From 2cf1a895603e538de0276033db8334f51758e881 Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Wed, 17 Nov 2004 20:14:43 +0000 Subject: Ondio: adjustments for models with mask bit 2 == 0 (different MMC clock select circuitry) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5421 a1c6a512-1295-4272-9138-f99709370657 --- firmware/drivers/ata_mmc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'firmware/drivers') diff --git a/firmware/drivers/ata_mmc.c b/firmware/drivers/ata_mmc.c index f927a1bdeb..897f59b8be 100644 --- a/firmware/drivers/ata_mmc.c +++ b/firmware/drivers/ata_mmc.c @@ -141,10 +141,12 @@ static void mmc_tick(void); void mmc_select_clock(int card_no) { - if (card_no == 0) /* internal */ - or_b(0x10, &PADRH); /* set clock gate PA12 CHECKME: mask? */ - else /* external */ - and_b(~0x10, &PADRH); /* clear clock gate PA12 CHECKME: mask?*/ + /* set clock gate for external card / reset for internal card if the + * MMC clock polarity bit is 0, vice versa if it is 1 */ + if ((card_no != 0) ^ (read_hw_mask() & MMC_CLOCK_POLARITY)) + or_b(0x10, &PADRH); /* set clock gate PA12 */ + else + and_b(~0x10, &PADRH); /* clear clock gate PA12 */ } static int select_card(int card_no) -- cgit v1.2.3