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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1d831cade7
All ZynqMP boards are setting up tx-buswidth to 1. Due to this the framework only issues 1-1-1 write commands to the GQSPI driver. But the GQSPI controller is capable of handling 1-4-4 write commands, so updated the tx-buswidth to 4. Using all 4 lines will increase the tx data transfer rate, as now the tx data will be transferred on four lines instead on single line. Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com> Signed-off-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/1f1b0028106d83aa06e0777e91862a07df100fa1.1684767562.git.michal.simek@amd.com
69 lines
1.4 KiB
Plaintext
69 lines
1.4 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0+
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/*
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* dts file for Xilinx ZynqMP ZC1232
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*
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* (C) Copyright 2017 - 2021, Xilinx, Inc.
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*
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* Michal Simek <michal.simek@amd.com>
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*/
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/dts-v1/;
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#include "zynqmp.dtsi"
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#include "zynqmp-clk-ccf.dtsi"
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/ {
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model = "ZynqMP ZC1232 RevA";
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compatible = "xlnx,zynqmp-zc1232-revA", "xlnx,zynqmp-zc1232", "xlnx,zynqmp";
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aliases {
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serial0 = &uart0;
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serial1 = &dcc;
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spi0 = &qspi;
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};
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chosen {
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bootargs = "earlycon";
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stdout-path = "serial0:115200n8";
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};
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memory@0 {
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device_type = "memory";
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reg = <0x0 0x0 0x0 0x80000000>;
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};
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};
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&dcc {
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status = "okay";
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};
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&qspi {
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status = "okay";
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flash@0 {
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compatible = "m25p80", "jedec,spi-nor"; /* 32MB */
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0x0>;
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spi-tx-bus-width = <4>;
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spi-rx-bus-width = <4>;
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spi-max-frequency = <108000000>; /* Based on DC1 spec */
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};
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};
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&sata {
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status = "okay";
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/* SATA OOB timing settings */
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ceva,p0-cominit-params = /bits/ 8 <0x18 0x40 0x18 0x28>;
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ceva,p0-comwake-params = /bits/ 8 <0x06 0x14 0x08 0x0E>;
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ceva,p0-burst-params = /bits/ 8 <0x13 0x08 0x4A 0x06>;
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ceva,p0-retry-params = /bits/ 16 <0x96A4 0x3FFC>;
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ceva,p1-cominit-params = /bits/ 8 <0x18 0x40 0x18 0x28>;
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ceva,p1-comwake-params = /bits/ 8 <0x06 0x14 0x08 0x0E>;
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ceva,p1-burst-params = /bits/ 8 <0x13 0x08 0x4A 0x06>;
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ceva,p1-retry-params = /bits/ 16 <0x96A4 0x3FFC>;
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};
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&uart0 {
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status = "okay";
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};
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