diff options
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 104 |
1 files changed, 68 insertions, 36 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 36ffb3504a4f..5bdcc06d294c 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -30,6 +30,7 @@ * option) any later version. */ +#include <linux/init.h> #include <linux/threads.h> #include <asm/processor.h> #include <asm/page.h> @@ -53,7 +54,7 @@ * r7 - End of kernel command line string * */ - .section .text.head, "ax" + __HEAD _ENTRY(_stext); _ENTRY(_start); /* @@ -103,10 +104,15 @@ invstr: mflr r6 /* Make it accessible */ or r7,r7,r4 mtspr SPRN_MAS6,r7 tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */ -#ifndef CONFIG_E200 mfspr r7,SPRN_MAS1 andis. r7,r7,MAS1_VALID@h bne match_TLB + + mfspr r7,SPRN_MMUCFG + rlwinm r7,r7,21,28,31 /* extract MMUCFG[NPIDS] */ + cmpwi r7,3 + bne match_TLB /* skip if NPIDS != 3 */ + mfspr r7,SPRN_PID1 slwi r7,r7,16 or r7,r7,r4 @@ -120,7 +126,7 @@ invstr: mflr r6 /* Make it accessible */ or r7,r7,r4 mtspr SPRN_MAS6,r7 tlbsx 0,r6 /* Fall through, we had to match */ -#endif + match_TLB: mfspr r7,SPRN_MAS0 rlwinm r3,r7,16,20,31 /* Extract MAS0(Entry) */ @@ -168,7 +174,7 @@ skpinv: addi r6,r6,1 /* Increment */ /* grab and fixup the RPN */ mfspr r6,SPRN_MAS1 /* extract MAS1[SIZE] */ - rlwinm r6,r6,25,27,30 + rlwinm r6,r6,25,27,31 li r8,-1 addi r6,r6,10 slw r6,r8,r6 /* convert to mask */ @@ -194,7 +200,7 @@ skpinv: addi r6,r6,1 /* Increment */ xori r6,r4,1 /* Setup TMP mapping in the other Address space */ slwi r6,r6,12 oris r6,r6,(MAS1_VALID|MAS1_IPROT)@h - ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_4K))@l + ori r6,r6,(MAS1_TSIZE(BOOK3E_PAGESZ_4K))@l mtspr SPRN_MAS1,r6 mfspr r6,SPRN_MAS2 li r7,0 /* temp EPN = 0 */ @@ -215,14 +221,19 @@ skpinv: addi r6,r6,1 /* Increment */ /* 4. Clear out PIDs & Search info */ li r6,0 + mtspr SPRN_MAS6,r6 mtspr SPRN_PID0,r6 -#ifndef CONFIG_E200 + + mfspr r7,SPRN_MMUCFG + rlwinm r7,r7,21,28,31 /* extract MMUCFG[NPIDS] */ + cmpwi r7,3 + bne 2f /* skip if NPIDS != 3 */ + mtspr SPRN_PID1,r6 mtspr SPRN_PID2,r6 -#endif - mtspr SPRN_MAS6,r6 /* 5. Invalidate mapping we started in */ +2: lis r7,0x1000 /* Set MAS0(TLBSEL) = 1 */ rlwimi r7,r3,16,4,15 /* Setup MAS0 = TLBSEL | ESEL(r3) */ mtspr SPRN_MAS0,r7 @@ -247,10 +258,10 @@ skpinv: addi r6,r6,1 /* Increment */ lis r6,0x1000 /* Set MAS0(TLBSEL) = TLB1(1), ESEL = 0 */ mtspr SPRN_MAS0,r6 lis r6,(MAS1_VALID|MAS1_IPROT)@h - ori r6,r6,(MAS1_TSIZE(BOOKE_PAGESZ_64M))@l + ori r6,r6,(MAS1_TSIZE(BOOK3E_PAGESZ_64M))@l mtspr SPRN_MAS1,r6 - lis r6,MAS2_VAL(PAGE_OFFSET, BOOKE_PAGESZ_64M, M_IF_SMP)@h - ori r6,r6,MAS2_VAL(PAGE_OFFSET, BOOKE_PAGESZ_64M, M_IF_SMP)@l + lis r6,MAS2_VAL(PAGE_OFFSET, BOOK3E_PAGESZ_64M, M_IF_SMP)@h + ori r6,r6,MAS2_VAL(PAGE_OFFSET, BOOK3E_PAGESZ_64M, M_IF_SMP)@l mtspr SPRN_MAS2,r6 mtspr SPRN_MAS3,r8 tlbwe @@ -298,26 +309,14 @@ skpinv: addi r6,r6,1 /* Increment */ SET_IVOR(12, WatchdogTimer); SET_IVOR(13, DataTLBError); SET_IVOR(14, InstructionTLBError); - SET_IVOR(15, DebugDebug); -#if defined(CONFIG_E500) && !defined(CONFIG_PPC_E500MC) SET_IVOR(15, DebugCrit); -#endif - SET_IVOR(32, SPEUnavailable); - SET_IVOR(33, SPEFloatingPointData); - SET_IVOR(34, SPEFloatingPointRound); -#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 */ mtspr SPRN_IVPR,r4 /* Setup the defaults for TLB entries */ - li r2,(MAS4_TSIZED(BOOKE_PAGESZ_4K))@l + li r2,(MAS4_TSIZED(BOOK3E_PAGESZ_4K))@l #ifdef CONFIG_E200 oris r2,r2,MAS4_TLBSELD(1)@h #endif @@ -329,12 +328,6 @@ skpinv: addi r6,r6,1 /* Increment */ oris r2,r2,HID0_DOZE@h mtspr SPRN_HID0, r2 #endif -#ifdef CONFIG_E200 - /* enable dedicated debug exception handling resources (Debug APU) */ - mfspr r2,SPRN_HID0 - ori r2,r2,HID0_DAPUEN@l - mtspr SPRN_HID0,r2 -#endif #if !defined(CONFIG_BDI_SWITCH) /* @@ -706,15 +699,13 @@ interrupt_base: /* Performance Monitor */ EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD) -#ifdef CONFIG_PPC_E500MC - EXCEPTION(0x2070, Doorbell, unknown_exception, EXC_XFER_STD) -#endif + EXCEPTION(0x2070, Doorbell, doorbell_exception, EXC_XFER_STD) + + CRITICAL_EXCEPTION(0x2080, CriticalDoorbell, unknown_exception) /* Debug Interrupt */ DEBUG_DEBUG_EXCEPTION -#if defined(CONFIG_E500) && !defined(CONFIG_PPC_E500MC) DEBUG_CRIT_EXCEPTION -#endif /* * Local functions @@ -897,6 +888,47 @@ KernelSPE: * Global functions */ +/* Adjust or setup IVORs for e200 */ +_GLOBAL(__setup_e200_ivors) + li r3,DebugDebug@l + mtspr SPRN_IVOR15,r3 + li r3,SPEUnavailable@l + mtspr SPRN_IVOR32,r3 + li r3,SPEFloatingPointData@l + mtspr SPRN_IVOR33,r3 + li r3,SPEFloatingPointRound@l + mtspr SPRN_IVOR34,r3 + sync + blr + +/* Adjust or setup IVORs for e500v1/v2 */ +_GLOBAL(__setup_e500_ivors) + li r3,DebugCrit@l + mtspr SPRN_IVOR15,r3 + li r3,SPEUnavailable@l + mtspr SPRN_IVOR32,r3 + li r3,SPEFloatingPointData@l + mtspr SPRN_IVOR33,r3 + li r3,SPEFloatingPointRound@l + mtspr SPRN_IVOR34,r3 + li r3,PerformanceMonitor@l + mtspr SPRN_IVOR35,r3 + sync + blr + +/* Adjust or setup IVORs for e500mc */ +_GLOBAL(__setup_e500mc_ivors) + li r3,DebugDebug@l + mtspr SPRN_IVOR15,r3 + li r3,PerformanceMonitor@l + mtspr SPRN_IVOR35,r3 + li r3,Doorbell@l + mtspr SPRN_IVOR36,r3 + li r3,CriticalDoorbell@l + mtspr SPRN_IVOR37,r3 + sync + blr + /* * extern void loadcam_entry(unsigned int index) * @@ -1089,7 +1121,7 @@ __secondary_start: mtspr SPRN_SPRG3,r4 /* Setup the defaults for TLB entries */ - li r4,(MAS4_TSIZED(BOOKE_PAGESZ_4K))@l + li r4,(MAS4_TSIZED(BOOK3E_PAGESZ_4K))@l mtspr SPRN_MAS4,r4 /* Jump to start_secondary */ |