From ab8efbb283a6c9cf8cb1d4a26e040c924417e7c7 Mon Sep 17 00:00:00 2001
From: Piotr Wilczek <p.wilczek@samsung.com>
Date: Thu, 21 Nov 2013 15:46:45 +0100
Subject: [PATCH] trats2: enable ums support on Trats2

This patch adds support for USB and enables 'ums' command on Trats2 board.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---
 board/samsung/trats2/trats2.c | 92 +++++++++++++++++++++++++++++++++++
 include/configs/trats2.h      | 18 +++++++
 2 files changed, 110 insertions(+)

diff --git a/board/samsung/trats2/trats2.c b/board/samsung/trats2/trats2.c
index d44d825e80..b932a60a80 100644
--- a/board/samsung/trats2/trats2.c
+++ b/board/samsung/trats2/trats2.c
@@ -25,6 +25,9 @@
 #include <power/max77693_fg.h>
 #include <libtizen.h>
 #include <errno.h>
+#include <usb.h>
+#include <usb/s3c_udc.h>
+#include <usb_mass_storage.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -308,6 +311,95 @@ int board_mmc_init(bd_t *bis)
 	return err0 & err2;
 }
 
+#ifdef CONFIG_USB_GADGET
+static int s5pc210_phy_control(int on)
+{
+	int ret = 0;
+	unsigned int val;
+	struct pmic *p, *p_pmic, *p_muic;
+
+	p_pmic = pmic_get("MAX77686_PMIC");
+	if (!p_pmic)
+		return -ENODEV;
+
+	if (pmic_probe(p_pmic))
+		return -1;
+
+	p_muic = pmic_get("MAX77693_MUIC");
+	if (!p_muic)
+		return -ENODEV;
+
+	if (pmic_probe(p_muic))
+		return -1;
+
+	if (on) {
+		ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
+		if (ret)
+			return -1;
+
+		p = pmic_get("MAX77693_PMIC");
+		if (!p)
+			return -ENODEV;
+
+		if (pmic_probe(p))
+			return -1;
+
+		/* SAFEOUT */
+		ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
+		if (ret)
+			return -1;
+
+		val |= MAX77693_ENSAFEOUT1;
+		ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
+		if (ret)
+			return -1;
+
+		/* PATH: USB */
+		ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
+			MAX77693_MUIC_CTRL1_DN1DP2);
+
+	} else {
+		ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
+		if (ret)
+			return -1;
+
+		/* PATH: UART */
+		ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
+			MAX77693_MUIC_CTRL1_UT1UR2);
+	}
+
+	if (ret)
+		return -1;
+
+	return 0;
+}
+
+struct s3c_plat_otg_data s5pc210_otg_data = {
+	.phy_control	= s5pc210_phy_control,
+	.regs_phy	= EXYNOS4X12_USBPHY_BASE,
+	.regs_otg	= EXYNOS4X12_USBOTG_BASE,
+	.usb_phy_ctrl	= EXYNOS4X12_USBPHY_CONTROL,
+	.usb_flags	= PHY0_SLEEP,
+};
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	debug("USB_udc_probe\n");
+	return s3c_udc_probe(&s5pc210_otg_data);
+}
+
+#ifdef CONFIG_USB_CABLE_CHECK
+int usb_cable_connected(void)
+{
+	struct pmic *muic = pmic_get("MAX77693_MUIC");
+	if (!muic)
+		return 0;
+
+	return !!muic->chrg->chrg_type(muic);
+}
+#endif
+#endif
+
 static int pmic_init_max77686(void)
 {
 	struct pmic *p = pmic_get("MAX77686_PMIC");
diff --git a/include/configs/trats2.h b/include/configs/trats2.h
index 0e93836c0c..66b1c95b4a 100644
--- a/include/configs/trats2.h
+++ b/include/configs/trats2.h
@@ -113,6 +113,16 @@
 #define CONFIG_CMD_EXT4
 #define CONFIG_CMD_EXT4_WRITE
 
+/* USB Composite download gadget - g_dnl */
+#define CONFIG_USBDOWNLOAD_GADGET
+#define CONFIG_DFU_FUNCTION
+#define CONFIG_DFU_MMC
+
+/* USB Samsung's IDs */
+#define CONFIG_G_DNL_VENDOR_NUM 0x04E8
+#define CONFIG_G_DNL_PRODUCT_NUM 0x6601
+#define CONFIG_G_DNL_MANUFACTURER "Samsung"
+
 /* To use the TFTPBOOT over USB, Please enable the CONFIG_CMD_NET */
 #undef CONFIG_CMD_NET
 
@@ -293,6 +303,11 @@
 #define CONFIG_POWER_MUIC_MAX77693
 #define CONFIG_POWER_FG_MAX77693
 #define CONFIG_POWER_BATTERY_TRATS2
+#define CONFIG_USB_GADGET
+#define CONFIG_USB_GADGET_S3C_UDC_OTG
+#define CONFIG_USB_GADGET_DUALSPEED
+#define CONFIG_USB_GADGET_VBUS_DRAW	2
+#define CONFIG_USB_CABLE_CHECK
 
 /* LCD */
 #define CONFIG_EXYNOS_FB
@@ -305,6 +320,9 @@
 #define CONFIG_VIDEO_BMP_GZIP
 #define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE ((500 * 250 * 4) + (1 << 12))
 
+#define CONFIG_CMD_USB_MASS_STORAGE
+#define CONFIG_USB_GADGET_MASS_STORAGE
+
 /* Pass open firmware flat tree */
 #define CONFIG_OF_LIBFDT    1