diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-26 12:25:29 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-26 12:25:29 -0700 |
commit | 6b0fbc540c2fc34e55828ef9918cc61528071a01 (patch) | |
tree | 2c15cde073a3fabe11f908bdeb8c235617157525 /arch/arm | |
parent | f7857bf3745e9ede6367a8ff89c1c4f308bfd914 (diff) | |
parent | 39b95079f68cf17888a4cee93ad3c4acc3854b38 (diff) | |
download | linux-6b0fbc540c2fc34e55828ef9918cc61528071a01.tar.bz2 |
Merge tag 'arm-newsoc-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM Nuvoton WPCM450 platform support from Arnd Bergmann:
"The Nuvoton WPCM450 BMC is an older chip based on the ARM926 CPU core
that remains in use on Supermicro X9 server boards among others.
Support gets added for a particular server board using this SoC along
with the basic platform bringup.
As the platform is a predecessor to the npcm7xx platform we already
support, it is added to the same directory, despite using a different
name. It also seems to be related to the older w90x900/nuc9xx platform
that was removed last year"
* tag 'arm-newsoc-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: config: Add WPCM to multi v5
MAINTAINERS: Add entry for Nuvoton WPCM450
ARM: dts: Add devicetree for Supermicro X9SCi-LN4F based on WPCM450
ARM: dts: Add devicetree for Nuvoton WPCM450 BMC chip
watchdog: npcm: Add support for WPCM450
ARM: npcm: Introduce Nuvoton WPCM450 SoC
dt-bindings: watchdog: npcm: Add nuvoton,wpcm450-wdt
dt-bindings: arm: npcm: Add nuvoton,wpcm450 compatible string
dt-bindings: vendor-prefixes: Add Supermicro
ARM: dts: Add board-specific compatible string to npcm750-evb devicetree
dt-bindings: arm: Convert nuvoton,npcm750 binding to YAML
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/boot/dts/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 2 | ||||
-rw-r--r-- | arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 40 | ||||
-rw-r--r-- | arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 76 | ||||
-rw-r--r-- | arch/arm/configs/multi_v5_defconfig | 3 | ||||
-rw-r--r-- | arch/arm/mach-npcm/Kconfig | 12 | ||||
-rw-r--r-- | arch/arm/mach-npcm/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-npcm/wpcm450.c | 13 |
8 files changed, 147 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index b945d6f14aa7..f8f09c5066e7 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -333,6 +333,8 @@ dtb-$(CONFIG_ARCH_LPC18XX) += \ dtb-$(CONFIG_ARCH_LPC32XX) += \ lpc3250-ea3250.dtb \ lpc3250-phy3250.dtb +dtb-$(CONFIG_ARCH_WPCM450) += \ + nuvoton-wpcm450-supermicro-x9sci-ln4f.dtb dtb-$(CONFIG_ARCH_NPCM7XX) += \ nuvoton-npcm730-gsj.dtb \ nuvoton-npcm730-gbs.dtb \ diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts index 9f13d08f5804..dea3dbc4a6a5 100644 --- a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts +++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts @@ -9,7 +9,7 @@ / { model = "Nuvoton npcm750 Development Board (Device Tree)"; - compatible = "nuvoton,npcm750"; + compatible = "nuvoton,npcm750-evb", "nuvoton,npcm750"; aliases { ethernet2 = &gmac0; diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts new file mode 100644 index 000000000000..83f27fbf4e93 --- /dev/null +++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +// Copyright 2021 Jonathan Neuschäfer + +/dts-v1/; + +/* The last 16 MiB are dedicated to the GPU */ +/memreserve/ 0x07000000 0x01000000; + +#include "nuvoton-wpcm450.dtsi" + +/ { + model = "Supermicro X9SCi-LN4F BMC"; + compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450"; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + memory@0 { + device_type = "memory"; + reg = <0 0x08000000>; /* 128 MiB */ + }; +}; + +&serial0 { + /* + * Debug serial port. TX is exposed on the right pad of unpopulated + * resistor R1247, RX on the right pad of R1162. + */ + status = "okay"; +}; + +&serial1 { + /* "Serial over LAN" port. Connected to ttyS2 of the host system. */ + status = "okay"; +}; + +&watchdog0 { + status = "okay"; +}; diff --git a/arch/arm/boot/dts/nuvoton-wpcm450.dtsi b/arch/arm/boot/dts/nuvoton-wpcm450.dtsi new file mode 100644 index 000000000000..d7cbeb187484 --- /dev/null +++ b/arch/arm/boot/dts/nuvoton-wpcm450.dtsi @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +// Copyright 2021 Jonathan Neuschäfer + +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + compatible = "nuvoton,wpcm450"; + #address-cells = <1>; + #size-cells = <1>; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + compatible = "arm,arm926ej-s"; + device_type = "cpu"; + reg = <0>; + }; + }; + + clk24m: clock-24mhz { + /* 24 MHz dummy clock */ + compatible = "fixed-clock"; + clock-frequency = <24000000>; + #clock-cells = <0>; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&aic>; + ranges; + + serial0: serial@b8000000 { + compatible = "nuvoton,wpcm450-uart"; + reg = <0xb8000000 0x20>; + reg-shift = <2>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk24m>; + status = "disabled"; + }; + + serial1: serial@b8000100 { + compatible = "nuvoton,wpcm450-uart"; + reg = <0xb8000100 0x20>; + reg-shift = <2>; + interrupts = <8 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk24m>; + status = "disabled"; + }; + + timer0: timer@b8001000 { + compatible = "nuvoton,wpcm450-timer"; + interrupts = <12 IRQ_TYPE_LEVEL_HIGH>; + reg = <0xb8001000 0x1c>; + clocks = <&clk24m>; + }; + + watchdog0: watchdog@b800101c { + compatible = "nuvoton,wpcm450-wdt"; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH>; + reg = <0xb800101c 0x4>; + clocks = <&clk24m>; + status = "disabled"; + }; + + aic: interrupt-controller@b8002000 { + compatible = "nuvoton,wpcm450-aic"; + reg = <0xb8002000 0x1000>; + interrupt-controller; + #interrupt-cells = <2>; + }; + }; +}; diff --git a/arch/arm/configs/multi_v5_defconfig b/arch/arm/configs/multi_v5_defconfig index 9f862b21b40a..80a3ae02d759 100644 --- a/arch/arm/configs/multi_v5_defconfig +++ b/arch/arm/configs/multi_v5_defconfig @@ -33,6 +33,8 @@ CONFIG_SOC_IMX25=y CONFIG_SOC_IMX27=y CONFIG_ARCH_MVEBU=y CONFIG_MACH_KIRKWOOD=y +CONFIG_ARCH_NPCM=y +CONFIG_ARCH_WPCM450=y CONFIG_ARCH_ORION5X=y CONFIG_MACH_DB88F5281=y CONFIG_MACH_RD88F5182=y @@ -178,6 +180,7 @@ CONFIG_THERMAL=y CONFIG_KIRKWOOD_THERMAL=y CONFIG_AT91SAM9X_WATCHDOG=y CONFIG_ORION_WATCHDOG=y +CONFIG_NPCM7XX_WATCHDOG=y CONFIG_IMX2_WDT=y CONFIG_MFD_ATMEL_HLCDC=y # CONFIG_ABX500_CORE is not set diff --git a/arch/arm/mach-npcm/Kconfig b/arch/arm/mach-npcm/Kconfig index 7f7002dc2b21..658c8efb4ca1 100644 --- a/arch/arm/mach-npcm/Kconfig +++ b/arch/arm/mach-npcm/Kconfig @@ -1,11 +1,21 @@ # SPDX-License-Identifier: GPL-2.0-only menuconfig ARCH_NPCM bool "Nuvoton NPCM Architecture" - depends on ARCH_MULTI_V7 + depends on ARCH_MULTI_V5 || ARCH_MULTI_V7 select PINCTRL if ARCH_NPCM +config ARCH_WPCM450 + bool "Support for WPCM450 BMC (Hermon)" + depends on ARCH_MULTI_V5 + select CPU_ARM926T + select NPCM7XX_TIMER + help + General support for WPCM450 BMC (Hermon). + + Winbond/Nuvoton WPCM450 BMC based on the ARM926EJ-S. + config ARCH_NPCM7XX bool "Support for NPCM7xx BMC (Poleg)" depends on ARCH_MULTI_V7 diff --git a/arch/arm/mach-npcm/Makefile b/arch/arm/mach-npcm/Makefile index 1bc3a70bfab8..8d61fcd42fb1 100644 --- a/arch/arm/mach-npcm/Makefile +++ b/arch/arm/mach-npcm/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only AFLAGS_headsmp.o += -march=armv7-a +obj-$(CONFIG_ARCH_WPCM450) += wpcm450.o obj-$(CONFIG_ARCH_NPCM7XX) += npcm7xx.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o diff --git a/arch/arm/mach-npcm/wpcm450.c b/arch/arm/mach-npcm/wpcm450.c new file mode 100644 index 000000000000..f17b3dab45af --- /dev/null +++ b/arch/arm/mach-npcm/wpcm450.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright 2021 Jonathan Neuschäfer + +#include <asm/mach/arch.h> + +static const char *const wpcm450_dt_match[] = { + "nuvoton,wpcm450", + NULL +}; + +DT_MACHINE_START(WPCM450_DT, "WPCM450 chip") + .dt_compat = wpcm450_dt_match, +MACHINE_END |