Port of a Linux commit <TBD>
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()
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
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/pci/pci-imx6.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/pci/pci-imx6.c b/drivers/pci/pci-imx6.c
index dcebd7658..2911a019c 100644
--- a/drivers/pci/pci-imx6.c
+++ b/drivers/pci/pci-imx6.c
@@ -42,8 +42,11 @@ 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 {
@@ -235,6 +238,9 @@ static void imx6_pcie_reset_phy(struct imx6_pcie *imx6_pcie)
{
uint32_t temp;
+ if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
+ return;
+
pcie_phy_read(imx6_pcie, PHY_RX_OVRD_IN_LO, &temp);
temp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN |
PHY_RX_OVRD_IN_LO_RX_PLL_EN);
@@ -756,9 +762,11 @@ static void imx6_pcie_remove(struct device_d *dev)
static const struct imx6_pcie_drvdata drvdata[] = {
[IMX6Q] = {
.variant = IMX6Q,
+ .flags = IMX6_PCIE_FLAG_IMX6_PHY,
},
[IMX6QP] = {
.variant = IMX6QP,
+ .flags = IMX6_PCIE_FLAG_IMX6_PHY,
},
[IMX7D] = {
.variant = IMX7D,
--
2.20.1
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