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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 09:31:45 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-02 09:31:45 -0700 |
commit | 97b1007a2924aaa9126398623f6755a8c3c6a616 (patch) | |
tree | b65c6edb631256e64bb3c72f083fa1be048de097 /Documentation/devicetree/bindings/arm | |
parent | dfab34aa61a0f8c14a67d7b4c1dae28e57ba592d (diff) | |
parent | e0d20b69d3fa74a21ec363989612bddd58b930b8 (diff) | |
download | blackbird-op-linux-97b1007a2924aaa9126398623f6755a8c3c6a616.tar.gz blackbird-op-linux-97b1007a2924aaa9126398623f6755a8c3c6a616.zip |
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Olof Johansson:
"This branch contains part 1 of the platform updates for 3.10. Among
the highlights:
- Support for the new Atmel Cortex-A5 based platforms (SAMA5D3)
- New support for CSR SiRFatlas6 SoCs
- A handful of updates for NVidia T114 (a.k.a. Tegra 4)
- A bunch of updates for the shmobile platforms
- A handful of updates for davinci
- A few updates for Qualcomm MSM
- Plus a handful of other patches, defconfig updates, etc."
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (135 commits)
ARM: tegra: pm: fix build error w/o PM_SLEEP
ARM: davinci: ensure global variables are declared
ARM: davinci: sram.c: fix incorrect type in assignment
ARM: davinci: da8xx dt: make file local symbols static
ARM: davinci: da8xx: add remoteproc support
ARM: socfpga: Upgrade clk driver for socfpga to make use of dts clock entries
ARM: socfpga: Add clock entries into device tree
ARM: socfpga: Enable soft reset
ARM: EXYNOS: replace cpumask by the corresponding macro
ARM: EXYNOS: handle properly the return values
ARM: EXYNOS: factor out the idle states
ARM: OMAP4: Enable fix for Cortex-A9 erratas
ARM: OMAP2+: Export SoC information to userspace
ARM: OMAP2+: SoC name and revision unification
ARM: OMAP2+: Move common part of late init into common function
ARM: tegra: pm: remove duplicated include from pm.c
ARM: davinci: da850: override mmc DT node device name
ARM: davinci: da850: add mmc DT entries
mmc: davinci_mmc: add DT support
ARM: SAMSUNG: check processor type before cache restoration in resume
...
Diffstat (limited to 'Documentation/devicetree/bindings/arm')
4 files changed, 116 insertions, 22 deletions
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.txt new file mode 100644 index 000000000000..2c28f1d12f45 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.txt @@ -0,0 +1,11 @@ +Altera SOCFPGA Clock Manager + +Required properties: +- compatible : "altr,clk-mgr" +- reg : Should contain base address and length for Clock Manager + +Example: + clkmgr@ffd04000 { + compatible = "altr,clk-mgr"; + reg = <0xffd04000 0x1000>; + }; diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt b/Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt new file mode 100644 index 000000000000..59fa6e68d4f6 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/bcm/bcm,kona-timer.txt @@ -0,0 +1,19 @@ +Broadcom Kona Family timer +----------------------------------------------------- +This timer is used in the following Broadcom SoCs: + BCM11130, BCM11140, BCM11351, BCM28145, BCM28155 + +Required properties: +- compatible : "bcm,kona-timer" +- reg : Register range for the timer +- interrupts : interrupt for the timer +- clock-frequency: frequency that the clock operates + +Example: + timer@35006000 { + compatible = "bcm,kona-timer"; + reg = <0x35006000 0x1000>; + interrupts = <0x0 7 0x4>; + clock-frequency = <32768>; + }; + diff --git a/Documentation/devicetree/bindings/arm/msm/timer.txt b/Documentation/devicetree/bindings/arm/msm/timer.txt index 8c5907b9cae8..c6ef8f13dc7e 100644 --- a/Documentation/devicetree/bindings/arm/msm/timer.txt +++ b/Documentation/devicetree/bindings/arm/msm/timer.txt @@ -3,36 +3,35 @@ Properties: - compatible : Should at least contain "qcom,msm-timer". More specific - properties such as "qcom,msm-gpt" and "qcom,msm-dgt" specify a general - purpose timer and a debug timer respectively. + properties specify which subsystem the timers are paired with. -- interrupts : Interrupt indicating a match event. + "qcom,kpss-timer" - krait subsystem + "qcom,scss-timer" - scorpion subsystem -- reg : Specifies the base address of the timer registers. The second region - specifies an optional register used to configure the clock divider. +- interrupts : Interrupts for the the debug timer, the first general purpose + timer, and optionally a