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/linux/Documentation/devicetree/bindings/soc/bcm/
H A Dbrcm,bcm2835-pm.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/soc/bcm/brcm,bcm2835-pm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: BCM2835 PM (Power domains, watchdog)
10 The PM block controls power domains and some reset lines, and includes a
14 - Nicolas Saenz Julienne <nsaenz@kernel.org>
17 - $ref: /schemas/watchdog/watchdog.yaml#
22 - enum:
23 - brcm,bcm2835-pm
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/linux/drivers/mfd/
H A Dbcm2835-pm.c1 // SPDX-License-Identifier: GPL-2.0+
3 * PM MFD driver for Broadcom BCM2835
6 * the WDT and power drivers.
11 #include <linux/mfd/bcm2835-pm.h>
21 { .name = "bcm2835-wdt" },
25 { .name = "bcm2835-power" },
31 if (of_property_present(pm->dev->of_node, "reg-names")) { in bcm2835_pm_get_pdata()
34 pm->base = devm_platform_ioremap_resource_byname(pdev, "pm"); in bcm2835_pm_get_pdata()
35 if (IS_ERR(pm->base)) in bcm2835_pm_get_pdata()
36 return PTR_ERR(pm->base); in bcm2835_pm_get_pdata()
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/linux/arch/arm/boot/dts/broadcom/
H A Dbcm2835-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
4 * bcm2835, bcm2836 and bcm2837 implementations.
8 interrupt-parent = <&intc>;
11 dma: dma-controller@7e007000 {
12 compatible = "brcm,bcm2835-dma";
25 /* dma channel 11-14 share one irq */
32 interrupt-names = "dma0",
47 "dma-shared-all";
48 #dma-cells = <1>;
49 brcm,dma-channel-mask = <0x7f35>;
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H A Dbcm2835-rpi.dtsi1 #include <dt-bindings/power/raspberrypi-power.h>
6 compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
10 compatible = "raspberrypi,firmware-clocks";
11 #clock-cells = <1>;
15 power: power { label
16 compatible = "raspberrypi,bcm2835-power";
18 #power-domain-cells = <1>;
22 compatible = "brcm,bcm2835-vchiq";
32 clock-names = "lp", "vpu";
33 power-domains = <&power RPI_POWER_DOMAIN_UNICAM0>;
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H A Dbcm2835-rpi-b.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9512.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
11 compatible = "raspberrypi,model-b", "brcm,bcm2835";
22 * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
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H A Dbcm2835-rpi-zero.dts1 // SPDX-License-Identifier: GPL-2.0+
6 /dts-v1/;
7 #include "bcm2835.dtsi"
8 #include "bcm2835-rpi.dtsi"
9 #include "bcm2835-rpi-common.dtsi"
10 #include "bcm283x-rpi-led-deprecated.dtsi"
11 #include "bcm283x-rpi-usb-otg.dtsi"
14 compatible = "raspberrypi,model-zero", "brcm,bcm2835";
31 gpio-line-names = "ID_SDA",
88 pinctrl-names = "default";
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H A Dbcm2835-rpi-b-plus.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9514.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
11 compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
22 * Taken from Raspberry-Pi-B-Plus-V1.2-Schematics.pdf
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H A Dbcm2835-rpi-zero-w.dts1 // SPDX-License-Identifier: GPL-2.0+
6 /dts-v1/;
7 #include "bcm2835.dtsi"
8 #include "bcm2835-rpi.dtsi"
9 #include "bcm2835-rpi-common.dtsi"
10 #include "bcm283x-rpi-led-deprecated.dtsi"
11 #include "bcm283x-rpi-usb-otg.dtsi"
12 #include "bcm283x-rpi-wifi-bt.dtsi"
15 compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
25 stdout-path = "serial1:115200n8";
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H A Dbcm2835-rpi-b-rev2.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9512.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
11 compatible = "raspberrypi,model-b-rev2", "brcm,bcm2835";
22 * Taken from Raspberry-Pi-Rev-2.0-Model-AB-Schematics.pdf
[all …]
H A Dbcm2835-rpi-a.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-usb-host.dtsi"
10 compatible = "raspberrypi,model-a", "brcm,bcm2835";
21 * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
28 gpio-line-names = "SDA0",
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H A Dbcm2835-rpi-a-plus.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-usb-host.dtsi"
10 compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";
27 gpio-line-names = "ID_SDA",
84 pinctrl-names = "default";
[all …]
H A Dbcm2835-rpi-cm1-io1.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835-rpi-cm1.dtsi"
4 #include "bcm283x-rpi-usb-host.dtsi"
7 compatible = "raspberrypi,compute-module", "brcm,bcm2835";
19 gpio-line-names = "GPIO0",
76 pinctrl-names = "default";
77 pinctrl-0 = <&gpioout &alt0>;
81 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
82 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
[all …]
H A Dbcm2711.dtsi1 // SPDX-License-Identifier: GPL-2.0
4 #include <dt-bindings/interrupt-controller/arm-gic.h>
5 #include <dt-bindings/soc/bcm2835-pm.h>
10 #address-cells = <2>;
11 #size-cells = <1>;
13 interrupt-parent = <&gicv2>;
16 compatible = "brcm,bcm2711-vc5";
20 clk_27MHz: clk-27M {
21 #clock-cells = <0>;
22 compatible = "fixed-clock";
[all …]
H A Dbcm2835-rpi-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
4 * bcm2835, bcm2836 and bcm2837 implementations that interact with RPi's
8 #include <dt-bindings/power/raspberrypi-power.h>
13 clock-names = "pixel", "hdmi";
17 power-domains = <&power RPI_POWER_DOMAIN_V3D>;
/linux/Documentation/devicetree/bindings/media/
H A Dbrcm,bcm2835-unicam.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/brcm,bcm2835-unicam.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
12 description: |-
14 CSI-2 or CCP2 data from image sensors or similar devices.
26 const: brcm,bcm2835-unicam
30 - description: Unicam block.
