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riscv: dts: microchip: move timebase-frequency to mpfs.dtsi

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The timebase-frequency on PolarFire SoC is not set by an oscillator on
the board, but rather by an internal divider, so move the property to
mpfs.dtsi.

This looks to be copy-pasta from the SiFive Unleashed as the comments
in both places were almost identical. In the Unleashed's case this looks
to actually be valid, as the clock is provided by a crystal on the PCB.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
CC: Conor Dooley <conor.dooley@microchip.com>
CC: Daire McNamara <daire.mcnamara@microchip.com>
CC: Rob Herring <robh+dt@kernel.org>
CC: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
CC: Paul Walmsley <paul.walmsley@sifive.com>
CC: Palmer Dabbelt <palmer@dabbelt.com>
CC: linux-riscv@lists.infradead.org
CC: devicetree@vger.kernel.org
This commit is contained in:
Conor Dooley 2023-11-26 11:40:54 +00:00
parent e80ed63aff
commit 79997eda0d
6 changed files with 1 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
View file

@ -8,9 +8,6 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
/* Clock frequency (in Hz) of the rtcclk */
#define RTCCLK_FREQ 1000000
/ {
model = "Microchip PolarFire-SoC Icicle Kit";
compatible = "microchip,mpfs-icicle-reference-rtlv2210", "microchip,mpfs-icicle-kit",
@ -29,10 +26,6 @@ chosen {
stdout-path = "serial1:115200n8";
};
cpus {
timebase-frequency = <RTCCLK_FREQ>;
};
leds {
compatible = "gpio-leds";

7
arch/riscv/boot/dts/microchip/mpfs-m100pfsevp.dts
View file

@ -10,9 +10,6 @@
#include "mpfs.dtsi"
#include "mpfs-m100pfs-fabric.dtsi"
/* Clock frequency (in Hz) of the rtcclk */
#define MTIMER_FREQ 1000000
/ {
model = "Aries Embedded M100PFEVPS";
compatible = "aries,m100pfsevp", "microchip,mpfs";
@ -33,10 +30,6 @@ chosen {
stdout-path = "serial1:115200n8";
};
cpus {
timebase-frequency = <MTIMER_FREQ>;
};
ddrc_cache_lo: memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x40000000>;

7
arch/riscv/boot/dts/microchip/mpfs-polarberry.dts
View file

@ -6,9 +6,6 @@
#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";
@ -22,10 +19,6 @@ chosen {
stdout-path = "serial0:115200n8";
};
cpus {
timebase-frequency = <MTIMER_FREQ>;
};
ddrc_cache_lo: memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x2e000000>;

7
arch/riscv/boot/dts/microchip/mpfs-sev-kit.dts
View file

@ -6,9 +6,6 @@
#include "mpfs.dtsi"
#include "mpfs-sev-kit-fabric.dtsi"
/* Clock frequency (in Hz) of the rtcclk */
#define MTIMER_FREQ 1000000
/ {
#address-cells = <2>;
#size-cells = <2>;
@ -28,10 +25,6 @@ chosen {
stdout-path = "serial1:115200n8";
};
cpus {
timebase-frequency = <MTIMER_FREQ>;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;

7
arch/riscv/boot/dts/microchip/mpfs-tysom-m.dts
View file

@ -11,9 +11,6 @@
#include "mpfs.dtsi"
#include "mpfs-tysom-m-fabric.dtsi"
/* Clock frequency (in Hz) of the rtcclk */
#define MTIMER_FREQ 1000000
/ {
model = "Aldec TySOM-M-MPFS250T-REV2";
compatible = "aldec,tysom-m-mpfs250t-rev2", "microchip,mpfs";
@ -34,10 +31,6 @@ chosen {
stdout-path = "serial1:115200n8";
};
cpus {
timebase-frequency = <MTIMER_FREQ>;
};
ddrc_cache_lo: memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x0 0x30000000>;

1
arch/riscv/boot/dts/microchip/mpfs.dtsi
View file

@ -13,6 +13,7 @@ / {
cpus {
#address-cells = <1>;
#size-cells = <0>;
timebase-frequency = <1000000>;
cpu0: cpu@0 {
compatible = "sifive,e51", "sifive,rocket0", "riscv";