1 /* 2 * (C) Copyright 2009 Faraday Technology 3 * Po-Yu Chuang <ratbert@faraday-tech.com> 4 * 5 * Copyright (C) 2010 Andes Technology Corporation 6 * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com> 7 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 */ 23 24 #include <common.h> 25 #include <asm/io.h> 26 #include "ftpmu010.h" 27 28 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 29 30 void ftpmu010_32768osc_enable(void) 31 { 32 unsigned int oscc; 33 34 /* enable the 32768Hz oscillator */ 35 oscc = readl(&pmu->OSCC); 36 oscc &= ~(FTPMU010_OSCC_OSCL_OFF | FTPMU010_OSCC_OSCL_TRI); 37 writel(oscc, &pmu->OSCC); 38 39 /* wait until ready */ 40 while (!(readl(&pmu->OSCC) & FTPMU010_OSCC_OSCL_STABLE)) 41 ; 42 43 /* select 32768Hz oscillator */ 44 oscc = readl(&pmu->OSCC); 45 oscc |= FTPMU010_OSCC_OSCL_RTCLSEL; 46 writel(oscc, &pmu->OSCC); 47 } 48 49 void ftpmu010_dlldis_disable(void) 50 { 51 unsigned int pdllcr0; 52 53 pdllcr0 = readl(&pmu->PDLLCR0); 54 pdllcr0 |= FTPMU010_PDLLCR0_DLLDIS; 55 writel(pdllcr0, &pmu->PDLLCR0); 56 } 57 58 void ftpmu010_sdram_clk_disable(unsigned int cr0) 59 { 60 unsigned int pdllcr0; 61 62 pdllcr0 = readl(&pmu->PDLLCR0); 63 pdllcr0 |= FTPMU010_PDLLCR0_HCLKOUTDIS(cr0); 64 writel(pdllcr0, &pmu->PDLLCR0); 65 } 66