Hi,
I'm trying to bring the primary Ethernet interface up on my 8272-based
board running 2.6.27.
Previously, I had this same hardware working with 2.6.14 using the
following driver:
linux-2.6.14/arch/ppc/8260_io/fcc_enet.c
This doesn't exist anymore in 2.6.27. From reading the code comments,
I think the new driver I should be using is:
linux-2.6.27/drivers/net/fs_enet/fs_enet-main.c
The PHY is an Intel LXT972. I have selected the closest-matching
Kernel config option 'LXT970'.
The primary ethernet uses FCC2.
Here are the relevant boot messages:
OF: ** translation for device /s...@f0000000 **
OF: bus is default (na=1, ns=1) on /
OF: translating address: f0000000
OF: reached root node
OF: ** translation for device /s...@f0000000/c...@119c0/mu...@0/d...@0 **
OF: bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0/mu...@0
OF: translating address: 00000000
OF: parent bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0
OF: walking ranges...
OF: default map, cp=0, s=10000, da=0
OF: parent translation for: 00000000
OF: with offset: 0
OF: one level translation: 00000000
OF: parent bus is default (na=1, ns=1) on /s...@f0000000
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 0
OF: one level translation: 00000000
OF: parent bus is default (na=1, ns=1) on /
OF: walking ranges...
OF: default map, cp=0, s=53000, da=0
OF: parent translation for: f0000000
OF: with offset: 0
OF: one level translation: f0000000
OF: reached root node
OF: ** translation for device /s...@f0000000/c...@119c0/mu...@0/d...@0 **
OF: bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0/mu...@0
OF: translating address: 00000000
OF: parent bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0
OF: walking ranges...
OF: default map, cp=0, s=10000, da=0
OF: parent translation for: 00000000
OF: with offset: 0
OF: one level translation: 00000000
OF: parent bus is default (na=1, ns=1) on /s...@f0000000
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 0
OF: one level translation: 00000000
OF: parent bus is default (na=1, ns=1) on /
OF: walking ranges...
OF: default map, cp=0, s=53000, da=0
OF: parent translation for: f0000000
OF: with offset: 0
OF: one level translation: f0000000
OF: reached root node
OF: ** translation for device /s...@f0000000/c...@119c0/mu...@0/d...@0 **
OF: bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0/mu...@0
OF: translating address: 00009800
OF: parent bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0
OF: walking ranges...
OF: default map, cp=0, s=10000, da=9800
OF: parent translation for: 00000000
OF: with offset: 9800
OF: one level translation: 00009800
OF: parent bus is default (na=1, ns=1) on /s...@f0000000
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 9800
OF: one level translation: 00009800
OF: parent bus is default (na=1, ns=1) on /
OF: walking ranges...
OF: default map, cp=0, s=53000, da=9800
OF: parent translation for: f0000000
OF: with offset: 9800
OF: one level translation: f0009800
OF: reached root node
hpxred_setup_arch(), finished
arch: exit
....
Kernel command line: root=/dev/nfs rw
nfsroot=192.168.1.8:/tftpboot/192.168.1.75/ro
otfs ip=192.168.1.75:192.168.1.8::255.255.255.0:hpx800:eth2:off
mtdparts=flash:256K
(uboot),128K(env1),128K(env2),1536K(linux1),6144K(root1),4096K(app1),1536K(linux2),
6144K(root2),4096K(app2),1536K(usr),-(usb) panic=1 console=ttyCPM0
mem=32M usbid=1
hpxred_pic_init()
irq: Allocated host of type 2 @0xc03163a0
hpxred_pic_init(), finished
PID hash table entries: 128 (order: 7, 512 bytes)
time_init: decrementer frequency = 16.500000 MHz
time_init: processor frequency = 330.000000 MHz
clocksource: timebase mult[f26c9b2] shift[22] registered
clockevent: decrementer mult[439] shift[16] cpu[0]
Console: colour dummy device 80x25
cpm_uart_init_port()
OF: ** translation for device /s...@f0000000/c...@119c0/ser...@11a00 **
OF: bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0
OF: translating address: 00011a00
OF: parent bus is default (na=1, ns=1) on /s...@f0000000
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 11a00
OF: one level translation: 00011a00
OF: parent bus is default (na=1, ns=1) on /
OF: walking ranges...
OF: default map, cp=0, s=53000, da=11a00
OF: parent translation for: f0000000
OF: with offset: 11a00
OF: one level translation: f0011a00
OF: reached root node
OF: ** translation for device /s...@f0000000/c...@119c0/ser...@11a00 **
OF: bus is default (na=1, ns=1) on /s...@f0000000/c...@119c0
OF: translating address: 00008000
OF: parent bus is default (na=1, ns=1) on /s...@f0000000
OF: no ranges, 1:1 translation
OF: parent translation for: 00000000
OF: with offset: 8000
OF: one level translation: 00008000
OF: parent bus is default (na=1, ns=1) on /
OF: walking ranges...
