doc/README.sh7753evb

   1 ========================================
   2 Renesas SH7753 EVB board
   3 ========================================
   4
   5 This board specification:
   6 =========================
   7
   8 The 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
  17 Configuration for This board:
  18 =============================
  19
  20 You can select the configuration as follows:
  21
  22  - make sh7753evb_config
  23
  24
  25 This board specific command:
  26 ============================
  27
  28 This board has the following its specific command:
  29
  30  - write_mac
  31
  32
  33 1. write_mac
  34
  35 You 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
  57 Update SPI ROM:
  58 ============================
  59
  60 1. Copy u-boot image to RAM area.
  61 2. Probe SPI device.
  62    => sf probe 0
  63    SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
  64 3. Erase SPI ROM.
  65    => sf erase 0 80000
  66 4. Write u-boot image to SPI ROM.
  67    => sf write 0x48000000 0 80000