[SCSI] advansys: ioremap no longer needs page-aligned addresses

At some point during Linux 2.1 development, ioremap() gained the ability
to handle addresses which weren't page-aligned.  Also expand the CONFIG_PCI
range to encompass that entire section of wide board initialisation, since
all wide boards are PCI.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index e661986..2f37076 100644 (file)
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -17090,8 +17090,6 @@ advansys_board_found(int iop, struct device *dev, int bus_type)
        ASC_DVC_VAR *asc_dvc_varp = NULL;
        ADV_DVC_VAR *adv_dvc_varp = NULL;
        int share_irq;
-       int iolen = 0;
-       ADV_PADDR pci_memory_address;
        int warn_code, err_code;
        int ret;
 
@@ -17136,13 +17134,13 @@ advansys_board_found(int iop, struct device *dev, int bus_type)
                asc_dvc_varp->iop_base = iop;
                asc_dvc_varp->isr_callback = asc_isr_callback;
        } else {
+#ifdef CONFIG_PCI
                ASC_DBG(1, "advansys_board_found: wide board\n");
                adv_dvc_varp = &boardp->dvc_var.adv_dvc_var;
                adv_dvc_varp->drv_ptr = boardp;
                adv_dvc_varp->cfg = &boardp->dvc_cfg.adv_dvc_cfg;
                adv_dvc_varp->isr_callback = adv_isr_callback;
                adv_dvc_varp->async_callback = adv_async_callback;
-#ifdef CONFIG_PCI
                if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW) {
                        ASC_DBG(1, "advansys_board_found: ASC-3550\n");
                        adv_dvc_varp->chip_type = ADV_CHIP_ASC3550;
@@ -17153,46 +17151,20 @@ advansys_board_found(int iop, struct device *dev, int bus_type)
                        ASC_DBG(1, "advansys_board_found: ASC-38C1600\n");
                        adv_dvc_varp->chip_type = ADV_CHIP_ASC38C1600;
                }
-#endif /* CONFIG_PCI */
 
-               /*
-                * Map the board's registers into virtual memory for
-                * PCI slave access. Only memory accesses are used to
-                * access the board's registers.
-                *
-                * Note: The PCI register base address is not always
-                * page aligned, but the address passed to ioremap()
-                * must be page aligned. It is guaranteed that the
-                * PCI register base address will not cross a page
-                * boundary.
-                */
-               if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) {
-                       iolen = ADV_3550_IOLEN;
-               } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) {
-                       iolen = ADV_38C0800_IOLEN;
-               } else {
-                       iolen = ADV_38C1600_IOLEN;
-               }
-#ifdef CONFIG_PCI
-               pci_memory_address = pci_resource_start(pdev, 1);
-               ASC_DBG1(1,
-                        "advansys_board_found: pci_memory_address: 0x%lx\n",
-                        (ulong)pci_memory_address);
-               if ((boardp->ioremap_addr =
-                    ioremap(pci_memory_address & PAGE_MASK, PAGE_SIZE)) == 0) {
+               boardp->asc_n_io_port = pci_resource_len(pdev, 1);
+               boardp->ioremap_addr = ioremap(pci_resource_start(pdev, 1),
+                                              boardp->asc_n_io_port);
+               if (!boardp->ioremap_addr) {
                        ASC_PRINT3
                            ("advansys_board_found: board %d: ioremap(%x, %d) returned NULL\n",
-                            boardp->id, pci_memory_address, iolen);
+                            boardp->id, pci_resource_start(pdev, 1),
+                            boardp->asc_n_io_port);
                        goto err_shost;
                }
-               ASC_DBG1(1, "advansys_board_found: ioremap_addr: 0x%lx\n",
-                        (ulong)boardp->ioremap_addr);
-               adv_dvc_varp->iop_base = (AdvPortAddr)
-                   (boardp->ioremap_addr +
-                    (pci_memory_address - (pci_memory_address & PAGE_MASK)));
+               adv_dvc_varp->iop_base = (AdvPortAddr)boardp->ioremap_addr
                ASC_DBG1(1, "advansys_board_found: iop_base: 0x%lx\n",
                         adv_dvc_varp->iop_base);
-#endif /* CONFIG_PCI */
 
                /*
                 * Even though it isn't used to access wide boards, other
@@ -17201,9 +17173,10 @@ advansys_board_found(int iop, struct device *dev, int bus_type)
                 */
                boardp->ioport = iop;
 
-               ASC_DBG2(1,
-                        "advansys_board_found: iopb_chip_id_1 0x%x, iopw_chip_id_0 0x%x\n",
-                        (ushort)inp(iop + 1), (ushort)inpw(iop));
+               ASC_DBG2(1, "advansys_board_found: iopb_chip_id_1 0x%x, "
+                        "iopw_chip_id_0 0x%x\n", (ushort)inp(iop + 1),
+                        (ushort)inpw(iop));
+#endif /* CONFIG_PCI */
        }
 
 #ifdef CONFIG_PROC_FS
@@ -17556,7 +17529,6 @@ advansys_board_found(int iop, struct device *dev, int bus_type)
                 * PCI Memory Mapped I/O.
                 */
                shost->io_port = iop;
-               boardp->asc_n_io_port = iolen;
 
                shost->this_id = adv_dvc_varp->chip_scsi_id;