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| author | Poonam Aggrwal <poonam.aggrwal@freescale.com> | 2009-08-21 07:29:42 +0530 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-08-28 17:12:43 -0500 |
| commit | 0d3d68b25a8e7790f58530ddccbd61f9fc0245ef (patch) | |
| tree | 189b2096c1325c70abf7d20043af8a27bc341800 /drivers | |
| parent | 05f6f66474312ad03c39b4ca4875af46c87366bf (diff) | |
| download | u-boot-imx-0d3d68b25a8e7790f58530ddccbd61f9fc0245ef.zip u-boot-imx-0d3d68b25a8e7790f58530ddccbd61f9fc0245ef.tar.gz u-boot-imx-0d3d68b25a8e7790f58530ddccbd61f9fc0245ef.tar.bz2 | |
driver/fsl_pci: Add fsl_pci_init_port function to initialize a PCI controller
fsl_pci_init_port can be called from board specific PCI initialization
routines to setup the PCI (or PCIe) controller. This will reduce code
redundancy in most of the 85xx/86xx FSL board ports that setup PCI.
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/fsl_pci_init.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c index ee89aaa..885542c 100644 --- a/drivers/pci/fsl_pci_init.c +++ b/drivers/pci/fsl_pci_init.c @@ -412,6 +412,50 @@ void fsl_pci_init(struct pci_controller *hose, u32 cfg_addr, u32 cfg_data) } } +int fsl_pci_init_port(struct fsl_pci_info *pci_info, + struct pci_controller *hose, int busno) +{ + volatile ccsr_fsl_pci_t *pci; + struct pci_region *r; + + pci = (ccsr_fsl_pci_t *) pci_info->regs; + + /* on non-PCIe controllers we don't have pme_msg_det so this code + * should do nothing since the read will return 0 + */ + if (in_be32(&pci->pme_msg_det)) { + out_be32(&pci->pme_msg_det, 0xffffffff); + debug (" with errors. Clearing. Now 0x%08x", + pci->pme_msg_det); + } + + r = hose->regions + hose->region_count; + + /* outbound memory */ + pci_set_region(r++, + pci_info->mem_bus, + pci_info->mem_phys, + pci_info->mem_size, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region(r++, + pci_info->io_bus, + pci_info->io_phys, + pci_info->io_size, + PCI_REGION_IO); + + hose->region_count = r - hose->regions; + hose->first_busno = busno; + + fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); + + printf("\n PCIE%x on bus %02x - %02x\n", pci_info->pci_num, + hose->first_busno, hose->last_busno); + + return(hose->last_busno + 1); +} + /* Enable inbound PCI config cycles for agent/endpoint interface */ void fsl_pci_config_unlock(struct pci_controller *hose) { |