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From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Subject: [PATCH 4/6] ata: sata_mv: enable Generation 2 speed support
Date: Tue, 18 Jan 2022 15:04:51 +0100	[thread overview]
Message-ID: <20220118140453.1860909-5-s.trumtrar@pengutronix.de> (raw)
In-Reply-To: <20220118140453.1860909-1-s.trumtrar@pengutronix.de>

The ARMADA-XP core supports the Gen2 speed.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
 drivers/ata/sata_mv.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index b8d21525a7..dd326428f4 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -40,6 +40,9 @@ static void ata_ioports_init(struct ata_ioports *io,
 #define EDMA_EN				(1 << 0)	/* enable EDMA */
 #define EDMA_DS				(1 << 1)	/* disable EDMA; self-negated */
 #define REG_EDMA_COMMAND__EATARST	0x00000004
+#define REG_EDMA_IORDY_TMOUT(n)		((n) * 0x2000 + 0x2034)
+#define REG_SATA_IFCFG(n)		((n) * 0x2000 + 0x2050)
+#define REG_SATA_IFCFG_GEN2EN		(1 << 7)
 
 #define REG_ATA_BASE			0x2100
 #define REG_SSTATUS(n)			((n) * 0x2000 + 0x2300)
@@ -124,6 +127,13 @@ static int mv_sata_probe(struct device_d *dev)
 		return ret;
 	}
 
+	/* increase IORdy signal timeout */
+	writel(0x800, base + REG_EDMA_IORDY_TMOUT(0));
+	/* set GEN2i Speed */
+	tmp = readl(base + REG_SATA_IFCFG(0));
+	tmp |= REG_SATA_IFCFG_GEN2EN;
+	writel(tmp, base + REG_SATA_IFCFG(0));
+
 	mv_soc_65n_phy_errata(base);
 
 	writel(REG_EDMA_COMMAND__EATARST, base + REG_EDMA_COMMAND(0));
-- 
2.30.2


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  parent reply	other threads:[~2022-01-18 14:06 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-18 14:04 [PATCH 0/6] sata_mv: cleanup and error handling Steffen Trumtrar
2022-01-18 14:04 ` [PATCH 1/6] ata: sata_mv: cleanup alignment Steffen Trumtrar
2022-01-18 14:04 ` [PATCH 2/6] ata: sata_mv: clear SERROR and en/disable EDMA Steffen Trumtrar
2022-01-18 14:04 ` [PATCH 3/6] ata: sata_mv: handle the phy errata Steffen Trumtrar
2022-01-18 14:04 ` Steffen Trumtrar [this message]
2022-01-18 14:04 ` [PATCH 5/6] ata: sata_mv: issue hard-reset on probe Steffen Trumtrar
2022-01-18 14:04 ` [PATCH 6/6] ata: sata_mv: try probing multiple times Steffen Trumtrar
2022-01-20  8:32   ` Sascha Hauer

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