56ca904053
Patch from Pavel Pisa This patch adds support of i.MX/MX1 SD/MMC controller. It has been significantly redesigned from the original Sascha Hauer's version to support scatter-gather DMA, to conform to latest Pierre Ossman's and Russell King's MMC-SD Linux 2.6.x infrastructure. The handling of all events has been moved to the softirq context and is designed with no busy-looping in mind. Unfortunately some controller bugs has to be overcome by limited looping about 2-20 usec but these are observed only for initial card recognition phase. There are still some missing/missed IRQs problems under heavy load. Help of somebody with access to the full SDHC design information is probably necessary. Regenerated against 2.6.16-git-060402 to solve clash with other patches. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
12 lines
221 B
C
12 lines
221 B
C
#ifndef ASMARM_ARCH_MMC_H
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#define ASMARM_ARCH_MMC_H
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#include <linux/mmc/protocol.h>
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struct imxmmc_platform_data {
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int (*card_present)(void);
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};
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extern void imx_set_mmc_info(struct imxmmc_platform_data *info);
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#endif
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