31 - description: Clock Manager Image (CMI) block.
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/linux/drivers/pmdomain/bcm/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
5 bool "BCM2835 power domain driver"
11 This enables support for the BCM2835 power domains and reset
12 controller. Any usage of power domains by the Raspberry Pi
13 firmware means that Linux usage of the same power domain
17 bool "Raspberry Pi power domain driver"
22 This enables support for the RPi power domains which can be enabled
26 bool "Broadcom PMB (Power Management Bus) driver"
31 This enables support for the Broadcom's PMB (Power Management Bus) that
35 bool "BCM63xx power domain driver"
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H A Dbcm2835-power.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Power domain driver for Broadcom BCM2835
8 #include <dt-bindings/soc/bcm2835-pm.h>
12 #include <linux/mfd/bcm2835-pm.h>
16 #include <linux/reset-controller.h>
61 /* The power gates must be enabled with this bit before enabling the LDO in the
109 #define PM_READ(reg) readl(power->base + (reg))
110 #define PM_WRITE(reg, val) writel(PM_PASSWORD | (val), power->base + (reg))
133 struct bcm2835_power *power; member
152 static int bcm2835_asb_control(struct bcm2835_power *power, u32 reg, bool enable) in bcm2835_asb_control() argument
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H A Draspberrypi-power.c1 // SPDX-License-Identifier: GPL-2.0
13 #include <dt-bindings/power/raspberrypi-power.h>
14 #include <soc/bcm2835/raspberrypi-firmware.h>
17 * Firmware indices for the old power domains interface. Only a few
48 * Asks the firmware to enable or disable power on a specific power
55 bool old_interface = rpi_domain->old_interface; in rpi_firmware_set_power()
59 packet.domain = rpi_domain->domain; in rpi_firmware_set_power()
62 ret = rpi_firmware_property(rpi_domain->fw, old_interface ? in rpi_firmware_set_power()
67 dev_err(&domain->dev, "Failed to set %s to %u (%d)\n", in rpi_firmware_set_power()
68 old_interface ? "power" : "domain", on, ret); in rpi_firmware_set_power()
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H A DMakefile1 # SPDX-License-Identifier: GPL-2.0-only
2 obj-$(CONFIG_BCM_PMB) += bcm-pmb.o
3 obj-$(CONFIG_BCM2835_POWER) += bcm2835-power.o
4 obj-$(CONFIG_BCM63XX_POWER) += bcm63xx-power.o
5 obj-$(CONFIG_RASPBERRYPI_POWER) += raspberrypi-power.o
/linux/Documentation/devicetree/bindings/display/
H A Dbrcm,bcm2835-vec.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/brcm,bcm2835-vec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eric Anholt <eric@anholt.net>
15 - brcm,bcm2711-vec
16 - brcm,bcm2835-vec
27 power-domains:
31 - compatible
32 - reg
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H A Dbrcm,bcm2835-dsi0.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/brcm,bcm2835-dsi0.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eric Anholt <eric@anholt.net>
13 - $ref: dsi-controller.yaml#
16 "#clock-cells":
21 - brcm,bcm2711-dsi1
22 - brcm,bcm2835-dsi0
23 - brcm,bcm2835-dsi1
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H A Dbrcm,bcm2835-hdmi.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/brcm,bcm2835-hdmi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eric Anholt <eric@anholt.net>
14 const: brcm,bcm2835-hdmi
18 - description: HDMI register range
19 - description: HD register range
26 - description: The pixel clock
27 - description: The HDMI state machine clock
[all …]
H A Dbrcm,bcm2835-v3d.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/display/brcm,bcm2835-v3d.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eric Anholt <eric@anholt.net>
15 - brcm,bcm2835-v3d
16 - brcm,cygnus-v3d
27 power-domains:
31 - compatible
32 - reg
[all …]
/linux/drivers/watchdog/
H A Dbcm2835_wdt.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Watchdog driver for Broadcom BCM2835
6 * branch "rpi-3.6.y" of git://github.com/raspberrypi/linux.git was used
7 * as a hardware reference for the Broadcom BCM2835 watchdog timer.
15 #include <linux/mfd/bcm2835-pm.h>
61 cur = readl(wdt->base + PM_RSTC); in bcm2835_wdt_is_running()
72 spin_lock_irqsave(&wdt->lock, flags); in bcm2835_wdt_start()
74 writel_relaxed(PM_PASSWORD | (SECS_TO_WDOG_TICKS(wdog->timeout) & in bcm2835_wdt_start()
75 PM_WDOG_TIME_SET), wdt->base + PM_WDOG); in bcm2835_wdt_start()
76 cur = readl_relaxed(wdt->base + PM_RSTC); in bcm2835_wdt_start()
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/linux/Documentation/hwmon/
H A Dsbrmi.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
8 * Sideband Remote Management Interface (SB-RMI) compliant AMD SoC
15 To instantiate this driver on an AMD CPU with SB-RMI
22 As mentioned in AMD's APML specification, The SB-RMI address is
27 Datasheet: The SB-RMI interface and protocol along with the Advanced
31 https://www.amd.com/en/support/tech-docs?keyword=55898
36 -----------
39 (SB-RMI) module from the external SMBus master that can be used to report socket
40 power on AMD platforms using mailbox command and resembles a typical 8-pin remote
41 power sensor's I2C interface to BMC.
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