axolotl: enable sdcard support
@calebccff i took the patch you posted a while back, rebased it and changed GPIO mode from active low to active high.
Could you pretty please amend the commit message and pick this up for the next cycle? :)
Tested with a 32 GB sandisk sd.
Disk /dev/mmcblk0: 29.72 GiB, 31914983424 bytes, 62333952 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 8192 62333951 62325760 29.7G c W95 FAT32 (LBA)