R0P7752C00000RZ board

This board specification

The R0P7752C00000RZ(board config name:sh7752evb) has the following device:

  • SH7752 (SH-4A)
  • DDR3-SDRAM 512MB
  • Gigabit Ethernet controllers
  • eMMC 4GB

Configuration for This board

You can select the configuration as follows:

  • make sh7752evb_config

This board specific command

This board has the following its specific command:

You can write MAC address to SPI ROM.

Usage 1: Write MAC address

write_mac [GETHERC ch0] [GETHERC ch1]

For example:
=> write_mac 74:90:50:00:33:9e 74:90:50:00:33:9f
  • We have to input the command as a single line (without carriage return)
  • We have to reset after input the command.

Usage 2: Show current data


For example:
=> write_mac
   GETHERC ch0 = 74:90:50:00:33:9e
   GETHERC ch1 = 74:90:50:00:33:9f

Update SPI ROM

  1. Copy u-boot image to RAM area.
  2. Probe SPI device.
=> sf probe 0
SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
  1. Erase SPI ROM.
=> sf erase 0 80000
  1. Write u-boot image to SPI ROM.
=> sf write 0x48000000 0 80000