The number of CPUs are getting detected dynamically by checking the processor SVR value. Also removed CONFIG_NUM_CPUS references from all the platforms with 85xx/86xx processors.
This can help to use the same u-boot image across the platforms.
Also revamped and corrected few Freescale Copyright messages.
Signed-off-by: Poonam Aggrwal poonam.aggrwal@freescale.com --- - based of 2009.08-rc1 - depends on the patch "[PATCH 1/2] Refactored common cpu specific code for 85xx and 86xx into one file." - Changes over v1: Incorporated Wolfgang's comments common/cmd_mp.c | 6 +- cpu/mpc85xx/cpu.c | 21 ++++----- cpu/mpc85xx/mp.c | 6 +- cpu/mpc85xx/release.S | 25 +++++++++++- cpu/mpc85xx/speed.c | 4 +- cpu/mpc86xx/cpu.c | 10 +++-- cpu/mpc86xx/cpu_init.c | 4 +- cpu/mpc8xxx/cpu.c | 93 ++++++++++++++++++++++++++--------------- include/asm-ppc/config.h | 7 +++ include/asm-ppc/global_data.h | 1 + include/asm-ppc/processor.h | 5 +- include/common.h | 2 + include/configs/MPC8572DS.h | 1 - include/configs/MPC8610HPCD.h | 1 - include/configs/MPC8641HPCN.h | 1 - include/configs/P2020DS.h | 1 - include/configs/XPEDITE5170.h | 1 - include/configs/XPEDITE5370.h | 1 - include/configs/sbc8641d.h | 1 - include/e500.h | 6 +-- lib_ppc/board.c | 3 + lib_ppc/bootm.c | 2 +- 22 files changed, 127 insertions(+), 75 deletions(-)
diff --git a/common/cmd_mp.c b/common/cmd_mp.c index faa8700..71e4303 100644 --- a/common/cmd_mp.c +++ b/common/cmd_mp.c @@ -1,5 +1,5 @@ /* - * Copyright 2008 Freescale Semiconductor, Inc. + * Copyright 2008-2009 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -34,9 +34,9 @@ cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) }
cpuid = simple_strtoul(argv[1], NULL, 10); - if (cpuid >= CONFIG_NUM_CPUS) { + if (cpuid >= cpu_numcores()) { printf ("Core num: %lu is out of range[0..%d]\n", - cpuid, CONFIG_NUM_CPUS - 1); + cpuid, cpu_numcores() - 1); return 1; }
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 4724f27..6be98dc 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -54,24 +54,23 @@ int checkcpu (void) int i;
svr = get_svr(); - ver = SVR_SOC_VER(svr); major = SVR_MAJ(svr); #ifdef CONFIG_MPC8536 major &= 0x7; /* the msb of this nibble is a mfg code */ #endif minor = SVR_MIN(svr);
-#if (CONFIG_NUM_CPUS > 1) - volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); - printf("CPU%d: ", pic->whoami); -#else - puts("CPU: "); -#endif + if (cpu_numcores() > 1) { + volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); + printf("CPU%d: ", pic->whoami); + } else { + puts("CPU: "); + }
- cpu = identify_cpu(ver); - if (cpu) { - puts(cpu->name); + cpu = gd->cpu;
+ if (cpu->name) { + puts(cpu->name); if (IS_E_PROCESSOR(svr)) puts("E"); } else { @@ -104,7 +103,7 @@ int checkcpu (void) get_sys_info(&sysinfo);
puts("Clock Configuration:"); - for (i = 0; i < CONFIG_NUM_CPUS; i++) { + for (i = 0; i < cpu_numcores(); i++) { if (!(i & 3)) printf ("\n "); printf("CPU%d:%-4s MHz, ", diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c index 76f02a4..2df55c7 100644 --- a/cpu/mpc85xx/mp.c +++ b/cpu/mpc85xx/mp.c @@ -1,5 +1,5 @@ /* - * Copyright 2008 Freescale Semiconductor. + * Copyright 2008-2009 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -157,7 +157,7 @@ static void pq3_mp_up(unsigned long bootpg) out_be32(&gur->devdisr, devdisr);
