mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
64e8867ba8
This patch abstracts out the CNF area code from tmio_mmc which is not present in all hardware that can use this driver. This is required so that we can support non-toshiba based hardware. ASIC3 support by Philipp Zabel Signed-off-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
|
|
* 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/mfd/tmio.h>
|
|
|
|
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);
|
|
|