diff options
Diffstat (limited to 'doc/board/xilinx/zynq.rst')
| -rw-r--r-- | doc/board/xilinx/zynq.rst | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/doc/board/xilinx/zynq.rst b/doc/board/xilinx/zynq.rst new file mode 100644 index 0000000000..3f0513ed36 --- /dev/null +++ b/doc/board/xilinx/zynq.rst @@ -0,0 +1,95 @@ +.. SPDX-License-Identifier: GPL-2.0+ +.. (C) Copyright 2013 Xilinx, Inc. + +ZYNQ +==== + +About this +---------- + +This document describes the information about Xilinx Zynq U-Boot - +like supported boards, ML status and TODO list. + +Zynq boards +----------- + +Xilinx Zynq-7000 All Programmable SoCs enable extensive system level +differentiation, integration, and flexibility through hardware, software, +and I/O programmability. + +* 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) + +Building +-------- + +configure and build for zc702 board:: + + $ make zynq_zc702_config + $ make + +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 + +.. code-block:: c + + #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. + +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/xm011/xm012/xm013 +- Added zynq drivers: + + :serial: drivers/serial/serial_zynq.c + :net: drivers/net/zynq_gem.c + :mmc: drivers/mmc/zynq_sdhci.c + :spi: drivers/spi/zynq_spi.c + :qspi: drivers/spi/zynq_qspi.c + :i2c: drivers/i2c/zynq_i2c.c + :nand: drivers/mtd/nand/raw/zynq_nand.c + +- Done proper cleanups on board configurations +- Added basic FDT support for zynq boards +- d-cache support for zynq_gem.c + +TODO +---- + +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 |