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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm/boot/dts/integratorcp.dts | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/boot/dts/integratorcp.dts')
-rw-r--r-- | arch/arm/boot/dts/integratorcp.dts | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/integratorcp.dts b/arch/arm/boot/dts/integratorcp.dts new file mode 100644 index 000000000..01fa229e1 --- /dev/null +++ b/arch/arm/boot/dts/integratorcp.dts @@ -0,0 +1,319 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree for the ARM Integrator/CP platform + */ + +/dts-v1/; +/include/ "integrator.dtsi" + +/ { + model = "ARM Integrator/CP"; + compatible = "arm,integrator-cp"; + + chosen { + bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk"; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + /* + * Since the board has pluggable CPU modules, we + * cannot define a proper compatible here. Let the + * boot loader fill in the apropriate compatible + * string if necessary. + */ + /* compatible = "arm,arm920t"; */ + reg = <0>; + /* + * TBD comment. + */ + /* kHz uV */ + operating-points = <50000 0 + 48000 0>; + clocks = <&cmcore>; + clock-names = "cpu"; + clock-latency = <1000000>; /* 1 ms */ + }; + }; + + /* + * The Integrator/CP overall clocking architecture can be found in + * ARM DUI 0184B page 7-28 "Integrator/CP922T system clocks" which + * appear to illustrate the layout used in most configurations. + */ + + /* The codec chrystal operates at 24.576 MHz */ + xtal_codec: xtal24.576@24.576M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24576000>; + }; + + /* The chrystal is divided by 2 by the codec for the AACI bit clock */ + aaci_bitclk: aaci_bitclk@12.288M { + #clock-cells = <0>; + compatible = "fixed-factor-clock"; + clock-div = <2>; + clock-mult = <1>; + clocks = <&xtal_codec>; + }; + + /* This is a 25MHz chrystal on the base board */ + xtal25mhz: xtal25mhz@25M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <25000000>; + }; + + /* The UART clock is 14.74 MHz divided from 25MHz by an ICS525 */ + uartclk: uartclk@14.74M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <14745600>; + }; + + /* Actually sysclk I think */ + pclk: pclk@0 { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <0>; + }; + + core-module@10000000 { + /* 24 MHz chrystal on the core module */ + cm24mhz: cm24mhz@24M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <24000000>; + }; + + /* Oscillator on the core module, clocks the CPU core */ + cmcore: cmosc@24M { + compatible = "arm,syscon-icst525-integratorcp-cm-core"; + #clock-cells = <0>; + lock-offset = <0x14>; + vco-offset = <0x08>; + clocks = <&cm24mhz>; + }; + + /* Oscillator on the core module, clocks the memory bus */ + cmmem: cmosc@24M { + compatible = "arm,syscon-icst525-integratorcp-cm-mem"; + #clock-cells = <0>; + lock-offset = <0x14>; + vco-offset = <0x08>; + clocks = <&cm24mhz>; + }; + + /* Auxilary oscillator on the core module, clocks the CLCD */ + auxosc: auxosc@24M { + compatible = "arm,syscon-icst525"; + #clock-cells = <0>; + lock-offset = <0x14>; + vco-offset = <0x1c>; + clocks = <&cm24mhz>; + }; + + /* The KMI clock is the 24 MHz oscillator divided to 8MHz */ + kmiclk: kmiclk@1M { + #clock-cells = <0>; + compatible = "fixed-factor-clock"; + clock-div = <3>; + clock-mult = <1>; + clocks = <&cm24mhz>; + }; + + /* The timer clock is the 24 MHz oscillator divided to 1MHz */ + timclk: timclk@1M { + #clock-cells = <0>; + compatible = "fixed-factor-clock"; + clock-div = <24>; + clock-mult = <1>; + clocks = <&cm24mhz>; + }; + }; + + syscon { + compatible = "arm,integrator-cp-syscon", "syscon"; + reg = <0xcb000000 0x100>; + }; + + timer0: timer@13000000 { + /* TIMER0 runs directly on the 25MHz