| /linux/drivers/memory/tegra/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "NVIDIA Tegra Memory Controller support"
8 This driver supports the Memory Controller (MC) hardware found on
14 tristate "NVIDIA Tegra20 External Memory Controller driver"
21 This driver is for the External Memory Controller (EMC) found on
22 Tegra20 chips. The EMC controls the external DRAM on the board.
23 This driver is required to change memory timings / clock rate for
24 external memory.
27 tristate "NVIDIA Tegra30 External Memory Controller driver"
33 This driver is for the External Memory Controller (EMC) found on
[all …]
|
| H A D | tegra186-emc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2019-2025 NVIDIA CORPORATION. All rights reserved.
41 * The memory controller driver exposes some files in debugfs that can be used
42 * to control the EMC frequency. The top-level directory can be found here:
48 * - available_rates: This file contains a list of valid, space-separated
51 * - min_rate: Writing a value to this file sets the given frequency as the
56 * - max_rate: Similarily to the min_rate file, writing a value to this file
68 for (i = 0; i < emc->num_dvfs; i++) in tegra186_emc_validate_rate()
69 if (rate == emc->dvfs[i].rate) in tegra186_emc_validate_rate()
78 struct tegra186_emc *emc = s->private; in tegra186_emc_debug_available_rates_show()
[all …]
|
| /linux/drivers/memory/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # Memory devices
6 menuconfig MEMORY config
7 bool "Memory Controller drivers"
9 This option allows to enable specific memory controller drivers,
12 vary from memory tuning and frequency scaling to enabling
13 access to attached peripherals through memory bus.
15 if MEMORY
29 This selects the ARM PrimeCell PL172 MultiPort Memory Controller.
31 controller, say Y or M here.
[all …]
|
| /linux/Documentation/devicetree/bindings/memory-controllers/ |
| H A D | nvidia,tegra186-mc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra186-mc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra186 (and later) SoC Memory Controller
10 - Jon Hunter <jonathanh@nvidia.com>
11 - Thierry Reding <thierry.reding@gmail.com>
14 The NVIDIA Tegra186 SoC features a 128 bit memory controller that is split
16 handles memory requests for 40-bit virtual addresses from internal clients
17 and arbitrates among them to allocate memory bandwidth.
[all …]
|
| H A D | st,stm32-fmc2-ebi.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/st,stm32-fmc2-ebi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics Flexible Memory Controller 2 (FMC2)
11 asynchronous static devices (such as PSNOR, PSRAM or other memory-mapped
14 - to translate AXI transactions into the appropriate external device
16 - to meet the access time requirements of the external devices
17 All external devices share the addresses, data and control signals with the
18 controller. Each external device is accessed by means of a unique Chip
[all …]
|
| H A D | nvidia,tegra20-emc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra20-emc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra20 SoC External Memory Controller
10 - Dmitry Osipenko <digetx@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
12 - Thierry Reding <thierry.reding@gmail.com>
15 The External Memory Controller (EMC) interfaces with the off-chip SDRAM to
16 service the request stream sent from Memory Controller. The EMC also has
[all …]
|
| H A D | nvidia,tegra124-emc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra124-emc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra124 SoC External Memory Controller
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
14 The EMC interfaces with the off-chip SDRAM to service the request stream
15 sent from the memory controller.
19 const: nvidia,tegra124-emc
[all …]
|
| H A D | samsung,s5pv210-dmc.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/samsung,s5pv210-dmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung S5Pv210 SoC Dynamic Memory Controller
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 Dynamic Memory Controller interfaces external JEDEC DDR-type SDRAM.
17 const: samsung,s5pv210-dmc
23 - compatible
24 - reg
[all …]
|
| /linux/drivers/video/fbdev/omap/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
11 bool "External LCD controller support"
15 external LCD controller connected to the SoSSI/RFBI interface.
18 bool "Epson HWA742 LCD controller support"
21 Say Y here if you want to have support for the external
22 Epson HWA742 LCD controller.
28 Say Y here, if your user-space applications are capable of
31 the external frame buffer is required. If unsure, say N.
34 bool "MIPI DBI-C/DCS compatible LCD support"
38 the Mobile Industry Processor Interface DBI-C/DCS
[all …]
|
| /linux/Documentation/devicetree/bindings/clock/ |
| H A D | nvidia,tegra124-car.yaml | 1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/nvidia,tegra124-car.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra Clock and Reset Controller
10 - Jon Hunter <jonathanh@nvidia.com>
11 - Thierry Reding <thierry.reding@gmail.com>
20 CLKGEN input signals include the external clock for the reference frequency
21 (12 MHz, 26 MHz) and the external clock for the Real Time Clock (32.768 KHz).
