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79 lines
1.4 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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SH7753 EVB board
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================
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This board specification
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------------------------
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The SH7753 EVB (board config name:sh7753evb) has the following device:
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- SH7753 (SH-4A)
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- DDR3-SDRAM 512MB
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- SPI ROM 8MB
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- Gigabit Ethernet controllers
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- eMMC 4GB
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Configuration for This board
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----------------------------
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You can select the configuration as follows:
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- make sh7753evb_config
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This board specific command
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---------------------------
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This board has the following its specific command:
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write_mac:
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You can write MAC address to SPI ROM.
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Usage 1: Write MAC address
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.. code-block:: none
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write_mac [GETHERC ch0] [GETHERC ch1]
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For example:
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=> write_mac 74:90:50:00:33:9e 74:90:50:00:33:9f
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* We have to input the command as a single line (without carriage return)
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* We have to reset after input the command.
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Usage 2: Show current data
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.. code-block:: none
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write_mac
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For example:
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=> write_mac
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GETHERC ch0 = 74:90:50:00:33:9e
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GETHERC ch1 = 74:90:50:00:33:9f
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Update SPI ROM
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--------------
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1. Copy u-boot image to RAM area.
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2. Probe SPI device.
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.. code-block:: none
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=> sf probe 0
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SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
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3. Erase SPI ROM.
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.. code-block:: none
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=> sf erase 0 80000
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4. Write u-boot image to SPI ROM.
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.. code-block:: none
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=> sf write 0x48000000 0 80000
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