diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/omap24xx_i2c.c | 31 | ||||
| -rw-r--r-- | drivers/i2c/omap24xx_i2c.h | 4 | ||||
| -rw-r--r-- | drivers/power/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/twl6030.c | 78 | ||||
| -rw-r--r-- | drivers/usb/musb/omap3.c | 16 | ||||
| -rw-r--r-- | drivers/usb/musb/omap3.h | 3 |
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) |