Device tree aware EMAC driver

Based on BenH's earlier work, this is a new version of the EMAC driver
for the built-in ethernet found on PowerPC 4xx embedded CPUs.  The
same ASIC is also found in the Axon bridge chip.  This new version is
designed to work in the arch/powerpc tree, using the device tree to
probe the device, rather than the old and ugly arch/ppc OCP layer.

This driver is designed to sit alongside the old driver (that lies in
drivers/net/ibm_emac and this one in drivers/net/ibm_newemac).  The
old driver is left in place to support arch/ppc until arch/ppc itself
reaches its final demise (not too long now, with luck).

This driver still has a number of things that could do with cleaning
up, but I think they can be fixed up after merging.  Specifically:
	- Should be adjusted to properly use the dma mapping API.
Axon needs this.
	- Probe logic needs reworking, in conjuction with the general
probing code for of_platform devices.  The dependencies here between
EMAC, MAL, ZMII etc. make this complicated.  At present, it usually
works, because we initialize and register the sub-drivers before the
EMAC driver itself, and (being in driver code) runs after the devices
themselves have been instantiated from the device tree.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/net/ibm_newemac/Makefile b/drivers/net/ibm_newemac/Makefile
new file mode 100644
index 000000000000..0b5c99512762
--- /dev/null
+++ b/drivers/net/ibm_newemac/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the PowerPC 4xx on-chip ethernet driver
+#
+
+obj-$(CONFIG_IBM_NEW_EMAC) += ibm_newemac.o
+
+ibm_newemac-y := mal.o core.o phy.o
+ibm_newemac-$(CONFIG_IBM_NEW_EMAC_ZMII) += zmii.o
+ibm_newemac-$(CONFIG_IBM_NEW_EMAC_RGMII) += rgmii.o
+ibm_newemac-$(CONFIG_IBM_NEW_EMAC_TAH) += tah.o
+ibm_newemac-$(CONFIG_IBM_NEW_EMAC_DEBUG) += debug.o