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authorDale Farnsworth <dale@farnsworth.org>2008-04-08 08:11:27 +1000
committerPaul Mackerras <paulus@samba.org>2008-04-15 21:21:24 +1000
commita0916bd64a0e6636f0161480e04057c89e90c5da (patch)
treee69f5a97dfe6de72a4d88b69508fb3048ff1107d /arch
parent1791f91bc794b7efc90719268146f582b9f29ead (diff)
downloadop-kernel-dev-a0916bd64a0e6636f0161480e04057c89e90c5da.zip
op-kernel-dev-a0916bd64a0e6636f0161480e04057c89e90c5da.tar.gz
[POWERPC] mv643xx_eth: Prepare to support multiple silicon blocks
The mv643xx_eth driver is being modified to support multiple instances of the ethernet silicon block on the same platform. Each block contains a single register bank containing the registers for up to three ports interleaved within that bank. This patch updates the PowerPC OF to platform_device glue code to support multiple silicon blocks, each with up to three ethernet ports. The main difference is that we now allow multiple mv64x60_shared platform_devices to be registered and we provide each port platform_device with a pointer to its associated shared platform_device. The pointer will not be used until the mv643xx_eth driver changes are committed. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Acked-by: Mark Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/boot/dts/prpmc2800.dts13
-rw-r--r--arch/powerpc/sysdev/mv64x60_dev.c52
2 files changed, 37 insertions, 28 deletions
diff --git a/arch/powerpc/boot/dts/prpmc2800.dts b/arch/powerpc/boot/dts/prpmc2800.dts
index 88a1a89..1ee6ff4 100644
--- a/arch/powerpc/boot/dts/prpmc2800.dts
+++ b/arch/powerpc/boot/dts/prpmc2800.dts
@@ -91,21 +91,24 @@
};
};
- ethernet@2000 {
+ ethernet-group@2000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "marvell,mv64360-eth-group";
reg = <0x2000 0x2000>;
- eth0 {
+ ethernet@0 {
device_type = "network";
compatible = "marvell,mv64360-eth";
- block-index = <0>;
+ reg = <0>;
interrupts = <32>;
interrupt-parent = <&PIC>;
phy = <&PHY0>;
local-mac-address = [ 00 00 00 00 00 00 ];
};
- eth1 {
+ ethernet@1 {
device_type = "network";
compatible = "marvell,mv64360-eth";
- block-index = <1>;
+ reg = <1>;
interrupts = <33>;
interrupt-parent = <&PIC>;
phy = <&PHY1>;
diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index 90f2c14..047b310 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -206,30 +206,24 @@ error:
/*
* Create mv64x60_eth platform devices
*/
-static int __init eth_register_shared_pdev(struct device_node *np)
+static struct platform_device * __init mv64x60_eth_register_shared_pdev(
+ struct device_node *np, int id)
{
struct platform_device *pdev;
struct resource r[1];
int err;
- np = of_get_parent(np);
- if (!np)
- return -ENODEV;
-
err = of_address_to_resource(np, 0, &r[0]);
- of_node_put(np);
if (err)
- return err;
+ return ERR_PTR(err);
- pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, 0,
+ pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, id,
r, 1);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- return 0;
+ return pdev;
}
-static int __init mv64x60_eth_device_setup(struct device_node *np, int id)
+static int __init mv64x60_eth_device_setup(struct device_node *np, int id,
+ struct platform_device *shared_pdev)
{
struct resource r[1];
struct mv643xx_eth_platform_data pdata;
@@ -240,16 +234,12 @@ static int __init mv64x60_eth_device_setup(struct device_node *np, int id)
const phandle *ph;
int err;
- /* only register the shared platform device the first time through */
- if (id == 0 && (err = eth_register_shared_pdev(np)))
- return err;
-
memset(r, 0, sizeof(r));
of_irq_to_resource(np, 0, &r[0]);
memset(&pdata, 0, sizeof(pdata));
- prop = of_get_property(np, "block-index", NULL);
+ prop = of_get_property(np, "reg", NULL);
if (!prop)
return -ENODEV;
pdata.port_number = *prop;
@@ -302,7 +292,7 @@ static int __init mv64x60_eth_device_setup(struct device_node *np, int id)
of_node_put(phy);
- pdev = platform_device_alloc(MV643XX_ETH_NAME, pdata.port_number);
+ pdev = platform_device_alloc(MV643XX_ETH_NAME, id);
if (!pdev)
return -ENOMEM;
@@ -437,8 +427,9 @@ error:
static int __init mv64x60_device_setup(void)
{
- struct device_node *np = NULL;
- int id;
+ struct device_node *np, *np2;
+ struct platform_device *pdev;
+ int id, id2;
int err;
id = 0;
@@ -447,9 +438,24 @@ static int __init mv64x60_device_setup(void)
goto error;
id = 0;
- for_each_compatible_node(np, "network", "marvell,mv64360-eth")
- if ((err = mv64x60_eth_device_setup(np, id++)))
+ id2 = 0;
+ for_each_compatible_node(np, NULL, "marvell,mv64360-eth-group") {
+ pdev = mv64x60_eth_register_shared_pdev(np, id++);
+ if (IS_ERR(pdev)) {
+ err = PTR_ERR(pdev);
goto error;
+ }
+ for_each_child_of_node(np, np2) {
+ if (!of_device_is_compatible(np2,
+ "marvell,mv64360-eth"))
+ continue;
+ err = mv64x60_eth_device_setup(np2, id2++, pdev);
+ if (err) {
+ of_node_put(np2);
+ goto error;
+ }
+ }
+ }
id = 0;
for_each_compatible_node(np, "i2c", "marvell,mv64360-i2c")
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