x86: Split out fsp_init_phase_pci() code into a new function

This code may be useful for boards that use driver model for PCI.

Note: It would be better to have driver model automatically call this
function somehow. However for now it is probably safer to have it under
board control.

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

arch/x86/include/asm/fsp/fsp_support.h

@@ -207,4 +207,11 @@ void *fsp_get_bootloader_tmp_mem(const void *hob_list, u32 *len);
  */
 void update_fsp_upd(struct upd_region *fsp_upd);
 
+/**
+ * fsp_init_phase_pci() - Tell the FSP that we have completed PCI init
+ *
+ * @return 0 if OK, -EPERM if the FSP gave an error.
+ */
+int fsp_init_phase_pci(void);
+
 #endif

arch/x86/lib/fsp/fsp_common.c

@@ -19,19 +19,24 @@ int print_cpuinfo(void)
 	return default_print_cpuinfo();
 }
 
-int board_pci_post_scan(struct pci_controller *hose)
+int fsp_init_phase_pci(void)
 {
 	u32 status;
 
 	/* call into FspNotify */
 	debug("Calling into FSP (notify phase INIT_PHASE_PCI): ");
 	status = fsp_notify(NULL, INIT_PHASE_PCI);
-	if (status != FSP_SUCCESS)
+	if (status)
 		debug("fail, error code %x\n", status);
 	else
 		debug("OK\n");
 
-	return 0;
+	return status ? -EPERM : 0;
+}
+
+int board_pci_post_scan(struct pci_controller *hose)
+{
+	return fsp_init_phase_pci();
 }
 
 void board_final_cleanup(void)