MPC5XXX, Motion-PRO: Fix PHY initialization problem.
After being reset in mpc5xxx_fec_init_phy(), PHY goes into FX mode, in which
networking does not function. This commit switches PHY to TX mode by clearing
the FX_SEL bit of Mode Control Register. It also reverses commit
008861a2f3ef2c062744d733787c7e530a1b8761, i.e., a temporary workaround.
Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Acked-by: Bartlomiej Sieka <tur@semihalf.com>
diff --git a/board/motionpro/motionpro.c b/board/motionpro/motionpro.c
index 1729ae7..b05e2ab 100644
--- a/board/motionpro/motionpro.c
+++ b/board/motionpro/motionpro.c
@@ -28,7 +28,7 @@
#include <common.h>
#include <mpc5xxx.h>
-
+#include <miiphy.h>
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#endif
@@ -82,6 +82,22 @@
}
+/*
+ * Additional PHY intialization. After being reset in mpc5xxx_fec_init_phy(),
+ * PHY goes into FX mode. To take it out of the FX mode and switch into
+ * desired TX operation, one needs to clear the FX_SEL bit of Mode Control
+ * Register.
+ */
+void reset_phy(void)
+{
+ unsigned short mode_control;
+
+ miiphy_read("FEC ETHERNET", CONFIG_PHY_ADDR, 0x15, &mode_control);
+ miiphy_write("FEC ETHERNET", CONFIG_PHY_ADDR, 0x15,
+ mode_control & 0xfffe);
+ return;
+}
+
#ifndef CFG_RAMBOOT
/*
* Helper function to initialize SDRAM controller.