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path: root/arch/arm/include/asm/arch-exynos/spi.h
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* spi: exynos: Support word transfersRajeshwari Shinde2013-10-08-1/+10
| | | | | | | | | | | | | | Since SPI register access is so expensive, it is worth transferring data a word at a time if we can. This complicates the driver unfortunately. Use the byte-swapping feature to avoid having to convert to/from big endian in software. This change increases speed from about 2MB/s to about 4.5MB/s. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-13/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* SPI: Add SPI Driver for EXYNOS.Rajeshwari Shinde2012-11-15-0/+78
This patch adds SPI driver for EXYNOS. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Gabe Black <gabeblack@google.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Signed-off-by: Hatim Ali <hatim.rv@samsung.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: jy0922.shim@samsung.com Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>