PCIE PHY IP block on i.MX7D differs from the one used on i.MX6 family,
so none of the code in current implementation of imx6_setup_phy_mpll() and
imx6_pcie_reset_phy() is applicable.
Tested-by: Trent Piepho <tpiepho@xxxxxxxxxx>
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Fabio Estevam <fabio.estevam@xxxxxxx>
Cc: Chris Healy <cphealy@xxxxxxxxx>
Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
Cc: Leonard Crestez <leonard.crestez@xxxxxxx>
Cc: "A.s. Dong" <aisheng.dong@xxxxxxx>
Cc: Richard Zhu <hongxing.zhu@xxxxxxx>
Cc: linux-imx@xxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-pci@xxxxxxxxxxxxxxx
---
drivers/pci/controller/dwc/pci-imx6.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index d50ed69e7a57..caa05104b90b 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -41,8 +41,11 @@ enum imx6_pcie_variants {
IMX7D,
};
+#define IMX6_PCIE_FLAG_IMX6_PHY BIT(0)
+
struct imx6_pcie_drvdata {
enum imx6_pcie_variants variant;
+ u32 flags;
};
struct imx6_pcie {
@@ -256,6 +259,9 @@ static void imx6_pcie_reset_phy(struct imx6_pcie *imx6_pcie)
{
u32 tmp;
+ if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
+ return;
+
pcie_phy_read(imx6_pcie, PHY_RX_OVRD_IN_LO, &tmp);
tmp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN |
PHY_RX_OVRD_IN_LO_RX_PLL_EN);
@@ -573,6 +579,9 @@ static int imx6_setup_phy_mpll(struct imx6_pcie *imx6_pcie)
int mult, div;
u32 val;
+ if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
+ return 0;
+
switch (phy_rate) {
case 125000000:
/*
@@ -1088,12 +1097,15 @@ static void imx6_pcie_shutdown(struct platform_device *pdev)
static const struct imx6_pcie_drvdata drvdata[] = {
[IMX6Q] = {
.variant = IMX6Q,
+ .flags = IMX6_PCIE_FLAG_IMX6_PHY,
},
[IMX6SX] = {
.variant = IMX6SX,
+ .flags = IMX6_PCIE_FLAG_IMX6_PHY,
},
[IMX6QP] = {
.variant = IMX6QP,
+ .flags = IMX6_PCIE_FLAG_IMX6_PHY,
},
[IMX7D] = {
.variant = IMX7D,
--
2.19.1
