[PATCH 2/2] ARM: dts: stm32: Add KS8851 on FMC2 to STM32MP1 DHCOM
Marek Vasut
marex at denx.de
Thu Oct 8 15:38:00 EDT 2020
Add bindings for the KS8851 ethernet present on the STM32MP1 DHCOM SoM.
Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Alexandre Torgue <alexandre.torgue at st.com>
Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
Cc: Patrice Chotard <patrice.chotard at st.com>
Cc: Patrick Delaunay <patrick.delaunay at st.com>
Cc: linux-stm32 at st-md-mailman.stormreply.com
To: linux-arm-kernel at lists.infradead.org
---
arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi | 35 ++++++++++++++++++++
1 file changed, 35 insertions(+)
diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
index bc6b2b33078d..f62bf170408e 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-som.dtsi
@@ -11,6 +11,7 @@
/ {
aliases {
ethernet0 = ðernet0;
+ ethernet1 = &ksz8851;
};
memory at c0000000 {
@@ -132,6 +133,40 @@
};
};
+&fmc {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&fmc_pins_b>;
+ pinctrl-1 = <&fmc_sleep_pins_b>;
+ status = "okay";
+
+ ksz8851: ks8851mll at 1,0 {
+ compatible = "micrel,ks8851-mll";
+ reg = <1 0x0 0x2>, <1 0x2 0x20000>;
+ interrupt-parent = <&gpioc>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+ bank-width = <2>;
+
+ /* Timing values are in nS */
+ st,fmc2-ebi-cs-mux-enable;
+ st,fmc2-ebi-cs-transaction-type = <4>;
+ st,fmc2-ebi-cs-buswidth = <16>;
+ st,fmc2-ebi-cs-address-setup-ns = <5>;
+ st,fmc2-ebi-cs-address-hold-ns = <5>;
+ st,fmc2-ebi-cs-bus-turnaround-ns = <5>;
+ st,fmc2-ebi-cs-data-setup-ns = <45>;
+ st,fmc2-ebi-cs-data-hold-ns = <1>;
+ st,fmc2-ebi-cs-write-address-setup-ns = <5>;
+ st,fmc2-ebi-cs-write-address-hold-ns = <5>;
+ st,fmc2-ebi-cs-write-bus-turnaround-ns = <5>;
+ st,fmc2-ebi-cs-write-data-setup-ns = <45>;
+ st,fmc2-ebi-cs-write-data-hold-ns = <1>;
+ };
+};
+
+&gpioc {
+ status = "okay";
+};
+
&i2c4 {
pinctrl-names = "default";
pinctrl-0 = <&i2c4_pins_a>;
--
2.28.0
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