[U-Boot] [PATCH 3/4] arm: exynos5420: Adding support for board_usb_{init|cleanup}() functions

[Lukasz Majewski]

From: Joonyoung Shim <jy0922.shim at samsung.com>

Low level code to support proper usb operation has been added to smdk5420.c
board file.

Signed-off-by: Joonyoung Shim <jy0922.shim at samsung.com>
Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
---
 board/samsung/smdk5420/smdk5420.c | 41 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/board/samsung/smdk5420/smdk5420.c b/board/samsung/smdk5420/smdk5420.c
index 1aca9fa..ecd9b97 100644
--- a/board/samsung/smdk5420/smdk5420.c
+++ b/board/samsung/smdk5420/smdk5420.c
@@ -19,6 +19,12 @@
 #include <asm/arch/system.h>
 #include <asm/arch/dp_info.h>
 #include <power/tps65090_pmic.h>
+#include <usb.h>
+#include <dwc3-uboot.h>
+#include <mmc.h>
+#include <asm/arch/power.h>
+#include <samsung-usb-phy-uboot.h>
+#include <asm/arch/xhci-exynos.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -90,3 +96,38 @@ int board_get_revision(void)
 {
 	return 0;
 }
+
+static struct dwc3_device dwc3_device_data = {
+	.maximum_speed = USB_SPEED_SUPER,
+	.base = 0x12400000,
+	.dr_mode = USB_DR_MODE_PERIPHERAL,
+	.index = 0,
+};
+
+int usb_gadget_handle_interrupts(void)
+{
+	dwc3_uboot_handle_interrupt(0);
+	return 0;
+}
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	struct exynos_usb3_phy *phy = (struct exynos_usb3_phy *)
+		samsung_get_base_usb3_phy();
+
+	if (!phy) {
+		error("usb3 phy not supported");
+		return -ENODEV;
+	}
+
+	set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_EN);
+	exynos5_usb3_phy_init(phy);
+
+	return dwc3_uboot_init(&dwc3_device_data);
+}
+
+int board_usb_cleanup(int index, enum usb_init_type init)
+{
+	dwc3_uboot_exit(index);
+	return 0;
+}
-- 
2.0.0.rc2