2013-04-10 12:12:15

by Philip, Avinash

[permalink] [raw]
Subject: [PATCH v5] ARM: davinci: da850: add EHRPWM & ECAP DT node

Add da850 EHRPWM & ECAP DT node along with pin-mux details.
Also adds OF_DEV_AUXDATA for EHRPWM & ECAP driver to use EHRPWM & ECAP
clock.

Signed-off-by: Philip Avinash <[email protected]>
---
Changes since v4:
- Add pin mux for PWM devices ECAP & EHRPWM.

Changes since v3:
- add pin mux info for EHRPWM1.

Changes since v1:
- Reusing ti,am33xx<ecap/ehrpwm> as compatible field as both IP's are
similar with am33xx platform and da850 has no platform specific
dependency.

arch/arm/boot/dts/da850.dtsi | 73 ++++++++++++++++++++++++++++++++++++++
arch/arm/mach-davinci/da8xx-dt.c | 5 +++
2 files changed, 78 insertions(+)

diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 3ade343..b2ae730 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -71,6 +71,49 @@
0x28 0x00222222 0x00ffffff
>;
};
+ ehrpwm0a_pins: pinmux_ehrpwm0a_pins {
+ pinctrl-single,bits = <
+ /* EPWM0A */
+ 0xc 0x00000002 0x0000000f
+ >;
+ };
+ ehrpwm0b_pins: pinmux_ehrpwm0b_pins {
+ pinctrl-single,bits = <
+ /* EPWM0B */
+ 0xc 0x00000020 0x000000f0
+ >;
+ };
+ ehrpwm1a_pins: pinmux_ehrpwm1a_pins {
+ pinctrl-single,bits = <
+ /* EPWM1A */
+ 0x14 0x00000002 0x0000000f
+ >;
+ };
+ ehrpwm1b_pins: pinmux_ehrpwm1b_pins {
+ pinctrl-single,bits = <
+ /* EPWM1B */
+ 0x14 0x00000020 0x000000f0
+ >;
+ };
+ ecap0_pins: pinmux_ecap0_pins {
+ pinctrl-single,bits = <
+ /* ECAP0_APWM0 */
+ 0x8 0x20000000 0xf0000000
+ >;
+ };
+ ecap1_pins: pinmux_ecap1_pins {
+ pinctrl-single,bits = <
+ /* ECAP1_APWM1 */
+ 0x4 0x40000000 0xf0000000
+ >;
+ };
+ ecap2_pins: pinmux_ecap2_pins {
+ pinctrl-single,bits = <
+ /* ECAP2_APWM2 */
+ 0x4 0x00000004 0x0000000f
+ >;
+ };
+
};
serial0: [email protected] {
compatible = "ns16550a";
@@ -122,6 +165,36 @@
interrupts = <16>;
status = "disabled";
};
+ ehrpwm0: [email protected] {
+ compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x300000 0x2000>;
+ status = "disabled";
+ };
+ ehrpwm1: [email protected] {
+ compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x302000 0x2000>;
+ status = "disabled";
+ };
+ ecap0: [email protected] {
+ compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x306000 0x80>;
+ status = "disabled";
+ };
+ ecap1: [email protected] {
+ compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x307000 0x80>;
+ status = "disabled";
+ };
+ ecap2: [email protected] {
+ compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x308000 0x80>;
+ status = "disabled";
+ };
};
[email protected] {
compatible = "ti,davinci-nand";
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index d83de8f..05bb9a2 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -41,6 +41,11 @@ struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL),
OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL),
OF_DEV_AUXDATA("ti,da830-mmc", 0x01c40000, "da830-mmc.0", NULL),
+ OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f00000, "ehrpwm", NULL),
+ OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f02000, "ehrpwm", NULL),
+ OF_DEV_AUXDATA("ti,da850-ecap", 0x01f06000, "ecap", NULL),
+ OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap", NULL),
+ OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap", NULL),
{}
};

--
1.7.9.5


2013-04-15 06:04:46

by Sekhar Nori

[permalink] [raw]
Subject: Re: [PATCH v5] ARM: davinci: da850: add EHRPWM & ECAP DT node

On 4/10/2013 5:42 PM, Philip Avinash wrote:
> Add da850 EHRPWM & ECAP DT node along with pin-mux details.
> Also adds OF_DEV_AUXDATA for EHRPWM & ECAP driver to use EHRPWM & ECAP
> clock.
>
> Signed-off-by: Philip Avinash <[email protected]>

Looks good to me. Will try and see if this can make it to v3.10.

Thanks,
Sekhar