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This adds a simple driver for the BCM2835's SD controller. Workarounds are implemented for: * Register writes can't be too close to each-other in time, or they will be lost. * Register accesses must all be 32-bit, so implement custom accessors. This code was extracted from: git://github.com/gonzoua/u-boot-pi.git master which was created by Oleksandr Tymoshenko. Portions of the code there were obviously based on the Linux kernel at: git://github.com/raspberrypi/linux.git rpi-3.6.y commit f5b930b "Main bcm2708 linux port" signed-off-by Dom Cobley. swarren changed the following for upstream: * Removed hack udelay()s in bcm2835_sdhci_raw_writel(); setting SDHCI_QUIRK_WAIT_SEND_CMD appears to solve the issues. * Remove register logging from read*/write* functions. * Sort out confusion with min/max_freq values passed to add_sdhci(). * Use more descriptive variable names and calculations in IO accessors. * Simplified and commented twoticks_delay calculation. * checkpatch fixes. Cc: Andy Fleming <afleming@gmail.com> Signed-off-by: Oleksandr Tymoshenko <gonzo@bluezbox.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Andy Fleming <afleming@gmail.com> |
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| .. | ||
| arm_pl180_mmci.c | ||
| arm_pl180_mmci.h | ||
| bcm2835_sdhci.c | ||
| bfin_sdh.c | ||
| davinci_mmc.c | ||
| dw_mmc.c | ||
| exynos_dw_mmc.c | ||
| fsl_esdhc.c | ||
| ftsdc010_esdhc.c | ||
| gen_atmel_mci.c | ||
| Makefile | ||
| mmc.c | ||
| mmc_spi.c | ||
| mv_sdhci.c | ||
| mxcmmc.c | ||
| mxsmmc.c | ||
| omap_hsmmc.c | ||
| pxa_mmc.h | ||
| pxa_mmc_gen.c | ||
| s5p_sdhci.c | ||
| sdhci.c | ||
| sh_mmcif.c | ||
| sh_mmcif.h | ||
| spl_mmc.c | ||
| tegra_mmc.c | ||