I'm running into a strange problem when we ping the first Ethernet
device(FCC1) on our MPC8248 based board. Note the second Ethernet
device runs without any problem(FCC2)
The network drops roughly 4-11% of the PINGS sent to it from either a
Windows or Linux system. We've ran Ethernet compliance tests on the
boards and both Ethernets pass all tests, so electrically things seem
functional and within necessary Margins. We've just used the second
port for most of out testing.
We are running linux (2.6.26 kernel) and strange enough, running the
ping tests, we've also started to notice a few eth0 FS_ENET_ERROR 0xc
/ 0x6, though they aren't showing up very regular.
Is there something obvious between the 2848/kernel/dts/fcc
configuration I should look for? I don't think we've had this issue
in the past.
PING from Client PC
================
Ping Timeout is seen in windows
Bus traffic shows a missing reply from the MPC8248
Ping from the MPC8248
===================
Dropped Pings are captured
Bus traffic shows no missing replies. Both the request and the
reply are on the network
ethtool eth0
==================
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: external
Auto-negotiation: on
Current message level: 0x00000000 (0)
Link detected: yes
ethtool -i eth0
==================
driver: fs_enet
version: 1.0
firmware-version:
bus-info:
ethtool -d eth0
==================
Offset Values
-------- -----
000: 20 00 00 3c 14 00 00 80 14 00 00 00 d5 55 00 00
010: 00 00 01 00 00 1b 00 00 00 00 00 00 00 00 00 00
020: 01 80 01 a0 00 00 06 00 30 00 00 00 07 95 e0 00
030: 8c 00 00 00 07 b6 00 10 30 04 00 11 07 95 e1 00
040: 00 00 00 00 00 00 00 00 07 95 e0 b0 07 95 e1 08
050: be 26 a7 fd ff ff ff ff 00 00 00 00 5c 00 00 00
060: 00 00 00 00 de bb 20 e3 ff ff ff ff 00 00 00 00
070: 00 00 00 00 00 00 00 00 00 0f 00 00 00 00 00 00
080: 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
090: 05 f6 d8 20 00 aa 06 00 00 00 00 08 00 08 00 00
0a0: 07 95 e1 00 30 00 5c 00 00 00 00 00 00 00 00 00
0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0c0: 00 00 00 00 00 00 00 00 00 40 01 00 00 5e 00 01
0d0: 01 c0 00 00 00 00 00 00 05 f0 05 f0 05 f0 05 f0
0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
120: 00
/ {
model = "EP8248E";
compatible = "fsl,ep8248e";
#address-cells = <1>;
#size-cells = <1>;
aliases {
planetcore-SMC1 = &smc1;
planetcore-SCC1 = &scc1;
ethernet0 = ð0;
ethernet1 = ð1;
serial0 = &smc1;
serial1 = &scc1;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,[EMAIL PROTECTED] {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <32>;
i-cache-line-size = <32>;
d-cache-size = <16384>;
i-cache-size = <16384>;
timebase-frequency = <0>;
clock-frequency = <0>;
};
};
localbus {
compatible = "fsl,mpc8248-localbus",
"fsl,pq2-localbus",
"simple-bus";
#address-cells = <2>;
#size-cells = <1>;
reg = <0xe0010100 0x40>;
ranges = <0 0 0xf8000000 0x08000000
4 0 0xf0000000 0x08000000
2 0 0xe4000000 0x00008000
5 0 0xe4100000 0x00008000
6 0 0xe4200000 0x00008000>;
[EMAIL PROTECTED],0 {
compatible = "cfi-flash";
reg = <0 0x0 0x08000000>;
bank-width = <4>;
device-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
[EMAIL PROTECTED] {
label ="RootFS";
reg = <0 0x7c00000>;
/*read-only;*/
};
[EMAIL PROTECTED] {
label ="Linux Kernel";
reg = <0x7c00000 0x300000>;
};
[EMAIL PROTECTED] {
label ="u-boot";
reg = <0x7f00000 0x80000>;
};
[EMAIL PROTECTED] {
label ="empty";
reg = <0x7f80000 0x80000>;
};
};
[EMAIL PROTECTED],0 {
compatible = "cfi-flash";
reg = <4 0 0x08000000>;
bank-width = <4>;
device-width = <2>;
#address-cells = <1>;
#size-cells = <1>;
[EMAIL PROTECTED] {
label ="28 MB Config";
reg = <0x0 0x1c00000>;
};
[EMAIL PROTECTED] {
label ="36 MB Config";
reg = <0x1c00000 0x2400000>;
};
[EMAIL PROTECTED] {
label ="64MB MB";
reg = <0x4000000 0x4000000>;
};
};
[EMAIL PROTECTED],0 {
#address-cells = <2>;
#size-cells = <1>;
reg = <6 0 2>;
compatible = "fsl,ep8248e-dualcsr";
ranges;
};
[EMAIL PROTECTED],0 {
#address-cells = <2>;
#size-cells = <1>;
reg = <5 0 320>;
compatible = "fsl,ep8248e-dpram";
ranges;
};
[EMAIL PROTECTED],0 {
#address-cells = <2>;
#size-cells = <1>;
reg = <2 0 0x14>;
compatible = "fsl,ep8248e-bcsr";
ranges;
mdio {
device_type = "mdio";
compatible = "fsl,ep8248e-mdio-bitbang";
#address-cells = <1>;
#size-cells = <0>;
reg = <0 8 1>;
PHY0: [EMAIL PROTECTED] {
