git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 64e8867b IM |
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 | ||
| 11 | int 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 | /* The below is required but why? FIXME */ | |
| 21 | sd_config_write8(cnf, shift, CNF_STOP_CLK_CTL, 0x1f); | |
| 22 | ||
| 23 | /* Power down SD bus */ | |
| 24 | sd_config_write8(cnf, shift, CNF_PWR_CTL_2, 0x00); | |
| 25 | ||
| 26 | return 0; | |
| 27 | } | |
| 28 | EXPORT_SYMBOL(tmio_core_mmc_enable); | |
| 29 | ||
| 30 | int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base) | |
| 31 | { | |
| 32 | ||
| 33 | /* Enable the MMC/SD Control registers */ | |
| 34 | sd_config_write16(cnf, shift, CNF_CMD, SDCREN); | |
| 35 | sd_config_write32(cnf, shift, CNF_CTL_BASE, base & 0xfffe); | |
| 36 | ||
| 37 | return 0; | |
| 38 | } | |
| 39 | EXPORT_SYMBOL(tmio_core_mmc_resume); | |
| 40 | ||
| 41 | void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state) | |
| 42 | { | |
| 43 | sd_config_write8(cnf, shift, CNF_PWR_CTL_2, state ? 0x02 : 0x00); | |
| 44 | } | |
| 45 | EXPORT_SYMBOL(tmio_core_mmc_pwr); | |
| 46 | ||
| 47 | void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state) | |
| 48 | { | |
| 49 | sd_config_write8(cnf, shift, CNF_SD_CLK_MODE, state ? 1 : 0); | |
| 50 | } | |
| 51 | EXPORT_SYMBOL(tmio_core_mmc_clk_div); | |
| 52 |