Hello, I tried to connect a SPI NOR flash to my sunxi board and due to the current sunxi SPI driver limitations it does not work.
The SPI driver returns an error when more than 64 bytes are transferred at once due to lack of DMA support. I tried to hack in an option to limit the transfer size and discovered that the return value of write in m25p80 driver is wrong and never checked. This might be useful while working with other devices with limited driver support. Thanks Michal Michal Suchanek (3): MTD: m25p80: fix write return value. MTD: spi-nor: check for short writes in spi_nor_write. MTD: m25p80: Add option to limit SPI transfer size. Documentation/devicetree/bindings/mtd/m25p80.txt | 5 +++ drivers/mtd/devices/m25p80.c | 21 ++++++++++-- drivers/mtd/spi-nor/spi-nor.c | 42 ++++++++++-------------- 3 files changed, 40 insertions(+), 28 deletions(-) -- 2.1.4 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
