2de9b4d347
This is a qspi driver for the Xilinx Zynq-7000 chip. It could be useful for anyone wanting to boot a system from flash memory instead of SD cards. Submitted by: Thomas Skibo (thomasskibo@yahoo.com) Differential Revision: https://reviews.freebsd.org/D14698
79 lines
2.0 KiB
Plaintext
79 lines
2.0 KiB
Plaintext
/*-
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* Copyright (c) 2016 The FreeBSD Foundation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/dts-v1/;
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/include/ "zynq-7000.dtsi"
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/ {
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model = "zybo";
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compatible = "digilent,zybo", "xlnx,zynq-7000";
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memory {
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// First megabyte isn't accessible by all interconnect masters.
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device_type = "memory";
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reg = <0x100000 0x1ff00000>; /* 511MB RAM at 0x100000 */
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};
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chosen {
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stdin = &uart1;
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stdout = &uart1;
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};
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};
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&slcr {
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clock-frequency = <50000000>; // 50Mhz PS_CLK
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};
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&global_timer {
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clock-frequency = <325000000>; // 325Mhz
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};
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&uart1 {
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status = "okay";
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};
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ð0 {
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status = "okay";
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};
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&qspi0 {
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status = "okay";
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flash0 {
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compatible = "st,m25p", "s25fl128";
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spi-chipselect = <0>;
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};
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};
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&sdhci0 {
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status = "okay";
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};
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&ehci0 {
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status = "okay";
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};
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