From 4054fd71821a7b06792b1149b53d5b6bf6281006 Mon Sep 17 00:00:00 2001 From: William Zhang Date: Mon, 1 Aug 2022 11:39:24 -0700 Subject: arm: bcmbca: add bcm6756 SoC support BCM6756 is an ARM A7 based WLAN Gateway and Access Point Broadband SoC. It is part of the BCA(Broadband Carrier Access origin) chipset family so it's added under ARCH_BCMBCA platform. This initial support includes a bare-bone implementation and dts with CPU subsystem, memory and ARM PL011 uart. This SoC is supported in the linux-next git repository so the dts and dtsi files are copied from linux. The u-boot image can be loaded from flash or network to the entry point address in the memory and boot from there. Signed-off-by: William Zhang --- arch/arm/dts/Makefile | 2 + arch/arm/dts/bcm6756.dtsi | 130 ++++++++++++++++++++++++++++++++++ arch/arm/dts/bcm96756.dts | 30 ++++++++ arch/arm/mach-bcmbca/Kconfig | 8 +++ arch/arm/mach-bcmbca/Makefile | 1 + arch/arm/mach-bcmbca/bcm6756/Kconfig | 17 +++++ arch/arm/mach-bcmbca/bcm6756/Makefile | 5 ++ 7 files changed, 193 insertions(+) create mode 100644 arch/arm/dts/bcm6756.dtsi create mode 100644 arch/arm/dts/bcm96756.dts create mode 100644 arch/arm/mach-bcmbca/bcm6756/Kconfig create mode 100644 arch/arm/mach-bcmbca/bcm6756/Makefile (limited to 'arch/arm') diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index d0996a11fc..2545575db6 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -1184,6 +1184,8 @@ dtb-$(CONFIG_BCM47622) += \ bcm947622.dtb dtb-$(CONFIG_BCM63178) += \ bcm963178.dtb +dtb-$(CONFIG_BCM6756) += \ + bcm96756.dtb dtb-$(CONFIG_BCM6846) += \ bcm96846.dtb dtb-$(CONFIG_BCM6878) += \ diff --git a/arch/arm/dts/bcm6756.dtsi b/arch/arm/dts/bcm6756.dtsi new file mode 100644 index 0000000000..ce1b59faf8 --- /dev/null +++ b/arch/arm/dts/bcm6756.dtsi @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright 2022 Broadcom Ltd. + */ + +#include +#include + +/ { + compatible = "brcm,bcm6756", "brcm,bcmbca"; + #address-cells = <1>; + #size-cells = <1>; + + interrupt-parent = <&gic>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + CA7_0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x0>; + next-level-cache = <&L2_0>; + enable-method = "psci"; + }; + + CA7_1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x1>; + next-level-cache = <&L2_0>; + enable-method = "psci"; + }; + + CA7_2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x2>; + next-level-cache = <&L2_0>; + enable-method = "psci"; + }; + + CA7_3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x3>; + next-level-cache = <&L2_0>; + enable-method = "psci"; + }; + + L2_0: l2-cache0 { + compatible = "cache"; + }; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = , + , + , + ; + arm,cpu-registers-not-fw-configured; + }; + + pmu: pmu { + compatible = "arm,cortex-a7-pmu"; + interrupts = , + , + , + ; + interrupt-affinity = <&CA7_0>, <&CA7_1>, + <&CA7_2>, <&CA7_3>; + }; + + clocks: clocks { + periph_clk: periph-clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <200000000>; + }; + + uart_clk: uart-clk { + compatible = "fixed-factor-clock"; + #clock-cells = <0>; + clocks = <&periph_clk>; + clock-div = <4>; + clock-mult = <1>; + }; + }; + + psci { + compatible = "arm,psci-0.2"; + method = "smc"; + }; + + axi@81000000 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x81000000 0x8000>; + + gic: interrupt-controller@1000 { + compatible = "arm,cortex-a7-gic"; + #interrupt-cells = <3>; + interrupt-controller; + interrupts = ; + reg = <0x1000 0x1000>, + <0x2000 0x2000>, + <0x4000 0x2000>, + <0x6000 0x2000>; + }; + }; + + bus@ff800000 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0xff800000 0x800000>; + + uart0: serial@12000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x12000 0x1000>; + interrupts = ; + clocks = <&uart_clk>, <&uart_clk>; + clock-names = "uartclk", "apb_pclk"; + status = "disabled"; + }; + }; +}; diff --git a/arch/arm/dts/bcm96756.dts b/arch/arm/dts/bcm96756.dts new file mode 100644 index 0000000000..9a4a87ba9c --- /dev/null +++ b/arch/arm/dts/bcm96756.dts @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright 2019 Broadcom Ltd. + */ + +/dts-v1/; + +#include "bcm6756.dtsi" + +/ { + model = "Broadcom BCM96756 Reference Board"; + compatible = "brcm,bcm96756", "brcm,bcm6756", "brcm,bcmbca"; + + aliases { + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x08000000>; + }; +}; + +&uart0 { + status = "okay"; +}; diff --git a/arch/arm/mach-bcmbca/Kconfig b/arch/arm/mach-bcmbca/Kconfig index 5b67975c45..f3104116b3 100644 --- a/arch/arm/mach-bcmbca/Kconfig +++ b/arch/arm/mach-bcmbca/Kconfig @@ -19,6 +19,13 @@ config BCM63178 select DM_SERIAL select PL01X_SERIAL +config BCM6756 + bool "Support for Broadcom 6756 Family" + select SYS_ARCH_TIMER + select CPU_V7A + select DM_SERIAL + select PL01X_SERIAL + config BCM6846 bool "Support for Broadcom 6846 Family" select SYS_ARCH_TIMER @@ -35,6 +42,7 @@ config BCM6878 source "arch/arm/mach-bcmbca/bcm47622/Kconfig" source "arch/arm/mach-bcmbca/bcm63178/Kconfig" +source "arch/arm/mach-bcmbca/bcm6756/Kconfig" source "arch/arm/mach-bcmbca/bcm6846/Kconfig" source "arch/arm/mach-bcmbca/bcm6878/Kconfig" diff --git a/arch/arm/mach-bcmbca/Makefile b/arch/arm/mach-bcmbca/Makefile index 87710c66f9..5eb483c167 100644 --- a/arch/arm/mach-bcmbca/Makefile +++ b/arch/arm/mach-bcmbca/Makefile @@ -5,5 +5,6 @@ obj-$(CONFIG_BCM47622) += bcm47622/ obj-$(CONFIG_BCM63178) += bcm63178/ +obj-$(CONFIG_BCM6756) += bcm6756/ obj-$(CONFIG_BCM6846) += bcm6846/ obj-$(CONFIG_BCM6878) += bcm6878/ diff --git a/arch/arm/mach-bcmbca/bcm6756/Kconfig b/arch/arm/mach-bcmbca/bcm6756/Kconfig new file mode 100644 index 0000000000..c83dcd0f3e --- /dev/null +++ b/arch/arm/mach-bcmbca/bcm6756/Kconfig @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# (C) Copyright 2022 Broadcom Ltd +# + +if BCM6756 + +config TARGET_BCM96756 + bool "Broadcom 6756 Reference Board" + depends on ARCH_BCMBCA + +config SYS_SOC + default "bcm6756" + +source "board/broadcom/bcmbca/Kconfig" + +endif diff --git a/arch/arm/mach-bcmbca/bcm6756/Makefile b/arch/arm/mach-bcmbca/bcm6756/Makefile new file mode 100644 index 0000000000..beb979af75 --- /dev/null +++ b/arch/arm/mach-bcmbca/bcm6756/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# (C) Copyright 2022 Broadcom Ltd +# +obj- += dummy.o -- cgit v1.2.3