mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-01 22:54:01 +00:00
Merge branch 'sunplus/newsoc' into arm/newsoc
Merge "Sunplus SP7021 SoC support" from Qin Jian, applied as patches: "Sunplus SP7021 is an ARM Cortex A7 (4 cores) based SoC. It integrates many peripherals (ex: UART, I2C, SPI, SDIO, eMMC, USB, SD card and etc.) into a single chip. It is designed for industrial control. SP7021 consists of two chips (dies) in a package. One is called C-chip (computing chip). It is a 4-core ARM Cortex A7 CPU. It adopts high-level process (22 nm) for high performance computing. The other is called P- chip (peripheral chip). It has many peripherals and an ARM A926 added especially for real-time control. P-chip is made for customers. It adopts low-level process (ex: 0.11 um) to reduce cost. Refer to (for documentations): https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview Refer to (applications): https://tibbo.com/store/plus1.html Refer to (applications): http://www.sinovoip.com.cn/ecp_view.asp?id=586" I left out the clock controller driver, which is still not fully reviewed. There have been 20 revisions of the platform code, and everything else looks good enough, so I hope it's we can simplify the process by separating it out again. Link: https://lore.kernel.org/linux-arm-kernel/0c10fa4ccf3da5d92784b9bbd4177d1d2f1d62a0.1656396767.git.qinjian@cqplus1.com/ * sunplus/newsoc: ARM: dts: Add Sunplus SP7021-Demo-V3 board device tree ARM: sp7021_defconfig: Add Sunplus SP7021 defconfig ARM: sunplus: Add initial support for Sunplus SP7021 SoC irqchip: Add Sunplus SP7021 interrupt controller driver dt-bindings: interrupt-controller: Add bindings for SP7021 interrupt controller dt-bindings: clock: Add bindings for SP7021 clock driver reset: Add Sunplus SP7021 reset driver dt-bindings: reset: Add bindings for SP7021 reset driver dt-bindings: arm: sunplus: Add bindings for Sunplus SP7021 SoC boards
This commit is contained in:
Arnd Bergmann
commit
7cb7b8fe63
24 changed files with 1423 additions and 0 deletions
29
Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
Normal file
29
Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
Normal file
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|
@ -0,0 +1,29 @@
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|||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (C) Sunplus Co., Ltd. 2021
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/arm/sunplus,sp7021.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Sunplus SP7021 Boards
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maintainers:
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- qinjian <qinjian@cqplus1.com>
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description: |
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ARM platforms using Sunplus SP7021, an ARM Cortex A7 (4-cores) based SoC.
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Wiki: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
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properties:
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$nodename:
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const: '/'
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compatible:
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items:
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- enum:
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- sunplus,sp7021-achip
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- sunplus,sp7021-demo-v3
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- const: sunplus,sp7021
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additionalProperties: true
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...
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@ -0,0 +1,52 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (C) Sunplus Co., Ltd. 2021
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/clock/sunplus,sp7021-clkc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Sunplus SP7021 SoC Clock Controller
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maintainers:
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- Qin Jian <qinjian@cqplus1.com>
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properties:
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compatible:
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const: sunplus,sp7021-clkc
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reg:
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maxItems: 3
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clocks:
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maxItems: 1
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"#clock-cells":
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const: 1
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required:
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- compatible
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- reg
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- clocks
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- "#clock-cells"
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additionalProperties: false
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examples:
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- |
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extclk: osc0 {
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <27000000>;
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clock-output-names = "extclk";
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};
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clkc: clock-controller@9c000004 {
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compatible = "sunplus,sp7021-clkc";
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reg = <0x9c000004 0x28>,
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<0x9c000200 0x44>,
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<0x9c000268 0x08>;
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clocks = <&extclk>;
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#clock-cells = <1>;
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};
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...
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@ -0,0 +1,62 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (C) Sunplus Co., Ltd. 2021
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/interrupt-controller/sunplus,sp7021-intc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Sunplus SP7021 SoC Interrupt Controller
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maintainers:
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- Qin Jian <qinjian@cqplus1.com>
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properties:
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compatible:
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items:
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- const: sunplus,sp7021-intc
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reg:
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maxItems: 2
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description:
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Specifies base physical address(s) and size of the controller regs.
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The 1st region include type/polarity/priority/mask regs.
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The 2nd region include clear/masked_ext0/masked_ext1/group regs.
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interrupt-controller: true
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"#interrupt-cells":
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const: 2
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description:
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The first cell is the IRQ number, the second cell is the trigger
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type as defined in interrupt.txt in this directory.
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|
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interrupts:
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maxItems: 2
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description:
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EXT_INT0 & EXT_INT1, 2 interrupts references to primary interrupt
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controller.
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|
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required:
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- compatible
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- reg
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- interrupt-controller
|
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- "#interrupt-cells"
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- interrupts
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|
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additionalProperties: false
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|
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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intc: interrupt-controller@9c000780 {
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compatible = "sunplus,sp7021-intc";
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reg = <0x9c000780 0x80>, <0x9c000a80 0x80>;
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interrupt-controller;
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#interrupt-cells = <2>;
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interrupt-parent = <&gic>;
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interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>, /* EXT_INT0 */
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<GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>; /* EXT_INT1 */
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};
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|
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...
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38
Documentation/devicetree/bindings/reset/sunplus,reset.yaml
Normal file
38
Documentation/devicetree/bindings/reset/sunplus,reset.yaml
Normal file
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@ -0,0 +1,38 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright (C) Sunplus Co., Ltd. 2021
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/reset/sunplus,reset.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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|
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title: Sunplus SoC Reset Controller
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|
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maintainers:
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- Qin Jian <qinjian@cqplus1.com>
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|
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properties:
|
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compatible:
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const: sunplus,sp7021-reset
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|
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reg:
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maxItems: 1
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|
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"#reset-cells":
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const: 1
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|
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required:
|
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- compatible
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- reg
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- "#reset-cells"
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|
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additionalProperties: false
|
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|
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examples:
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- |
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rstc: reset@9c000054 {
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compatible = "sunplus,sp7021-reset";
|
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reg = <0x9c000054 0x28>;
|
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#reset-cells = <1>;
|
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};
|
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...
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17
MAINTAINERS
17
MAINTAINERS
|
|
@ -2825,6 +2825,23 @@ F: drivers/clocksource/armv7m_systick.c
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N: stm32
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N: stm
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|
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ARM/SUNPLUS SP7021 SOC SUPPORT
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M: Qin Jian <qinjian@cqplus1.com>
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L: linux-arm-kernel@lists.infradead.org (moderated for mon-subscribers)
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S: Maintained
|
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W: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
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F: Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
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F: Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml
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||||
F: Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
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||||
F: Documentation/devicetree/bindings/reset/sunplus,reset.yaml
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F: arch/arm/boot/dts/sunplus-sp7021*.dts*
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F: arch/arm/configs/sp7021_*defconfig
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||||
F: arch/arm/mach-sunplus/
|
||||
F: drivers/irqchip/irq-sp7021-intc.c
|
||||
F: drivers/reset/reset-sunplus.c
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||||
F: include/dt-bindings/clock/sunplus,sp7021-clkc.h
|
||||
F: include/dt-bindings/reset/sunplus,sp7021-reset.h
|
||||
|
||||
ARM/Synaptics SoC support
|
||||
M: Jisheng Zhang <jszhang@kernel.org>
|
||||
M: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
|
||||
|
|
|
|||
|
|
@ -588,6 +588,8 @@ source "arch/arm/mach-sti/Kconfig"
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|||
|
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source "arch/arm/mach-stm32/Kconfig"
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|
||||
source "arch/arm/mach-sunplus/Kconfig"
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source "arch/arm/mach-sunxi/Kconfig"
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source "arch/arm/mach-tegra/Kconfig"
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||||
|
|
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|||
|
|
@ -215,6 +215,7 @@ machine-$(CONFIG_ARCH_RENESAS) += shmobile
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machine-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga
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machine-$(CONFIG_ARCH_STI) += sti
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machine-$(CONFIG_ARCH_STM32) += stm32
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machine-$(CONFIG_ARCH_SUNPLUS) += sunplus
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machine-$(CONFIG_ARCH_SUNXI) += sunxi
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machine-$(CONFIG_ARCH_TEGRA) += tegra
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machine-$(CONFIG_ARCH_U8500) += ux500
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|
|
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|||
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|
@ -79,6 +79,8 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
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|||
at91-vinco.dtb
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dtb-$(CONFIG_SOC_SAMA7G5) += \
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at91-sama7g5ek.dtb
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dtb-$(CONFIG_SOC_SP7021) += \
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sunplus-sp7021-demo-v3.dtb
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dtb-$(CONFIG_ARCH_AXXIA) += \
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axm5516-amarillo.dtb
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dtb-$(CONFIG_ARCH_BCM2835) += \
|
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|
|
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|||
84
arch/arm/boot/dts/sunplus-sp7021-achip.dtsi
Normal file
84
arch/arm/boot/dts/sunplus-sp7021-achip.dtsi
Normal file
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|
@ -0,0 +1,84 @@
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|||
// SPDX-License-Identifier: GPL-2.0
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/*
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||||
* Device Tree Source for Sunplus SP7021
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*
|
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* Copyright (C) 2021 Sunplus Technology Co.
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*/
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#include "sunplus-sp7021.dtsi"
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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/ {
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compatible = "sunplus,sp7021-achip", "sunplus,sp7021";
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model = "Sunplus SP7021 (CA7)";
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#address-cells = <1>;
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#size-cells = <1>;
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interrupt-parent = <&gic>;
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu0: cpu@0 {
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compatible = "arm,cortex-a7";
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device_type = "cpu";
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reg = <0>;
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clock-frequency = <931000000>;
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};
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cpu1: cpu@1 {
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compatible = "arm,cortex-a7";
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device_type = "cpu";
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reg = <1>;
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clock-frequency = <931000000>;
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};
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cpu2: cpu@2 {
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compatible = "arm,cortex-a7";
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device_type = "cpu";
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reg = <2>;
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clock-frequency = <931000000>;
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};
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cpu3: cpu@3 {
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compatible = "arm,cortex-a7";
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device_type = "cpu";
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reg = <3>;
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clock-frequency = <931000000>;
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};
|
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};
|
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|
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gic: interrupt-controller@9f101000 {
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compatible = "arm,cortex-a7-gic";
|
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interrupt-controller;
|
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#interrupt-cells = <3>;
|
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reg = <0x9f101000 0x1000>,
|
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<0x9f102000 0x2000>,
|
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<0x9f104000 0x2000>,
|
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<0x9f106000 0x2000>;
|
||||
};
|
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|
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timer {
|
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compatible = "arm,armv7-timer";
|
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interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
|
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<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
|
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<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
|
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<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
|
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clock-frequency = <XTAL>;
|
||||
arm,cpu-registers-not-fw-configured;
|
||||
};
|
||||
|
||||
arm-pmu {
|
||||
compatible = "arm,cortex-a7-pmu";
|
||||
interrupts = <GIC_SPI 219 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
|
||||
};
|
||||
|
||||
soc@9c000000 {
|
||||
intc: interrupt-controller@780 {
|
||||
interrupt-parent = <&gic>;
|
||||
interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>, /* EXT_INT0 */
|
||||
<GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>; /* EXT_INT1 */
|
||||
};
|
||||
};
|
||||
};
|
||||
30
arch/arm/boot/dts/sunplus-sp7021-demo-v3.dts
Normal file
30
arch/arm/boot/dts/sunplus-sp7021-demo-v3.dts
Normal file
|
|
@ -0,0 +1,30 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Device Tree Source for Sunplus SP7021 Demo V3 SBC board
|
||||
*
|
||||
* Copyright (C) Sunplus Technology Co.
|
||||
*/
|
||||
|
||||
/dts-v1/;
|
||||
|
||||
#include "sunplus-sp7021-achip.dtsi"
|
||||
|
||||
/ {
|
||||
compatible = "sunplus,sp7021-demo-v3", "sunplus,sp7021";
|
||||
model = "Sunplus SP7021/CA7/Demo_V3";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
aliases {
|
||||
serial0 = &uart0;
|
||||
};
|
||||
|
||||
chosen {
|
||||
stdout-path = "serial0:115200n8";
|
||||
};
|
||||
|
||||
memory@0 {
|
||||
device_type = "memory";
|
||||
reg = <0x00000000 0x20000000>;
|
||||
};
|
||||
};
|
||||
310
arch/arm/boot/dts/sunplus-sp7021.dtsi
Normal file
310
arch/arm/boot/dts/sunplus-sp7021.dtsi
Normal file
|
|
@ -0,0 +1,310 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
/*
|
||||
* Device Tree Source for Sunplus SP7021
|
||||
*
|
||||
* Copyright (C) 2021 Sunplus Technology Co.
|
||||
*/
|
||||
|
||||
#include <dt-bindings/clock/sunplus,sp7021-clkc.h>
|
||||
#include <dt-bindings/interrupt-controller/irq.h>
|
||||
#include <dt-bindings/reset/sunplus,sp7021-reset.h>
|
||||
#include <dt-bindings/pinctrl/sppctl-sp7021.h>
|
||||
#include <dt-bindings/gpio/gpio.h>
|
||||
|
||||
#define XTAL 27000000
|
||||
|
||||
/ {
|
||||
compatible = "sunplus,sp7021";
|
||||
model = "Sunplus SP7021";
|
||||
|
||||
clocks {
|
||||
extclk: osc0 {
|
||||
compatible = "fixed-clock";
|
||||
#clock-cells = <0>;
|
||||
clock-frequency = <XTAL>;
|
||||
clock-output-names = "extclk";
|
||||
};
|
||||
};
|
||||
|
||||
soc@9c000000 {
|
||||
compatible = "simple-bus";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
ranges = <0 0x9c000000 0x400000>;
|
||||
interrupt-parent = <&intc>;
|
||||
|
||||
clkc: clock-controller@4 {
|
||||
compatible = "sunplus,sp7021-clkc";
|
||||
reg = <0x4 0x28>,
|
||||
<0x200 0x44>,
|
||||
<0x268 0x04>;
|
||||
clocks = <&extclk>;
|
||||
#clock-cells = <1>;
