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authorLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 12:09:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 12:09:47 -0800
commiteb275167d18684e07ee43bdc0e09a18326540461 (patch)
treeb90df54f7c2a1e08da0ed0891795e5305a9e59db /Documentation/devicetree/bindings/lpddr2
parentec939e4c94bd3ef2fd4f34c15f8aaf79bd0c5ee1 (diff)
parent5f1f15283419ded3e16617ac0b79abc6f2b73bba (diff)
Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM Device-tree updates from Olof Johansson: "As always, the bulk of updates. Some of the news this cycle: New SoC descriptions: - Broadcom BCM2711 - Amlogic Meson A1 and G12 - Freescale S32V234 - Marvell Armada AP807/AP807-quad and CP115 - Realtek RTD1293 and RTD1296 - Rockchip RK3308 New boards and platforms: - Allwinner: NanoPi Duo2 - Amlogic: Ugoos am6 - Atmel at91: Overkiz Kizbox2/4 - Broadcom: RPi4, Luxul XWC-2000 - Marvell: New Espressobin flavor - NXP: i.MX8MN LPDDR4 EVK, i.MX8QXP Colibri, S32V234 EVB, Netronix E60K02 and Kobo Clara HD, Kontron N6311 and N6411, OPOS6UL and OPOS6ULDev - Renesas: Salvator-XS - Rockchip: Beelink A1 (rk3308), rk3308 eval boards, rk3399-roc-pc" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (653 commits) ARM: dts: logicpd-torpedo: Disable USB Host arm: dts: mt6323: add keys, power-controller, rtc and codec arm64: dts: mt8183: add systimer0 device node dt-bindings: mediatek: update bindings for MT8183 systimer arm64: dts: rockchip: fix sdmmc detection on boot on rk3328-roc-cc arm64: dts: rockchip: Split rk3399-roc-pc for with and without mezzanine board. arm64: dts: rockchip: Add Beelink A1 dt-bindings: ARM: rockchip: Add Beelink A1 arm64: dts: rockchip: Add RK3328 audio pipelines arm64: dts: ti: k3-j721e-common-proc-board: Add USB ports arm64: dts: ti: k3-j721e-main: add USB controller nodes ARM: dts: aspeed-g6: Add timer description ARM: dts: aspeed: ast2600evb: Enable i2c buses ARM: dts: at91: add a dts and dtsi file for kizbox2 based boards dt-bindings: arm: at91: Document Kizbox2-2 board binding arm64: dts: meson-gx: fix i2c compatible arm64: dts: meson-gx: cec node should be disabled by default arm64: dts: meson-g12b-odroid-n2: add missing amlogic, s922x compatible arm64: dts: meson-gxm: fix gpu irq order arm64: dts: meson-g12a: fix gpu irq order ...
Diffstat (limited to 'Documentation/devicetree/bindings/lpddr2')
-rw-r--r--Documentation/devicetree/bindings/lpddr2/lpddr2-timings.txt52
-rw-r--r--Documentation/devicetree/bindings/lpddr2/lpddr2.txt102
2 files changed, 0 insertions, 154 deletions
diff --git a/Documentation/devicetree/bindings/lpddr2/lpddr2-timings.txt b/Documentation/devicetree/bindings/lpddr2/lpddr2-timings.txt
deleted file mode 100644
index 9ceb19e0c7fd..000000000000
--- a/Documentation/devicetree/bindings/lpddr2/lpddr2-timings.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* AC timing parameters of LPDDR2(JESD209-2) memories for a given speed-bin
-
-Required properties:
-- compatible : Should be "jedec,lpddr2-timings"
-- min-freq : minimum DDR clock frequency for the speed-bin. Type is <u32>
-- max-freq : maximum DDR clock frequency for the speed-bin. Type is <u32>
-
-Optional properties:
-
-The following properties represent AC timing parameters from the memory
-data-sheet of the device for a given speed-bin. All these properties are
-of type <u32> and the default unit is ps (pico seconds). Parameters with
-a different unit have a suffix indicating the unit such as 'tRAS-max-ns'
-- tRCD
-- tWR
-- tRAS-min
-- tRRD
-- tWTR
-- tXP
-- tRTP
-- tDQSCK-max
-- tFAW
-- tZQCS
-- tZQinit
-- tRPab
-- tZQCL
-- tCKESR
-- tRAS-max-ns
-- tDQSCK-max-derated
-
-Example:
-
-timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
- compatible = "jedec,lpddr2-timings";
- min-freq = <10000000>;
- max-freq = <400000000>;
- tRPab = <21000>;
- tRCD = <18000>;
- tWR = <15000>;
- tRAS-min = <42000>;
- tRRD = <10000>;
- tWTR = <7500>;
- tXP = <7500>;
- tRTP = <7500>;
- tCKESR = <15000>;
- tDQSCK-max = <5500>;
- tFAW = <50000>;
- tZQCS = <90000>;
- tZQCL = <360000>;
- tZQinit = <1000000>;
- tRAS-max-ns = <70000>;
-};
diff --git a/Documentation/devicetree/bindings/lpddr2/lpddr2.txt b/Documentation/devicetree/bindings/lpddr2/lpddr2.txt
deleted file mode 100644
index 58354a075e13..000000000000
--- a/Documentation/devicetree/bindings/lpddr2/lpddr2.txt
+++ /dev/null
@@ -1,102 +0,0 @@
-* LPDDR2 SDRAM memories compliant to JEDEC JESD209-2
-
-Required properties:
-- compatible : Should be one of - "jedec,lpddr2-nvm", "jedec,lpddr2-s2",
- "jedec,lpddr2-s4"
-
- "ti,jedec-lpddr2-s2" should be listed if the memory part is LPDDR2-S2 type
-
- "ti,jedec-lpddr2-s4" should be listed if the memory part is LPDDR2-S4 type
-
- "ti,jedec-lpddr2-nvm" should be listed if the memory part is LPDDR2-NVM type
-
-- density : <u32> representing density in Mb (Mega bits)
-
-- io-width : <u32> representing bus width. Possible values are 8, 16, and 32
-
-Optional properties:
-
-The following optional properties represent the minimum value of some AC
-timing parameters of the DDR device in terms of number of clock cycles.
-These values shall be obtained from the device data-sheet.
-- tRRD-min-tck
-- tWTR-min-tck
-- tXP-min-tck
-- tRTP-min-tck
-- tCKE-min-tck
-- tRPab-min-tck
-- tRCD-min-tck
-- tWR-min-tck
-- tRASmin-min-tck
-- tCKESR-min-tck
-- tFAW-min-tck
-
-Child nodes:
-- The lpddr2 node may have one or more child nodes of type "lpddr2-timings".
- "lpddr2-timings" provides AC timing parameters of the device for
- a given speed-bin. The user may provide the timings for as many
- speed-bins as is required. Please see Documentation/devicetree/
- bindings/lpddr2/lpddr2-timings.txt for more information on "lpddr2-timings"
-
-Example:
-
-elpida_ECB240ABACN : lpddr2 {
- compatible = "Elpida,ECB240ABACN","jedec,lpddr2-s4";
- density = <2048>;
- io-width = <32>;
-
- tRPab-min-tck = <3>;
- tRCD-min-tck = <3>;
- tWR-min-tck = <3>;
- tRASmin-min-tck = <3>;
- tRRD-min-tck = <2>;
- tWTR-min-tck = <2>;
- tXP-min-tck = <2>;
- tRTP-min-tck = <2>;
- tCKE-min-tck = <3>;
- tCKESR-min-tck = <3>;
- tFAW-min-tck = <8>;
-
- timings_elpida_ECB240ABACN_400mhz: lpddr2-timings@0 {
- compatible = "jedec,lpddr2-timings";
- min-freq = <10000000>;
- max-freq = <400000000>;
- tRPab = <21000>;
- tRCD = <18000>;
- tWR = <15000>;
- tRAS-min = <42000>;
- tRRD = <10000>;
- tWTR = <7500>;
- tXP = <7500>;
- tRTP = <7500>;
- tCKESR = <15000>;
- tDQSCK-max = <5500>;
- tFAW = <50000>;
- tZQCS = <90000>;
- tZQCL = <360000>;
- tZQinit = <1000000>;
- tRAS-max-ns = <70000>;
- };
-
- timings_elpida_ECB240ABACN_200mhz: lpddr2-timings@1 {
- compatible = "jedec,lpddr2-timings";
- min-freq = <10000000>;
- max-freq = <200000000>;
- tRPab = <21000>;
- tRCD = <18000>;
- tWR = <15000>;
- tRAS-min = <42000>;
- tRRD = <10000>;
- tWTR = <10000>;
- tXP = <7500>;
- tRTP = <7500>;
- tCKESR = <15000>;
- tDQSCK-max = <5500>;
- tFAW = <50000>;
- tZQCS = <90000>;
- tZQCL = <360000>;
- tZQinit = <1000000>;
- tRAS-max-ns = <70000>;
- };
-
-}