OF: default map, cp=0, s=53000, da=8000
OF: parent translation for: f0000000
OF: with offset: 8000
OF: one level translation: f0008000
OF: reached root node
of_irq_map_one: dev=/s...@f0000000/c...@119c0/ser...@11a00, index=0
intsize=2 intlen=2
of_irq_map_raw:
par=/s...@f0000000/interrupt-control...@10c00,intspec=[0x00000028 0x
00000008...],ointsize=2
of_irq_map_raw: ipar=/s...@f0000000/interrupt-control...@10c00, size=2
-> addrsize=1
-> got it !
irq: irq_create_mapping(0xc03163a0, 0x28)
irq: -> using host @c03163a0
irq: -> obtained virq 40
cpm2_pic_host_map(40, 0x28)
of_get_gpio exited with status -2
of_get_gpio exited with status -2
of_get_gpio exited with status -2
of_get_gpio exited with status -2
of_get_gpio exited with status -2
of_get_gpio exited with status -2
cpm_uart_request_port()
CPM uart[þDentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 29564k/32768k available (2636k kernel code, 3204k reserved,
104k data, 129k
bss, 120k init)
...
kobject: 'fs_enet' (c1810900): kobject_add_internal: parent: 'module',
set: 'module'
....
bus: 'mdio_bus': add driver LXT970
kobject: 'LXT970' (c1817900): kobject_add_internal: parent: 'drivers',
set: 'driver
s'
LXT970: Registered new driver
bus: 'mdio_bus': add driver LXT971
kobject: 'LXT971' (c1817960): kobject_add_internal: parent: 'drivers',
set: 'driver
s'
LXT971: Registered new driver
Registering platform device 'Fixed MDIO bus.0'. Parent at platform
device: 'Fixed MDIO bus.0': device_add
kobject: 'Fixed MDIO bus.0' (c1946470): kobject_add_internal: parent:
'platform', s
et: 'devices'
bus: 'platform': add device Fixed MDIO bus.0
Fixed MDIO Bus: probed
bus: 'of_platform': add driver mdio-gpio
kobject: 'mdio-gpio' (c18179c0): kobject_add_internal: parent:
'drivers', set: 'dri
vers'
....
bus: 'of_platform': add driver fs_enet
kobject: 'fs_enet' (c1817a80): kobject_add_internal: parent:
'drivers', set: 'drive
rs'
bus: 'of_platform': add driver fsl-bb-mdio
kobject: 'fsl-bb-mdio' (c1817ae0): kobject_add_internal: parent:
'drivers', set: 'd
rivers'
....
IP-Config: Device `eth2' not found.
driver_probe_done: probe_count = 0
The fs_enet probe() function doesn't seem to get called (I had put a
panic() in it). Should it?
I also tried searching for 'eth0' and 'eth1' but got the same result.
'eth2' was what I used with 2.6.14.
Here's the relevant parts of the Device Tree:
s...@f0000000 {
#address-cells = <1>;
#size-cells = <1>;
device_type = "soc";
compatible = "fsl,mpc8272", "fsl,pq2-soc";
ranges = <0x0 0xf0000000 0x53000>;
// Temporary -- will go away once kernel uses ranges for get_immrbase().
reg = <0xf0000000 0x53000>;
c...@119c0 {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
compatible = "fsl,mpc8272-cpm", "fsl,cpm2";
reg = <0x119c0 0x30>;
ranges;
mu...@0 {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x0 0x10000>;
d...@0 {
compatible = "fsl,cpm-muram-data";
reg = <0x0 0x2000 0x9800 0x800>;
};
};
b...@119f0 {
compatible = "fsl,mpc8272-brg",
"fsl,cpm2-brg";
reg = <0x119f0 0x10 0x115f0 0x10>;
clock-frequency = <0>;
};
ser...@11a00 {
device_type = "serial";
compatible = "fsl,mpc8272-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a00 0x20 0x8000 0x100>;
interrupts = <40 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <0>;
fsl,cpm-command = <0x800000>;
};
ether...@11320 {
device_type = "network";
compatible = "fsl,mpc8272-fcc-enet",
"fsl,cpm2-fcc-enet";
// FCC2-
reg = <0x11320 0x20 0x8500 0x100 0x113b0 0x1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <33 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY0>;
linux,network-index = <0>;
fsl,cpm-command = <0x12000300>;
};
m...@10d40 {
device_type = "mdio";
compatible = "fsl,mpc8272ads-mdio-bitbang",
"fsl,mpc8272-mdio-bitbang",
"fsl,cpm2-mdio-bitbang";
reg = <0x10d40 0x14>;
#address-cells = <1>;
#size-cells = <0>;
fsl,mdio-pin = <5>;
fsl,mdc-pin = <19>;
PHY0: ethernet-...@0 {
interrupt-parenn = <&PIC>;
interrupts = <23 8>;
reg = <0x0>;
device_type = "ethernet-phy";
};
};
};
PIC: interrupt-control...@10c00 {
#interrupt-cells = <2>;
interrupt-controller;
reg = <0x10c00 0x80>;
compatible = "fsl,mpc8272-pic", "fsl,cpm2-pic";
};
};
Cheers,
Daniel
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