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/linux-6.12.1/Documentation/devicetree/bindings/memory-controllers/ddr/
Djedec,lpddr2.yaml4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2.yaml#
7 title: LPDDR2 SDRAM compliant to JEDEC JESD209-2
23 - jedec,lpddr2-nvm
24 - jedec,lpddr2-s2
25 - jedec,lpddr2-s4
27 - pattern: "^lpddr2-[0-9a-f]{2},[0-9a-f]{4}$"
29 - jedec,lpddr2-nvm
30 - jedec,lpddr2-s2
31 - jedec,lpddr2-s4
128 "^lpddr2-timings":
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Djedec,lpddr2-timings.yaml4 $id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr2-timings.yaml#
7 title: LPDDR2 SDRAM AC timing parameters for a given speed-bin
14 const: jedec,lpddr2-timings
117 compatible = "jedec,lpddr2-timings";
Djedec,lpddr-channel.yaml21 - jedec,lpddr2-channel
67 const: jedec,lpddr2-channel
71 $ref: /schemas/memory-controllers/ddr/jedec,lpddr2.yaml#
/linux-6.12.1/arch/arm/boot/dts/ti/omap/
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-6.12.1/Documentation/devicetree/bindings/memory-controllers/
Dnvidia,tegra20-emc.yaml19 standard protocols: DDR1, LPDDR2 and DDR2.
167 lpddr2:
168 $ref: ddr/jedec,lpddr2.yaml#
180 - lpddr2
242 lpddr2 {
243 compatible = "elpida,B8132B2PB-6D-F", "jedec,lpddr2-s4";
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-6.12.1/drivers/mtd/lpddr/
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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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
/linux-6.12.1/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-6.12.1/drivers/memory/
Djedec_ddr.h96 * LPDDR2 related defines
143 * Structure for timings from the LPDDR2 datasheet
205 * Structure for information about LPDDR2 chip. All parameters are
221 * Structure for timings for LPDDR3 based on LPDDR2 plus additional fields.
Dof_memory.c96 * @device_type: Type of ddr(LPDDR2 S2/S4)
117 tim_compat = "jedec,lpddr2-timings"; in of_get_ddr_timings()
307 * of_lpddr2_get_info() - extracts information about the lpddr2 chip.
308 * @np: Pointer to device tree node containing lpddr2 info
351 if (of_device_is_compatible(np, "jedec,lpddr2-s4")) in of_lpddr2_get_info()
353 else if (of_device_is_compatible(np, "jedec,lpddr2-s2")) in of_lpddr2_get_info()
355 else if (of_device_is_compatible(np, "jedec,lpddr2-nvm")) in of_lpddr2_get_info()
Djedec_ddr_data.c14 /* LPDDR2 addressing details from JESD209-2 section 2.4 */
30 /* LPDDR2 AC timing parameters from JESD209-2 section 12 */
DKconfig97 supports one or more of DDR2, DDR3, and LPDDR2 SDRAM protocols.
98 This driver takes care of only LPDDR2 memories presently. The
Demif.c37 * @temperature_level: Maximum temperature of LPDDR2 devices attached
184 * Workaround for errata i743 - LPDDR2 Power-Down State is Not in set_lpmode()
503 /* No de-rating for non-lpddr2 devices */ in setup_temperature_sensitive_regs()
885 if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s4")) in of_get_ddr_info()
887 else if (of_device_is_compatible(np_ddr, "jedec,lpddr2-s2")) in of_get_ddr_info()
/linux-6.12.1/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-6.12.1/drivers/soc/atmel/
Dsoc.c163 "sama5d27c 128MiB LPDDR2 SiP", "sama5d2"),
166 "sama5d27c 256MiB LPDDR2 SiP", "sama5d2"),
178 "sama5d28c 128MiB LPDDR2 SiP", "sama5d2"),
181 "sama5d28c 256MiB LPDDR2 SiP", "sama5d2"),
/linux-6.12.1/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-6.12.1/arch/arm/boot/dts/nvidia/
Dtegra30-asus-tf201.dts113 /* Elpida 1GB EDB8132B2MA-8D-F LPDDR2 400MHz */
168 /* TF201 Unknown 1GB LPDDR2 500MHZ */
225 /* Elpida 1GB EDB8132B2MA-8D-F LPDDR2 400MHz */
405 /* TF201 Unknown 1GB LPDDR2 500MHZ */
Dtegra30-lg-p895.dts117 /* Hynix 1GB H9TCNNN8JDMMPR LPDDR2 533MHz */
194 /* Hynix 1GB H9TCNNN8JDMMPR LPDDR2 533MHz */
/linux-6.12.1/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-6.12.1/drivers/memory/tegra/
Dtegra20-emc.c431 if (of_node_name_eq(child, "lpddr2")) in tegra_emc_load_timings_from_dt()
484 lpddr2_np = of_find_node_by_name(np, "lpddr2"); in tegra_emc_find_node_by_ram_code()
553 /* wait for the LPDDR2 data-valid interrupt */ in emc_read_lpddr_mode_register()
648 dram_type_str = "LPDDR2"; in emc_setup_hw()
/linux-6.12.1/arch/arm/mach-tegra/
Dsleep-tegra30.S548 /* Issue a ZQ_CAL for dev0 - LPDDR2 */
558 /* Issue a ZQ_CAL for dev0 - LPDDR2 */
/linux-6.12.1/arch/arm/mach-imx/
Dsuspend-imx6.S212 /* LPDDR2's last 3 IOs need special setting */
/linux-6.12.1/drivers/i2c/
Di2c-smbus.c420 case 0x1C: /* LPDDR2 */ in i2c_register_spd()

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