diff options
| author | Tero Kristo <t-kristo@ti.com> | 2014-02-25 09:21:39 +0200 |
|---|---|---|
| committer | Tero Kristo <t-kristo@ti.com> | 2014-07-02 15:06:35 +0300 |
| commit | ee200119c03c7d43ebaf7ae70985244aedb0586d (patch) | |
| tree | 730fd311683e0de9ce13f14d12d681e2e86af058 | |
| parent | a37f05ac094fb0474ddaea8bcfa2c18e0df8cb2e (diff) | |
ARM: OMAP2: PRM: add support for OMAP2 specific clock providers
This patch adds support for initializing also omap2-prcm and omap2-scrm
through DT.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
| -rw-r--r-- | Documentation/devicetree/bindings/arm/omap/prcm.txt | 65 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm_common.c | 2 |
2 files changed, 67 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/omap/prcm.txt b/Documentation/devicetree/bindings/arm/omap/prcm.txt new file mode 100644 index 000000000000..79074dac684a --- /dev/null +++ b/Documentation/devicetree/bindings/arm/omap/prcm.txt @@ -0,0 +1,65 @@ +OMAP PRCM bindings + +Power Reset and Clock Manager lists the device clocks and clockdomains under +a DT hierarchy. Each TI SoC can have multiple PRCM entities listed for it, +each describing one module and the clock hierarchy under it. see [1] for +documentation about the individual clock/clockdomain nodes. + +[1] Documentation/devicetree/bindings/clock/ti/* + +Required properties: +- compatible: Must be one of: + "ti,am3-prcm" + "ti,am3-scrm" + "ti,am4-prcm" + "ti,am4-scrm" + "ti,omap2-prcm" + "ti,omap2-scrm" + "ti,omap3-prm" + "ti,omap3-cm" + "ti,omap3-scrm" + "ti,omap4-cm1" + "ti,omap4-prm" + "ti,omap4-cm2" + "ti,omap4-scrm" + "ti,omap5-prm" + "ti,omap5-cm-core-aon" + "ti,omap5-scrm" + "ti,omap5-cm-core" + "ti,dra7-prm" + "ti,dra7-cm-core-aon" + "ti,dra7-cm-core" +- reg: Contains PRCM module register address range + (base address and length) +- clocks: clocks for this module +- clockdomains: clockdomains for this module + +Example: + +cm: cm@48004000 { + compatible = "ti,omap3-cm"; + reg = <0x48004000 0x4000>; + + cm_clocks: clocks { + #address-cells = <1>; + #size-cells = <0>; + }; + + cm_clockdomains: clockdomains { + }; +} + +&cm_clocks { + omap2_32k_fck: omap_32k_fck { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <32768>; + }; +}; + +&cm_clockdomains { + core_l3_clkdm: core_l3_clkdm { + compatible = "ti,clockdomain"; + clocks = <&sdrc_ick>; + }; +}; diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index 25e8b8232115..76ca320f007c 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -472,6 +472,8 @@ static struct of_device_id omap_prcm_dt_match_table[] = { { .compatible = "ti,am3-scrm" }, { .compatible = "ti,am4-prcm" }, { .compatible = "ti,am4-scrm" }, + { .compatible = "ti,omap2-prcm" }, + { .compatible = "ti,omap2-scrm" }, { .compatible = "ti,omap3-prm" }, { .compatible = "ti,omap3-cm" }, { .compatible = "ti,omap3-scrm" }, |