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realtek: Add Lexra bus clock
The CPU peripherals on RTL83xx/RTL930x are connected to the CPU via the Lexra bus. This bus can provide a clock signal to these peripherals, but no clock driver is currently available. Instead, use a fixed-clock to provide the clock frequency, and update the dependent peripherals. Lexra bus clock frequencies: - RTL838x: 200MHz - RTL839x: 200MHz - RTL930x: 175MHz Signed-off-by: Sander Vanheule <sander@svanheule.net> Tested-by: Stijn Segers <foss@volatilesystems.org> Tested-by: Paul Fertser <fercerpav@gmail.com> Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
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parent
af2cfbda2b
commit
d3a62bea08
target/linux/realtek/dts-5.10
@ -68,6 +68,12 @@
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bootargs = "console=ttyS0,115200";
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};
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lx_clk: lx_clk {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <200000000>;
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};
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cpuintc: cpuintc {
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compatible = "mti,cpu-interrupt-controller";
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#address-cells = <0>;
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@ -116,7 +122,7 @@
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compatible = "ns16550a";
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reg = <0x2000 0x100>;
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clock-frequency = <200000000>;
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clocks = <&lx_clk>;
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interrupt-parent = <&intc>;
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interrupts = <31>;
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@ -134,7 +140,7 @@
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compatible = "ns16550a";
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reg = <0x2100 0x100>;
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clock-frequency = <200000000>;
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clocks = <&lx_clk>;
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interrupt-parent = <&intc>;
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interrupts = <30>;
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@ -80,11 +80,10 @@
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interrupt-controller;
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};
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osc: oscillator {
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lx_clk: lx_clk {
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compatible = "fixed-clock";
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#clock-cells = <1>;
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#clock-cells = <0>;
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clock-frequency = <175000000>;
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clock-output-names = "osc";
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};
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soc: soc {
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@ -119,7 +118,7 @@
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interrupt-parent = <&intc>;
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interrupts = <8>;
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interrupt-names = "ostimer";
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clocks = <&osc 0>;
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clocks = <&lx_clk>;
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};
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spi0: spi@1200 {
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@ -134,7 +133,7 @@
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compatible = "ns16550a";
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reg = <0x2000 0x100>;
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clock-frequency = <175000000>;
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clocks = <&lx_clk>;
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interrupt-parent = <&intc>;
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interrupts = <30>;
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@ -149,7 +148,7 @@
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compatible = "ns16550a";
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reg = <0x2100 0x100>;
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clock-frequency = <175000000>;
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clocks = <&lx_clk>;
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interrupt-parent = <&intc>;
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interrupts = <31>;
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