/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/device.h> #include <device/pci.h> #include <device/pci_ops.h> #include <amdblocks/sata.h> #include <soc/southbridge.h> void soc_enable_sata_features(struct device *dev) { u8 *ahci_ptr; u32 misc_ctl, cap_cfg; u32 temp; /* unlock the write-protect */ misc_ctl = pci_read_config32(dev, SATA_MISC_CONTROL_REG); misc_ctl |= SATA_MISC_SUBCLASS_WREN; pci_write_config32(dev, SATA_MISC_CONTROL_REG, misc_ctl); /* set the SATA AHCI mode to allow port expanders */ ahci_ptr = (u8 *)(uintptr_t)ALIGN_DOWN( pci_read_config32(dev, PCI_BASE_ADDRESS_5), 256); cap_cfg = read32(ahci_ptr + SATA_CAPABILITIES_REG); cap_cfg |= SATA_CAPABILITY_SPM; write32(ahci_ptr + SATA_CAPABILITIES_REG, cap_cfg); /* lock the write-protect */ temp = pci_read_config32(dev, SATA_MISC_CONTROL_REG); temp &= ~SATA_MISC_SUBCLASS_WREN; pci_write_config32(dev, SATA_MISC_CONTROL_REG, temp); };