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sata_mv: cosmetic renames 

Add _OFS suffix to more of the register offset names,
for consistency with the rest of the driver.

Also tag the defines for LTMODE and PHY_MODE4 to note
that read-after-write is necessary when updating those regs.

No code changes here.

[NOTE: this commit is undone a few commits later]

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Mark Lord 2009-04-06 15:25:39 -04:00 committed by Jeff Garzik
parent 2009177329
commit ba68460b8e
1 changed files with 18 additions and 17 deletions
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35
drivers/ata/sata_mv.c
View File

@ -272,17 +272,17 @@ enum {
SATA_FIS_IRQ_CAUSE_OFS = 0x364,
SATA_FIS_IRQ_AN = (1 << 9), /* async notification */
LTMODE_OFS = 0x30c,
LTMODE_OFS = 0x30c, /* requires read-after-write */
LTMODE_BIT8 = (1 << 8), /* unknown, but necessary */
PHY_MODE3 = 0x310,
PHY_MODE4 = 0x314,
PHY_MODE2_OFS = 0x330,
PHY_MODE3_OFS = 0x310,
PHY_MODE4_OFS = 0x314, /* requires read-after-write */
PHY_MODE4_CFG_MASK = 0x00000003, /* phy internal config field */
PHY_MODE4_CFG_VALUE = 0x00000001, /* phy internal config field */
PHY_MODE4_RSVD_ZEROS = 0x5de3fffa, /* Gen2e always write zeros */
PHY_MODE4_RSVD_ONES = 0x00000005, /* Gen2e always write ones */
PHY_MODE2 = 0x330,
SATA_IFCTL_OFS = 0x344,
SATA_TESTCTL_OFS = 0x348,
SATA_IFSTAT_OFS = 0x34c,
@ -3168,7 +3168,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
}
port_mmio = mv_port_base(mmio, idx);
tmp = readl(port_mmio + PHY_MODE2);
tmp = readl(port_mmio + PHY_MODE2_OFS);
hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */
hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */
@ -3192,25 +3192,25 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
u32 m2, m3;
if (fix_phy_mode2) {
m2 = readl(port_mmio + PHY_MODE2);
m2 = readl(port_mmio + PHY_MODE2_OFS);
m2 &= ~(1 << 16);
m2 |= (1 << 31);
writel(m2, port_mmio + PHY_MODE2);
writel(m2, port_mmio + PHY_MODE2_OFS);
udelay(200);
m2 = readl(port_mmio + PHY_MODE2);
m2 = readl(port_mmio + PHY_MODE2_OFS);
m2 &= ~((1 << 16) | (1 << 31));
writel(m2, port_mmio + PHY_MODE2);
writel(m2, port_mmio + PHY_MODE2_OFS);
udelay(200);
}
/*
* Gen-II/IIe PHY_MODE3 errata RM#2:
* Gen-II/IIe PHY_MODE3_OFS errata RM#2:
* Achieves better receiver noise performance than the h/w default:
*/
m3 = readl(port_mmio + PHY_MODE3);
m3 = readl(port_mmio + PHY_MODE3_OFS);
m3 = (m3 & 0x1f) | (0x5555601 << 5);
/* Guideline 88F5182 (GL# SATA-S11) */
@ -3218,7 +3218,7 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
m3 &= ~0x1c;
if (fix_phy_mode4) {
u32 m4 = readl(port_mmio + PHY_MODE4);
u32 m4 = readl(port_mmio + PHY_MODE4_OFS);
/*
* Enforce reserved-bit restrictions on GenIIe devices only.
* For earlier chipsets, force only the internal config field
@ -3228,17 +3228,18 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
m4 = (m4 & ~PHY_MODE4_RSVD_ZEROS) | PHY_MODE4_RSVD_ONES;
else
m4 = (m4 & ~PHY_MODE4_CFG_MASK) | PHY_MODE4_CFG_VALUE;
writel(m4, port_mmio + PHY_MODE4);
writel(m4, port_mmio + PHY_MODE4_OFS);
}
/*
* Workaround for 60x1-B2 errata SATA#13:
* Any write to PHY_MODE4 (above) may corrupt PHY_MODE3,
* so we must always rewrite PHY_MODE3 after PHY_MODE4.
* Or ensure we use writelfl() when writing PHY_MODE4.
*/
writel(m3, port_mmio + PHY_MODE3);
writel(m3, port_mmio + PHY_MODE3_OFS);
/* Revert values of pre-emphasis and signal amps to the saved ones */
m2 = readl(port_mmio + PHY_MODE2);
m2 = readl(port_mmio + PHY_MODE2_OFS);
m2 &= ~MV_M2_PREAMP_MASK;
m2 |= hpriv->signal[port].amps;
@ -3251,7 +3252,7 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
m2 |= 0x0000900F;
}
writel(m2, port_mmio + PHY_MODE2);
writel(m2, port_mmio + PHY_MODE2_OFS);
}
/* TODO: use the generic LED interface to configure the SATA Presence */
@ -3269,7 +3270,7 @@ static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx,
u32 tmp;
port_mmio = mv_port_base(mmio, idx);
tmp = readl(port_mmio + PHY_MODE2);
tmp = readl(port_mmio + PHY_MODE2_OFS);
hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */
hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */