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Commit b5bc421c authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
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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: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 37024e8e

drivers/scsi/sata_sil24.c

+16 −0
Original line number Diff line number Diff line
@@ -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;