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16f47c9c NI |
1 | ------------------------------------------------- |
2 | Simple steps used to test the SH-QSPI at U-Boot | |
3 | ------------------------------------------------- | |
4 | ||
5 | #0, Currently, SH-QSPI is used by lager board (Renesas ARM SoC R8A7790) | |
6 | and koelsch board (Renesas ARM SoC R8A7791). These boot from SPI ROM | |
7 | basically. Thus, U-Boot start, SH-QSPI will is operating normally. | |
8 | ||
9 | #1, build U-Boot and load u-boot.bin | |
10 | ||
11 | => tftpboot 40000000 u-boot.bin | |
12 | sh_eth Waiting for PHY auto negotiation to complete.. done | |
13 | sh_eth: 100Base/Half | |
14 | Using sh_eth device | |
15 | TFTP from server 192.168.169.1; our IP address is 192.168.169.79 | |
16 | Filename 'u-boot.bin'. | |
17 | Load address: 0x40000000 | |
18 | Loading: ############ | |
19 | 2.5 MiB/s | |
20 | done | |
21 | Bytes transferred = 175364 (2ad04 hex) | |
22 | ||
23 | #2, Commands to erase/write u-boot to flash device | |
24 | ||
25 | Note: This method is description of the lager board. If you want to use the | |
26 | other boards, please change the value according to each environment. | |
27 | ||
28 | => sf probe 0 | |
29 | SF: Detected S25FL512S_256K with page size 512 Bytes, erase size 64 KiB, total 64 MiB | |
30 | => sf erase 80000 40000 | |
31 | SF: 262144 bytes @ 0x80000 Erased: OK | |
32 | => sf write 40000000 80000 175364 | |
33 | SF: 1528676 bytes @ 0x80000 Written: OK | |
34 | => | |
35 | ||
36 | #3, Push reset button. | |
37 | ||
38 | If you're written correctly and driver works properly, U-Boot starts. |