linux-kernel - [PATCH v15 08/10] ARM: sunplus: Add initial support for Sunplus SP7021 SoC

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Message-Id: <08c18c75009d2792b5f8c52df70750b3c4e4eb2f.1652329411.git.qinjian@cqplus1.com>
Date:   Thu, 12 May 2022 14:31:03 +0800
From:   Qin Jian <qinjian@...lus1.com>
To:     sboyd@...nel.org
Cc:     krzysztof.kozlowski@...aro.org, robh+dt@...nel.org,
        mturquette@...libre.com, tglx@...utronix.de, maz@...nel.org,
        p.zabel@...gutronix.de, linux@...linux.org.uk, arnd@...db.de,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        Qin Jian <qinjian@...lus1.com>
Subject: [PATCH v15 08/10] ARM: sunplus: Add initial support for Sunplus SP7021 SoC

This patch aims to add an initial support for Sunplus SP7021 SoC.

Reviewed-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Qin Jian <qinjian@...lus1.com>
---
 MAINTAINERS                    |  1 +
 arch/arm/Kconfig               |  2 ++
 arch/arm/Makefile              |  1 +
 arch/arm/mach-sunplus/Kconfig  | 27 +++++++++++++++++++++++++++
 arch/arm/mach-sunplus/Makefile |  9 +++++++++
 arch/arm/mach-sunplus/sp7021.c | 16 ++++++++++++++++
 6 files changed, 56 insertions(+)
 create mode 100644 arch/arm/mach-sunplus/Kconfig
 create mode 100644 arch/arm/mach-sunplus/Makefile
 create mode 100644 arch/arm/mach-sunplus/sp7021.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 762beec05..ad52b0a2d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2747,6 +2747,7 @@ F:	Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
 F:	Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml
 F:	Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
 F:	Documentation/devicetree/bindings/reset/sunplus,reset.yaml
+F:	arch/arm/mach-sunplus/
 F:	drivers/clk/clk-sp7021.c
 F:	drivers/irqchip/irq-sp7021-intc.c
 F:	drivers/reset/reset-sunplus.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4c97cb40e..1ee9a27a3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -693,6 +693,8 @@ source "arch/arm/mach-sti/Kconfig"
 
 source "arch/arm/mach-stm32/Kconfig"
 
+source "arch/arm/mach-sunplus/Kconfig"
+
 source "arch/arm/mach-sunxi/Kconfig"
 
 source "arch/arm/mach-tegra/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 77172d555..1e19d2f4b 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -216,6 +216,7 @@ machine-$(CONFIG_ARCH_RENESAS)	 	+= shmobile
 machine-$(CONFIG_ARCH_INTEL_SOCFPGA)	+= socfpga
 machine-$(CONFIG_ARCH_STI)		+= sti
 machine-$(CONFIG_ARCH_STM32)		+= stm32
+machine-$(CONFIG_ARCH_SUNPLUS)		+= sunplus
 machine-$(CONFIG_ARCH_SUNXI)		+= sunxi
 machine-$(CONFIG_ARCH_TEGRA)		+= tegra
 machine-$(CONFIG_ARCH_U8500)		+= ux500
diff --git a/arch/arm/mach-sunplus/Kconfig b/arch/arm/mach-sunplus/Kconfig
new file mode 100644
index 000000000..be20425c2
--- /dev/null
+++ b/arch/arm/mach-sunplus/Kconfig
@@ -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 (ex: I2C, SPI, SDIO,
+	  Ethernet and etc.), FPGA interface,  chip-to-chip bus.
+	  It is designed for industrial control.
diff --git a/arch/arm/mach-sunplus/Makefile b/arch/arm/mach-sunplus/Makefile
new file mode 100644
index 000000000..c902580a7
--- /dev/null
+++ b/arch/arm/mach-sunplus/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-$(CONFIG_SOC_SP7021)	+= sp7021.o
+
diff --git a/arch/arm/mach-sunplus/sp7021.c b/arch/arm/mach-sunplus/sp7021.c
new file mode 100644
index 000000000..774d0a5bd
--- /dev/null
+++ b/arch/arm/mach-sunplus/sp7021.c
@@ -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
-- 
2.33.1