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include
linux
platform_data
pxa_sdhci.h
Go to the documentation of this file.
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/*
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* include/linux/platform_data/pxa_sdhci.h
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*
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* Copyright 2010 Marvell
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* Zhangfei Gao <zhangfei.gao@marvell.com>
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*
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* PXA Platform - SDHCI platform data definitions
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _PXA_SDHCI_H_
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#define _PXA_SDHCI_H_
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/* pxa specific flag */
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/* Require clock free running */
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#define PXA_FLAG_ENABLE_CLOCK_GATING (1<<0)
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/* card always wired to host, like on-chip emmc */
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#define PXA_FLAG_CARD_PERMANENT (1<<1)
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/* Board design supports 8-bit data on SD/SDIO BUS */
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#define PXA_FLAG_SD_8_BIT_CAPABLE_SLOT (1<<2)
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/*
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* struct pxa_sdhci_platdata() - Platform device data for PXA SDHCI
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* @flags: flags for platform requirement
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* @clk_delay_cycles:
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* mmp2: each step is roughly 100ps, 5bits width
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* pxa910: each step is 1ns, 4bits width
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* @clk_delay_sel: select clk_delay, used on pxa910
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* 0: choose feedback clk
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* 1: choose feedback clk + delay value
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* 2: choose internal clk
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* @clk_delay_enable: enable clk_delay or not, used on pxa910
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* @ext_cd_gpio: gpio pin used for external CD line
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* @ext_cd_gpio_invert: invert values for external CD gpio line
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* @max_speed: the maximum speed supported
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* @host_caps: Standard MMC host capabilities bit field.
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* @quirks: quirks of platfrom
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* @pm_caps: pm_caps of platfrom
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*/
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struct
sdhci_pxa_platdata
{
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unsigned
int
flags
;
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unsigned
int
clk_delay_cycles
;
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unsigned
int
clk_delay_sel
;
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bool
clk_delay_enable
;
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unsigned
int
ext_cd_gpio
;
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bool
ext_cd_gpio_invert
;
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unsigned
int
max_speed
;
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unsigned
int
host_caps
;
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unsigned
int
host_caps2
;
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unsigned
int
quirks
;
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unsigned
int
pm_caps
;
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};
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struct
sdhci_pxa
{
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u8
clk_enable
;
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u8
power_mode
;
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};
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#endif
/* _PXA_SDHCI_H_ */
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