| /openbmc/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
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| H A D | tegra186-emc.c | 1 // SPDX-License-Identifier: GPL-2.0-only
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()
82 for (i = 0; i < emc->num_dvfs; i++) { in tegra186_emc_debug_available_rates_show()
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| /openbmc/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.
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| /openbmc/linux/Documentation/devicetree/bindings/memory-controllers/ |
| H A D | nvidia,tegra210-emc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra210-emc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra210 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,tegra210-emc
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| 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.
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| 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
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| 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
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| /openbmc/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
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| /openbmc/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
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| /openbmc/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
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| H A D | nuvoton,npcm750-clk.txt | 1 * Nuvoton NPCM7XX Clock Controller
3 Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which
6 External clocks:
10 clk_sysbypck are inputs to the clock controller.
11 clk_rg1refck, clk_rg2refck and clk_xin are external clocks suppling the
17 dt-bindings/clock/nuvoton,npcm7xx-clock.h
20 Required Properties of clock controller:
22 - compatible: "nuvoton,npcm750-clk" : for clock controller of Nuvoton
25 - reg: physical base address of the clock controller and length of
26 memory mapped region.
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| 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>
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| H A D | rockchip,rk3328-cru.txt | 3 The RK3328 clock controller generates and supplies clock to various
4 controllers within the SoC and also implements a reset controller for SoC
9 - compatible: should be "rockchip,rk3328-cru"
10 - reg: physical base address of the controller and length of memory mapped
12 - #clock-cells: should be 1.
13 - #reset-cells: should be 1.
17 - rockchip,grf: phandle to the syscon managing the "general register files"
22 preprocessor macros in the dt-bindings/clock/rk3328-cru.h headers and can be
26 External clocks:
30 clock-output-names:
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| /openbmc/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.
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| /openbmc/u-boot/doc/device-tree-bindings/clock/ |
| H A D | rockchip,rk3288-cru.txt | 3 The RK3288 clock controller generates and supplies clock to various
4 controllers within the SoC and also implements a reset controller for SoC
9 - compatible: should be "rockchip,rk3288-cru"
10 - reg: physical base address of the controller and length of memory mapped
12 - #clock-cells: should be 1.
13 - #reset-cells: should be 1.
17 - rockchip,grf: phandle to the syscon managing the "general register files"
22 preprocessor macros in the dt-bindings/clock/rk3288-cru.h headers and can be
26 External clocks:
30 clock-output-names:
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| H A D | rockchip,rk3188-cru.txt | 3 The RK3188/RK3066 clock controller generates and supplies clock to various
4 controllers within the SoC and also implements a reset controller for SoC
9 - compatible: should be "rockchip,rk3188-cru", "rockchip,rk3188a-cru" or
10 "rockchip,rk3066a-cru"
11 - reg: physical base address of the controller and length of memory mapped
13 - #clock-cells: should be 1.
14 - #reset-cells: should be 1.
18 - rockchip,grf: phandle to the syscon managing the "general register files"
23 preprocessor macros in the dt-bindings/clock/rk3188-cru.h and
24 dt-bindings/clock/rk3066-cru.h headers and can be used in device tree sources.
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| /openbmc/linux/Documentation/devicetree/bindings/usb/ |
| H A D | msm-hsusb.txt | 6 - compatible: Should contain "qcom,ehci-host"
7 - regs: offset and length of the register set in the memory map
8 - usb-phy: phandle for the PHY device
10 Example EHCI controller device node:
13 compatible = "qcom,ehci-host";
15 usb-phy = <&usb_otg>;
21 - compatible: Should contain:
22 "qcom,usb-otg-ci" for chipsets with ChipIdea 45nm PHY
23 "qcom,usb-otg-snps" for chipsets with Synopsys 28nm PHY
25 - regs: Offset and length of the register set in the memory map
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| /openbmc/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
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| /openbmc/u-boot/arch/nds32/include/asm/arch-ag101/ |
| H A D | ag101.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
13 /* AHB Controller */
15 /* Static Memory Controller (SRAM) */
17 /* FTSDMC021 SDRAM Controller */
19 /* DMA Controller */
21 /* AHB-to-APB Bridge */
23 /* LCD Controller */
31 /* External USB host */
35 /* External AHB-to-PCI Bridge (FTPCI100 not exist in ag101) */
39 /* External AHB-to-APB Bridger (FTAPBBRG020S_02) */
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| /openbmc/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".
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| /openbmc/u-boot/doc/SPI/ |
| H A D | README.ti_qspi_flash | 1 QSPI U-Boot support
2 ------------------
6 dual and quad read access to external spi devices. The module
7 has a memory mapped interface which provide direct interface
8 for accessing data form external spi devices.
14 -------
16 MLO/u-boot.img will be flashed from SD/MMC to the flash device
21 u-boot.img from flash and execute it from SDRAM.
24 -------
31 Memory mapped read mode
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| /openbmc/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
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| /openbmc/u-boot/doc/device-tree-bindings/memory-controllers/ |
| H A D | k3-am654-ddrss.txt | 4 K3 based AM654 devices has DDR memory subsystem that comprises
5 Synopys DDR controller, Synopsis DDR phy and wrapper logic to
7 provides an interface to external SDRAM devices. This DDRSS driver
8 adds support for the initialization of the external SDRAM devices by
15 --------------------
16 - compatible: Shall be: "ti,am654-ddrss"
17 - reg-names ss - Map the sub system wrapper logic region
18 ctl - Map the controller region
19 phy - Map the PHY region
20 - reg: Contains the register map per reg-names.
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| /openbmc/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.
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| /openbmc/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
94 Driver for i.MX WEIM controller.
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