/* * (C) Copyright 2004-2008 * Texas Instruments, * * Author : * Sunil Kumar * Shashi Ranjan * * Derived from Beagle Board and 3430 SDP code by * Richard Woodruff * Syed Mohammed Khasim * * * 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 #include #include /****************************************************************************** * Routine: power_init_r * Description: Configure power supply *****************************************************************************/ void power_init_r(void) { unsigned char byte; #ifdef CONFIG_DRIVER_OMAP34XX_I2C i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); #endif /* * Configure OMAP3 supply voltages in power management * companion chip. */ /* set VAUX3 to 2.8V */ byte = DEV_GRP_P1; i2c_write(PWRMGT_ADDR_ID4, VAUX3_DEV_GRP, 1, &byte, 1); byte = VAUX3_VSEL_28; i2c_write(PWRMGT_ADDR_ID4, VAUX3_DEDICATED, 1, &byte, 1); /* set VPLL2 to 1.8V */ byte = DEV_GRP_ALL; i2c_write(PWRMGT_ADDR_ID4, VPLL2_DEV_GRP, 1, &byte, 1); byte = VPLL2_VSEL_18; i2c_write(PWRMGT_ADDR_ID4, VPLL2_DEDICATED, 1, &byte, 1); /* set VDAC to 1.8V */ byte = DEV_GRP_P1; i2c_write(PWRMGT_ADDR_ID4, VDAC_DEV_GRP, 1, &byte, 1); byte = VDAC_VSEL_18; i2c_write(PWRMGT_ADDR_ID4, VDAC_DEDICATED, 1, &byte, 1); /* enable LED */ byte = LEDBPWM | LEDAPWM | LEDBON | LEDAON; i2c_write(PWRMGT_ADDR_ID3, LEDEN, 1, &byte, 1); }