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/linux/Documentation/arch/arm/stm32/
H A Dstm32-dma-mdma-chaining.rst1 .. SPDX-License-Identifier: GPL-2.0
4 STM32 DMA-MDMA chaining
9 ------------
11 This document describes the STM32 DMA-MDMA chaining feature. But before going
14 To offload data transfers from the CPU, STM32 microprocessors (MPUs) embed
15 direct memory access controllers (DMA).
17 STM32MP1 SoCs embed both STM32 DMA and STM32 MDMA controllers. STM32 DMA
18 request routing capabilities are enhanced by a DMA request multiplexer
19 (STM32 DMAMUX).
21 **STM32 DMAMUX**
[all …]
/linux/drivers/dma/stm32/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # STM32 DMA controllers drivers
8 bool "STMicroelectronics STM32 DMA support"
12 Enable support for the on-chip DMA controller on STMicroelectronics
13 STM32 platforms.
14 If you have a board based on STM32 SoC with such DMA controller
15 and want to use DMA say Y here.
18 bool "STMicroelectronics STM32 DMA multiplexer support"
21 Enable support for the on-chip DMA multiplexer on STMicroelectronics
22 STM32 platforms.
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H A DMakefile1 # SPDX-License-Identifier: GPL-2.0-only
2 obj-$(CONFIG_STM32_DMA) += stm32-dma.o
3 obj-$(CONFIG_STM32_DMAMUX) += stm32-dmamux.o
4 obj-$(CONFIG_STM32_MDMA) += stm32-mdma.o
5 obj-$(CONFIG_STM32_DMA3) += stm32-dma3.o
/linux/Documentation/devicetree/bindings/dma/stm32/
H A Dst,stm32-dma.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/stm32/st,stm32-dma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 DMA Controller
10 The STM32 DMA is a general-purpose direct memory access controller capable of
11 supporting 8 independent DMA channels. Each channel can have up to 8 requests.
12 DMA clients connected to the STM32 DMA controller must use the format
13 described in the dma.txt file, using a four-cell specifier for each
14 channel: a phandle to the DMA controller plus the following four integer cells:
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H A Dst,stm32-dma3.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/stm32/st,stm32-dma3.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 DMA3 Controller
10 The STM32 DMA3 is a direct memory access controller with different features
16 GPDMA and HPDMA support 16 independent DMA channels, while only 4 for LPDMA.
17 GPDMA and HPDMA support 256 DMA requests from peripherals, 8 for LPDMA.
19 Bindings are generic for these 3 STM32 DMA3 configurations.
21 DMA clients connected to the STM32 DMA3 controller must use the format
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H A Dst,stm32-mdma.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/stm32/st,stm32-mdma.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 MDMA Controller
10 The STM32 MDMA is a general-purpose direct memory access controller capable of
11 supporting 64 independent DMA channels with 256 HW requests.
