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/linux/Documentation/arch/arm/stm32/
H A Dstm32f429-overview.rst6 ------------
8 The STM32F429 is a Cortex-M4 MCU aimed at various applications.
11 - ARM Cortex-M4 up to 180MHz with FPU
12 - 2MB internal Flash Memory
13 - External memory support through FMC controller (PSRAM, SDRAM, NOR, NAND)
14 - I2C, SPI, SAI, CAN, USB OTG, Ethernet controllers
15 - LCD controller & Camera interface
16 - Cryptographic processor
19 ---------
23 …www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1577/LN1806?ecmp=stm32f429-439_pron_pr-ces2014_nov2013
/linux/arch/arm/boot/dts/nxp/vf/
H A Dvf610m4-colibri.dts1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
3 * Device tree for Colibri VF61 Cortex-M4 support
8 /dts-v1/;
12 model = "VF610 Cortex-M4";
17 stdout-path = "serial2:115200";
47 pinctrl-names = "default";
48 pinctrl-0 = <&pinctrl_uart2>;
H A Dvf610m4-cosmic.dts2 * Device tree for Cosmic+ VF6xx Cortex-M4 support
8 * This file is dual-licensed: you can use it either under the terms
47 /dts-v1/;
51 model = "VF610 Cortex-M4";
76 pinctrl-names = "default";
77 pinctrl-0 = <&pinctrl_uart3>;
/linux/arch/arm/mm/
H A Dproc-v7m.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/arch/arm/mm/proc-v7m.S
8 * This is the "shell" of the ARMv7-M processor support.
15 #include "proc-macros.S"
32 * - loc - location to jump to for soft reset
105 * This should be able to cover all ARMv7-M cores.
141 ldmia sp, {r0-r3, r12}
145 @ Special-purpose control register
151 stmiane sp, {r0-r6, lr} @ v7m_invalidate_l1 touches r0-r6
153 teq r8, #0 @ re-evalutae condition
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/linux/drivers/firmware/imx/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
18 The System Controller Firmware (SCFW) is a low-level system function
19 which runs on a dedicated Cortex-M core to provide power, clock, and
24 SCU firmware running on M4.
32 a low-level system function which runs on a dedicated Cortex-M
43 a low-level system function which runs on a dedicated Cortex-M
54 a low-level system function which runs on a dedicated Cortex-M
/linux/Documentation/devicetree/bindings/arm/stm32/
H A Dst,mlahb.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 ML-AHB interconnect
10 - Fabien Dessenne <fabien.dessenne@foss.st.com>
11 - Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
14 These bindings describe the STM32 SoCs ML-AHB interconnect bus which connects
15 a Cortex-M subsystem with dedicated memories. The MCU SRAM and RETRAM memory
17 using different buses (see [2]): balancing the Cortex-M firmware accesses
23 - $ref: /schemas/simple-bus.yaml#
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/linux/Documentation/devicetree/bindings/interrupt-controller/
H A Dfsl,vf610-mscm-ir.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/fsl,vf610-mscm-ir.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale Vybrid Miscellaneous System Control - Interrupt Router
15 which comes with a Cortex-A5/Cortex-M4 combination).
19 - Frank Li <Frank.Li@nxp.com>
23 const: fsl,vf610-mscm-ir
34 interrupt-controller: true
36 '#interrupt-cells':
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/linux/arch/arm/mach-imx/
H A Dmach-imx7d-cm4.c1 // SPDX-License-Identifier: GPL-2.0
11 "fsl,imx7d-cm4",
15 DT_MACHINE_START(IMX7D, "Freescale i.MX7 Dual Cortex-M4 (Device Tree)")
/linux/Documentation/devicetree/bindings/remoteproc/
H A Dfsl,imx-rproc.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/fsl,imx-rproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NXP i.MX Co-Processor
