topic Re: MPC-8548 PCI Config space in PowerQUICC Processors https://community.nxp.com/t5/PowerQUICC-Processors/MPC-8548-PCI-Config-space/m-p/143989#M37 <HTML><HEAD></HEAD><BODY>The Device ID and Vendor ID can not be changed.<BR /><BR />Typically the bootrom would write the Subsystem ID and Subsystem Vendor ID by doing a config write to the controller cfg space.<BR /><BR />For PCI, just write the desired value to offset 0x2c.<BR />For PCI Express, write offset 0x478 and then set the ready bit in 0x4b0.<BR /><BR />Search for "subsystem" in:<BR /><BR /><A href="http://www.freescale.com/files/32bit/doc/ref_manual/MPC8548ERM.pdf" target="test_blank">http://www.freescale.com/files/32bit/doc/ref_manual/MPC8548ERM.pdf</A><BR /><BR />-EdS</BODY></HTML> Sat, 03 Mar 2007 13:47:14 GMT ed_swarthout 2007-03-03T13:47:14Z MPC-8548 PCI Config space https://community.nxp.com/t5/PowerQUICC-Processors/MPC-8548-PCI-Config-space/m-p/143988#M36 <HTML><HEAD></HEAD><BODY><DIV><DIV>How can I change the "Device ID, Vendor ID" and/or "Subsystem Vendor ID, Subsystem ID" of the MPC-8548 PCI config space ?</DIV><DIV>Thanks</DIV></DIV></BODY></HTML> Wed, 31 Jan 2007 03:03:19 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC-8548-PCI-Config-space/m-p/143988#M36 Art999 2007-01-31T03:03:19Z Re: MPC-8548 PCI Config space https://community.nxp.com/t5/PowerQUICC-Processors/MPC-8548-PCI-Config-space/m-p/143989#M37 <HTML><HEAD></HEAD><BODY>The Device ID and Vendor ID can not be changed.<BR /><BR />Typically the bootrom would write the Subsystem ID and Subsystem Vendor ID by doing a config write to the controller cfg space.<BR /><BR />For PCI, just write the desired value to offset 0x2c.<BR />For PCI Express, write offset 0x478 and then set the ready bit in 0x4b0.<BR /><BR />Search for "subsystem" in:<BR /><BR /><A href="http://www.freescale.com/files/32bit/doc/ref_manual/MPC8548ERM.pdf" target="test_blank">http://www.freescale.com/files/32bit/doc/ref_manual/MPC8548ERM.pdf</A><BR /><BR />-EdS</BODY></HTML> Sat, 03 Mar 2007 13:47:14 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC-8548-PCI-Config-space/m-p/143989#M37 ed_swarthout 2007-03-03T13:47:14Z