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path: root/drivers/ide/pci/trm290.c
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Diffstat (limited to 'drivers/ide/pci/trm290.c')
-rw-r--r--drivers/ide/pci/trm290.c64
1 files changed, 38 insertions, 26 deletions
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;