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Merge branch 'v3.16-next/clk-s3c24xx-3' into v3.16-next/cleanup-samsung
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Kukjin Kim committed May 25, 2014
2 parents 702b691 + 34c453c commit b5783dc
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50 changes: 50 additions & 0 deletions Documentation/devicetree/bindings/clock/samsung,s3c2410-clock.txt
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* Samsung S3C2410 Clock Controller

The S3C2410 clock controller generates and supplies clock to various controllers
within the SoC. The clock binding described here is applicable to the s3c2410,
s3c2440 and s3c2442 SoCs in the s3c24x family.

Required Properties:

- compatible: should be one of the following.
- "samsung,s3c2410-clock" - controller compatible with S3C2410 SoC.
- "samsung,s3c2440-clock" - controller compatible with S3C2440 SoC.
- "samsung,s3c2442-clock" - controller compatible with S3C2442 SoC.
- reg: physical base address of the controller and length of memory mapped
region.
- #clock-cells: should be 1.

Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume. Some of the clocks are available only
on a particular SoC.

All available clocks are defined as preprocessor macros in
dt-bindings/clock/samsung,s3c2410-clock.h header and can be used in device
tree sources.

External clocks:

The xti clock used as input for the plls is generated outside the SoC. It is
expected that is are defined using standard clock bindings with a
clock-output-names value of "xti".

Example: Clock controller node:

clocks: clock-controller@4c000000 {
compatible = "samsung,s3c2410-clock";
reg = <0x4c000000 0x20>;
#clock-cells = <1>;
};

Example: UART controller node that consumes the clock generated by the clock
controller (refer to the standard clock bindings for information about
"clocks" and "clock-names" properties):

serial@50004000 {
compatible = "samsung,s3c2440-uart";
reg = <0x50004000 0x4000>;
interrupts = <1 23 3 4>, <1 23 4 4>;
clock-names = "uart", "clk_uart_baud2";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>;
status = "disabled";
};
50 changes: 50 additions & 0 deletions Documentation/devicetree/bindings/clock/samsung,s3c2412-clock.txt
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* Samsung S3C2412 Clock Controller

The S3C2412 clock controller generates and supplies clock to various controllers
within the SoC. The clock binding described here is applicable to the s3c2412
and s3c2413 SoCs in the s3c24x family.

Required Properties:

- compatible: should be "samsung,s3c2412-clock"
- reg: physical base address of the controller and length of memory mapped
region.
- #clock-cells: should be 1.

Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume. Some of the clocks are available only
on a particular SoC.

All available clocks are defined as preprocessor macros in
dt-bindings/clock/s3c2412.h header and can be used in device
tree sources.

External clocks:

There are several clocks that are generated outside the SoC. It is expected
that they are defined using standard clock bindings with following
clock-output-names:
- "xti" - crystal input - required,
- "ext" - external clock source - optional,

Example: Clock controller node:

clocks: clock-controller@4c000000 {
compatible = "samsung,s3c2412-clock";
reg = <0x4c000000 0x20>;
#clock-cells = <1>;
};

Example: UART controller node that consumes the clock generated by the clock
controller (refer to the standard clock bindings for information about
"clocks" and "clock-names" properties):

serial@50004000 {
compatible = "samsung,s3c2412-uart";
reg = <0x50004000 0x4000>;
interrupts = <1 23 3 4>, <1 23 4 4>;
clock-names = "uart", "clk_uart_baud2", "clk_uart_baud3";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
<&clocks SCLK_UART>;
status = "disabled";
};
56 changes: 56 additions & 0 deletions Documentation/devicetree/bindings/clock/samsung,s3c2443-clock.txt
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* Samsung S3C2443 Clock Controller

The S3C2443 clock controller generates and supplies clock to various controllers
within the SoC. The clock binding described here is applicable to all SoCs in
the s3c24x family starting with the s3c2443.

Required Properties:

- compatible: should be one of the following.
- "samsung,s3c2416-clock" - controller compatible with S3C2416 SoC.
- "samsung,s3c2443-clock" - controller compatible with S3C2443 SoC.
- "samsung,s3c2450-clock" - controller compatible with S3C2450 SoC.
- reg: physical base address of the controller and length of memory mapped
region.
- #clock-cells: should be 1.

Each clock is assigned an identifier and client nodes can use this identifier
to specify the clock which they consume. Some of the clocks are available only
on a particular SoC.

All available clocks are defined as preprocessor macros in
dt-bindings/clock/s3c2443.h header and can be used in device
tree sources.

