[v6 3/3] ahci: qoriq: add lx2160 platforms support

Peng Ma
2019-02-20T09:02:20Z

Lx2160a is a new introduced soc which supports ATA3.0

Signed-off-by: Peng Ma <peng.ma@nxp.com>
---
changed for V6:
- Add ecc_initialized to ensure set sata bit once of
ECC error register
- Recovery AHCI_LS2088A platform

drivers/ata/ahci_qoriq.c | 52 +++++++++++++++++++++++++++++++---------------
1 files changed, 35 insertions(+), 17 deletions(-)

diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c
index ce59253..08dbb86 100644
--- a/drivers/ata/ahci_qoriq.c
+++ b/drivers/ata/ahci_qoriq.c
@@ -58,6 +58,7 @@ enum ahci_qoriq_type {
AHCI_LS1046A,
AHCI_LS1088A,
AHCI_LS2088A,
+ AHCI_LX2160A,
};

struct ahci_qoriq_priv {
@@ -67,6 +68,8 @@ struct ahci_qoriq_priv {
bool is_dmacoherent;
};

+static bool ecc_initialized;
+
static const struct of_device_id ahci_qoriq_of_match[] = {
{ .compatible = "fsl,ls1021a-ahci", .data = (void *)AHCI_LS1021A},
{ .compatible = "fsl,ls1043a-ahci", .data = (void *)AHCI_LS1043A},
@@ -74,6 +77,7 @@ struct ahci_qoriq_priv {
{ .compatible = "fsl,ls1046a-ahci", .data = (void *)AHCI_LS1046A},
{ .compatible = "fsl,ls1088a-ahci", .data = (void *)AHCI_LS1088A},
{ .compatible = "fsl,ls2088a-ahci", .data = (void *)AHCI_LS2088A},
+ { .compatible = "fsl,lx2160a-ahci", .data = (void *)AHCI_LX2160A},
{},
};
MODULE_DEVICE_TABLE(of, ahci_qoriq_of_match);
@@ -165,9 +169,10 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)

switch (qpriv->type) {
case AHCI_LS1021A:
- if (!qpriv->ecc_addr)
+ if (!(qpriv->ecc_addr || ecc_initialized))
return -EINVAL;
- writel(SATA_ECC_DISABLE, qpriv->ecc_addr);
+ else if (qpriv->ecc_addr && !ecc_initialized)
+ writel(SATA_ECC_DISABLE, qpriv->ecc_addr);
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(LS1021A_PORT_PHY2, reg_base + PORT_PHY2);
writel(LS1021A_PORT_PHY3, reg_base + PORT_PHY3);
@@ -180,10 +185,12 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)
break;

case AHCI_LS1043A:
- if (!qpriv->ecc_addr)
+ if (!(qpriv->ecc_addr || ecc_initialized))
return -EINVAL;
- writel(readl(qpriv->ecc_addr) | ECC_DIS_ARMV8_CH2,
- qpriv->ecc_addr);
+ else if (qpriv->ecc_addr && !ecc_initialized)
+ writel(readl(qpriv->ecc_addr) |
+ ECC_DIS_ARMV8_CH2,
+ qpriv->ecc_addr);
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(AHCI_PORT_PHY2_CFG, reg_base + PORT_PHY2);
writel(AHCI_PORT_PHY3_CFG, reg_base + PORT_PHY3);
@@ -202,10 +209,12 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)
break;

case AHCI_LS1046A:
- if (!qpriv->ecc_addr)
+ if (!(qpriv->ecc_addr || ecc_initialized))
return -EINVAL;
- writel(readl(qpriv->ecc_addr) | ECC_DIS_ARMV8_CH2,
- qpriv->ecc_addr);
+ else if (qpriv->ecc_addr && !ecc_initialized)
+ writel(readl(qpriv->ecc_addr) |
+ ECC_DIS_ARMV8_CH2,
+ qpriv->ecc_addr);
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(AHCI_PORT_PHY2_CFG, reg_base + PORT_PHY2);
writel(AHCI_PORT_PHY3_CFG, reg_base + PORT_PHY3);
@@ -215,10 +224,13 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)
break;

case AHCI_LS1088A:
- if (!qpriv->ecc_addr)
+ case AHCI_LX2160A:
+ if (!(qpriv->ecc_addr || ecc_initialized))
return -EINVAL;
- writel(readl(qpriv->ecc_addr) | ECC_DIS_LS1088A,
- qpriv->ecc_addr);
+ else if (qpriv->ecc_addr && !ecc_initialized)
+ writel(readl(qpriv->ecc_addr) |
+ ECC_DIS_LS1088A,
+ qpriv->ecc_addr);
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(AHCI_PORT_PHY2_CFG, reg_base + PORT_PHY2);
writel(AHCI_PORT_PHY3_CFG, reg_base + PORT_PHY3);
@@ -237,6 +249,7 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)
break;
}

+ ecc_initialized = true;
return 0;
}

@@ -264,13 +277,18 @@ static int ahci_qoriq_probe(struct platform_device *pdev)

qoriq_priv->type = (enum ahci_qoriq_type)of_id->data;

- res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- "sata-ecc");
- if (res) {
- qoriq_priv->ecc_addr = devm_ioremap_resource(dev, res);
- if (IS_ERR(qoriq_priv->ecc_addr))
- return PTR_ERR(qoriq_priv->ecc_addr);
+ if (unlikely(!ecc_initialized)) {
+ res = platform_get_resource_byname(pdev,
+ IORESOURCE_MEM,
+ "sata-ecc");
+ if (res) {
+ qoriq_priv->ecc_addr =
+ devm_ioremap_resource(dev, res);
+ if (IS_ERR(qoriq_priv->ecc_addr))
+ return PTR_ERR(qoriq_priv->ecc_addr);
+ }
}
+
qoriq_priv->is_dmacoherent = of_dma_is_coherent(np);

rc = ahci_platform_enable_resources(hpriv);
--
1.7.1