forked from Minki/linux
71 lines
1.9 KiB
Plaintext
71 lines
1.9 KiB
Plaintext
|
Samsung Exynos SoC Low Power Audio Subsystem (LPASS)
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
|
||
|
|
- compatible : "samsung,exynos5433-lpass"
|
||
|
|
- reg : should contain the LPASS top SFR region location
|
||
|
|
and size
|
||
|
|
- samsung,pmu-syscon : the phandle to the Power Management Unit node
|
||
|
|
- #address-cells : should be 1
|
||
|
|
- #size-cells : should be 1
|
||
|
|
- ranges : must be present
|
||
|
|
|
||
|
|
Each IP block of the Low Power Audio Subsystem should be specified as
|
||
|
|
an optional sub-node. For "samsung,exynos5433-lpass" compatible this includes:
|
||
|
|
UART, SLIMBUS, PCM, I2S, DMAC, Timers 0...4, VIC, WDT 0...1 devices.
|
||
|
|
|
||
|
|
Bindings of the sub-nodes are described in:
|
||
|
|
../serial/samsung_uart.txt
|
||
|
|
../sound/samsung-i2s.txt
|
||
|
|
../dma/arm-pl330.txt
|
||
|
|
|
||
|
|
|
||
|
|
Example:
|
||
|
|
|
||
|
|
audio-subsystem {
|
||
|
|
compatible = "samsung,exynos5433-lpass";
|
||
|
|
reg = <0x11400000 0x100>, <0x11500000 0x08>;
|
||
|
|
samsung,pmu-syscon = <&pmu_system_controller>;
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <1>;
|
||
|
|
ranges;
|
||
|
|
|
||
|
|
adma: adma@11420000 {
|
||
|
|
compatible = "arm,pl330", "arm,primecell";
|
||
|
|
reg = <0x11420000 0x1000>;
|
||
|
|
interrupts = <0 73 0>;
|
||
|
|
clocks = <&cmu_aud CLK_ACLK_DMAC>;
|
||
|
|
clock-names = "apb_pclk";
|
||
|
|
#dma-cells = <1>;
|
||
|
|
#dma-channels = <8>;
|
||
|
|
#dma-requests = <32>;
|
||
|
|
};
|
||
|
|
|
||
|
|
i2s0: i2s0@11440000 {
|
||
|
|
compatible = "samsung,exynos7-i2s";
|
||
|
|
reg = <0x11440000 0x100>;
|
||
|
|
dmas = <&adma 0 &adma 2>;
|
||
|
|
dma-names = "tx", "rx";
|
||
|
|
interrupts = <0 70 0>;
|
||
|
|
clocks = <&cmu_aud CLK_PCLK_AUD_I2S>,
|
||
|
|
<&cmu_aud CLK_SCLK_AUD_I2S>,
|
||
|
|
<&cmu_aud CLK_SCLK_I2S_BCLK>;
|
||
|
|
clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
|
||
|
|
pinctrl-names = "default";
|
||
|
|
pinctrl-0 = <&i2s0_bus>;
|
||
|
|
status = "disabled";
|
||
|
|
};
|
||
|
|
|
||
|
|
serial_3: serial@11460000 {
|
||
|
|
compatible = "samsung,exynos5433-uart";
|
||
|
|
reg = <0x11460000 0x100>;
|
||
|
|
interrupts = <0 67 0>;
|
||
|
|
clocks = <&cmu_aud CLK_PCLK_AUD_UART>,
|
||
|
|
<&cmu_aud CLK_SCLK_AUD_UART>;
|
||
|
|
clock-names = "uart", "clk_uart_baud0";
|
||
|
|
pinctrl-names = "default";
|
||
|
|
pinctrl-0 = <&uart_aud_bus>;
|
||
|
|
status = "disabled";
|
||
|
|
};
|
||
|
|
};
|