|
||||
};
|
||||
|
||||
intc: interrupt-controller@780 {
|
||||
compatible = "sunplus,sp7021-intc";
|
||||
reg = <0x780 0x80>, <0xa80 0x80>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
otp: otp@af00 {
|
||||
compatible = "sunplus,sp7021-ocotp";
|
||||
reg = <0xaf00 0x34>, <0xaf80 0x58>;
|
||||
reg-names = "hb_gpio", "otprx";
|
||||
clocks = <&clkc CLK_OTPRX>;
|
||||
resets = <&rstc RST_OTPRX>;
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
therm_calib: thermal-calibration@14 {
|
||||
reg = <0x14 0x3>;
|
||||
};
|
||||
disc_vol: disconnect-voltage@18 {
|
||||
reg = <0x18 0x2>;
|
||||
};
|
||||
mac_addr0: mac-address0@34 {
|
||||
reg = <0x34 0x6>;
|
||||
};
|
||||
mac_addr1: mac-address1@3a {
|
||||
reg = <0x3a 0x6>;
|
||||
};
|
||||
};
|
||||
|
||||
pctl: pinctrl@100 {
|
||||
compatible = "sunplus,sp7021-pctl";
|
||||
reg = <0x100 0x100>,
|
||||
<0x300 0x100>,
|
||||
<0x32e4 0x1C>,
|
||||
<0x80 0x20>;
|
||||
reg-names = "moon2", "gpioxt", "first", "moon1";
|
||||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
clocks = <&clkc CLK_GPIO>;
|
||||
resets = <&rstc RST_GPIO>;
|
||||
|
||||
emac_pins: pinmux-emac-pins {
|
||||
sunplus,pins = <
|
||||
SPPCTL_IOPAD(49,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_CLK_OUT,0)
|
||||
SPPCTL_IOPAD(44,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_MAC_SMI_MDC,0)
|
||||
SPPCTL_IOPAD(43,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_MAC_SMI_MDIO,0)
|
||||
SPPCTL_IOPAD(52,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_TXEN,0)
|
||||
SPPCTL_IOPAD(50,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_TXD0,0)
|
||||
SPPCTL_IOPAD(51,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_TXD1,0)
|
||||
SPPCTL_IOPAD(46,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_CRSDV,0)
|
||||
SPPCTL_IOPAD(47,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_RXD0,0)
|
||||
SPPCTL_IOPAD(48,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_RXD1,0)
|
||||
SPPCTL_IOPAD(45,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P0_MAC_RMII_RXER,0)
|
||||
SPPCTL_IOPAD(59,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_TXEN,0)
|
||||
SPPCTL_IOPAD(57,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_TXD0,0)
|
||||
SPPCTL_IOPAD(58,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_TXD1,0)
|
||||
SPPCTL_IOPAD(54,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_CRSDV,0)
|
||||
SPPCTL_IOPAD(55,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_RXD0,0)
|
||||
SPPCTL_IOPAD(56,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_RXD1,0)
|
||||
SPPCTL_IOPAD(53,SPPCTL_PCTL_G_PMUX,MUXF_L2SW_P1_MAC_RMII_RXER,0)
|
||||
>;
|
||||
sunplus,zerofunc = <
|
||||
MUXF_L2SW_LED_FLASH0
|
||||
MUXF_L2SW_LED_FLASH1
|
||||
MUXF_L2SW_LED_ON0
|
||||
MUXF_L2SW_LED_ON1
|
||||
MUXF_DAISY_MODE
|
||||
>;
|
||||
};
|
||||
|
||||
emmc_pins: pinmux-emmc-pins {
|
||||
function = "CARD0_EMMC";
|
||||
groups = "CARD0_EMMC";
|
||||
};
|
||||
|
||||
leds_pins: pinmux-leds-pins {
|
||||
sunplus,pins = < SPPCTL_IOPAD(0,SPPCTL_PCTL_G_GPIO,0,SPPCTL_PCTL_L_OUT) >;
|
||||
};
|
||||
|
||||
sdcard_pins: pinmux-sdcard-pins {
|
||||
function = "SD_CARD";
|
||||
groups = "SD_CARD";
|
||||
sunplus,pins = < SPPCTL_IOPAD(91, SPPCTL_PCTL_G_GPIO, 0, 0) >;
|
||||
};
|
||||
|
||||
spi0_pins: pinmux-spi0-pins {
|
||||
sunplus,pins = <
|
||||
SPPCTL_IOPAD(26,SPPCTL_PCTL_G_GPIO,0,0)
|
||||
SPPCTL_IOPAD(28,SPPCTL_PCTL_G_GPIO,0,0)
|
||||
SPPCTL_IOPAD(23,SPPCTL_PCTL_G_PMUX,MUXF_SPI0S_DO,0)
|
||||
SPPCTL_IOPAD(25,SPPCTL_PCTL_G_PMUX,MUXF_SPI0S_DI,0)
|
||||
SPPCTL_IOPAD(27,SPPCTL_PCTL_G_PMUX,MUXF_SPI0S_CLK,0)
|
||||
>;
|
||||
};
|
||||
|
||||
uart0_pins: pinmux-uart0-pins {
|
||||
function = "UA0";
|
||||
groups = "UA0";
|
||||
};
|
||||
|
||||
uart1_pins: pinmux-uart1-pins {
|
||||
sunplus,pins = <
|
||||
SPPCTL_IOPAD(14,SPPCTL_PCTL_G_PMUX,MUXF_UA4_TX,0)
|
||||
SPPCTL_IOPAD(16,SPPCTL_PCTL_G_PMUX,MUXF_UA4_RX,0)
|
||||
>;
|
||||
};
|
||||
|
||||
uart2_pins: pinmux-uart2-pins {
|
||||
sunplus,pins = <
|
||||
SPPCTL_IOPAD(16,SPPCTL_PCTL_G_PMUX,MUXF_UA2_TX,0)
|
||||
SPPCTL_IOPAD(17,SPPCTL_PCTL_G_PMUX,MUXF_UA2_RX,0)
|
||||
SPPCTL_IOPAD(18,SPPCTL_PCTL_G_PMUX,MUXF_UA2_RTS,0)
|
||||
SPPCTL_IOPAD(19,SPPCTL_PCTL_G_PMUX,MUXF_UA2_CTS,0)
|
||||
>;
|
||||
};
|
||||
|
||||
uart4_pins: pinmux-uart4-pins {
|
||||
sunplus,pins = <
|
||||
SPPCTL_IOPAD(22,SPPCTL_PCTL_G_PMUX,MUXF_UA4_TX,0)
|
||||
SPPCTL_IOPAD(20,SPPCTL_PCTL_G_PMUX,MUXF_UA4_RX,0)
|
||||
SPPCTL_IOPAD(23,SPPCTL_PCTL_G_PMUX,MUXF_UA4_RTS,0)
|
||||
SPPCTL_IOPAD(21,SPPCTL_PCTL_G_PMUX,MUXF_UA4_CTS,0)
|
||||
>;
|
||||
};
|
||||
};
|
||||
|
||||
rstc: reset@54 {
|
||||
compatible = "sunplus,sp7021-reset";
|
||||
reg = <0x54 0x28>;
|
||||
#reset-cells = <1>;
|
||||
};
|
||||
|
||||
rtc: rtc@3a00 {
|
||||
compatible = "sunplus,sp7021-rtc";
|
||||
reg = <0x3a00 0x80>;
|
||||
reg-names = "rtc";
|
||||
clocks = <&clkc CLK_RTC>;
|
||||
resets = <&rstc RST_RTC>;
|
||||
interrupts = <163 IRQ_TYPE_EDGE_RISING>;
|
||||
};
|
||||
|
||||
spi_controller0: spi@2d80 {
|
||||
compatible = "sunplus,sp7021-spi";
|
||||
reg = <0x2d80 0x80>, <0x2e00 0x80>;
|
||||
reg-names = "master", "slave";
|
||||
interrupts = <144 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<146 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<145 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "dma_w", "master_risc", "slave_risc";
|
||||
clocks = <&clkc CLK_SPI_COMBO_0>;
|
||||
resets = <&rstc RST_SPI_COMBO_0>;
|
||||
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&spi0_pins>;
|
||||
cs-gpios = <&pctl 26 GPIO_ACTIVE_LOW>,
|
||||
<&pctl 28 GPIO_ACTIVE_LOW>;
|
||||
};
|
||||
|
||||
spi_controller1: spi@f480 {
|
||||
compatible = "sunplus,sp7021-spi";
|
||||
reg = <0xf480 0x80>, <0xf500 0x80>;
|
||||
reg-names = "master", "slave";
|
||||
interrupts = <67 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<69 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<68 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "dma_w", "master_risc", "slave_risc";
|
||||
clocks = <&clkc CLK_SPI_COMBO_1>;
|
||||
resets = <&rstc RST_SPI_COMBO_1>;
|
||||
spi-max-frequency = <25000000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
spi_controller2: spi@f600 {
|
||||
compatible = "sunplus,sp7021-spi";
|
||||
reg = <0xf600 0x80>, <0xf680 0x80>;
|
||||
reg-names = "master", "slave";
|
||||
interrupts = <70 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<72 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<71 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "dma_w", "master_risc", "slave_risc";
|
||||
clocks = <&clkc CLK_SPI_COMBO_2>;
|
||||
resets = <&rstc RST_SPI_COMBO_2>;
|
||||
spi-max-frequency = <25000000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
spi_controller3: spi@f780 {
|
||||
compatible = "sunplus,sp7021-spi";
|
||||
reg = <0xf780 0x80>, <0xf800 0x80>;
|
||||
reg-names = "master", "slave";
|
||||
interrupts = <73 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<75 IRQ_TYPE_LEVEL_HIGH>,
|
||||
<74 IRQ_TYPE_LEVEL_HIGH>;
|
||||
interrupt-names = "dma_w", "master_risc", "slave_risc";
|
||||
clocks = <&clkc CLK_SPI_COMBO_3>;
|
||||
resets = <&rstc RST_SPI_COMBO_3>;
|
||||
spi-max-frequency = <25000000>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
uart0: serial@900 {
|
||||
compatible = "sunplus,sp7021-uart";
|
||||
reg = <0x900 0x80>;
|
||||
interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&clkc CLK_UA0>;
|
||||
resets = <&rstc RST_UA0>;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&uart0_pins>;
|
||||
};
|
||||
|
||||
uart1: serial@980 {
|
||||
compatible = "sunplus,sp7021-uart";
|
||||
reg = <0x980 0x80>;
|
||||
interrupts = <54 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&clkc CLK_UA1>;
|
||||
resets = <&rstc RST_UA1>;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&uart1_pins>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
uart2: serial@800 {
|
||||
compatible = "sunplus,sp7021-uart";
|
||||
reg = <0x800 0x80>;
|
||||
interrupts = <55 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&clkc CLK_UA2>;
|
||||
resets = <&rstc RST_UA2>;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&uart2_pins>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
uart3: serial@880 {
|
||||
compatible = "sunplus,sp7021-uart";
|
||||
reg = <0x880 0x80>;
|
||||
interrupts = <56 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&clkc CLK_UA3>;
|
||||
resets = <&rstc RST_UA3>;
|
||||
status = "disabled";
|
||||
};
|
||||
|
||||
uart4: serial@8780 {
|
||||
compatible = "sunplus,sp7021-uart";
|
||||
reg = <0x8780 0x80>;
|
||||
interrupts = <134 IRQ_TYPE_LEVEL_HIGH>;
|
||||
clocks = <&clkc CLK_UA4>;
|
||||
resets = <&rstc RST_UA4>;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&uart4_pins>;
|
||||
status = "disabled";
|
||||
};
|
||||
};
|
||||
|
||||
leds {
|
||||
compatible = "gpio-leds";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&leds_pins>;
|
||||
system-led {
|
||||
label = "system-led";
|
||||
gpios = <&pctl 0 GPIO_ACTIVE_HIGH>;
|
||||
default-state = "off";
|
||||
linux,default-trigger = "heartbeat";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
@ -94,6 +94,7 @@ CONFIG_MACH_SPEAR1310=y
|
|||
CONFIG_MACH_SPEAR1340=y
|
||||
CONFIG_ARCH_STI=y
|
||||
CONFIG_ARCH_STM32=y
|
||||
CONFIG_ARCH_SUNPLUS=y
|
||||
CONFIG_ARCH_SUNXI=y
|
||||
CONFIG_ARCH_TEGRA=y
|
||||
CONFIG_ARCH_UNIPHIER=y
|
||||
|
|
|
|||
59
arch/arm/configs/sp7021_defconfig
Normal file
59
arch/arm/configs/sp7021_defconfig
Normal file
|
|
@ -0,0 +1,59 @@
|
|||
CONFIG_SYSVIPC=y
|
||||
CONFIG_NO_HZ_IDLE=y
|
||||
CONFIG_HIGH_RES_TIMERS=y
|
||||
CONFIG_PREEMPT=y
|
||||
CONFIG_IKCONFIG=y
|
||||
CONFIG_IKCONFIG_PROC=y
|
||||
CONFIG_LOG_BUF_SHIFT=14
|
||||
# CONFIG_RD_GZIP is not set
|
||||
# CONFIG_RD_BZIP2 is not set
|
||||
# CONFIG_RD_LZMA is not set
|
||||
# CONFIG_RD_XZ is not set
|
||||
# CONFIG_RD_LZO is not set
|
||||
# CONFIG_RD_LZ4 is not set
|
||||
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
|
||||
CONFIG_PERF_EVENTS=y
|
||||
CONFIG_SLAB=y
|
||||
CONFIG_ARCH_SUNPLUS=y
|
||||
# CONFIG_VDSO is not set
|
||||
CONFIG_SMP=y
|
||||
CONFIG_THUMB2_KERNEL=y
|
||||
CONFIG_FORCE_MAX_ZONEORDER=12
|
||||
CONFIG_VFP=y
|
||||
CONFIG_NEON=y
|
||||
CONFIG_MODULES=y
|
||||
CONFIG_MODULE_UNLOAD=y
|
||||
CONFIG_MODVERSIONS=y
|
||||
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
|
||||
CONFIG_UEVENT_HELPER=y
|
||||
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
|
||||
CONFIG_DEVTMPFS=y
|
||||
CONFIG_DEVTMPFS_MOUNT=y
|
||||
CONFIG_BLK_DEV_LOOP=y
|
||||
CONFIG_INPUT_SPARSEKMAP=y
|
||||
CONFIG_INPUT_EVDEV=y
|
||||
# CONFIG_INPUT_KEYBOARD is not set
|
||||
# CONFIG_INPUT_MOUSE is not set
|
||||
# CONFIG_LEGACY_PTYS is not set
|
||||
# CONFIG_HW_RANDOM is not set
|
||||
# CONFIG_HWMON is not set
|
||||
# CONFIG_IOMMU_SUPPORT is not set
|
||||
CONFIG_RESET_CONTROLLER=y
|
||||
CONFIG_EXT4_FS=y
|
||||
# CONFIG_DNOTIFY is not set
|
||||
CONFIG_FANOTIFY=y
|
||||
CONFIG_VFAT_FS=y
|
||||
CONFIG_FAT_DEFAULT_IOCHARSET="utf8"
|
||||
CONFIG_EXFAT_FS=y
|
||||
CONFIG_TMPFS=y
|
||||
CONFIG_TMPFS_POSIX_ACL=y
|
||||
# CONFIG_MISC_FILESYSTEMS is not set
|
||||
CONFIG_NLS_CODEPAGE_437=y
|
||||
CONFIG_NLS_ASCII=y
|
||||
CONFIG_NLS_ISO8859_1=y
|
||||
CONFIG_NLS_UTF8=y
|
||||
CONFIG_PRINTK_TIME=y
|
||||
CONFIG_DYNAMIC_DEBUG=y
|
||||
CONFIG_MAGIC_SYSRQ=y
|
||||
CONFIG_DEBUG_FS=y
|
||||
CONFIG_DEBUG_USER=y
|
||||
27
arch/arm/mach-sunplus/Kconfig
Normal file
27
arch/arm/mach-sunplus/Kconfig
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
|
||||
menuconfig ARCH_SUNPLUS
|
||||
bool "Sunplus SoCs"
|
||||
depends on ARCH_MULTI_V7
|
||||
help
|
||||
Support for Sunplus SoC family: SP7021 and succeeding SoC-based systems,
|
||||
such as the Banana Pi BPI-F2S development board (and derivatives).
|
||||
(<http://www.sinovoip.com.cn/ecp_view.asp?id=586>)
|
||||
(<https://tibbo.com/store/plus1.html>)
|
||||
|
||||
config SOC_SP7021
|
||||
bool "Sunplus SP7021 SoC support"
|
||||
depends on ARCH_SUNPLUS
|
||||
default ARCH_SUNPLUS
|
||||
select HAVE_ARM_ARCH_TIMER
|
||||
select ARM_GIC
|
||||
select ARM_PSCI
|
||||
select PINCTRL
|
||||
select PINCTRL_SPPCTL
|
||||
select SERIAL_SUNPLUS
|
||||
select SERIAL_SUNPLUS_CONSOLE
|
||||
help
|
||||
Support for Sunplus SP7021 SoC. It is based on ARM 4-core
|
||||
Cortex-A7 with various peripherals (e.g.: I2C, SPI, SDIO,
|
||||
Ethernet, etc.), FPGA interface, chip-to-chip bus.
|
||||
It is designed for industrial control.
|
||||
8
arch/arm/mach-sunplus/Makefile
Normal file
8
arch/arm/mach-sunplus/Makefile
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
#
|
||||
# Makefile for the linux kernel.
|
||||
#
|
||||
|
||||
# Object file lists.
|
||||
|
||||
obj-$(CONFIG_SOC_SP7021) += sp7021.o
|
||||
16
arch/arm/mach-sunplus/sp7021.c
Normal file
16
arch/arm/mach-sunplus/sp7021.c
Normal file
|
|
@ -0,0 +1,16 @@
|
|||
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
/*
|
||||
* Copyright (C) Sunplus Technology Co., Ltd.
