diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/release.S')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/release.S | 87 |
1 files changed, 84 insertions, 3 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S index 1860684c1..22e73e066 100644 --- a/arch/powerpc/cpu/mpc85xx/release.S +++ b/arch/powerpc/cpu/mpc85xx/release.S @@ -1,5 +1,5 @@ /* - * Copyright 2008-2011 Freescale Semiconductor, Inc. + * Copyright 2008-2012 Freescale Semiconductor, Inc. * Kumar Gala <kumar.gala@freescale.com> * * See file CREDITS for list of people who contributed to this @@ -74,6 +74,33 @@ __secondary_start_page: mtspr 977,r3 #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A004510 + mfspr r3,SPRN_SVR + rlwinm r3,r3,0,0xff + li r4,CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV + cmpw r3,r4 + beq 1f + +#ifdef CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV2 + li r4,CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV2 + cmpw r3,r4 + beq 1f +#endif + + /* Not a supported revision affected by erratum */ + b 2f + +1: /* Erratum says set bits 55:60 to 001001 */ + msync + isync + mfspr r3,976 + li r4,0x48 + rlwimi r3,r4,0,0x1f8 + mtspr 976,r3 + isync +2: +#endif + /* Enable branch prediction */ lis r3,BUCSR_ENABLE@h ori r3,r3,BUCSR_ENABLE@l @@ -128,7 +155,27 @@ __secondary_start_page: /* r10 has the base address for the entry */ mfspr r0,SPRN_PIR -#ifdef CONFIG_E500MC +#if defined(CONFIG_E6500) +/* + * PIR definition for E6500 + * 0-17 Reserved (logic 0s) + * 8-19 CHIP_ID, 2’b00 - SoC 1 + * all others - reserved + * 20-24 CLUSTER_ID 5’b00000 - CCM 1 + * all others - reserved + * 25-26 CORE_CLUSTER_ID 2’b00 - cluster 1 + * 2’b01 - cluster 2 + * 2’b10 - cluster 3 + * 2’b11 - cluster 4 + * 27-28 CORE_ID 2’b00 - core 0 + * 2’b01 - core 1 + * 2’b10 - core 2 + * 2’b11 - core 3 + * 29-31 THREAD_ID 3’b000 - thread 0 + * 3’b001 - thread 1 + */ + rlwinm r4,r0,29,25,31 +#elif defined(CONFIG_E500MC) rlwinm r4,r0,27,27,31 #else mr r4,r0 @@ -143,6 +190,25 @@ __secondary_start_page: mtspr L1CSR2,r8 #endif +#ifdef CONFIG_E6500 + mfspr r0,SPRN_PIR + /* + * core 0 thread 0: pir reset value 0x00, new pir 0 + * core 0 thread 1: pir reset value 0x01, new pir 1 + * core 1 thread 0: pir reset value 0x08, new pir 2 + * core 1 thread 1: pir reset value 0x09, new pir 3 + * core 2 thread 0: pir reset value 0x10, new pir 4 + * core 2 thread 1: pir reset value 0x11, new pir 5 + * etc. + * + * Only thread 0 of each core will be running, updating PIR doesn't + * need to deal with the thread bits. + */ + rlwinm r4,r0,30,24,30 +#endif + + mtspr SPRN_PIR,r4 /* write to PIR register */ + #if defined(CONFIG_SYS_P4080_ERRATUM_CPU22) || \ defined(CONFIG_SYS_FSL_ERRATUM_NMG_CPU_A011) /* @@ -163,6 +229,12 @@ __secondary_start_page: cmpw r3,r5 bge 2f 1: +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_CPU_A011 + lis r3,toreset(enable_cpu_a011_workaround)@ha + lwz r3,toreset(enable_cpu_a011_workaround)@l(r3) + cmpwi r3,0 + beq 2f +#endif mfspr r3,L1CSR2 oris r3,r3,(L1CSR2_DCWS)@h mtspr L1CSR2,r3 @@ -220,7 +292,7 @@ __secondary_start_page: /* setup the entry */ li r3,0 li r8,1 - stw r0,ENTRY_PIR(r10) + stw r4,ENTRY_PIR(r10) stw r3,ENTRY_ADDR_UPPER(r10) stw r8,ENTRY_ADDR_LOWER(r10) stw r3,ENTRY_R3_UPPER(r10) @@ -346,6 +418,15 @@ __bootpg_addr: __spin_table: .space CONFIG_MAX_CPUS*ENTRY_SIZE + /* + * This variable is set by cpu_init_r() after parsing hwconfig + * to enable workaround for erratum NMG_CPU_A011. + */ + .align L1_CACHE_SHIFT + .global enable_cpu_a011_workaround +enable_cpu_a011_workaround: + .long 1 + /* Fill in the empty space. The actual reset vector is * the last word of the page */ __secondary_start_code_end: |