From: robert lazarski
Hi all, I'm coding for my custom 8548 board that should be in my hands any day now, using mpc8548cds as a reference. I notice that while the cds boards pci_init_board() is a few hundred lines long, some boards like the tqm85xx just wrap the function around pci_mpc85xx_init(&hose).
cpu/mpc85xx/pci.c::pci_mpc85xx_init() is obsolete.
It was split into two pieces. The board specific setup was moved to board/YOURBOARD.c, and the common pci/pcie code needed to prepare for calling the generic pci_hose_scan() is in drivers/fsl_pci_init.c.
See board/cds/mpc8548cds.c in git head.
The cds board does seem to have a lot of special case features.
Discard all the pci_mpc85xxcds_config_table stuff...
My question is, does it make sense to try pci plug-and-play first and then think about something more complex like the cds pci_init_board() ? A lot of boards seem to be using PNP.
Agreed. See the latest board/freescale/mpc8544ds/mpc8544ds.c for a clean example which initializes multiple controllers including PCIe.
-EdS