diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/fdt.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/release.S | 45 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/fdt.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/mp.h | 6 |
4 files changed, 53 insertions, 6 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c index 2ef2078..a0a9b4c 100644 --- a/arch/powerpc/cpu/mpc85xx/fdt.c +++ b/arch/powerpc/cpu/mpc85xx/fdt.c @@ -57,8 +57,9 @@ void ft_fixup_cpu(void *blob, u64 memory_limit) u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); if (reg) { - u64 val = *reg * SIZE_BOOT_ENTRY + spin_tbl_addr; - val = cpu_to_fdt32(val); + u32 phys_cpu_id = thread_to_core(*reg); + u64 val = phys_cpu_id * SIZE_BOOT_ENTRY + spin_tbl_addr; + val = cpu_to_fdt64(val); if (*reg == id) { fdt_setprop_string(blob, off, "status", "okay"); diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S index 043d0ff..22e73e0 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 @@ -155,7 +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 @@ -170,6 +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) /* @@ -253,7 +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) diff --git a/arch/powerpc/cpu/mpc8xxx/fdt.c b/arch/powerpc/cpu/mpc8xxx/fdt.c index 09810be..32ab050 100644 --- a/arch/powerpc/cpu/mpc8xxx/fdt.c +++ b/arch/powerpc/cpu/mpc8xxx/fdt.c @@ -62,8 +62,9 @@ void ft_fixup_num_cores(void *blob) { off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); while (off != -FDT_ERR_NOTFOUND) { u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); + u32 phys_cpu_id = thread_to_core(*reg); - if (!is_core_valid(*reg) || is_core_disabled(*reg)) { + if (!is_core_valid(phys_cpu_id) || is_core_disabled(phys_cpu_id)) { int ph = fdt_get_phandle(blob, off); /* Delete the cpu node once there are no cpu handles */ diff --git a/arch/powerpc/include/asm/mp.h b/arch/powerpc/include/asm/mp.h index 3ffa30b..fe490ba 100644 --- a/arch/powerpc/include/asm/mp.h +++ b/arch/powerpc/include/asm/mp.h @@ -28,4 +28,10 @@ void cpu_mp_lmb_reserve(struct lmb *lmb); u32 determine_mp_bootpg(void); int is_core_disabled(int nr); +#ifdef CONFIG_E6500 +#define thread_to_core(x) (x >> 1) +#else +#define thread_to_core(x) (x) +#endif + #endif |