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Add A10/A20 SPI overlays to use for enabling the SPI bus

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This allows easily setting up the SPI bus and enabling the pinmux for it
(since compared to H3, H5 and A64 the base DT doesn't add pinctrl-*
entries to the SPI controllers)
This commit is contained in:
zador-blood-stained
2017-08-17 17:56:47 +03:00
parent 665a8a2d2d
commit 92f10ef13e
12 changed files with 199 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
sun4i-a10/README.sun4i-a10-overlays
View File

@@ -26,6 +26,9 @@ I2C bus 0 is used for the AXP209 PMIC
- pps-gpio
- pwm
- spdif-out
- spi0
- spi1
- spi2
- spi-jedec-nor
- spi-spidev
- uart1
@@ -110,6 +113,35 @@ Activates SPDIF/Toslink audio output
SPDIF pin: PB13
### spi0
Activates SPI controller 0 to use it with other overlays and sets up the pin multiplexing for it
SPI 0 pins (MOSI, MISO, SCK, CS0, CS1): PI12, PI13, PI11, PI10, PI14
### spi1
Activates SPI controller 1 to use it with other overlays and sets up the pin multiplexing for it
SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
### spi2
Activates SPI controller 2 to use it with other overlays and sets up the pin multiplexing for it
SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
Parameters:
param_spi2_bus_pins (char)
SPI bus 2 pinmux variant
Optional
Default: a
Supported values: a, b
Determines what pins SPI bus 2 is exposed on if SPI 2 is used
### spi-jedec-nor
Activates MTD support for JEDEC compatible SPI NOR flash chips on SPI bus
@@ -127,13 +159,6 @@ param_spinor_spi_bus (int)
Required
Supported values: 0, 1, 2
param_spi2_bus_pins (char)
SPI bus 2 pinmux variant
Optional
Default: a
Supported values: a, b
Determines what pins SPI bus 2 is exposed on if SPI 2 is used by any overlay
param_spinor_max_freq (int)
Maximum SPI frequency
Optional
@@ -157,13 +182,6 @@ param_spidev_spi_bus (int)
Required
Supported values: 0, 1, 2
param_spi2_bus_pins (char)
SPI bus 2 pinmux variant
Optional
Default: a
Supported values: a, b
Determines what pins SPI bus 2 is exposed on if SPI 2 is used by any overlay
param_spidev_max_freq (int)
Maximum SPIdev frequency
Optional

8
sun4i-a10/sun4i-a10-spi-jedec-nor.dts
View File

@@ -16,9 +16,6 @@
fragment@1 {
target = <&spi0>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi0_pins_a>;
pinctrl-1 = <&spi0_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spiflash {
@@ -33,8 +30,6 @@
fragment@2 {
target = <&spi1>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spiflash {
@@ -49,9 +44,6 @@
fragment@3 {
target = <&spi2>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi2_pins_a>;
pinctrl-1 = <&spi2_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spiflash {

8
sun4i-a10/sun4i-a10-spi-spidev.dts
View File

@@ -16,9 +16,6 @@
fragment@1 {
target = <&spi0>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi0_pins_a>;
pinctrl-1 = <&spi0_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spidev {
@@ -33,8 +30,6 @@
fragment@2 {
target = <&spi1>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spidev {
@@ -49,9 +44,6 @@
fragment@3 {
target = <&spi2>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi2_pins_a>;
pinctrl-1 = <&spi2_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spidev {

23
sun4i-a10/sun4i-a10-spi0.dts Normal file
View File

@@ -0,0 +1,23 @@
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun7i-a20";
fragment@0 {
target-path = "/aliases";
__overlay__ {
spi0 = "/soc/spi@01c05000";
};
};
fragment@1 {
target = <&spi0>;
__overlay__ {
status = "okay";
pinctrl-names = "default", "default";
pinctrl-0 = <&spi0_pins_a>;
pinctrl-1 = <&spi0_cs0_pins_a>;
};
};
};

22
sun4i-a10/sun4i-a10-spi1.dts Normal file
View File

@@ -0,0 +1,22 @@
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun7i-a20";
fragment@0 {
target-path = "/aliases";
__overlay__ {
spi1 = "/soc/spi@01c06000";
};
};
fragment@1 {
target = <&spi1>;
__overlay__ {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
};
};
};

23
sun4i-a10/sun4i-a10-spi2.dts Normal file
View File

@@ -0,0 +1,23 @@
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun7i-a20";
fragment@0 {
target-path = "/aliases";
__overlay__ {
spi2 = "/soc/spi@01c17000";
};
};
fragment@1 {
target = <&spi2>;
__overlay__ {
status = "okay";
pinctrl-names = "default", "default";
pinctrl-0 = <&spi2_pins_a>;
pinctrl-1 = <&spi2_cs0_pins_a>;
};
};
};

