diff options
Diffstat (limited to 'drivers/usb/host/xhci-rcar.c')
| -rw-r--r-- | drivers/usb/host/xhci-rcar.c | 44 |
1 files changed, 30 insertions, 14 deletions
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index ff0d1b44ea58..623100e9385e 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -14,10 +14,17 @@ #include <linux/usb/phy.h> #include "xhci.h" +#include "xhci-plat.h" #include "xhci-rcar.h" -#define FIRMWARE_NAME "r8a779x_usb3_v1.dlmem" -MODULE_FIRMWARE(FIRMWARE_NAME); +/* +* - The V2 firmware is possible to use on R-Car Gen2. However, the V2 causes +* performance degradation. So, this driver continues to use the V1 if R-Car +* Gen2. +* - The V1 firmware is impossible to use on R-Car Gen3. +*/ +MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V1); +MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V2); /*** Register Offset ***/ #define RCAR_USB3_INT_ENA 0x224 /* Interrupt Enable */ @@ -56,6 +63,19 @@ MODULE_FIRMWARE(FIRMWARE_NAME); #define RCAR_USB3_RX_POL_VAL BIT(21) #define RCAR_USB3_TX_POL_VAL BIT(4) +static void xhci_rcar_start_gen2(struct usb_hcd *hcd) +{ + /* LCLK Select */ + writel(RCAR_USB3_LCLK_ENA_VAL, hcd->regs + RCAR_USB3_LCLK); + /* USB3.0 Configuration */ + writel(RCAR_USB3_CONF1_VAL, hcd->regs + RCAR_USB3_CONF1); + writel(RCAR_USB3_CONF2_VAL, hcd->regs + RCAR_USB3_CONF2); + writel(RCAR_USB3_CONF3_VAL, hcd->regs + RCAR_USB3_CONF3); + /* USB3.0 Polarity */ + writel(RCAR_USB3_RX_POL_VAL, hcd->regs + RCAR_USB3_RX_POL); + writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL); +} + void xhci_rcar_start(struct usb_hcd *hcd) { u32 temp; @@ -65,27 +85,23 @@ void xhci_rcar_start(struct usb_hcd *hcd) temp = readl(hcd->regs + RCAR_USB3_INT_ENA); temp |= RCAR_USB3_INT_ENA_VAL; writel(temp, hcd->regs + RCAR_USB3_INT_ENA); - /* LCLK Select */ - writel(RCAR_USB3_LCLK_ENA_VAL, hcd->regs + RCAR_USB3_LCLK); - /* USB3.0 Configuration */ - writel(RCAR_USB3_CONF1_VAL, hcd->regs + RCAR_USB3_CONF1); - writel(RCAR_USB3_CONF2_VAL, hcd->regs + RCAR_USB3_CONF2); - writel(RCAR_USB3_CONF3_VAL, hcd->regs + RCAR_USB3_CONF3); - /* USB3.0 Polarity */ - writel(RCAR_USB3_RX_POL_VAL, hcd->regs + RCAR_USB3_RX_POL); - writel(RCAR_USB3_TX_POL_VAL, hcd->regs + RCAR_USB3_TX_POL); + if (xhci_plat_type_is(hcd, XHCI_PLAT_TYPE_RENESAS_RCAR_GEN2)) + xhci_rcar_start_gen2(hcd); } } -static int xhci_rcar_download_firmware(struct device *dev, void __iomem *regs) +static int xhci_rcar_download_firmware(struct usb_hcd *hcd) { + struct device *dev = hcd->self.controller; + void __iomem *regs = hcd->regs; + struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); const struct firmware *fw; int retval, index, j, time; int timeout = 10000; u32 data, val, temp; /* request R-Car USB3.0 firmware */ - retval = request_firmware(&fw, FIRMWARE_NAME, dev); + retval = request_firmware(&fw, priv->firmware_name, dev); if (retval) return retval; @@ -144,5 +160,5 @@ int xhci_rcar_init_quirk(struct usb_hcd *hcd) if (!hcd->regs) return 0; - return xhci_rcar_download_firmware(hcd->self.controller, hcd->regs); + return xhci_rcar_download_firmware(hcd); } |