diff options
Diffstat (limited to 'src/soc/intel/broadwell/sata.c')
| -rw-r--r-- | src/soc/intel/broadwell/sata.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/sata.c b/src/soc/intel/broadwell/sata.c index e9e0810de1..0e2516185a 100644 --- a/src/soc/intel/broadwell/sata.c +++ b/src/soc/intel/broadwell/sata.c @@ -92,6 +92,13 @@ static void sata_init(struct device *dev) abar = (u8 *)(pci_read_config32(dev, PCI_BASE_ADDRESS_5)); printk(BIOS_DEBUG, "ABAR: %p\n", abar); + /* CAP (HBA Capabilities) : enable power management */ + reg32 = read32(abar + 0x00); + reg32 |= 0x0c006000; /* set PSC+SSC+SALP+SSS */ + reg32 &= ~0x00020060; /* clear SXS+EMS+PMS */ + reg32 |= (1 << 18); /* SAM: SATA AHCI MODE ONLY */ + write32(abar + 0x00, reg32); + /* PI (Ports implemented) */ write32(abar + 0x0c, config->sata_port_map); (void) read32(abar + 0x0c); /* Read back 1 */ |