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PPC: Add description for the Freescale e500mc core.
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This core is found on chips such as p4080, p3041, p2040, and p5020.

More needs to be done to make this viable for TCG (such as missing SPRs
and instructions), but this suffices to get KVM running with appropriate
kernel support.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
[scottwood@freescale.com: tweak some flags]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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@varunfsl @agraf
varunfsl authored and agraf committed Jan 3, 2012
1 parent 9fc380d commit f7aa558
Showing 1 changed file with 50 additions and 6 deletions.
56 changes: 50 additions & 6 deletions target-ppc/translate_init.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
* PowerPC CPU initialization for qemu.
*
* Copyright (c) 2003-2007 Jocelyn Mayer
* Copyright 2011 Freescale Semiconductor, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
Expand Down Expand Up @@ -4399,6 +4400,33 @@ static void init_proc_e300 (CPUPPCState *env)
#define check_pow_e500v2 check_pow_hid0
#define init_proc_e500v2 init_proc_e500v2

/* e500mc core */
#define POWERPC_INSNS_e500mc (PPC_INSNS_BASE | PPC_ISEL | \
PPC_WRTEE | PPC_RFDI | PPC_RFMCI | \
PPC_CACHE | PPC_CACHE_LOCK | PPC_CACHE_ICBI | \
PPC_CACHE_DCBZ | PPC_CACHE_DCBA | \
PPC_FLOAT | PPC_FLOAT_FRES | \
PPC_FLOAT_FRSQRTE | PPC_FLOAT_FSEL | \
PPC_FLOAT_STFIWX | PPC_WAIT | \
PPC_MEM_TLBSYNC | PPC_TLBIVAX)
#define POWERPC_INSNS2_e500mc (PPC2_BOOKE206)
#define POWERPC_MSRM_e500mc (0x000000001402FB36ULL)
#define POWERPC_MMU_e500mc (POWERPC_MMU_BOOKE206)
#define POWERPC_EXCP_e500mc (POWERPC_EXCP_BOOKE)
#define POWERPC_INPUT_e500mc (PPC_FLAGS_INPUT_BookE)
/* Fixme: figure out the correct flag for e500mc */
#define POWERPC_BFDM_e500mc (bfd_mach_ppc_e500)
#define POWERPC_FLAG_e500mc (POWERPC_FLAG_CE | POWERPC_FLAG_DE | \
POWERPC_FLAG_PMM | POWERPC_FLAG_BUS_CLK)
#define check_pow_e500mc check_pow_none
#define init_proc_e500mc init_proc_e500mc

enum fsl_e500_version {
fsl_e500v1,
fsl_e500v2,
fsl_e500mc,
};

static void init_proc_e500 (CPUPPCState *env, int version)
{
uint32_t tlbncfg[2];
Expand Down Expand Up @@ -4430,15 +4458,26 @@ static void init_proc_e500 (CPUPPCState *env, int version)
env->nb_ways = 2;
env->id_tlbs = 0;
switch (version) {
case 1:
case fsl_e500v1:
/* e500v1 */
tlbncfg[0] = gen_tlbncfg(2, 1, 1, 0, 256);
tlbncfg[1] = gen_tlbncfg(16, 1, 9, TLBnCFG_AVAIL | TLBnCFG_IPROT, 16);
env->dcache_line_size = 32;
env->icache_line_size = 32;
break;
case 2:
case fsl_e500v2:
/* e500v2 */
tlbncfg[0] = gen_tlbncfg(4, 1, 1, 0, 512);
tlbncfg[1] = gen_tlbncfg(16, 1, 12, TLBnCFG_AVAIL | TLBnCFG_IPROT, 16);
env->dcache_line_size = 32;
env->icache_line_size = 32;
break;
case fsl_e500mc:
/* e500mc */
tlbncfg[0] = gen_tlbncfg(4, 1, 1, 0, 512);
tlbncfg[1] = gen_tlbncfg(64, 1, 12, TLBnCFG_AVAIL | TLBnCFG_IPROT, 64);
env->dcache_line_size = 64;
env->icache_line_size = 64;
break;
default:
cpu_abort(env, "Unknown CPU: " TARGET_FMT_lx "\n", env->spr[SPR_PVR]);
Expand Down Expand Up @@ -4522,20 +4561,23 @@ static void init_proc_e500 (CPUPPCState *env, int version)
#endif

init_excp_e200(env);
env->dcache_line_size = 32;
env->icache_line_size = 32;
/* Allocate hardware IRQ controller */
ppce500_irq_init(env);
}

static void init_proc_e500v1(CPUPPCState *env)
{
init_proc_e500(env, 1);
init_proc_e500(env, fsl_e500v1);
}

static void init_proc_e500v2(CPUPPCState *env)
{
init_proc_e500(env, 2);
init_proc_e500(env, fsl_e500v2);
}

static void init_proc_e500mc(CPUPPCState *env)
{
init_proc_e500(env, fsl_e500mc);
}

/* Non-embedded PowerPC */
Expand Down Expand Up @@ -7070,6 +7112,7 @@ enum {
CPU_POWERPC_e500v2_v21 = 0x80210021,
CPU_POWERPC_e500v2_v22 = 0x80210022,
CPU_POWERPC_e500v2_v30 = 0x80210030,
CPU_POWERPC_e500mc = 0x80230020,
/* MPC85xx microcontrollers */
#define CPU_POWERPC_MPC8533 CPU_POWERPC_MPC8533_v11
#define CPU_POWERPC_MPC8533_v10 CPU_POWERPC_e500v2_v21
Expand Down Expand Up @@ -8471,6 +8514,7 @@ static const ppc_def_t ppc_defs[] = {
POWERPC_DEF("e500v2_v22", CPU_POWERPC_e500v2_v22, e500v2),
/* PowerPC e500v2 v3.0 core */
POWERPC_DEF("e500v2_v30", CPU_POWERPC_e500v2_v30, e500v2),
POWERPC_DEF("e500mc", CPU_POWERPC_e500mc, e500mc),
/* PowerPC e500 microcontrollers */
/* MPC8533 */
POWERPC_DEF_SVR("MPC8533",
Expand Down

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