/* release the hounds */ - up = ((1 << CONFIG_NUM_CPUS) - 1); + up = ((1 << cpu_numcores()) - 1); bpcr = in_be32(&ecm->eebpcr); bpcr |= (up << 24); out_be32(&ecm->eebpcr, bpcr); @@ -167,7 +167,7 @@ static void pq3_mp_up(unsigned long bootpg) /* wait for everyone */ while (timeout) { int i; - for (i = 0; i < CONFIG_NUM_CPUS; i++) { + for (i = 0; i < cpu_numcores(); i++) { if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) cpu_up_mask |= (1 << i); }; diff --git a/cpu/mpc85xx/release.S b/cpu/mpc85xx/release.S index fbefc2c..2d4f219 100644 --- a/cpu/mpc85xx/release.S +++ b/cpu/mpc85xx/release.S @@ -1,3 +1,26 @@ +/* + * Copyright 2008-2009 Freescale Semiconductor, Inc. + * Kumar Gala kumar.gala@freescale.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + #include <config.h> #include <mpc85xx.h> #include <version.h> @@ -203,7 +226,7 @@ __secondary_start_page: .align L1_CACHE_SHIFT .globl __spin_table __spin_table: - .space CONFIG_NUM_CPUS*ENTRY_SIZE + .space CONFIG_MAX_CPUS*ENTRY_SIZE
/* Fill in the empty space. The actual reset vector is * the last word of the page */ diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index 286b6b2..3ef49b4 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -1,5 +1,5 @@ /* - * Copyright 2004, 2007-2009 Freescale Semiconductor Inc. + * Copyright 2004, 2007-2009 Freescale Semiconductor, Inc. * (C) Copyright 2003 Motorola Inc. * Xianghua Xiao, (X.Xiao@motorola.com) * @@ -51,7 +51,7 @@ void get_sys_info (sys_info_t * sysInfo) /* Divide before multiply to avoid integer * overflow for processor speeds above 2GHz */ half_freqSystemBus = sysInfo->freqSystemBus/2; - for (i = 0; i < CONFIG_NUM_CPUS; i++) { + for (i = 0; i < cpu_numcores(); i++) { e500_ratio = ((gur->porpllsr) >> (i * 8 + 16)) & 0x3f; sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus; } diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c index 32d06d2..04409ce 100644 --- a/cpu/mpc86xx/cpu.c +++ b/cpu/mpc86xx/cpu.c @@ -30,6 +30,8 @@ #include <mpc86xx.h> #include <asm/fsl_law.h>
+DECLARE_GLOBAL_DATA_PTR; + /* * Default board reset function */ @@ -61,12 +63,12 @@ checkcpu(void)
puts("CPU: ");
- cpu = identify_cpu(ver); - if (cpu) { + cpu = gd->cpu; + + if (cpu->name) puts(cpu->name); - } else { + else puts("Unknown"); - }
printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr); puts("Core: "); diff --git a/cpu/mpc86xx/cpu_init.c b/cpu/mpc86xx/cpu_init.c index 341e815..5a78a9c 100644 --- a/cpu/mpc86xx/cpu_init.c +++ b/cpu/mpc86xx/cpu_init.c @@ -1,5 +1,5 @@ /* - * Copyright 2004 Freescale Semiconductor. + * Copyright 2004,2009 Freescale Semiconductor, Inc. * Jeff Brown * Srikanth Srinivasan (srikanth.srinivasan@freescale.com) * @@ -129,7 +129,7 @@ void cpu_init_f(void) */ int cpu_init_r(void) { -#if (CONFIG_NUM_CPUS > 1) +#if defined(CONFIG_MP) setup_mp(); #endif return 0; diff --git a/cpu/mpc8xxx/cpu.c b/cpu/mpc8xxx/cpu.c index e34ef33..17aed62 100644 --- a/cpu/mpc8xxx/cpu.c +++ b/cpu/mpc8xxx/cpu.c @@ -35,41 +35,41 @@ DECLARE_GLOBAL_DATA_PTR;