|
||||
* All rights reserved.
|
||||
*/
|
||||
#include <linux/kernel.h>
|
||||
#include <asm/mach/arch.h>
|
||||
|
||||
static const char *sp7021_compat[] __initconst = {
|
||||
"sunplus,sp7021",
|
||||
NULL
|
||||
};
|
||||
|
||||
DT_MACHINE_START(SP7021_DT, "SP7021")
|
||||
.dt_compat = sp7021_compat,
|
||||
MACHINE_END
|
||||
|
|
@ -627,4 +627,13 @@ config MCHP_EIC
|
|||
help
|
||||
Support for Microchip External Interrupt Controller.
|
||||
|
||||
config SUNPLUS_SP7021_INTC
|
||||
bool "Sunplus SP7021 interrupt controller" if COMPILE_TEST
|
||||
default SOC_SP7021
|
||||
help
|
||||
Support for the Sunplus SP7021 Interrupt Controller IP core.
|
||||
SP7021 SoC has 2 Chips: C-Chip & P-Chip. This is used as a
|
||||
chained controller, routing all interrupt source in P-Chip to
|
||||
the primary controller on C-Chip.
|
||||
|
||||
endmenu
|
||||
|
|
|
|||
|
|
@ -115,3 +115,4 @@ obj-$(CONFIG_WPCM450_AIC) += irq-wpcm450-aic.o
|
|||
obj-$(CONFIG_IRQ_IDT3243X) += irq-idt3243x.o
|
||||
obj-$(CONFIG_APPLE_AIC) += irq-apple-aic.o
|
||||
obj-$(CONFIG_MCHP_EIC) += irq-mchp-eic.o
|
||||
obj-$(CONFIG_SUNPLUS_SP7021_INTC) += irq-sp7021-intc.o
|
||||
|
|
|
|||
278
drivers/irqchip/irq-sp7021-intc.c
Normal file
278
drivers/irqchip/irq-sp7021-intc.c
Normal file
|
|
@ -0,0 +1,278 @@
|
|||
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
/*
|
||||
* Copyright (C) Sunplus Technology Co., Ltd.
|
||||
* All rights reserved.
|
||||
*/
|
||||
#include <linux/irq.h>
|
||||
#include <linux/irqdomain.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/irqchip.h>
|
||||
#include <linux/irqchip/chained_irq.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/of_irq.h>
|
||||
|
||||
#define SP_INTC_HWIRQ_MIN 0
|
||||
#define SP_INTC_HWIRQ_MAX 223
|
||||
|
||||
#define SP_INTC_NR_IRQS (SP_INTC_HWIRQ_MAX - SP_INTC_HWIRQ_MIN + 1)
|
||||
#define SP_INTC_NR_GROUPS DIV_ROUND_UP(SP_INTC_NR_IRQS, 32)
|
||||
#define SP_INTC_REG_SIZE (SP_INTC_NR_GROUPS * 4)
|
||||
|
||||
/* REG_GROUP_0 regs */
|
||||
#define REG_INTR_TYPE (sp_intc.g0)
|
||||
#define REG_INTR_POLARITY (REG_INTR_TYPE + SP_INTC_REG_SIZE)
|
||||
#define REG_INTR_PRIORITY (REG_INTR_POLARITY + SP_INTC_REG_SIZE)
|
||||
#define REG_INTR_MASK (REG_INTR_PRIORITY + SP_INTC_REG_SIZE)
|
||||
|
||||
/* REG_GROUP_1 regs */
|
||||
#define REG_INTR_CLEAR (sp_intc.g1)
|
||||
#define REG_MASKED_EXT1 (REG_INTR_CLEAR + SP_INTC_REG_SIZE)
|
||||
#define REG_MASKED_EXT0 (REG_MASKED_EXT1 + SP_INTC_REG_SIZE)
|
||||
#define REG_INTR_GROUP (REG_INTR_CLEAR + 31 * 4)
|
||||
|
||||
#define GROUP_MASK (BIT(SP_INTC_NR_GROUPS) - 1)
|
||||
#define GROUP_SHIFT_EXT1 (0)
|
||||
#define GROUP_SHIFT_EXT0 (8)
|
||||
|
||||
/*
|
||||
* When GPIO_INT0~7 set to edge trigger, doesn't work properly.
|
||||
* WORKAROUND: change it to level trigger, and toggle the polarity
|
||||
* at ACK/Handler to make the HW work.
|
||||
*/
|
||||
#define GPIO_INT0_HWIRQ 120
|
||||
#define GPIO_INT7_HWIRQ 127
|
||||
#define IS_GPIO_INT(irq) \
|
||||
({ \
|
||||
u32 i = irq; \
|
||||
(i >= GPIO_INT0_HWIRQ) && (i <= GPIO_INT7_HWIRQ); \
|
||||
})
|
||||
|
||||
/* index of states */
|
||||
enum {
|
||||
_IS_EDGE = 0,
|
||||
_IS_LOW,
|
||||
_IS_ACTIVE
|
||||
};
|
||||
|
||||
#define STATE_BIT(irq, idx) (((irq) - GPIO_INT0_HWIRQ) * 3 + (idx))
|
||||
#define ASSIGN_STATE(irq, idx, v) assign_bit(STATE_BIT(irq, idx), sp_intc.states, v)
|
||||
#define TEST_STATE(irq, idx) test_bit(STATE_BIT(irq, idx), sp_intc.states)
|
||||
|
||||
static struct sp_intctl {
|
||||
/*
|
||||
* REG_GROUP_0: include type/polarity/priority/mask regs.
|
||||
* REG_GROUP_1: include clear/masked_ext0/masked_ext1/group regs.
