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Blackfin: bf527-ezkit/bf548-ezkit: add musb board specific initialization

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Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Cliff Cai 2009-12-08 07:25:57 +00:00 • committed by Mike Frysinger
parent 581d92eefc
commit 9442c4a133
2 changed files with 29 additions and 0 deletions
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13
board/bf527-ezkit/bf527-ezkit.c
View file

@ -68,3 +68,16 @@ int misc_init_r(void)
return 0; return 0;
} }
#ifdef CONFIG_USB_BLACKFIN
void board_musb_init(void)
{
/*
* BF527 EZ-KITs require PG13 to be high for HOST mode
*/
bfin_write_PORTG_FER(bfin_read_PORTG_FER() & ~PG13);
bfin_write_PORTGIO_DIR(bfin_read_PORTGIO_DIR() | PG13);
bfin_write_PORTGIO_SET(PG13);
SSYNC();
}
#endif

16
board/bf548-ezkit/bf548-ezkit.c
View file

@ -86,3 +86,19 @@ int board_mmc_init(bd_t *bis)
return bfin_mmc_init(bis); return bfin_mmc_init(bis);
} }
#endif #endif
#ifdef CONFIG_USB_BLACKFIN
void board_musb_init(void)
{
/*
* Rev 1.0 BF549 EZ-KITs require PE7 to be high for both device
* and OTG host modes, while rev 1.1 and greater require PE7 to
* be low for device mode and high for host mode. We set it high
* here because we are in host mode.
*/
bfin_write_PORTE_FER(bfin_read_PORTE_FER() & ~PE7);
bfin_write_PORTE_DIR_SET(PE7);
bfin_write_PORTE_SET(PE7);
SSYNC();
}
#endif