git.sur5r.net Git - u-boot/blob - board/evb64260/bootseq.txt

   1 (cpu/mpc7xxx/start.S)
   2
   3 start:
   4     b boot_cold
   5
   6 start_warm:
   7     b boot_warm
   8
   9
  10 boot_cold:
  11 boot_warm:
  12     clear bats
  13     init l2 (if enabled)
  14     init altivec (if enabled)
  15     invalidate l2 (if enabled)
  16     setup bats (from defines in config_EVB)
  17     enable_addr_trans: (if MMU enabled)
  18         enable MSR_IR and MSR_DR
  19     jump to in_flash
  20
  21 in_flash:
  22     enable l1 dcache
  23     gal_low_init: (board/evb64260/sdram_init.S)
  24         config SDRAM (CFG, TIMING, DECODE)
  25         init scratch regs (810 + 814)
  26
  27         detect DIMM0 (bank 0 only)
  28         config SDRAM_PARA0 to 256/512Mbit
  29         bl sdram_op_mode
  30         detect bank0 width
  31             write scratch reg 810
  32         config SDRAM_PARA0 with results
  33         config SDRAM_PARA1 with results
  34
  35         detect DIMM1 (bank 2 only)
  36         config SDRAM_PARA2 to 256/512Mbit
  37         detect bank2 width
  38             write scratch reg 814
  39         config SDRAM_PARA2 with results
  40         config SDRAM_PARA3 with results
  41
  42         setup device bus timings/width
  43         setup boot device timings/width
  44
  45         setup CPU_CONF (0x0)
  46         setup cpu master control register 0x160
  47         setup PCI0 TIMEOUT
  48         setup PCI1 TIMEOUT
  49         setup PCI0 BAR
  50         setup PCI1 BAR
  51
  52         setup MPP control 0-3
  53         setup GPP level control
  54         setup Serial ports multiplex
  55
  56     setup stack pointer (r1)
  57     setup GOT
  58     call cpu_init_f
  59         debug leds
  60     board_init_f: (common/board.c)
  61         board_early_init_f:
  62             remap gt regs?
  63             map PCI mem/io
  64             map device space
  65             clear out interupts
  66         init_timebase
  67         env_init
  68         serial_init
  69         console_init_f
  70         display_options
  71         initdram: (board/evb64260/evb64260.c)
  72             detect memory
  73             for each bank:
  74                 dram_size()
  75                 setup PCI slave memory mappings
  76                 setup SCS
  77         setup monitor
  78         alloc board info struct
  79         init bd struct
  80         relocate_code: (cpu/mpc7xxx/start.S)
  81             copy,got,clearbss
  82             board_init_r(bd, dest_addr) (common/board.c)
  83                 setup bd function pointers
  84                 trap_init
  85                 flash_init: (board/evb64260/flash.c)
  86                 setup bd flash info
  87                 cpu_init_r: (cpu/mpc7xxx/cpu_init.c)
  88                     nothing
  89                 mem_malloc_init
  90                 malloc_bin_reloc
  91                 spi_init (r or f)??? (CFG_ENV_IS_IN_EEPROM)
  92                 env_relocated
  93                 misc_init_r(bd): (board/evb64260/evb64260.c)
  94                     mpsc_init2