board: ls1043ardb: Modify pin-muxing code for USB and QE-HDLC

QE-HDLC and USB multi-use the pins, modify the pin-muxing code
for them, when set "hwconfig=qe-hdlc" in uboot, assign the pins
to QE-HDLC, if not, assgin it to USB

Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

board/freescale/ls1043ardb/ls1043ardb.c

@@ -114,18 +114,24 @@ int config_board_mux(void)
 	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
 	u32 usb_pwrfault;
 
+	if (hwconfig("qe-hdlc")) {
+		out_be32(&scfg->rcwpmuxcr0,
+			 (in_be32(&scfg->rcwpmuxcr0) & ~0xff00) | 0x6600);
+		printf("Assign to qe-hdlc clk, rcwpmuxcr0=%x\n",
+		       in_be32(&scfg->rcwpmuxcr0));
+	} else {
 #ifdef CONFIG_HAS_FSL_XHCI_USB
-	out_be32(&scfg->rcwpmuxcr0, 0x3333);
-	out_be32(&scfg->usbdrvvbus_selcr, SCFG_USBDRVVBUS_SELCR_USB1);
-	usb_pwrfault = (SCFG_USBPWRFAULT_DEDICATED <<
-			SCFG_USBPWRFAULT_USB3_SHIFT) |
-			(SCFG_USBPWRFAULT_DEDICATED <<
-			SCFG_USBPWRFAULT_USB2_SHIFT) |
-			(SCFG_USBPWRFAULT_SHARED <<
-			 SCFG_USBPWRFAULT_USB1_SHIFT);
-	out_be32(&scfg->usbpwrfault_selcr, usb_pwrfault);
+		out_be32(&scfg->rcwpmuxcr0, 0x3333);
+		out_be32(&scfg->usbdrvvbus_selcr, SCFG_USBDRVVBUS_SELCR_USB1);
+		usb_pwrfault = (SCFG_USBPWRFAULT_DEDICATED <<
+				SCFG_USBPWRFAULT_USB3_SHIFT) |
+				(SCFG_USBPWRFAULT_DEDICATED <<
+				SCFG_USBPWRFAULT_USB2_SHIFT) |
+				(SCFG_USBPWRFAULT_SHARED <<
+				 SCFG_USBPWRFAULT_USB1_SHIFT);
+		out_be32(&scfg->usbpwrfault_selcr, usb_pwrfault);
 #endif
-
+	}
 	return 0;
 }
 
@@ -152,6 +158,16 @@ int misc_init_r(void)
 }
 #endif
 
+void fdt_del_qe(void *blob)
+{
+	int nodeoff = 0;
+
+	while ((nodeoff = fdt_node_offset_by_compatible(blob, 0,
+				"fsl,qe")) >= 0) {
+		fdt_del_node(blob, nodeoff);
+	}
+}
+
 int ft_board_setup(void *blob, bd_t *bd)
 {
 	u64 base[CONFIG_NR_DRAM_BANKS];
@@ -169,6 +185,23 @@ int ft_board_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_SYS_DPAA_FMAN
 	fdt_fixup_fman_ethernet(blob);
 #endif
+
+	/*
+	 * qe-hdlc and usb multi-use the pins,
+	 * when set hwconfig to qe-hdlc, delete usb node.
+	 */
+	if (hwconfig("qe-hdlc"))
+#ifdef CONFIG_HAS_FSL_XHCI_USB
+		fdt_del_node_and_alias(blob, "usb1");
+#endif
+	/*
+	 * qe just support qe-uart and qe-hdlc,
+	 * if qe-uart and qe-hdlc are not set in hwconfig,
+	 * delete qe node.
+	 */
+	if (!hwconfig("qe-uart") && !hwconfig("qe-hdlc"))
+		fdt_del_qe(blob);
+
 	return 0;
 }