From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>,
Trent Piepho <tpiepho@impinj.com>,
Lucas Stach <l.stach@pengutronix.de>,
Bjorn Helgaas <bhelgaas@google.com>,
Fabio Estevam <fabio.estevam@nxp.com>,
Chris Healy <cphealy@gmail.com>,
Leonard Crestez <leonard.crestez@nxp.com>,
"A.s. Dong" <aisheng.dong@nxp.com>,
Richard Zhu <hongxing.zhu@nxp.com>,
linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: [PATCH v5 2/4] PCI: imx6: Mark PHY functions as i.MX6 specific
Date: Sat, 12 Jan 2019 13:55:59 -0800 [thread overview]
Message-ID: <20190112215601.9535-3-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190112215601.9535-1-andrew.smirnov@gmail.com>
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@impinj.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: "A.s. Dong" <aisheng.dong@nxp.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: linux-imx@nxp.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
---
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 efff3d5e9162..c55d93c1187d 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,
--
2.20.1
next prev parent reply other threads:[~2019-01-12 21:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-12 21:55 [PATCH v5 0/4] PCIE support for i.MX8MQ Andrey Smirnov
2019-01-12 21:55 ` [PATCH v5 1/4] PCI: imx6: introduce drvdata Andrey Smirnov
2019-01-12 21:55 ` Andrey Smirnov [this message]
2019-01-12 21:56 ` [PATCH v5 3/4] PCI: imx6: Convert DIRECT_SPEED_CHANGE quirk code to use a flag Andrey Smirnov
2019-01-12 21:56 ` [PATCH v5 4/4] PCI: imx6: Add support for i.MX8MQ Andrey Smirnov
2019-01-24 12:26 ` [PATCH v5 0/4] PCIE " Lorenzo Pieralisi
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