|
||||
*/
|
||||
void __iomem *g0; // REG_GROUP_0 base
|
||||
void __iomem *g1; // REG_GROUP_1 base
|
||||
|
||||
struct irq_domain *domain;
|
||||
raw_spinlock_t lock;
|
||||
|
||||
/*
|
||||
* store GPIO_INT states
|
||||
* each interrupt has 3 states: is_edge, is_low, is_active
|
||||
*/
|
||||
DECLARE_BITMAP(states, (GPIO_INT7_HWIRQ - GPIO_INT0_HWIRQ + 1) * 3);
|
||||
} sp_intc;
|
||||
|
||||
static struct irq_chip sp_intc_chip;
|
||||
|
||||
static void sp_intc_assign_bit(u32 hwirq, void __iomem *base, bool value)
|
||||
{
|
||||
u32 offset, mask;
|
||||
unsigned long flags;
|
||||
void __iomem *reg;
|
||||
|
||||
offset = (hwirq / 32) * 4;
|
||||
reg = base + offset;
|
||||
|
||||
raw_spin_lock_irqsave(&sp_intc.lock, flags);
|
||||
mask = readl_relaxed(reg);
|
||||
if (value)
|
||||
mask |= BIT(hwirq % 32);
|
||||
else
|
||||
mask &= ~BIT(hwirq % 32);
|
||||
writel_relaxed(mask, reg);
|
||||
raw_spin_unlock_irqrestore(&sp_intc.lock, flags);
|
||||
}
|
||||
|
||||
static void sp_intc_ack_irq(struct irq_data *d)
|
||||
{
|
||||
u32 hwirq = d->hwirq;
|
||||
|
||||
if (unlikely(IS_GPIO_INT(hwirq) && TEST_STATE(hwirq, _IS_EDGE))) { // WORKAROUND
|
||||
sp_intc_assign_bit(hwirq, REG_INTR_POLARITY, !TEST_STATE(hwirq, _IS_LOW));
|
||||
ASSIGN_STATE(hwirq, _IS_ACTIVE, true);
|
||||
}
|
||||
|
||||
sp_intc_assign_bit(hwirq, REG_INTR_CLEAR, 1);
|
||||
}
|
||||
|
||||
static void sp_intc_mask_irq(struct irq_data *d)
|
||||
{
|
||||
sp_intc_assign_bit(d->hwirq, REG_INTR_MASK, 0);
|
||||
}
|
||||
|
||||
static void sp_intc_unmask_irq(struct irq_data *d)
|
||||
{
|
||||
sp_intc_assign_bit(d->hwirq, REG_INTR_MASK, 1);
|
||||
}
|
||||
|
||||
static int sp_intc_set_type(struct irq_data *d, unsigned int type)
|
||||
{
|
||||
u32 hwirq = d->hwirq;
|
||||
bool is_edge = !(type & IRQ_TYPE_LEVEL_MASK);
|
||||
bool is_low = (type == IRQ_TYPE_LEVEL_LOW || type == IRQ_TYPE_EDGE_FALLING);
|
||||
|
||||
irq_set_handler_locked(d, is_edge ? handle_edge_irq : handle_level_irq);
|
||||
|
||||
if (unlikely(IS_GPIO_INT(hwirq) && is_edge)) { // WORKAROUND
|
||||
/* store states */
|
||||
ASSIGN_STATE(hwirq, _IS_EDGE, is_edge);
|
||||
ASSIGN_STATE(hwirq, _IS_LOW, is_low);
|
||||
ASSIGN_STATE(hwirq, _IS_ACTIVE, false);
|
||||
/* change to level */
|
||||
is_edge = false;
|
||||
}
|
||||
|
||||
sp_intc_assign_bit(hwirq, REG_INTR_TYPE, is_edge);
|
||||
sp_intc_assign_bit(hwirq, REG_INTR_POLARITY, is_low);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sp_intc_get_ext_irq(int ext_num)
|
||||
{
|
||||
void __iomem *base = ext_num ? REG_MASKED_EXT1 : REG_MASKED_EXT0;
|
||||
u32 shift = ext_num ? GROUP_SHIFT_EXT1 : GROUP_SHIFT_EXT0;
|
||||
u32 groups;
|
||||
u32 pending_group;
|
||||
u32 group;
|
||||
u32 pending_irq;
|
||||
|
||||
groups = readl_relaxed(REG_INTR_GROUP);
|
||||
pending_group = (groups >> shift) & GROUP_MASK;
|
||||
if (!pending_group)
|
||||
return -1;
|
||||
|
||||
group = fls(pending_group) - 1;
|
||||
pending_irq = readl_relaxed(base + group * 4);
|
||||
if (!pending_irq)
|
||||
return -1;
|
||||
|
||||
return (group * 32) + fls(pending_irq) - 1;
|
||||
}
|
||||
|
||||
static void sp_intc_handle_ext_cascaded(struct irq_desc *desc)
|
||||
{
|
||||
struct irq_chip *chip = irq_desc_get_chip(desc);
|
||||
int ext_num = (uintptr_t)irq_desc_get_handler_data(desc);
|
||||
int hwirq;
|
||||
|
||||
chained_irq_enter(chip, desc);
|
||||
|
||||
while ((hwirq = sp_intc_get_ext_irq(ext_num)) >= 0) {
|
||||
if (unlikely(IS_GPIO_INT(hwirq) && TEST_STATE(hwirq, _IS_ACTIVE))) { // WORKAROUND
|
||||
ASSIGN_STATE(hwirq, _IS_ACTIVE, false);
|
||||
sp_intc_assign_bit(hwirq, REG_INTR_POLARITY, TEST_STATE(hwirq, _IS_LOW));
|
||||
} else {
|
||||
generic_handle_domain_irq(sp_intc.domain, hwirq);
|
||||
}
|
||||
}
|
||||
|
||||
chained_irq_exit(chip, desc);
|
||||
}
|
||||
|
||||
static struct irq_chip sp_intc_chip = {
|
||||
.name = "sp_intc",
|
||||
.irq_ack = sp_intc_ack_irq,
|
||||
.irq_mask = sp_intc_mask_irq,
|
||||
.irq_unmask = sp_intc_unmask_irq,
|
||||
.irq_set_type = sp_intc_set_type,
|
||||
};
|
||||
|
||||
static int sp_intc_irq_domain_map(struct irq_domain *domain,
|
||||
unsigned int irq, irq_hw_number_t hwirq)
|
||||
{
|
||||
irq_set_chip_and_handler(irq, &sp_intc_chip, handle_level_irq);
|
||||
irq_set_chip_data(irq, &sp_intc_chip);
|
||||
irq_set_noprobe(irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct irq_domain_ops sp_intc_dm_ops = {
|
||||
.xlate = irq_domain_xlate_twocell,
|
||||
.map = sp_intc_irq_domain_map,
|
||||
};
|
||||
|
||||
static int sp_intc_irq_map(struct device_node *node, int i)
|
||||
{
|
||||
unsigned int irq;
|
||||
|
||||
irq = irq_of_parse_and_map(node, i);
|
||||
if (!irq)
|
||||
return -ENOENT;
|
||||
|
||||
irq_set_chained_handler_and_data(irq, sp_intc_handle_ext_cascaded, (void *)(uintptr_t)i);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init sp_intc_init_dt(struct device_node *node, struct device_node *parent)
|
||||
{
|
||||
int i, ret;
|
||||
|
||||
sp_intc.g0 = of_iomap(node, 0);
|
||||
if (!sp_intc.g0)
|
||||
return -ENXIO;
|
||||
|
||||
sp_intc.g1 = of_iomap(node, 1);
|
||||
if (!sp_intc.g1) {
|
||||
ret = -ENXIO;
|
||||
goto out_unmap0;
|
||||
}
|
||||
|
||||
ret = sp_intc_irq_map(node, 0); // EXT_INT0
|
||||
if (ret)
|
||||
goto out_unmap1;
|
||||
|
||||
ret = sp_intc_irq_map(node, 1); // EXT_INT1
|
||||
if (ret)
|
||||
goto out_unmap1;
|
||||
|
||||
/* initial regs */
|
||||
for (i = 0; i < SP_INTC_NR_GROUPS; i++) {
|
||||
/* all mask */
|
||||
writel_relaxed(0, REG_INTR_MASK + i * 4);
|
||||
/* all edge */
|
||||
writel_relaxed(~0, REG_INTR_TYPE + i * 4);
|
||||
/* all high-active */
|
||||
writel_relaxed(0, REG_INTR_POLARITY + i * 4);
|
||||
/* all EXT_INT0 */
|
||||
writel_relaxed(~0, REG_INTR_PRIORITY + i * 4);
|
||||
/* all clear */
|
||||
writel_relaxed(~0, REG_INTR_CLEAR + i * 4);
|
||||
}
|
||||
|
||||
sp_intc.domain = irq_domain_add_linear(node, SP_INTC_NR_IRQS,
|
||||
&sp_intc_dm_ops, &sp_intc);
|
||||
if (!sp_intc.domain) {
|
||||
ret = -ENOMEM;
|
||||
goto out_unmap1;
|
||||
}
|
||||
|
||||
raw_spin_lock_init(&sp_intc.lock);
|
||||
|
||||
return 0;
|
||||
|
||||
out_unmap1:
|
||||
iounmap(sp_intc.g1);
|
||||
out_unmap0:
|
||||
iounmap(sp_intc.g0);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
IRQCHIP_DECLARE(sp_intc, "sunplus,sp7021-intc", sp_intc_init_dt);
|
||||
|
|
@ -231,6 +231,15 @@ config RESET_STARFIVE_JH7100
|
|||
help
|
||||
This enables the reset controller driver for the StarFive JH7100 SoC.
|
||||
|
||||
config RESET_SUNPLUS
|
||||
bool "Sunplus SoCs Reset Driver" if COMPILE_TEST
|
||||
default ARCH_SUNPLUS
|
||||
help
|
||||
This enables the reset driver support for Sunplus SoCs.
|
||||
The reset lines that can be asserted and deasserted by toggling bits
|
||||
in a contiguous, exclusive register space. The register is HIWORD_MASKED,
|
||||
which means each register holds 16 reset lines.
