A new iteration of the dual-IO aware device-model based SPI driver for sunxi (Allwinner SoCs).
As before, this has been tested with dual-IO flashes (Winbond W25Q80DV) on our A64-uQ7 at up to 100MHz. Changes in v2: * Uses wait_bit instead of readl_poll_... for better readability * To address Jagan's concerns regarding the layering violation from detecting SPI-NOR transactions and parsing the command-byte to detect dual-IO reads, I split this off into a separate patch (to make it easier to revert, once the SPI flash subsystem is able to handle this for us)---see the commit message for even more info. Philipp Tomsich (2): spi: sunxi_spi: Add DM SPI driver for A31/A80/A64 sunxi_spi: add support for dual-IO flashes drivers/spi/Kconfig | 14 ++ drivers/spi/Makefile | 1 + drivers/spi/sunxi_spi.c | 582 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 597 insertions(+) create mode 100644 drivers/spi/sunxi_spi.c -- 1.9.1 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/listinfo/u-boot
