From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Wed, 19 Dec 2018 10:19:47 +0000 (+0100)
Subject: bios/sdram: only show read delays when they are valid.
X-Git-Tag: 24jan2021_ls180~1430
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ebe0d567f8a5d16f2fac4bac0391e2ae59139d99;p=litex.git

bios/sdram: only show read delays when they are valid.
---

diff --git a/litex/soc/software/bios/sdram.c b/litex/soc/software/bios/sdram.c
index b00f615e..ef3280de 100644
--- a/litex/soc/software/bios/sdram.c
+++ b/litex/soc/software/bios/sdram.c
@@ -508,7 +508,10 @@ static void read_level(int module)
 	}
 	delay_max = delay;
 
-	printf("%02d+-%02d", (delay_min+delay_max)/2, (delay_max-delay_min)/2);
+	if (delay_min >= ERR_DDRPHY_DELAY)
+		printf("-");
+	else
+		printf("%02d+-%02d", (delay_min+delay_max)/2, (delay_max-delay_min)/2);
 
 	/* Set delay to the middle */
 	ddrphy_rdly_dq_rst_write(1);