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/linux-6.12.1/Documentation/devicetree/bindings/timer/
Dbrcm,bcm2835-system-timer.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/timer/brcm,bcm2835-system-timer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: BCM2835 System Timer
10 - Stefan Wahren <wahrenst@gmx.net>
11 - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
14 The System Timer peripheral provides four 32-bit timer channels and a
15 single 64-bit free running counter. Each channel has an output compare
21 const: brcm,bcm2835-system-timer
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/linux-6.12.1/drivers/clocksource/
Dbcm2835_timer.c1 // SPDX-License-Identifier: GPL-2.0+
46 struct bcm2835_timer *timer = container_of(evt_dev, in bcm2835_time_set_next_event() local
49 timer->compare); in bcm2835_time_set_next_event()
55 struct bcm2835_timer *timer = dev_id; in bcm2835_time_interrupt() local
57 if (readl_relaxed(timer->control) & timer->match_mask) { in bcm2835_time_interrupt()
58 writel_relaxed(timer->match_mask, timer->control); in bcm2835_time_interrupt()
60 event_handler = READ_ONCE(timer->evt.event_handler); in bcm2835_time_interrupt()
62 event_handler(&timer->evt); in bcm2835_time_interrupt()
74 struct bcm2835_timer *timer; in bcm2835_timer_init() local
79 return -ENXIO; in bcm2835_timer_init()
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DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
36 bool "BCM2835 timer driver" if COMPILE_TEST
39 Enables the support for the BCM2835 timer driver.
42 bool "BCM mobile timer driver" if COMPILE_TEST
45 Enables the support for the BCM Kona mobile timer driver.
48 bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST
50 Enables the support for the TI DaVinci timer driver.
53 bool "Digicolor timer driver" if COMPILE_TEST
57 Enables the support for the digicolor timer driver.
60 bool "OMAP dual-mode timer driver" if ARCH_K3 || COMPILE_TEST
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/linux-6.12.1/Documentation/devicetree/bindings/soc/bcm/
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)
11 watchdog timer.
14 - Nicolas Saenz Julienne <nsaenz@kernel.org>
17 - $ref: /schemas/watchdog/watchdog.yaml#
22 - enum:
23 - brcm,bcm2835-pm
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/linux-6.12.1/arch/arm/boot/dts/broadcom/
Dbcm283x.dtsi1 #include <dt-bindings/pinctrl/bcm2835.h>
2 #include <dt-bindings/clock/bcm2835.h>
3 #include <dt-bindings/clock/bcm2835-aux.h>
4 #include <dt-bindings/gpio/gpio.h>
5 #include <dt-bindings/interrupt-controller/irq.h>
6 #include <dt-bindings/soc/bcm2835-pm.h>
8 /* firmware-provided startup stubs live here, where the secondary CPUs are
14 * bcm2835 and bcm2836 implementations, leaving the CPU configuration to
15 * bcm2835.dtsi and bcm2836.dtsi.
19 compatible = "brcm,bcm2835";
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Dbcm2837.dtsi2 #include "bcm2835-common.dtsi"
10 dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
12 local_intc: interrupt-controller@40000000 {
13 compatible = "brcm,bcm2836-l1-intc";
15 interrupt-controller;
16 #interrupt-cells = <2>;
17 interrupt-parent = <&local_intc>;
21 arm-pmu {
22 compatible = "arm,cortex-a53-pmu";
23 interrupt-parent = <&local_intc>;
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Dbcm2836.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 #include "bcm2835-common.dtsi"
11 dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
13 local_intc: interrupt-controller@40000000 {
14 compatible = "brcm,bcm2836-l1-intc";
16 interrupt-controller;
17 #interrupt-cells = <2>;
18 interrupt-parent = <&local_intc>;
22 arm-pmu {
23 compatible = "arm,cortex-a7-pmu";
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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";
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/linux-6.12.1/arch/arm64/boot/dts/broadcom/
Dbcm2712.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 #include <dt-bindings/interrupt-controller/arm-gic.h>
7 #address-cells = <2>;
8 #size-cells = <2>;
10 interrupt-parent = <&gicv2>;
14 clk_osc: clk-osc {
15 compatible = "fixed-clock";
16 #clock-cells = <0>;
17 clock-output-names = "osc";
18 clock-frequency = <54000000>;
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/linux-6.12.1/drivers/watchdog/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
8 bool "Watchdog Timer Support"
16 on-line as fast as possible after a lock-up. There's both a watchdog
21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon
34 tristate "WatchDog Timer Driver Core"
36 Say Y here if you want to use the new watchdog timer driver core.
37 This driver provides a framework for all watchdog timer drivers
45 to stop the timer if the process managing it closes the file
51 bool "Update boot-enabled watchdog until userspace takes over"
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/linux-6.12.1/drivers/clk/bcm/
Dclk-bcm2835.c1 // SPDX-License-Identifier: GPL-2.0+
8 * DOC: BCM2835 CPRMAN (clock manager for the "audio" domain)
27 #include <linux/clk-provider.h>
38 #include <dt-bindings/clock/bcm2835.h>
45 # define CM_DIV_FRAC_MASK GENMASK(CM_DIV_FRAC_BITS - 1, 0)
253 # define A2W_PLL_FRAC_MASK ((1 << A2W_PLL_FRAC_BITS) - 1)
337 writel(CM_PASSWORD | val, cprman->regs + reg); in cprman_write()
342 return readl(cprman->regs + reg); in cprman_read()
346 * source from many other clocks in the system.
355 spin_lock(&cprman->regs_lock); in bcm2835_measure_tcnt_mux()
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/linux-6.12.1/drivers/tty/serial/8250/
D8250_port.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Base port operations for 8250/16550-type serial ports
244 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
245 * workaround of errata A-008006 which states that tx_loadsz should
257 .name = "Palmchip BK-3103",
343 offset = offset << p->regshift; in hub6_serial_in()
344 outb(p->hub6 - 1 + offset, p->iobase); in hub6_serial_in()
345 return inb(p->iobase + 1); in hub6_serial_in()
350 offset = offset << p->regshift; in hub6_serial_out()
351 outb(p->hub6 - 1 + offset, p->iobase); in hub6_serial_out()
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/linux-6.12.1/
DMAINTAINERS5 ---------------------------------------------------
19 it has been replaced by a better system and you
21 W: *Web-page* with status/info
22 Q: *Patchwork* web based patch tracking system site
23 B: URI for where to file *bugs*. A web-page with detailed bug
28 patches to the given subsystem. This is either an in-tree file,
29 or a URI. See Documentation/maintainer/maintainer-entry-profile.rst
46 N: [^a-z]tegra all files whose path contains tegra
64 ----------------
83 3WARE SAS/SATA-RAID SCSI DRIVERS (3W-XXXX, 3W-9XXX, 3W-SAS)
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