X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Fmpc8572_serdes.c;h=0e0c63a14f325621d16bd92be08c913f4d011505;hb=9a0cbae22a613dfd55e15565785749b74c19fdf0;hp=3632eb557e4e7385ac7bce20a0f10a4f5b8629e9;hpb=8b485ba12b0defa0c4ed3559789250238f8331a8;p=oweals%2Fu-boot.git

diff --git a/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c
index 3632eb557e..0e0c63a14f 100644
--- a/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/mpc8572_serdes.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
@@ -28,6 +27,9 @@ 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;
 }
 
@@ -39,6 +41,9 @@ 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)) {
@@ -62,4 +67,7 @@ void fsl_serdes_init(void)
 
 	if (!(pordevsr & MPC85xx_PORDEVSR_SGMII4_DIS))
 		serdes1_prtcl_map |= (1 << SGMII_TSEC4);
+
+	/* Set the first bit to indicate serdes has been initialized */
+	serdes1_prtcl_map |= (1 << NONE);
 }