SPDX: Convert all of our single license tags to Linux Kernel style

[u-boot] / arch / powerpc / cpu / mpc85xx / p1023_serdes.c

diff --git a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
index e83b0a3359834d42aae1e807e16725ff3930e3fb..482172d4e02002eddb0a6bd6b6a963240f9fa910 100644 (file)
--- a/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
+++ b/arch/powerpc/cpu/mpc85xx/p1023_serdes.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2010-2011 Freescale Semiconductor, Inc.
  * Author: Roy Zang <tie-fei.zang@freescale.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <config.h>
@@ -24,7 +23,12 @@ static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
 
 int is_serdes_configured(enum srds_prtcl device)
 {
-       int ret = (1 << device) & serdes1_prtcl_map;
+       int ret;
+
+       if (!(serdes1_prtcl_map & (1 << NONE)))
+               fsl_serdes_init();
+
+       ret = (1 << device) & serdes1_prtcl_map;
        return ret;
 }
 
@@ -36,6 +40,9 @@ 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)) {
@@ -47,4 +54,6 @@ 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);
 }