This adds the PRCM clocks and reset controls to the A80 dtsi.
The list of apbs clock gates is incomplete. Tests show that bits 0~20
are mutable. We will need documents from Allwinner to complete the
support.
Also update clock and reset phandles for r_uart.
Signed-off-by: Chen-Yu Tsai <w...@csie.org>
---
arch/arm/boot/dts/sun9i-a80.dtsi | 64 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 63 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index d3dece2eea72..f0869ff8006f 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -169,6 +169,14 @@
"usb_phy2", "usb_hsic_12M";
};
+ pll3: clk@06000008 {
+ /* placeholder until implemented */
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-rate = <0>;
+ clock-output-names = "pll3";
+ };
+
pll4: clk@0600000c {
#clock-cells = <0>;
compatible = "allwinner,sun9i-a80-pll4-clk";
@@ -751,13 +759,67 @@
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
};
+ prcm@08001400 {
+ compatible = "allwinner,sun9i-a80-prcm";
+ reg = <0x08001400 0x200>;
+
+ cpus_clk: cpus_clk {
+ compatible = "allwinner,sun9i-a80-cpus-clk";
+ #clock-cells = <0>;
+ clocks = <&osc32k>, <&osc24M>, <&pll4>, <&pll3>;
+ clock-output-names = "cpus";
+ };
+
+ ahbs: ahbs_clk {
+ compatible = "fixed-factor-clock";
+ #clock-cells = <0>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ clocks = <&cpus_clk>;
+ clock-output-names = "ahbs";
+ };
+
+ apbs: apbs_clk {
+ compatible = "allwinner,sun8i-a23-apb0-clk";
+ #clock-cells = <0>;
+ clocks = <&ahbs>;
+ clock-output-names = "apbs";
+ };
+
+ apbs_gates: apbs_gates_clk {
+ compatible =
"allwinner,sun9i-a80-apbs-gates-clk";
+ #clock-cells = <1>;
+ clocks = <&apbs>;
+ clock-output-names = "apbs_pio", "apbs_ir",
+ "apbs_timer", "apbs_rsb",
+ "apbs_uart", "apbs_1wire",
+ "apbs_i2c0", "apbs_i2c1",
+ "apbs_ps2_0", "apbs_ps2_1",
+ "apbs_dma", "apbs_i2s0",
+ "apbs_i2s1", "apbs_twd";
+ };
+
+ r_ir_clk: r_ir_clk {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-mod0-clk";
+ clocks = <&osc32k>, <&osc24M>;
+ clock-output-names = "r_ir";
+ };
+
+ apbs_rst: apbs_rst {
+ compatible = "allwinner,sun6i-a31-clock-reset";
+ #reset-cells = <1>;
+ };
+ };
+
r_uart: serial@08002800 {
compatible = "snps,dw-apb-uart";
reg = <0x08002800 0x400>;
interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
reg-shift = <2>;
reg-io-width = <4>;
- clocks = <&osc24M>;
+ clocks = <&apbs_gates 4>;
+ resets = <&apbs_rst 4>;
status = "disabled";
};
};
--
2.1.4
--
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