LXR uboot/doc/README.sh7753evb

   1========================================
   2Renesas SH7753 EVB board
   3========================================
   4
   5This board specification:
   6=========================
   7
   8The SH7753 EVB (board config name:sh7753evb) has the following device:
   9
  10 - SH7753 (SH-4A)
  11 - DDR3-SDRAM 512MB
  12 - SPI ROM 8MB
  13 - Gigabit Ethernet controllers
  14 - eMMC 4GB
  15
  16
  17Configuration for This board:
  18=============================
  19
  20You can select the configuration as follows:
  21
  22 - make sh7753evb_config
  23
  24
  25This board specific command:
  26============================
  27
  28This board has the following its specific command:
  29
  30 - write_mac
  31
  32
  331. write_mac
  34
  35You can write MAC address to SPI ROM.
  36
  37 Usage 1) Write MAC address
  38
  39   write_mac [GETHERC ch0] [GETHERC ch1]
  40
  41        For example)
  42         => write_mac 74:90:50:00:33:9e 74:90:50:00:33:9f
  43                *) We have to input the command as a single line
  44                   (without carriage return)
  45                *) We have to reset after input the command.
  46
  47 Usage 2) Show current data
  48
  49   write_mac
  50
  51        For example)
  52                => write_mac
  53                GETHERC ch0 = 74:90:50:00:33:9e
  54                GETHERC ch1 = 74:90:50:00:33:9f
  55
  56
  57Update SPI ROM:
  58============================
  59
  601. Copy u-boot image to RAM area.
  612. Probe SPI device.
  62   => sf probe 0
  63   SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
  643. Erase SPI ROM.
  65   => sf erase 0 80000
  664. Write u-boot image to SPI ROM.
  67   => sf write 0x48000000 0 80000
  68