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authorWolfgang Denk <wd@denx.de>2010-08-10 22:20:51 +0200
committerWolfgang Denk <wd@denx.de>2010-08-10 22:20:51 +0200
commit9844d027b52cc89264f6bf7686e26d9dc50134fd (patch)
treee1e89eeab5e44dc91fe3a4a3a497f1d1e178f925 /drivers
parent201532a69cf7e7a84bff354fdab45947425d22b4 (diff)
parent1b03eede4fed47c6af7df84b0f7b621ff3e3bb40 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-ti
Diffstat (limited to 'drivers')
-rw-r--r--drivers/i2c/omap24xx_i2c.c31
-rw-r--r--drivers/i2c/omap24xx_i2c.h4
-rw-r--r--drivers/power/Makefile1
-rw-r--r--drivers/power/twl6030.c78
-rw-r--r--drivers/usb/musb/omap3.c16
-rw-r--r--drivers/usb/musb/omap3.h3
6 files changed, 122 insertions, 11 deletions
diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
index 3256133..7c98f15 100644
--- a/drivers/i2c/omap24xx_i2c.c
+++ b/drivers/i2c/omap24xx_i2c.c
@@ -27,6 +27,8 @@
#include "omap24xx_i2c.h"
+#define I2C_TIMEOUT 10
+
static void wait_for_bb (void);
static u16 wait_for_pin (void);
static void flush_fifo(void);
@@ -41,6 +43,7 @@ void i2c_init (int speed, int slaveadd)
int psc, fsscll, fssclh;
int hsscll = 0, hssclh = 0;
u32 scll, sclh;
+ int timeout = I2C_TIMEOUT;
/* Only handle standard, fast and high speeds */
if ((speed != OMAP_I2C_STANDARD) &&
@@ -102,15 +105,24 @@ void i2c_init (int speed, int slaveadd)
sclh = (unsigned int)fssclh;
}
- writew(0x2, &i2c_base->sysc); /* for ES2 after soft reset */
- udelay(1000);
- writew(0x0, &i2c_base->sysc); /* will probably self clear but */
-
if (readw (&i2c_base->con) & I2C_CON_EN) {
writew (0, &i2c_base->con);
udelay (50000);
}
+ writew(0x2, &i2c_base->sysc); /* for ES2 after soft reset */
+ udelay(1000);
+
+ writew(I2C_CON_EN, &i2c_base->con);
+ while (!(readw(&i2c_base->syss) & I2C_SYSS_RDONE) && timeout--) {
+ if (timeout <= 0) {
+ printf("ERROR: Timeout in soft-reset\n");
+ return;
+ }
+ udelay(1000);
+ }
+
+ writew(0, &i2c_base->con);
writew(psc, &i2c_base->psc);
writew(scll, &i2c_base->scll);
writew(sclh, &i2c_base->sclh);
@@ -159,15 +171,14 @@ static int i2c_read_byte (u8 devaddr, u8 regoffset, u8 * value)
}
if (!i2c_error) {
- /* free bus, otherwise we can't use a combined transction */
- writew (0, &i2c_base->con);
- while (readw (&i2c_base->stat) || (readw (&i2c_base->con) & I2C_CON_MST)) {
+ writew (I2C_CON_EN, &i2c_base->con);
+ while (readw(&i2c_base->stat) &
+ (I2C_STAT_XRDY | I2C_STAT_ARDY)) {
udelay (10000);
/* Have to clear pending interrupt to clear I2C_STAT */
writew (0xFFFF, &i2c_base->stat);
}
- wait_for_bb ();
/* set slave address */
writew (devaddr, &i2c_base->sa);
/* read one byte from slave */
@@ -191,8 +202,8 @@ static int i2c_read_byte (u8 devaddr, u8 regoffset, u8 * value)
if (!i2c_error) {
writew (I2C_CON_EN, &i2c_base->con);
- while (readw (&i2c_base->stat)
- || (readw (&i2c_base->con) & I2C_CON_MST)) {
+ while (readw (&i2c_base->stat) &
+ (I2C_STAT_RRDY | I2C_STAT_ARDY)) {
udelay (10000);
writew (0xFFFF, &i2c_base->stat);
}
diff --git a/drivers/i2c/omap24xx_i2c.h b/drivers/i2c/omap24xx_i2c.h
index 92a3416..650e33a 100644
--- a/drivers/i2c/omap24xx_i2c.h
+++ b/drivers/i2c/omap24xx_i2c.h
@@ -85,6 +85,10 @@
#define I2C_SYSTEST_SDA_I (1 << 1) /* SDA line sense input value */
#define I2C_SYSTEST_SDA_O (1 << 0) /* SDA line drive output value */
+/* I2C System Status Register (I2C_SYSS): */
+
+#define I2C_SYSS_RDONE (1 << 0) /* Internel reset monitoring */
+
#define I2C_SCLL_SCLL 0
#define I2C_SCLL_SCLL_M 0xFF
#define I2C_SCLL_HSSCLL 8
