diff options
| -rw-r--r-- | drivers/staging/dwc2/core.c | 23 | ||||
| -rw-r--r-- | drivers/staging/dwc2/hw.h | 2 |
2 files changed, 18 insertions, 7 deletions
diff --git a/drivers/staging/dwc2/core.c b/drivers/staging/dwc2/core.c index f6494df799c9..2f84c24a84ee 100644 --- a/drivers/staging/dwc2/core.c +++ b/drivers/staging/dwc2/core.c @@ -402,7 +402,9 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool select_phy, int irq) hsotg->total_fifo_size = hsotg->hwcfg3 >> GHWCFG3_DFIFO_DEPTH_SHIFT & GHWCFG3_DFIFO_DEPTH_MASK >> GHWCFG3_DFIFO_DEPTH_SHIFT; - hsotg->rx_fifo_size = readl(hsotg->regs + GRXFSIZ); + hsotg->rx_fifo_size = (readl(hsotg->regs + GRXFSIZ) & + GRXFSIZ_DEPTH_MASK) >> + GRXFSIZ_DEPTH_SHIFT; hsotg->nperio_tx_fifo_size = readl(hsotg->regs + GNPTXFSIZ) >> 16 & 0xffff; @@ -507,7 +509,7 @@ void dwc2_disable_host_interrupts(struct dwc2_hsotg *hsotg) static void dwc2_config_fifos(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *params = hsotg->core_params; - u32 nptxfsiz, hptxfsiz, dfifocfg; + u32 nptxfsiz, hptxfsiz, dfifocfg, grxfsiz; if (!params->enable_dynamic_fifo) return; @@ -520,9 +522,12 @@ static void dwc2_config_fifos(struct dwc2_hsotg *hsotg) params->host_perio_tx_fifo_size); /* Rx FIFO */ - dev_dbg(hsotg->dev, "initial grxfsiz=%08x\n", - readl(hsotg->regs + GRXFSIZ)); - writel(params->host_rx_fifo_size, hsotg->regs + GRXFSIZ); + grxfsiz = readl(hsotg->regs + GRXFSIZ); + dev_dbg(hsotg->dev, "initial grxfsiz=%08x\n", grxfsiz); + grxfsiz &= ~GRXFSIZ_DEPTH_MASK; + grxfsiz |= params->host_rx_fifo_size << + GRXFSIZ_DEPTH_SHIFT & GRXFSIZ_DEPTH_MASK; + writel(grxfsiz, hsotg->regs + GRXFSIZ); dev_dbg(hsotg->dev, "new grxfsiz=%08x\n", readl(hsotg->regs + GRXFSIZ)); /* Non-periodic Tx FIFO */ @@ -2115,7 +2120,9 @@ int dwc2_set_param_host_rx_fifo_size(struct dwc2_hsotg *hsotg, int val) int valid = 1; int retval = 0; - if (val < 16 || val > readl(hsotg->regs + GRXFSIZ)) + if (val < 16 || val > (readl(hsotg->regs + GRXFSIZ) & + GRXFSIZ_DEPTH_MASK) >> + GRXFSIZ_DEPTH_SHIFT) valid = 0; if (!valid) { @@ -2123,7 +2130,9 @@ int dwc2_set_param_host_rx_fifo_size(struct dwc2_hsotg *hsotg, int val) dev_err(hsotg->dev, "%d invalid for host_rx_fifo_size. Check HW configuration.\n", val); - val = readl(hsotg->regs + GRXFSIZ); + val = (readl(hsotg->regs + GRXFSIZ) & + GRXFSIZ_DEPTH_MASK) >> + GRXFSIZ_DEPTH_SHIFT; dev_dbg(hsotg->dev, "Setting host_rx_fifo_size to %d\n", val); retval = -EINVAL; } diff --git a/drivers/staging/dwc2/hw.h b/drivers/staging/dwc2/hw.h index 321d071be1e2..fafdc199b2b5 100644 --- a/drivers/staging/dwc2/hw.h +++ b/drivers/staging/dwc2/hw.h @@ -188,6 +188,8 @@ #define GRXSTS_EPNUM_SHIFT 0 #define GRXFSIZ HSOTG_REG(0x024) +#define GRXFSIZ_DEPTH_MASK (0xffff << 0) +#define GRXFSIZ_DEPTH_SHIFT 0 #define GNPTXFSIZ HSOTG_REG(0x028) /* Use FIFOSIZE_* constants to access this register */ |