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Commit 7bffa14c authored by Brendan Higgins's avatar Brendan Higgins Committed by Arnd Bergmann
Browse files

arm: npcm: add basic support for Nuvoton BMCs 



Adds basic support for the Nuvoton NPCM750 BMC.

Signed-off-by: default avatarBrendan Higgins <brendanhiggins@google.com>
Reviewed-by: default avatarTomer Maimon <tmaimon77@gmail.com>
Reviewed-by: default avatarAvi Fishman <avifishman70@gmail.com>
Tested-by: default avatarTomer Maimon <tmaimon77@gmail.com>
Tested-by: default avatarAvi Fishman <avifishman70@gmail.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 6a498e06

arch/arm/Kconfig

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@@ -779,6 +779,8 @@ source "arch/arm/mach-netx/Kconfig" 


source "arch/arm/mach-nomadik/Kconfig"



source "arch/arm/mach-npcm/Kconfig"



source "arch/arm/mach-nspire/Kconfig"



source "arch/arm/plat-omap/Kconfig"

arch/arm/Makefile

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@@ -196,6 +196,7 @@ machine-$(CONFIG_ARCH_MEDIATEK) += mediatek 
machine-$(CONFIG_ARCH_MXS)		+= mxs

machine-$(CONFIG_ARCH_NETX)		+= netx

machine-$(CONFIG_ARCH_NOMADIK)		+= nomadik

machine-$(CONFIG_ARCH_NPCM)		+= npcm

machine-$(CONFIG_ARCH_NSPIRE)		+= nspire

machine-$(CONFIG_ARCH_OXNAS)		+= oxnas

machine-$(CONFIG_ARCH_OMAP1)		+= omap1

arch/arm/mach-npcm/Kconfig

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menuconfig ARCH_NPCM

	bool "Nuvoton NPCM Architecture"

	select ARCH_REQUIRE_GPIOLIB

	select USE_OF

	select PINCTRL

	select PINCTRL_NPCM7XX



if ARCH_NPCM



comment "NPCM7XX CPU type"



config ARCH_NPCM750

	depends on ARCH_NPCM && ARCH_MULTI_V7

	bool "Support for NPCM750 BMC CPU (Poleg)"

	select CACHE_L2X0

	select CPU_V7

	select ARM_GIC

	select HAVE_SMP

	select SMP

	select SMP_ON_UP

	select HAVE_ARM_SCU

	select HAVE_ARM_TWD if SMP

	select ARM_ERRATA_720789

	select ARM_ERRATA_754322

	select ARM_ERRATA_764369

	select ARM_ERRATA_794072

	select PL310_ERRATA_588369

	select PL310_ERRATA_727915

	select USB_EHCI_ROOT_HUB_TT

	select USB_ARCH_HAS_HCD

	select USB_ARCH_HAS_EHCI

	select USB_EHCI_HCD

	select USB_ARCH_HAS_OHCI

	select USB_OHCI_HCD

	select USB

	select FIQ

	select CPU_USE_DOMAINS

	select GENERIC_CLOCKEVENTS

	select CLKDEV_LOOKUP

	select COMMON_CLK if OF

	select NPCM750_TIMER

	select MFD_SYSCON

	help

	  Support for NPCM750 BMC CPU (Poleg).



	  Nuvoton NPCM750 BMC based on the Cortex A9.



endif

arch/arm/mach-npcm/Makefile

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AFLAGS_headsmp.o		+= -march=armv7-a



obj-$(CONFIG_ARCH_NPCM750)	+= npcm7xx.o platsmp.o headsmp.o

arch/arm/mach-npcm/headsmp.S

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// SPDX-License-Identifier: GPL-2.0

// Copyright (c) 2018 Nuvoton Technology corporation.

// Copyright 2018 Google, Inc.



#include <linux/linkage.h>

#include <linux/init.h>

#include <asm/assembler.h>



/*

 * The boot ROM does not start secondary CPUs in SVC mode, so we need to do that

 * here.

 */

ENTRY(npcm7xx_secondary_startup)

	safe_svcmode_maskall r0



	b	secondary_startup

ENDPROC(npcm7xx_secondary_startup)