mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 20:43:23 +07:00
c4bb978217
All RPi 1 and 2 boards used the PWM (audio out) on pin 40 and 45. So it was easy to define them in bcm2835-rpi.dtsi. Starting with RPi 3 this wont work anymore, because it uses pin 40 and 41. Furthermore the Zero variants doesn't have audio out. This patch fixes this pin conflict by moving the PWM node to the board-level. Change summary: RPi 3 B: PWM1 45 -> 41 Zero, Zero W: PWM disabled all other: no functional change Reported-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Eric Anholt <eric@anholt.net>
110 lines
2.1 KiB
Plaintext
110 lines
2.1 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
|
|
/dts-v1/;
|
|
#include "bcm2835.dtsi"
|
|
#include "bcm2835-rpi.dtsi"
|
|
#include "bcm283x-rpi-usb-host.dtsi"
|
|
|
|
/ {
|
|
compatible = "raspberrypi,model-a", "brcm,bcm2835";
|
|
model = "Raspberry Pi Model A";
|
|
|
|
leds {
|
|
act {
|
|
gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
|
|
};
|
|
};
|
|
};
|
|
|
|
&gpio {
|
|
/*
|
|
* Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
|
|
* RPI00021 sheet 02
|
|
*
|
|
* Legend:
|
|
* "NC" = not connected (no rail from the SoC)
|
|
* "FOO" = GPIO line named "FOO" on the schematic
|
|
* "FOO_N" = GPIO line named "FOO" on schematic, active low
|
|
*/
|
|
gpio-line-names = "SDA0",
|
|
"SCL0",
|
|
"SDA1",
|
|
"SCL1",
|
|
"GPIO_GCLK",
|
|
"CAM_GPIO1",
|
|
"LAN_RUN",
|
|
"SPI_CE1_N",
|
|
"SPI_CE0_N",
|
|
"SPI_MISO",
|
|
"SPI_MOSI",
|
|
"SPI_SCLK",
|
|
"NC", /* GPIO12 */
|
|
"NC", /* GPIO13 */
|
|
/* Serial port */
|
|
"TXD0",
|
|
"RXD0",
|
|
"STATUS_LED_N",
|
|
"GPIO17",
|
|
"GPIO18",
|
|
"NC", /* GPIO19 */
|
|
"NC", /* GPIO20 */
|
|
"GPIO21",
|
|
"GPIO22",
|
|
"GPIO23",
|
|
"GPIO24",
|
|
"GPIO25",
|
|
"NC", /* GPIO26 */
|
|
"CAM_GPIO0",
|
|
/* Binary number representing build/revision */
|
|
"CONFIG0",
|
|
"CONFIG1",
|
|
"CONFIG2",
|
|
"CONFIG3",
|
|
"NC", /* GPIO32 */
|
|
"NC", /* GPIO33 */
|
|
"NC", /* GPIO34 */
|
|
"NC", /* GPIO35 */
|
|
"NC", /* GPIO36 */
|
|
"NC", /* GPIO37 */
|
|
"NC", /* GPIO38 */
|
|
"NC", /* GPIO39 */
|
|
"PWM0_OUT",
|
|
"NC", /* GPIO41 */
|
|
"NC", /* GPIO42 */
|
|
"NC", /* GPIO43 */
|
|
"NC", /* GPIO44 */
|
|
"PWM1_OUT",
|
|
"HDMI_HPD_P",
|
|
"SD_CARD_DET",
|
|
/* Used by SD Card */
|
|
"SD_CLK_R",
|
|
"SD_CMD_R",
|
|
"SD_DATA0_R",
|
|
"SD_DATA1_R",
|
|
"SD_DATA2_R",
|
|
"SD_DATA3_R";
|
|
|
|
pinctrl-0 = <&gpioout &alt0 &i2s_alt2>;
|
|
|
|
/* I2S interface */
|
|
i2s_alt2: i2s_alt2 {
|
|
brcm,pins = <28 29 30 31>;
|
|
brcm,function = <BCM2835_FSEL_ALT2>;
|
|
};
|
|
};
|
|
|
|
&hdmi {
|
|
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
|
|
&pwm {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
|
|
status = "okay";
|
|
};
|
|
|
|
&uart0 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&uart0_gpio14>;
|
|
status = "okay";
|
|
};
|