+/**
+ * mpt_mapresources - map in memory mapped io
+ * @ioc: Pointer to pointer to IOC adapter
+ *
+ **/
+static int
+mpt_mapresources(MPT_ADAPTER *ioc)
+{
+ u8 __iomem *mem;
+ int ii;
+ unsigned long mem_phys;
+ unsigned long port;
+ u32 msize;
+ u32 psize;
+ u8 revision;
+ int r = -ENODEV;
+ struct pci_dev *pdev;
+
+ pdev = ioc->pcidev;
+ ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
+ if (pci_enable_device_mem(pdev)) {
+ printk(MYIOC_s_ERR_FMT "pci_enable_device_mem() "
+ "failed\n", ioc->name);
+ return r;
+ }
+ if (pci_request_selected_regions(pdev, ioc->bars, "mpt")) {
+ printk(MYIOC_s_ERR_FMT "pci_request_selected_regions() with "
+ "MEM failed\n", ioc->name);
+ return r;
+ }
+
+ pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
+
+ if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)
+ && !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
+ dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+ ": 64 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+ ioc->name));
+ } else if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK)
+ && !pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ dinitprintk(ioc, printk(MYIOC_s_INFO_FMT
+ ": 32 BIT PCI BUS DMA ADDRESSING SUPPORTED\n",
+ ioc->name));
+ } else {
+ printk(MYIOC_s_WARN_FMT "no suitable DMA mask for %s\n",
+ ioc->name, pci_name(pdev));
+ pci_release_selected_regions(pdev, ioc->bars);
+ return r;
+ }
+
+ mem_phys = msize = 0;
+ port = psize = 0;
+ for (ii = 0; ii < DEVICE_COUNT_RESOURCE; ii++) {
+ if (pci_resource_flags(pdev, ii) & PCI_BASE_ADDRESS_SPACE_IO) {
+ if (psize)
+ continue;
+ /* Get I/O space! */
+ port = pci_resource_start(pdev, ii);
+ psize = pci_resource_len(pdev, ii);
+ } else {
+ if (msize)
+ continue;
+ /* Get memmap */
+ mem_phys = pci_resource_start(pdev, ii);
+ msize = pci_resource_len(pdev, ii);
+ }
+ }
+ ioc->mem_size = msize;
+
+ mem = NULL;
+ /* Get logical ptr for PciMem0 space */
+ /*mem = ioremap(mem_phys, msize);*/
+ mem = ioremap(mem_phys, msize);
+ if (mem == NULL) {
+ printk(MYIOC_s_ERR_FMT ": ERROR - Unable to map adapter"
+ " memory!\n", ioc->name);
+ return -EINVAL;
+ }
+ ioc->memmap = mem;
+ dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "mem = %p, mem_phys = %lx\n",
+ ioc->name, mem, mem_phys));
+
+ ioc->mem_phys = mem_phys;
+ ioc->chip = (SYSIF_REGS __iomem *)mem;
+
+ /* Save Port IO values in case we need to do downloadboot */
+ ioc->pio_mem_phys = port;
+ ioc->pio_chip = (SYSIF_REGS __iomem *)port;
+
+ return 0;
+}
+