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index dd06514..db53173 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libpower.a
COBJS-$(CONFIG_TWL4030_POWER) += twl4030.o
+COBJS-$(CONFIG_TWL6030_POWER) += twl6030.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c
new file mode 100644
index 0000000..cf1da6b
--- /dev/null
+++ b/drivers/power/twl6030.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+#include <config.h>
+#ifdef CONFIG_TWL6030_POWER
+
+#include <twl6030.h>
+
+/* Functions to read and write from TWL6030 */
+static inline int twl6030_i2c_write_u8(u8 chip_no, u8 val, u8 reg)
+{
+ return i2c_write(chip_no, reg, 1, &val, 1);
+}
+
+static inline int twl6030_i2c_read_u8(u8 chip_no, u8 *val, u8 reg)
+{
+ return i2c_read(chip_no, reg, 1, val, 1);
+}
+
+void twl6030_start_usb_charging(void)
+{
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VICHRG_1500,
+ CHARGERUSB_VICHRG);
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CIN_LIMIT_NONE,
+ CHARGERUSB_CINLIMIT);
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MBAT_TEMP,
+ CONTROLLER_INT_MASK);
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MASK_MCHARGERUSB_THMREG,
+ CHARGERUSB_INT_MASK);
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VOREG_4P0,
+ CHARGERUSB_VOREG);
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CTRL2_VITERM_100,
+ CHARGERUSB_CTRL2);
+ /* Enable USB charging */
+ twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1_EN_CHARGER,
+ CONTROLLER_CTRL1);
+ return;
+}
+
+void twl6030_init_battery_charging(void)
+{
+ twl6030_start_usb_charging();
+ return;
+}
+
+void twl6030_usb_device_settings()
+{
+ u8 data = 0;
+
+ /* Select APP Group and set state to ON */
+ twl6030_i2c_write_u8(TWL6030_CHIP_PM, 0x21, VUSB_CFG_STATE);
+
+ twl6030_i2c_read_u8(TWL6030_CHIP_PM, &data, MISC2);
+ data |= 0x10;
+
+ /* Select the input supply for VBUS regulator */
+ twl6030_i2c_write_u8(TWL6030_CHIP_PM, data, MISC2);
+}
+#endif
diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c
index a983552..c7876ed 100644
--- a/drivers/usb/musb/omap3.c
+++ b/drivers/usb/musb/omap3.c
@@ -31,6 +31,7 @@
*/
#include <twl4030.h>
+#include <twl6030.h>
#include "omap3.h"
static int platform_needs_initialization = 1;
@@ -65,7 +66,12 @@ static struct omap3_otg_regs *otg;
#define OMAP3_OTG_SYSSTATUS_RESETDONE 0x0001
+/* OMAP4430 has an internal PHY, use it */
+#ifdef CONFIG_OMAP4430
+#define OMAP3_OTG_INTERFSEL_OMAP 0x0000
+#else
#define OMAP3_OTG_INTERFSEL_OMAP 0x0001
+#endif
#define OMAP3_OTG_FORCESTDBY_STANDBY 0x0001
@@ -105,6 +111,11 @@ int musb_platform_init(void)
goto end;
}
#endif
+
+#ifdef CONFIG_TWL6030_POWER
+ twl6030_usb_device_settings();
+#endif
+
otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE;
/* Set OTG to always be on */
@@ -122,6 +133,11 @@ int musb_platform_init(void)
#ifdef CONFIG_OMAP3_EVM
musb_cfg.extvbus = omap3_evm_need_extvbus();
#endif
+
+#ifdef CONFIG_OMAP4430
+ u32 *usbotghs_control = (u32 *)(CTRL_BASE + 0x33C);
+ *usbotghs_control = 0x15;
+#endif
platform_needs_initialization = 0;
}
diff --git a/drivers/usb/musb/omap3.h b/drivers/usb/musb/omap3.h
index 2886d7e..b2acdf4 100644
--- a/drivers/usb/musb/omap3.h
+++ b/drivers/usb/musb/omap3.h
@@ -31,10 +31,11 @@
#ifndef _MUSB_OMAP3_H_
#define _MUSB_OMAP3_H_
+#include <asm/arch/cpu.h>
#include "musb_core.h"
/* Base address of MUSB registers */
-#define MENTOR_USB0_BASE (OMAP34XX_CORE_L4_IO_BASE + 0xAB000)
+#define MENTOR_USB0_BASE MUSB_BASE
/* Base address of OTG registers */
#define OMAP3_OTG_BASE (MENTOR_USB0_BASE + 0x400)