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* zc70x 21 - zc702 (single qspi, gem0, mmc) [1] 22 - zc706 (dual parallel qspi, gem0, mmc) [2] 23* zed (single qspi, gem0, mmc) [3] 24* microzed (single qspi, gem0, mmc) [4] 25* zc770 26 - zc770-xm010 (single qspi, gem0, mmc) 27 - zc770-xm011 (8 or 16 bit nand) 28 - zc770-xm012 (nor) 29 - zc770-xm013 (dual parallel qspi, gem1) 30 313. Building 32 33 # Configure for zc70x board 34 $ make zynq_zc70x_config 35 Configuring for zynq_zc70x board... 36 37 # Building default dts for zc702 board 38 $ make 39 40 # Building specified dts for zc706 board 41 $ make DEVICE_TREE=zynq-zc706 42 434. Bootmode 44 45Zynq has a facility to read the bootmode from the slcr bootmode register 46once user is setting through jumpers on the board - see page no:1546 on [5] 47 48All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins 49on [5]. 50 51board_late_init() will read the bootmode values using slcr bootmode register 52at runtime and assign the modeboot variable to specific bootmode string which 53is intern used in autoboot. 54 55SLCR bootmode register Bit[3:0] values 56#define ZYNQ_BM_NOR 0x02 57#define ZYNQ_BM_SD 0x05 58#define ZYNQ_BM_JTAG 0x0 59 60"modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot" 61bootmode strings at runtime. 62 635. Mainline status 64 65- Added basic board configurations support. 66- Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq 67- Added zynq boards named - zc70x, zed, microzed, zc770_xm010, zc770_xm012, zc770_xm013 68- Added zynq drivers: 69 serial - drivers/serial/serial_zynq.c 70 net - drivers/net/zynq_gem.c 71 mmc - drivers/mmc/zynq_sdhci.c 72 mmc - drivers/mmc/zynq_sdhci.c 73 spi- drivers/spi/zynq_spi.c 74 i2c - drivers/i2c/zynq_i2c.c 75- Done proper cleanups on board configurations 76- Added basic FDT support for zynq boards 77- d-cache support for zynq_gem.c 78 796. TODO 80 81- Add zynq boards support - zc770_xm011 82- Add zynq qspi controller driver 83- Add zynq nand controller driver 84- Add FDT support on individual drivers 85 86[1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm 87[2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm 88[3] http://zedboard.org/product/zedboard 89[4] http://zedboard.org/product/microzed 90[5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf 91 92-- 93Jagannadha Sutradharudu Teki <jaganna@xilinx.com> 94Sun Dec 15 14:52:41 IST 2013 95