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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Browse Source 
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
  ...
This commit is contained in:
Linus Torvalds
2019-12-05 12:09:47 -08:00
parent ec939e4c94 5f1f152834
commit eb275167d1
498 changed files with 37569 additions and 10479 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
Documentation/devicetree/bindings/memory-controllers/exynos5422-dmc.txt Normal file
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* Exynos5422 frequency and voltage scaling for Dynamic Memory Controller device
The Samsung Exynos5422 SoC has DMC (Dynamic Memory Controller) to which the DRAM
memory chips are connected. The driver is to monitor the controller in runtime
and switch frequency and voltage. To monitor the usage of the controller in
runtime, the driver uses the PPMU (Platform Performance Monitoring Unit), which
is able to measure the current load of the memory.
When 'userspace' governor is used for the driver, an application is able to
switch the DMC and memory frequency.
Required properties for DMC device for Exynos5422:
- compatible: Should be "samsung,exynos5422-dmc".
- clocks : list of clock specifiers, must contain an entry for each
required entry in clock-names for CLK_FOUT_SPLL, CLK_MOUT_SCLK_SPLL,
CLK_FF_DOUT_SPLL2, CLK_FOUT_BPLL, CLK_MOUT_BPLL, CLK_SCLK_BPLL,
CLK_MOUT_MX_MSPLL_CCORE, CLK_MOUT_MX_MSPLL_CCORE_PHY, CLK_MOUT_MCLK_CDREX,
- clock-names : should include "fout_spll", "mout_sclk_spll", "ff_dout_spll2",
"fout_bpll", "mout_bpll", "sclk_bpll", "mout_mx_mspll_ccore",
"mout_mclk_cdrex" entries
- devfreq-events : phandles for PPMU devices connected to this DMC.
- vdd-supply : phandle for voltage regulator which is connected.
- reg : registers of two CDREX controllers.
- operating-points-v2 : phandle for OPPs described in v2 definition.
- device-handle : phandle of the connected DRAM memory device. For more
information please refer to documentation file:
Documentation/devicetree/bindings/ddr/lpddr3.txt
- devfreq-events : phandles of the PPMU events used by the controller.
- samsung,syscon-clk : phandle of the clock register set used by the controller,
these registers are used for enabling a 'pause' feature and are not
exposed by clock framework but they must be used in a safe way.
The register offsets are in the driver code and specyfic for this SoC
type.
Optional properties for DMC device for Exynos5422:
- interrupt-parent : The parent interrupt controller.
- interrupts : Contains the IRQ line numbers for the DMC internal performance
event counters in DREX0 and DREX1 channels. Align with specification of the
interrupt line(s) in the interrupt-parent controller.
- interrupt-names : IRQ names "drex_0" and "drex_1", the order should be the
same as in the 'interrupts' list above.
Example:
ppmu_dmc0_0: ppmu@10d00000 {
compatible = "samsung,exynos-ppmu";
reg = <0x10d00000 0x2000>;
clocks = <&clock CLK_PCLK_PPMU_DREX0_0>;
clock-names = "ppmu";
events {
ppmu_event_dmc0_0: ppmu-event3-dmc0_0 {
event-name = "ppmu-event3-dmc0_0";
};
};
};
dmc: memory-controller@10c20000 {
compatible = "samsung,exynos5422-dmc";
reg = <0x10c20000 0x10000>, <0x10c30000 0x10000>;
clocks = <&clock CLK_FOUT_SPLL>,
<&clock CLK_MOUT_SCLK_SPLL>,
<&clock CLK_FF_DOUT_SPLL2>,
<&clock CLK_FOUT_BPLL>,
<&clock CLK_MOUT_BPLL>,
<&clock CLK_SCLK_BPLL>,
<&clock CLK_MOUT_MX_MSPLL_CCORE>,
<&clock CLK_MOUT_MCLK_CDREX>;
clock-names = "fout_spll",
"mout_sclk_spll",
"ff_dout_spll2",
"fout_bpll",
"mout_bpll",
"sclk_bpll",
"mout_mx_mspll_ccore",
"mout_mclk_cdrex";
operating-points-v2 = <&dmc_opp_table>;
devfreq-events = <&ppmu_event3_dmc0_0>, <&ppmu_event3_dmc0_1>,
<&ppmu_event3_dmc1_0>, <&ppmu_event3_dmc1_1>;
device-handle = <&samsung_K3QF2F20DB>;
vdd-supply = <&buck1_reg>;
samsung,syscon-clk = <&clock>;
interrupt-parent = <&combiner>;
interrupts = <16 0>, <16 1>;
interrupt-names = "drex_0", "drex_1";
};

152
Documentation/devicetree/bindings/memory-controllers/nvidia,tegra124-mc.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0)
%YAML 1.2
---
$id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra124-mc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra124 SoC Memory Controller
maintainers:
- Jon Hunter <jonathanh@nvidia.com>
- Thierry Reding <thierry.reding@gmail.com>
description: |
Tegra124 SoC features a hybrid 2x32-bit / 1x64-bit memory controller.
These are interleaved to provide high performance with the load shared across
two memory channels. The Tegra124 Memory Controller handles memory requests
from internal clients and arbitrates among them to allocate memory bandwidth
for DDR3L and LPDDR3 SDRAMs.
properties:
compatible:
const: nvidia,tegra124-mc
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: mc
interrupts:
maxItems: 1
"#reset-cells":
const: 1
"#iommu-cells":
const: 1
patternProperties:
"^emc-timings-[0-9]+$":
type: object
properties:
nvidia,ram-code:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Value of RAM_CODE this timing set is used for.
patternProperties:
"^timing-[0-9]+$":
type: object
properties:
clock-frequency:
description:
Memory clock rate in Hz.
minimum: 1000000
maximum: 1066000000
nvidia,emem-configuration:
$ref: /schemas/types.yaml#/definitions/uint32-array
description: |
Values to be written to the EMEM register block. See section
"15.6.1 MC Registers" in the TRM.
items:
- description: MC_EMEM_ARB_CFG
- description: MC_EMEM_ARB_OUTSTANDING_REQ
- description: MC_EMEM_ARB_TIMING_RCD
- description: MC_EMEM_ARB_TIMING_RP
- description: MC_EMEM_ARB_TIMING_RC
- description: MC_EMEM_ARB_TIMING_RAS
- description: MC_EMEM_ARB_TIMING_FAW
- description: MC_EMEM_ARB_TIMING_RRD
- description: MC_EMEM_ARB_TIMING_RAP2PRE
- description: MC_EMEM_ARB_TIMING_WAP2PRE
- description: MC_EMEM_ARB_TIMING_R2R
- description: MC_EMEM_ARB_TIMING_W2W
- description: MC_EMEM_ARB_TIMING_R2W
- description: MC_EMEM_ARB_TIMING_W2R
- description: MC_EMEM_ARB_DA_TURNS
- description: MC_EMEM_ARB_DA_COVERS
- description: MC_EMEM_ARB_MISC0
- description: MC_EMEM_ARB_MISC1
- description: MC_EMEM_ARB_RING1_THROTTLE
required:
- clock-frequency
- nvidia,emem-configuration
additionalProperties: false
required:
- nvidia,ram-code
additionalProperties: false
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- "#reset-cells"
- "#iommu-cells"
additionalProperties: false
examples:
- |
memory-controller@70019000 {
compatible = "nvidia,tegra124-mc";
reg = <0x0 0x70019000 0x0 0x1000>;
clocks = <&tegra_car 32>;
clock-names = "mc";
interrupts = <0 77 4>;
#iommu-cells = <1>;
#reset-cells = <1>;
emc-timings-3 {
nvidia,ram-code = <3>;
timing-12750000 {
clock-frequency = <12750000>;
nvidia,emem-configuration = <
0x40040001 /* MC_EMEM_ARB_CFG */
0x8000000a /* MC_EMEM_ARB_OUTSTANDING_REQ */
0x00000001 /* MC_EMEM_ARB_TIMING_RCD */
0x00000001 /* MC_EMEM_ARB_TIMING_RP */
0x00000002 /* MC_EMEM_ARB_TIMING_RC */
0x00000000 /* MC_EMEM_ARB_TIMING_RAS */
0x00000002 /* MC_EMEM_ARB_TIMING_FAW */
0x00000001 /* MC_EMEM_ARB_TIMING_RRD */
0x00000002 /* MC_EMEM_ARB_TIMING_RAP2PRE */
0x00000008 /* MC_EMEM_ARB_TIMING_WAP2PRE */
0x00000003 /* MC_EMEM_ARB_TIMING_R2R */
0x00000002 /* MC_EMEM_ARB_TIMING_W2W */
0x00000003 /* MC_EMEM_ARB_TIMING_R2W */
0x00000006 /* MC_EMEM_ARB_TIMING_W2R */
0x06030203 /* MC_EMEM_ARB_DA_TURNS */
0x000a0402 /* MC_EMEM_ARB_DA_COVERS */
0x77e30303 /* MC_EMEM_ARB_MISC0 */
0x70000f03 /* MC_EMEM_ARB_MISC1 */
0x001f0000 /* MC_EMEM_ARB_RING1_THROTTLE */
>;
};
};
};

336
Documentation/devicetree/bindings/memory-controllers/nvidia,tegra30-emc.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0)
%YAML 1.2
---
$id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra30-emc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra30 SoC External Memory Controller
maintainers:
- Dmitry Osipenko <digetx@gmail.com>
- Jon Hunter <jonathanh@nvidia.com>
- Thierry Reding <thierry.reding@gmail.com>
description: |
The EMC interfaces with the off-chip SDRAM to service the request stream
sent from Memory Controller. The EMC also has various performance-affecting
settings beyond the obvious SDRAM configuration parameters and initialization
settings. Tegra30 EMC supports multiple JEDEC standard protocols: LPDDR2,
LPDDR3, and DDR3.
properties:
compatible:
const: nvidia,tegra30-emc
reg:
maxItems: 1
clocks:
maxItems: 1
interrupts:
maxItems: 1
nvidia,memory-controller:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle of the Memory Controller node.
patternProperties:
"^emc-timings-[0-9]+$":
type: object
properties:
nvidia,ram-code:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Value of RAM_CODE this timing set is used for.
patternProperties:
"^timing-[0-9]+$":
type: object
properties:
clock-frequency:
description:
Memory clock rate in Hz.
minimum: 1000000
maximum: 900000000
nvidia,emc-auto-cal-interval:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Pad calibration interval in microseconds.
minimum: 0
maximum: 2097151
nvidia,emc-mode-1:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Mode Register 1.
nvidia,emc-mode-2:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Mode Register 2.
nvidia,emc-mode-reset:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Mode Register 0.
nvidia,emc-zcal-cnt-long:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Number of EMC clocks to wait before issuing any commands after
sending ZCAL_MRW_CMD.
minimum: 0
maximum: 1023
nvidia,emc-cfg-dyn-self-ref:
type: boolean
description:
Dynamic self-refresh enabled.
nvidia,emc-cfg-periodic-qrst:
type: boolean
description:
FBIO "read" FIFO periodic resetting enabled.
nvidia,emc-configuration:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
EMC timing characterization data. These are the registers
(see section "18.13.2 EMC Registers" in the TRM) whose values
need to be specified, according to the board documentation.
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_QUSE
- description: EMC_QRST
- description: EMC_QSAFE
- description: EMC_RDV
- 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_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_XM2DQSPADCTRL2
- description: EMC_XM2DQPADCTRL2
- description: EMC_XM2CLKPADCTRL
- description: EMC_XM2COMPPADCTRL
- description: EMC_XM2VTTGENPADCTRL
- description: EMC_XM2VTTGENPADCTRL2
- description: EMC_XM2QUSEPADCTRL
- description: EMC_XM2DQSPADCTRL3
- description: EMC_CTT_TERM_CTRL
- description: EMC_ZCAL_INTERVAL
- description: EMC_ZCAL_WAIT_CNT
- description: EMC_MRS_WAIT_CNT
- description: EMC_AUTO_CAL_CONFIG
- description: EMC_CTT
- description: EMC_CTT_DURATION
- description: EMC_DYN_SELF_REF_CONTROL
- description: EMC_FBIO_SPARE
- description: EMC_CFG_RSV
required:
- clock-frequency
- nvidia,emc-auto-cal-interval
- nvidia,emc-mode-1
- nvidia,emc-mode-2
- nvidia,emc-mode-reset
- nvidia,emc-zcal-cnt-long
- nvidia,emc-configuration
additionalProperties: false
required:
- nvidia,ram-code
additionalProperties: false
required:
- compatible
- reg
- interrupts
- clocks
- nvidia,memory-controller
additionalProperties: false
examples:
- |
external-memory-controller@7000f400 {
compatible = "nvidia,tegra30-emc";
reg = <0x7000f400 0x400>;
interrupts = <0 78 4>;
clocks = <&tegra_car 57>;
nvidia,memory-controller = <&mc>;
emc-timings-1 {
nvidia,ram-code = <1>;
timing-667000000 {
clock-frequency = <667000000>;
nvidia,emc-auto-cal-interval = <0x001fffff>;
nvidia,emc-mode-1 = <0x80100002>;
nvidia,emc-mode-2 = <0x80200018>;
nvidia,emc-mode-reset = <0x80000b71>;
nvidia,emc-zcal-cnt-long = <0x00000040>;
nvidia,emc-cfg-periodic-qrst;
nvidia,emc-configuration = <
0x00000020 /* EMC_RC */
0x0000006a /* EMC_RFC */
0x00000017 /* EMC_RAS */
0x00000007 /* EMC_RP */
0x00000005 /* EMC_R2W */
0x0000000c /* EMC_W2R */
0x00000003 /* EMC_R2P */
0x00000011 /* EMC_W2P */
0x00000007 /* EMC_RD_RCD */
0x00000007 /* EMC_WR_RCD */
0x00000002 /* EMC_RRD */
0x00000001 /* EMC_REXT */
0x00000000 /* EMC_WEXT */
0x00000007 /* EMC_WDV */
0x0000000a /* EMC_QUSE */
0x00000009 /* EMC_QRST */
0x0000000b /* EMC_QSAFE */
0x00000011 /* EMC_RDV */
0x00001412 /* EMC_REFRESH */
0x00000000 /* EMC_BURST_REFRESH_NUM */
0x00000504 /* EMC_PRE_REFRESH_REQ_CNT */
0x00000002 /* EMC_PDEX2WR */
0x0000000e /* EMC_PDEX2RD */
0x00000001 /* EMC_PCHG2PDEN */
0x00000000 /* EMC_ACT2PDEN */
0x0000000c /* EMC_AR2PDEN */
0x00000016 /* EMC_RW2PDEN */
0x00000072 /* EMC_TXSR */
0x00000200 /* EMC_TXSRDLL */
0x00000005 /* EMC_TCKE */
0x00000015 /* EMC_TFAW */
0x00000000 /* EMC_TRPAB */
0x00000006 /* EMC_TCLKSTABLE */
0x00000007 /* EMC_TCLKSTOP */
0x00001453 /* EMC_TREFBW */
0x0000000b /* EMC_QUSE_EXTRA */
0x00000006 /* EMC_FBIO_CFG6 */
0x00000000 /* EMC_ODT_WRITE */
0x00000000 /* EMC_ODT_READ */
0x00005088 /* EMC_FBIO_CFG5 */
0xf00b0191 /* EMC_CFG_DIG_DLL */
0x00008000 /* EMC_CFG_DIG_DLL_PERIOD */
0x00000008 /* EMC_DLL_XFORM_DQS0 */
0x00000008 /* EMC_DLL_XFORM_DQS1 */
0x00000008 /* EMC_DLL_XFORM_DQS2 */
0x00000008 /* EMC_DLL_XFORM_DQS3 */
0x0000000a /* EMC_DLL_XFORM_DQS4 */
0x0000000a /* EMC_DLL_XFORM_DQS5 */
0x0000000a /* EMC_DLL_XFORM_DQS6 */
0x0000000a /* EMC_DLL_XFORM_DQS7 */
0x00018000 /* EMC_DLL_XFORM_QUSE0 */
0x00018000 /* EMC_DLL_XFORM_QUSE1 */
0x00018000 /* EMC_DLL_XFORM_QUSE2 */
0x00018000 /* 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 */
0x0000000a /* EMC_DLL_XFORM_DQ0 */
0x0000000a /* EMC_DLL_XFORM_DQ1 */
0x0000000a /* EMC_DLL_XFORM_DQ2 */
0x0000000a /* EMC_DLL_XFORM_DQ3 */
0x000002a0 /* EMC_XM2CMDPADCTRL */
0x0800013d /* EMC_XM2DQSPADCTRL2 */
0x22220000 /* EMC_XM2DQPADCTRL2 */
0x77fff884 /* EMC_XM2CLKPADCTRL */
0x01f1f501 /* EMC_XM2COMPPADCTRL */
0x07077404 /* EMC_XM2VTTGENPADCTRL */
0x54000000 /* EMC_XM2VTTGENPADCTRL2 */
0x080001e8 /* EMC_XM2QUSEPADCTRL */
0x0c000021 /* EMC_XM2DQSPADCTRL3 */
0x00000802 /* EMC_CTT_TERM_CTRL */
0x00020000 /* EMC_ZCAL_INTERVAL */
0x00000100 /* EMC_ZCAL_WAIT_CNT */
0x0155000c /* EMC_MRS_WAIT_CNT */
0xa0f10000 /* EMC_AUTO_CAL_CONFIG */
0x00000000 /* EMC_CTT */
0x00000000 /* EMC_CTT_DURATION */
0x800028a5 /* EMC_DYN_SELF_REF_CONTROL */
0xe8000000 /* EMC_FBIO_SPARE */
0xff00ff49 /* EMC_CFG_RSV */
>;
};
};
};

123
Documentation/devicetree/bindings/memory-controllers/nvidia,tegra30-mc.txt
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@@ -1,123 +0,0 @@
NVIDIA Tegra Memory Controller device tree bindings
===================================================
memory-controller node
----------------------
Required properties:
- compatible: Should be "nvidia,tegra<chip>-mc"
- reg: Physical base address and length of the controller's registers.
- clocks: Must contain an entry for each entry in clock-names.
See ../clocks/clock-bindings.txt for details.
- clock-names: Must include the following entries:
- mc: the module's clock input
- interrupts: The interrupt outputs from the controller.
- #reset-cells : Should be 1. This cell represents memory client module ID.
The assignments may be found in header file <dt-bindings/memory/tegra30-mc.h>
or in the TRM documentation.
Required properties for Tegra30, Tegra114, Tegra124, Tegra132 and Tegra210:
- #iommu-cells: Should be 1. The single cell of the IOMMU specifier defines
the SWGROUP of the master.
This device implements an IOMMU that complies with the generic IOMMU binding.
See ../iommu/iommu.txt for details.
emc-timings subnode
-------------------
The node should contain a "emc-timings" subnode for each supported RAM type (see field RAM_CODE in
register PMC_STRAPPING_OPT_A).
Required properties for "emc-timings" nodes :
- nvidia,ram-code : Should contain the value of RAM_CODE this timing set is used for.
timing subnode
--------------
Each "emc-timings" node should contain a subnode for every supported EMC clock rate.
Required properties for timing nodes :
- clock-frequency : Should contain the memory clock rate in Hz.
- nvidia,emem-configuration : Values to be written to the EMEM register block. For the Tegra124 SoC
(see section "15.6.1 MC Registers" in the TRM), these are the registers whose values need to be
specified, according to the board documentation:
MC_EMEM_ARB_CFG
MC_EMEM_ARB_OUTSTANDING_REQ
MC_EMEM_ARB_TIMING_RCD
MC_EMEM_ARB_TIMING_RP
MC_EMEM_ARB_TIMING_RC
MC_EMEM_ARB_TIMING_RAS
MC_EMEM_ARB_TIMING_FAW
MC_EMEM_ARB_TIMING_RRD
MC_EMEM_ARB_TIMING_RAP2PRE
MC_EMEM_ARB_TIMING_WAP2PRE
MC_EMEM_ARB_TIMING_R2R
MC_EMEM_ARB_TIMING_W2W
MC_EMEM_ARB_TIMING_R2W
MC_EMEM_ARB_TIMING_W2R
MC_EMEM_ARB_DA_TURNS
MC_EMEM_ARB_DA_COVERS
MC_EMEM_ARB_MISC0
MC_EMEM_ARB_MISC1
MC_EMEM_ARB_RING1_THROTTLE
Example SoC include file:
/ {
mc: memory-controller@70019000 {
compatible = "nvidia,tegra124-mc";
reg = <0x0 0x70019000 0x0 0x1000>;
clocks = <&tegra_car TEGRA124_CLK_MC>;
clock-names = "mc";
interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
#iommu-cells = <1>;
#reset-cells = <1>;
};
sdhci@700b0000 {
compatible = "nvidia,tegra124-sdhci";
...
iommus = <&mc TEGRA_SWGROUP_SDMMC1A>;
resets = <&mc TEGRA124_MC_RESET_SDMMC1>;
};
};
Example board file:
/ {
memory-controller@70019000 {
emc-timings-3 {
nvidia,ram-code = <3>;
timing-12750000 {
clock-frequency = <12750000>;
nvidia,emem-configuration = <
0x40040001 /* MC_EMEM_ARB_CFG */
0x8000000a /* MC_EMEM_ARB_OUTSTANDING_REQ */
0x00000001 /* MC_EMEM_ARB_TIMING_RCD */
0x00000001 /* MC_EMEM_ARB_TIMING_RP */
0x00000002 /* MC_EMEM_ARB_TIMING_RC */
0x00000000 /* MC_EMEM_ARB_TIMING_RAS */
0x00000002 /* MC_EMEM_ARB_TIMING_FAW */
0x00000001 /* MC_EMEM_ARB_TIMING_RRD */
0x00000002 /* MC_EMEM_ARB_TIMING_RAP2PRE */
0x00000008 /* MC_EMEM_ARB_TIMING_WAP2PRE */
0x00000003 /* MC_EMEM_ARB_TIMING_R2R */
0x00000002 /* MC_EMEM_ARB_TIMING_W2W */
0x00000003 /* MC_EMEM_ARB_TIMING_R2W */
0x00000006 /* MC_EMEM_ARB_TIMING_W2R */
0x06030203 /* MC_EMEM_ARB_DA_TURNS */
0x000a0402 /* MC_EMEM_ARB_DA_COVERS */
0x77e30303 /* MC_EMEM_ARB_MISC0 */
0x70000f03 /* MC_EMEM_ARB_MISC1 */
0x001f0000 /* MC_EMEM_ARB_RING1_THROTTLE */
>;
};
};
};
};

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@@ -0,0 +1,167 @@
# SPDX-License-Identifier: (GPL-2.0)
%YAML 1.2
---
$id: http://devicetree.org/schemas/memory-controllers/nvidia,tegra30-mc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra30 SoC Memory Controller
maintainers:
- Dmitry Osipenko <digetx@gmail.com>
- Jon Hunter <jonathanh@nvidia.com>
- Thierry Reding <thierry.reding@gmail.com>
description: |
Tegra30 Memory Controller architecturally consists of the following parts:
Arbitration Domains, which can handle a single request or response per
clock from a group of clients. Typically, a system has a single Arbitration
Domain, but an implementation may divide the client space into multiple
Arbitration Domains to increase the effective system bandwidth.
Protocol Arbiter, which manage a related pool of memory devices. A system
may have a single Protocol Arbiter or multiple Protocol Arbiters.
Memory Crossbar, which routes request and responses between Arbitration
Domains and Protocol Arbiters. In the simplest version of the system, the
Memory Crossbar is just a pass through between a single Arbitration Domain
and a single Protocol Arbiter.
Global Resources, which include things like configuration registers which
are shared across the Memory Subsystem.
The Tegra30 Memory Controller handles memory requests from internal clients
and arbitrates among them to allocate memory bandwidth for DDR3L and LPDDR2
SDRAMs.
properties:
compatible:
const: nvidia,tegra30-mc
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: mc
interrupts:
maxItems: 1
"#reset-cells":
const: 1
"#iommu-cells":
const: 1
patternProperties:
"^emc-timings-[0-9]+$":
type: object
properties:
nvidia,ram-code:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Value of RAM_CODE this timing set is used for.
patternProperties:
"^timing-[0-9]+$":
type: object
properties:
clock-frequency:
description:
Memory clock rate in Hz.
minimum: 1000000
maximum: 900000000
nvidia,emem-configuration:
$ref: /schemas/types.yaml#/definitions/uint32-array
description: |
Values to be written to the EMEM register block. See section
"18.13.1 MC Registers" in the TRM.
items:
- description: MC_EMEM_ARB_CFG
- description: MC_EMEM_ARB_OUTSTANDING_REQ
- description: MC_EMEM_ARB_TIMING_RCD
- description: MC_EMEM_ARB_TIMING_RP
- description: MC_EMEM_ARB_TIMING_RC
- description: MC_EMEM_ARB_TIMING_RAS
- description: MC_EMEM_ARB_TIMING_FAW
- description: MC_EMEM_ARB_TIMING_RRD
- description: MC_EMEM_ARB_TIMING_RAP2PRE
- description: MC_EMEM_ARB_TIMING_WAP2PRE
- description: MC_EMEM_ARB_TIMING_R2R
- description: MC_EMEM_ARB_TIMING_W2W
- description: MC_EMEM_ARB_TIMING_R2W
- description: MC_EMEM_ARB_TIMING_W2R
- description: MC_EMEM_ARB_DA_TURNS
- description: MC_EMEM_ARB_DA_COVERS
- description: MC_EMEM_ARB_MISC0
- description: MC_EMEM_ARB_RING1_THROTTLE
required:
- clock-frequency
- nvidia,emem-configuration
additionalProperties: false
required:
- nvidia,ram-code
additionalProperties: false
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- "#reset-cells"
- "#iommu-cells"
additionalProperties: false
examples:
- |
memory-controller@7000f000 {
compatible = "nvidia,tegra30-mc";
reg = <0x7000f000 0x400>;
clocks = <&tegra_car 32>;
clock-names = "mc";
interrupts = <0 77 4>;
#iommu-cells = <1>;
#reset-cells = <1>;
emc-timings-1 {
nvidia,ram-code = <1>;
timing-667000000 {
clock-frequency = <667000000>;
nvidia,emem-configuration = <
0x0000000a /* MC_EMEM_ARB_CFG */
0xc0000079 /* MC_EMEM_ARB_OUTSTANDING_REQ */
0x00000003 /* MC_EMEM_ARB_TIMING_RCD */
0x00000004 /* MC_EMEM_ARB_TIMING_RP */
0x00000010 /* MC_EMEM_ARB_TIMING_RC */
0x0000000b /* MC_EMEM_ARB_TIMING_RAS */
0x0000000a /* MC_EMEM_ARB_TIMING_FAW */
0x00000001 /* MC_EMEM_ARB_TIMING_RRD */
0x00000003 /* MC_EMEM_ARB_TIMING_RAP2PRE */
0x0000000b /* MC_EMEM_ARB_TIMING_WAP2PRE */
0x00000002 /* MC_EMEM_ARB_TIMING_R2R */
0x00000002 /* MC_EMEM_ARB_TIMING_W2W */
0x00000004 /* MC_EMEM_ARB_TIMING_R2W */
0x00000008 /* MC_EMEM_ARB_TIMING_W2R */
0x08040202 /* MC_EMEM_ARB_DA_TURNS */
0x00130b10 /* MC_EMEM_ARB_DA_COVERS */
0x70ea1f11 /* MC_EMEM_ARB_MISC0 */
0x001f0000 /* MC_EMEM_ARB_RING1_THROTTLE */
>;
};
};
};