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https://github.com/brain-hackers/u-boot-brain
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39c5cf0e70
XDP - Xilinx Drone Platform is a board for drones or other UAV. Pinmux the SD card by default, and if the SD card detect line is high (inactive) then pinmux the SD1 interface to EMIO instead. SD is placed on extension card and shares connection with on board wife. That means that when SD card is present in the board wifi can't be used. There seems to be an issue with DDR access from PL at 2400MT/s, after updating the PMU and ATF firmware this is causing extremely slow DDR access. Reducing the DDR speed from 2400 to 2133 appears to solve that issue, even though the hardware has proven to be 2400 capable. Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
118 lines
1.9 KiB
Plaintext
118 lines
1.9 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0+
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/*
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* dts file for Topic XDP (Xilinx Drone Platform)
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*
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* (C) Copyright 2016, Topic Embedded Products BV
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* Mike Looijmans <mike.looijmans@topic.nl>
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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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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/phy/phy.h>
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/ {
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model = "Topic Miamimp ZynqMP XDP v1r1";
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compatible = "topic,miamimp-xdp-v1r1", "topic,miamimp-xdp",
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"topic,miamimp", "xlnx,zynqmp";
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aliases {
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gpio0 = &gpio;
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i2c0 = &i2c0;
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i2c1 = &i2c1;
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mmc0 = &sdhci0;
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mmc1 = &sdhci1;
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rtc0 = &rtc;
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serial0 = &uart1;
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serial1 = &uart0;
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serial2 = &dcc;
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spi0 = &qspi;
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usb0 = &usb0;
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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>, <0x8 0x00000000 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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&gpio {
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status = "okay";
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};
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&gpu {
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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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is-dual = <1>;
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flash@0 {
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compatible = "st,m25p80", "n25q256a";
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m25p,fast-read;
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reg = <0x0>;
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spi-tx-bus-width = <1>;
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spi-rx-bus-width = <4>;
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spi-max-frequency = <166000000>;
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#address-cells = <1>;
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#size-cells = <1>;
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is-dual = <1>;
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partition@0 {
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label = "qspi-boot-bin";
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reg = <0x00000 0x60000>;
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};
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partition@60000 {
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label = "qspi-u-boot-itb";
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reg = <0x60000 0x100000>;
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};
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partition@160000 {
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label = "qspi-u-boot-env";
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reg = <0x160000 0x20000>;
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};
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partition@200000 {
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label = "qspi-rootfs";
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reg = <0x200000 0x1e00000>;
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};
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};
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};
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&rtc {
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status = "okay";
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};
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/* eMMC device */
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&sdhci0 {
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status = "okay";
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non-removable;
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disable-wp; /* We don't have a write-protect detection */
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bus-width = <8>;
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xlnx,mio_bank = <0>;
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};
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/* SD1 with level shifter */
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&sdhci1 {
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status = "okay";
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xlnx,mio_bank = <1>;
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disable-wp; /* We don't have a write-protect detection */
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bus-width = <4>;
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};
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&uart0 {
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status = "okay";
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};
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&uart1 {
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status = "okay";
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};
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