12 DMA clients connected to the STM32 MDMA controller must use the format
13 described in the dma.txt file, using a five-cell specifier for each channel:
21 3. A 32bit mask specifying the DMA channel configuration
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H A Dst,stm32-dmamux.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/stm32/st,stm32-dmamux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 DMA MUX (DMA request router)
10 - Amelie Delaunay <amelie.delaunay@foss.st.com>
13 - $ref: /schemas/dma/dma-router.yaml#
16 "#dma-cells":
20 const: st,stm32h7-dmamux
31 access-controllers:
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/linux/arch/arm/boot/dts/st/
H A Dstm32mp131.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) STMicroelectronics 2021 - All Rights Reserved
6 #include <dt-bindings/interrupt-controller/arm-gic.h>
7 #include <dt-bindings/clock/stm32mp13-clks.h>
8 #include <dt-bindings/reset/stm32mp13-resets.h>
11 #address-cells = <1>;
12 #size-cells = <1>;
15 #address-cells = <1>;
16 #size-cells = <0>;
19 compatible = "arm,cortex-a7";
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H A Dstm32mp151.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) STMicroelectronics 2017 - All Rights Reserved
6 #include <dt-bindings/interrupt-controller/arm-gic.h>
7 #include <dt-bindings/clock/stm32mp1-clks.h>
8 #include <dt-bindings/reset/stm32mp1-resets.h>
11 #address-cells = <1>;
12 #size-cells = <1>;
15 #address-cells = <1>;
16 #size-cells = <0>;
19 compatible = "arm,cortex-a7";
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H A Dstm32f429.dtsi2 * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
4 * This file is dual-licensed: you can use it either under the terms
22 * MA 02110-1301 USA
48 #include "../armv7-m.dtsi"
49 #include <dt-bindings/clock/stm32fx-clock.h>
50 #include <dt-bindings/mfd/stm32f4-rcc.h>
53 #address-cells = <1>;
54 #size-cells = <1>;
57 clk_hse: clk-hse {
58 #clock-cells = <0>;
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H A Dstm32h743.dtsi2 * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
4 * This file is dual-licensed: you can use it either under the terms
43 #include "../armv7-m.dtsi"
44 #include <dt-bindings/clock/stm32h7-clks.h>
45 #include <dt-bindings/mfd/stm32h7-rcc.h>
46 #include <dt-bindings/interrupt-controller/irq.h>
49 #address-cells = <1>;
50 #size-cells = <1>;
53 clk_hse: clk-hse {
54 #clock-cells = <0>;
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H A Dstm32f746.dtsi2 * Copyright 2015 - Maxime Coquelin <mcoquelin.stm32@gmail.com>
4 * This file is dual-licensed: you can use it either under the terms
43 #include "../armv7-m.dtsi"
44 #include <dt-bindings/clock/stm32fx-clock.h>
45 #include <dt-bindings/mfd/stm32f7-rcc.h>
48 #address-cells = <1>;
49 #size-cells = <1>;
52 clk_hse: clk-hse {
53 #clock-cells = <0>;
54 compatible = "fixed-clock";
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/linux/Documentation/devicetree/bindings/spi/
H A Dst,stm32-spi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/spi/st,stm32-spi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 SPI Controller
10 The STM32 SPI controller is used to communicate with external devices using
11 the Serial Peripheral Interface. It supports full-duplex, half-duplex and
13 from 4 to 32-bit data size.
16 - Erwan Leray <erwan.leray@foss.st.com>
17 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
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/linux/drivers/mfd/
H A Dstm32-timers.c1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/mfd/stm32-timers.h>
16 /* DIER register DMA enable bits */
29 struct stm32_timers_dma *dma = p; in stm32_timers_dma_done() local
33 status = dmaengine_tx_status(dma->chan, dma->chan->cookie, &state); in stm32_timers_dma_done()
35 complete(&dma->completion); in stm32_timers_dma_done()
39 * stm32_timers_dma_burst_read - Read from timers registers using DMA.
41 * Read from STM32 timers registers using DMA on a single event.
43 * @buf: DMA'able destination buffer
45 * @reg: registers start offset for DMA to read from (like CCRx for capture)
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/linux/Documentation/devicetree/bindings/mfd/
H A Dst,stm32-timers.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mfd/st,stm32-timers.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 Timers
11 - advanced-control timers consist of a 16-bit auto-reload counter driven
14 - general-purpose timers consist of a 16-bit or 32-bit auto-reload counter
16 - basic timers consist of a 16-bit auto-reload counter driven by a
20 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
24 const: st,stm32-timers
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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dst,stm32-dfsdm-adc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-dfsdm-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 DFSDM ADC device driver
10 - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
11 - Olivier Moysan <olivier.moysan@foss.st.com>
14 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
15 interface external sigma delta modulators to STM32 micro controllers.
17 - Sigma delta modulators (motor control, metering...)
