Stephen Warren 6fe7845a98 ARM: rpi_b: detect board revision ... Detect the board revision early during boot, and print the decoded model name. Eventually, this information can be used for tasks such as: - Allowing/preventing USB device mode; some models have a USB device on- board so only host mode makes sense. Others connect the SoC directly to the USB connector, so device-mode might make sense. - The on-board USB hub/Ethernet requires different GPIOs to enable it, although luckily the default appears to be fine so far. - The compute module contains an on-board eMMC device, so we could store the environment there. Other models use an SD card and so don't support saving the environment (unless we store it in a file on the FAT boot partition...) Set $fdtfile based on this information. At present, the mainline Linux kernel doesn't contain a separate DTB for most models, but I hope that will change soon. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>		2014-12-08 09:35:42 -05:00
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gpio.h	dm: rpi: Convert GPIO driver to driver model	2014-10-22 10:36:57 -06:00
mbox.h	ARM: rpi_b: detect board revision	2014-12-08 09:35:42 -05:00
sdhci.h	mmc: add bcm2835 driver	2013-03-20 15:31:25 +01:00
timer.h	ARM: bcm2835: fix get_timer() to return ms	2013-04-04 08:14:54 +02:00
wdog.h	ARM: add basic support for the Broadcom BCM2835 SoC	2012-09-01 14:58:21 +02:00