upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/omap3/common/power.c

74 lines
2.2 KiB

/*
* (C) Copyright 2004-2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Sunil Kumar <sunilsaini05@gmail.com>
* Shashi Ranjan <shashiranjanmca05@gmail.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <khasim@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 <common.h>
#include <asm/arch/sys_proto.h>
#include <i2c.h>
/******************************************************************************
* 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);
}