Hi,
I'm trying to get the new_emac driver (linux 2.6.25-rc8) running on my
405EP board with a KSZ8721BT Micrel/Kendin PHY.
I've already found 2 problems/missing features:
1) 100 retries in __emac_mdio_read for the read to complete are
slightly too less. 101 seem to be enough. But we could add a bit more,
because there is no negative effect for faster chips.
2) On the 405EP only the MDIO pin of the emac0 is pinned out, so both
phys have to be accessed through this one. This affectes the mdio
read/write functions.
I've already hacked around this problems, but ethernet is still not working.
After bringing up the device dmesg is flooded with this section.
emac/plb/opb/[EMAIL PROTECTED]: link timer
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,01)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 786d
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,01)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 786d
Any ideas where I should start looking?
Best Regards
Markus
A ping doesn't work
==============
# ifconfig eth0 1.1.1.1
eth0: link is up, 100 FDX, pause enabled
# ping 1.1.1.1 -c1
PING 1.1.1.1 (1.1.1.1): 56 data bytes
--- 1.1.1.1 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss
No data gets transmitted
==================
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:50:C2:1E:AF:FE
inet addr:1.1.1.1 Bcast:1.255.255.255 Mask:255.0.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:23
And no interrupts triggered
===================
# cat /proc/interrupts
CPU0
16: 737 UIC Level serial
18: 0 UIC Level MAL TX EOB
19: 0 UIC Level MAL RX EOB
20: 0 UIC Level MAL SERR
21: 0 UIC Level MAL TX DE
22: 0 UIC Level MAL RX DE
BAD: 0
dmesg section after boot, debug level of emac driver is 3
=========================================
ef600400.serial: ttyS1 at MMIO 0xef600400 (irq = 17) is a 16550A
PPC 4xx OCP EMAC driver, version 3.54
mal/plb/mcmal: probe
mal/plb/mcmal: reset
mal/plb/mcmal: enable_irq
MAL v1 /plb/mcmal, 4 TX channels, 4 RX channels
emac/plb/opb/[EMAIL PROTECTED]: features : 0x00000000 / 0x00000000
emac/plb/opb/[EMAIL PROTECTED]: tx_fifo_size : 2048 (2048 gige)
emac/plb/opb/[EMAIL PROTECTED]: rx_fifo_size : 4096 (4096 gige)
emac/plb/opb/[EMAIL PROTECTED]: max_mtu : 1500
emac/plb/opb/[EMAIL PROTECTED]: OPB freq : 66000000
mal/plb/mcmal: reg(80000000, 80000000)
emac/plb/opb/[EMAIL PROTECTED]: tx_desc ff100000
emac/plb/opb/[EMAIL PROTECTED]: rx_desc ff100800
emac/plb/opb/[EMAIL PROTECTED]: PHY maps 00000000 00000000
emac/plb/opb/[EMAIL PROTECTED]: configure
emac/plb/opb/[EMAIL PROTECTED]: reset
emac/plb/opb/[EMAIL PROTECTED]: rx_disable
emac/plb/opb/[EMAIL PROTECTED]: tx_disable
emac/plb/opb/[EMAIL PROTECTED]: link = 1 duplex = 1, pause = 0, asym_pause = 0
emac/plb/opb/[EMAIL PROTECTED]: __emac_calc_base_mr1
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(00,00,a100)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,02)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 0022
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,03)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 1619
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,01)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 7849
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(00,00,0000)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,04)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 01e1
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(00,04,0de1)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(00,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 0000
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(00,00,1200)
emac/plb/opb/[EMAIL PROTECTED]: stats
eth0: EMAC-0 /plb/opb/[EMAIL PROTECTED], MAC 00:50:c2:1e:af:fe
eth0: found Generic MII PHY (0x00)
emac/plb/opb/[EMAIL PROTECTED]: features : 0x00000000 / 0x00000000
