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 nand - drivers/mtd/nand/raw/zynq_nand.c 69- Done proper cleanups on board configurations 70- Added basic FDT support for zynq boards 71- d-cache support for zynq_gem.c 72 736. TODO 74 75- Add zynq boards support - zc770_xm011 76- Add zynq qspi controller driver 77- Add zynq nand controller driver 78- Add FDT support on individual drivers 79 80[1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm 81[2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm 82[3] http://zedboard.org/product/zedboard 83[4] http://zedboard.org/product/microzed 84[5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf 85 86-- 87Jagannadha Sutradharudu Teki <jaganna@xilinx.com> 88Sun Dec 15 14:52:41 IST 2013 89