|
||||
|
||||
config RESET_SUNXI
|
||||
bool "Allwinner SoCs Reset Driver" if COMPILE_TEST && !ARCH_SUNXI
|
||||
default ARCH_SUNXI
|
||||
|
|
|
|||
|
|
@ -30,6 +30,7 @@ obj-$(CONFIG_RESET_SCMI) += reset-scmi.o
|
|||
obj-$(CONFIG_RESET_SIMPLE) += reset-simple.o
|
||||
obj-$(CONFIG_RESET_SOCFPGA) += reset-socfpga.o
|
||||
obj-$(CONFIG_RESET_STARFIVE_JH7100) += reset-starfive-jh7100.o
|
||||
obj-$(CONFIG_RESET_SUNPLUS) += reset-sunplus.o
|
||||
obj-$(CONFIG_RESET_SUNXI) += reset-sunxi.o
|
||||
obj-$(CONFIG_RESET_TI_SCI) += reset-ti-sci.o
|
||||
obj-$(CONFIG_RESET_TI_SYSCON) += reset-ti-syscon.o
|
||||
|
|
|
|||
212
drivers/reset/reset-sunplus.c
Normal file
212
drivers/reset/reset-sunplus.c
Normal file
|
|
@ -0,0 +1,212 @@
|
|||
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||||
/*
|
||||
* SP7021 reset driver
|
||||
*
|
||||
* Copyright (C) Sunplus Technology Co., Ltd.
|
||||
* All rights reserved.
|
||||
*/
|
||||
|
||||
#include <linux/io.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/mod_devicetable.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/reset-controller.h>
|
||||
#include <linux/reboot.h>
|
||||
|
||||
/* HIWORD_MASK_REG BITS */
|
||||
#define BITS_PER_HWM_REG 16
|
||||
|
||||
/* resets HW info: reg_index_shift */
|
||||
static const u32 sp_resets[] = {
|
||||
/* SP7021: mo_reset0 ~ mo_reset9 */
|
||||
0x00,
|
||||
0x02,
|
||||
0x03,
|
||||
0x04,
|
||||
0x05,
|
||||
0x06,
|
||||
0x07,
|
||||
0x08,
|
||||
0x09,
|
||||
0x0a,
|
||||
0x0b,
|
||||
0x0d,
|
||||
0x0e,
|
||||
0x0f,
|
||||
0x10,
|
||||
0x12,
|
||||
0x14,
|
||||
0x15,
|
||||
0x16,
|
||||
0x17,
|
||||
0x18,
|
||||
0x19,
|
||||
0x1a,
|
||||
0x1b,
|
||||
0x1c,
|
||||
0x1d,
|
||||
0x1e,
|
||||
0x1f,
|
||||
0x20,
|
||||
0x21,
|
||||
0x22,
|
||||
0x23,
|
||||
0x24,
|
||||
0x25,
|
||||
0x26,
|
||||
0x2a,
|
||||
0x2b,
|
||||
0x2d,
|
||||
0x2e,
|
||||
0x30,
|
||||
0x31,
|
||||
0x32,
|
||||
0x33,
|
||||
0x3d,
|
||||
0x3e,
|
||||
0x3f,
|
||||
0x42,
|
||||
0x44,
|
||||
0x4b,
|
||||
0x4c,
|
||||
0x4d,
|
||||
0x4e,
|
||||
0x4f,
|
||||
0x50,
|
||||
0x55,
|
||||
0x60,
|
||||
0x61,
|
||||
0x6a,
|
||||
0x6f,
|
||||
0x70,
|
||||
0x73,
|
||||
0x74,
|
||||
0x86,
|
||||
0x8a,
|
||||
0x8b,
|
||||
0x8d,
|
||||
0x8e,
|
||||
0x8f,
|
||||
0x90,
|
||||
0x92,
|
||||
0x93,
|
||||
0x94,
|
||||
0x95,
|
||||
0x96,
|
||||
0x97,
|
||||
0x98,
|
||||
0x99,
|
||||
};
|
||||
|
||||
struct sp_reset {
|
||||
struct reset_controller_dev rcdev;
|
||||
struct notifier_block notifier;
|
||||
void __iomem *base;
|
||||
};
|
||||
|
||||
static inline struct sp_reset *to_sp_reset(struct reset_controller_dev *rcdev)
|
||||
{
|
||||
return container_of(rcdev, struct sp_reset, rcdev);
|
||||
}
|
||||
|
||||
static int sp_reset_update(struct reset_controller_dev *rcdev,
|
||||
unsigned long id, bool assert)
|
||||
{
|
||||
struct sp_reset *reset = to_sp_reset(rcdev);
|
||||
int index = sp_resets[id] / BITS_PER_HWM_REG;
|
||||
int shift = sp_resets[id] % BITS_PER_HWM_REG;
|
||||
u32 val;
|
||||
|
||||
val = (1 << (16 + shift)) | (assert << shift);
|
||||
writel(val, reset->base + (index * 4));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int sp_reset_assert(struct reset_controller_dev *rcdev,
|
||||
unsigned long id)
|
||||
{
|
||||
return sp_reset_update(rcdev, id, true);
|
||||
}
|
||||
|
||||
static int sp_reset_deassert(struct reset_controller_dev *rcdev,
|
||||
unsigned long id)
|
||||
{
|
||||
return sp_reset_update(rcdev, id, false);
|
||||
}
|
||||
|
||||
static int sp_reset_status(struct reset_controller_dev *rcdev,
|
||||
unsigned long id)
|
||||
{
|
||||
struct sp_reset *reset = to_sp_reset(rcdev);
|
||||
int index = sp_resets[id] / BITS_PER_HWM_REG;
|
||||
int shift = sp_resets[id] % BITS_PER_HWM_REG;
|
||||
u32 reg;
|
||||
|
||||
reg = readl(reset->base + (index * 4));
|
||||
|
||||
return !!(reg & BIT(shift));
|
||||
}
|
||||
|
||||
static const struct reset_control_ops sp_reset_ops = {
|
||||
.assert = sp_reset_assert,
|
||||
.deassert = sp_reset_deassert,
|
||||
.status = sp_reset_status,
|
||||
};
|
||||
|
||||
static int sp_restart(struct notifier_block *nb, unsigned long mode,
|
||||
void *cmd)
|
||||
{
|
||||
struct sp_reset *reset = container_of(nb, struct sp_reset, notifier);
|
||||
|
||||
sp_reset_assert(&reset->rcdev, 0);
|
||||
sp_reset_deassert(&reset->rcdev, 0);
|
||||
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static int sp_reset_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct sp_reset *reset;
|
||||
struct resource *res;
|
||||
int ret;
|
||||
|
||||
reset = devm_kzalloc(dev, sizeof(*reset), GFP_KERNEL);
|
||||
if (!reset)
|
||||
return -ENOMEM;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
reset->base = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(reset->base))
|
||||
return PTR_ERR(reset->base);
|
||||
|
||||
reset->rcdev.ops = &sp_reset_ops;
|
||||
reset->rcdev.owner = THIS_MODULE;
|
||||
reset->rcdev.of_node = dev->of_node;
|
||||
reset->rcdev.nr_resets = resource_size(res) / 4 * BITS_PER_HWM_REG;
|
||||
|
||||
ret = devm_reset_controller_register(dev, &reset->rcdev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
reset->notifier.notifier_call = sp_restart;
|
||||
reset->notifier.priority = 192;
|
||||
|
||||
return register_restart_handler(&reset->notifier);
|
||||
}
|
||||
|
||||
static const struct of_device_id sp_reset_dt_ids[] = {
|
||||
{.compatible = "sunplus,sp7021-reset",},
|
||||
{ /* sentinel */ },
|
||||
};
|
||||
|
||||
static struct platform_driver sp_reset_driver = {
|
||||
.probe = sp_reset_probe,
|
||||
.driver = {
|
||||
.name = "sunplus-reset",
|
||||
.of_match_table = sp_reset_dt_ids,
|
||||
.suppress_bind_attrs = true,
|
||||
},
|
||||
};
|
||||
builtin_platform_driver(sp_reset_driver);
|
||||
88
include/dt-bindings/clock/sunplus,sp7021-clkc.h
Normal file
88
include/dt-bindings/clock/sunplus,sp7021-clkc.h
Normal file
|
|
@ -0,0 +1,88 @@
|
|||
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
|
||||
/*
|
||||
* Copyright (C) Sunplus Technology Co., Ltd.