emac/plb/opb/[EMAIL PROTECTED]: tx_fifo_size : 2048 (2048 gige)
emac/plb/opb/[EMAIL PROTECTED]: rx_fifo_size : 4096 (4096 gige)
emac/plb/opb/[EMAIL PROTECTED]: max_mtu : 1500
emac/plb/opb/[EMAIL PROTECTED]: OPB freq : 66000000
mal/plb/mcmal: reg(20000000, 40000000)
emac/plb/opb/[EMAIL PROTECTED]: tx_desc ff100400
emac/plb/opb/[EMAIL PROTECTED]: rx_desc ff100c00
emac/plb/opb/[EMAIL PROTECTED]: PHY maps 00000020 00000001
emac/plb/opb/[EMAIL PROTECTED]: configure
emac/plb/opb/[EMAIL PROTECTED]: reset
emac/plb/opb/[EMAIL PROTECTED]: rx_disable
emac/plb/opb/[EMAIL PROTECTED]: tx_disable
emac/plb/opb/[EMAIL PROTECTED]: link = 1 duplex = 1, pause = 0, asym_pause = 0
emac/plb/opb/[EMAIL PROTECTED]: __emac_calc_base_mr1
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(01,00,a100)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,02)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 0022
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,03)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 1619
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,01)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 7849
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 3100
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(01,00,0000)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,04)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 01e1
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(01,04,0de1)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read(01,00)
emac/plb/opb/[EMAIL PROTECTED]: mdio_read -> 0000
emac/plb/opb/[EMAIL PROTECTED]: mdio_write(01,00,1200)
emac/plb/opb/[EMAIL PROTECTED]: stats
eth1: EMAC-1 /plb/opb/[EMAIL PROTECTED], MAC 00:50:c2:1e:af:fd
eth1: found Generic MII PHY (0x01)
TCP cubic registered
Mal and emac sections of my device tree
==============================
MAL: mcmal {
compatible = "ibm,mcmal-405ep", "ibm,mcmal";
dcr-reg = <180 62>;
num-tx-chans = <4>;
num-rx-chans = <4>;
interrupt-parent = <&UIC0>;
interrupts = <
a 4 /* SERR */
b 4 /* TXEOB */
c 4 /* RXEOB */
d 4 /* TXDE */
e 4 /* RXDE */>;
};
POB0: opb {
compatible = "ibm,opb-405ep", "ibm,opb";
#address-cells = <1>;
#size-cells = <1>;
ranges = <ef600000 ef600000 a00000>;
dcr-reg = <0a0 5>;
clock-frequency = <3EF1480>;
EMAC0: [EMAIL PROTECTED] {
linux,network-index = <0>;
device_type = "network";
compatible = "ibm,emac-405ep", "ibm,emac";
interrupt-parent = <&UIC0>;
interrupts = <
f 4 /* Ethernet */
9 4 /* Ethernet Wake Up */>;
local-mac-address = [0050c21eaffe]; /* Filled
in by zImage */
reg = <ef600800 70>;
mal-device = <&MAL>;
mal-tx-channel = <0>;
mal-rx-channel = <0>;
cell-index = <0>;
max-frame-size = <5dc>;
rx-fifo-size = <1000>;
tx-fifo-size = <800>;
phy-mode = "mii";
phy-map = <00000000>;
};
EMAC1: [EMAIL PROTECTED] {
linux,network-index = <1>;
device_type = "network";
compatible = "ibm,emac-405ep", "ibm,emac";
interrupt-parent = <&UIC0>;
interrupts = <
11 4 /* Ethernet */
9 4 /* Ethernet Wake Up */>;
local-mac-address = [0050c21eaffd]; /* Filled
in by zImage */
reg = <ef600900 70>;
mal-device = <&MAL>;
mal-tx-channel = <2>;
mal-rx-channel = <1>;
cell-index = <1>;
max-frame-size = <5dc>;
rx-fifo-size = <1000>;
tx-fifo-size = <800>;
phy-mode = "mii";
phy-map = <00000020>;
};
Kconfig section of emac
=================
CONFIG_PHYLIB=y
#
# MII PHY device drivers
#
# CONFIG_MARVELL_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_REALTEK_PHY is not set
# CONFIG_FIXED_PHY is not set
# CONFIG_MDIO_BITBANG is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_ENC28J60 is not set
CONFIG_IBM_NEW_EMAC=y
CONFIG_IBM_NEW_EMAC_RXB=128
CONFIG_IBM_NEW_EMAC_TXB=64
CONFIG_IBM_NEW_EMAC_POLL_WEIGHT=32
CONFIG_IBM_NEW_EMAC_RX_COPY_THRESHOLD=256
CONFIG_IBM_NEW_EMAC_RX_SKB_HEADROOM=0
CONFIG_IBM_NEW_EMAC_DEBUG=y
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
