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/Linux-v5.10/Documentation/devicetree/bindings/ddr/
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
35 - The lpddr2 node may have one or more child nodes of type "lpddr2-timings".
36 "lpddr2-timings" provides AC timing parameters of the device for
39 bindings/ddr/lpddr2-timings.txt for more information on "lpddr2-timings"
43 elpida_ECB240ABACN : lpddr2 {
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Dlpddr2-timings.txt1 * AC timing parameters of LPDDR2(JESD209-2) memories for a given speed-bin
4 - compatible : Should be "jedec,lpddr2-timings"
33 timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
34 compatible = "jedec,lpddr2-timings";
Dlpddr3-timings.txt3 The structures are based on LPDDR2 and extended where needed.
/Linux-v5.10/arch/arm/boot/dts/
Delpida_ecb240abacn.dtsi7 elpida_ECB240ABACN: lpddr2 {
8 compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
24 timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
25 compatible = "jedec,lpddr2-timings";
46 timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
47 compatible = "jedec,lpddr2-timings";
/Linux-v5.10/drivers/mtd/lpddr/
DKconfig2 menu "LPDDR & LPDDR2 PCM memory drivers"
25 tristate "Support for LPDDR2-NVM flash chips"
27 This option enables support of PCM memories with a LPDDR2-NVM
Dlpddr2_nvm.c3 * LPDDR2-NVM MTD driver. This module provides read, write, erase, lock/unlock
4 * support for LPDDR2-NVM PCM memories
54 /* LPDDR2-NVM Commands */
63 /* LPDDR2-NVM Registers offset */
131 * Enable lpddr2-nvm Overlay Window
132 * Overlay Window is a memory mapped area containing all LPDDR2-NVM registers
146 * Disable lpddr2-nvm Overlay Window
147 * Overlay Window is a memory mapped area containing all LPDDR2-NVM registers
161 * Execute lpddr2-nvm operations
231 * Execute lpddr2-nvm operations @ block level
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/Linux-v5.10/Documentation/driver-api/memory-devices/
Dti-emif.rst30 supports one or more of DDR2, DDR3, and LPDDR2 SDRAM protocols.
31 This driver takes care of only LPDDR2 memories presently. The
63 - mr4 : last polled value of MR4 register in the LPDDR2 device. MR4
/Linux-v5.10/include/linux/platform_data/
Demif_plat.h46 * @type: Device type (LPDDR2-S4, LPDDR2-S2 etc)
80 * @temp_alert_poll_interval_ms: LPDDR2 MR4 polling interval at nominal
/Linux-v5.10/drivers/soc/atmel/
Dsoc.c97 "sama5d27c 128MiB LPDDR2 SiP", "sama5d2"),
99 "sama5d27c 256MiB LPDDR2 SiP", "sama5d2"),
107 "sama5d28c 128MiB LPDDR2 SiP", "sama5d2"),
109 "sama5d28c 256MiB LPDDR2 SiP", "sama5d2"),
/Linux-v5.10/drivers/memory/
Djedec_ddr.h96 * LPDDR2 related defines
123 * Structure for timings from the LPDDR2 datasheet
174 * Structure for timings for LPDDR3 based on LPDDR2 plus additional fields.
Djedec_ddr_data.c14 /* LPDDR2 addressing details from JESD209-2 section 2.4 */
30 /* LPDDR2 AC timing parameters from JESD209-2 section 12 */
DKconfig99 supports one or more of DDR2, DDR3, and LPDDR2 SDRAM protocols.
100 This driver takes care of only LPDDR2 memories presently. The
Dof_memory.c96 * @device_type: Type of ddr(LPDDR2 S2/S4)
117 tim_compat = "jedec,lpddr2-timings"; in of_get_ddr_timings()
Demif.c36 * @temperature_level: Maximum temperature of LPDDR2 devices attached
218 * Workaround for errata i743 - LPDDR2 Power-Down State is Not in set_lpmode()
475 /* tXSNR = tRFCab_ps + 10 ns(tRFCab_ps for LPDDR2). */ in get_sdram_tim_2_shdw()
479 /* XSRD same as XSNR for LPDDR2 */ in get_sdram_tim_2_shdw()
890 /* No de-rating for non-lpddr2 devices */ in setup_temperature_sensitive_regs()
1278 if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s4")) in of_get_ddr_info()
1280 else if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s2")) in of_get_ddr_info()
/Linux-v5.10/Documentation/devicetree/bindings/memory-controllers/ti/
Demif.txt5 DDR2/DDR3/LPDDR2 protocols. This binding describes a given instance
24 - device-handle : phandle to a "lpddr2" node representing the memory part
/Linux-v5.10/drivers/cpufreq/
Ds5pv210-cpufreq.c115 LPDDR2 = 0x2, enumerator
525 * check_mem_type : This driver only support LPDDR & LPDDR2. in s5pv210_cpu_init()
530 if ((mem_type != LPDDR) && (mem_type != LPDDR2)) { in s5pv210_cpu_init()
/Linux-v5.10/Documentation/devicetree/bindings/memory-controllers/
Dnvidia,tegra30-mc.yaml34 and arbitrates among them to allocate memory bandwidth for DDR3L and LPDDR2
Dnvidia,tegra30-emc.yaml18 settings. Tegra30 EMC supports multiple JEDEC standard protocols: LPDDR2,
/Linux-v5.10/arch/arm/mach-tegra/
Dsleep-tegra30.S503 /* Issue a ZQ_CAL for dev0 - LPDDR2 */
513 /* Issue a ZQ_CAL for dev0 - LPDDR2 */
/Linux-v5.10/arch/arm/mach-imx/
Dsuspend-imx6.S209 /* LPDDR2's last 3 IOs need special setting */
/Linux-v5.10/drivers/i2c/
Di2c-smbus.c367 case 0x1C: /* LPDDR2 */ in i2c_register_spd()
/Linux-v5.10/drivers/gpu/drm/amd/include/
Datomfirmware.h1367 LpDdr2MemType, ///< Assign 28 to LPDDR2