xref: /openbmc/phosphor-power/phosphor-regulators/config_files/Everest.json (revision cee2e20a)

{
    "comments": [
        "phosphor-regulators configuration file for IBM Everest systems"
    ],

    "rules": [
        {
            "comments": ["Rule to set PMBus PAGE to 0"],
            "id": "set_page0_rule",
            "actions": [
                { "i2c_write_byte": { "register": "0x00", "value": "0x00" } }
            ]
        },

        {
            "comments": ["Rule to set PMBus PAGE to 1"],
            "id": "set_page1_rule",
            "actions": [
                { "i2c_write_byte": { "register": "0x00", "value": "0x01" } }
            ]
        },

        {
            "comments": ["Rule to set output voltage of a PMBus regulator"],
            "id": "set_voltage_rule",
            "actions": [
                {
                    "comments": [
                        "Write volts value to VOUT_COMMAND in linear format.",
                        "Get volts value from configuration.  Get exponent",
                        "from VOUT_MODE.  Verify write was successful."
                    ],
                    "pmbus_write_vout_command": {
                        "format": "linear",
                        "is_verified": true
                    }
                }
            ]
        },

        {
            "comments": [
                "Rule to set output voltage of PAGE 0 of a PMBus regulator"
            ],
            "id": "set_voltage_page0_rule",
            "actions": [
                { "run_rule": "set_page0_rule" },
                { "run_rule": "set_voltage_rule" }
            ]
        },

        {
            "comments": [
                "Rule to set output voltage of PAGE 1 of a PMBus regulator"
            ],
            "id": "set_voltage_page1_rule",
            "actions": [
                { "run_rule": "set_page1_rule" },
                { "run_rule": "set_voltage_rule" }
            ]
        },

        {
            "comments": [
                "Rule to set output voltage of a PMBus regulator using",
                "PMBus OPERATION and VOUT_COMMAND"
            ],
            "id": "set_operation_and_voltage_rule",
            "actions": [
                {
                    "comments": [
                        "Set PMBus OPERATION to 0x80 indicating output voltage",
                        "is set by the PMBus VOUT_COMMAND"
                    ],
                    "i2c_write_byte": { "register": "0x01", "value": "0x80" }
                },

                {
                    "comments": [
                        "Set the output voltage using the PMBus VOUT_COMMAND"
                    ],
                    "run_rule": "set_voltage_rule"
                },

                {
                    "comments": [
                        "Set PMBus OPERATION to 0xB0 indicating output voltage",
                        "will now be set by AVSBus (AVS_VOUT_COMMAND).",
                        "Hardware settings cause the VOUT_COMMAND value to be",
                        "the initial voltage value for AVSBus."
                    ],
                    "i2c_write_byte": { "register": "0x01", "value": "0xB0" }
                }
            ]
        }
    ],

    "chassis": [
        {
            "comments": ["Chassis (drawer) 1", "Note: Devices not defined yet"],
            "number": 1,
            "inventory_path": "system/chassis"
        }
    ]
}