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/linux/Documentation/arch/arm/
H A Dindex.rst1 .. SPDX-License-Identifier: GPL-2.0
12 cluster-pm-race-avoidance
28 SoC-specific documents
34 google/chromebook-boot-flow
45 keystone/knav-qmss
54 stm32/stm32f746-overview
55 stm32/overview
56 stm32/stm32h743-overview
57 stm32/stm32h750-overview
58 stm32/stm32f769-overview
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/linux/drivers/media/platform/st/stm32/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
5 tristate "STM32 Digital Camera Memory Interface (DCMI) support"
13 This module makes the STM32 Digital Camera Memory Interface (DCMI)
17 will be called stm32-dcmi.
20 tristate "STM32 Digital Camera Memory Interface Pixel Processor (DCMIPP) support"
29 This module makes the STM32 Digital Camera Memory Interface
33 will be called stm32-dcmipp.
37 tristate "STM32 Chrom-Art Accelerator (DMA2D)"
44 Enables DMA2D hardware support on stm32.
46 The STM32 DMA2D is a memory-to-memory engine for pixel conversion
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/linux/Documentation/devicetree/bindings/media/
H A Dst,stm32-dcmi.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/st,stm32-dcmi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 Digital Camera Memory Interface (DCMI)
10 - Hugues Fruchet <hugues.fruchet@foss.st.com>
14 const: st,stm32-dcmi
25 clock-names:
27 - const: mclk
32 dma-names:
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/linux/Documentation/devicetree/bindings/crypto/
H A Dst,stm32-hash.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/crypto/st,stm32-hash.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 HASH
9 description: The STM32 HASH block is built on the HASH block found in
14 - Lionel Debieve <lionel.debieve@foss.st.com>
19 - st,stn8820-hash
20 - stericsson,ux500-hash
21 - st,stm32f456-hash
[all …]
H A Dst,stm32-cryp.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/crypto/st,stm32-cryp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 CRYP
9 description: The STM32 CRYP block is built on the CRYP block found in
14 - Lionel Debieve <lionel.debieve@foss.st.com>
19 - st,stn8820-cryp
20 - stericsson,ux500-cryp
21 - st,stm32f756-cryp
[all …]
/linux/Documentation/devicetree/bindings/serial/
H A Dst,stm32-uart.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/serial/st,stm32-uart.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 - Erwan Le Ray <erwan.leray@foss.st.com>
10 title: STMicroelectronics STM32 USART
15 - st,stm32-uart
16 - st,stm32f7-uart
17 - st,stm32h7-uart
34 st,hw-flow-ctrl:
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/linux/drivers/mmc/host/
H A Dmmci.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/drivers/mmc/host/mmci.h - ARM PrimeCell MMCI PL180/1 driver
24 * The STM32 sdmmc does not have PWR_UP/OD/ROD
58 /* Modified on STM32 sdmmc */
93 /* Command register in STM32 sdmmc versions */
131 /* Control register extensions in STM32 versions */
165 /* Extended status bits for the STM32 variants */
186 /* Extended clear bits for the STM32 variants */
217 /* Extended status bits for the STM32 variants */
222 /* STM32 sdmmc data FIFO threshold register */
[all …]
/linux/Documentation/devicetree/bindings/sound/
H A Dst,stm32-sai.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/st,stm32-sai.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 Serial Audio Interface (SAI)
10 - Olivier Moysan <olivier.moysan@foss.st.com>
14 protocols as I2S standards, LSB or MSB-justified, PCM/DSP, TDM, and AC'97.
15 The SAI contains two independent audio sub-blocks. Each sub-block has
21 - st,stm32f4-sai
22 - st,stm32h7-sai
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H A Dst,stm32-spdifrx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/st,stm32-spdifrx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 S/PDIF receiver (SPDIFRX)
10 - Olivier Moysan <olivier.moysan@foss.st.com>
14 IEC-60958 and IEC-61937.
17 - $ref: dai-common.yaml#
22 - st,stm32h7-spdifrx
24 "#sound-dai-cells":
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