struct cpu_type cpu_type_list [] = { #if defined(CONFIG_MPC85xx) - CPU_TYPE_ENTRY(8533, 8533), - CPU_TYPE_ENTRY(8533, 8533_E), - CPU_TYPE_ENTRY(8535, 8535), - CPU_TYPE_ENTRY(8535, 8535_E), - CPU_TYPE_ENTRY(8536, 8536), - CPU_TYPE_ENTRY(8536, 8536_E), - CPU_TYPE_ENTRY(8540, 8540), - CPU_TYPE_ENTRY(8541, 8541), - CPU_TYPE_ENTRY(8541, 8541_E), - CPU_TYPE_ENTRY(8543, 8543), - CPU_TYPE_ENTRY(8543, 8543_E), - CPU_TYPE_ENTRY(8544, 8544), - CPU_TYPE_ENTRY(8544, 8544_E), - CPU_TYPE_ENTRY(8545, 8545), - CPU_TYPE_ENTRY(8545, 8545_E), - CPU_TYPE_ENTRY(8547, 8547_E), - CPU_TYPE_ENTRY(8548, 8548), - CPU_TYPE_ENTRY(8548, 8548_E), - CPU_TYPE_ENTRY(8555, 8555), - CPU_TYPE_ENTRY(8555, 8555_E), - CPU_TYPE_ENTRY(8560, 8560), - CPU_TYPE_ENTRY(8567, 8567), - CPU_TYPE_ENTRY(8567, 8567_E), - CPU_TYPE_ENTRY(8568, 8568), - CPU_TYPE_ENTRY(8568, 8568_E), - CPU_TYPE_ENTRY(8569, 8569), - CPU_TYPE_ENTRY(8569, 8569_E), - CPU_TYPE_ENTRY(8572, 8572), - CPU_TYPE_ENTRY(8572, 8572_E), - CPU_TYPE_ENTRY(P2020, P2020), - CPU_TYPE_ENTRY(P2020, P2020_E), + CPU_TYPE_ENTRY(8533, 8533, 1), + CPU_TYPE_ENTRY(8533, 8533_E, 1), + CPU_TYPE_ENTRY(8535, 8535, 1), + CPU_TYPE_ENTRY(8535, 8535_E, 1), + CPU_TYPE_ENTRY(8536, 8536, 1), + CPU_TYPE_ENTRY(8536, 8536_E, 1), + CPU_TYPE_ENTRY(8540, 8540, 1), + CPU_TYPE_ENTRY(8541, 8541, 1), + CPU_TYPE_ENTRY(8541, 8541_E, 1), + CPU_TYPE_ENTRY(8543, 8543, 1), + CPU_TYPE_ENTRY(8543, 8543_E, 1), + CPU_TYPE_ENTRY(8544, 8544, 1), + CPU_TYPE_ENTRY(8544, 8544_E, 1), + CPU_TYPE_ENTRY(8545, 8545, 1), + CPU_TYPE_ENTRY(8545, 8545_E, 1), + CPU_TYPE_ENTRY(8547, 8547_E, 1), + CPU_TYPE_ENTRY(8548, 8548, 1), + CPU_TYPE_ENTRY(8548, 8548_E, 1), + CPU_TYPE_ENTRY(8555, 8555, 1), + CPU_TYPE_ENTRY(8555, 8555_E, 1), + CPU_TYPE_ENTRY(8560, 8560, 1), + CPU_TYPE_ENTRY(8567, 8567, 1), + CPU_TYPE_ENTRY(8567, 8567_E, 1), + CPU_TYPE_ENTRY(8568, 8568, 1), + CPU_TYPE_ENTRY(8568, 8568_E, 1), + CPU_TYPE_ENTRY(8569, 8569, 1), + CPU_TYPE_ENTRY(8569, 8569_E, 1), + CPU_TYPE_ENTRY(8572, 8572, 2), + CPU_TYPE_ENTRY(8572, 8572_E, 2), + CPU_TYPE_ENTRY(P2020, P2020, 2), + CPU_TYPE_ENTRY(P2020, P2020_E, 2), #elif defined(CONFIG_MPC86xx) - CPU_TYPE_ENTRY(8610, 8610), - CPU_TYPE_ENTRY(8641, 8641), - CPU_TYPE_ENTRY(8641D, 8641D), + CPU_TYPE_ENTRY(8610, 8610, 1), + CPU_TYPE_ENTRY(8641, 8641, 2), + CPU_TYPE_ENTRY(8641D, 8641D, 2), #endif };
@@ -84,6 +84,31 @@ struct cpu_type *identify_cpu(u32 ver) return NULL; }
+int cpu_numcores() { + struct cpu_type *cpu; + cpu = gd->cpu; + return cpu->num_cores; +} + +int probecpu (void) +{ + uint svr; + uint ver; + + svr = get_svr(); + ver = SVR_SOC_VER(svr); + + gd->cpu = identify_cpu(ver); + +#ifndef CONFIG_MP + if (cpu_numcores() > 1) { + puts("Unicore software on multiprocessor system!!\n" + "To enable mutlticore build define CONFIG_MP\n"); + } +#endif + return 0; +} + /* * Initializes on-chip ethernet controllers. * to override, implement board_eth_init() diff --git a/include/asm-ppc/config.h b/include/asm-ppc/config.h index c9ba805..fd7961c 100644 --- a/include/asm-ppc/config.h +++ b/include/asm-ppc/config.h @@ -38,4 +38,11 @@ #endif #endif
