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 87a7066..6fd7aa6 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"))