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- Simple steps used to test the SH-QSPI at U-Boot
- -------------------------------------------------
- #0, Currently, SH-QSPI is used by lager board (Renesas ARM SoC R8A7790)
- and koelsch board (Renesas ARM SoC R8A7791). These boot from SPI ROM
- basically. Thus, U-Boot start, SH-QSPI will is operating normally.
- #1, build U-Boot and load u-boot.bin
- => tftpboot 40000000 u-boot.bin
- sh_eth Waiting for PHY auto negotiation to complete.. done
- sh_eth: 100Base/Half
- Using sh_eth device
- TFTP from server 192.168.169.1; our IP address is 192.168.169.79
- Filename 'u-boot.bin'.
- Load address: 0x40000000
- Loading: ############
- 2.5 MiB/s
- done
- Bytes transferred = 175364 (2ad04 hex)
- #2, Commands to erase/write u-boot to flash device
- Note: This method is description of the lager board. If you want to use the
- other boards, please change the value according to each environment.
- => sf probe 0
- SF: Detected S25FL512S_256K with page size 512 Bytes, erase size 64 KiB, total 64 MiB
- => sf erase 80000 40000
- SF: 262144 bytes @ 0x80000 Erased: OK
- => sf write 40000000 80000 175364
- SF: 1528676 bytes @ 0x80000 Written: OK
- =>
- #3, Push reset button.
- If you're written correctly and driver works properly, U-Boot starts.
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