主板上的 GPIO 名称

Question

如何在我的主板上找到 GPIO。 我想像这样在设备树中描述 GPIO：

&gpio {
    status = "okay";
    gpio-line-names =
    /*A0-A7*/   "BMC_CPLD_FPGA_SEL","","","","","","","",
    /*B0-B7*/   "","BMC_DEBUG_EN","","","","BMC_PPIN","PS_PWROK", "IRQ_PVDDQ_GHJ_VRHOT_LVT3",
    /*C0-C7*/   "","","","","","","","",
    /*D0-D7*/   "BIOS_MRC_DEBUG_MSG_DIS","BOARD_REV_ID0","", "BOARD_REV_ID1","IRQ_DIMM_SAVE_LVT3","BOARD_REV_ID2",
"CPU_ERR0_LVT3_BMC","CPU_ERR1_LVT3_BMC",

但是我没有关于我的主板的任何文档。 也许任何软件都可以找到GPIO及其名称？