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Searched +full:trfc +full:- +full:min +full:- +full:tck (Results 1 – 4 of 4) sorted by relevance

/linux/Documentation/devicetree/bindings/memory-controllers/ddr/
H A Djedec,lpddr3.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr3.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LPDDR3 SDRAM compliant to JEDEC JESD209-3
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 - $ref: jedec,lpddr-props.yaml#
18 - items:
19 - enum:
20 - samsung,K3QF2F20DB
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/linux/drivers/memory/
H A Dof_memory.c1 // SPDX-License-Identifier: GPL-2.0-or-later
19 * of_get_min_tck() - extract min timing values for ddr
21 * @dev: device requesting for min timing values
26 * default min timings provided by JEDEC.
32 struct lpddr2_min_tck *min; in of_get_min_tck() local
34 min = devm_kzalloc(dev, sizeof(*min), GFP_KERNEL); in of_get_min_tck()
35 if (!min) in of_get_min_tck()
38 ret |= of_property_read_u32(np, "tRPab-min-tck", &min->tRPab); in of_get_min_tck()
39 ret |= of_property_read_u32(np, "tRCD-min-tck", &min->tRCD); in of_get_min_tck()
40 ret |= of_property_read_u32(np, "tWR-min-tck", &min->tWR); in of_get_min_tck()
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H A Djedec_ddr.h1 /* SPDX-License-Identifier: GPL-2.0-only */
64 /* Refresh rate in nano-seconds */
69 /* tRFC values */
169 * Min value for some parameters in terms of number of tCK cycles(nCK)
207 * -ENOENT if info unavailable.
228 u32 tRFC; member
252 * Min value for some parameters in terms of number of tCK cycles(nCK)
257 u32 tRFC; member
/linux/arch/arm/boot/dts/samsung/
H A Dexynos5422-odroid-core.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * Hardkernel Odroid XU3/XU3-Lite/XU4/HC1 boards core device tree source
6 * Copyright (c) 2013-2017 Samsung Electronics Co., Ltd.
10 #include <dt-bindings/clock/samsung,s2mps11.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/gpio/gpio.h>
14 #include "exynos5422-cpus.dtsi"
27 stdout-path = "serial2:115200n8";
31 compatible = "samsung,secure-firmware";
35 fixed-rate-clocks {
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