* [U-Boot] How do I use AM335x eth1 rather than eth0 ?
@ 2013-04-12 10:56 Mark Jackson
2013-04-12 16:05 ` Tom Rini
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Mark Jackson @ 2013-04-12 10:56 UTC (permalink / raw)
To: u-boot
We have a dual Ethernet board (based on the BeagelBone) but with both Ethernet ports connected.
I'm wanting to use eth1 (rather than eth0), so in my board.c file, I changed:-
static struct cpsw_slave_data cpsw_slaves[] = {
{
.slave_reg_ofs = 0x208,
.sliver_reg_ofs = 0xd80,
.phy_id = 0,
},
{
.slave_reg_ofs = 0x308,
.sliver_reg_ofs = 0xdc0,
.phy_id = 1,
},
};
... to ...
static struct cpsw_slave_data cpsw_slaves[] = {
{
.slave_reg_ofs = 0x308,
.sliver_reg_ofs = 0xdc0,
.phy_id = 1,
},
{
.slave_reg_ofs = 0x208,
.sliver_reg_ofs = 0xd80,
.phy_id = 0,
},
};
... assuming that eth0 would now be ignored (as only 1 slave is configured).
But (eg) dhcp still only responds on eth0 !?!
What else do I have to change ?
Cheers
Mark J.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] How do I use AM335x eth1 rather than eth0 ?
2013-04-12 10:56 [U-Boot] How do I use AM335x eth1 rather than eth0 ? Mark Jackson
@ 2013-04-12 16:05 ` Tom Rini
2013-04-12 19:20 ` Mark Jackson
2013-04-13 17:45 ` [U-Boot] How do I use AM335x eth1 rather than eth0 ? [SOLVED] Mark Jackson
2013-04-13 17:46 ` Mark Jackson
2 siblings, 1 reply; 6+ messages in thread
From: Tom Rini @ 2013-04-12 16:05 UTC (permalink / raw)
To: u-boot
On Fri, Apr 12, 2013 at 11:56:57AM +0100, Mark Jackson wrote:
> We have a dual Ethernet board (based on the BeagelBone) but with both Ethernet ports connected.
>
> I'm wanting to use eth1 (rather than eth0), so in my board.c file, I changed:-
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> };
>
> ... to ...
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> };
>
> ... assuming that eth0 would now be ignored (as only 1 slave is configured).
>
> But (eg) dhcp still only responds on eth0 !?!
>
> What else do I have to change ?
Good question, do you have both ports working in Linux yet? The EVM-SK
design supports two interfaces and I know the cpsw driver in the kernel
required some changes to support two. I strongly suspect similar
changes would be required in the U-Boot driver (I don't have any
specific links other than look at the vendor kernel tree).
--
Tom
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] How do I use AM335x eth1 rather than eth0 ?
2013-04-12 16:05 ` Tom Rini
@ 2013-04-12 19:20 ` Mark Jackson
0 siblings, 0 replies; 6+ messages in thread
From: Mark Jackson @ 2013-04-12 19:20 UTC (permalink / raw)
To: u-boot
On 12/04/13 17:05, Tom Rini wrote:
> On Fri, Apr 12, 2013 at 11:56:57AM +0100, Mark Jackson wrote:
>
>> We have a dual Ethernet board (based on the BeagelBone) but with both Ethernet ports connected.
>>
>> I'm wanting to use eth1 (rather than eth0), so in my board.c file, I changed:-
<snip>
>> ... assuming that eth0 would now be ignored (as only 1 slave is configured).
>>
>> But (eg) dhcp still only responds on eth0 !?!
>>
>> What else do I have to change ?
>
> Good question, do you have both ports working in Linux yet? The EVM-SK
> design supports two interfaces and I know the cpsw driver in the kernel
> required some changes to support two. I strongly suspect similar
> changes would be required in the U-Boot driver (I don't have any
> specific links other than look at the vendor kernel tree).
Well, I've realised I needed to change CONFIG_PHY_ADDR in my board
config file.
So the link up/down portion now works to PHY#2, but I'm still unable to
ping anything from our board.
I'm guessing there's some hard-coded assumptions in the cpsw.c driver.
I've taken quick look at the Ethernet section of the TRM, but that's
*waaaay* over my head !?!
