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-rw-r--r--drivers/pci/controller/dwc/pci-imx6.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 3d627f94a166..ea2617712a3b 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -89,9 +89,8 @@ struct imx6_pcie {
89}; 89};
90 90
91/* Parameters for the waiting for PCIe PHY PLL to lock on i.MX7 */ 91/* Parameters for the waiting for PCIe PHY PLL to lock on i.MX7 */
92#define PHY_PLL_LOCK_WAIT_MAX_RETRIES 2000
93#define PHY_PLL_LOCK_WAIT_USLEEP_MIN 50
94#define PHY_PLL_LOCK_WAIT_USLEEP_MAX 200 92#define PHY_PLL_LOCK_WAIT_USLEEP_MAX 200
93#define PHY_PLL_LOCK_WAIT_TIMEOUT (2000 * PHY_PLL_LOCK_WAIT_USLEEP_MAX)
95 94
96/* PCIe Root Complex registers (memory-mapped) */ 95/* PCIe Root Complex registers (memory-mapped) */
97#define PCIE_RC_IMX6_MSI_CAP 0x50 96#define PCIE_RC_IMX6_MSI_CAP 0x50
@@ -488,20 +487,14 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
488static void imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie) 487static void imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie)
489{ 488{
490 u32 val; 489 u32 val;
491 unsigned int retries;
492 struct device *dev = imx6_pcie->pci->dev; 490 struct device *dev = imx6_pcie->pci->dev;
493 491
494 for (retries = 0; retries < PHY_PLL_LOCK_WAIT_MAX_RETRIES; retries++) { 492 if (regmap_read_poll_timeout(imx6_pcie->iomuxc_gpr,
495 regmap_read(imx6_pcie->iomuxc_gpr, IOMUXC_GPR22, &val); 493 IOMUXC_GPR22, val,
496 494 val & IMX7D_GPR22_PCIE_PHY_PLL_LOCKED,
497 if (val & IMX7D_GPR22_PCIE_PHY_PLL_LOCKED) 495 PHY_PLL_LOCK_WAIT_USLEEP_MAX,
498 return; 496 PHY_PLL_LOCK_WAIT_TIMEOUT))
499 497 dev_err(dev, "PCIe PLL lock timeout\n");
500 usleep_range(PHY_PLL_LOCK_WAIT_USLEEP_MIN,
501 PHY_PLL_LOCK_WAIT_USLEEP_MAX);
502 }
503
504 dev_err(dev, "PCIe PLL lock timeout\n");
505} 498}
506 499
507static void imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie) 500static void imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie)