From: Svyatoslav Ryhel <clamor95@gmail.com>
To: Krzysztof Kozlowski <krzk@kernel.org>,
Rob Herring <robh@kernel.org>, Conor Dooley <conor+dt@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
Prashant Gaikwad <pgaikwad@nvidia.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Svyatoslav Ryhel <clamor95@gmail.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Georgi Djakov <djakov@kernel.org>,
Dmitry Osipenko <digetx@gmail.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org
Subject: [PATCH v1 6/9] dt-bindings: memory: Document Tegra114 External Memory Controller
Date: Tue, 25 Feb 2025 16:34:58 +0200 [thread overview]
Message-ID: <20250225143501.68966-7-clamor95@gmail.com> (raw)
In-Reply-To: <20250225143501.68966-1-clamor95@gmail.com>
Document External Memory Controller found in the Tegra 4 SoC.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
.../nvidia,tegra114-emc.yaml | 431 ++++++++++++++++++
1 file changed, 431 insertions(+)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/nvidia,tegra114-emc.yaml
diff --git a/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra114-emc.yaml b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra114-emc.yaml
new file mode 100644
index 000000000000..dfa9d31cf483
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/nvidia,tegra114-emc.yaml
@@ -0,0 +1,431 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra114-emc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra114 SoC External Memory Controller
+
+maintainers:
+ - Svyatoslav Ryhel <clamor95@gmail.com>
+
+description:
+ The EMC interfaces with the off-chip SDRAM to service the request stream sent
+ from the memory controller.
+
+properties:
+ compatible:
+ const: nvidia,tegra114-emc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: emc
+
+ interrupts:
+ maxItems: 1
+
+ "#interconnect-cells":
+ const: 0
+
+ nvidia,memory-controller:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle of the memory controller node
+
+ power-domains:
+ maxItems: 1
+ description:
+ Phandle of the SoC "core" power domain.
+
+ operating-points-v2:
+ description:
+ Should contain freqs and voltages and opp-supported-hw property, which is
+ a bitfield indicating SoC speedo ID mask.
+
+patternProperties:
+ "^emc-timings-[0-9]+$":
+ type: object
+ additionalProperties: false
+ properties:
+ nvidia,ram-code:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the RAM_CODE field in the PMC_STRAPPING_OPT_A register that
+ this timing set is used for
+
+ patternProperties:
+ "^timing-[0-9]+$":
+ type: object
+ properties:
+ clock-frequency:
+ description:
+ external memory clock rate in Hz
+ minimum: 1000000
+ maximum: 1000000000
+
+ nvidia,emc-auto-cal-config:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_AUTO_CAL_CONFIG register for this set of timings
+
+ nvidia,emc-auto-cal-config2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_AUTO_CAL_CONFIG2 register for this set of timings
+
+ nvidia,emc-auto-cal-config3:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_AUTO_CAL_CONFIG3 register for this set of timings
+
+ nvidia,emc-auto-cal-interval:
+ description:
+ pad calibration interval in microseconds
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 2097151
+
+ nvidia,emc-cfg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_CFG register for this set of timings
+
+ nvidia,emc-ctt-term-ctrl:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_CTT_TERM_CTRL register for this set of timings
+
+ nvidia,emc-mode-1:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_MRW register for this set of timings
+
+ nvidia,emc-mode-2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_MRW2 register for this set of timings
+
+ nvidia,emc-mode-4:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_MRW4 register for this set of timings
+
+ nvidia,emc-mode-reset:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ reset value of the EMC_MRS register for this set of timings
+
+ nvidia,emc-mrs-wait-cnt:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMR_MRS_WAIT_CNT register for this set of timings
+
+ nvidia,emc-sel-dpd-ctrl:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_SEL_DPD_CTRL register for this set of timings
+
+ nvidia,emc-xm2dqspadctrl2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_XM2DQSPADCTRL2 register for this set of timings
+
+ nvidia,emc-zcal-cnt-long:
+ description:
+ number of EMC clocks to wait before issuing any commands after
+ clock change
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 1023
+
+ nvidia,emc-zcal-interval:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ value of the EMC_ZCAL_INTERVAL register for this set of timings
+
+ nvidia,emc-configuration:
+ description:
+ EMC timing characterization data. These are the registers (see
+ section "20.11.2 EMC Registers" in the TRM) whose values need to
+ be specified, according to the board documentation.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: EMC_RC
+ - description: EMC_RFC
+ - description: EMC_RAS
+ - description: EMC_RP
+ - description: EMC_R2W
+ - description: EMC_W2R
+ - description: EMC_R2P
+ - description: EMC_W2P
+ - description: EMC_RD_RCD
+ - description: EMC_WR_RCD
+ - description: EMC_RRD
+ - description: EMC_REXT
+ - description: EMC_WEXT
+ - description: EMC_WDV
+ - description: EMC_WDV_MASK
+ - description: EMC_QUSE
+ - description: EMC_IBDLY
+ - description: EMC_EINPUT
+ - description: EMC_EINPUT_DURATION
+ - description: EMC_PUTERM_EXTRA
+ - description: EMC_CDB_CNTL_1
+ - description: EMC_CDB_CNTL_2
+ - description: EMC_QRST
+ - description: EMC_QSAFE
+ - description: EMC_RDV
+ - description: EMC_RDV_MASK
+ - description: EMC_REFRESH
+ - description: EMC_BURST_REFRESH_NUM
+ - description: EMC_PRE_REFRESH_REQ_CNT
+ - description: EMC_PDEX2WR
+ - description: EMC_PDEX2RD
+ - description: EMC_PCHG2PDEN
+ - description: EMC_ACT2PDEN
+ - description: EMC_AR2PDEN
+ - description: EMC_RW2PDEN
+ - description: EMC_TXSR
+ - description: EMC_TXSRDLL
+ - description: EMC_TCKE
+ - description: EMC_TCKESR
+ - description: EMC_TPD
+ - description: EMC_TFAW
+ - description: EMC_TRPAB
