diff options
Diffstat (limited to 'drivers/staging/dwc2/hcd.c')
| -rw-r--r-- | drivers/staging/dwc2/hcd.c | 80 |
1 files changed, 9 insertions, 71 deletions
diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c index 9a1e062..da0d35c 100644 --- a/drivers/staging/dwc2/hcd.c +++ b/drivers/staging/dwc2/hcd.c @@ -2678,7 +2678,7 @@ static void dwc2_hcd_free(struct dwc2_hsotg *hsotg) writel(ahbcfg, hsotg->regs + GAHBCFG); writel(0, hsotg->regs + GINTMSK); - if (hsotg->snpsid >= DWC2_CORE_REV_3_00a) { + if (hsotg->hw_params.snpsid >= DWC2_CORE_REV_3_00a) { dctl = readl(hsotg->regs + DCTL); dctl |= DCTL_SFTDISCON; writel(dctl, hsotg->regs + DCTL); @@ -2730,80 +2730,22 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq, { struct usb_hcd *hcd; struct dwc2_host_chan *channel; - u32 gusbcfg, hcfg; + u32 hcfg; int i, num_channels; - int retval = -ENOMEM; + int retval; dev_dbg(hsotg->dev, "DWC OTG HCD INIT\n"); - /* - * Attempt to ensure this device is really a DWC_otg Controller. - * Read and verify the GSNPSID register contents. The value should be - * 0x45f42xxx or 0x45f43xxx, which corresponds to either "OT2" or "OT3", - * as in "OTG version 2.xx" or "OTG version 3.xx". - */ - hsotg->snpsid = readl(hsotg->regs + GSNPSID); - if ((hsotg->snpsid & 0xfffff000) != 0x4f542000 && - (hsotg->snpsid & 0xfffff000) != 0x4f543000) { - dev_err(hsotg->dev, "Bad value for GSNPSID: 0x%08x\n", - hsotg->snpsid); - retval = -ENODEV; - goto error1; - } + /* Detect config values from hardware */ + retval = dwc2_get_hwparams(hsotg); - /* - * Store the contents of the hardware configuration registers here for - * easy access later - */ - hsotg->hwcfg1 = readl(hsotg->regs + GHWCFG1); - hsotg->hwcfg2 = readl(hsotg->regs + GHWCFG2); - hsotg->hwcfg3 = readl(hsotg->regs + GHWCFG3); - hsotg->hwcfg4 = readl(hsotg->regs + GHWCFG4); - - dev_dbg(hsotg->dev, "hwcfg1=%08x\n", hsotg->hwcfg1); - dev_dbg(hsotg->dev, "hwcfg2=%08x\n", hsotg->hwcfg2); - dev_dbg(hsotg->dev, "hwcfg3=%08x\n", hsotg->hwcfg3); - dev_dbg(hsotg->dev, "hwcfg4=%08x\n", hsotg->hwcfg4); - - /* Force host mode to get HPTXFSIZ exact power on value */ - gusbcfg = readl(hsotg->regs + GUSBCFG); - gusbcfg |= GUSBCFG_FORCEHOSTMODE; - writel(gusbcfg, hsotg->regs + GUSBCFG); - usleep_range(100000, 150000); - - hsotg->hptxfsiz = readl(hsotg->regs + HPTXFSIZ); - dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hsotg->hptxfsiz); - gusbcfg = readl(hsotg->regs + GUSBCFG); - gusbcfg &= ~GUSBCFG_FORCEHOSTMODE; - writel(gusbcfg, hsotg->regs + GUSBCFG); - usleep_range(100000, 150000); + if (retval) + return retval; + + retval = -ENOMEM; hcfg = readl(hsotg->regs + HCFG); dev_dbg(hsotg->dev, "hcfg=%08x\n", hcfg); - dev_dbg(hsotg->dev, "op_mode=%0x\n", - hsotg->hwcfg2 >> GHWCFG2_OP_MODE_SHIFT & - GHWCFG2_OP_MODE_MASK >> GHWCFG2_OP_MODE_SHIFT); - dev_dbg(hsotg->dev, "arch=%0x\n", - hsotg->hwcfg2 >> GHWCFG2_ARCHITECTURE_SHIFT & - GHWCFG2_ARCHITECTURE_MASK >> GHWCFG2_ARCHITECTURE_SHIFT); - dev_dbg(hsotg->dev, "num_dev_ep=%d\n", - hsotg->hwcfg2 >> GHWCFG2_NUM_DEV_EP_SHIFT & - GHWCFG2_NUM_DEV_EP_MASK >> GHWCFG2_NUM_DEV_EP_SHIFT); - dev_dbg(hsotg->dev, "max_host_chan=%d\n", - hsotg->hwcfg2 >> GHWCFG2_NUM_HOST_CHAN_SHIFT & - GHWCFG2_NUM_HOST_CHAN_MASK >> GHWCFG2_NUM_HOST_CHAN_SHIFT); - dev_dbg(hsotg->dev, "nonperio_tx_q_depth=0x%0x\n", - hsotg->hwcfg2 >> GHWCFG2_NONPERIO_TX_Q_DEPTH_SHIFT & - GHWCFG2_NONPERIO_TX_Q_DEPTH_MASK >> - GHWCFG2_NONPERIO_TX_Q_DEPTH_SHIFT); - dev_dbg(hsotg->dev, "host_perio_tx_q_depth=0x%0x\n", - hsotg->hwcfg2 >> GHWCFG2_HOST_PERIO_TX_Q_DEPTH_SHIFT & - GHWCFG2_HOST_PERIO_TX_Q_DEPTH_MASK >> - GHWCFG2_HOST_PERIO_TX_Q_DEPTH_SHIFT); - dev_dbg(hsotg->dev, "dev_token_q_depth=0x%0x\n", - hsotg->hwcfg2 >> GHWCFG2_DEV_TOKEN_Q_DEPTH_SHIFT & - GHWCFG3_XFER_SIZE_CNTR_WIDTH_MASK >> - GHWCFG3_XFER_SIZE_CNTR_WIDTH_SHIFT); #ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS hsotg->frame_num_array = kzalloc(sizeof(*hsotg->frame_num_array) * @@ -2877,10 +2819,6 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq, } INIT_WORK(&hsotg->wf_otg, dwc2_conn_id_status_change); - dev_dbg(hsotg->dev, "Core Release: %1x.%1x%1x%1x\n", - hsotg->snpsid >> 12 & 0xf, hsotg->snpsid >> 8 & 0xf, - hsotg->snpsid >> 4 & 0xf, hsotg->snpsid & 0xf); - setup_timer(&hsotg->wkp_timer, dwc2_wakeup_detected, (unsigned long)hsotg); |