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516a824222
SDIO Simplified Specification V2.00 states that it is strongly recommended that the host executes either a power reset or issues a CMD52 (I/O Reset) to re-initialize an I/O only card or the I/O portion of a combo card. Additionally, the CMD52 must be issued first because it cannot be issued after a CMD0. With this patch the Nintendo Wii SDIO-based WLAN card is detected after a system reset, without requiring a complete system powercycle. Signed-off-by: Albert Herranz <albert_herranz@yahoo.es> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
24 lines
747 B
C
24 lines
747 B
C
/*
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* linux/drivers/mmc/sdio_ops.c
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*
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* Copyright 2006-2007 Pierre Ossman
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#ifndef _MMC_SDIO_OPS_H
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#define _MMC_SDIO_OPS_H
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int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
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int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
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unsigned addr, u8 in, u8* out);
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int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
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unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz);
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int sdio_reset(struct mmc_host *host);
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#endif
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