When strobing the EATARST signal, the core will generate a hard-reset
instead of a soft-reset. Use this to have the core and ATA drive in a
better defined state.
Signed-off-by: Steffen Trumtrar <s.trumt...@pengutronix.de>
---
drivers/ata/sata_mv.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index dd326428f4..49205d24d8 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -136,6 +136,8 @@ static int mv_sata_probe(struct device_d *dev)
mv_soc_65n_phy_errata(base);
+ /* strobe for hard-reset */
+ writel(REG_EDMA_COMMAND__EATARST, base + REG_EDMA_COMMAND(0));
writel(REG_EDMA_COMMAND__EATARST, base + REG_EDMA_COMMAND(0));
udelay(25);
writel(0x0, base + REG_EDMA_COMMAND(0));
--
2.30.2
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