+ - description: EMC_TCLKSTABLE
+ - description: EMC_TCLKSTOP
+ - description: EMC_TREFBW
+ - description: EMC_QUSE_EXTRA
+ - description: EMC_FBIO_CFG6
+ - description: EMC_ODT_WRITE
+ - description: EMC_ODT_READ
+ - description: EMC_FBIO_CFG5
+ - description: EMC_CFG_DIG_DLL
+ - description: EMC_CFG_DIG_DLL_PERIOD
+ - description: EMC_DLL_XFORM_DQS0
+ - description: EMC_DLL_XFORM_DQS1
+ - description: EMC_DLL_XFORM_DQS2
+ - description: EMC_DLL_XFORM_DQS3
+ - description: EMC_DLL_XFORM_DQS4
+ - description: EMC_DLL_XFORM_DQS5
+ - description: EMC_DLL_XFORM_DQS6
+ - description: EMC_DLL_XFORM_DQS7
+ - description: EMC_DLL_XFORM_QUSE0
+ - description: EMC_DLL_XFORM_QUSE1
+ - description: EMC_DLL_XFORM_QUSE2
+ - description: EMC_DLL_XFORM_QUSE3
+ - description: EMC_DLL_XFORM_QUSE4
+ - description: EMC_DLL_XFORM_QUSE5
+ - description: EMC_DLL_XFORM_QUSE6
+ - description: EMC_DLL_XFORM_QUSE7
+ - description: EMC_DLI_TRIM_TXDQS0
+ - description: EMC_DLI_TRIM_TXDQS1
+ - description: EMC_DLI_TRIM_TXDQS2
+ - description: EMC_DLI_TRIM_TXDQS3
+ - description: EMC_DLI_TRIM_TXDQS4
+ - description: EMC_DLI_TRIM_TXDQS5
+ - description: EMC_DLI_TRIM_TXDQS6
+ - description: EMC_DLI_TRIM_TXDQS7
+ - description: EMC_DLL_XFORM_DQ0
+ - description: EMC_DLL_XFORM_DQ1
+ - description: EMC_DLL_XFORM_DQ2
+ - description: EMC_DLL_XFORM_DQ3
+ - description: EMC_XM2CMDPADCTRL
+ - description: EMC_XM2CMDPADCTRL4
+ - description: EMC_XM2DQPADCTRL2
+ - description: EMC_XM2CLKPADCTRL
+ - description: EMC_XM2COMPPADCTRL
+ - description: EMC_XM2VTTGENPADCTRL
+ - description: EMC_XM2VTTGENPADCTRL2
+ - description: EMC_XM2DQSPADCTRL3
+ - description: EMC_XM2DQSPADCTRL4
+ - description: EMC_DSR_VTTGEN_DRV
+ - description: EMC_TXDSRVTTGEN
+ - description: EMC_FBIO_SPARE
+ - description: EMC_ZCAL_WAIT_CNT
+ - description: EMC_MRS_WAIT_CNT2
+ - description: EMC_CTT
+ - description: EMC_CTT_DURATION
+ - description: EMC_DYN_SELF_REF_CONTROL
+
+ required:
+ - clock-frequency
+ - nvidia,emc-auto-cal-config
+ - nvidia,emc-auto-cal-config2
+ - nvidia,emc-auto-cal-config3
+ - nvidia,emc-auto-cal-interval
+ - nvidia,emc-cfg
+ - nvidia,emc-ctt-term-ctrl
+ - nvidia,emc-mode-1
+ - nvidia,emc-mode-2
+ - nvidia,emc-mode-4
+ - nvidia,emc-mode-reset
+ - nvidia,emc-mrs-wait-cnt
+ - nvidia,emc-sel-dpd-ctrl
+ - nvidia,emc-xm2dqspadctrl2
+ - nvidia,emc-zcal-cnt-long
+ - nvidia,emc-zcal-interval
+ - nvidia,emc-configuration
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - nvidia,memory-controller
+ - "#interconnect-cells"
+ - operating-points-v2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra114-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ external-memory-controller@7001b000 {
+ compatible = "nvidia,tegra114-emc";
+ reg = <0x7001b000 0x1000>;
+ interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA114_CLK_EMC>;
+ clock-names = "emc";
+
+ nvidia,memory-controller = <&mc>;
+ operating-points-v2 = <&dvfs_opp_table>;
+ power-domains = <&domain>;
+
+ #interconnect-cells = <0>;
+
+ emc-timings-0 {
+ nvidia,ram-code = <0>;
+
+ timing-0 {
+ clock-frequency = <12750000>;
+
+ nvidia,emc-auto-cal-config = <0xa0f10f0f>;
+ nvidia,emc-auto-cal-config2 = <0x00000000>;
+ nvidia,emc-auto-cal-config3 = <0x00000000>;
+ nvidia,emc-auto-cal-interval = <0x001fffff>;
+ nvidia,emc-cfg = <0x7324000e>;
+ nvidia,emc-ctt-term-ctrl = <0x00000802>;
+ nvidia,emc-mode-1 = <0x80100003>;
+ nvidia,emc-mode-2 = <0x80200008>;
+ nvidia,emc-mode-4 = <0x00000000>;
+ nvidia,emc-mode-reset = <0x80001221>;
+ nvidia,emc-mrs-wait-cnt = <0x000c000c>;
+ nvidia,emc-sel-dpd-ctrl = <0x00040320>;
+ nvidia,emc-xm2dqspadctrl2 = <0x0000a11c>;
+ nvidia,emc-zcal-cnt-long = <0x00000042>;
+ nvidia,emc-zcal-interval = <0x00000000>;
+
+ nvidia,emc-configuration = <
+ 0x00000000 /* EMC_RC */
+ 0x00000003 /* EMC_RFC */
+ 0x00000000 /* EMC_RAS */
+ 0x00000000 /* EMC_RP */
+ 0x00000004 /* EMC_R2W */
+ 0x0000000a /* EMC_W2R */
+ 0x00000003 /* EMC_R2P */
+ 0x0000000b /* EMC_W2P */
+ 0x00000000 /* EMC_RD_RCD */
+ 0x00000000 /* EMC_WR_RCD */
+ 0x00000003 /* EMC_RRD */
+ 0x00000001 /* EMC_REXT */
+ 0x00000000 /* EMC_WEXT */
+ 0x00000005 /* EMC_WDV */
+ 0x0000000f /* EMC_WDV_MASK */
+ 0x00000006 /* EMC_QUSE */
+ 0x00000006 /* EMC_IBDLY */
+ 0x00000004 /* EMC_EINPUT */
+ 0x00000004 /* EMC_EINPUT_DURATION */
+ 0x00010000 /* EMC_PUTERM_EXTRA */
+ 0x00000000 /* EMC_CDB_CNTL_1 */
+ 0x00000000 /* EMC_CDB_CNTL_2 */
+ 0x00000004 /* EMC_QRST */
+ 0x00000009 /* EMC_QSAFE */
+ 0x0000000d /* EMC_RDV */
+ 0x0000000f /* EMC_RDV_MASK */
+ 0x00000060 /* EMC_REFRESH */
+ 0x00000000 /* EMC_BURST_REFRESH_NUM */
+ 0x00000018 /* EMC_PRE_REFRESH_REQ_CNT */
+ 0x00000002 /* EMC_PDEX2WR */
+ 0x00000002 /* EMC_PDEX2RD */
+ 0x00000001 /* EMC_PCHG2PDEN */
+ 0x00000000 /* EMC_ACT2PDEN */
+ 0x00000007 /* EMC_AR2PDEN */
+ 0x0000000f /* EMC_RW2PDEN */
+ 0x00000005 /* EMC_TXSR */
+ 0x00000005 /* EMC_TXSRDLL */
+ 0x00000004 /* EMC_TCKE */
+ 0x00000004 /* EMC_TCKESR */
+ 0x00000004 /* EMC_TPD */
+ 0x00000004 /* EMC_TFAW */
+ 0x00000000 /* EMC_TRPAB */
+ 0x00000004 /* EMC_TCLKSTABLE */
+ 0x00000005 /* EMC_TCLKSTOP */
+ 0x00000064 /* EMC_TREFBW */
+ 0x00000005 /* EMC_QUSE_EXTRA */
+ 0x00000006 /* EMC_FBIO_CFG6 */
+ 0x00000020 /* EMC_ODT_WRITE */
+ 0x00000000 /* EMC_ODT_READ */
+ 0x0000aa88 /* EMC_FBIO_CFG5 */
+ 0x002c00a0 /* EMC_CFG_DIG_DLL */
+ 0x00008000 /* EMC_CFG_DIG_DLL_PERIOD */
+ 0x00064000 /* EMC_DLL_XFORM_DQS0 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS1 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS2 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS3 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS4 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS5 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS6 */
+ 0x00064000 /* EMC_DLL_XFORM_DQS7 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE0 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE1 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE2 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE3 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE4 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE5 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE6 */
