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  1. Dec 15, 2015
    • York Sun's avatar
      Reserve secure memory · e8149522
      York Sun authored
      
      Secure memory is at the end of memory, separated and reserved
      from OS, tracked by gd->secure_ram. Secure memory can host
      MMU tables, security monitor, etc. This is different from PRAM
      used to reserve private memory. PRAM offers memory at the top
      of u-boot memory, not necessarily the real end of memory for
      systems with very large DDR. Using the end of memory simplifies
      MMU setup and avoid memory fragmentation.
      
      "bdinfo" command shows gd->secure_ram value if this memory is
      marked as secured.
      
      Signed-off-by: default avatarYork Sun <yorksun@freescale.com>
      e8149522
  2. Dec 14, 2015
  3. Dec 11, 2015
    • Peng Fan's avatar
      imx: mx7dsabresd: Add QSPI support · 53cc647d
      Peng Fan authored
      
      Support qspi flashes for mx7dsabresd
      1. introduce pin mux settings
      2. enable qspi clock
      3. introduce related macro definitions
      
      Default QSPI is not enabled, since we need hardware rework to use QSPI,
      see SPF-28590, page 9:
      "
      QSPI signals are muxed with EPDC_D[7:0]
      When using QSPI: de-populate R388-R391, R396-R399
      populate R392-R395, R299, R300
      "
      
      After hardware rework, define CONFIG_FSL_QSPI in mx7dsabresd.h. qspi
      flashes can be deteced and read/erase/write. Log info:
      "
      => sf probe
      SF: Detected MX25L51235F with page size 256 Bytes, erase size 64 KiB, total 64 MiB
      => sf read 0x80000000 0 0x4000000
      device 0 whole chip
      SF: 67108864 bytes @ 0x0 Read: OK
      => sf erase 0 0x4000000
      SF: 67108864 bytes @ 0x0 Erased: OK
      => sf write 0x80000000 0 0x4000000
      device 0 whole chip
      SF: 67108864 bytes @ 0x0 Written: OK
      "
      
      Cc: Fabio Estevam <fabio.estevam@freescale.com>
      Cc: Adrian Alonso <aalonso@freescale.com>
      Reviewed-by: default avatarStefano Babic <sbabic@denx.de>
      Reviewed-by: default avatarJagan Teki <jteki@openedev.com>
      Signed-off-by: default avatarPeng Fan <Peng.Fan@freescale.com>
      53cc647d
  4. Dec 10, 2015
  5. Dec 09, 2015
  6. Dec 07, 2015
  7. Dec 06, 2015
  8. Dec 05, 2015
  9. Dec 03, 2015
  10. Dec 01, 2015
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