Module Name: src
Committed By: jmcneill
Date: Wed Mar 13 10:28:37 UTC 2019
Modified Files:
src/sys/arch/arm/rockchip: rk_emmcphy.c
Log Message:
Set drive strength and output tap delay
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/arm/rockchip/rk_emmcphy.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/rockchip/rk_emmcphy.c
diff -u src/sys/arch/arm/rockchip/rk_emmcphy.c:1.2 src/sys/arch/arm/rockchip/rk_emmcphy.c:1.3
--- src/sys/arch/arm/rockchip/rk_emmcphy.c:1.2 Sun Mar 10 19:47:03 2019
+++ src/sys/arch/arm/rockchip/rk_emmcphy.c Wed Mar 13 10:28:37 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: rk_emmcphy.c,v 1.2 2019/03/10 19:47:03 jmcneill Exp $ */
+/* $NetBSD: rk_emmcphy.c,v 1.3 2019/03/13 10:28:37 jmcneill Exp $ */
/*-
* Copyright (c) 2019 Jared McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rk_emmcphy.c,v 1.2 2019/03/10 19:47:03 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rk_emmcphy.c,v 1.3 2019/03/13 10:28:37 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -139,6 +139,18 @@ rk_emmcphy_enable(device_t dev, void *pr
syscon_lock(sc->sc_syscon);
+ if (enable) {
+ /* Drive strength */
+ mask = PHYCTRL_DR_TY;
+ val = __SHIFTIN(0, PHYCTRL_DR_TY);
+ WR4(sc, GRF_EMMCPHY_CON6, (mask << 16) | val);
+
+ /* Enable output tap delay */
+ mask = PHYCTRL_OTAPDLYENA | PHYCTRL_OTAPDLYSEL;
+ val = PHYCTRL_OTAPDLYENA | __SHIFTIN(4, PHYCTRL_OTAPDLYSEL);
+ WR4(sc, GRF_EMMCPHY_CON0, (mask << 16) | val);
+ }
+
/* Power down PHY and disable DLL before making changes */
mask = PHYCTRL_ENDLL | PHYCTRL_PDB;
val = 0;
