1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2009 Faraday Technology 4 * Po-Yu Chuang <ratbert@faraday-tech.com> 5 * 6 * Copyright (C) 2010 Andes Technology Corporation 7 * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com> 8 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> 9 */ 10 11 #include <common.h> 12 #include <asm/io.h> 13 #include <faraday/ftpmu010.h> 14 15 /* OSCC: OSC Control Register */ 16 void ftpmu010_32768osc_enable(void) 17 { 18 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 19 unsigned int oscc; 20 21 /* enable the 32768Hz oscillator */ 22 oscc = readl(&pmu->OSCC); 23 oscc &= ~(FTPMU010_OSCC_OSCL_OFF | FTPMU010_OSCC_OSCL_TRI); 24 writel(oscc, &pmu->OSCC); 25 26 /* wait until ready */ 27 while (!(readl(&pmu->OSCC) & FTPMU010_OSCC_OSCL_STABLE)) 28 ; 29 30 /* select 32768Hz oscillator */ 31 oscc = readl(&pmu->OSCC); 32 oscc |= FTPMU010_OSCC_OSCL_RTCLSEL; 33 writel(oscc, &pmu->OSCC); 34 } 35 36 /* MFPSR: Multi-Function Port Setting Register */ 37 void ftpmu010_mfpsr_select_dev(unsigned int dev) 38 { 39 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 40 unsigned int mfpsr; 41 42 mfpsr = readl(&pmu->MFPSR); 43 mfpsr |= dev; 44 writel(mfpsr, &pmu->MFPSR); 45 } 46 47 void ftpmu010_mfpsr_diselect_dev(unsigned int dev) 48 { 49 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 50 unsigned int mfpsr; 51 52 mfpsr = readl(&pmu->MFPSR); 53 mfpsr &= ~dev; 54 writel(mfpsr, &pmu->MFPSR); 55 } 56 57 /* PDLLCR0: PLL/DLL Control Register 0 */ 58 void ftpmu010_dlldis_disable(void) 59 { 60 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 61 unsigned int pdllcr0; 62 63 pdllcr0 = readl(&pmu->PDLLCR0); 64 pdllcr0 |= FTPMU010_PDLLCR0_DLLDIS; 65 writel(pdllcr0, &pmu->PDLLCR0); 66 } 67 68 void ftpmu010_sdram_clk_disable(unsigned int cr0) 69 { 70 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 71 unsigned int pdllcr0; 72 73 pdllcr0 = readl(&pmu->PDLLCR0); 74 pdllcr0 |= FTPMU010_PDLLCR0_HCLKOUTDIS(cr0); 75 writel(pdllcr0, &pmu->PDLLCR0); 76 } 77 78 /* SDRAMHTC: SDRAM Signal Hold Time Control */ 79 void ftpmu010_sdramhtc_set(unsigned int val) 80 { 81 static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE; 82 unsigned int sdramhtc; 83 84 sdramhtc = readl(&pmu->SDRAMHTC); 85 sdramhtc |= val; 86 writel(sdramhtc, &pmu->SDRAMHTC); 87 } 88