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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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