diff options
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/ahci_ceva.c | 84 |
1 files changed, 61 insertions, 23 deletions
diff --git a/drivers/ata/ahci_ceva.c b/drivers/ata/ahci_ceva.c index 207649d323c5..59de2ca1885c 100644 --- a/drivers/ata/ahci_ceva.c +++ b/drivers/ata/ahci_ceva.c @@ -50,21 +50,6 @@ #define PPCFG_PSS_EN (1 << 29) #define PPCFG_ESDF_EN (1 << 31) -#define PP2C_CIBGMN 0x0F -#define PP2C_CIBGMX (0x25 << 8) -#define PP2C_CIBGN (0x18 << 16) -#define PP2C_CINMP (0x29 << 24) - -#define PP3C_CWBGMN 0x04 -#define PP3C_CWBGMX (0x0B << 8) -#define PP3C_CWBGN (0x08 << 16) -#define PP3C_CWNMP (0x0F << 24) - -#define PP4C_BMX 0x0a -#define PP4C_BNM (0x08 << 8) -#define PP4C_SFD (0x4a << 16) -#define PP4C_PTST (0x06 << 24) - #define PP5C_RIT 0x60216 #define PP5C_RCT (0x7f0 << 20) @@ -87,6 +72,11 @@ struct ceva_ahci_priv { struct platform_device *ahci_pdev; + /* Port Phy2Cfg Register */ + u32 pp2c[NR_PORTS]; + u32 pp3c[NR_PORTS]; + u32 pp4c[NR_PORTS]; + u32 pp5c[NR_PORTS]; int flags; }; @@ -131,20 +121,16 @@ static void ahci_ceva_setup(struct ahci_host_priv *hpriv) writel(tmp, mmio + AHCI_VEND_PPCFG); /* Phy Control OOB timing parameters COMINIT */ - tmp = PP2C_CIBGMN | PP2C_CIBGMX | PP2C_CIBGN | PP2C_CINMP; - writel(tmp, mmio + AHCI_VEND_PP2C); + writel(cevapriv->pp2c[i], mmio + AHCI_VEND_PP2C); /* Phy Control OOB timing parameters COMWAKE */ - tmp = PP3C_CWBGMN | PP3C_CWBGMX | PP3C_CWBGN | PP3C_CWNMP; - writel(tmp, mmio + AHCI_VEND_PP3C); + writel(cevapriv->pp3c[i], mmio + AHCI_VEND_PP3C); /* Phy Control Burst timing setting */ - tmp = PP4C_BMX | PP4C_BNM | PP4C_SFD | PP4C_PTST; - writel(tmp, mmio + AHCI_VEND_PP4C); + writel(cevapriv->pp4c[i], mmio + AHCI_VEND_PP4C); /* Rate Change Timer and Retry Interval Timer setting */ - tmp = PP5C_RIT | PP5C_RCT; - writel(tmp, mmio + AHCI_VEND_PP5C); + writel(cevapriv->pp5c[i], mmio + AHCI_VEND_PP5C); /* Rx Watermark setting */ tmp = PTC_RX_WM_VAL | PTC_RSVD; @@ -187,6 +173,58 @@ static int ceva_ahci_probe(struct platform_device *pdev) if (of_property_read_bool(np, "ceva,broken-gen2")) cevapriv->flags = CEVA_FLAG_BROKEN_GEN2; + /* Read OOB timing value for COMINIT from device-tree */ + if (of_property_read_u8_array(np, "ceva,p0-cominit-params", + (u8 *)&cevapriv->pp2c[0], 4) < 0) { + dev_warn(dev, "ceva,p0-cominit-params property not defined\n"); + return -EINVAL; + } + + if (of_property_read_u8_array(np, "ceva,p1-cominit-params", + (u8 *)&cevapriv->pp2c[1], 4) < 0) { + dev_warn(dev, "ceva,p1-cominit-params property not defined\n"); + return -EINVAL; + } + + /* Read OOB timing value for COMWAKE from device-tree*/ + if (of_property_read_u8_array(np, "ceva,p0-comwake-params", + (u8 *)&cevapriv->pp3c[0], 4) < 0) { + dev_warn(dev, "ceva,p0-comwake-params property not defined\n"); + return -EINVAL; + } + + if (of_property_read_u8_array(np, "ceva,p1-comwake-params", + (u8 *)&cevapriv->pp3c[1], 4) < 0) { + dev_warn(dev, "ceva,p1-comwake-params property not defined\n"); + return -EINVAL; + } + + /* Read phy BURST timing value from device-tree */ + if (of_property_read_u8_array(np, "ceva,p0-burst-params", + (u8 *)&cevapriv->pp4c[0], 4) < 0) { + dev_warn(dev, "ceva,p0-burst-params property not defined\n"); + return -EINVAL; + } + + if (of_property_read_u8_array(np, "ceva,p1-burst-params", + (u8 *)&cevapriv->pp4c[1], 4) < 0) { + dev_warn(dev, "ceva,p1-burst-params property not defined\n"); + return -EINVAL; + } + + /* Read phy RETRY interval timing value from device-tree */ + if (of_property_read_u16_array(np, "ceva,p0-retry-params", + (u16 *)&cevapriv->pp5c[0], 2) < 0) { + dev_warn(dev, "ceva,p0-retry-params property not defined\n"); + return -EINVAL; + } + + if (of_property_read_u16_array(np, "ceva,p1-retry-params", + (u16 *)&cevapriv->pp5c[1], 2) < 0) { + dev_warn(dev, "ceva,p1-retry-params property not defined\n"); + return -EINVAL; + } + hpriv->plat_data = cevapriv; /* CEVA specific initialization */ |