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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2018-01-02 15:55:57 +0100
committerGregory CLEMENT <gregory.clement@free-electrons.com>2018-01-05 17:02:41 +0100
commit72a3713fadfd5ff41010c7089c53b02aa19e57cd (patch)
treebcc0ceb6462d8060b971cf1fdb95f8afecd31e7d /arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
parente2a393c699816de2e44cb5988895c1aeb84944cf (diff)
downloadtalos-obmc-linux-72a3713fadfd5ff41010c7089c53b02aa19e57cd.tar.gz
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arm64: dts: marvell: de-duplicate CP110 description
One concept of Marvell Armada 7K/8K SoCs is that they are made of HW blocks composed of a variety of IPs (network, PCIe, SATA, XOR, SPI, I2C, etc.), and those HW blocks can be duplicated several times within a given SoC. The Armada 7K SoC has a single CP110 (so no duplication), while the Armada 8K SoC has two CP110. In the future, SoCs with more than 2 CP110s will be introduced. In current kernel versions, the master CP110 is described in armada-cp110-master.dtsi and the slave CP110 is described in armada-cp110-slave.dtsi. Those files are basically exactly the same, since they describe the same hardware. They only have a few differences: - Base address of the registers is different for the "config-space" - Base address of the PCIe registers, MEM, CONF and IO areas were different - Labels (and phandles pointing to them) of the nodes were different ("cpm" prefix in the master CP, "cps" prefix in the slave CP) This duplication issue has been discussed at the DT workshop [1] in Prague last October, and we presented on this topic [2]. The solution of using the C pre-processor to avoid this duplication has been validated by the people present in this DT workshop, and this patch simply implements what has been presented. We handle differences between the master CP and slave CP description using the C pre-processor, by defining a set of macros with different values armada-cp110.dtsi is included to instantiate one of the master or slave CP110. There are a few aspects that deserve additional explanations: - PCIe needs to be handled separately because it is not part of the config-space {...} node, since it has registers outside of the range covered by config-space {...}. - We need to defined CP110_BASE, CP110_PCIEx_BASE without 0x, because they are used for the unit address part of some DT nodes. But since they are also used for the "reg" property of the same nodes, we have an ADDRESSIFY() macro that prepends 0x to those values. We compared the resulting .dtb for armada-8040-db.dtb before and after this patch is applied, and the result is exactly the same, except for a few differences: - the SDHCI controller that was only described in the master CP110 is now also described in the slave CP110. Even though the SDHCI controller from the slave CP110 is indeed not usable (as it isn't wired to the outside world) it is technically part of the silicon, and therefore it is reasonable to also describe it to be part of the slave CP110. In addition, if we wanted to get this correct for the SDHCI controller, we should also do it for the NAND controller, for which the situation is even more complicated: in a single CP110 configuration (Armada 7K), the usable NAND controller is in the master CP110, while in a dual CP110 configuration (Armada 8K), the usable NAND controller is in the slave CP110. Since that would add a lot of additional complexity for no good reason, and since the IP blocks are in fact really present in both CPs, we simply describe them in both CPs at the DT level. - the cp110-master and cp110-slave nodes are now named cpm and cps. We could have kept cp110-master and cp110-slave, but that would have required adding another CP110_xyz define, which didn't seem very useful. Note that this commit also gets rid of the armada-cp110-master.dtsi and armada-cp110-slave.dtsi files, as future SoCs will have more than 2 CPs. Instead, we instantiate the CPs directly from the SoC-specific .dtsi files, i.e armada-70x0.dtsi and armada-80x0.dtsi. [1] https://elinux.org/Device_tree_kernel_summit_2017_etherpad [2] https://elinux.org/images/1/14/DTWorkshop2017-duplicate-data.pdf [gregory.clement@free-electrons.com: add back the "ARM64: dts: marvell: Fix clock resources for various node" commit] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Diffstat (limited to 'arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi')
-rw-r--r--arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi449
1 files changed, 0 insertions, 449 deletions
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
deleted file mode 100644
index 97a8a6e3533e..000000000000
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * Copyright (C) 2016 Marvell Technology Group Ltd.
