X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fcpu%2Fmpc85xx%2Fp1021_serdes.c;h=509051047b0cafd6e44105b240459cb33ea4b2b0;hb=de76610545f4350f8e3eac7c0c4ff6349106a9bf;hp=99a77bd2b63ed4188c35349b5e290f635fc3e636;hpb=8b485ba12b0defa0c4ed3559789250238f8331a8;p=oweals%2Fu-boot.git

diff --git a/arch/powerpc/cpu/mpc85xx/p1021_serdes.c b/arch/powerpc/cpu/mpc85xx/p1021_serdes.c
index 99a77bd2b6..509051047b 100644
--- a/arch/powerpc/cpu/mpc85xx/p1021_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1021_serdes.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010-2011 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
@@ -41,6 +40,9 @@ 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;
 }
 
@@ -55,6 +57,9 @@ void fsl_serdes_init(void)
 	int lane;
 	u32 mask, val;
 
+	if (serdes1_prtcl_map & (1 << NONE))
+		return;
+
 	debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
 
 	if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
@@ -67,6 +72,9 @@ void fsl_serdes_init(void)
 		serdes1_prtcl_map |= (1 << lane_prtcl);
 	}
 
+	/* Set the first bit to indicate serdes has been initialized */
+	serdes1_prtcl_map |= (1 << NONE);
+
 	/* Init SERDES Receiver electrical idle detection control for PCIe */
 
 	/* Lane 0 is always PCIe 1 */