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cy82c693: remove dead CY82C693_SETDMA_CLOCK code 

Remove dead CY82C693_SETDMA_CLOCK code and now not needed
init_chipset_cy82c693().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-10-13 21:39:39 +02:00
Родитель 0d346ba073
Коммит 00bb2c16e8
1 изменённых файлов: 0 добавлений и 60 удалений
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60
drivers/ide/pci/cy82c693.c
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@ -50,18 +50,12 @@
#define DRV_NAME "cy82c693"
/* the current version */
#define CY82_VERSION "CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)"
/*
* The following are used to debug the driver.
*/
#define CY82C693_DEBUG_LOGS 0
#define CY82C693_DEBUG_INFO 0
/* define CY82C693_SETDMA_CLOCK to set DMA Controller Clock Speed to ATCLK */
#undef CY82C693_SETDMA_CLOCK
/*
* NOTE: the value for busmaster timeout is tricky and I got it by
* trial and error! By using a to low value will cause DMA timeouts
@ -89,7 +83,6 @@
#define CY82_INDEX_PORT 0x22
#define CY82_DATA_PORT 0x23
#define CY82_INDEX_CTRLREG1 0x01
#define CY82_INDEX_CHANNEL0 0x30
#define CY82_INDEX_CHANNEL1 0x31
#define CY82_INDEX_TIMEOUT 0x32
@ -329,58 +322,6 @@ static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio)
#endif /* CY82C693_DEBUG_INFO */
}
/*
* this function is called during init and is used to setup the cy82c693 chip
*/
static unsigned int init_chipset_cy82c693(struct pci_dev *dev)
{
if (PCI_FUNC(dev->devfn) != 1)
return 0;
#ifdef CY82C693_SETDMA_CLOCK
u8 data = 0;
#endif /* CY82C693_SETDMA_CLOCK */
/* write info about this verion of the driver */
printk(KERN_INFO CY82_VERSION "\n");
#ifdef CY82C693_SETDMA_CLOCK
/* okay let's set the DMA clock speed */
outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
data = inb(CY82_DATA_PORT);
#if CY82C693_DEBUG_INFO
printk(KERN_INFO DRV_NAME ": Peripheral Configuration Register: 0x%X\n",
data);
#endif /* CY82C693_DEBUG_INFO */
/*
* for some reason sometimes the DMA controller
* speed is set to ATCLK/2 ???? - we fix this here
*
* note: i don't know what causes this strange behaviour,
* but even changing the dma speed doesn't solve it :-(
* the ide performance is still only half the normal speed
*
* if anybody knows what goes wrong with my machine, please
* let me know - ASK
*/
data |= 0x03;
outb(CY82_INDEX_CTRLREG1, CY82_INDEX_PORT);
outb(data, CY82_DATA_PORT);
#if CY82C693_DEBUG_INFO
printk(KERN_INFO ": New Peripheral Configuration Register: 0x%X\n",
data);
#endif /* CY82C693_DEBUG_INFO */
#endif /* CY82C693_SETDMA_CLOCK */
return 0;
}
static void __devinit init_iops_cy82c693(ide_hwif_t *hwif)
{
static ide_hwif_t *primary;
@ -401,7 +342,6 @@ static const struct ide_port_ops cy82c693_port_ops = {
static const struct ide_port_info cy82c693_chipset __devinitdata = {
.name = DRV_NAME,
.init_chipset = init_chipset_cy82c693,
.init_iops = init_iops_cy82c693,
.port_ops = &cy82c693_port_ops,
.chipset = ide_cy82c693,