x86: Move link to use driver model for SCSI

As a demonstration of how to use SCSI with driver model, move link over
to use this. This patch needs more work, but illustrates the concept.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/cpu/ivybridge/sata.c

@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <ahci.h>
 #include <dm.h>
 #include <fdtdec.h>
 #include <asm/io.h>
@@ -208,6 +209,20 @@ static void bd82x6x_sata_enable(struct udevice *dev)
 	dm_pci_write_config16(dev, 0x90, map);
 }
 
+static int bd82x6x_sata_bind(struct udevice *dev)
+{
+	struct udevice *scsi_dev;
+	int ret;
+
+	if (gd->flags & GD_FLG_RELOC) {
+		ret = ahci_bind_scsi(dev, &scsi_dev);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 static int bd82x6x_sata_probe(struct udevice *dev)
 {
 	struct udevice *pch;
@@ -219,8 +234,12 @@ static int bd82x6x_sata_probe(struct udevice *dev)
 
 	if (!(gd->flags & GD_FLG_RELOC))
 		bd82x6x_sata_enable(dev);
-	else
+	else {
 		bd82x6x_sata_init(dev, pch);
+		ret = ahci_probe_scsi(dev);
+		if (ret)
+			return ret;
+	}
 
 	return 0;
 }
@@ -234,5 +253,6 @@ U_BOOT_DRIVER(ahci_ivybridge_drv) = {
 	.name		= "ahci_ivybridge",
 	.id		= UCLASS_AHCI,
 	.of_match	= bd82x6x_ahci_ids,
+	.bind		= bd82x6x_sata_bind,
 	.probe		= bd82x6x_sata_probe,
 };

configs/chromebook_link64_defconfig

@@ -58,6 +58,8 @@ CONFIG_SPL_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_SPL_SYSCON=y
 CONFIG_SCSI=y
+CONFIG_DM_SCSI=y
+CONFIG_BLK=y
 CONFIG_CPU=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_INTEL=y

configs/chromebook_link_defconfig

@@ -41,6 +41,8 @@ CONFIG_OF_CONTROL=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_SCSI=y
+CONFIG_DM_SCSI=y
+CONFIG_BLK=y
 CONFIG_CPU=y
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_INTEL=y

configs/chromebox_panther_defconfig

@@ -37,6 +37,8 @@ CONFIG_OF_CONTROL=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_SCSI=y
+CONFIG_DM_SCSI=y
+CONFIG_BLK=y
 CONFIG_CROS_EC=y
 CONFIG_CROS_EC_LPC=y
 CONFIG_SPI_FLASH=y