@@ -1135,6 +1135,9 @@ The following options need to be configured:
May be defined to allow interrupt polling
instead of using asynchronous interrupts
+ CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the
+ txfilltuning field in the EHCI controller on reset.
+
- USB Device:
Define the below if you wish to use the USB console.
Once firmware is rebuilt from a serial console issue the
@@ -259,6 +259,13 @@ static int ehci_reset(void)
#endif
ehci_writel(reg_ptr, tmp);
}
+
+#ifdef CONFIG_USB_EHCI_TXFIFO_THRESH
+ cmd = ehci_readl(&hcor->or_txfilltuning);
+ cmd &= ~TXFIFO_THRESH(0x3f);
+ cmd |= TXFIFO_THRESH(CONFIG_USB_EHCI_TXFIFO_THRESH);
+ ehci_writel(&hcor->or_txfilltuning, cmd);
+#endif
out:
return ret;
}
@@ -80,7 +80,11 @@ struct ehci_hcor {
uint32_t or_ctrldssegment;
uint32_t or_periodiclistbase;
uint32_t or_asynclistaddr;
- uint32_t _reserved_[9];
+ uint32_t _reserved_0_;
+ uint32_t or_burstsize;
+ uint32_t or_txfilltuning;
+#define TXFIFO_THRESH(p) ((p & 0x3f) << 16)
+ uint32_t _reserved_1_[6];
uint32_t or_configflag;
#define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
uint32_t or_portsc[CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS];