提交 3dfa8773 编写于 作者: K Kumar Gala

powerpc/booke: Add support for new e500mc core

The new e500mc core from Freescale is based on the e500v2 but with the
following changes:

* Supports only the Enhanced Debug Architecture (DSRR0/1, etc)
* Floating Point
* No SPE
* Supports lwsync
* Doorbell Exceptions
* Hypervisor
* Cache line size is now 64-bytes (e500v1/v2 have a 32-byte cache line)
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
上级 bccaea8f
......@@ -1522,6 +1522,21 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_e500,
.platform = "ppc8548",
},
{ /* e500mc */
.pvr_mask = 0xffff0000,
.pvr_value = 0x80230000,
.cpu_name = "e500mc",
/* xxx - galak: add CPU_FTR_MAYBE_CAN_DOZE */
.cpu_features = CPU_FTRS_E500MC,
.cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
.icache_bsize = 64,
.dcache_bsize = 64,
.num_pmcs = 4,
.oprofile_cpu_type = "ppc/e500", /* xxx - galak, e500mc? */
.oprofile_type = PPC_OPROFILE_FSL_EMB,
.machine_check = machine_check_e500,
.platform = "ppce500mc",
},
{ /* default match */
.pvr_mask = 0x00000000,
.pvr_value = 0x00000000,
......
......@@ -68,9 +68,13 @@
#define MCHECK_STACK_BASE mcheckirq_ctx
#define CRIT_STACK_BASE critirq_ctx
/* only on e200 for now */
/* only on e500mc/e200 */
#define DEBUG_STACK_BASE dbgirq_ctx
#ifdef CONFIG_PPC_E500MC
#define DEBUG_SPRG SPRN_SPRG9
#else
#define DEBUG_SPRG SPRN_SPRG6W
#endif
#define EXC_LVL_FRAME_OVERHEAD (THREAD_SIZE - INT_FRAME_SIZE - EXC_LVL_SIZE)
......
......@@ -304,7 +304,7 @@ skpinv: addi r6,r6,1 /* Increment */
SET_IVOR(13, DataTLBError);
SET_IVOR(14, InstructionTLBError);
SET_IVOR(15, DebugDebug);
#if defined(CONFIG_E500)
#if defined(CONFIG_E500) && !defined(CONFIG_PPC_E500MC)
SET_IVOR(15, DebugCrit);
#endif
SET_IVOR(32, SPEUnavailable);
......@@ -313,6 +313,9 @@ skpinv: addi r6,r6,1 /* Increment */
#ifndef CONFIG_E200
SET_IVOR(35, PerformanceMonitor);
#endif
#ifdef CONFIG_PPC_E500MC
SET_IVOR(36, Doorbell);
#endif
/* Establish the interrupt vector base */
lis r4,interrupt_base@h /* IVPR only uses the high 16-bits */
......@@ -750,10 +753,13 @@ interrupt_base:
/* Performance Monitor */
EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD)
#ifdef CONFIG_PPC_E500MC
EXCEPTION(0x2070, Doorbell, unknown_exception, EXC_XFER_EE)
#endif
/* Debug Interrupt */
DEBUG_DEBUG_EXCEPTION
#if defined(CONFIG_E500)
#if defined(CONFIG_E500) && !defined(CONFIG_PPC_E500MC)
DEBUG_CRIT_EXCEPTION
#endif
......
......@@ -95,6 +95,11 @@ config E500
select FSL_EMB_PERFMON
bool
config PPC_E500MC
bool "e500mc Support"
select PPC_FPU
depends on E500
config PPC_FPU
bool
default y if PPC64
......@@ -157,7 +162,7 @@ config ALTIVEC
config SPE
bool "SPE Support"
depends on E200 || E500
depends on E200 || (E500 && !PPC_E500MC)
default y
---help---
This option enables kernel support for the Signal Processing
......
......@@ -8,6 +8,9 @@
#if defined(CONFIG_8xx) || defined(CONFIG_403GCX)
#define L1_CACHE_SHIFT 4
#define MAX_COPY_PREFETCH 1
#elif defined(CONFIG_PPC_E500MC)
#define L1_CACHE_SHIFT 6
#define MAX_COPY_PREFETCH 4
#elif defined(CONFIG_PPC32)
#define L1_CACHE_SHIFT 5
#define MAX_COPY_PREFETCH 4
......
......@@ -351,6 +351,8 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
CPU_FTR_NODSISRALIGN)
#define CPU_FTRS_E500_2 (CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \
CPU_FTR_BIG_PHYS | CPU_FTR_NODSISRALIGN)
#define CPU_FTRS_E500MC (CPU_FTR_USE_TB | CPU_FTR_BIG_PHYS | \
CPU_FTR_NODSISRALIGN)
#define CPU_FTRS_GENERIC_32 (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN)
/* 64-bit CPUs */
......@@ -421,7 +423,7 @@ enum {
CPU_FTRS_E200 |
#endif
#ifdef CONFIG_E500
CPU_FTRS_E500 | CPU_FTRS_E500_2 |
CPU_FTRS_E500 | CPU_FTRS_E500_2 | CPU_FTRS_E500MC |
#endif
0,
};
......@@ -461,7 +463,7 @@ enum {
CPU_FTRS_E200 &
#endif
#ifdef CONFIG_E500
CPU_FTRS_E500 & CPU_FTRS_E500_2 &
CPU_FTRS_E500 & CPU_FTRS_E500_2 & CPU_FTRS_E500MC &
#endif
CPU_FTRS_POSSIBLE,
};
......
......@@ -4,7 +4,7 @@
#include <linux/stringify.h>
#ifdef __powerpc64__
#if defined(__powerpc64__) || defined(CONFIG_PPC_E500MC)
#define __SUBARCH_HAS_LWSYNC
#endif
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册