/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #include #include void variant_mainboard_final(void) { struct device *dev; if (CONFIG(PCI_ALLOW_BUS_MASTER_ANY_DEVICE)) { /* Set Master Enable for on-board PCI device if allowed. */ dev = dev_find_device(PCI_VID_SIEMENS, 0x403e, 0); if (dev) { pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); } } /* Set Full Reset Bit in Reset Control Register (I/O port CF9h). When Bit 3 is set to 1 and then a warm reset is triggered the PCH will drive SLP_S3 active (low). SLP_S3 is then used on the mainboard to generate the right reset timing. */ outb(FULL_RST, RST_CNT); }