1/* 2 * Copyright(c) 2009 Ian Molton <spyro@f2s.com> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 9#include <linux/mfd/tmio.h> 10 11int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base) 12{ 13 /* Enable the MMC/SD Control registers */ 14 sd_config_write16(cnf, shift, CNF_CMD, SDCREN); 15 sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); 16 17 /* Disable SD power during suspend */ 18 sd_config_write8(cnf, shift, CNF_PWR_CTL_3, 0x01); 19 20 sd_config_write8(cnf, shift, CNF_STOP_CLK_CTL, 0x1f); 21 22 /* Power down SD bus */ 23 sd_config_write8(cnf, shift, CNF_PWR_CTL_2, 0x00); 24 25 return 0; 26} 27EXPORT_SYMBOL(tmio_core_mmc_enable); 28 29int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base) 30{ 31 32 /* Enable the MMC/SD Control registers */ 33 sd_config_write16(cnf, shift, CNF_CMD, SDCREN); 34 sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); 35 36 return 0; 37} 38EXPORT_SYMBOL(tmio_core_mmc_resume); 39 40void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state) 41{ 42 sd_config_write8(cnf, shift, CNF_PWR_CTL_2, state ? 0x02 : 0x00); 43} 44EXPORT_SYMBOL(tmio_core_mmc_pwr); 45 46void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state) 47{ 48 sd_config_write8(cnf, shift, CNF_SD_CLK_MODE, state ? 1 : 0); 49} 50EXPORT_SYMBOL(tmio_core_mmc_clk_div); 51