DESCRIPTION="
ARM v4, with thumb support, little endian, EABI, soft float.

This is the lowest-end arm instruction set that can support EABI, the current
binary ABI documented by ARM.  It's used used in 920t processors (such as the
OpenMoko Freerunner).

This is \"the i386 of ARM\", an extremely generic low-end arm image that
should run on any arm hardware still in use today (except ARMv7M, which
is arm in name only).
"

KARCH=arm
KERNEL_PATH=arch/${KARCH}/boot/zImage
GCC_FLAGS="--with-march=armv4t --with-float=soft"
BINUTILS_FLAGS=
QEMU_TEST=$KARCH

CROSS_TARGET=armv4tl-unknown-linux-gnueabi

ROOT=sda
CONSOLE=ttyAMA0

# This is every bit as ugly as it looks, because it's for gcc.
export target_cpu_cname=arm9tdmi

# Gentoo from Scratch
GFS_CHOST="$CROSS_TARGET"
GFS_ARCH="$KARCH"

UCLIBC_CONFIG="
TARGET_arm=y
CONFIG_ARM_EABI=y
ARCH_WANTS_LITTLE_ENDIAN=y
DOPIC=y
"

LINUX_CONFIG="

# Processor config

# QEMU patch: http://www.mail-archive.com/qemu-devel@nongnu.org/msg19370.html
# and QEMU option '-cpu arm920t' enable CONFIG_CPU_ARM920T=y which is the
# processor that actually _needs_ this code.  But until then, qemu can only
# emulate an armv5 CPU...

CONFIG_CPU_ARM926T=y
CONFIG_MMU=y
CONFIG_VFP=y
CONFIG_ARM_THUMB=y
CONFIG_AEABI=y

# Versatile board

CONFIG_ARCH_VERSATILE_PB=y
CONFIG_PCI_LEGACY=y
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
CONFIG_RTC_DRV_PL031=y
CONFIG_SCSI_SYM53C8XX_2=y
CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
CONFIG_SCSI_SYM53C8XX_MMIO=y
"

emulator_command()
{
  echo qemu-system-arm -M versatilepb $(qemu_defaults "$@") \
    -net nic,model=rtl8139 -net user
}