[Qemu-devel] [RFC v2 1/2] target-arm: Prepare support for Cortex-R4

[Andreas Färber]

Glue "cortex-r4" to r1p4, the latest available TRM.
Set MPU and Thumb division feature bit.

Signed-off-by: Andreas Färber <address@hidden>
---
 target-arm/cpu.c |   24 ++++++++++++++++++++++++
 1 Datei geändert, 24 Zeilen hinzugefügt(+)

diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index b00f5fa..6726498 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -382,6 +382,29 @@ static void cortex_m3_initfn(Object *obj)
     cpu->midr = 0x410fc231;
 }
 
+static void cortex_r4_initfn(Object *obj)
+{
+    ARMCPU *cpu = ARM_CPU(obj);
+    set_feature(&cpu->env, ARM_FEATURE_V7);
+    set_feature(&cpu->env, ARM_FEATURE_THUMB_DIV);
+    set_feature(&cpu->env, ARM_FEATURE_MPU);
+    cpu->midr = 0x411FC144; /* r1p4 */
+    cpu->id_pfr0 = 0x0131;
+    cpu->id_pfr1 = 0x001;
+    cpu->id_dfr0 = 0x010400;
+    cpu->id_afr0 = 0x0;
+    cpu->id_mmfr0 = 0x0210030;
+    cpu->id_mmfr1 = 0x00000000;
+    cpu->id_mmfr2 = 0x01200000;
+    cpu->id_mmfr3 = 0x0211;
+    cpu->id_isar0 = 0x1101111;
+    cpu->id_isar1 = 0x13112111;
+    cpu->id_isar2 = 0x21232131;
+    cpu->id_isar3 = 0x01112131;
+    cpu->id_isar4 = 0x0010142;
+    cpu->id_isar5 = 0x0;
+}
+
 static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
     { .name = "L2LOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 0,
       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
@@ -737,6 +760,7 @@ static const ARMCPUInfo arm_cpus[] = {
     { .name = "arm1176",     .initfn = arm1176_initfn },
     { .name = "arm11mpcore", .initfn = arm11mpcore_initfn },
     { .name = "cortex-m3",   .initfn = cortex_m3_initfn },
+    { .name = "cortex-r4",   .initfn = cortex_r4_initfn },
     { .name = "cortex-a8",   .initfn = cortex_a8_initfn },
     { .name = "cortex-a9",   .initfn = cortex_a9_initfn },
     { .name = "cortex-a15",  .initfn = cortex_a15_initfn },
-- 
1.7.10.4