Add the ARM PLL controller which comes standard with the Cortex-A9 found
on the BCM63138 SoCs. This is the same controller as the one found in
the Broadcom iProc architecture, however, we have a separate compatible
string to indicate the integration difference.
While at it, properly rename references to the 50Mhz clock which is in
fact a crystal/oscillator and updates references to it.
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
No changes in v2 or v3
arch/arm/boot/dts/bcm63138.dtsi | 39 +++++++++++++++++++++++++++++----------
1 file changed, 29 insertions(+), 10 deletions(-)
diff --git a/arch/arm/boot/dts/bcm63138.dtsi b/arch/arm/boot/dts/bcm63138.dtsi
index 34cd64051250..c146325eebdb 100644
--- a/arch/arm/boot/dts/bcm63138.dtsi
+++ b/arch/arm/boot/dts/bcm63138.dtsi
@@ -43,17 +43,29 @@
#address-cells = <1>;
#size-cells = <0>;
- arm_timer_clk: arm_timer_clk {
+ osc: oscillator {
#clock-cells = <0>;
compatible = "fixed-clock";
- clock-frequency = <500000000>;
+ clock-frequency = <50000000>;
+ clock-output-names = "periph";
};
- periph_clk: periph_clk {
+ /* peripheral clock for system timer */
+ axi_clk: axi_clk {
#clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <50000000>;
- clock-output-names = "periph";
+ compatible = "fixed-factor-clock";
+ clocks = <&armpll>;
+ clock-div = <2>;
+ clock-mult = <1>;
+ };
+
+ /* APB bus clock */
+ apb_clk: apb_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-factor-clock";
+ clocks = <&armpll>;
+ clock-div = <4>;
+ clock-mult = <1>;
};
};
@@ -93,14 +105,14 @@
compatible = "arm,cortex-a9-global-timer";
reg = <0x1e200 0x20>;
interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&arm_timer_clk>;
+ clocks = <&axi_clk>;
};
local_timer: local-timer@1e600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0x1e600 0x20>;
interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&arm_timer_clk>;
+ clocks = <&axi_clk>;
};
twd_watchdog: watchdog@1e620 {
@@ -109,6 +121,13 @@
interrupts = <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>;
};
+ armpll: armpll {
+ #clock-cells = <0>;
+ compatible = "brcm,bcm63138-armpll";
+ clocks = <&osc>;
+ reg = <0x20000 0xf00>;
+ };
+
pmb0: reset-controller@4800c0 {
compatible = "brcm,bcm63138-pmb";
reg = <0x4800c0 0x10>;
@@ -138,7 +157,7 @@
compatible = "brcm,bcm6345-uart";
reg = <0x600 0x1b>;
interrupts = <GIC_SPI 32 0>;
- clocks = <&periph_clk>;
+ clocks = <&osc>;
clock-names = "periph";
status = "disabled";
};
@@ -147,7 +166,7 @@
compatible = "brcm,bcm6345-uart";
reg = <0x620 0x1b>;
interrupts = <GIC_SPI 33 0>;
- clocks = <&periph_clk>;
+ clocks = <&osc>;
clock-names = "periph";
status = "disabled";
};
--
2.1.0
--
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