xref: /openbmc/u-boot/doc/README.zynq (revision 01a97a11)
1#
2# Xilinx ZYNQ U-Boot
3#
4# (C) Copyright 2013 Xilinx, Inc.
5#
6# SPDX-License-Identifier:	GPL-2.0+
7#
8
91. About this
10
11This document describes the information about Xilinx Zynq U-Boot -
12like supported boards, ML status and TODO list.
13
142. Zynq boards
15
16Xilinx Zynq-7000 All Programmable SoCs enable extensive system level
17differentiation, integration, and flexibility through hardware, software,
18and I/O programmability.
19
20* zc702 (single qspi, gem0, mmc) [1]
21* zc706 (dual parallel qspi, gem0, mmc) [2]
22* zed (single qspi, gem0, mmc) [3]
23* microzed (single qspi, gem0, mmc) [4]
24* zc770
25  - zc770-xm010 (single qspi, gem0, mmc)
26  - zc770-xm011 (8 or 16 bit nand)
27  - zc770-xm012 (nor)
28  - zc770-xm013 (dual parallel qspi, gem1)
29
303. Building
31
32 ex. configure and build for zc702 board
33   $ make zynq_zc702_config
34   $ make
35
364. Bootmode
37
38Zynq has a facility to read the bootmode from the slcr bootmode register
39once user is setting through jumpers on the board - see page no:1546 on [5]
40
41All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins
42on [5].
43
44board_late_init() will read the bootmode values using slcr bootmode register
45at runtime and assign the modeboot variable to specific bootmode string which
46is intern used in autoboot.
47
48SLCR bootmode register Bit[3:0] values
49#define ZYNQ_BM_NOR		0x02
50#define ZYNQ_BM_SD		0x05
51#define ZYNQ_BM_JTAG		0x0
52
53"modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot"
54bootmode strings at runtime.
55
565. Mainline status
57
58- Added basic board configurations support.
59- Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq
60- Added zynq boards named - zc70x, zed, microzed, zc770_xm010, zc770_xm012, zc770_xm013
61- Added zynq drivers:
62  serial - drivers/serial/serial_zynq.c
63  net - drivers/net/zynq_gem.c
64  mmc - drivers/mmc/zynq_sdhci.c
65  mmc - drivers/mmc/zynq_sdhci.c
66  spi-  drivers/spi/zynq_spi.c
67  i2c - drivers/i2c/zynq_i2c.c
68- Done proper cleanups on board configurations
69- Added basic FDT support for zynq boards
70- d-cache support for zynq_gem.c
71
726. TODO
73
74- Add zynq boards support - zc770_xm011
75- Add zynq qspi controller driver
76- Add zynq nand controller driver
77- Add FDT support on individual drivers
78
79[1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm
80[2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm
81[3] http://zedboard.org/product/zedboard
82[4] http://zedboard.org/product/microzed
83[5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
84
85--
86Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
87Sun Dec 15 14:52:41 IST 2013
88