| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| R0P7752C00000RZ board |
| ===================== |
| |
| This board specification |
| ------------------------ |
| |
| The R0P7752C00000RZ(board config name:sh7752evb) has the following device: |
| |
| - SH7752 (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 sh7752evb_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 |
