installation to generate
-the U-Boot firmware:
- ps7_init.c
- ps7_init.h
+1) make zedboard_defconfig
+2) make
+3) copy files BOOT.BIN, u-boot-dtb.img, rootfs.cpio.uboot,
+ uImage, zynq-zed.dtb into your SD card
+4) boot your Zedboard
-Buildroot will create the following files and place them in the
-<output>/images directory.
- zynq-zed.dtb
- rootfs.cpio.uboot
- uImage
- u-boot.img
- boot.bin
+The expected output:
+ U-Boot SPL 2015.07-rc2 (Jun 18 2015 - 16:42:58)
+ mmc boot
+ reading system.dtb
+ spl_load_image_fat_os: error reading image system.dtb, err - -1
+ reading u-boot-dtb.img
+ reading u-boot-dtb.img
-uboot.bin -- U-Boot SPL w/ Xilinx boot.bin wrapper
----------------------------------------------------
+ U-Boot 2015.07-rc2 (Jun 18 2015 - 16:42:58 +0200)
-Due to licensing issues, the files ps7_init.c/h are not able to be
-distributed with the U-Boot source code. These files are required to make a
-boot.bin file.
-
-If you already have the Xilinx tools installed, the following sequence will
-unpack, patch and build the rfs, kernel, uboot, and uboot-spl.
-
-make zedboard_defconfig
-make uboot-patch
-cp ${XILINX}/ISE_DS/EDK/sw/lib/hwplatform_templates/zed_hw_platform/ps7_init.{c,h} \
-output/build/uboot-xilinx-v2014.1/board/xilinx/zynq/
-
-After copying these files into the U-Boot source tree, you can
-continue the build with:
-
-make
-
-*Notice*
-While the build will successfully complete without the ps7_init.*
-files, the uboot.bin file generated by this configuration will not
-function properly on the Zedboard. Therefore, it is imperative that
-the ps7_init.* files be copied into the U-Boot source tree any time
-the clean, or uboot-dirclean targets are made.
+ Model: Zynq ZED Board
+ I2C: ready
+ DRAM: ECC disabled 512 MiB
+ MMC: zynq_sdhci: 0
+ Using default environment
+ ...
+When using an older U-Boot then 2015.07, a working ps7_init.c
+file is required to be installed into the U-Boot directory
+structure. From 2015.07, the major Zynq-based boards are
+supported without any manual intervention.
Resulting system
----------------
A FAT32 partition should be created at the beginning of the SD Card
and the following files should be installed:
- /boot.bin
- /devicetree.dtb
+ /BOOT.BIN
+ /zynq-zed.dtb
/uImage
- /uramdisk.image.gz
- /u-boot.img
+ /rootfs-cpio.uboot
+ /u-boot-dtb.img
All needed files can be taken from output/images/
-boot.bin, uImage and u-boot.img are direct copies of the same files
+BOOT.BIN, uImage and u-boot-dtb.img are direct copies of the same files
available on output/images/
-devicetree.dtb is just zynq-zed.dtb renamed.
+There is a patch attached that redefines the U-Boot's environment
+to work with Buildroot out-of-the-box.
+
+You can alter the booting procedure by creating a file uEnv.txt
+in the root of the SD card. It is a plain text file in format
+<key>=<value> one per line:
-uramdisk.image.gz is rootfs.cpio.uboot renamed
+kernel_image=myimage
+modeboot=myboot
+myboot=...