5 Feb
2013
5 Feb
'13
9:51 p.m.
On 02/05/2013 01:41 PM, Tom Warren wrote: ...
I left the Paz00 tegra_mmc_init(3) call the same as originally (w/o the width and GPIO params, of course). The device numbering is kind of arbitrary - if there are only 2 MMC devices present, I'd expect dev 0 to be eMMC and dev 1 to be SD (again, like my T20 reference board, Seaboard). I don't see that Paz uses mmc anywhere in its config files for a boot script - does it have to have mmc dev 3 be SD? or would dev 1 work? Note that the tegra20-common-post.h file that all T20 boards inherit uses dev 0 and dev 1.
This board currently uses U-Boot MMC device ID 0 for the eMMC and U-Boot MMC device ID 1 for the SD card slot. The U-Boot device ID's aren't directly related to the Tegra HW instance IDs.