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authorDavid Gibson <david@gibson.dropbear.id.au>2007-08-23 13:56:01 +1000
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:51:52 -0700
commit1d3bb996481e116f5f2b127cbd29b83365d2cf62 (patch)
treeb612a1dbf51c920fb5a9758a6d35f9ed37eb927f /arch
parent03233b90b0977d577322a6e1ddd56d9cc570d406 (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/44x/Kconfig3
-rw-r--r--arch/powerpc/platforms/cell/Kconfig4
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 1b3e008fd14..8e66949e7c6 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -38,8 +38,7 @@ config 440EP
config 440GP
bool
-# Disabled until the new EMAC Driver is merged.
-# select IBM_NEW_EMAC_ZMII
+ select IBM_NEW_EMAC_ZMII
config 440GX
bool
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index ac8032034fb..e1e2f6a4301 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -10,6 +10,10 @@ config PPC_CELL_NATIVE
select PPC_INDIRECT_IO
select PPC_NATIVE
select MPIC
+ select IBM_NEW_EMAC_EMAC4
+ select IBM_NEW_EMAC_RGMII
+ select IBM_NEW_EMAC_ZMII #test only
+ select IBM_NEW_EMAC_TAH #test only
default n
config PPC_IBM_CELL_BLADE