chrystal */ + compatible = "arm,integrator-cp-timer"; + clocks = <&xtal25mhz>; + }; + + timer1: timer@13000100 { + /* TIMER1 runs @ 1MHz */ + compatible = "arm,integrator-cp-timer"; + clocks = <&timclk>; + }; + + timer2: timer@13000200 { + /* TIMER2 runs @ 1MHz */ + compatible = "arm,integrator-cp-timer"; + clocks = <&timclk>; + }; + + pic: pic@14000000 { + valid-mask = <0x1fc003ff>; + }; + + cic: cic@10000040 { + compatible = "arm,versatile-fpga-irq"; + #interrupt-cells = <1>; + interrupt-controller; + reg = <0x10000040 0x100>; + clear-mask = <0xffffffff>; + valid-mask = <0x00000007>; + }; + + /* The SIC is cascaded off IRQ 26 on the PIC */ + sic: sic@ca000000 { + compatible = "arm,versatile-fpga-irq"; + interrupt-parent = <&pic>; + interrupts = <26>; + #interrupt-cells = <1>; + interrupt-controller; + reg = <0xca000000 0x100>; + clear-mask = <0x00000fff>; + valid-mask = <0x00000fff>; + }; + + ethernet@c8000000 { + compatible = "smsc,lan91c111"; + reg = <0xc8000000 0x10>; + interrupt-parent = <&pic>; + interrupts = <27>; + }; + + bridge { + compatible = "ti,ths8134a", "ti,ths8134"; + #address-cells = <1>; + #size-cells = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + vga_bridge_in: endpoint { + remote-endpoint = <&clcd_pads_vga_dac>; + }; + }; + + port@1 { + reg = <1>; + + vga_bridge_out: endpoint { + remote-endpoint = <&vga_con_in>; + }; + }; + }; + }; + + vga { + compatible = "vga-connector"; + + port { + vga_con_in: endpoint { + remote-endpoint = <&vga_bridge_out>; + }; + }; + }; + + fpga { + /* + * These PrimeCells are at the same location and using + * the same interrupts in all Integrators, but in the CP + * slightly newer versions are deployed. + */ + rtc@15000000 { + compatible = "arm,pl031", "arm,primecell"; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + uart@16000000 { + compatible = "arm,pl011", "arm,primecell"; + clocks = <&uartclk>, <&pclk>; + clock-names = "uartclk", "apb_pclk"; + }; + + uart@17000000 { + compatible = "arm,pl011", "arm,primecell"; + clocks = <&uartclk>, <&pclk>; + clock-names = "uartclk", "apb_pclk"; + }; + + kmi@18000000 { + compatible = "arm,pl050", "arm,primecell"; + clocks = <&kmiclk>, <&pclk>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + + kmi@19000000 { + compatible = "arm,pl050", "arm,primecell"; + clocks = <&kmiclk>, <&pclk>; + clock-names = "KMIREFCLK", "apb_pclk"; + }; + + /* + * These PrimeCells are only available on the Integrator/CP + */ + mmc@1c000000 { + compatible = "arm,pl180", "arm,primecell"; + reg = <0x1c000000 0x1000>; + interrupts = <23 24>; + max-frequency = <515633>; + clocks = <&uartclk>, <&pclk>; + clock-names = "mclk", "apb_pclk"; + }; + + aaci@1d000000 { + compatible = "arm,pl041", "arm,primecell"; + reg = <0x1d000000 0x1000>; + interrupts = <25>; + clocks = <&pclk>; + clock-names = "apb_pclk"; + }; + + clcd@c0000000 { + compatible = "arm,pl110", "arm,primecell"; + reg = <0xC0000000 0x1000>; + interrupts = <22>; + clocks = <&auxosc>, <&pclk>; + clock-names = "clcdclk", "apb_pclk"; + /* 640x480 16bpp @ 25.175MHz is 36827428 bytes/s */ + max-memory-bandwidth = <40000000>; + + /* + * This port is routed through a PLD (Programmable + * Logic Device) that routes the output from the CLCD + * (after transformations) to the VGA DAC and also an + * external panel connector. The PLD is essential for + * supporting RGB565/BGR565. + * + * The signals from the port thus reaches two endpoints. + * The PLD is managed through a few special bits in the + * FPGA "sysreg". + * + * This arrangement can be clearly seen in + * ARM DUI 0225D, page 3-41, figure 3-19. + */ + port@0 { + clcd_pads_vga_dac: endpoint { + remote-endpoint = <&vga_bridge_in>; + arm,pl11x,tft-r0g0b0-pads = <0 8 16>; + }; + }; + }; + }; +}; |