10 This binding provides support for ARM Cortex M4 Co-processor found on some NXP iMX SoCs.
13 - Peng Fan <peng.fan@nxp.com>
18 - fsl,imx6sx-cm4
19 - fsl,imx7d-cm4
20 - fsl,imx7ulp-cm4
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H A Dti,omap-remoteproc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/remoteproc/ti,omap-remoteproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Suman Anna <s-anna@ti.com>
13 The OMAP family of SoCs usually have one or more slave processor sub-systems
14 that are used to offload some of the processor-intensive tasks, or to manage
17 The processor cores in the sub-system are usually behind an IOMMU, and may
18 contain additional sub-modules like Internal RAM and/or ROMs, L1 and/or L2
21 The OMAP SoCs usually have a DSP processor sub-system and/or an IPU processor
[all …]
/linux/drivers/irqchip/
H A Dirq-vf610-mscm-ir.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2014-2015 Toradex AG
9 * one of the two available CPU's on Vybrid VF6xx SoC's (Cortex-A5 or
10 * Cortex-M4). The router will be configured transparently on a IRQ
14 * CPU 0, CPU 1 or both. The routing is useful for dual-core
18 * o It is required to setup the interrupt router even on single-core
28 #include <dt-bindings/interrupt-controller/arm-gic.h>
55 data->saved_irsprc[i] = readw_relaxed(data->mscm_ir_base + MSCM_IRSPRC(i)); in vf610_mscm_ir_save()
63 writew_relaxed(data->saved_irsprc[i], data->mscm_ir_base + MSCM_IRSPRC(i)); in vf610_mscm_ir_restore()
88 irq_hw_number_t hwirq = data->hwirq; in vf610_mscm_ir_enable()
[all …]
H A Dirq-nvic.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/irq/irq-nvic.c
9 * ARMv7-M CPUs (Cortex-M3/M4)
36 #define NVIC_MAX_IRQ ((NVIC_MAX_BANKS - 1) * 32 + 16)
43 irq_hw_number_t hwirq = (icsr & V7M_SCB_ICSR_VECTACTIVE) - 16; in nvic_handle_irq()
86 return -ENOMEM; in nvic_of_init()
99 return -ENOMEM; in nvic_of_init()
116 gc->reg_base = nvic_base + 4 * i; in nvic_of_init()
117 gc->chip_types[0].regs.enable = NVIC_ISER; in nvic_of_init()
118 gc->chip_types[0].regs.disable = NVIC_ICER; in nvic_of_init()
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/linux/arch/arm/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
162 The ARM series is a line of low-power-consumption RISC chip designs
164 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
165 manufactured, but legacy ARM-based PC hardware remains popular in
173 relocations. The combined range is -/+ 256 MiB, which is usually
266 Patch phys-to-virt and virt-to-phys translation functions at
270 This can only be used with non-XIP MMU kernels where the base
316 bool "MMU-based Paged Memory Management Support"
319 Select if you want MMU-based virtualised addressing space
354 # This is sorted alphabetically by mach-* pathname. However, plat-*
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/linux/Documentation/devicetree/bindings/firmware/
H A Dfsl,scu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dong Aisheng <aisheng.dong@nxp.com>
13 The System Controller Firmware (SCFW) is a low-level system function
14 which runs on a dedicated Cortex-M core to provide power, clock, and
17 The AP communicates with the SC using a multi-ported MU module found
26 const: fsl,imx-scu
28 clock-controller:
31 $ref: /schemas/clock/fsl,scu-clk.yaml
[all …]
/linux/drivers/gpio/
H A Dgpio-lpc18xx.c1 // SPDX-License-Identifier: GPL-2.0
58 u32 val = readl_relaxed(ic->base + LPC18XX_GPIO_PIN_IC_ISEL); in lpc18xx_gpio_pin_ic_isel()
65 writel_relaxed(val, ic->base + LPC18XX_GPIO_PIN_IC_ISEL); in lpc18xx_gpio_pin_ic_isel()
71 writel_relaxed(BIT(pin), ic->base + reg); in lpc18xx_gpio_pin_ic_set()
76 struct lpc18xx_gpio_pin_ic *ic = d->chip_data; in lpc18xx_gpio_pin_ic_mask()
80 raw_spin_lock(&ic->lock); in lpc18xx_gpio_pin_ic_mask()
83 lpc18xx_gpio_pin_ic_set(ic, d->hwirq, in lpc18xx_gpio_pin_ic_mask()
87 lpc18xx_gpio_pin_ic_set(ic, d->hwirq, in lpc18xx_gpio_pin_ic_mask()
90 raw_spin_unlock(&ic->lock); in lpc18xx_gpio_pin_ic_mask()
94 gpiochip_disable_irq(ic->gpio, hwirq); in lpc18xx_gpio_pin_ic_mask()
[all …]
/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6sx-udoo-neo.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
12 stdout-path = "serial0:115200n8";
16 compatible = "gpio-leds";
18 led-red {
19 label = "udoo-neo:red:mmc";
21 default-state = "off";
22 linux,default-trigger = "mmc0";
25 led-orange {
26 label = "udoo-neo:orange:user";
28 default-state = "keep";
[all …]
H A Dimx7s.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
6 #include <dt-bindings/clock/imx7d-clock.h>
7 #include <dt-bindings/power/imx7-power.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 #include <dt-bindings/reset/imx7-reset.h>
12 #include "imx7d-pinfunc.h"
15 #address-cells = <1>;
16 #size-cells = <1>;
[all …]
/linux/tools/testing/selftests/nolibc/
H A DMakefile.nolibc1 # SPDX-License-Identifier: GPL-2.0
9 # We need this for the "__cc-option" macro.
13 ifneq ($(call is-absolute,$(O)),y)
26 cc-option = $(call __cc-option, $(CC),$(CLANG_CROSS_FLAGS),$(1),$(2))
30 # and the Qemu program used. It is copied as-is into ARCH except for
34 # --
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/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mm-verdin.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
6 #include <dt-bindings/phy/phy-imx8-pcie.h>
7 #include <dt-bindings/pwm/pwm.h>
9 #include "imx8mm-overdrive.dtsi"
13 stdout-path = &uart1;
23 compatible = "fixed-clock";
24 #clock-cells = <0>;
25 clock-frequency = <40000000>;
28 gpio-keys {
29 compatible = "gpio-keys";
[all …]
/linux/drivers/remoteproc/
H A Domap_remoteproc.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2011-2020 Texas Instruments Incorporated - http://www.ti.com/
8 * Ohad Ben-Cohen <ohad@wizery.com>
12 * Suman Anna <s-anna@ti.com>
13 * Hari Kanigeri <h-kanigeri2@ti.com>
27 #include <linux/dma-mapping.h>
31 #include <linux/omap-iommu.h>
32 #include <linux/omap-mailbox.h>
36 #include <clocksource/timer-ti-dm.h>
38 #include <linux/platform_data/dmtimer-omap.h>
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