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| author | Jonas Gorski <jogo@openwrt.org> | 2015-08-23 22:49:32 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-08-25 17:33:49 +0100 |
| commit | f4d86223771533c68f1a6692d499f7ef0025f733 (patch) | |
| tree | a420afd5d0a03ba0231282940cf2820ceda2b669 /drivers/gpu/drm/nouveau/nouveau_ioctl.h | |
| parent | bc0195aad0daa2ad5b0d76cce22b167bc3435590 (diff) | |
| download | blackbird-op-linux-f4d86223771533c68f1a6692d499f7ef0025f733.tar.gz blackbird-op-linux-f4d86223771533c68f1a6692d499f7ef0025f733.zip | |
spi/bcm63xx-hsspi: add support for dual spi read/write
Add support for dual read/writes on spi-bcm63xx-hsspi. This has been
tested with a s25fl129p1 dual read capable spi flash, with a nice speed
improvement:
serial read:
root@OpenWrt:/# time dd if=/dev/mtd4 of=/dev/null bs=8192
2032+0 records in
2032+0 records out
real 0m 4.39s
user 0m 0.00s
sys 0m 1.55s
dual read:
root@OpenWrt:/# time dd if=/dev/mtd4 of=/dev/null bs=8192
2032+0 records in
2032+0 records out
real 0m 3.09s
user 0m 0.00s
sys 0m 1.56s
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_ioctl.h')
0 files changed, 0 insertions, 0 deletions
