From: Stephen Carlson <stcar...@linux.microsoft.com>
NXP/Freescale Layerscape CPUs support high-speed serial interfaces (SERDES)
that can be configured for the application. Interfaces not used by the
application can be set to protocol 0 to turn them off and save power, but
U-Boot would emit a warning that 0 was invalid for a SERDES protocol on
boot. Replace the warning text with a notice that the SERDES is disabled.
Signed-off-by: Stephen Carlson <stcar...@linux.microsoft.com>
Cc: Priyanka Jain <priyanka.j...@nxp.com>
---
arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
index fad7a93566..181bd9c1b4 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fsl_lsch3_serdes.c
@@ -147,10 +147,14 @@ void serdes_init(u32 sd, u32 sd_addr, u32 rcwsr, u32
sd_prctl_mask,
cfg >>= sd_prctl_shift;
cfg = serdes_get_number(sd, cfg);
- printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
+ if (cfg == 0) {
+ printf("SERDES%d is disabled\n", sd + 1);
+ } else {
+ printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg,
cfg);
- if (!is_serdes_prtcl_valid(sd, cfg))
- printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1, cfg);
+ if (!is_serdes_prtcl_valid(sd, cfg))
+ printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1,
cfg);
+ }
for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes_get_prtcl(sd, cfg, lane);
--
2.17.1
