/* * Copyright(c) 2009 Ian Molton <spyro@f2s.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/export.h> #include <linux/mfd/tmio.h> #define CNF_CMD 0x04 #define CNF_CTL_BASE 0x10 #define CNF_INT_PIN 0x3d #define CNF_STOP_CLK_CTL 0x40 #define CNF_GCLK_CTL 0x41 #define CNF_SD_CLK_MODE 0x42 #define CNF_PIN_STATUS 0x44 #define CNF_PWR_CTL_1 0x48 #define CNF_PWR_CTL_2 0x49 #define CNF_PWR_CTL_3 0x4a #define CNF_CARD_DETECT_MODE 0x4c #define CNF_SD_SLOT 0x50 #define CNF_EXT_GCLK_CTL_1 0xf0 #define CNF_EXT_GCLK_CTL_2 0xf1 #define CNF_EXT_GCLK_CTL_3 0xf9 #define CNF_SD_LED_EN_1 0xfa #define CNF_SD_LED_EN_2 0xfe #define SDCREN 0x2 /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/ int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base) { /* Enable the MMC/SD Control registers */ sd_config_write16(cnf, shift, CNF_CMD, SDCREN); sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); /* Disable SD power during suspend */ sd_config_write8(cnf, shift, CNF_PWR_CTL_3, 0x01); /* The below is required but why? FIXME */ sd_config_write8(cnf, shift, CNF_STOP_CLK_CTL, 0x1f); /* Power down SD bus */ sd_config_write8(cnf, shift, CNF_PWR_CTL_2, 0x00); return 0; } EXPORT_SYMBOL(tmio_core_mmc_enable); int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base) { /* Enable the MMC/SD Control registers */ sd_config_write16(cnf, shift, CNF_CMD, SDCREN); sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); return 0; } EXPORT_SYMBOL(tmio_core_mmc_resume); void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state) { sd_config_write8(cnf, shift, CNF_PWR_CTL_2, state ? 0x02 : 0x00); } EXPORT_SYMBOL(tmio_core_mmc_pwr); void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state) { sd_config_write8(cnf, shift, CNF_SD_CLK_MODE, state ? 1 : 0); } EXPORT_SYMBOL(tmio_core_mmc_clk_div);