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>
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 @@
}
}
+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)
{
diff --git a/include/asm-ppc/fsl_pci.h b/include/asm-ppc/fsl_pci.h
index b2ff0e9..f625d19 100644
--- a/include/asm-ppc/fsl_pci.h
+++ b/include/asm-ppc/fsl_pci.h
@@ -154,4 +154,30 @@
char res24[252];
} ccsr_fsl_pci_t;
+struct fsl_pci_info {
+ unsigned long regs;
+ pci_addr_t mem_bus;
+ phys_size_t mem_phys;
+ pci_size_t mem_size;
+ pci_addr_t io_bus;
+ phys_size_t io_phys;
+ pci_size_t io_size;
+ int pci_num;
+};
+
+int fsl_pci_init_port(struct fsl_pci_info *pci_info,
+ struct pci_controller *hose, int busno);
+
+#define SET_STD_PCIE_INFO(x, num) \
+{ \
+ x.regs = CONFIG_SYS_PCIE##num##_ADDR; \
+ x.mem_bus = CONFIG_SYS_PCIE##num##_MEM_BUS; \
+ x.mem_phys = CONFIG_SYS_PCIE##num##_MEM_PHYS; \
+ x.mem_size = CONFIG_SYS_PCIE##num##_MEM_SIZE; \
+ x.io_bus = CONFIG_SYS_PCIE##num##_IO_BUS; \
+ x.io_phys = CONFIG_SYS_PCIE##num##_IO_PHYS; \
+ x.io_size = CONFIG_SYS_PCIE##num##_IO_SIZE; \
+ x.pci_num = num; \
+}
+
#endif