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[PATCH] sata_sil24: implement sil24_init_port() 

Implement sil24_init_port which performs port initialization via
PORT_CS_INIT.  To be used later by softreset and EH.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-04-11 22:32:19 +09:00 committed by Jeff Garzik
parent 37024e8ee0
commit b5bc421c96
1 changed files with 16 additions and 0 deletions
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16
drivers/scsi/sata_sil24.c
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@ -437,6 +437,22 @@ static void sil24_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
*tf = pp->tf;
}
static int sil24_init_port(struct ata_port *ap)
{
void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
u32 tmp;
writel(PORT_CS_INIT, port + PORT_CTRL_STAT);
ata_wait_register(port + PORT_CTRL_STAT,
PORT_CS_INIT, PORT_CS_INIT, 10, 100);
tmp = ata_wait_register(port + PORT_CTRL_STAT,
PORT_CS_RDY, 0, 10, 100);
if ((tmp & (PORT_CS_INIT | PORT_CS_RDY)) != PORT_CS_RDY)
return -EIO;
return 0;
}
static int sil24_softreset(struct ata_port *ap, unsigned int *class)
{
void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;