Allwinner H3 SPI controller has same architecture as A31.
So most configuration is identical except one thing - FIFO capacity.
A31 H3
------------------------------------
Number of controllers 4 2
Number of FIFO depth 128 64
Transfer bits 8 8
Register maps are sharable, so sun6i SPI driver is reusable with
device configuration.
Tested on Nano Pi M1 and SPI slave device is TI LP8860.
v2:
Include DTS patches
Use of_device_get_match_data() helper to get device specific data
Fix build warning of 64bit CPU architecture
(warning: cast from pointer to integer of different size
[-Wpointer-to-int-cast])
Milo Kim (4):
ARM: dts: sun8i: Add SPI pinctrl node in H3
ARM: dts: sun8i: Add SPI controller node in H3
spi: sun6i: Add binding for Allwinner H3 SPI controller
spi: sun6i: Support Allwinner H3 SPI controller
.../devicetree/bindings/spi/spi-sun6i.txt | 25 +++++++++++-
arch/arm/boot/dts/sun8i-h3.dtsi | 46 ++++++++++++++++++++++
drivers/spi/spi-sun6i.c | 18 ++++++---
3 files changed, 82 insertions(+), 7 deletions(-)
--
2.9.3
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