From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Fri, 8 Aug 2014 13:57:42 +0000 (+0800)
Subject: bios/sdram: set ODT and RESET_N through DFII
X-Git-Tag: 24jan2021_ls180~2674
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b61dced90919f7b4e9fb4ce05b79a3a775e59d75;p=litex.git

bios/sdram: set ODT and RESET_N through DFII
---

diff --git a/software/bios/sdram.c b/software/bios/sdram.c
index 61cef94d..58bfbc98 100644
--- a/software/bios/sdram.c
+++ b/software/bios/sdram.c
@@ -26,13 +26,13 @@ static void cdelay(int i)
 
 void sdrsw(void)
 {
-	dfii_control_write(DFII_CONTROL_CKE);
+	dfii_control_write(DFII_CONTROL_CKE|DFII_CONTROL_ODT|DFII_CONTROL_RESET_N);
 	printf("SDRAM now under software control\n");
 }
 
 void sdrhw(void)
 {
-	dfii_control_write(DFII_CONTROL_SEL|DFII_CONTROL_CKE);
+	dfii_control_write(DFII_CONTROL_SEL);
 	printf("SDRAM now under hardware control\n");
 }
 
@@ -163,7 +163,7 @@ int sdrinit(void)
 	printf("Initializing SDRAM...\n");
 	
 	init_sequence();
-	dfii_control_write(DFII_CONTROL_SEL|DFII_CONTROL_CKE);
+	dfii_control_write(DFII_CONTROL_SEL);
 	if(!memtest())
 		return 0;