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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/ddr/
Dlpddr2-timings.txt1 * AC timing parameters of LPDDR2(JESD209-2) memories for a given speed-bin
4 - compatible : Should be "jedec,lpddr2-timings"
5 - min-freq : minimum DDR clock frequency for the speed-bin. Type is <u32>
6 - max-freq : maximum DDR clock frequency for the speed-bin. Type is <u32>
11 data-sheet of the device for a given speed-bin. All these properties are
13 a different unit have a suffix indicating the unit such as 'tRAS-max-ns'
14 - tRCD
15 - tWR
16 - tRAS-min
17 - tRRD
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Dlpddr2.txt1 * LPDDR2 SDRAM memories compliant to JEDEC JESD209-2
4 - compatible : Should be one of - "jedec,lpddr2-nvm", "jedec,lpddr2-s2",
5 "jedec,lpddr2-s4"
7 "ti,jedec-lpddr2-s2" should be listed if the memory part is LPDDR2-S2 type
9 "ti,jedec-lpddr2-s4" should be listed if the memory part is LPDDR2-S4 type
11 "ti,jedec-lpddr2-nvm" should be listed if the memory part is LPDDR2-NVM type
13 - density : <u32> representing density in Mb (Mega bits)
15 - io-width : <u32> representing bus width. Possible values are 8, 16, and 32
21 These values shall be obtained from the device data-sheet.
22 - tRRD-min-tck
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/kernel/linux/linux-6.6/arch/arm/boot/dts/ti/omap/
Delpida_ecb240abacn.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 compatible = "elpida,ECB240ABACN","jedec,lpddr2-s4";
10 io-width = <32>;
12 tRPab-min-tck = <3>;
13 tRCD-min-tck = <3>;
14 tWR-min-tck = <3>;
15 tRASmin-min-tck = <3>;
16 tRRD-min-tck = <2>;
17 tWTR-min-tck = <2>;
18 tXP-min-tck = <2>;
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/kernel/linux/linux-5.10/arch/arm/boot/dts/
Delpida_ecb240abacn.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
10 io-width = <32>;
12 tRPab-min-tck = <3>;
13 tRCD-min-tck = <3>;
14 tWR-min-tck = <3>;
15 tRASmin-min-tck = <3>;
16 tRRD-min-tck = <2>;
17 tWTR-min-tck = <2>;
18 tXP-min-tck = <2>;
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/kernel/linux/linux-6.6/Documentation/devicetree/bindings/memory-controllers/ddr/
Djedec,lpddr2-timings.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2-timings.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LPDDR2 SDRAM AC timing parameters for a given speed-bin
10 - Krzysztof Kozlowski <krzk@kernel.org>
14 const: jedec,lpddr2-timings
16 max-freq:
19 Maximum DDR clock frequency for the speed-bin, in Hz.
21 min-freq:
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Djedec,lpddr2.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LPDDR2 SDRAM compliant to JEDEC JESD209-2
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 - $ref: jedec,lpddr-props.yaml#
18 - items:
19 - enum:
20 - elpida,ECB240ABACN
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/kernel/linux/linux-5.10/drivers/memory/
Dof_memory.c1 // SPDX-License-Identifier: GPL-2.0-or-later
19 * of_get_min_tck() - extract min timing values for ddr
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()
41 ret |= of_property_read_u32(np, "tRASmin-min-tck", &min->tRASmin); in of_get_min_tck()
42 ret |= of_property_read_u32(np, "tRRD-min-tck", &min->tRRD); in of_get_min_tck()
43 ret |= of_property_read_u32(np, "tWTR-min-tck", &min->tWTR); in of_get_min_tck()
44 ret |= of_property_read_u32(np, "tXP-min-tck", &min->tXP); in of_get_min_tck()
45 ret |= of_property_read_u32(np, "tRTP-min-tck", &min->tRTP); in of_get_min_tck()
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/kernel/linux/linux-6.6/drivers/memory/
Dof_memory.c1 // SPDX-License-Identifier: GPL-2.0-or-later
19 * of_get_min_tck() - extract min timing values for ddr
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()
41 ret |= of_property_read_u32(np, "tRASmin-min-tck", &min->tRASmin); in of_get_min_tck()
42 ret |= of_property_read_u32(np, "tRRD-min-tck", &min->tRRD); in of_get_min_tck()
43 ret |= of_property_read_u32(np, "tWTR-min-tck", &min->tWTR); in of_get_min_tck()
44 ret |= of_property_read_u32(np, "tXP-min-tck", &min->tXP); in of_get_min_tck()
45 ret |= of_property_read_u32(np, "tRTP-min-tck", &min->tRTP); in of_get_min_tck()
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/kernel/linux/linux-5.10/drivers/memory/samsung/
Dexynos5422-dmc.c1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/devfreq-event.h>
100 * struct dmc_opp_table - Operating level desciption
112 * struct exynos5_dmc - main structure describing DMC device
143 * @last_overflow_ts: time (in ns) of last overflow of each DREX
195 __val = (t_val) << (timing)->bit_beg; \
212 TIMING_FIELD("tRAS", 0, 5),
219 TIMING_FIELD("tW2W-C2C", 14, 14),
220 TIMING_FIELD("tR2R-C2C", 12, 12),
242 for (i = 0; i < dmc->num_counters; i++) { in exynos5_counters_set_event()
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/kernel/linux/linux-6.6/drivers/memory/samsung/
Dexynos5422-dmc.c1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/devfreq-event.h>
100 * struct dmc_opp_table - Operating level desciption
112 * struct exynos5_dmc - main structure describing DMC device
143 * @last_overflow_ts: time (in ns) of last overflow of each DREX
195 __val = (t_val) << (timing)->bit_beg; \
212 TIMING_FIELD("tRAS", 0, 5),
219 TIMING_FIELD("tW2W-C2C", 14, 14),
220 TIMING_FIELD("tR2R-C2C", 12, 12),
242 for (i = 0; i < dmc->num_counters; i++) { in exynos5_counters_set_event()
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/kernel/linux/linux-5.10/sound/pci/asihpi/
Dhpi6000.c1 // SPDX-License-Identifier: GPL-2.0-only
5 Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
18 (C) Copyright AudioScience Inc. 1998-2003
78 /* can't access SDRAM - test#1 */
80 /* can't access SDRAM - test#2 */
210 switch (phm->function) { in subsys_message()
215 phr->error = HPI_ERROR_INVALID_FUNC; in subsys_message()
223 struct hpi_hw_obj *phw = pao->priv; in control_message()
225 switch (phm->function) { in control_message()
227 if (pao->has_control_cache) { in control_message()
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Dhpi6205.c1 // SPDX-License-Identifier: GPL-2.0-only
5 Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
17 (C) Copyright AudioScience Inc. 1998-2010
61 /* Host-to-DSP Control Register (HDCR) bitfields */
70 * BAR1 maps to non-prefetchable 8 Mbyte memory block
114 /* a non-NULL handle means there is an HPI allocated buffer */
117 /* non-zero size means a buffer exists, may be external */
224 switch (phm->function) { in subsys_message()
229 phr->error = HPI_ERROR_INVALID_FUNC; in subsys_message()
238 struct hpi_hw_obj *phw = pao->priv; in control_message()
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/kernel/linux/linux-6.6/sound/pci/asihpi/
Dhpi6000.c1 // SPDX-License-Identifier: GPL-2.0-only
5 Copyright (C) 1997-2011 AudioScience Inc. <support@audioscience.com>
18 (C) Copyright AudioScience Inc. 1998-2003
78 /* can't access SDRAM - test#1 */
80 /* can't access SDRAM - test#2 */
210 switch (phm->function) { in subsys_message()
215 phr->error = HPI_ERROR_INVALID_FUNC; in subsys_message()
223 struct hpi_hw_obj *phw = pao->priv; in control_message()
225 switch (phm->function) { in control_message()
227 if (pao->has_control_cache) { in control_message()
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Dhpi6205.c1 // SPDX-License-Identifier: GPL-2.0-only
5 Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
17 (C) Copyright AudioScience Inc. 1998-2010
61 /* Host-to-DSP Control Register (HDCR) bitfields */
70 * BAR1 maps to non-prefetchable 8 Mbyte memory block
114 /* a non-NULL handle means there is an HPI allocated buffer */
117 /* non-zero size means a buffer exists, may be external */
224 switch (phm->function) { in subsys_message()
229 phr->error = HPI_ERROR_INVALID_FUNC; in subsys_message()
238 struct hpi_hw_obj *phw = pao->priv; in control_message()
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/kernel/linux/linux-6.6/drivers/gpu/drm/amd/include/
Datomfirmware.h6 * Description header file of general definitions for OS and pre-OS video drivers
31 * If a change in VBIOS/Driver/Tool's interface is only needed for pre-SoC15 products, then the chan…
115 ATOM_SCALER_DISABLE =0, /*scaler bypass mode, auto-center & no replication*/
116 ATOM_SCALER_CENTER =1, //For Fudo, it's bypass and auto-center & auto replication
202 #define BIOS_VERSION_PREFIX "ATOMBIOSBK-AMD"
245 …tom_string_def atom_bios_string; //Signature to distinguish between Atombios and non-atombios,
604 uint32_t maco_pwrlimit_mw; // bomaco mode power limit in unit of m-watt
605 uint32_t usb_pwrlimit_mw; // power limit when USB is enable in unit of m-watt
656 eDP_TO_LVDS_RX_DISABLE = 0x00, // no eDP->LVDS translator chip
657 …eDP_TO_LVDS_COMMON_ID = 0x01, // common eDP->LVDS translator chip without A…
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Datombios.h2 * Copyright 2006-2007 Advanced Micro Devices, Inc.
