UCC interactions

[Steven Blakeslee]

I believe the offset for UCC3 is wrong.  The usermanual says UCC3's
registers are at 0x2200-0x23FF.  0x4000 is SDMA.  Hope that helps.

> -----Original Message-----
> From:
linuxppc-dev-bounces+blakeslees=embeddedplanet.com at lists.ozlabs.org
> [mailto:linuxppc-dev-
> bounces+blakeslees=embeddedplanet.com at lists.ozlabs.org] On Behalf Of
Gary
> Thomas
> Sent: Monday, June 21, 2010 3:00 PM
> To: Linux PPC Development
> Subject: UCC interactions
> 
> I'm running 2.6.33.3 on MPC8358.  I have UCC1+UCC2 working fine
> for ethernet, but when I add UCC3 as a UART, the network devices
> quit working.
> 
> Here are my device tree entries:
>           /* ETH0 (UCC1, MDIO 0x02, RMII) */
>           enet_eth0: ethernet at 2000 {
>              device_type = "network";
>              compatible = "ucc_geth";
>              cell-index = <1>;
>              reg = <0x2000 0x200>;
>              interrupts = <32>;
>              interrupt-parent = <&qeic>;
>              local-mac-address = [ 00 00 00 00 00 00 ];
>              rx-clock-name = "none";
>              tx-clock-name = "clk16";
>              phy-handle = <&phy_eth0>;
>              phy-connection-type = "rmii";
>              pio-handle = <&pio_ucc1>;
>              linux,network-index = <0>;
>           };
> 
>           /* ETH1 (UCC2, MDIO 0x01, GMII) */
>           enet_eth1: ethernet at 3000 {
>              device_type = "network";
>              compatible = "ucc_geth";
>              cell-index = <2>;
>              reg = <0x3000 0x200>;
>              interrupts = <33>;
>              interrupt-parent = <&qeic>;
>              local-mac-address = [ 00 00 00 00 00 00 ];
>              rx-clock-name = "clk4";
>              tx-clock-name = "none";
>              fixed-link = <1 1 1000 0 0>;
>              phy-connection-type = "gmii";
>              pio-handle = <&pio_ucc2>;
>              linux,network-index = <1>;
>           };
> 
>           /* ttyQE0 (UCC3) */
>           serial_qe0: serial at 4000 {
>              device_type = "serial";
>              compatible = "ucc_uart";
>              cell-index = <3>;
>              reg = <0x4000 0x200>;
>              interrupts = <34>;
>              interrupt-parent = <&qeic>;
>              port-number = <0>;
>              rx-clock-name = "brg1";
>              tx-clock-name = "brg1";
>           };
> 
> Are there known interactions between these two drivers/ports?
> Maybe there's something obviously wrong with my device tree?
> 
> Thanks for any ideas/pointers
> 
> --
> ------------------------------------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
> ------------------------------------------------------------
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