diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/misc/twl4030_led.c | 52 | ||||
| -rw-r--r-- | drivers/power/twl4030.c | 55 |
3 files changed, 107 insertions, 1 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index ea2bf87..f6df60f 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -30,6 +30,7 @@ COBJS-$(CONFIG_DS4510) += ds4510.o COBJS-$(CONFIG_FSL_LAW) += fsl_law.o COBJS-$(CONFIG_NS87308) += ns87308.o COBJS-$(CONFIG_STATUS_LED) += status_led.o +COBJS-$(CONFIG_TWL4030_LED) += twl4030_led.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/misc/twl4030_led.c b/drivers/misc/twl4030_led.c new file mode 100644 index 0000000..bfdafef --- /dev/null +++ b/drivers/misc/twl4030_led.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix at windriver.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 + * + * twl4030_led_init is from cpu/omap3/common.c, power_init_r + * + * (C) Copyright 2004-2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Sunil Kumar <sunilsaini05 at gmail.com> + * Shashi Ranjan <shashiranjanmca05 at gmail.com> + * + * Derived from Beagle Board and 3430 SDP code by + * Richard Woodruff <r-woodruff2 at ti.com> + * Syed Mohammed Khasim <khasim at ti.com> + * + */ + +#include <twl4030.h> + +#define LEDAON (0x1 << 0) +#define LEDBON (0x1 << 1) +#define LEDAPWM (0x1 << 4) +#define LEDBPWM (0x1 << 5) + +void twl4030_led_init(void) +{ + unsigned char byte; + + /* enable LED */ + byte = LEDBPWM | LEDAPWM | LEDBON | LEDAON; + + twl4030_i2c_write_u8(TWL4030_CHIP_LED, byte, + TWL4030_LED_LEDEN); + +} diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c index 70d4eeb..c93b51f 100644 --- a/drivers/power/twl4030.c +++ b/drivers/power/twl4030.c @@ -17,9 +17,24 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * - * Derived from code on omapzoom, git://git.omapzoom.com/repo/u-boot.git + * twl4030_power_reset_init is derived from code on omapzoom, + * git://git.omapzoom.com/repo/u-boot.git * * Copyright (C) 2007-2009 Texas Instruments, Inc. + * + * twl4030_power_init is from cpu/omap3/common.c, power_init_r + * + * (C) Copyright 2004-2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Sunil Kumar <sunilsaini05 at gmail.com> + * Shashi Ranjan <shashiranjanmca05 at gmail.com> + * + * Derived from Beagle Board and 3430 SDP code by + * Richard Woodruff <r-woodruff2 at ti.com> + * Syed Mohammed Khasim <khasim at ti.com> + * */ #include <twl4030.h> @@ -45,3 +60,41 @@ void twl4030_power_reset_init(void) } +/* + * Power Init + */ +#define DEV_GRP_P1 0x20 +#define VAUX3_VSEL_28 0x03 +#define DEV_GRP_ALL 0xE0 +#define VPLL2_VSEL_18 0x05 +#define VDAC_VSEL_18 0x03 + +void twl4030_power_init(void) +{ + unsigned char byte; + + /* set VAUX3 to 2.8V */ + byte = DEV_GRP_P1; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VAUX3_DEV_GRP); + byte = VAUX3_VSEL_28; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VAUX3_DEDICATED); + + /* set VPLL2 to 1.8V */ + byte = DEV_GRP_ALL; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VPLL2_DEV_GRP); + byte = VPLL2_VSEL_18; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VPLL2_DEDICATED); + + /* set VDAC to 1.8V */ + byte = DEV_GRP_P1; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VDAC_DEV_GRP); + byte = VDAC_VSEL_18; + twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, byte, + TWL4030_PM_RECEIVER_VDAC_DEDICATED); +} + |