Some improvements:
- manage syscfg as optional clock,
- update slew rate of ETH_MDIO pin,
- Enable gating of the MAC TX clock during TX low-power mode
V3: Update with Andrew Lunn remark
Christophe Roullier (4):
net: ethernet: stmmac: Add support for syscfg clock
ARM: dts: stm32: remove syscfg clock on stm32mp157c ethernet
ARM: dts: stm32: adjust slew rate for Ethernet
ARM: dts: stm32: Enable gating of the MAC TX clock during TX low-power
mode on stm32mp157c
arch/arm/boot/dts/stm32mp157-pinctrl.dtsi | 9 ++++--
arch/arm/boot/dts/stm32mp157c.dtsi | 7 ++---
.../net/ethernet/stmicro/stmmac/dwmac-stm32.c | 28 +++++++++++--------
3 files changed, 26 insertions(+), 18 deletions(-)
--
2.17.1
Syscfg is now activated automatically when syscfg registers are used
Signed-off-by: Christophe Roullier <[email protected]>
---
arch/arm/boot/dts/stm32mp157c.dtsi | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 9b11654a0a39..f13c2348d130 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -1326,13 +1326,11 @@
clock-names = "stmmaceth",
"mac-clk-tx",
"mac-clk-rx",
- "ethstp",
- "syscfg-clk";
+ "ethstp";
clocks = <&rcc ETHMAC>,
<&rcc ETHTX>,
<&rcc ETHRX>,
- <&rcc ETHSTP>,
- <&rcc SYSCFG>;
+ <&rcc ETHSTP>;
st,syscon = <&syscfg 0x4>;
snps,mixed-burst;
snps,pbl = <2>;
--
2.17.1
When there is no activity on ethernet phy link, the ETH_GTX_CLK is cut
Signed-off-by: Christophe Roullier <[email protected]>
---
arch/arm/boot/dts/stm32mp157c.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index f13c2348d130..8df2986dd452 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -1334,6 +1334,7 @@
st,syscon = <&syscfg 0x4>;
snps,mixed-burst;
snps,pbl = <2>;
+ snps,en-tx-lpi-clockgating;
snps,axi-config = <&stmmac_axi_config_0>;
snps,tso;
status = "disabled";
--
2.17.1