+#ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
+/*
+ * For deriving usb clock from 100MHz sysclk, reference divisor is set
+ * to a value of 5, which gives an intermediate value 20(100/5). The
+ * multiplication factor integer is set to 24, which when multiplied to
+ * above intermediate value provides clock for usb ip.
+ */
+void usb_single_source_clk_configure(struct ccsr_usb_phy *usb_phy)
+{
+ sys_info_t sysinfo;
+
+ get_sys_info(&sysinfo);
+ if (sysinfo.diff_sysclk == 1) {
+ clrbits_be32(&usb_phy->pllprg[1],
+ CONFIG_SYS_FSL_USB_PLLPRG2_MFI);
+ setbits_be32(&usb_phy->pllprg[1],
+ CONFIG_SYS_FSL_USB_PLLPRG2_REF_DIV_INTERNAL_CLK |
+ CONFIG_SYS_FSL_USB_PLLPRG2_MFI_INTERNAL_CLK |
+ CONFIG_SYS_FSL_USB_INTERNAL_SOC_CLK_EN);
+ }
+}
+#endif
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A006261
+void fsl_erratum_a006261_workaround(struct ccsr_usb_phy __iomem *usb_phy)
+{
+#ifdef CONFIG_SYS_FSL_USB_DUAL_PHY_ENABLE
+ u32 xcvrprg = in_be32(&usb_phy->port1.xcvrprg);
+
+ /* Increase Disconnect Threshold by 50mV */
+ xcvrprg &= ~CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_MASK |
+ INC_DCNT_THRESHOLD_50MV;
+ /* Enable programming of USB High speed Disconnect threshold */
+ xcvrprg |= CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_EN;
+ out_be32(&usb_phy->port1.xcvrprg, xcvrprg);
+
+ xcvrprg = in_be32(&usb_phy->port2.xcvrprg);
+ /* Increase Disconnect Threshold by 50mV */
+ xcvrprg &= ~CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_MASK |
+ INC_DCNT_THRESHOLD_50MV;
+ /* Enable programming of USB High speed Disconnect threshold */
+ xcvrprg |= CONFIG_SYS_FSL_USB_XCVRPRG_HS_DCNT_PROG_EN;
+ out_be32(&usb_phy->port2.xcvrprg, xcvrprg);
+#else
+
+ u32 temp = 0;
+ u32 status = in_be32(&usb_phy->status1);
+
+ u32 squelch_prog_rd_0_2 =
+ (status >> CONFIG_SYS_FSL_USB_SQUELCH_PROG_RD_0)
+ & CONFIG_SYS_FSL_USB_SQUELCH_PROG_MASK;
+
+ u32 squelch_prog_rd_3_5 =
+ (status >> CONFIG_SYS_FSL_USB_SQUELCH_PROG_RD_3)
+ & CONFIG_SYS_FSL_USB_SQUELCH_PROG_MASK;
+
+ setbits_be32(&usb_phy->config1,
+ CONFIG_SYS_FSL_USB_HS_DISCNCT_INC);
+ setbits_be32(&usb_phy->config2,
+ CONFIG_SYS_FSL_USB_RX_AUTO_CAL_RD_WR_SEL);
+
+ temp = squelch_prog_rd_0_2 << CONFIG_SYS_FSL_USB_SQUELCH_PROG_WR_0;
+ out_be32(&usb_phy->config2, in_be32(&usb_phy->config2) | temp);
+
+ temp = squelch_prog_rd_3_5 << CONFIG_SYS_FSL_USB_SQUELCH_PROG_WR_3;
+ out_be32(&usb_phy->config2, in_be32(&usb_phy->config2) | temp);
+#endif
+}
+#endif
+
+
+#if defined(CONFIG_QE) && !defined(CONFIG_U_QE)