i3100: add sata_ports_implemented option

[coreboot.git] / src / southbridge / intel / i3100 / sata.c

diff --git a/src/southbridge/intel/i3100/sata.c b/src/southbridge/intel/i3100/sata.c
index 1925f888ed560d1931f9bb891b112a8530b6b780..2341ca1a76732351f5e7f88d9016f077edab02a6 100644 (file)
--- a/src/southbridge/intel/i3100/sata.c
+++ b/src/southbridge/intel/i3100/sata.c
@@ -31,7 +31,14 @@ typedef struct southbridge_intel_i3100_config config_t;
 
 static void sata_init(struct device *dev)
 {
-        u8 ahci;
+       u8 ahci;
+       u32 *ahci_bar;
+       config_t *config = dev->chip_info;
+
+       if (config == NULL) {
+          printk(BIOS_ERR, "i3100_sata: error: device not in devicetree.cb!\n");
+          return;
+       }
 
        /* Get the chip configuration */
        ahci = (pci_read_config8(dev, SATA_MAP) >> 6) & 0x03;
@@ -58,6 +65,8 @@ static void sata_init(struct device *dev)
          /* IDE I/O configuration */
          pci_write_config32(dev, SATA_IIOC, 0);
 
+         ahci_bar = (u32 *)(pci_read_config32(dev, 0x27) & ~0x3ff);
+         ahci_bar[3] = config->sata_ports_implemented;
        } else {
          /* SATA configuration */
          pci_write_config8(dev, SATA_CMD, 0x07);