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authorFlorian Fainelli <florian@openwrt.org>2013-03-22 03:39:28 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-22 10:25:15 -0400
commitc3a07134e6aa5b93a37f72ffa3d11fadf72bf757 (patch)
treee61bf96df027d188c5b07722911121ec1186e701 /arch/powerpc/platforms/chrp
parent2ec985213864cb64c45dc0284d7316142eefb5d4 (diff)
mv643xx_eth: convert to use the Marvell Orion MDIO driver
This patch converts the Marvell MV643XX ethernet driver to use the Marvell Orion MDIO driver. As a result, PowerPC and ARM platforms registering the Marvell MV643XX ethernet driver are also updated to register a Marvell Orion MDIO driver. This driver voluntarily overlaps with the Marvell Ethernet shared registers because it will use a subset of this shared register (shared_base + 0x4 to shared_base + 0x84). The Ethernet driver is also updated to look up for a PHY device using the Orion MDIO bus driver. For ARM and PowerPC we register a single instance of the "mvmdio" driver in the system like it used to be done with the use of the "shared_smi" platform_data cookie on ARM. Note that it is safe to register the mvmdio driver only for the "ge00" instance of the driver because this "ge00" interface is guaranteed to always be explicitely registered by consumers of arch/arm/plat-orion/common.c and other instances (ge01, ge10 and ge11) were all pointing their shared_smi to ge00. For PowerPC the in-tree Device Tree Source files mention only one MV643XX ethernet MAC instance so the MDIO bus driver is registered only when id == 0. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc/platforms/chrp')
-rw-r--r--arch/powerpc/platforms/chrp/pegasos_eth.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/chrp/pegasos_eth.c b/arch/powerpc/platforms/chrp/pegasos_eth.c
index 039fc8e82199..2b4dc6abde6c 100644
--- a/arch/powerpc/platforms/chrp/pegasos_eth.c
+++ b/arch/powerpc/platforms/chrp/pegasos_eth.c
@@ -47,6 +47,25 @@ static struct platform_device mv643xx_eth_shared_device = {
.resource = mv643xx_eth_shared_resources,
};
+/*
+ * The orion mdio driver only covers shared + 0x4 up to shared + 0x84 - 1
+ */
+static struct resource mv643xx_eth_mvmdio_resources[] = {
+ [0] = {
+ .name = "ethernet mdio base",
+ .start = 0xf1000000 + MV643XX_ETH_SHARED_REGS + 0x4,
+ .end = 0xf1000000 + MV643XX_ETH_SHARED_REGS + 0x83,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device mv643xx_eth_mvmdio_device = {
+ .name = "orion-mdio",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(mv643xx_eth_mvmdio_resources),
+ .resource = mv643xx_eth_shared_resources,
+};
+
static struct resource mv643xx_eth_port1_resources[] = {
[0] = {
.name = "eth port1 irq",
@@ -82,6 +101,7 @@ static struct platform_device eth_port1_device = {
static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
&mv643xx_eth_shared_device,
+ &mv643xx_eth_mvmdio_device,
&eth_port1_device,
};