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authorConor Dooley <conor.dooley@microchip.com>2022-04-13 08:58:36 +0100
committerStephen Boyd <sboyd@kernel.org>2022-04-22 18:40:30 -0700
commit6deb9bf4580d53fea191fa0689a4446c8937398d (patch)
tree8db58490c7768b0b96326050cfb26c34133085dd /arch/riscv/boot/dts
parent1c6a7ea32b8cfb1725ef4def26eb9f5bc6e00303 (diff)
riscv: dts: microchip: reparent mpfs clocks
The 600M clock in the fabric is not the real reference, replace it with a 125M clock which is the correct value for the icicle kit. Rename the msspllclk node to mssrefclk since this is now the input to, not the output of, the msspll clock. Control of the msspll clock has been moved into the clock configurator, so add the register range for it to the clk configurator. Finally, add a new output of the clock config block which will provide the 1M reference clock for the MTIMER and the rtc. Fixes: 528a5b1f2556 ("riscv: dts: microchip: add new peripherals to icicle kit device tree") Fixes: 0fa6107eca41 ("RISC-V: Initial DTS for Microchip ICICLE board") Reviewed-by: Daire McNamara <daire.mcnamara@microchip.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20220413075835.3354193-10-conor.dooley@microchip.com Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'arch/riscv/boot/dts')
-rw-r--r--arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts2
-rw-r--r--arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi8
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
index cd2fe80fa81a..3392153dd0f1 100644
--- a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
+++ b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
@@ -45,7 +45,7 @@
};
&refclk {
- clock-frequency = <600000000>;
+ clock-frequency = <125000000>;
};
&mmuart1 {
diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
index 3b48b7f35410..746c4d4e7686 100644
--- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
+++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
@@ -141,7 +141,7 @@
};
};
- refclk: msspllclk {
+ refclk: mssrefclk {
compatible = "fixed-clock";
#clock-cells = <0>;
};
@@ -190,7 +190,7 @@
clkcfg: clkcfg@20002000 {
compatible = "microchip,mpfs-clkcfg";
- reg = <0x0 0x20002000 0x0 0x1000>;
+ reg = <0x0 0x20002000 0x0 0x1000>, <0x0 0x3E001000 0x0 0x1000>;
clocks = <&refclk>;
#clock-cells = <1>;
};
@@ -393,8 +393,8 @@
reg = <0x0 0x20124000 0x0 0x1000>;
interrupt-parent = <&plic>;
interrupts = <80>, <81>;
- clocks = <&clkcfg CLK_RTC>;
- clock-names = "rtc";
+ clocks = <&clkcfg CLK_RTC>, <&clkcfg CLK_RTCREF>;
+ clock-names = "rtc", "rtcref";
status = "disabled";
};