southbridge/amd/sb700: Indicate iSATA/eSATA port type

Change-Id: I8ee757d07c82c151b36def6b709163ff144d244f
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11984
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/mainboard/asus/kgpe-d16/mainboard.c

@@ -95,6 +95,22 @@ void sb7xx_51xx_setup_sata_phys(struct device *dev)
 	pci_write_config16(dev, 0xaa, 0xa07a);
 }
 
+/* override the default SATA port setup */
+void sb7xx_51xx_setup_sata_port_indication(void *sata_bar5)
+{
+	uint32_t dword;
+
+	/* RPR7.9 Program Port Indication Registers */
+	dword = read32(sata_bar5 + 0xf8);
+	dword &= ~(0x3f << 12);	/* All ports are iSATA */
+	dword &= ~0x3f;
+	write32(sata_bar5 + 0xf8, dword);
+
+	dword = read32(sata_bar5 + 0xfc);
+	dword &= ~(0x1 << 20);	/* No eSATA ports are present */
+	write32(sata_bar5 + 0xfc, dword);
+}
+
 struct chip_operations mainboard_ops = {
 	.enable_dev = mainboard_enable,
 };

src/southbridge/amd/sb700/sata.c

@@ -74,6 +74,23 @@ void __attribute__((weak)) sb7xx_51xx_setup_sata_phys(struct device *dev)
 	pci_write_config16(dev, 0xaa, 0xA07A);
 }
 
+/* This function can be overloaded in mainboard.c */
+void __attribute__((weak)) sb7xx_51xx_setup_sata_port_indication(void *sata_bar5)
+{
+	uint32_t dword;
+
+	/* RPR7.9 Program Port Indication Registers */
+	dword = read32(sata_bar5 + 0xf8);
+	dword &= ~(0x3f << 12);	/* Ports 0 and 1 are eSATA */
+	dword |= (0x3 << 12);
+	dword &= ~0x3f;
+	write32(sata_bar5 + 0xf8, dword);
+
+	dword = read32(sata_bar5 + 0xfc);
+	dword |= 0x1 << 20;	/* At least one eSATA port is present */
+	write32(sata_bar5 + 0xfc, dword);
+}
+
 static void sata_init(struct device *dev)
 {
 	u8 byte;
@@ -244,7 +261,9 @@ static void sata_init(struct device *dev)
 	/* Program the watchdog counter to 0x10 */
 	byte = 0x10;
 	pci_write_config8(dev, 0x46, byte);
+
 	sb7xx_51xx_setup_sata_phys(dev);
+	sb7xx_51xx_setup_sata_port_indication(sata_bar5);
 
 	/* Enable the I/O, MM, BusMaster access for SATA */
 	byte = pci_read_config8(dev, 0x4);

src/southbridge/amd/sb700/sb700.h

@@ -69,6 +69,7 @@ void sb7xx_51xx_before_pci_init(void);
 #include <device/pci.h>
 /* allow override in mainboard.c */
 void sb7xx_51xx_setup_sata_phys(struct device *dev);
+void sb7xx_51xx_setup_sata_port_indication(void *sata_bar5);
 
 #endif