diff options
Diffstat (limited to 'drivers/pci/controller/dwc/pci-imx6.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-imx6.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 669e01353026..3fd084357488 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -112,7 +112,7 @@ struct imx6_pcie { #define PCIE_PHY_CTRL_RD BIT(19) #define PCIE_PHY_STAT (PL_OFFSET + 0x110) -#define PCIE_PHY_STAT_ACK_LOC 16 +#define PCIE_PHY_STAT_ACK BIT(16) #define PCIE_LINK_WIDTH_SPEED_CONTROL 0x80C @@ -151,16 +151,16 @@ struct imx6_pcie { #define PHY_RX_OVRD_IN_LO_RX_DATA_EN BIT(5) #define PHY_RX_OVRD_IN_LO_RX_PLL_EN BIT(3) -static int pcie_phy_poll_ack(struct imx6_pcie *imx6_pcie, int exp_val) +static int pcie_phy_poll_ack(struct imx6_pcie *imx6_pcie, bool exp_val) { struct dw_pcie *pci = imx6_pcie->pci; - u32 val; + bool val; u32 max_iterations = 10; u32 wait_counter = 0; do { - val = dw_pcie_readl_dbi(pci, PCIE_PHY_STAT); - val = (val >> PCIE_PHY_STAT_ACK_LOC) & 0x1; + val = dw_pcie_readl_dbi(pci, PCIE_PHY_STAT) & + PCIE_PHY_STAT_ACK; wait_counter++; if (val == exp_val) @@ -184,14 +184,14 @@ static int pcie_phy_wait_ack(struct imx6_pcie *imx6_pcie, int addr) val |= PCIE_PHY_CTRL_CAP_ADR; dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, val); - ret = pcie_phy_poll_ack(imx6_pcie, 1); + ret = pcie_phy_poll_ack(imx6_pcie, true); if (ret) return ret; val = PCIE_PHY_CTRL_DATA(addr); dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, val); - return pcie_phy_poll_ack(imx6_pcie, 0); + return pcie_phy_poll_ack(imx6_pcie, false); } /* Read from the 16-bit PCIe PHY control registers (not memory-mapped) */ @@ -209,7 +209,7 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, int *data) phy_ctl = PCIE_PHY_CTRL_RD; dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, phy_ctl); - ret = pcie_phy_poll_ack(imx6_pcie, 1); + ret = pcie_phy_poll_ack(imx6_pcie, true); if (ret) return ret; @@ -219,7 +219,7 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, int *data) /* deassert Read signal */ dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, 0x00); - return pcie_phy_poll_ack(imx6_pcie, 0); + return pcie_phy_poll_ack(imx6_pcie, false); } static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data) @@ -241,7 +241,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data) var |= PCIE_PHY_CTRL_CAP_DAT; dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var); - ret = pcie_phy_poll_ack(imx6_pcie, 1); + ret = pcie_phy_poll_ack(imx6_pcie, true); if (ret) return ret; @@ -250,7 +250,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data) dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var); /* wait for ack de-assertion */ - ret = pcie_phy_poll_ack(imx6_pcie, 0); + ret = pcie_phy_poll_ack(imx6_pcie, false); if (ret) return ret; @@ -259,7 +259,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data) dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var); /* wait for ack */ - ret = pcie_phy_poll_ack(imx6_pcie, 1); + ret = pcie_phy_poll_ack(imx6_pcie, true); if (ret) return ret; @@ -268,7 +268,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, int data) dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var); /* wait for ack de-assertion */ - ret = pcie_phy_poll_ack(imx6_pcie, 0); + ret = pcie_phy_poll_ack(imx6_pcie, false); if (ret) return ret; |