interrupt-parent = <&PIC>;
reg = <0>;
device_type = "ethernet-phy";
};
PHY1: [EMAIL PROTECTED] {
interrupt-parent = <&PIC>;
reg = <1>;
device_type = "ethernet-phy";
};
};
};
timer1 {
name = "timer1";
compatible = "vtm,timer1";
interrupts = <0xc 8>;
interrupt-parent = <&PIC>;
};
timer2 {
name = "timer2";
compatible = "vtm,timer2";
interrupts = <0xd 8>;
interrupt-parent = <&PIC>;
};
timer3 {
name = "timer3";
compatible = "vtm,timer3";
interrupts = <0xe 8>;
interrupt-parent = <&PIC>;
};
timer4 {
name = "timer4";
compatible = "vtm,timer4";
interrupts = <0xf 8>;
interrupt-parent = <&PIC>;
};
irq4 {
name = "irq4";
compatible = "vtm,arinc";
interrupts = <0x16 8>;
interrupt-parent = <&PIC>;
};
irq5 {
name = "irq5";
compatible = "vtm,printheadcomplete";
interrupts = <0x17 8>;
interrupt-parent = <&PIC>;
};
irq6 {
name = "irq6";
compatible = "vtm,statuschange";
interrupts = <0x18 8>;
interrupt-parent = <&PIC>;
};
[EMAIL PROTECTED] {
compatible = "vtm,i2c-thermister";
reg = <0x34 0 0>;
interrupts = <>;
interrupt-parent = <>;
};
[EMAIL PROTECTED] {
compatible = "vtm,i2c-led";
reg = <0x41 0 0>;
interrupts = <>;
interrupt-parent = <>;
};
[EMAIL PROTECTED] {
compatible = "vtm,i2c-eeprom";
reg = <0x54 0 0>;
interrupts = <>;
interrupt-parent = <>;
};
};
memory {
device_type = "memory";
reg = <0 0>;
};
[EMAIL PROTECTED] {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,mpc8248-immr", "fsl,pq2-soc", "simple-bus";
ranges = <0x00000000 0xe0000000 0x00053000>;
// Temporary until code stops depending on it.
device_type = "soc";
// Temporary -- will go away once kernel uses ranges for
get_immrbase().
reg = <0xe0000000 0x00053000>;
[EMAIL PROTECTED] {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
compatible = "fsl,mpc8248-cpm", "fsl,cpm2",
"simple-bus";
reg = <0x119c0 0x30>;
ranges;
muram {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0 0x10000>;
[EMAIL PROTECTED] {
compatible = "fsl,cpm-muram-data";
reg = <0x80 0x1f80 0x9800 0x800>;
};
};
[EMAIL PROTECTED] {
compatible = "fsl,mpc8248-brg",
"fsl,cpm2-brg",
"fsl,cpm-brg";
reg = <0x119f0 0x10 0x115f0 0x10>;
};
/* Monitor port/SMC1 */
smc1: [EMAIL PROTECTED] {
device_type = "serial";
compatible = "fsl,mpc8248-smc-uart",
"fsl,cpm2-smc-uart";
reg = <0x11a80 0x20 0x87fc 2>;
interrupts = <4 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <7>;
fsl,cpm-command = <0x1d000000>;
};
/* "Serial" port/SCC1 */
scc1: [EMAIL PROTECTED] {
device_type = "serial";
compatible = "fsl,mpc8248-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a00 0x20 0x8000 0x100>;
interrupts = <0x40 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <1>;
fsl,cpm-command = <0x00800000>;
};
/* "Serial" port/SCC4 */
scc1: [EMAIL PROTECTED] {
device_type = "serial";
compatible = "fsl,mpc8248-scc-uart",
"fsl,cpm2-scc-uart";
reg = <0x11a60 0x20 0x8300 0x100>;
interrupts = <0x2B 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <4>;
fsl,cpm-command = <0x0CE00000>;
};
eth0: [EMAIL PROTECTED] {
device_type = "network";
compatible = "fsl,mpc8248-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <0x11300 0x20 0x8400 0x100 0x11390 1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <0x20 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY0>;
linux,network-index = <0>;
fsl,cpm-command = <0x12000300>;
};
eth1: [EMAIL PROTECTED] {
device_type = "network";
compatible = "fsl,mpc8248-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <0x11320 0x20 0x8500 0x100 0x113b0 1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <0x21 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY1>;
linux,network-index = <1>;
fsl,cpm-command = <0x16200300>;
};
[EMAIL PROTECTED] {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,mpc8248-usb",
"fsl,cpm2-usb";
reg = <0x11b60 0x18 0x8b00 0x100>;
interrupt-parent = <&PIC>;
interrupts = <0xb 8>;
fsl,cpm-command = <0x2e600000>;
};
[EMAIL PROTECTED] {
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,mpc8248-i2c",
"fsl,cpm2-i2c";
reg = <0x11860 0x20 0x8afc 0x2>;
interrupts = <1 8>;
interrupt-parent = <&PIC>;
fsl,cpm-command = <0x29600000>;
};
};
PIC: [EMAIL PROTECTED] {
#interrupt-cells = <2>;
interrupt-controller;
reg = <0x10c00 0x80>;
compatible = "fsl,mpc8248-pic", "fsl,pq2-pic";
};
};
chosen {
linux,stdout-path = "/soc/cpm/[EMAIL PROTECTED]";
};
};
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