second general purpose timer in that + order. -- clock-frequency : The frequency of the timer in Hz. +- reg : Specifies the base address of the timer registers. + +- clock-frequency : The frequency of the debug timer and the general purpose + timer(s) in Hz in that order. Optional: - cpu-offset : per-cpu offset used when the timer is accessed without the - CPU remapping facilities. The offset is cpu-offset * cpu-nr. + CPU remapping facilities. The offset is + cpu-offset + (0x10000 * cpu-nr). Example: - timer@200a004 { - compatible = "qcom,msm-gpt", "qcom,msm-timer"; - interrupts = <1 2 0x301>; - reg = <0x0200a004 0x10>; - clock-frequency = <32768>; - cpu-offset = <0x40000>; - }; - - timer@200a024 { - compatible = "qcom,msm-dgt", "qcom,msm-timer"; - interrupts = <1 3 0x301>; - reg = <0x0200a024 0x10>, - <0x0200a034 0x4>; - clock-frequency = <6750000>; + timer@200a000 { + compatible = "qcom,scss-timer", "qcom,msm-timer"; + interrupts = <1 1 0x301>, + <1 2 0x301>, + <1 3 0x301>; + reg = <0x0200a000 0x100>; + clock-frequency = <19200000>, + <32768>; cpu-offset = <0x40000>; }; diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt index b5846e21cc2e..1608a54e90e1 100644 --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt @@ -1,19 +1,84 @@ NVIDIA Tegra Power Management Controller (PMC) -Properties: +The PMC block interacts with an external Power Management Unit. The PMC +mostly controls the entry and exit of the system from different sleep +modes. It provides power-gating controllers for SoC and CPU power-islands. + +Required properties: - name : Should be pmc - compatible : Should contain "nvidia,tegra<chip>-pmc". - reg : Offset and length of the register set for the device +- clocks : Must contain an entry for each entry in clock-names. +- clock-names : Must include the following entries: + "pclk" (The Tegra clock of that name), + "clk32k_in" (The 32KHz clock input to Tegra). + +Optional properties: - nvidia,invert-interrupt : If present, inverts the PMU interrupt signal. The PMU is an external Power Management Unit, whose interrupt output signal is fed into the PMC. This signal is optionally inverted, and then fed into the ARM GIC. The PMC is not involved in the detection or handling of this interrupt signal, merely its inversion. +- nvidia,suspend-mode : The suspend mode that the platform should use. + Valid values are 0, 1 and 2: + 0 (LP0): CPU + Core voltage off and DRAM in self-refresh + 1 (LP1): CPU voltage off and DRAM in self-refresh + 2 (LP2): CPU voltage off +- nvidia,core-power-req-active-high : Boolean, core power request active-high +- nvidia,sys-clock-req-active-high : Boolean, system clock request active-high +- nvidia,combined-power-req : Boolean, combined power request for CPU & Core +- nvidia,cpu-pwr-good-en : Boolean, CPU power good signal (from PMIC to PMC) + is enabled. + +Required properties when nvidia,suspend-mode is specified: +- nvidia,cpu-pwr-good-time : CPU power good time in uS. +- nvidia,cpu-pwr-off-time : CPU power off time in uS. +- nvidia,core-pwr-good-time : <Oscillator-stable-time Power-stable-time> + Core power good time in uS. +- nvidia,core-pwr-off-time : Core power off time in uS. + +Required properties when nvidia,suspend-mode=<0>: +- nvidia,lp0-vec : <start length> Starting address and length of LP0 vector + The LP0 vector contains the warm boot code that is executed by AVP when + resuming from the LP0 state. The AVP (Audio-Video Processor) is an ARM7 + processor and always being the first boot processor when chip is power on + or resume from deep sleep mode. When the system is resumed from the deep + sleep mode, the warm boot code will restore some PLLs, clocks and then + bring up CPU0 for resuming the system. Example: +/ SoC dts including file pmc@7000f400 { compatible = "nvidia,tegra20-pmc"; reg = <0x7000e400 0x400>; + clocks = <&tegra_car 110>, <&clk32k_in>; + clock-names = "pclk", "clk32k_in"; nvidia,invert-interrupt; + nvidia,suspend-mode = <1>; + nvidia,cpu-pwr-good-time = <2000>; + nvidia,cpu-pwr-off-time = <100>; + nvidia,core-pwr-good-time = <3845 3845>; + nvidia,core-pwr-off-time = <458>; + nvidia,core-power-req-active-high; + nvidia,sys-clock-req-active-high; + nvidia,lp0-vec = <0xbdffd000 0x2000>; +}; + +/ Tegra board dts file +{ + ... + clocks { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + clk32k_in: clock { + compatible = "fixed-clock"; + reg=<0>; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + }; + ... }; |