31 - nvidia,tegra124-car
[all …]
|
| H A D | samsung,exynos850-clock.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/samsung,exynos850-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung Exynos850 SoC clock controller
10 - Sam Protsenko <semen.protsenko@linaro.org>
11 - Chanwoo Choi <cw00.choi@samsung.com>
12 - Krzysztof Kozlowski <krzk@kernel.org>
13 - Sylwester Nawrocki <s.nawrocki@samsung.com>
14 - Tomasz Figa <tomasz.figa@gmail.com>
[all …]
|
| /linux/drivers/memory/samsung/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
3 bool "Samsung Exynos Memory Controller support" if COMPILE_TEST
5 Support for the Memory Controller (MC) devices found on
11 tristate "Exynos5422 Dynamic Memory Controller driver"
17 This adds driver for Samsung Exynos5422 SoC DMC (Dynamic Memory
18 Controller). The driver provides support for Dynamic Voltage and
21 based on DT memory information.
25 bool "Exynos SROM controller driver" if COMPILE_TEST
28 This adds driver for Samsung Exynos SoC SROM controller. The driver
31 is provided, the driver enables support for external memory
[all …]
|
| /linux/Documentation/devicetree/bindings/net/can/ |
| H A D | cc770.txt | 1 Memory mapped Bosch CC770 and Intel AN82527 CAN controller
3 Note: The CC770 is a CAN controller from Bosch, which is 100%
8 - compatible : should be "bosch,cc770" for the CC770 and "intc,82527"
11 - reg : should specify the chip select, address offset and size required
12 to map the registers of the controller. The size is usually 0x80.
14 - interrupts : property with a value describing the interrupt source
15 (number and sensitivity) required for the controller.
19 - bosch,external-clock-frequency : frequency of the external oscillator
21 controller is half of that value. If not specified, a default
24 - bosch,clock-out-frequency : slock frequency in Hz on the CLKOUT pin.
[all …]
|
| /linux/Documentation/devicetree/bindings/dma/ |
| H A D | socionext,uniphier-xdmac.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/dma/socionext,uniphier-xdmac.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Socionext UniPhier external DMA controller
10 This describes the devicetree bindings for an external DMA engine to perform
11 memory-to-memory or peripheral-to-memory data transfer capable of supporting
15 - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
18 - $ref: dma-controller.yaml#
22 const: socionext,uniphier-xdmac
[all …]
|
| /linux/Documentation/devicetree/bindings/sound/ |
| H A D | mediatek,mt8188-afe.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/mediatek,mt8188-afe.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek AFE PCM controller for mt8188
10 - Trevor Wu <trevor.wu@mediatek.com>
14 const: mediatek,mt8188-afe
25 reset-names:
28 memory-region:
31 Shared memory region for AFE memif. A "shared-dma-pool".
[all …]
|
| H A D | mt8195-afe-pcm.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/mt8195-afe-pcm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Mediatek AFE PCM controller for mt8195
10 - Trevor Wu <trevor.wu@mediatek.com>
14 const: mediatek,mt8195-audio
25 reset-names:
28 memory-region:
31 Shared memory region for AFE memif. A "shared-dma-pool".
[all …]
|
| H A D | mvebu-audio.txt | 1 * mvebu (Kirkwood, Dove, Armada 370) audio controller
5 - compatible:
6 "marvell,kirkwood-audio" for Kirkwood platforms
7 "marvell,dove-audio" for Dove platforms
8 "marvell,armada370-audio" for Armada 370 platforms
9 "marvell,armada-380-audio" for Armada 38x platforms
11 - reg: physical base address of the controller and length of memory mapped
13 With "marvell,armada-380-audio" two other regions are required:
15 (named "pll_regs") and the second one ("soc_ctrl") - for register
18 - interrupts:
[all …]
|
| /linux/Documentation/devicetree/bindings/devfreq/ |
| H A D | nvidia,tegra30-actmon.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/devfreq/nvidia,tegra30-actmon.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dmitry Osipenko <digetx@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
12 - Thierry Reding <thierry.reding@gmail.com>
17 which the external memory needs to be clocked in order to serve all requests
23 - nvidia,tegra30-actmon
24 - nvidia,tegra114-actmon
[all …]
|
| /linux/drivers/bus/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
37 Driver for the Broadcom Set Top Box System-on-a-chip internal bus
42 bool "Baikal-T1 APB-bus driver"
