emac: Fix clock control for 405EX and 405EXr chips

The EMAC variant in the 405EX and 405EXr chips needs the "440EP" type clock
control workaround to avoid lockups of the Rx side during reset.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Felix Radensky <felix@embedded-sol.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index 87a706694fb35f6519e4933944b06df429849d48..6fd7aa61736ed8b49e7dfc282647819823976671 100644 (file)
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -2594,6 +2594,9 @@ static int __devinit emac_init_config(struct emac_instance *dev)
                if (of_device_is_compatible(np, "ibm,emac-460ex") ||
                    of_device_is_compatible(np, "ibm,emac-460gt"))
                        dev->features |= EMAC_FTR_460EX_PHY_CLK_FIX;
+               if (of_device_is_compatible(np, "ibm,emac-405ex") ||
+                   of_device_is_compatible(np, "ibm,emac-405exr"))
+                       dev->features |= EMAC_FTR_440EP_PHY_CLK_FIX;
        } else if (of_device_is_compatible(np, "ibm,emac4")) {
                dev->features |= EMAC_FTR_EMAC4;
                if (of_device_is_compatible(np, "ibm,emac-440gx"))