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| author | Steffen Trumtrar <s.trumtrar@pengutronix.de> | 2022-01-18 15:04:52 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2022-01-20 09:30:06 +0100 |
| commit | 59d6f015088ae1729259b5e14fa2efecf87f056e (patch) | |
| tree | 1eb48bcb44c5067685960e8a3f55d9b75d707521 /drivers/ata | |
| parent | c2983e6e915ab08517853b35eab6a6c334b3cbc3 (diff) | |
| download | barebox-59d6f015088ae1729259b5e14fa2efecf87f056e.tar.gz barebox-59d6f015088ae1729259b5e14fa2efecf87f056e.tar.xz | |
ata: sata_mv: issue hard-reset on probe
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.trumtrar@pengutronix.de>
Link: https://lore.barebox.org/20220118140453.1860909-6-s.trumtrar@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/sata_mv.c | 2 |
1 files changed, 2 insertions, 0 deletions
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)); |