From 48f3746fe5a9c59448ef0ea614bde4520bf7540b Mon Sep 17 00:00:00 2001 From: Markus Stockhausen Date: Thu, 25 Aug 2022 08:24:13 +0200 Subject: [PATCH] realtek: switch RTL838X/RTL839X DT to new clock driver Use new DT clockdriver syntax for RTL838X/RTL839X targets. To make it work we need to change some nodes: - define the external oscillator speed (25MHz) - define SRAM - add clock controller - Add second CPU for RTL839X - map all devices to new clocks - Remove dummy LXB clock - add CPU OPP table Signed-off-by: Markus Stockhausen --- target/linux/realtek/dts-5.10/rtl838x.dtsi | 68 +++++++++++++--- target/linux/realtek/dts-5.10/rtl839x.dtsi | 93 +++++++++++++++++++--- 2 files changed, 141 insertions(+), 20 deletions(-) diff --git a/target/linux/realtek/dts-5.10/rtl838x.dtsi b/target/linux/realtek/dts-5.10/rtl838x.dtsi index 41fdbdae20b..f92af17ef10 100644 --- a/target/linux/realtek/dts-5.10/rtl838x.dtsi +++ b/target/linux/realtek/dts-5.10/rtl838x.dtsi @@ -1,5 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-or-later OR MIT +#include + /dts-v1/; #define STRINGIZE(s) #s @@ -60,25 +62,63 @@ compatible = "realtek,rtl838x-soc"; + osc: oscillator { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <25000000>; + }; + + ccu: clock-controller { + compatible = "realtek,rtl8380-clock"; + #clock-cells = <1>; + clocks = <&osc>; + clock-names = "ref_clk"; + }; + cpus { #address-cells = <1>; #size-cells = <0>; - frequency = <500000000>; cpu@0 { compatible = "mips,mips4KEc"; reg = <0>; + clocks = <&ccu CLK_CPU>; + operating-points-v2 = <&cpu_opp_table>; }; }; - chosen { - bootargs = "console=ttyS0,115200"; + cpu_opp_table: opp-table-0 { + compatible = "operating-points-v2"; + opp-shared; + + opp00 { + opp-hz = /bits/ 64 <325000000>; + }; + opp01 { + opp-hz = /bits/ 64 <350000000>; + }; + opp02 { + opp-hz = /bits/ 64 <375000000>; + }; + opp03 { + opp-hz = /bits/ 64 <400000000>; + }; + opp04 { + opp-hz = /bits/ 64 <425000000>; + }; + opp05 { + opp-hz = /bits/ 64 <450000000>; + }; + opp06 { + opp-hz = /bits/ 64 <475000000>; + }; + opp07 { + opp-hz = /bits/ 64 <500000000>; + }; }; - lx_clk: lx_clk { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <200000000>; + chosen { + bootargs = "console=ttyS0,115200"; }; cpuintc: cpuintc { @@ -116,7 +156,7 @@ compatible = "ns16550a"; reg = <0x2000 0x100>; - clocks = <&lx_clk>; + clocks = <&ccu CLK_LXB>; interrupt-parent = <&intc>; interrupts = <31 1>; @@ -134,7 +174,7 @@ compatible = "ns16550a"; reg = <0x2100 0x100>; - clocks = <&lx_clk>; + clocks = <&ccu CLK_LXB>; interrupt-parent = <&intc>; interrupts = <30 0>; @@ -153,7 +193,7 @@ realtek,reset-mode = "soc"; - clocks = <&lx_clk>; + clocks = <&ccu CLK_LXB>; timeout-sec = <30>; interrupt-parent = <&intc>; @@ -220,6 +260,14 @@ }; }; + sram0: sram@9f000000 { + compatible = "mmio-sram"; + reg = <0x9f000000 0x10000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x9f000000 0x10000>; + }; + switch0: switch@1b000000 { compatible = "realtek,rtl83xx-switch"; diff --git a/target/linux/realtek/dts-5.10/rtl839x.dtsi b/target/linux/realtek/dts-5.10/rtl839x.dtsi index cfed68eb953..b40ca83ac31 100644 --- a/target/linux/realtek/dts-5.10/rtl839x.dtsi +++ b/target/linux/realtek/dts-5.10/rtl839x.dtsi @@ -1,5 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-or-later OR MIT +#include + /dts-v1/; #define STRINGIZE(s) #s @@ -53,25 +55,88 @@ compatible = "realtek,rtl839x-soc"; + osc: oscillator { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <25000000>; + }; + + ccu: clock-controller { + compatible = "realtek,rtl8390-clock"; + #clock-cells = <1>; + clocks = <&osc>; + clock-names = "ref_clk"; + }; + cpus { #address-cells = <1>; #size-cells = <0>; - frequency = <700000000>; cpu@0 { compatible = "mips,mips34Kc"; reg = <0>; + clocks = <&ccu CLK_CPU>; + operating-points-v2 = <&cpu_opp_table>; + }; + + cpu@1 { + compatible = "mips,mips34Kc"; + reg = <1>; + clocks = <&ccu CLK_CPU>; + operating-points-v2 = <&cpu_opp_table>; }; }; - chosen { - bootargs = "console=ttyS0,115200"; + cpu_opp_table: opp-table-0 { + compatible = "operating-points-v2"; + opp-shared; + + opp00 { + opp-hz = /bits/ 64 <425000000>; + }; + opp01 { + opp-hz = /bits/ 64 <450000000>; + }; + opp02 { + opp-hz = /bits/ 64 <475000000>; + }; + opp03 { + opp-hz = /bits/ 64 <500000000>; + }; + opp04 { + opp-hz = /bits/ 64 <525000000>; + }; + opp05 { + opp-hz = /bits/ 64 <550000000>; + }; + opp06 { + opp-hz = /bits/ 64 <575000000>; + }; + opp07 { + opp-hz = /bits/ 64 <600000000>; + }; + opp08 { + opp-hz = /bits/ 64 <625000000>; + }; + opp09 { + opp-hz = /bits/ 64 <650000000>; + }; + opp10 { + opp-hz = /bits/ 64 <675000000>; + }; + opp11 { + opp-hz = /bits/ 64 <700000000>; + }; + opp12 { + opp-hz = /bits/ 64 <725000000>; + }; + opp13 { + opp-hz = /bits/ 64 <750000000>; + }; }; - lx_clk: lx_clk { - compatible = "fixed-clock"; - #clock-cells = <0>; - clock-frequency = <200000000>; + chosen { + bootargs = "console=ttyS0,115200"; }; cpuintc: cpuintc { @@ -109,7 +174,7 @@ compatible = "ns16550a"; reg = <0x2000 0x100>; - clocks = <&lx_clk>; + clocks = <&ccu CLK_LXB>; interrupt-parent = <&intc>; interrupts = <31 1>; @@ -127,7 +192,7 @@ compatible = "ns16550a"; reg = <0x2100 0x100>; - clocks = <&lx_clk>; + clocks = <&ccu CLK_LXB>; interrupt-parent = <&intc>; interrupts = <30 2>; @@ -160,7 +225,7 @@ realtek,reset-mode = "soc"; - clocks = <&lx_clk>; + clocks = <&ccu CLK_LXB>; timeout-sec = <30>; interrupt-parent = <&intc>; @@ -215,6 +280,14 @@ }; }; + sram0: sram@9f000000 { + compatible = "mmio-sram"; + reg = <0x9f000000 0x18000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x9f000000 0x18000>; + }; + switch0: switch@1b000000 { status = "okay"; compatible = "realtek,rtl83xx-switch"; -- 2.30.2