- *
- * This file is dual-licensed: you can use it either under the terms
- * of the GPLv2 or the X11 license, at your option. Note that this dual
- * licensing only applies to this file, and not this project as a
- * whole.
- *
- * a) This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Or, alternatively,
- *
- * b) Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * Device Tree file for Marvell Armada CP110 Slave.
- */
-
-#include <dt-bindings/interrupt-controller/mvebu-icu.h>
-
-/ {
- cp110-slave {
- #address-cells = <2>;
- #size-cells = <2>;
- compatible = "simple-bus";
- interrupt-parent = <&cps_icu>;
- ranges;
-
- config-space@f4000000 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "simple-bus";
- ranges = <0x0 0x0 0xf4000000 0x2000000>;
-
- cps_ethernet: ethernet@0 {
- compatible = "marvell,armada-7k-pp22";
- reg = <0x0 0x100000>, <0x129000 0xb000>;
- clocks = <&cps_clk 1 3>, <&cps_clk 1 9>,
- <&cps_clk 1 5>, <&cps_clk 1 18>;
- clock-names = "pp_clk", "gop_clk",
- "mg_clk", "axi_clk";
- marvell,system-controller = <&cps_syscon0>;
- status = "disabled";
- dma-coherent;
-
- cps_eth0: eth0 {
- interrupts = <ICU_GRP_NSR 39 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 43 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 47 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 51 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 55 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 129 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
- "tx-cpu3", "rx-shared", "link";
- port-id = <0>;
- gop-port-id = <0>;
- status = "disabled";
- };
-
- cps_eth1: eth1 {
- interrupts = <ICU_GRP_NSR 40 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 44 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 48 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 52 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 56 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 128 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
- "tx-cpu3", "rx-shared", "link";
- port-id = <1>;
- gop-port-id = <2>;
- status = "disabled";
- };
-
- cps_eth2: eth2 {
- interrupts = <ICU_GRP_NSR 41 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 45 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 49 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 53 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 57 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 127 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "tx-cpu0", "tx-cpu1", "tx-cpu2",
- "tx-cpu3", "rx-shared", "link";
- port-id = <2>;
- gop-port-id = <3>;
- status = "disabled";
- };
- };
-
- cps_comphy: phy@120000 {
- compatible = "marvell,comphy-cp110";
- reg = <0x120000 0x6000>;
- marvell,system-controller = <&cps_syscon0>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- cps_comphy0: phy@0 {
- reg = <0>;
- #phy-cells = <1>;
- };
-
- cps_comphy1: phy@1 {
- reg = <1>;
- #phy-cells = <1>;
- };
-
- cps_comphy2: phy@2 {
- reg = <2>;
- #phy-cells = <1>;
- };
-
- cps_comphy3: phy@3 {
- reg = <3>;
- #phy-cells = <1>;
- };
-
- cps_comphy4: phy@4 {
- reg = <4>;
- #phy-cells = <1>;
- };
-
- cps_comphy5: phy@5 {
- reg = <5>;
- #phy-cells = <1>;
- };
- };
-
- cps_mdio: mdio@12a200 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "marvell,orion-mdio";
- reg = <0x12a200 0x10>;
- clocks = <&cps_clk 1 9>, <&cps_clk 1 5>,
- <&cps_clk 1 6>, <&cps_clk 1 18>;
- status = "disabled";
- };
-
- cps_xmdio: mdio@12a600 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "marvell,xmdio";
- reg = <0x12a600 0x10>;
- status = "disabled";
- };
-
- cps_icu: interrupt-controller@1e0000 {
- compatible = "marvell,cp110-icu";
- reg = <0x1e0000 0x10>;
- #interrupt-cells = <3>;
