On 06/21/2010 01:19 PM, Steven Blakeslee wrote:

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

Looks like that was it (not sure where I got that value from!)

Thanks

quoted

-----Original Message-----
From:

linuxppc-dev-bounces+blakeslees=embeddedplanet.com@lists.ozlabs.org

quoted

[mailto:linuxppc-dev-
bounces+blakeslees=embeddedplanet.com@lists.ozlabs.org] On Behalf Of

Gary

quoted

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@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@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@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

--
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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