45
sun7i-a20/README.sun7i-a20-overlays
View File

@@ -29,6 +29,9 @@ I2C bus 0 is used for the AXP209 PMIC
- pps-gpio
- pwm
- spdif-out
- spi0
- spi1
- spi2
- spi-add-cs1
- spi-jedec-nor
- spi-spidev
@@ -146,6 +149,34 @@ Activates SPDIF/Toslink audio output
SPDIF pin: PB13
### spi0
Activates SPI controller 0 to use it with other overlays and sets up the pin multiplexing for it
SPI 0 pins (MOSI, MISO, SCK, CS0, CS1): PI12, PI13, PI11, PI10, PI14
### spi1
Activates SPI controller 1 to use it with other overlays and sets up the pin multiplexing for it
SPI 1 pins (MOSI, MISO, SCK, CS0): PI18, PI19, PI17, PI16
### spi2
Activates SPI controller 2 to use it with other overlays and sets up the pin multiplexing for it
SPI 2 pins a (MOSI, MISO, SCK, CS0): PC21, PC22, PC20, PC19
SPI 2 pins b (MOSI, MISO, SCK, CS0): PB16, PB17, PB15, PB14
Parameters:
param_spi2_bus_pins (char)
SPI bus 2 pinmux variant
Optional
Default: a
Supported values: a, b
Determines what pins SPI bus 2 is exposed on if SPI 2 is used
### spi-add-cs1
Activates SPI chip select 1 on SPI controller 0
@@ -177,13 +208,6 @@ param_spinor_spi_cs (int)
Supported values: 0, 1
Using chip select 1 on SPI 0 requires using "spi-add-cs1" overlay
param_spi2_bus_pins (char)
SPI bus 2 pinmux variant
Optional
Default: a
Supported values: a, b
Determines what pins SPI bus 2 is exposed on if SPI 2 is used by any overlay
param_spinor_max_freq (int)
Maximum SPI frequency
Optional
@@ -214,13 +238,6 @@ param_spidev_spi_cs (int)
Supported values: 0, 1
Using chip select 1 on SPI 0 requires using "spi-add-cs1" overlay
param_spi2_bus_pins (char)
SPI bus 2 pinmux variant
Optional
Default: a
Supported values: a, b
Determines what pins SPI bus 2 is exposed on if SPI 2 is used by any overlay
param_spidev_max_freq (int)
Maximum SPIdev frequency
Optional

8
sun7i-a20/sun7i-a20-spi-jedec-nor.dts
View File

@@ -16,9 +16,6 @@
fragment@1 {
target = <&spi0>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi0_pins_a>;
pinctrl-1 = <&spi0_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spiflash {
@@ -33,8 +30,6 @@
fragment@2 {
target = <&spi1>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spiflash {
@@ -49,9 +44,6 @@
fragment@3 {
target = <&spi2>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi2_pins_a>;
pinctrl-1 = <&spi2_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spiflash {

8
sun7i-a20/sun7i-a20-spi-spidev.dts
View File

@@ -16,9 +16,6 @@
fragment@1 {
target = <&spi0>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi0_pins_a>;
pinctrl-1 = <&spi0_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spidev {
@@ -33,8 +30,6 @@
fragment@2 {
target = <&spi1>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spidev {
@@ -49,9 +44,6 @@
fragment@3 {
target = <&spi2>;
__overlay__ {
pinctrl-names = "default", "default";
pinctrl-0 = <&spi2_pins_a>;
pinctrl-1 = <&spi2_cs0_pins_a>;
#address-cells = <1>;
#size-cells = <0>;
spidev {

23
sun7i-a20/sun7i-a20-spi0.dts Normal file
View File

@@ -0,0 +1,23 @@
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun7i-a20";
fragment@0 {
target-path = "/aliases";
__overlay__ {
spi0 = "/soc/spi@01c05000";
};
};
fragment@1 {
target = <&spi0>;
__overlay__ {
status = "okay";
pinctrl-names = "default", "default";
pinctrl-0 = <&spi0_pins_a>;
pinctrl-1 = <&spi0_cs0_pins_a>;
};
};
};

22
sun7i-a20/sun7i-a20-spi1.dts Normal file
View File

@@ -0,0 +1,22 @@
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun7i-a20";
fragment@0 {
target-path = "/aliases";
__overlay__ {
spi1 = "/soc/spi@01c06000";
};
};
fragment@1 {
target = <&spi1>;
__overlay__ {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi1_pins_a>, <&spi1_cs0_pins_a>;
};
};
};

23
sun7i-a20/sun7i-a20-spi2.dts Normal file
View File

@@ -0,0 +1,23 @@
/dts-v1/;
/plugin/;
/ {
compatible = "allwinner,sun7i-a20";
fragment@0 {
target-path = "/aliases";
__overlay__ {
spi2 = "/soc/spi@01c17000";
};
};
fragment@1 {
target = <&spi2>;
__overlay__ {
status = "okay";
pinctrl-names = "default", "default";
pinctrl-0 = <&spi2_pins_a>;
pinctrl-1 = <&spi2_cs0_pins_a>;
};
};
};