Return to std.generic CVS log

Up to [cvs.NetBSD.org] / src / sys / arch / evbarm / conf

Provide generic start code that assumes the MMU is off and caches are
disabled as per the linux booting protocol for ARMv6 and ARMv7 boards.
u-boot image type should be changed to 'linux' for correct behaviour.

The new start code builds a minimal "bootstrap" L1PT with cached access
disabled and uses the same table for all processors.  AP startup is
performed in less steps and more code is written in C.

The bootstrap tables and stack are placed into an (orphaned) section
"_init_memory" which is given to uvm when it is no longer used.

Various kernels have been converted to use this code and tested.  Some
boards were provided by TNF. Thanks!

The GENERIC kernel now boots on boards using the TEGRA, SUNXI and EXYNOS
kernels. The GENERIC kernel will also work on RPI2 using u-boot.

Thanks to martin@ and aymeric@ for testing on parallella and nanosoc
respectively

#	$NetBSD: std.generic,v 1.3 2018/10/18 09:01:54 skrll Exp $
#
# 	generic NetBSD/evbarm with FDT support

machine		evbarm arm
include		"conf/std"
include		"arch/arm/conf/std.arm"		# arch standard options

options 	EXEC_ELF32
options 	EXEC_SCRIPT

# Architecture opions
options 	ARM32

options 	ARM_GENERIC_TODR
options 	ARM_HAS_VBAR
options 	ARM_INTR_IMPL="<arch/arm/fdt/fdt_intr.h>"
options 	DRAM_BLOCKS=256
options 	EVBARM_BOARDTYPE="evbarm"
options 	FDT				# Flattened Device Tree support
options 	FPU_VFP
options 	MODULAR
options 	MODULAR_DEFAULT_AUTOLOAD
options 	PCI_NETBSD_CONFIGURE
options 	TPIDRPRW_IS_CURCPU
options 	__BUS_SPACE_HAS_STREAM_METHODS
options 	__HAVE_CPU_COUNTER
options 	__HAVE_CPU_UAREA_ALLOC_IDLELWP
options 	__HAVE_GENERIC_START
options 	__HAVE_GENERIC_CPU_INITCLOCKS
options 	__HAVE_FAST_SOFTINTS		# should be in types.h
options 	__HAVE_PCI_CONF_HOOK

makeoptions	BOARDMKFRAG="${THISARM}/conf/mk.generic"

# The physical address is chosen by u-boot and determined by armv6_start.S.
# The 64 byte offset is due to u-boot header.
makeoptions	KERNEL_BASE_PHYS="0x00000040"
makeoptions	KERNEL_BASE_VIRT="0x80000040"

# General options
options 	CHILD_MAX=1024	# 160 is too few
options 	OPEN_MAX=1024	# 128 is too few