fm: Don't allow disabling of FM1-DTSEC1
The MDIO controller to talk to external PHYs is on FM1-DTSEC1 so don't
allow disabling. If we disable it we end up powering the block down in
the SoC and thus can't communicate to any external PHYs.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/drivers/net/fm/p1023.c b/drivers/net/fm/p1023.c
index b17dc40..9765da5 100644
--- a/drivers/net/fm/p1023.c
+++ b/drivers/net/fm/p1023.c
@@ -39,6 +39,11 @@
void fman_disable_port(enum fm_port port)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ /* don't allow disabling of DTSEC1 as its needed for MDIO */
+ if (port == FM1_DTSEC1)
+ return;
+
setbits_be32(&gur->devdisr, port_to_devdisr[port]);
}
diff --git a/drivers/net/fm/p3060.c b/drivers/net/fm/p3060.c
index 176e1d2..c9748a9 100644
--- a/drivers/net/fm/p3060.c
+++ b/drivers/net/fm/p3060.c
@@ -45,6 +45,11 @@
void fman_disable_port(enum fm_port port)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ /* don't allow disabling of DTSEC1 as its needed for MDIO */
+ if (port == FM1_DTSEC1)
+ return;
+
setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
}
diff --git a/drivers/net/fm/p4080.c b/drivers/net/fm/p4080.c
index 791caab..9dc6049 100644
--- a/drivers/net/fm/p4080.c
+++ b/drivers/net/fm/p4080.c
@@ -47,6 +47,11 @@
void fman_disable_port(enum fm_port port)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ /* don't allow disabling of DTSEC1 as its needed for MDIO */
+ if (port == FM1_DTSEC1)
+ return;
+
setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
}
diff --git a/drivers/net/fm/p5020.c b/drivers/net/fm/p5020.c
index 69c27d2..a7a6e43 100644
--- a/drivers/net/fm/p5020.c
+++ b/drivers/net/fm/p5020.c
@@ -43,6 +43,11 @@
void fman_disable_port(enum fm_port port)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ /* don't allow disabling of DTSEC1 as its needed for MDIO */
+ if (port == FM1_DTSEC1)
+ return;
+
setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
}