+ 0x00000000 /* EMC_DLL_XFORM_QUSE7 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS0 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS1 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS2 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS3 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS4 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS5 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS6 */
+ 0x00000000 /* EMC_DLI_TRIM_TXDQS7 */
+ 0x0007c000 /* EMC_DLL_XFORM_DQ0 */
+ 0x0007c000 /* EMC_DLL_XFORM_DQ1 */
+ 0x0007c000 /* EMC_DLL_XFORM_DQ2 */
+ 0x0007c000 /* EMC_DLL_XFORM_DQ3 */
+ 0x001112a0 /* EMC_XM2CMDPADCTRL */
+ 0x00000000 /* EMC_XM2CMDPADCTRL4 */
+ 0x00000000 /* EMC_XM2DQPADCTRL2 */
+ 0x77ffc085 /* EMC_XM2CLKPADCTRL */
+ 0x81f1f108 /* EMC_XM2COMPPADCTRL */
+ 0x03037504 /* EMC_XM2VTTGENPADCTRL */
+ 0x0000003f /* EMC_XM2VTTGENPADCTRL2 */
+ 0x20820800 /* EMC_XM2DQSPADCTRL3 */
+ 0x00249249 /* EMC_XM2DQSPADCTRL4 */
+ 0x0000003f /* EMC_DSR_VTTGEN_DRV */
+ 0x00000007 /* EMC_TXDSRVTTGEN */
+ 0x02000000 /* EMC_FBIO_SPARE */
+ 0x00000042 /* EMC_ZCAL_WAIT_CNT */
+ 0x000c000c /* EMC_MRS_WAIT_CNT2 */
+ 0x00000000 /* EMC_CTT */
+ 0x00000000 /* EMC_CTT_DURATION */
+ 0x800001c5 /* EMC_DYN_SELF_REF_CONTROL */
+ >;
+ };
+ };
+ };
--
2.43.0
next prev parent reply other threads:[~2025-02-25 14:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-25 14:34 [PATCH v1 0/9] Tegra114: implement EMC support Svyatoslav Ryhel
2025-02-25 14:34 ` [PATCH v1 1/9] ARM: tegra: Add ACTMON support on Tegra114 Svyatoslav Ryhel
2025-02-25 17:33 ` Krzysztof Kozlowski
2025-02-25 14:34 ` [PATCH v1 2/9] dt-bindings: memory: Document Tegra114 Memory Controller Svyatoslav Ryhel
2025-02-25 17:37 ` Krzysztof Kozlowski
2025-02-25 14:34 ` [PATCH v1 3/9] drivers: memory: tegra: implement EMEM regs and ICC ops for T114 Svyatoslav Ryhel
2025-02-25 14:34 ` [PATCH v1 4/9] dt-bindings: memory: tegra114: Add memory client IDs Svyatoslav Ryhel
2025-02-25 17:33 ` Krzysztof Kozlowski
2025-02-25 14:34 ` [PATCH v1 5/9] clk: tegra114: remove emc to mc clock mux Svyatoslav Ryhel
2025-02-25 14:34 ` Svyatoslav Ryhel [this message]
2025-02-25 17:41 ` [PATCH v1 6/9] dt-bindings: memory: Document Tegra114 External Memory Controller Krzysztof Kozlowski
2025-02-26 15:15 ` Rob Herring
2025-02-26 15:28 ` Svyatoslav Ryhel
2025-02-25 14:34 ` [PATCH v1 7/9] memory: tegra: Add Tegra114 EMC driver Svyatoslav Ryhel
2025-03-06 19:42 ` Dmitry Osipenko
2025-03-06 19:48 ` Svyatoslav Ryhel
2025-03-06 20:06 ` Dmitry Osipenko
2025-03-07 6:58 ` Svyatoslav Ryhel
2025-02-25 14:35 ` [PATCH v1 8/9] ARM: tegra: Add External Memory Controller node on Tegra114 Svyatoslav Ryhel
2025-02-25 14:35 ` [PATCH v1 9/9] ARM: tegra: Add EMC OPP and ICC properties to Tegra114 EMC and ACTMON device-tree nodes Svyatoslav Ryhel
2025-02-26 15:42 ` [PATCH v1 0/9] Tegra114: implement EMC support Rob Herring (Arm)
2025-04-08 5:43 ` Svyatoslav Ryhel
2025-04-08 5:47 ` Krzysztof Kozlowski
2025-04-08 5:49 ` Svyatoslav Ryhel
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