| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Imagination Pistachio SoC |
| 2 | ========================= |
| 3 | |
| 4 | Required properties: |
| 5 | -------------------- |
| 6 | - compatible: Must include "img,pistachio". |
| 7 | |
| 8 | CPU nodes: |
| 9 | ---------- |
| 10 | A "cpus" node is required. Required properties: |
| 11 | - #address-cells: Must be 1. |
| 12 | - #size-cells: Must be 0. |
| 13 | A CPU sub-node is also required for at least CPU 0. Since the topology may |
| 14 | be probed via CPS, it is not necessary to specify secondary CPUs. Required |
| 15 | propertis: |
| 16 | - device_type: Must be "cpu". |
| 17 | - compatible: Must be "mti,interaptiv". |
| 18 | - reg: CPU number. |
| 19 | - clocks: Must include the CPU clock. See ../../clock/clock-bindings.txt for |
| 20 | details on clock bindings. |
| 21 | Example: |
| 22 | cpus { |
| 23 | #address-cells = <1>; |
| 24 | #size-cells = <0>; |
| 25 | |
| 26 | cpu0: cpu@0 { |
| 27 | device_type = "cpu"; |
| 28 | compatible = "mti,interaptiv"; |
| 29 | reg = <0>; |
| 30 | clocks = <&clk_core CLK_MIPS>; |
| 31 | }; |
| 32 | }; |
| 33 | |
| 34 | |
| 35 | Boot protocol: |
| 36 | -------------- |
| 37 | In accordance with the MIPS UHI specification[1], the bootloader must pass the |
| 38 | following arguments to the kernel: |
| 39 | - $a0: -2. |
| 40 | - $a1: KSEG0 address of the flattened device-tree blob. |
| 41 | |
| 42 | [1] http://prplfoundation.org/wiki/MIPS_documentation |