diff options
Diffstat (limited to 'src/soc/intel/snowridge/sata.c')
| -rw-r--r-- | src/soc/intel/snowridge/sata.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/soc/intel/snowridge/sata.c b/src/soc/intel/snowridge/sata.c new file mode 100644 index 0000000000..bdd881d996 --- /dev/null +++ b/src/soc/intel/snowridge/sata.c @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <console/console.h> +#include <device/device.h> +#include <device/mmio.h> +#include <device/pci.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <soc/sata.h> + +static void sata_init(struct device *dev) +{ + uint32_t reg32, abar; + + printk(BIOS_DEBUG, "Set SATA controller in AHCI mode.\n"); + + uint16_t reg16 = pci_read_config16(dev, SATA_MAP); + reg16 &= ~(3 << 6); + reg16 |= SATA_MAP_AHCI; + pci_write_config16(dev, SATA_MAP, reg16); + + /* Initialize AHCI memory-mapped space */ + abar = pci_read_config32(dev, SATA_ABAR); + + /* Enable AHCI Mode */ + reg32 = read32p(abar + SATA_GHC); + reg32 |= SATA_GHC_AE; + write32p(abar + SATA_GHC, reg32); +} + +static struct device_operations snr_sata_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = sata_init, + .final = pci_dev_request_bus_master, + .ops_pci = &pci_dev_ops_pci, +}; + +static const unsigned short snr_sata_ids[] = { + PCI_DID_INTEL_SNR_SATA0, + PCI_DID_INTEL_SNR_SATA2, + 0, +}; + +static const struct pci_driver snr_sata_driver __pci_driver = { + .ops = &snr_sata_ops, + .vendor = PCI_VID_INTEL, + .devices = snr_sata_ids, +}; |