- interrupt-controller;
- msi-parent = <&gicp>;
- };
-
- cps_rtc: rtc@284000 {
- compatible = "marvell,armada-8k-rtc";
- reg = <0x284000 0x20>, <0x284080 0x24>;
- reg-names = "rtc", "rtc-soc";
- interrupts = <ICU_GRP_NSR 77 IRQ_TYPE_LEVEL_HIGH>;
- };
-
- cps_thermal: thermal@400078 {
- compatible = "marvell,armada-cp110-thermal";
- reg = <0x400078 0x4>,
- <0x400070 0x8>;
- };
-
- cps_syscon0: system-controller@440000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x440000 0x2000>;
-
- cps_clk: clock {
- compatible = "marvell,cp110-clock";
- #clock-cells = <2>;
- };
-
- cps_gpio1: gpio@100 {
- compatible = "marvell,armada-8k-gpio";
- offset = <0x100>;
- ngpios = <32>;
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&cps_pinctrl 0 0 32>;
- interrupt-controller;
- interrupts = <ICU_GRP_NSR 86 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 85 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 84 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 83 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
- };
-
- cps_gpio2: gpio@140 {
- compatible = "marvell,armada-8k-gpio";
- offset = <0x140>;
- ngpios = <31>;
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&cps_pinctrl 0 32 31>;
- interrupt-controller;
- interrupts = <ICU_GRP_NSR 82 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 81 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 80 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 79 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
- };
-
- };
-
- cps_usb3_0: usb3@500000 {
- compatible = "marvell,armada-8k-xhci",
- "generic-xhci";
- reg = <0x500000 0x4000>;
- dma-coherent;
- interrupts = <ICU_GRP_NSR 106 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 22>;
- status = "disabled";
- };
-
- cps_usb3_1: usb3@510000 {
- compatible = "marvell,armada-8k-xhci",
- "generic-xhci";
- reg = <0x510000 0x4000>;
- dma-coherent;
- interrupts = <ICU_GRP_NSR 105 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 23>;
- status = "disabled";
- };
-
- cps_sata0: sata@540000 {
- compatible = "marvell,armada-8k-ahci",
- "generic-ahci";
- reg = <0x540000 0x30000>;
- interrupts = <ICU_GRP_NSR 107 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 15>;
- status = "disabled";
- };
-
- cps_xor0: xor@6a0000 {
- compatible = "marvell,armada-7k-xor", "marvell,xor-v2";
- reg = <0x6a0000 0x1000>,
- <0x6b0000 0x1000>;
- dma-coherent;
- msi-parent = <&gic_v2m0>;
- clocks = <&cps_clk 1 8>;
- };
-
- cps_xor1: xor@6c0000 {
- compatible = "marvell,armada-7k-xor", "marvell,xor-v2";
- reg = <0x6c0000 0x1000>,
- <0x6d0000 0x1000>;
- dma-coherent;
- msi-parent = <&gic_v2m0>;
- clocks = <&cps_clk 1 7>;
- };
-
- cps_spi0: spi@700600 {
- compatible = "marvell,armada-380-spi";
- reg = <0x700600 0x50>;
- #address-cells = <0x1>;
- #size-cells = <0x0>;
- clocks = <&cps_clk 1 21>;
- status = "disabled";
- };
-
- cps_spi1: spi@700680 {
- compatible = "marvell,armada-380-spi";
- reg = <0x700680 0x50>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&cps_clk 1 21>;
- status = "disabled";
- };
-
- cps_i2c0: i2c@701000 {
- compatible = "marvell,mv78230-i2c";
- reg = <0x701000 0x20>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <ICU_GRP_NSR 120 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 21>;
- status = "disabled";
- };
-
- cps_i2c1: i2c@701100 {
- compatible = "marvell,mv78230-i2c";
- reg = <0x701100 0x20>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <ICU_GRP_NSR 121 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 21>;
- status = "disabled";
- };
-
- cps_nand: nand@720000 {
- /*
- * Due to the limitation of the pins available
- * this controller is only usable on the CPM
- * for A7K and on the CPS for A8K.
- */
- compatible = "marvell,armada-8k-nand",
- "marvell,armada370-nand";
- reg = <0x720000 0x54>;
- #address-cells = <1>;
- #size-cells = <1>;
- interrupts = <ICU_GRP_NSR 115 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 2>;
- marvell,system-controller = <&cpm_syscon0>;
- status = "disabled";
- };
-
- cps_trng: trng@760000 {
- compatible = "marvell,armada-8k-rng", "inside-secure,safexcel-eip76";
- reg = <0x760000 0x7d>;
- interrupts = <ICU_GRP_NSR 95 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cps_clk 1 25>;
- status = "okay";
- };
-
- cps_crypto: crypto@800000 {
- compatible = "inside-secure,safexcel-eip197";
- reg = <0x800000 0x200000>;
- interrupts = <ICU_GRP_NSR 87 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 88 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 89 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 90 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 91 IRQ_TYPE_LEVEL_HIGH>,
- <ICU_GRP_NSR 92 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "mem", "ring0", "ring1",
- "ring2", "ring3", "eip";
- clocks = <&cps_clk 1 26>;
- dma-coherent;
- /*
- * The cryptographic engine found on the cp110
- * master is enabled by default at the SoC
- * level. Because it is not possible as of now
- * to enable two cryptographic engines in
- * parallel, disable this one by default.
- */
- status = "disabled";
- };
- };
-
- cps_pcie0: pcie@f4600000 {
- compatible = "marvell,armada8k-pcie", "snps,dw-pcie";
- reg = <0 0xf4600000 0 0x10000>,
- <0 0xfaf00000 0 0x80000>;
- reg-names = "ctrl", "config";
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- device_type = "pci";
- dma-coherent;
- msi-parent = <&gic_v2m0>;
-
- bus-range = <0 0xff>;
- ranges =
- /* downstream I/O */
- <0x81000000 0 0xfd000000 0 0xfd000000 0 0x10000
- /* non-prefetchable memory */
- 0x82000000 0 0xfa000000 0 0xfa000000 0 0xf00000>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
- num-lanes = <1>;
- clocks = <&cps_clk 1 13>;
- status = "disabled";
- };
-
- cps_pcie1: pcie@f4620000 {
- compatible = "marvell,armada8k-pcie", "snps,dw-pcie";
- reg = <0 0xf4620000 0 0x10000>,
- <0 0xfbf00000 0 0x80000>;
- reg-names = "ctrl", "config";
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- device_type = "pci";
- dma-coherent;
- msi-parent = <&gic_v2m0>;
-
- bus-range = <0 0xff>;
- ranges =
- /* downstream I/O */
- <0x81000000 0 0xfd010000 0 0xfd010000 0 0x10000
- /* non-prefetchable memory */
- 0x82000000 0 0xfb000000 0 0xfb000000 0 0xf00000>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
-
- num-lanes = <1>;
- clocks = <&cps_clk 1 11>;
- status = "disabled";
- };
-
- cps_pcie2: pcie@f4640000 {
- compatible = "marvell,armada8k-pcie", "snps,dw-pcie";
- reg = <0 0xf4640000 0 0x10000>,
- <0 0xfcf00000 0 0x80000>;
- reg-names = "ctrl", "config";
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- device_type = "pci";
- dma-coherent;
- msi-parent = <&gic_v2m0>;
-
- bus-range = <0 0xff>;
- ranges =
- /* downstream I/O */
- <0x81000000 0 0xfd020000 0 0xfd020000 0 0x10000
- /* non-prefetchable memory */
- 0x82000000 0 0xfc000000 0 0xfc000000 0 0xf00000>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
- interrupts = <ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
-
- num-lanes = <1>;
- clocks = <&cps_clk 1 12>;
- status = "disabled";
- };
- };
-};
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