External clocks:

There are several clocks that are generated outside the SoC. It is expected
that they are defined using standard clock bindings with following
clock-output-names:
- "xti" - crystal input - required,
- "ext" - external clock source - optional,
- "ext_i2s" - external I2S clock - optional,
- "ext_uart" - external uart clock - optional,

Example: Clock controller node:

clocks: clock-controller@4c000000 {
compatible = "samsung,s3c2416-clock";
reg = <0x4c000000 0x40>;
#clock-cells = <1>;
};

Example: UART controller node that consumes the clock generated by the clock
controller (refer to the standard clock bindings for information about
"clocks" and "clock-names" properties):

serial@50004000 {
compatible = "samsung,s3c2440-uart";
reg = <0x50004000 0x4000>;
interrupts = <1 23 3 4>, <1 23 4 4>;
clock-names = "uart", "clk_uart_baud2",
"clk_uart_baud3";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
<&clocks SCLK_UART>;
status = "disabled";
};
13 changes: 13 additions & 0 deletions arch/arm/boot/dts/s3c2416-smdk2416.dts
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Expand Up @@ -19,6 +19,19 @@
reg = <0x30000000 0x4000000>;
};

clocks {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;

xti: xti {
compatible = "fixed-clock";
clock-frequency = <12000000>;
clock-output-names = "xti";
#clock-cells = <0>;
};
};

serial@50000000 {
status = "okay";
pinctrl-names = "default";
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42 changes: 42 additions & 0 deletions arch/arm/boot/dts/s3c2416.dtsi
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Expand Up @@ -8,6 +8,7 @@
* published by the Free Software Foundation.
*/

#include <dt-bindings/clock/s3c2443.h>
#include "s3c24xx.dtsi"
#include "s3c2416-pinctrl.dtsi"

Expand All @@ -28,52 +29,93 @@
compatible = "samsung,s3c2416-irq";
};

clocks: clock-controller@0x4c000000 {
compatible = "samsung,s3c2416-clock";
reg = <0x4c000000 0x40>;
#clock-cells = <1>;
};

pinctrl@56000000 {
compatible = "samsung,s3c2416-pinctrl";
};

timer@51000000 {
clocks = <&clocks PCLK_PWM>;
clock-names = "timers";
};

serial@50000000 {
compatible = "samsung,s3c2440-uart";
clock-names = "uart", "clk_uart_baud2",
"clk_uart_baud3";
clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
<&clocks SCLK_UART>;
};

serial@50004000 {
compatible = "samsung,s3c2440-uart";
clock-names = "uart", "clk_uart_baud2",
"clk_uart_baud3";
clocks = <&clocks PCLK_UART1>, <&clocks PCLK_UART1>,
<&clocks SCLK_UART>;
};

serial@50008000 {
compatible = "samsung,s3c2440-uart";
clock-names = "uart", "clk_uart_baud2",
"clk_uart_baud3";
clocks = <&clocks PCLK_UART2>, <&clocks PCLK_UART2>,
<&clocks SCLK_UART>;
};

serial@5000C000 {
compatible = "samsung,s3c2440-uart";
reg = <0x5000C000 0x4000>;
interrupts = <1 18 24 4>, <1 18 25 4>;
clock-names = "uart", "clk_uart_baud2",
"clk_uart_baud3";
clocks = <&clocks PCLK_UART3>, <&clocks PCLK_UART3>,
<&clocks SCLK_UART>;
status = "disabled";
};

sdhci@4AC00000 {
compatible = "samsung,s3c6410-sdhci";
reg = <0x4AC00000 0x100>;
interrupts = <0 0 21 3>;
clock-names = "hsmmc", "mmc_busclk.0",
"mmc_busclk.2";
clocks = <&clocks HCLK_HSMMC0>, <&clocks HCLK_HSMMC0>,
<&clocks MUX_HSMMC0>;
status = "disabled";
};

sdhci@4A800000 {
compatible = "samsung,s3c6410-sdhci";
reg = <0x4A800000 0x100>;
interrupts = <0 0 20 3>;
clock-names = "hsmmc", "mmc_busclk.0",
"mmc_busclk.2";
clocks = <&clocks HCLK_HSMMC1>, <&clocks HCLK_HSMMC1>,
<&clocks MUX_HSMMC1>;
status = "disabled";
};

watchdog@53000000 {
interrupts = <1 9 27 3>;
clocks = <&clocks PCLK_WDT>;
clock-names = "watchdog";
};

rtc@57000000 {
compatible = "samsung,s3c2416-rtc";
clocks = <&clocks PCLK_RTC>;
clock-names = "rtc";
};

i2c@54000000 {
compatible = "samsung,s3c2440-i2c";
clocks = <&clocks PCLK_I2C0>;
clock-names = "i2c";
};
};
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