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omap mmc: Add better MMC low-level init

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This will simplify the MMC low-level init, and make it more
flexible to add support for a newer MMC controller in the
following patches.

The patch rearranges platform data and gets rid of slot vs
controller confusion in the old data structures. Also fix
device id numbering in the clock code.

Some code snippets are based on an earlier patch by
Russell King <linux@arm.linux.org.uk>.

Cc: Pierre Ossman <drzeus-mmc@drzeus.cx>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren
2008-12-10 17:37:16 -08:00
parent 652bcd8f72
commit d88746652b
16 changed files with 530 additions and 284 deletions
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22
arch/arm/plat-omap/include/mach/board.h
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@ -16,7 +16,6 @@
/* Different peripheral ids */
#define OMAP_TAG_CLOCK 0x4f01
#define OMAP_TAG_MMC 0x4f02
#define OMAP_TAG_SERIAL_CONSOLE 0x4f03
#define OMAP_TAG_USB 0x4f04
#define OMAP_TAG_LCD 0x4f05
@ -35,27 +34,6 @@ struct omap_clock_config {
u8 system_clock_type;
};
struct omap_mmc_conf {
unsigned enabled:1;
/* nomux means "standard" muxing is wrong on this board, and that
* board-specific code handled it before common init logic.
*/
unsigned nomux:1;
/* switch pin can be for card detect (default) or card cover */
unsigned cover:1;
/* 4 wire signaling is optional, and is only used for SD/SDIO */
unsigned wire4:1;
/* use the internal clock */
unsigned internal_clock:1;
s16 power_pin;
s16 switch_pin;
s16 wp_pin;
};
struct omap_mmc_config {
struct omap_mmc_conf mmc[2];
};
struct omap_serial_console_config {
u8 console_uart;
u32 console_speed;