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linux/arch/riscv/boot/dts/microchip/mpfs-polarberry.dts
Conor Dooley 2b55915d27 riscv: dts: microchip: mpfs: remove bogus card-detect-delay
Recent versions of dt-schema warn about a previously undetected
undocumented property:
arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dtb: mmc@20008000: Unevaluated properties are not allowed ('card-detect-delay' was unexpected)
        From schema: Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml

There are no GPIOs connected to MSSIO6B4 pin K3 so adding the common
cd-debounce-delay-ms property makes no sense. The Cadence IP has a
register that sets the card detect delay as "DP * tclk". On MPFS, this
clock frequency is not configurable (it must be 200 MHz) & the FPGA
comes out of reset with this register already set.

Fixes: bc47b2217f ("riscv: dts: microchip: add the sundance polarberry")
Fixes: 0fa6107eca ("RISC-V: Initial DTS for Microchip ICICLE board")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2022-08-23 22:15:54 +01:00

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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Copyright (c) 2020-2022 Microchip Technology Inc */
/dts-v1/;
#include "mpfs.dtsi"
#include "mpfs-polarberry-fabric.dtsi"
/* Clock frequency (in Hz) of the rtcclk */
#define MTIMER_FREQ 1000000
/ {
model = "Sundance PolarBerry";
compatible = "sundance,polarberry", "microchip,mpfs";
aliases {
ethernet0 = &mac1;
serial0 = &mmuart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
cpus {
timebase-frequency = <MTIMER_FREQ>;
};
ddrc_cache_lo: memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x2e000000>;
};
ddrc_cache_hi: memory@1000000000 {
device_type = "memory";
reg = <0x10 0x00000000 0x0 0xC0000000>;
};
};
/*
* phy0 is connected to mac0, but the port itself is on the (optional) carrier
* board.
*/
&mac0 {
phy-mode = "sgmii";
phy-handle = <&phy0>;
status = "disabled";
};
&mac1 {
phy-mode = "sgmii";
phy-handle = <&phy1>;
status = "okay";
phy1: ethernet-phy@5 {
reg = <5>;
};
phy0: ethernet-phy@4 {
reg = <4>;
};
};
&mbox {
status = "okay";
};
&mmc {
bus-width = <4>;
disable-wp;
cap-sd-highspeed;
cap-mmc-highspeed;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
sd-uhs-sdr104;
status = "okay";
};
&mmuart0 {
status = "okay";
};
&refclk {
clock-frequency = <125000000>;
};
&rtc {
status = "okay";
};
&syscontroller {
status = "okay";
};