From 191776b96a381b5d2b8d3f90c1c02b3e4779e5f7 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Thu, 16 Aug 2018 14:05:28 +0100 Subject: target/arm: add "cortex-m0" CPU model MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Define a "cortex-m0" ARMv6-M CPU model. Most of the register reset values set by other CPU models are not relevant for the cut-down ARMv6-M architecture. Signed-off-by: Stefan Hajnoczi Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé Message-id: 20180814162739.11814-3-stefanha@redhat.com Signed-off-by: Peter Maydell --- target/arm/cpu.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'target/arm/cpu.c') diff --git a/target/arm/cpu.c b/target/arm/cpu.c index a4d46db13a..258ba6dcaa 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -1255,6 +1255,15 @@ static void arm11mpcore_initfn(Object *obj) cpu->reset_auxcr = 1; } +static void cortex_m0_initfn(Object *obj) +{ + ARMCPU *cpu = ARM_CPU(obj); + set_feature(&cpu->env, ARM_FEATURE_V6); + set_feature(&cpu->env, ARM_FEATURE_M); + + cpu->midr = 0x410cc200; +} + static void cortex_m3_initfn(Object *obj) { ARMCPU *cpu = ARM_CPU(obj); @@ -1845,6 +1854,8 @@ static const ARMCPUInfo arm_cpus[] = { { .name = "arm1136", .initfn = arm1136_initfn }, { .name = "arm1176", .initfn = arm1176_initfn }, { .name = "arm11mpcore", .initfn = arm11mpcore_initfn }, + { .name = "cortex-m0", .initfn = cortex_m0_initfn, + .class_init = arm_v7m_class_init }, { .name = "cortex-m3", .initfn = cortex_m3_initfn, .class_init = arm_v7m_class_init }, { .name = "cortex-m4", .initfn = cortex_m4_initfn, -- cgit v1.2.3