1*16f47c9cSNobuhiro Iwamatsu------------------------------------------------- 2*16f47c9cSNobuhiro Iwamatsu Simple steps used to test the SH-QSPI at U-Boot 3*16f47c9cSNobuhiro Iwamatsu------------------------------------------------- 4*16f47c9cSNobuhiro Iwamatsu 5*16f47c9cSNobuhiro Iwamatsu#0, Currently, SH-QSPI is used by lager board (Renesas ARM SoC R8A7790) 6*16f47c9cSNobuhiro Iwamatsu and koelsch board (Renesas ARM SoC R8A7791). These boot from SPI ROM 7*16f47c9cSNobuhiro Iwamatsu basically. Thus, U-Boot start, SH-QSPI will is operating normally. 8*16f47c9cSNobuhiro Iwamatsu 9*16f47c9cSNobuhiro Iwamatsu#1, build U-Boot and load u-boot.bin 10*16f47c9cSNobuhiro Iwamatsu 11*16f47c9cSNobuhiro Iwamatsu => tftpboot 40000000 u-boot.bin 12*16f47c9cSNobuhiro Iwamatsu sh_eth Waiting for PHY auto negotiation to complete.. done 13*16f47c9cSNobuhiro Iwamatsu sh_eth: 100Base/Half 14*16f47c9cSNobuhiro Iwamatsu Using sh_eth device 15*16f47c9cSNobuhiro Iwamatsu TFTP from server 192.168.169.1; our IP address is 192.168.169.79 16*16f47c9cSNobuhiro Iwamatsu Filename 'u-boot.bin'. 17*16f47c9cSNobuhiro Iwamatsu Load address: 0x40000000 18*16f47c9cSNobuhiro Iwamatsu Loading: ############ 19*16f47c9cSNobuhiro Iwamatsu 2.5 MiB/s 20*16f47c9cSNobuhiro Iwamatsu done 21*16f47c9cSNobuhiro Iwamatsu Bytes transferred = 175364 (2ad04 hex) 22*16f47c9cSNobuhiro Iwamatsu 23*16f47c9cSNobuhiro Iwamatsu#2, Commands to erase/write u-boot to flash device 24*16f47c9cSNobuhiro Iwamatsu 25*16f47c9cSNobuhiro Iwamatsu Note: This method is description of the lager board. If you want to use the 26*16f47c9cSNobuhiro Iwamatsu other boards, please change the value according to each environment. 27*16f47c9cSNobuhiro Iwamatsu 28*16f47c9cSNobuhiro Iwamatsu => sf probe 0 29*16f47c9cSNobuhiro Iwamatsu SF: Detected S25FL512S_256K with page size 512 Bytes, erase size 64 KiB, total 64 MiB 30*16f47c9cSNobuhiro Iwamatsu => sf erase 80000 40000 31*16f47c9cSNobuhiro Iwamatsu SF: 262144 bytes @ 0x80000 Erased: OK 32*16f47c9cSNobuhiro Iwamatsu => sf write 40000000 80000 175364 33*16f47c9cSNobuhiro Iwamatsu SF: 1528676 bytes @ 0x80000 Written: OK 34*16f47c9cSNobuhiro Iwamatsu => 35*16f47c9cSNobuhiro Iwamatsu 36*16f47c9cSNobuhiro Iwamatsu#3, Push reset button. 37*16f47c9cSNobuhiro Iwamatsu 38*16f47c9cSNobuhiro Iwamatsu If you're written correctly and driver works properly, U-Boot starts. 39