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.. SPDX-License-Identifier: GPL-2.0+
SH7753 EVB board
================
This board specification
------------------------
The SH7753 EVB (board config name:sh7753evb) has the following device:
- SH7753 (SH-4A)
- DDR3-SDRAM 512MB
- SPI ROM 8MB
- Gigabit Ethernet controllers
- eMMC 4GB
Configuration for This board
----------------------------
You can select the configuration as follows:
- make sh7753evb_config
This board specific command
---------------------------
This board has the following its specific command:
write_mac:
You can write MAC address to SPI ROM.
Usage 1: Write MAC address
.. code-block:: none
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
.. code-block:: none
write_mac
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.
.. code-block:: none
=> sf probe 0
SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
3. Erase SPI ROM.
.. code-block:: none
=> sf erase 0 80000
4. Write u-boot image to SPI ROM.
.. code-block:: none
=> sf write 0x48000000 0 80000
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