mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
2bf4f763e6
- Correct location of BSP code - Remove TODO which is done already Signed-off-by: Michal Simek <michal.simek@xilinx.com>
110 lines
2.9 KiB
ReStructuredText
110 lines
2.9 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
|
|
.. (C) Copyright 2013 Xilinx, Inc.
|
|
|
|
ZYNQ
|
|
====
|
|
|
|
About this
|
|
----------
|
|
|
|
This document describes the information about Xilinx Zynq U-Boot -
|
|
like supported boards, ML status and TODO list.
|
|
|
|
Zynq boards
|
|
-----------
|
|
|
|
Xilinx Zynq-7000 All Programmable SoCs enable extensive system level
|
|
differentiation, integration, and flexibility through hardware, software,
|
|
and I/O programmability.
|
|
|
|
* zc702 (single qspi, gem0, mmc) [1]
|
|
* zc706 (dual parallel qspi, gem0, mmc) [2]
|
|
* zed (single qspi, gem0, mmc) [3]
|
|
* microzed (single qspi, gem0, mmc) [4]
|
|
* zc770
|
|
- zc770-xm010 (single qspi, gem0, mmc)
|
|
- zc770-xm011 (8 or 16 bit nand)
|
|
- zc770-xm012 (nor)
|
|
- zc770-xm013 (dual parallel qspi, gem1)
|
|
|
|
Building
|
|
--------
|
|
|
|
configure and build for zc702 board::
|
|
|
|
$ export DEVICE_TREE=zynq-zc702
|
|
$ make xilinx_zynq_virt_defconfig
|
|
$ make
|
|
|
|
Bootmode
|
|
--------
|
|
|
|
Zynq has a facility to read the bootmode from the slcr bootmode register
|
|
once user is setting through jumpers on the board - see page no:1546 on [5]
|
|
|
|
All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins
|
|
on [5].
|
|
|
|
board_late_init() will read the bootmode values using slcr bootmode register
|
|
at runtime and assign the modeboot variable to specific bootmode string which
|
|
is intern used in autoboot.
|
|
|
|
SLCR bootmode register Bit[3:0] values
|
|
|
|
.. code-block:: c
|
|
|
|
#define ZYNQ_BM_NOR 0x02
|
|
#define ZYNQ_BM_SD 0x05
|
|
#define ZYNQ_BM_JTAG 0x0
|
|
|
|
"modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot"
|
|
bootmode strings at runtime.
|
|
|
|
Flashing
|
|
--------
|
|
|
|
SD Card
|
|
^^^^^^^
|
|
|
|
To write an image that boots from a SD card first create a FAT32 partition
|
|
and a FAT32 filesystem on the SD card::
|
|
|
|
sudo fdisk /dev/sdx
|
|
sudo mkfs.vfat -F 32 /dev/sdx1
|
|
|
|
Mount the SD card and copy the SPL and U-Boot to the root directory of the
|
|
SD card::
|
|
|
|
sudo mount -t vfat /dev/sdx1 /mnt
|
|
sudo cp spl/boot.bin /mnt
|
|
sudo cp u-boot.img /mnt
|
|
|
|
Mainline status
|
|
---------------
|
|
|
|
- Added basic board configurations support.
|
|
- Added zynq u-boot bsp code - arch/arm/mach-zynq
|
|
- Added zynq boards named - zc70x, zed, microzed, zc770_xm010/xm011/xm012/xm013
|
|
- Added zynq drivers:
|
|
|
|
:serial: drivers/serial/serial_zynq.c
|
|
:net: drivers/net/zynq_gem.c
|
|
:mmc: drivers/mmc/zynq_sdhci.c
|
|
:spi: drivers/spi/zynq_spi.c
|
|
:qspi: drivers/spi/zynq_qspi.c
|
|
:i2c: drivers/i2c/zynq_i2c.c
|
|
:nand: drivers/mtd/nand/raw/zynq_nand.c
|
|
|
|
- Done proper cleanups on board configurations
|
|
- Added basic FDT support for zynq boards
|
|
- d-cache support for zynq_gem.c
|
|
|
|
* [1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm
|
|
* [2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm
|
|
* [3] http://zedboard.org/product/zedboard
|
|
* [4] http://zedboard.org/product/microzed
|
|
* [5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
|
|
|
|
|
|
.. Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
|
|
.. Sun Dec 15 14:52:41 IST 2013
|