Hi All,
> I think mmc driver is layered modules, only top block driver
> registers driver under "mmc_bus_type" bus, see
> drivers/mmc/mmc_sysfs.c and mmc_block.c. I think they are creating a
> tree of devices of same characteristics under that bus.
> I think your driver is linux/drivers/mmc/imxmmc.c where it registers a
> driver for device of type "platform_bus_type". This module will come
> under above mentioned block driver.
> Corresponding platform device is registered in
> linux/arch/arm/mach-imx/generic.c see platform_device imx_mmc_device.
Is it necessary that the firmware (may be bootloader) notify about
the MMC host to Linux? The kernel documentation (platform.txt) says :
"The firmware should notify the platform bus about devices before the
legacy drivers have had a chance to load."
Have I interpreted the above sentence correctly?
Thanks,
Midhun.
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