sata: ahci-da850: implement a workaround for the softreset quirk

	writel(val, ahci_base + SATA_P0PHYCR_REG);

}

static int ahci_da850_softreset(struct ata_link *link,

				unsigned int *class, unsigned long deadline)

{

	int pmp, ret;

	pmp = sata_srst_pmp(link);

	/*

	 * There's an issue with the SATA controller on da850 SoCs: if we

	 * enable Port Multiplier support, but the drive is connected directly

	 * to the board, it can't be detected. As a workaround: if PMP is

	 * enabled, we first call ahci_do_softreset() and pass it the result of

	 * sata_srst_pmp(). If this call fails, we retry with pmp = 0.

	 */

	ret = ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready);

	if (pmp && ret == -EBUSY)

		return ahci_do_softreset(link, class, 0,

					 deadline, ahci_check_ready);

	return ret;

}

static struct ata_port_operations ahci_da850_port_ops = {

	.inherits = &ahci_platform_ops,

	.softreset = ahci_da850_softreset,

	/*

	 * No need to override .pmp_softreset - it's only used for actual

	 * PMP-enabled ports.

	 */

};

static const struct ata_port_info ahci_da850_port_info = {

	.flags		= AHCI_FLAG_COMMON,

	.pio_mask	= ATA_PIO4,

	.udma_mask	= ATA_UDMA6,

	.port_ops	= &ahci_platform_ops,

	.port_ops	= &ahci_da850_port_ops,

};

static struct scsi_host_template ahci_platform_sht = {