X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Fbsc9132_serdes.c;h=8604f4a8e8fe04ec4cc3379a2c7fcd5b3ad58d35;hb=c590e62d3b6f6dd72eae1183614f919e3fd7ffcb;hp=300a4dbcf659b08fab22833d1bab80a8bd1cc043;hpb=9cd9b34dc7f247fd0fce08ab688bf8197f1bfdbc;p=oweals%2Fu-boot.git

diff --git a/arch/powerpc/cpu/mpc85xx/bsc9132_serdes.c b/arch/powerpc/cpu/mpc85xx/bsc9132_serdes.c
index 300a4dbcf6..8604f4a8e8 100644
--- a/arch/powerpc/cpu/mpc85xx/bsc9132_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/bsc9132_serdes.c
@@ -1,11 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Freescale Semiconductor, Inc.
  * Author: Prabhakar Kushwaha <prabhakar@freescale.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
  */
 
 #include <config.h>
@@ -71,6 +67,9 @@ static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
 
 int is_serdes_configured(enum srds_prtcl prtcl)
 {
+	if (!(serdes1_prtcl_map & (1 << NONE)))
+		fsl_serdes_init();
+
 	return (1 << prtcl) & serdes1_prtcl_map;
 }
 
@@ -82,6 +81,9 @@ void fsl_serdes_init(void)
 				MPC85xx_PORDEVSR_IO_SEL_SHIFT;
 	int lane;
 
+	if (serdes1_prtcl_map & (1 << NONE))
+		return;
+
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
 	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
@@ -93,4 +95,7 @@ void fsl_serdes_init(void)
 		enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
+
+	/* Set the first bit to indicate serdes has been initialized */
+	serdes1_prtcl_map |= (1 << NONE);
 }