|
||||
* All rights reserved.
|
||||
*/
|
||||
#ifndef _DT_BINDINGS_CLOCK_SUNPLUS_SP7021_H
|
||||
#define _DT_BINDINGS_CLOCK_SUNPLUS_SP7021_H
|
||||
|
||||
/* gates */
|
||||
#define CLK_RTC 0
|
||||
#define CLK_OTPRX 1
|
||||
#define CLK_NOC 2
|
||||
#define CLK_BR 3
|
||||
#define CLK_SPIFL 4
|
||||
#define CLK_PERI0 5
|
||||
#define CLK_PERI1 6
|
||||
#define CLK_STC0 7
|
||||
#define CLK_STC_AV0 8
|
||||
#define CLK_STC_AV1 9
|
||||
#define CLK_STC_AV2 10
|
||||
#define CLK_UA0 11
|
||||
#define CLK_UA1 12
|
||||
#define CLK_UA2 13
|
||||
#define CLK_UA3 14
|
||||
#define CLK_UA4 15
|
||||
#define CLK_HWUA 16
|
||||
#define CLK_DDC0 17
|
||||
#define CLK_UADMA 18
|
||||
#define CLK_CBDMA0 19
|
||||
#define CLK_CBDMA1 20
|
||||
#define CLK_SPI_COMBO_0 21
|
||||
#define CLK_SPI_COMBO_1 22
|
||||
#define CLK_SPI_COMBO_2 23
|
||||
#define CLK_SPI_COMBO_3 24
|
||||
#define CLK_AUD 25
|
||||
#define CLK_USBC0 26
|
||||
#define CLK_USBC1 27
|
||||
#define CLK_UPHY0 28
|
||||
#define CLK_UPHY1 29
|
||||
#define CLK_I2CM0 30
|
||||
#define CLK_I2CM1 31
|
||||
#define CLK_I2CM2 32
|
||||
#define CLK_I2CM3 33
|
||||
#define CLK_PMC 34
|
||||
#define CLK_CARD_CTL0 35
|
||||
#define CLK_CARD_CTL1 36
|
||||
#define CLK_CARD_CTL4 37
|
||||
#define CLK_BCH 38
|
||||
#define CLK_DDFCH 39
|
||||
#define CLK_CSIIW0 40
|
||||
#define CLK_CSIIW1 41
|
||||
#define CLK_MIPICSI0 42
|
||||
#define CLK_MIPICSI1 43
|
||||
#define CLK_HDMI_TX 44
|
||||
#define CLK_VPOST 45
|
||||
#define CLK_TGEN 46
|
||||
#define CLK_DMIX 47
|
||||
#define CLK_TCON 48
|
||||
#define CLK_GPIO 49
|
||||
#define CLK_MAILBOX 50
|
||||
#define CLK_SPIND 51
|
||||
#define CLK_I2C2CBUS 52
|
||||
#define CLK_SEC 53
|
||||
#define CLK_DVE 54
|
||||
#define CLK_GPOST0 55
|
||||
#define CLK_OSD0 56
|
||||
#define CLK_DISP_PWM 57
|
||||
#define CLK_UADBG 58
|
||||
#define CLK_FIO_CTL 59
|
||||
#define CLK_FPGA 60
|
||||
#define CLK_L2SW 61
|
||||
#define CLK_ICM 62
|
||||
#define CLK_AXI_GLOBAL 63
|
||||
|
||||
/* plls */
|
||||
#define PLL_A 64
|
||||
#define PLL_E 65
|
||||
#define PLL_E_2P5 66
|
||||
#define PLL_E_25 67
|
||||
#define PLL_E_112P5 68
|
||||
#define PLL_F 69
|
||||
#define PLL_TV 70
|
||||
#define PLL_TV_A 71
|
||||
#define PLL_SYS 72
|
||||
|
||||
#define CLK_MAX 73
|
||||
|
||||
#endif
|
||||
87
include/dt-bindings/reset/sunplus,sp7021-reset.h
Normal file
87
include/dt-bindings/reset/sunplus,sp7021-reset.h
Normal file
|
|
@ -0,0 +1,87 @@
|
|||
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
|
||||
/*
|
||||
* Copyright (C) Sunplus Technology Co., Ltd.
|
||||
* All rights reserved.
|
||||
*/
|
||||
#ifndef _DT_BINDINGS_RST_SUNPLUS_SP7021_H
|
||||
#define _DT_BINDINGS_RST_SUNPLUS_SP7021_H
|
||||
|
||||
#define RST_SYSTEM 0
|
||||
#define RST_RTC 1
|
||||
#define RST_IOCTL 2
|
||||
#define RST_IOP 3
|
||||
#define RST_OTPRX 4
|
||||
#define RST_NOC 5
|
||||
#define RST_BR 6
|
||||
#define RST_RBUS_L00 7
|
||||
#define RST_SPIFL 8
|
||||
#define RST_SDCTRL0 9
|
||||
#define RST_PERI0 10
|
||||
#define RST_A926 11
|
||||
#define RST_UMCTL2 12
|
||||
#define RST_PERI1 13
|
||||
#define RST_DDR_PHY0 14
|
||||
#define RST_ACHIP 15
|
||||
#define RST_STC0 16
|
||||
#define RST_STC_AV0 17
|
||||
#define RST_STC_AV1 18
|
||||
#define RST_STC_AV2 19
|
||||
#define RST_UA0 20
|
||||
#define RST_UA1 21
|
||||
#define RST_UA2 22
|
||||
#define RST_UA3 23
|
||||
#define RST_UA4 24
|
||||
#define RST_HWUA 25
|
||||
#define RST_DDC0 26
|
||||
#define RST_UADMA 27
|
||||
#define RST_CBDMA0 28
|
||||
#define RST_CBDMA1 29
|
||||
#define RST_SPI_COMBO_0 30
|
||||
#define RST_SPI_COMBO_1 31
|
||||
#define RST_SPI_COMBO_2 32
|
||||
#define RST_SPI_COMBO_3 33
|
||||
#define RST_AUD 34
|
||||
#define RST_USBC0 35
|
||||
#define RST_USBC1 36
|
||||
#define RST_UPHY0 37
|
||||
#define RST_UPHY1 38
|
||||
#define RST_I2CM0 39
|
||||
#define RST_I2CM1 40
|
||||
#define RST_I2CM2 41
|
||||
#define RST_I2CM3 42
|
||||
#define RST_PMC 43
|
||||
#define RST_CARD_CTL0 44
|
||||
#define RST_CARD_CTL1 45
|
||||
#define RST_CARD_CTL4 46
|
||||
#define RST_BCH 47
|
||||
#define RST_DDFCH 48
|
||||
#define RST_CSIIW0 49
|
||||
#define RST_CSIIW1 50
|
||||
#define RST_MIPICSI0 51
|
||||
#define RST_MIPICSI1 52
|
||||
#define RST_HDMI_TX 53
|
||||
#define RST_VPOST 54
|
||||
#define RST_TGEN 55
|
||||
#define RST_DMIX 56
|
||||
#define RST_TCON 57
|
||||
#define RST_INTERRUPT 58
|
||||
#define RST_RGST 59
|
||||
#define RST_GPIO 60
|
||||
#define RST_RBUS_TOP 61
|
||||
#define RST_MAILBOX 62
|
||||
#define RST_SPIND 63
|
||||
#define RST_I2C2CBUS 64
|
||||
#define RST_SEC 65
|
||||
#define RST_DVE 66
|
||||
#define RST_GPOST0 67
|
||||
#define RST_OSD0 68
|
||||
#define RST_DISP_PWM 69
|
||||
#define RST_UADBG 70
|
||||
#define RST_DUMMY_MASTER 71
|
||||
#define RST_FIO_CTL 72
|
||||
#define RST_FPGA 73
|
||||
#define RST_L2SW 74
|
||||
#define RST_ICM 75
|
||||
#define RST_AXI_GLOBAL 76
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue