diff options
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-dma.c | 13 | ||||
| -rw-r--r-- | drivers/ide/pci/trm290.c | 64 |
2 files changed, 44 insertions, 33 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 15f8c6abe429..8d668a80adb3 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -933,6 +933,8 @@ static int ide_dma_iobase(ide_hwif_t *hwif, unsigned long base, unsigned int por void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports) { + u8 dma_stat; + if (ide_dma_iobase(hwif, base, num_ports)) return; @@ -971,13 +973,10 @@ void ide_setup_dma(ide_hwif_t *hwif, unsigned long base, unsigned num_ports) if (!hwif->dma_lost_irq) hwif->dma_lost_irq = &ide_dma_lost_irq; - if (hwif->chipset != ide_trm290) { - u8 dma_stat = hwif->INB(hwif->dma_status); - printk(", BIOS settings: %s:%s, %s:%s", - hwif->drives[0].name, (dma_stat & 0x20) ? "DMA" : "pio", - hwif->drives[1].name, (dma_stat & 0x40) ? "DMA" : "pio"); - } - printk("\n"); + dma_stat = hwif->INB(hwif->dma_status); + printk(KERN_CONT ", BIOS settings: %s:%s, %s:%s\n", + hwif->drives[0].name, (dma_stat & 0x20) ? "DMA" : "PIO", + hwif->drives[1].name, (dma_stat & 0x40) ? "DMA" : "PIO"); } EXPORT_SYMBOL_GPL(ide_setup_dma); diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c index 04cd893e1ab0..7b0338890699 100644 --- a/drivers/ide/pci/trm290.c +++ b/drivers/ide/pci/trm290.c @@ -1,5 +1,5 @@ /* - * linux/drivers/ide/pci/trm290.c Version 1.05 Dec. 26, 2007 + * linux/drivers/ide/pci/trm290.c Version 1.05 Dec. 30, 2007 * * Copyright (c) 1997-1998 Mark Lord * Copyright (c) 2007 MontaVista Software, Inc. <source@mvista.com> @@ -209,10 +209,10 @@ static int trm290_dma_setup(ide_drive_t *drive) } /* select DMA xfer */ trm290_prepare_drive(drive, 1); - outl(hwif->dmatable_dma | rw, hwif->dma_command); + outl(hwif->dmatable_dma | rw, hwif->dma_base); drive->waiting_for_dma = 1; /* start DMA */ - outw((count * 2) - 1, hwif->dma_status); + outw(count * 2 - 1, hwif->dma_base + 2); return 0; } @@ -222,23 +222,21 @@ static void trm290_dma_start(ide_drive_t *drive) static int trm290_ide_dma_end (ide_drive_t *drive) { - ide_hwif_t *hwif = HWIF(drive); - u16 status = 0; + u16 status; drive->waiting_for_dma = 0; /* purge DMA mappings */ ide_destroy_dmatable(drive); - status = inw(hwif->dma_status); - return (status != 0x00ff); + status = inw(HWIF(drive)->dma_base + 2); + return status != 0x00ff; } static int trm290_ide_dma_test_irq (ide_drive_t *drive) { - ide_hwif_t *hwif = HWIF(drive); - u16 status = 0; + u16 status; - status = inw(hwif->dma_status); - return (status == 0x00ff); + status = inw(HWIF(drive)->dma_base + 2); + return status == 0x00ff; } static void trm290_dma_host_set(ide_drive_t *drive, int on) @@ -247,21 +245,37 @@ static void trm290_dma_host_set(ide_drive_t *drive, int on) static void __devinit init_hwif_trm290(ide_hwif_t *hwif) { - unsigned int cfgbase = 0; + struct pci_dev *dev = hwif->pci_dev; + unsigned int cfg_base = pci_resource_start(dev, 4); unsigned long flags; u8 reg = 0; - struct pci_dev *dev = hwif->pci_dev; - - cfgbase = pci_resource_start(dev, 4); - if ((dev->class & 5) && cfgbase) { - hwif->config_data = cfgbase; - printk(KERN_INFO "TRM290: chip config base at 0x%04lx\n", - hwif->config_data); - } else { - hwif->config_data = 0x3df0; - printk(KERN_INFO "TRM290: using default config base at 0x%04lx\n", - hwif->config_data); + + if ((dev->class & 5) && cfg_base) + printk(KERN_INFO "TRM290: chip"); + else { + cfg_base = 0x3df0; + printk(KERN_INFO "TRM290: using default"); } + printk(KERN_CONT " config base at 0x%04x\n", cfg_base); + hwif->config_data = cfg_base; + hwif->dma_base = (cfg_base + 4) ^ (hwif->channel ? 0x80 : 0); + + printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx", + hwif->name, hwif->dma_base, hwif->dma_base + 3); + + if (!request_region(hwif->dma_base, 4, hwif->name)) { + printk(KERN_CONT " -- Error, ports in use.\n"); + return; + } + + hwif->dmatable_cpu = pci_alloc_consistent(dev, PRD_ENTRIES * PRD_BYTES, + &hwif->dmatable_dma); + if (!hwif->dmatable_cpu) { + printk(KERN_CONT " -- Error, unable to allocate DMA table.\n"); + release_region(hwif->dma_base, 4); + return; + } + printk(KERN_CONT "\n"); local_irq_save(flags); /* put config reg into first byte of hwif->select_data */ @@ -276,15 +290,13 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif) outb(reg, hwif->config_data + 3); local_irq_restore(flags); - if ((reg & 0x10)) + if (reg & 0x10) /* legacy mode */ hwif->irq = hwif->channel ? 15 : 14; else if (!hwif->irq && hwif->mate && hwif->mate->irq) /* sharing IRQ with mate */ hwif->irq = hwif->mate->irq; - ide_setup_dma(hwif, (hwif->config_data + 4) ^ (hwif->channel ? 0x0080 : 0x0000), 3); - hwif->dma_host_set = &trm290_dma_host_set; hwif->dma_setup = &trm290_dma_setup; hwif->dma_exec_cmd = &trm290_dma_exec_cmd; |