+#if defined(CONFIG_MPC8572) || defined(CONFIG_P2020) \ + || defined(CONFIG_MPC8641) +#define CONFIG_MAX_CPUS 2 +#else +#define CONFIG_MAX_CPUS 1 +#endif + #endif /* _ASM_CONFIG_H_ */ diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h index 244c161..a5747e1 100644 --- a/include/asm-ppc/global_data.h +++ b/include/asm-ppc/global_data.h @@ -91,6 +91,7 @@ typedef struct global_data { #endif #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) u32 lbc_clk; + void *cpu; #endif /* CONFIG_MPC85xx || CONFIG_MPC86xx */ #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) u32 i2c1_clk; diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h index 2c0c0ce..f9e17cd 100644 --- a/include/asm-ppc/processor.h +++ b/include/asm-ppc/processor.h @@ -1063,13 +1063,14 @@ n: struct cpu_type { char name[15]; u32 soc_ver; + u32 num_cores; };
struct cpu_type *identify_cpu(u32 ver);
#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) -#define CPU_TYPE_ENTRY(n, v) \ - { .name = #n, .soc_ver = SVR_##v, } +#define CPU_TYPE_ENTRY(n, v, nc) \ + { .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), } #else #if defined(CONFIG_MPC83xx) #define CPU_TYPE_ENTRY(x) {#x, SPR_##x} diff --git a/include/common.h b/include/common.h index a6922fd..35f12c0 100644 --- a/include/common.h +++ b/include/common.h @@ -441,6 +441,8 @@ void ppcDWstore(unsigned int *addr, unsigned int *value); #endif
/* $(CPU)/cpu.c */ +int cpu_numcores (void); +int probecpu (void); int checkcpu (void); int checkicache (void); int checkdcache (void); diff --git a/include/configs/MPC8572DS.h b/include/configs/MPC8572DS.h index 64f5c4b..6d309c5 100644 --- a/include/configs/MPC8572DS.h +++ b/include/configs/MPC8572DS.h @@ -34,7 +34,6 @@ #define CONFIG_MPC8572 1 #define CONFIG_MPC8572DS 1 #define CONFIG_MP 1 /* support multiple processors */ -#define CONFIG_NUM_CPUS 2 /* Number of CPUs in the system */
#define CONFIG_FSL_ELBC 1 /* Has Enhanced localbus controller */ #define CONFIG_PCI 1 /* Enable PCI/PCIE */ diff --git a/include/configs/MPC8610HPCD.h b/include/configs/MPC8610HPCD.h index a3b5c7c..37796bc 100644 --- a/include/configs/MPC8610HPCD.h +++ b/include/configs/MPC8610HPCD.h @@ -17,7 +17,6 @@ #define CONFIG_MPC86xx 1 /* MPC86xx */ #define CONFIG_MPC8610 1 /* MPC8610 specific */ #define CONFIG_MPC8610HPCD 1 /* MPC8610HPCD board specific */ -#define CONFIG_NUM_CPUS 1 /* Number of CPUs in the system */ #define CONFIG_LINUX_RESET_VEC 0x100 /* Reset vector used by Linux */
