diff options
| author | Pavel Pisa <ppisa@pikron.com> | 2006-04-02 19:27:07 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-04-02 19:27:07 +0100 |
| commit | 56ca904053ab14ba4067a72b69a5edf246771209 (patch) | |
| tree | 23dc10e74bb4ce3d2a2ce5a9d8da1c5f5feda94d /arch | |
| parent | 65dbf34393f7b3d20e993d9651a825df0fa5376b (diff) | |
[ARM] 3457/1: i.MX: SD/MMC support for i.MX/MX1
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-imx/generic.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c index 37613ad6836..9d8331be2b5 100644 --- a/arch/arm/mach-imx/generic.c +++ b/arch/arm/mach-imx/generic.c @@ -33,6 +33,7 @@ #include <asm/arch/imx-regs.h> #include <asm/mach/map.h> +#include <asm/arch/mmc.h> void imx_gpio_mode(int gpio_mode) { @@ -175,13 +176,25 @@ static struct resource imx_mmc_resources[] = { }, }; +static u64 imxmmmc_dmamask = 0xffffffffUL; + static struct platform_device imx_mmc_device = { .name = "imx-mmc", .id = 0, + .dev = { + .dma_mask = &imxmmmc_dmamask, + .coherent_dma_mask = 0xffffffff, + }, .num_resources = ARRAY_SIZE(imx_mmc_resources), .resource = imx_mmc_resources, }; +void __init imx_set_mmc_info(struct imxmmc_platform_data *info) +{ + imx_mmc_device.dev.platform_data = info; +} +EXPORT_SYMBOL(imx_set_mmc_info); + static struct resource imx_uart1_resources[] = { [0] = { .start = 0x00206000, |