2 * Copyright(c) 2009 Ian Molton <spyro@f2s.com>
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.
9 #include <linux/export.h>
10 #include <linux/mfd/tmio.h>
12 int tmio_core_mmc_enable(void __iomem
*cnf
, int shift
, unsigned long base
)
14 /* Enable the MMC/SD Control registers */
15 sd_config_write16(cnf
, shift
, CNF_CMD
, SDCREN
);
16 sd_config_write32(cnf
, shift
, CNF_CTL_BASE
, base
& 0xfffe);
18 /* Disable SD power during suspend */
19 sd_config_write8(cnf
, shift
, CNF_PWR_CTL_3
, 0x01);
21 /* The below is required but why? FIXME */
22 sd_config_write8(cnf
, shift
, CNF_STOP_CLK_CTL
, 0x1f);
24 /* Power down SD bus */
25 sd_config_write8(cnf
, shift
, CNF_PWR_CTL_2
, 0x00);
29 EXPORT_SYMBOL(tmio_core_mmc_enable
);
31 int tmio_core_mmc_resume(void __iomem
*cnf
, int shift
, unsigned long base
)
34 /* Enable the MMC/SD Control registers */
35 sd_config_write16(cnf
, shift
, CNF_CMD
, SDCREN
);
36 sd_config_write32(cnf
, shift
, CNF_CTL_BASE
, base
& 0xfffe);
40 EXPORT_SYMBOL(tmio_core_mmc_resume
);
42 void tmio_core_mmc_pwr(void __iomem
*cnf
, int shift
, int state
)
44 sd_config_write8(cnf
, shift
, CNF_PWR_CTL_2
, state
? 0x02 : 0x00);
46 EXPORT_SYMBOL(tmio_core_mmc_pwr
);
48 void tmio_core_mmc_clk_div(void __iomem
*cnf
, int shift
, int state
)
50 sd_config_write8(cnf
, shift
, CNF_SD_CLK_MODE
, state
? 1 : 0);
52 EXPORT_SYMBOL(tmio_core_mmc_clk_div
);