Specify SPI Flash size.

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Gauthier Provost 2018-10-10 15:44:28 +08:00
parent 1e10071461
commit 881e6f8746

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The A388 System-On-Module used by Helios4 provides an SPI NOR flash [Winbond W25Q32BV](https://media.digikey.com/pdf/Data%20Sheets/Winbond%20PDFs/W25Q32BV.pdf) connected to SPI bus 1 Chip Select 0.
The A388 System-On-Module used by Helios4 provides an **32 Mbit SPI NOR flash** connected to SPI bus 1, Chip Select 0 ([Winbond W25Q32BV Datasheet](https://media.digikey.com/pdf/Data%20Sheets/Winbond%20PDFs/W25Q32BV.pdf)).
By default, Helios4 is configured to boot from microSD card. To boot from SPI NOR flash (after [writing U-Boot into SPI NOR flash](#write-u-boot-to-spi-nor-flash)), please change Boot Mode on DIP Switch **SW1** to: