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>
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index d689fb9..55d3ce0 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -272,17 +272,17 @@
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 @@
}
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 @@
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 @@
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 @@
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 @@
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 @@
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 */