x86: ivybridge: Convert enable_usb_bar() to use DM PCI API

Convert this function over to use the driver model PCI API. In this case
we want to avoid using the real PCI devices since they have not yet been
probed. Instead, write directly to their PCI configuration address.

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

arch/x86/cpu/ivybridge/cpu.c

@@ -133,33 +133,33 @@ int arch_cpu_init_dm(void)
  *
  * This is used to speed up the resume path.
  */
-static void enable_usb_bar(void)
+static void enable_usb_bar(struct udevice *bus)
 {
 	pci_dev_t usb0 = PCH_EHCI1_DEV;
 	pci_dev_t usb1 = PCH_EHCI2_DEV;
 	pci_dev_t usb3 = PCH_XHCI_DEV;
-	u32 cmd;
+	ulong cmd;
 
 	/* USB Controller 1 */
-	x86_pci_write_config32(usb0, PCI_BASE_ADDRESS_0,
-			       PCH_EHCI0_TEMP_BAR0);
-	cmd = x86_pci_read_config32(usb0, PCI_COMMAND);
+	pci_bus_write_config(bus, usb0, PCI_BASE_ADDRESS_0,
+			     PCH_EHCI0_TEMP_BAR0, PCI_SIZE_32);
+	pci_bus_read_config(bus, usb0, PCI_COMMAND, &cmd, PCI_SIZE_32);
 	cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
-	x86_pci_write_config32(usb0, PCI_COMMAND, cmd);
+	pci_bus_write_config(bus, usb0, PCI_COMMAND, cmd, PCI_SIZE_32);
 
-	/* USB Controller 1 */
-	x86_pci_write_config32(usb1, PCI_BASE_ADDRESS_0,
-			       PCH_EHCI1_TEMP_BAR0);
-	cmd = x86_pci_read_config32(usb1, PCI_COMMAND);
+	/* USB Controller 2 */
+	pci_bus_write_config(bus, usb1, PCI_BASE_ADDRESS_0,
+			     PCH_EHCI1_TEMP_BAR0, PCI_SIZE_32);
+	pci_bus_read_config(bus, usb1, PCI_COMMAND, &cmd, PCI_SIZE_32);
 	cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
-	x86_pci_write_config32(usb1, PCI_COMMAND, cmd);
+	pci_bus_write_config(bus, usb1, PCI_COMMAND, cmd, PCI_SIZE_32);
 
-	/* USB3 Controller */
-	x86_pci_write_config32(usb3, PCI_BASE_ADDRESS_0,
-			       PCH_XHCI_TEMP_BAR0);
-	cmd = x86_pci_read_config32(usb3, PCI_COMMAND);
+	/* USB3 Controller 1 */
+	pci_bus_write_config(bus, usb3, PCI_BASE_ADDRESS_0,
+			     PCH_XHCI_TEMP_BAR0, PCI_SIZE_32);
+	pci_bus_read_config(bus, usb3, PCI_COMMAND, &cmd, PCI_SIZE_32);
 	cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
-	x86_pci_write_config32(usb3, PCI_COMMAND, cmd);
+	pci_bus_write_config(bus, usb3, PCI_COMMAND, cmd, PCI_SIZE_32);
 }
 
 static int report_bist_failure(void)
@@ -244,7 +244,7 @@ int print_cpuinfo(void)
 
 	/* Prepare USB controller early in S3 resume */
 	if (boot_mode == PEI_BOOT_RESUME)
-		enable_usb_bar();
+		enable_usb_bar(pci_get_controller(lpc->parent));
 
 	gd->arch.pei_boot_mode = boot_mode;