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authorPeter Maydell <peter.maydell@linaro.org>2020-01-07 17:08:21 +0000
committerPeter Maydell <peter.maydell@linaro.org>2020-01-07 17:08:21 +0000
commit035eed4c0d257c905a556fa0f4865a0c077b4e7f (patch)
tree8ac776fc4c444da977909be32c5aa87f7d0e4b96 /target
parent973d306dd64bba7fc13f7e8b12ef43c089243d31 (diff)
parent18b6102e51bb317d25ee61b49b7b56702b79560c (diff)
Merge remote-tracking branch 'remotes/vivier/tags/q800-for-5.0-pull-request' into staging
m68k: fix CACR valid bits q800: add a fake mac rom reset (used by linux) fix and improve PRAM emulation # gpg: Signature made Tue 07 Jan 2020 13:25:50 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier/tags/q800-for-5.0-pull-request: target/m68k: only change valid bits in CACR q800: implement mac rom reset function for BIOS-less mode q800: add a block backend to the PRAM q800: fix mac_via RTC PRAM commands Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target')
-rw-r--r--target/m68k/cpu.c28
-rw-r--r--target/m68k/cpu.h5
-rw-r--r--target/m68k/helper.c12
3 files changed, 36 insertions, 9 deletions
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index e6596de29c..f276335faf 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -114,11 +114,9 @@ static void m68000_cpu_initfn(Object *obj)
m68k_set_feature(env, M68K_FEATURE_MOVEP);
}
-static void m68020_cpu_initfn(Object *obj)
+/* common features for 68020, 68030 and 68040 */
+static void m680x0_cpu_common(CPUM68KState *env)
{
- M68kCPU *cpu = M68K_CPU(obj);
- CPUM68KState *env = &cpu->env;
-
m68k_set_feature(env, M68K_FEATURE_M68000);
m68k_set_feature(env, M68K_FEATURE_USP);
m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
@@ -136,14 +134,31 @@ static void m68020_cpu_initfn(Object *obj)
m68k_set_feature(env, M68K_FEATURE_CHK2);
m68k_set_feature(env, M68K_FEATURE_MOVEP);
}
-#define m68030_cpu_initfn m68020_cpu_initfn
+
+static void m68020_cpu_initfn(Object *obj)
+{
+ M68kCPU *cpu = M68K_CPU(obj);
+ CPUM68KState *env = &cpu->env;
+
+ m680x0_cpu_common(env);
+ m68k_set_feature(env, M68K_FEATURE_M68020);
+}
+
+static void m68030_cpu_initfn(Object *obj)
+{
+ M68kCPU *cpu = M68K_CPU(obj);
+ CPUM68KState *env = &cpu->env;
+
+ m680x0_cpu_common(env);
+ m68k_set_feature(env, M68K_FEATURE_M68030);
+}
static void m68040_cpu_initfn(Object *obj)
{
M68kCPU *cpu = M68K_CPU(obj);
CPUM68KState *env = &cpu->env;
- m68020_cpu_initfn(obj);
+ m680x0_cpu_common(env);
m68k_set_feature(env, M68K_FEATURE_M68040);
}
@@ -166,6 +181,7 @@ static void m68060_cpu_initfn(Object *obj)
m68k_set_feature(env, M68K_FEATURE_BKPT);
m68k_set_feature(env, M68K_FEATURE_RTD);
m68k_set_feature(env, M68K_FEATURE_CHK2);
+ m68k_set_feature(env, M68K_FEATURE_M68060);
}
static void m5208_cpu_initfn(Object *obj)
diff --git a/target/m68k/cpu.h b/target/m68k/cpu.h
index 20de3c379a..11c71fa962 100644
--- a/target/m68k/cpu.h
+++ b/target/m68k/cpu.h
@@ -460,6 +460,10 @@ void do_m68k_semihosting(CPUM68KState *env, int nr);
enum m68k_features {
M68K_FEATURE_M68000,
+ M68K_FEATURE_M68020,
+ M68K_FEATURE_M68030,
+ M68K_FEATURE_M68040,
+ M68K_FEATURE_M68060,
M68K_FEATURE_CF_ISA_A,
M68K_FEATURE_CF_ISA_B, /* (ISA B or C). */
M68K_FEATURE_CF_ISA_APLUSC, /* BIT/BITREV, FF1, STRLDSR (ISA A+ or C). */
@@ -481,7 +485,6 @@ enum m68k_features {
M68K_FEATURE_BKPT,
M68K_FEATURE_RTD,
M68K_FEATURE_CHK2,
- M68K_FEATURE_M68040, /* instructions specific to MC68040 */
M68K_FEATURE_MOVEP,
};
diff --git a/target/m68k/helper.c b/target/m68k/helper.c
index ae766a6cb0..baf7729af0 100644
--- a/target/m68k/helper.c
+++ b/target/m68k/helper.c
@@ -203,9 +203,17 @@ void HELPER(m68k_movec_to)(CPUM68KState *env, uint32_t reg, uint32_t val)
case M68K_CR_VBR:
env->vbr = val;
return;
- /* MC680[234]0 */
+ /* MC680[2346]0 */
case M68K_CR_CACR:
- env->cacr = val;
+ if (m68k_feature(env, M68K_FEATURE_M68020)) {
+ env->cacr = val & 0x0000000f;
+ } else if (m68k_feature(env, M68K_FEATURE_M68030)) {
+ env->cacr = val & 0x00003f1f;
+ } else if (m68k_feature(env, M68K_FEATURE_M68040)) {
+ env->cacr = val & 0x80008000;
+ } else if (m68k_feature(env, M68K_FEATURE_M68060)) {
+ env->cacr = val & 0xf8e0e000;
+ }
m68k_switch_sp(env);
return;
/* MC680[34]0 */