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Merge branch 'v3.16-next/clk-samsung' into v3.16-next/cpuidle-exynos
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kgene committed May 25, 2014
2 parents ccf5511 + 6520e96 commit 985326c
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41 changes: 41 additions & 0 deletions Documentation/devicetree/bindings/clock/exynos3250-clock.txt
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* Samsung Exynos3250 Clock Controller

The Exynos3250 clock controller generates and supplies clock to various
controllers within the Exynos3250 SoC.

Required Properties:

- compatible: should be one of the following.
- "samsung,exynos3250-cmu" - controller compatible with Exynos3250 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.

All available clocks are defined as preprocessor macros in
dt-bindings/clock/exynos3250.h header and can be used in device
tree sources.

Example 1: An example of a clock controller node is listed below.

cmu: clock-controller@10030000 {
compatible = "samsung,exynos3250-cmu";
reg = <0x10030000 0x20000>;
#clock-cells = <1>;
};

Example 2: 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' property.

serial@13800000 {
compatible = "samsung,exynos4210-uart";
reg = <0x13800000 0x100>;
interrupts = <0 109 0>;
clocks = <&cmu CLK_UART0>, <&cmu CLK_SCLK_UART0>;
clock-names = "uart", "clk_uart_baud0";
};
190 changes: 190 additions & 0 deletions Documentation/devicetree/bindings/clock/exynos5260-clock.txt
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* Samsung Exynos5260 Clock Controller

Exynos5260 has 13 clock controllers which are instantiated
independently from the device-tree. These clock controllers
generate and supply clocks to various hardware blocks within
the SoC.

Each clock is assigned an identifier and client nodes can use
this identifier to specify the clock which they consume. All
available clocks are defined as preprocessor macros in
dt-bindings/clock/exynos5260-clk.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:

- "fin_pll" - PLL input clock from XXTI
- "xrtcxti" - input clock from XRTCXTI
- "ioclk_pcm_extclk" - pcm external operation clock
- "ioclk_spdif_extclk" - spdif external operation clock
- "ioclk_i2s_cdclk" - i2s0 codec clock

Phy clocks:

There are several clocks which are generated by specific PHYs.
These clocks are fed into the clock controller and then routed to
the hardware blocks. These clocks are defined as fixed clocks in the
driver with following names:

- "phyclk_dptx_phy_ch3_txd_clk" - dp phy clock for channel 3
- "phyclk_dptx_phy_ch2_txd_clk" - dp phy clock for channel 2
- "phyclk_dptx_phy_ch1_txd_clk" - dp phy clock for channel 1
- "phyclk_dptx_phy_ch0_txd_clk" - dp phy clock for channel 0
- "phyclk_hdmi_phy_tmds_clko" - hdmi phy tmds clock
- "phyclk_hdmi_phy_pixel_clko" - hdmi phy pixel clock
- "phyclk_hdmi_link_o_tmds_clkhi" - hdmi phy for hdmi link
- "phyclk_dptx_phy_o_ref_clk_24m" - dp phy reference clock
- "phyclk_dptx_phy_clk_div2"
- "phyclk_mipi_dphy_4l_m_rxclkesc0"
- "phyclk_usbhost20_phy_phyclock" - usb 2.0 phy clock
- "phyclk_usbhost20_phy_freeclk"
- "phyclk_usbhost20_phy_clk48mohci"
- "phyclk_usbdrd30_udrd30_pipe_pclk"
- "phyclk_usbdrd30_udrd30_phyclock" - usb 3.0 phy clock

Required Properties for Clock Controller:

- compatible: should be one of the following.
1) "samsung,exynos5260-clock-top"
2) "samsung,exynos5260-clock-peri"
3) "samsung,exynos5260-clock-egl"
4) "samsung,exynos5260-clock-kfc"
5) "samsung,exynos5260-clock-g2d"
6) "samsung,exynos5260-clock-mif"
7) "samsung,exynos5260-clock-mfc"
8) "samsung,exynos5260-clock-g3d"
9) "samsung,exynos5260-clock-fsys"
10) "samsung,exynos5260-clock-aud"
11) "samsung,exynos5260-clock-isp"
12) "samsung,exynos5260-clock-gscl"
13) "samsung,exynos5260-clock-disp"

- reg: physical base address of the controller and the length of
memory mapped region.

- #clock-cells: should be 1.

- clocks: list of clock identifiers which are fed as the input to
the given clock controller. Please refer the next section to find
the input clocks for a given controller.

- clock-names: list of names of clocks which are fed as the input
to the given clock controller.

Input clocks for top clock controller:
- fin_pll
- dout_mem_pll
- dout_bus_pll
- dout_media_pll

Input clocks for peri clock controller:
- fin_pll
- ioclk_pcm_extclk
- ioclk_i2s_cdclk
- ioclk_spdif_extclk
- phyclk_hdmi_phy_ref_cko
- dout_aclk_peri_66
- dout_sclk_peri_uart0
- dout_sclk_peri_uart1
- dout_sclk_peri_uart2
- dout_sclk_peri_spi0_b
- dout_sclk_peri_spi1_b
- dout_sclk_peri_spi2_b
- dout_aclk_peri_aud
- dout_sclk_peri_spi0_b

Input clocks for egl clock controller:
- fin_pll
- dout_bus_pll

Input clocks for kfc clock controller:
- fin_pll
- dout_media_pll

Input clocks for g2d clock controller:
- fin_pll
- dout_aclk_g2d_333

Input clocks for mif clock controller:
- fin_pll

Input clocks for mfc clock controller:
- fin_pll
- dout_aclk_mfc_333

Input clocks for g3d clock controller:
- fin_pll

Input clocks for fsys clock controller:
- fin_pll
- phyclk_usbhost20_phy_phyclock
- phyclk_usbhost20_phy_freeclk
- phyclk_usbhost20_phy_clk48mohci
- phyclk_usbdrd30_udrd30_pipe_pclk
- phyclk_usbdrd30_udrd30_phyclock
- dout_aclk_fsys_200

Input clocks for aud clock controller:
- fin_pll
- fout_aud_pll
- ioclk_i2s_cdclk
- ioclk_pcm_extclk

Input clocks for isp clock controller:
- fin_pll
- dout_aclk_isp1_266
- dout_aclk_isp1_400
- mout_aclk_isp1_266

Input clocks for gscl clock controller:
- fin_pll
- dout_aclk_gscl_400
- dout_aclk_gscl_333

Input clocks for disp clock controller:
- fin_pll
- phyclk_dptx_phy_ch3_txd_clk
- phyclk_dptx_phy_ch2_txd_clk
- phyclk_dptx_phy_ch1_txd_clk
- phyclk_dptx_phy_ch0_txd_clk
- phyclk_hdmi_phy_tmds_clko
- phyclk_hdmi_phy_ref_clko
- phyclk_hdmi_phy_pixel_clko
- phyclk_hdmi_link_o_tmds_clkhi
- phyclk_mipi_dphy_4l_m_txbyte_clkhs
- phyclk_dptx_phy_o_ref_clk_24m
- phyclk_dptx_phy_clk_div2
- phyclk_mipi_dphy_4l_m_rxclkesc0
- phyclk_hdmi_phy_ref_cko
- ioclk_spdif_extclk
- dout_aclk_peri_aud
- dout_aclk_disp_222
- dout_sclk_disp_pixel
- dout_aclk_disp_333

Example 1: An example of a clock controller node is listed below.

clock_mfc: clock-controller@11090000 {
compatible = "samsung,exynos5260-clock-mfc";
clock = <&fin_pll>, <&clock_top TOP_DOUT_ACLK_MFC_333>;
clock-names = "fin_pll", "dout_aclk_mfc_333";
reg = <0x11090000 0x10000>;
#clock-cells = <1>;
};

Example 2: UART controller node that consumes the clock generated by the
peri clock controller. Refer to the standard clock bindings for
information about 'clocks' and 'clock-names' property.

serial@12C00000 {
compatible = "samsung,exynos4210-uart";
reg = <0x12C00000 0x100>;
interrupts = <0 146 0>;
clocks = <&clock_peri PERI_PCLK_UART0>, <&clock_peri PERI_SCLK_UART0>;
clock-names = "uart", "clk_uart_baud0";
};

3 changes: 2 additions & 1 deletion Documentation/devicetree/bindings/clock/exynos5420-clock.txt
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* Samsung Exynos5420 Clock Controller

The Exynos5420 clock controller generates and supplies clock to various
controllers within the Exynos5420 SoC.
controllers within the Exynos5420 SoC and for the Exynos5800 SoC.

Required Properties:

- compatible: should be one of the following.
- "samsung,exynos5420-clock" - controller compatible with Exynos5420 SoC.
- "samsung,exynos5800-clock" - controller compatible with Exynos5800 SoC.

- reg: physical base address of the controller and length of memory mapped
region.
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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/s3c2410.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";
};
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