[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>
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@ -437,6 +437,22 @@ static void sil24_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
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*tf = pp->tf;
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}
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static int sil24_init_port(struct ata_port *ap)
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{
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void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
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u32 tmp;
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writel(PORT_CS_INIT, port + PORT_CTRL_STAT);
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ata_wait_register(port + PORT_CTRL_STAT,
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PORT_CS_INIT, PORT_CS_INIT, 10, 100);
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tmp = ata_wait_register(port + PORT_CTRL_STAT,
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PORT_CS_RDY, 0, 10, 100);
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if ((tmp & (PORT_CS_INIT | PORT_CS_RDY)) != PORT_CS_RDY)
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return -EIO;
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return 0;
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}
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static int sil24_softreset(struct ata_port *ap, unsigned int *class)
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{
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void __iomem *port = (void __iomem *)ap->ioaddr.cmd_addr;
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