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. Bootmode 32 33Zynq has a facility to read the bootmode from the slcr bootmode register 34once user is setting through jumpers on the board - see page no:1546 on [5] 35 36All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins 37on [5]. 38 39board_late_init() will read the bootmode values using slcr bootmode register 40at runtime and assign the modeboot variable to specific bootmode string which 41is intern used in autoboot. 42 43SLCR bootmode register Bit[3:0] values 44#define ZYNQ_BM_NOR 0x02 45#define ZYNQ_BM_SD 0x05 46#define ZYNQ_BM_JTAG 0x0 47 48"modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot" 49bootmode strings at runtime. 50 514. Mainline status 52 53- Added basic board configurations support. 54- Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq 55- Added zynq boards named - zynq, zynq_dcc 56- Added zynq drivers: 57 serial - drivers/serial/serial_zynq.c 58 net - drivers/net/zynq_gem.c 59 mmc - drivers/mmc/zynq_sdhci.c 60 mmc - drivers/mmc/zynq_sdhci.c 61 spi- drivers/spi/zynq_spi.c 62 i2c - drivers/i2c/zynq_i2c.c 63 645. TODO 65 66- Add zynq boards support - zc70x, zed, microzed, zc770 67- Add zynq qspi controller driver 68- Add zynq nand controller driver 69- d-cache support for zynq_gem.c 70- FDT support for zynq boards 71- Need proper cleanups on board configurations 72 73[1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm 74[2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm 75[3] http://zedboard.org/product/zedboard 76[4] http://zedboard.org/product/microzed 77[5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf 78 79-- 80Jagannadha Sutradharudu Teki <jaganna@xilinx.com> 81Sun Dec 15 14:52:41 IST 2013 82