litex> spisdcardboot
SD Card via SPI Initialising
Reading MBR
Partition 1 Information: Active=0x00, Type=0x0e, LBAStart=0x00000001
Partition 1 is FAT16

Read FAT16 Boot Sector
  Jump Code:              0xeb 0x3c 0x90
  OEM Code:               [mkfs.fat]
  Sector Size:            512
  Sectors Per Cluster:    64
  Reserved Sectors:       64
  Number of Fats:         2
  Root Dir Entries:       1024
  Total Sectors Short:    0
  Media Descriptor:       0xf8
  Fat Size Sectors:       256
  Sectors Per Track:      32
  Number of Heads:        64
  Hidden Sectors:         1
  Total Sectors Long:     -1305935744
  Drive Number:           0x4f
  Current Head:           0x20
  Boot Signature:         0x4e
  Volume ID:              0x20454d41
  Volume Label:           [AT16   �[]
  Volume Label:           [|�"�t
                                V�]
  Boot Sector Signature:  0x87fe

sdCardFatTable = 0x87fe0000  Reading Fat16 Table (256 Sectors Long)

sdCardFat16RootDir = 0x87fd7000  Reading Root Directory (72 Sectors Long)


Root Directory
  File 0 [Ab o o t. . ] @ Cluster 0 for -1 bytes
  File 1 [    BIN .   ] @ Cluster 131 for 1862300737 bytes
  File 912 [ S t o r. e ] @ Cluster 0 for -1 bytes
  File 913 [E-V2    . @ ] @ Cluster 0 for 1946178533 bytes
  File 916 [. p l i .s  ] @ Cluster 3840 for 6621696 bytes
  File 917 [n f i   .g u] @ Cluster 41185 for 1349734515 bytes

Reading File [BOOT.BIN] into 0x80000000 : File not found
SD Card SPI boot failed