uboot/doc
Michal Simek bc9a78acd4 doc: Add zynq fragment to git-mailrc file
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Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-07-09 10:45:15 -04:00
..
DocBook kbuild: docbook: sync with Linux Kernel v3.15-rc1 2014-04-18 11:43:36 -04:00
SPI doc: SPI: Add qspi test details on AM43xx 2014-02-18 22:41:09 +05:30
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README.VLAN
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README.android-fastboot-protocol usb/gadget: add the fastboot gadget 2014-05-08 10:38:30 +02:00
README.arm-caches
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README.arm64
README.at91
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README.atmel_mci
README.atmel_pmecc arm:at91: enable ROM loadable atmel image 2014-05-27 00:10:49 +02:00
README.autoboot
README.b4860qds board/b4qds:Add support of 2 stage NAND boot-loader 2014-04-22 17:58:51 -07:00
README.bedbug
README.bitbangMII
README.blackfin add some more Blackfin docs 2008-02-04 19:26:54 -05:00
README.bootmenu
README.bus_vcxk
README.cfi
README.commands kbuild: rename TOPDIR to stctree 2014-03-12 17:04:55 -04:00
README.commands.itest
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README.console powerpc: remove genietv board support 2014-04-18 10:42:29 -04:00
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README.nand am335x: update README for BCH16 2014-06-06 17:46:11 -04:00
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README.unaligned-memory-access.txt arm: Switch to -mno-unaligned-access when supported by the compiler 2014-02-26 21:19:32 +01:00
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README.video powerpc: remove genietv board support 2014-04-18 10:42:29 -04:00
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README.zynq doc: Update the zynq u-boot status 2014-01-10 15:18:33 +01:00
feature-removal-schedule.txt feature-removal-schedule.txt: Drop CONFIG_SYS_ENABLE_PADS_ALL/CLOCKS_ENABLE_ALL 2014-01-24 11:01:56 -05:00
git-mailrc doc: Add zynq fragment to git-mailrc file 2014-07-09 10:45:15 -04:00
kwboot.1
mkimage.1

README.zynq

#
# Xilinx ZYNQ U-Boot
#
# (C) Copyright 2013 Xilinx, Inc.
#
# SPDX-License-Identifier:	GPL-2.0+
#

1. About this

This document describes the information about Xilinx Zynq U-Boot -
like supported boards, ML status and TODO list.

2. Zynq boards

Xilinx Zynq-7000 All Programmable SoCs enable extensive system level
differentiation, integration, and flexibility through hardware, software,
and I/O programmability.

* zc70x
  - 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)

3. Building

 # Configure for zc70x board
   $ make zynq_zc70x_config
     Configuring for zynq_zc70x board...

 # Building default dts for zc702 board
   $ make

 # Building specified dts for zc706 board
   $ make DEVICE_TREE=zynq-zc706

4. 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
#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.

5. Mainline status

- Added basic board configurations support.
- Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq
- Added zynq boards named - zc70x, zed, microzed, zc770_xm010, zc770_xm012, zc770_xm013
- Added zynq drivers:
  serial - drivers/serial/serial_zynq.c
  net - drivers/net/zynq_gem.c
  mmc - drivers/mmc/zynq_sdhci.c
  mmc - drivers/mmc/zynq_sdhci.c
  spi-  drivers/spi/zynq_spi.c
  i2c - drivers/i2c/zynq_i2c.c
- Done proper cleanups on board configurations
- Added basic FDT support for zynq boards
- d-cache support for zynq_gem.c

6. TODO

- Add zynq boards support - zc770_xm011
- Add zynq qspi controller driver
- Add zynq nand controller driver
- Add FDT support on individual drivers

[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