Hi Andrew,
On Sun, Mar 2, 2025 at 7:25 PM Andrew Lunn <andrew@xxxxxxx> wrote:
>
> > + clock-names:
> > + items:
> > + - const: stmmaceth
> > + - const: pclk
> > + - const: ptp_ref
> > + - const: tx
> > + - const: rx
> > + - const: tx-180
> > + - const: rx-180
>
> As Russell said in an older thread, tx and tx-180 are effectively the
> same clock, but with an inverter added. You should be able to arrange
> the clock tree that if you enable tx, it also enables tx-180 as a
> parent/sibling relationship.
>
I can certainly do that, but not sure in the DT we will be describing
the HW correctly then. I'll have to hide *-180 clocks In the DT and
handle and turning on/off these clocks in the clock driver.
Currently
eth0: ethernet@15c30000 {
compatible = "renesas,r9a09g057-gbeth", "renesas,rzv2h-gbeth",
"snps,dwmac-5.20";
reg = <0 0x15c30000 0 0x10000>;
interrupts = <GIC_SPI 765 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 767 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 766 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 768 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 769 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 770 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 771 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 772 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 773 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 774 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 745 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "macirq", "eth_wake_irq", "eth_lpi",
"tx0", "tx1", "tx2", "tx3",
"rx0", "rx1", "rx2", "rx3";
clocks = <&cpg CPG_MOD 0xbd>,
<&cpg CPG_MOD 0xbc>,
<&cpg CPG_CORE R9A09G057_GBETH_0_CLK_PTP_REF_I>,
<&cpg CPG_MOD 0xb8>,
<&cpg CPG_MOD 0xb9>,
<&cpg CPG_MOD 0xba>,
<&cpg CPG_MOD 0xbb>;
clock-names = "stmmaceth", "pclk", "ptp_ref",
"tx", "rx", "tx-180", "rx-180";
resets = <&cpg 0xb0>;
.....
};
Cheers,
Prabhakar