I've so far been unable to get Linux to see the 2nd port, and there is
no "vendor kernel tree" ... I'm the vendor :-)
Mark J.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] How do I use AM335x eth1 rather than eth0 ? [SOLVED]
2013-04-12 10:56 [U-Boot] How do I use AM335x eth1 rather than eth0 ? Mark Jackson
2013-04-12 16:05 ` Tom Rini
@ 2013-04-13 17:45 ` Mark Jackson
2013-04-13 17:46 ` Mark Jackson
2 siblings, 0 replies; 6+ messages in thread
From: Mark Jackson @ 2013-04-13 17:45 UTC (permalink / raw)
To: u-boot
On 12/04/13 11:56, Mark Jackson wrote:
> We have a dual Ethernet board (based on the BeagelBone) but with both Ethernet ports connected.
>
> I'm wanting to use eth1 (rather than eth0), so in my board.c file, I changed:-
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> };
>
> ... to ...
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> };
>
> ... assuming that eth0 would now be ignored (as only 1 slave is configured).
>
> But (eg) dhcp still only responds on eth0 !?!
>
> What else do I have to change ?
After much experimenting, I've managed to get it to work.
Based on the original board.c file copied from the TI starter kit, I
simply changed the slaves count to 2, and set CONFIG_PHY_ADDR to 1 in my
board config file.
Simple.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] How do I use AM335x eth1 rather than eth0 ? [SOLVED]
2013-04-12 10:56 [U-Boot] How do I use AM335x eth1 rather than eth0 ? Mark Jackson
2013-04-12 16:05 ` Tom Rini
2013-04-13 17:45 ` [U-Boot] How do I use AM335x eth1 rather than eth0 ? [SOLVED] Mark Jackson
@ 2013-04-13 17:46 ` Mark Jackson
2015-03-17 9:12 ` tejbir
2 siblings, 1 reply; 6+ messages in thread
From: Mark Jackson @ 2013-04-13 17:46 UTC (permalink / raw)
To: u-boot
On 12/04/13 11:56, Mark Jackson wrote:
> We have a dual Ethernet board (based on the BeagelBone) but with both Ethernet ports connected.
>
> I'm wanting to use eth1 (rather than eth0), so in my board.c file, I changed:-
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> };
>
> ... to ...
>
> static struct cpsw_slave_data cpsw_slaves[] = {
> {
> .slave_reg_ofs = 0x308,
> .sliver_reg_ofs = 0xdc0,
> .phy_id = 1,
> },
> {
> .slave_reg_ofs = 0x208,
> .sliver_reg_ofs = 0xd80,
> .phy_id = 0,
> },
> };
>
> ... assuming that eth0 would now be ignored (as only 1 slave is configured).
>
> But (eg) dhcp still only responds on eth0 !?!
>
> What else do I have to change ?
After much experimenting, I've managed to get it to work.
Based on the original board.c file copied from the TI starter kit, I
simply changed the slaves count to 2, and set CONFIG_PHY_ADDR to 1 in my
board config file.
Simple.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] How do I use AM335x eth1 rather than eth0 ? [SOLVED]
2013-04-13 17:46 ` Mark Jackson
@ 2015-03-17 9:12 ` tejbir
0 siblings, 0 replies; 6+ messages in thread
From: tejbir @ 2015-03-17 9:12 UTC (permalink / raw)
To: u-boot
We are also facing the same issue.We are trying to use phy id1 on eth1 for
ethernet gigabit phy and rest is for ethernet switch.I did some of the
changes w.r.t slaves and CONFIG_ADDR_PHY but nothing come out.So Kindly let
me know what other changes you made in order to enable eth1 .
Tj
--
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^ permalink raw reply [flat|nested] 6+ messages in thread
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2013-04-12 10:56 [U-Boot] How do I use AM335x eth1 rather than eth0 ? Mark Jackson
2013-04-12 16:05 ` Tom Rini
2013-04-12 19:20 ` Mark Jackson
2013-04-13 17:45 ` [U-Boot] How do I use AM335x eth1 rather than eth0 ? [SOLVED] Mark Jackson
2013-04-13 17:46 ` Mark Jackson
2015-03-17 9:12 ` tejbir
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