46 Baikal-T1 AXI-APB bridge is used to access the SoC subsystem CSRs.
53 errors counter. The counter and the APB-bus operations timeout can be
57 bool "Baikal-T1 AXI-bus driver"
61 AXI3-bus is the main communication bus connecting all high-speed
62 peripheral IP-cores with RAM controller and with MIPS P5600 cores on
63 Baikal-T1 SoC. Traffic arbitration is done by means of DW AMBA 3 AXI
100 Driver for i.MX WEIM controller.
[all …]
|
| /linux/Documentation/devicetree/bindings/bus/ |
| H A D | nvidia,tegra20-gmi.txt | 1 Device tree bindings for NVIDIA Tegra Generic Memory Interface bus
3 The Generic Memory Interface bus enables memory transfers between internal and
4 external memory. Can be used to attach various high speed devices such as
10 - compatible : Should contain one of the following:
11 For Tegra20 must contain "nvidia,tegra20-gmi".
12 For Tegra30 must contain "nvidia,tegra30-gmi".
13 - reg: Should contain GMI controller registers location and length.
14 - clocks: Must contain an entry for each entry in clock-names.
15 - clock-names: Must include the following entries: "gmi"
16 - resets : Must contain an entry for each entry in reset-names.
[all …]
|
| H A D | renesas,bsc.yaml | 2 ---
4 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 title: Renesas Bus State Controller (BSC)
9 - Geert Uytterhoeven <geert+renesas@glider.be>
12 The Renesas Bus State Controller (BSC, sometimes called "LBSC within Bus
13 Bridge", or "External Bus Interface") can be found in several Renesas ARM
14 SoCs. It provides an external bus for connecting multiple external
18 While the BSC is a fairly simple memory-mapped bus, it may be part of a
24 The bindings for the BSC extend the bindings for "simple-pm-bus".
27 - $ref: simple-pm-bus.yaml#
[all …]
|
| /linux/Documentation/devicetree/bindings/powerpc/fsl/ |
| H A D | mpc5200.txt | 2 ----------------------------
4 (c) 2006-2009 Secret Lab Technologies Ltd
8 ------------------
9 For mpc5200 on-chip devices, the format for each compatible value is
10 <chip>-<device>[-<mode>]. The OS should be able to match a device driver
21 "fsl,mpc5200-<device>".
29 compatible = "fsl,mpc5200b-<device>","fsl,mpc5200-<device>";
34 ie. ethernet on mpc5200: compatible = "fsl,mpc5200-fec";
35 ethernet on mpc5200b: compatible = "fsl,mpc5200b-fec", "fsl,mpc5200-fec";
39 "fsl,mpc5200-psc-i2s", not "fsl,mpc5200-i2s". This convention is chosen to
[all …]
|
| /linux/Documentation/devicetree/bindings/powerpc/nintendo/ |
| H A D | wii.txt | 11 - model : Should be "nintendo,wii"
12 - compatible : Should be "nintendo,wii"
16 This node represents the multi-function "Hollywood" chip, which packages
21 - compatible : Should be "nintendo,hollywood"
25 Represents the interface between the graphics processor and a external
30 - compatible : should be "nintendo,hollywood-vi","nintendo,flipper-vi"
31 - reg : should contain the VI registers location and length
32 - interrupts : should contain the VI interrupt
41 - compatible : should be "nintendo,hollywood-pi","nintendo,flipper-pi"
42 - reg : should contain the PI registers location and length
[all …]
|
| /linux/Documentation/devicetree/bindings/usb/ |
| H A D | chipidea,usb2-common.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/usb/chipidea,usb2-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: USB2 ChipIdea USB controller Common Properties
10 - Xu Yang <xu.yang_2@nxp.com>
25 clock-names:
31 power-domains:
37 reset-names:
40 "#reset-cells":
[all …]
|
| /linux/Documentation/devicetree/bindings/gpio/ |
| H A D | lantiq,gpio-mm-lantiq.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/lantiq,gpio-mm-lantiq.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Lantiq SoC External Bus memory mapped GPIO controller
10 - John Crispin <john@phrozen.org>
14 only gpios. This driver configures a special memory address, which when
17 The node describing the memory mapped GPIOs needs to be a child of the node
23 - lantiq,gpio-mm-lantiq
24 - lantiq,gpio-mm
[all …]
|