Hi Mugunthan,
On Mon, Jun 1, 2015 at 11:10 AM, Mugunthan V N mugunthanvnm@ti.com wrote:
On Tuesday 26 May 2015 01:00 AM, Belisko Marek wrote:
Hi,
I have custom am33xx board with phy connected to slave2 port. I copy'n'paste cpsw setup from /board/BuR/common/common.c but I'm using only slave2 port (RMII mode) so my cpsw_slave_data looks like:
static struct cpsw_slave_data cpsw_slaves[] = { { .slave_reg_ofs = 0x308, .sliver_reg_ofs = 0xdc0, .phy_addr = 4, }, };
with this configuration cpsw driver can detect link but it cannot establish any communication (tested with dhcp command). When I add to cpsw_slaves dummy slave1 port definition (with e.g. phy_addr = 0) it start working.
mdio bus is working fine (tested with mdio list + mdio read). Pinmux is good as it works with dummy slave1 config. Any ideas what I'm doing wrong or why only slave2 port cannot be used? I grep whole source code but all boards using cpsw use slave1 only or slave1/slave2 configurations. Many thanks.
Do not remove slave 0 structures and have no of slaves as 2 and set active slave to 1 as done in the following commit 4c8014b9429b593c28fbf0384a6c7ded8587806a in mainline u-boot.
Thanks it works now. I picked 7a0227534dfc17c96bb02529fb69971d079a85f0 and setup everything as you suggested and it works fine.
The driver uses the slave numbers to add mac address to ALE, which will fail when you remove slaves from the salve structures.
I think this should be fixed to avoid problems when you have only slave2. When I have time I'll look on it.
Regards Mugunthan V N
BR,
marek