a3d0132770
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
/*-
|
|
* Copyright (c) 2016 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/dts-v1/;
|
|
/include/ "zynq-7000.dtsi"
|
|
|
|
/ {
|
|
model = "zybo";
|
|
compatible = "digilent,zybo", "xlnx,zynq-7000";
|
|
|
|
memory {
|
|
// First megabyte isn't accessible by all interconnect masters.
|
|
device_type = "memory";
|
|
reg = <0x100000 0x1ff00000>; /* 511MB RAM at 0x100000 */
|
|
};
|
|
|
|
chosen {
|
|
stdin = &uart1;
|
|
stdout = &uart1;
|
|
};
|
|
};
|
|
|
|
&slcr {
|
|
clock-frequency = <50000000>; // 50Mhz PS_CLK
|
|
};
|
|
|
|
&global_timer {
|
|
clock-frequency = <325000000>; // 325Mhz
|
|
};
|
|
|
|
&uart1 {
|
|
status = "okay";
|
|
};
|
|
|
|
ð0 {
|
|
status = "okay";
|
|
};
|
|
|
|
&qspi0 {
|
|
status = "okay";
|
|
|
|
flash0 {
|
|
compatible = "st,m25p", "s25fl128";
|
|
spi-chipselect = <0>;
|
|
};
|
|
};
|
|
|
|
&sdhci0 {
|
|
status = "okay";
|
|
};
|
|
|
|
&ehci0 {
|
|
status = "okay";
|
|
};
|