diff options
Diffstat (limited to 'drivers/ide/pci/sgiioc4.c')
| -rw-r--r-- | drivers/ide/pci/sgiioc4.c | 60 |
1 files changed, 26 insertions, 34 deletions
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 681306c9d79b..dd634541ce36 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2003-2006 Silicon Graphics, Inc. All Rights Reserved. + * Copyright (C) 2008 MontaVista Software, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -22,7 +23,6 @@ #include <linux/types.h> #include <linux/pci.h> #include <linux/delay.h> -#include <linux/hdreg.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/ioport.h> @@ -151,7 +151,7 @@ sgiioc4_clearirq(ide_drive_t * drive) int count = 0; stat = sgiioc4_read_status(hwif); - while ((stat & 0x80) && (count++ < 100)) { + while ((stat & ATA_BUSY) && (count++ < 100)) { udelay(1); stat = sgiioc4_read_status(hwif); } @@ -311,7 +311,7 @@ static u8 sgiioc4_read_status(ide_hwif_t *hwif) u8 reg = (u8) readb((void __iomem *) port); if ((port & 0xFFF) == 0x11C) { /* Status register of IOC4 */ - if (reg & 0x51) { /* Not busy...check for interrupt */ + if (!(reg & ATA_BUSY)) { /* Not busy... check for interrupt */ unsigned long other_ir = port - 0x110; unsigned int intr_reg = (u32) readl((void __iomem *) other_ir); @@ -339,35 +339,31 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d) if (dma_base == 0) return -1; - printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name, - dma_base, dma_base + num_ports - 1); + printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); - if (!request_mem_region(dma_base, num_ports, hwif->name)) { - printk(KERN_ERR - "%s(%s) -- ERROR, Addresses 0x%p to 0x%p " - "ALREADY in use\n", - __func__, hwif->name, (void *) dma_base, - (void *) dma_base + num_ports - 1); + if (request_mem_region(dma_base, num_ports, hwif->name) == NULL) { + printk(KERN_ERR "%s(%s) -- ERROR: addresses 0x%08lx to 0x%08lx " + "already in use\n", __func__, hwif->name, + dma_base, dma_base + num_ports - 1); return -1; } virt_dma_base = ioremap(dma_base, num_ports); if (virt_dma_base == NULL) { - printk(KERN_ERR - "%s(%s) -- ERROR, Unable to map addresses 0x%lx to 0x%lx\n", - __func__, hwif->name, dma_base, dma_base + num_ports - 1); + printk(KERN_ERR "%s(%s) -- ERROR: unable to map addresses " + "0x%lx to 0x%lx\n", __func__, hwif->name, + dma_base, dma_base + num_ports - 1); goto dma_remap_failure; } hwif->dma_base = (unsigned long) virt_dma_base; - hwif->dmatable_cpu = pci_alloc_consistent(dev, - IOC4_PRD_ENTRIES * IOC4_PRD_BYTES, - &hwif->dmatable_dma); + hwif->sg_max_nents = IOC4_PRD_ENTRIES; - if (!hwif->dmatable_cpu) - goto dma_pci_alloc_failure; + hwif->prd_max_nents = IOC4_PRD_ENTRIES; + hwif->prd_ent_size = IOC4_PRD_BYTES; - hwif->sg_max_nents = IOC4_PRD_ENTRIES; + if (ide_allocate_dma_engine(hwif)) + goto dma_pci_alloc_failure; pad = pci_alloc_consistent(dev, IOC4_IDE_CACHELINE_SIZE, (dma_addr_t *)&hwif->extra_base); @@ -376,13 +372,11 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d) return 0; } - pci_free_consistent(dev, IOC4_PRD_ENTRIES * IOC4_PRD_BYTES, - hwif->dmatable_cpu, hwif->dmatable_dma); - printk(KERN_INFO - "%s() -- Error! Unable to allocate DMA Maps for drive %s\n", + ide_release_dma_engine(hwif); + + printk(KERN_ERR "%s(%s) -- ERROR: Unable to allocate DMA maps\n", __func__, hwif->name); - printk(KERN_INFO - "Changing from DMA to PIO mode for Drive %s\n", hwif->name); + printk(KERN_INFO "%s: changing from DMA to PIO mode", hwif->name); dma_pci_alloc_failure: iounmap(virt_dma_base); @@ -618,14 +612,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev) irqport = (unsigned long) virt_base + IOC4_INTR_OFFSET; cmd_phys_base = bar0 + IOC4_CMD_OFFSET; - if (!request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE, - DRV_NAME)) { - printk(KERN_ERR - "%s %s: -- ERROR, Addresses " - "0x%p to 0x%p ALREADY in use\n", - DRV_NAME, pci_name(dev), (void *)cmd_phys_base, - (void *) cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE); - return -ENOMEM; + if (request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE, + DRV_NAME) == NULL) { + printk(KERN_ERR "%s %s -- ERROR: addresses 0x%08lx to 0x%08lx " + "already in use\n", DRV_NAME, pci_name(dev), + cmd_phys_base, cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE); + return -EBUSY; } /* Initialize the IO registers */ |