Commit f8ea15f7 authored by Macpaul Lin's avatar Macpaul Lin Committed by Wolfgang Denk
Browse files

ftpmu010: support faraday ftpmu010 driver



Faraday's ftpmu010 is a power managemnet unit which support cpu
sleep and frequency scaling. It has been integrated into many SoC.

This patch also move ftpmu010 to a proper place for later enhancement.
Signed-off-by: default avatarMacpaul Lin <macpaul@andestech.com>
parent e009cdeb
......@@ -25,6 +25,7 @@ include $(TOPDIR)/config.mk
LIB := $(obj)libpower.o
COBJS-$(CONFIG_FTPMU010_POWER) += ftpmu010.o
COBJS-$(CONFIG_TWL4030_POWER) += twl4030.o
COBJS-$(CONFIG_TWL6030_POWER) += twl6030.o
......
/*
* (C) Copyright 2009 Faraday Technology
* Po-Yu Chuang <ratbert@faraday-tech.com>
*
* Copyright (C) 2010 Andes Technology Corporation
* Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
* Macpaul Lin, Andes Technology Corporation <macpaul@andestech.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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <common.h>
#include <asm/io.h>
#include "ftpmu010.h"
static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE;
void ftpmu010_32768osc_enable(void)
{
unsigned int oscc;
/* enable the 32768Hz oscillator */
oscc = readl(&pmu->OSCC);
oscc &= ~(FTPMU010_OSCC_OSCL_OFF | FTPMU010_OSCC_OSCL_TRI);
writel(oscc, &pmu->OSCC);
/* wait until ready */
while (!(readl(&pmu->OSCC) & FTPMU010_OSCC_OSCL_STABLE))
;
/* select 32768Hz oscillator */
oscc = readl(&pmu->OSCC);
oscc |= FTPMU010_OSCC_OSCL_RTCLSEL;
writel(oscc, &pmu->OSCC);
}
void ftpmu010_dlldis_disable(void)
{
unsigned int pdllcr0;
pdllcr0 = readl(&pmu->PDLLCR0);
pdllcr0 |= FTPMU010_PDLLCR0_DLLDIS;
writel(pdllcr0, &pmu->PDLLCR0);
}
void ftpmu010_sdram_clk_disable(unsigned int cr0)
{
unsigned int pdllcr0;
pdllcr0 = readl(&pmu->PDLLCR0);
pdllcr0 |= FTPMU010_PDLLCR0_HCLKOUTDIS(cr0);
writel(pdllcr0, &pmu->PDLLCR0);
}
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