[PATCH 0/4] ARM: sun7i: Convert A20 GMAC driver to CCU
From: Priit Laes
Date: Fri Apr 17 2020 - 18:28:47 EST
This serie converts Allwinner A20 (sun7i) GMAC driver to CCU
while still retaining compatibility with existing devicetrees.
First two patches contain preliminary work which convert
sun4i/sun7i clock drivers to platform devices and creates regmap
to access gmac register from the sun7i gmac driver.
Third patch implements syscon-based regmap to allow driver manage
its own clock source.
Fourth patch updates the devicetree and drops the unused clocks.
While testing the driver I noticed following bugs with the existing
sun7i gmac driver:
- driver relies on u-boot for initialization (fixed in this
implementation)
- `systemctl restart networking` fails to bring the link up again.
Priit Laes (4):
clk: sunxi-ng: a10/a20: rewrite init code to a platform driver
clk: sunxi-ng: a20: export a regmap to access the GMAC register
net: stmmac: dwmac-sunxi: Implement syscon-based clock handling
ARM: dts: sun7i: Use syscon-based implementation for gmac
arch/arm/boot/dts/sun7i-a20.dtsi | 36 +----
drivers/clk/sunxi-ng/ccu-sun4i-a10.c | 108 ++++++++++++---
.../net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 124 ++++++++++++++++--
3 files changed, 206 insertions(+), 62 deletions(-)
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2.25.2