107 #define ATOM_SCALER_DISABLE 0 //For Fudo, it's bypass and auto-cengter & no replication
108 #define ATOM_SCALER_CENTER 1 //For Fudo, it's bypass and auto-center & auto replication
110 #define ATOM_SCALER_MULTI_EX 3 //For Fudo only, it's multi-tap mode only used to drive TV or CV,…
222 UCHAR uaFirmWareSignature[4]; //Signature to distinguish between Atombios and non-atombios,
245 UCHAR uaFirmWareSignature[4]; //Signature to distinguish between Atombios and non-atombios,
427 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
433 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
440 …ULONG ulClock; //When returen, it's the re-calculated clock based on given Fb_div Post_Di…
538 …UCHAR ucInputFlag; //Input Flags. ucInputFlag[0] - Strobe(1)/Performance(0)…
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/kernel/linux/linux-5.10/drivers/gpu/drm/amd/include/
Datomfirmware.h6 * Description header file of general definitions for OS nd pre-OS video drivers
31 * If a change in VBIOS/Driver/Tool's interface is only needed for pre-SoC15 products, then the chan…
115 ATOM_SCALER_DISABLE =0, /*scaler bypass mode, auto-center & no replication*/
116 ATOM_SCALER_CENTER =1, //For Fudo, it's bypass and auto-center & auto replication
238 …tom_string_def atom_bios_string; //Signature to distinguish between Atombios and non-atombios,
595 uint32_t maco_pwrlimit_mw; // bomaco mode power limit in unit of m-watt
596 uint32_t usb_pwrlimit_mw; // power limit when USB is enable in unit of m-watt
644 eDP_TO_LVDS_RX_DISABLE = 0x00, // no eDP->LVDS translator chip
645 …eDP_TO_LVDS_COMMON_ID = 0x01, // common eDP->LVDS translator chip without A…
671 /* gpio_id pre-define id for multiple usage */
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Datombios.h2 * Copyright 2006-2007 Advanced Micro Devices, Inc.
107 #define ATOM_SCALER_DISABLE 0 //For Fudo, it's bypass and auto-cengter & no replication
108 #define ATOM_SCALER_CENTER 1 //For Fudo, it's bypass and auto-center & auto replication
110 #define ATOM_SCALER_MULTI_EX 3 //For Fudo only, it's multi-tap mode only used to drive TV or CV,…
222 UCHAR uaFirmWareSignature[4]; //Signature to distinguish between Atombios and non-atombios,
245 UCHAR uaFirmWareSignature[4]; //Signature to distinguish between Atombios and non-atombios,
427 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
433 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
440 …ULONG ulClock; //When returen, it's the re-calculated clock based on given Fb_div Post_Di…
538 …UCHAR ucInputFlag; //Input Flags. ucInputFlag[0] - Strobe(1)/Performance(0)…
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/kernel/linux/linux-5.10/drivers/gpu/drm/radeon/
Datombios.h2 * Copyright 2006-2007 Advanced Micro Devices, Inc.
214 UCHAR uaFirmWareSignature[4]; /*Signature to distinguish between Atombios and non-atombios,
397 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
403 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
410 …ULONG ulClock; //When returen, it's the re-calculated clock based on given Fb_div Post_Di…
504 …UCHAR ucInputFlag; //Input Flags. ucInputFlag[0] - Strobe(1)/Performance(0)…
536 #define ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN 1 // 1-StrobeMode, 0-PerformanceMode
544 …bDiv; //Output:UPPER_WORD=FB_DIV_INTEGER, LOWER_WORD=FB_DIV_FRAC shl (16-FB_FRACTION_BITS)
549 … //Input : ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN: 1-StrobeMode, 0-PerformanceMode
815 // Following function ENABLE sub-function will be used by driver when TMDS/HDMI/LVDS is used, disab…
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/kernel/linux/linux-6.6/drivers/gpu/drm/radeon/
Datombios.h2 * Copyright 2006-2007 Advanced Micro Devices, Inc.
214 UCHAR uaFirmWareSignature[4]; /*Signature to distinguish between Atombios and non-atombios,
397 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
403 …ONG ulPointerReturnFlag:1; // BYTE_3[7]=1 - Return the pointer to the right Data Block; BYTE_…
410 …ULONG ulClock; //When returen, it's the re-calculated clock based on given Fb_div Post_Di…
504 …UCHAR ucInputFlag; //Input Flags. ucInputFlag[0] - Strobe(1)/Performance(0)…
536 #define ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN 1 // 1-StrobeMode, 0-PerformanceMode
544 …bDiv; //Output:UPPER_WORD=FB_DIV_INTEGER, LOWER_WORD=FB_DIV_FRAC shl (16-FB_FRACTION_BITS)
549 … //Input : ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN: 1-StrobeMode, 0-PerformanceMode
815 // Following function ENABLE sub-function will be used by driver when TMDS/HDMI/LVDS is used, disab…
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