[U-Boot] [PATCH v2 2/5] usb:gadget:s5p Enabling the USB Gadget framework at GONI
Lukasz Majewski
l.majewski at samsung.com
Wed Jul 13 16:29:49 CEST 2011
This commit is enabling support for USB Gadgets support
at GONI reference target
Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Minkyu Kang <mk7.kang at samsung.com>
Cc: Remy Bohmer <linux at bohmer.net>
---
arch/arm/include/asm/arch-s5pc1xx/cpu.h | 4 ++
arch/arm/include/asm/arch-s5pc1xx/hs_otg.h | 32 ++++++++++++
board/samsung/goni/goni.c | 71 ++++++++++++++++++++++++++++
include/configs/s5p_goni.h | 4 ++
4 files changed, 111 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/asm/arch-s5pc1xx/hs_otg.h
diff --git a/arch/arm/include/asm/arch-s5pc1xx/cpu.h b/arch/arm/include/asm/arch-s5pc1xx/cpu.h
index e74959f..e699fc4 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/cpu.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/cpu.h
@@ -55,6 +55,10 @@
#define S5PC110_VIC1_BASE 0xF2100000
#define S5PC110_VIC2_BASE 0xF2200000
#define S5PC110_VIC3_BASE 0xF2300000
+#define S5PC110_OTG_BASE 0xEC000000
+#define S5PC110_PHY_BASE 0xEC100000
+#define S5PC110_USB_PHY_CONTROL 0xE010E80C
+
#ifndef __ASSEMBLY__
#include <asm/io.h>
diff --git a/arch/arm/include/asm/arch-s5pc1xx/hs_otg.h b/arch/arm/include/asm/arch-s5pc1xx/hs_otg.h
new file mode 100644
index 0000000..d68db04
--- /dev/null
+++ b/arch/arm/include/asm/arch-s5pc1xx/hs_otg.h
@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2009 SAMSUNG Electronics
+ * Minkyu Kang <mk7.kang at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef __ASM_ARCH_HSOTG_H_
+#define __ASM_ARCH_HSOTG_H_
+
+#ifndef __ASSEMBLY__
+struct s3c_plat_otg_data {
+ int (*phy_control)(int on);
+ unsigned int regs_phy;
+ unsigned int regs_otg;
+};
+
+#endif /* __ASSEMBLY__ */
+#endif
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index dbbd7ed..2935bd7 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -26,6 +26,8 @@
#include <common.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
+#include <asm/arch/hs_otg.h>
+#include <asm/arch/cpu.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -149,3 +151,72 @@ inline void gpio_set_value(int nr, int value)
s5p_gpio_get_pin(nr), value);
}
#endif
+
+#ifdef CONFIG_USB_GADGET
+
+static int max8998_probe(void)
+{
+ unsigned char addr = 0xCC >> 1;
+
+ i2c_set_bus_num(I2C_PMIC);
+
+ if (i2c_probe(addr)) {
+ puts("Can't found max8998\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+#define MAX8998_REG_ONOFF1 0x11
+#define MAX8998_REG_ONOFF2 0x12
+#define MAX8998_LDO3 (1 << 2)
+#define MAX8998_LDO8 (1 << 5)
+
+enum { LDO_OFF, LDO_ON };
+
+inline void max8998_set_ldo(unsigned int reg, unsigned char ldo, int on)
+{
+ unsigned char addr;
+ unsigned char val[2];
+
+ addr = 0xCC >> 1; /* max8998 */
+
+ i2c_read(addr, reg, 1, val, 1);
+ if (on)
+ val[0] |= ldo;
+ else
+ val[0] &= ~ldo;
+
+ i2c_write(addr, reg, 1, val, 1);
+ printf("MAX ONOFF1: val[0]:0x%x val[1]:0x%x\n", val[0], val[1]);
+}
+
+static int s5pc1xx_phy_control(int on)
+{
+ static int status;
+
+ if (max8998_probe())
+ return -1;
+
+ if (on && !status) {
+ max8998_set_ldo(MAX8998_REG_ONOFF1, MAX8998_LDO3, LDO_ON);
+ max8998_set_ldo(MAX8998_REG_ONOFF2, MAX8998_LDO8, LDO_ON);
+ status = 1;
+ } else if (!on && status) {
+ max8998_set_ldo(MAX8998_REG_ONOFF1, MAX8998_LDO3, LDO_OFF);
+ max8998_set_ldo(MAX8998_REG_ONOFF2, MAX8998_LDO8, LDO_OFF);
+ status = 0;
+ }
+ udelay(10000);
+
+ return 0;
+}
+
+
+struct s3c_plat_otg_data s5pc110_otg_data = {
+ .phy_control = s5pc1xx_phy_control,
+ .regs_phy = S5PC110_PHY_BASE,
+ .regs_otg = S5PC110_OTG_BASE,
+};
+#endif
diff --git a/include/configs/s5p_goni.h b/include/configs/s5p_goni.h
index ee87927..a47d0b4 100644
--- a/include/configs/s5p_goni.h
+++ b/include/configs/s5p_goni.h
@@ -237,4 +237,8 @@
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_I2C_MULTI_BUS
#define CONFIG_SYS_MAX_I2C_BUS 7
+#define CONFIG_USB_GADGET 1
+#define CONFIG_USB_GADGET_S3C_UDC_OTG 1
+#define CONFIG_USB_GADGET_DUALSPEED 1
+
#endif /* __CONFIG_H */
--
1.7.2.3
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