openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/arch/arm/mach-omap2/hsmmc.h

38 lines
906 B
C
Raw Normal View History

omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
/*
* MMC definitions for OMAP2
*
* 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.
*/
omap: pandora: pass wl1251 information to SDIO core Pandora has TI WL1251 attached on MMC3, which is non-standard SDIO chip. Make use MMC_QUIRK_NONSTD_SDIO to tell SDIO core about it. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Bob Copeland <me@bobcopeland.com> Cc: Kalle Valo <kvalo@adurom.com> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Kishore Kadiyala <kishore.kadiyala@ti.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11 09:01:52 +08:00
struct mmc_card;
omap: Rename hsmmc symbols to reflect independence from twl4030 hsmmc.[ch] no longer has any dependency on twl4030 and variable names should be renamed to reflect that. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-16 02:03:34 +08:00
struct omap2_hsmmc_info {
omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
u8 mmc; /* controller 1/2/3 */
omap: mmc: extended to pass host capabilities from board file wires variable is renamed, extended and this single variable to be used to pass the platform capabilities, e.g DDR mode. Also removed the hardcoded value was using as bus-width. Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-09-15 22:49:23 +08:00
u32 caps; /* 4/8 wires and any additional host
* capabilities OR'd (ref. linux/mmc/host.h) */
omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
int gpio_cd; /* or -EINVAL */
int gpio_wp; /* or -EINVAL */
ARM: OMAP2+: Split omap2_hsmmc_init() to properly support I2C GPIO pins Otherwise omap_device_build() and omap_mux related functions can't be marked as __init when twl is build as a module. If a board is using GPIO pins or regulators configured by an external chip, such as TWL PMIC on I2C bus, the board must mark those MMC controllers as deferred. Additionally both omap_hsmmc_init() and omap_hsmmc_late_init() must be called by the board. For MMC controllers using internal GPIO pins for card detect and regulators the slots don't need to be marked deferred. In this case calling omap_hsmmc_init() is sufficient. Only mark the MMC slots using gpio_cd or gpio_wd as deferred as noted by Igor Grinberg <grinberg@compulab.co.il>. Note that this patch does not change the behaviour for board-4430sdp.c board-omap4panda.c. These boards wrongly rely on the omap_hsmmc.c init function callback to configure the PMIC GPIO interrupt lines on external chip. If the PMIC interrupt lines are not configured during init, they will fail. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-21 01:43:29 +08:00
struct platform_device *pdev; /* mmc controller instance */
omap: pandora: pass wl1251 information to SDIO core Pandora has TI WL1251 attached on MMC3, which is non-standard SDIO chip. Make use MMC_QUIRK_NONSTD_SDIO to tell SDIO core about it. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Bob Copeland <me@bobcopeland.com> Cc: Kalle Valo <kvalo@adurom.com> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Kishore Kadiyala <kishore.kadiyala@ti.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11 09:01:52 +08:00
/* init some special card */
void (*init_card)(struct mmc_card *card);
omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
};
ARM: OMAP2+: use IS_ENABLED() instead of checking for built-in or module The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either built-in or as a module, use that macro instead of open coding the same. Using the macro makes the code more readable by helping abstract away some of the Kconfig built-in and module enable details. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-08-12 03:29:45 +08:00
#if IS_ENABLED(CONFIG_MMC_OMAP_HS)
omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
ARM: OMAP2+: Split omap2_hsmmc_init() to properly support I2C GPIO pins Otherwise omap_device_build() and omap_mux related functions can't be marked as __init when twl is build as a module. If a board is using GPIO pins or regulators configured by an external chip, such as TWL PMIC on I2C bus, the board must mark those MMC controllers as deferred. Additionally both omap_hsmmc_init() and omap_hsmmc_late_init() must be called by the board. For MMC controllers using internal GPIO pins for card detect and regulators the slots don't need to be marked deferred. In this case calling omap_hsmmc_init() is sufficient. Only mark the MMC slots using gpio_cd or gpio_wd as deferred as noted by Igor Grinberg <grinberg@compulab.co.il>. Note that this patch does not change the behaviour for board-4430sdp.c board-omap4panda.c. These boards wrongly rely on the omap_hsmmc.c init function callback to configure the PMIC GPIO interrupt lines on external chip. If the PMIC interrupt lines are not configured during init, they will fail. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-21 01:43:29 +08:00
void omap_hsmmc_init(struct omap2_hsmmc_info *);
void omap_hsmmc_late_init(struct omap2_hsmmc_info *);
omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
#else
ARM: OMAP2+: Split omap2_hsmmc_init() to properly support I2C GPIO pins Otherwise omap_device_build() and omap_mux related functions can't be marked as __init when twl is build as a module. If a board is using GPIO pins or regulators configured by an external chip, such as TWL PMIC on I2C bus, the board must mark those MMC controllers as deferred. Additionally both omap_hsmmc_init() and omap_hsmmc_late_init() must be called by the board. For MMC controllers using internal GPIO pins for card detect and regulators the slots don't need to be marked deferred. In this case calling omap_hsmmc_init() is sufficient. Only mark the MMC slots using gpio_cd or gpio_wd as deferred as noted by Igor Grinberg <grinberg@compulab.co.il>. Note that this patch does not change the behaviour for board-4430sdp.c board-omap4panda.c. These boards wrongly rely on the omap_hsmmc.c init function callback to configure the PMIC GPIO interrupt lines on external chip. If the PMIC interrupt lines are not configured during init, they will fail. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-21 01:43:29 +08:00
static inline void omap_hsmmc_init(struct omap2_hsmmc_info *info)
{
}
static inline void omap_hsmmc_late_init(struct omap2_hsmmc_info *info)
omap mmc: Add low-level initialization for hsmmc controller Add low-level initialization for hsmmc controller. Merged into this patch patch are various improvments and board support by Grazvydas Ignotas and David Brownell. Also change wire4 to be wires, as some newer controllers support 8 data lines. Cc: Pierre Ossman <drzeus-mmc@drzeus.cx> Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2008-12-11 09:37:17 +08:00
{
}
#endif