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| author | Simon Glass <sjg@chromium.org> | 2013-12-03 16:43:24 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2013-12-09 12:22:12 -0700 |
| commit | 0efc02499f9131bd7e1689ebb8d626ef12387de4 (patch) | |
| tree | d6b4296f983ebe381432d7db3b12e4368ec0efe9 /include/spi_flash.h | |
| parent | 7b3efc66996b6686ad393b706c323990afa31930 (diff) | |
| download | talos-obmc-uboot-0efc02499f9131bd7e1689ebb8d626ef12387de4.tar.gz talos-obmc-uboot-0efc02499f9131bd7e1689ebb8d626ef12387de4.zip | |
spi_flash: Add spi_flash_probe_fdt() to locate SPI by FDT node
This allows us to put the SPI flash chip inside the SPI interface node,
with U-Boot finding the correct bus and chip select automatically.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/spi_flash.h')
| -rw-r--r-- | include/spi_flash.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h index 25ca8f177b..afc3a5809e 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -67,6 +67,19 @@ struct spi_flash { struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, unsigned int max_hz, unsigned int spi_mode); + +/** + * Set up a new SPI flash from an fdt node + * + * @param blob Device tree blob + * @param slave_node Pointer to this SPI slave node in the device tree + * @param spi_node Cached pointer to the SPI interface this node belongs + * to + * @return 0 if ok, -1 on error + */ +struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node, + int spi_node); + void spi_flash_free(struct spi_flash *flash); static inline int spi_flash_read(struct spi_flash *flash, u32 offset, |