#define CONFIG_FSL_DIU_FB 1 /* FSL DIU */ diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h index bf2e359..b0ae25c 100644 --- a/include/configs/MPC8641HPCN.h +++ b/include/configs/MPC8641HPCN.h @@ -37,7 +37,6 @@ #define CONFIG_MPC8641 1 /* MPC8641 specific */ #define CONFIG_MPC8641HPCN 1 /* MPC8641HPCN board specific */ #define CONFIG_MP 1 /* support multiple processors */ -#define CONFIG_NUM_CPUS 2 /* Number of CPUs in the system */ #define CONFIG_LINUX_RESET_VEC 0x100 /* Reset vector used by Linux */ /*#define CONFIG_PHYS_64BIT 1*/ /* Place devices in 36-bit space */ #define CONFIG_ADDR_MAP 1 /* Use addr map */ diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h index 5c2c5cb..7a6d599 100644 --- a/include/configs/P2020DS.h +++ b/include/configs/P2020DS.h @@ -34,7 +34,6 @@ #define CONFIG_P2020 1 #define CONFIG_P2020DS 1 #define CONFIG_MP 1 /* support multiple processors */ -#define CONFIG_NUM_CPUS 2 /* Number of CPUs in the system */
#define CONFIG_FSL_ELBC 1 /* Has Enhanced localbus controller */ #define CONFIG_PCI 1 /* Enable PCI/PCIE */ diff --git a/include/configs/XPEDITE5170.h b/include/configs/XPEDITE5170.h index 8be9fa0..242466a 100644 --- a/include/configs/XPEDITE5170.h +++ b/include/configs/XPEDITE5170.h @@ -34,7 +34,6 @@ #define CONFIG_MPC8641 1 /* MPC8641 specific */ #define CONFIG_XPEDITE5140 1 /* MPC8641HPCN board specific */ #define CONFIG_SYS_BOARD_NAME "XPedite5170" -#define CONFIG_NUM_CPUS 1 /* Number of CPUs in the system */ #define CONFIG_LINUX_RESET_VEC 0x100 /* Reset vector used by Linux */ #define CONFIG_BOARD_EARLY_INIT_R /* Call board_pre_init */ #define CONFIG_RELOC_FIXUP_WORKS /* Fully relocate to SDRAM */ diff --git a/include/configs/XPEDITE5370.h b/include/configs/XPEDITE5370.h index acb62ad..3c58ebe 100644 --- a/include/configs/XPEDITE5370.h +++ b/include/configs/XPEDITE5370.h @@ -36,7 +36,6 @@ #define CONFIG_MPC8572 1 #define CONFIG_XPEDITE5370 1 #define CONFIG_SYS_BOARD_NAME "XPedite5370" -#define CONFIG_NUM_CPUS 2 /* 2 Cores */ #define CONFIG_BOARD_EARLY_INIT_R /* Call board_pre_init */ #define CONFIG_RELOC_FIXUP_WORKS /* Fully relocate to SDRAM */
diff --git a/include/configs/sbc8641d.h b/include/configs/sbc8641d.h index ef0f627..5376e4a 100644 --- a/include/configs/sbc8641d.h +++ b/include/configs/sbc8641d.h @@ -41,7 +41,6 @@ #define CONFIG_MPC8641 1 /* MPC8641 specific */ #define CONFIG_SBC8641D 1 /* SBC8641D board specific */ #define CONFIG_MP 1 /* support multiple processors */ -#define CONFIG_NUM_CPUS 2 /* Number of CPUs in the system */ #define CONFIG_LINUX_RESET_VEC 0x100 /* Reset vector used by Linux */
#ifdef RUN_DIAG diff --git a/include/e500.h b/include/e500.h index 84b580d..f8c8266 100644 --- a/include/e500.h +++ b/include/e500.h @@ -8,13 +8,9 @@
#ifndef __ASSEMBLY__
-#ifndef CONFIG_NUM_CPUS -#define CONFIG_NUM_CPUS 1 -#endif - typedef struct { - unsigned long freqProcessor[CONFIG_NUM_CPUS]; + unsigned long freqProcessor[CONFIG_MAX_CPUS]; unsigned long freqSystemBus; unsigned long freqDDRBus; unsigned long freqLocalBus; diff --git a/lib_ppc/board.c b/lib_ppc/board.c index 6dd4d56..9faf7f2 100644 --- a/lib_ppc/board.c +++ b/lib_ppc/board.c @@ -291,6 +291,9 @@ init_fnc_t *init_sequence[] = { board_early_init_f, #endif
+#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) + probecpu, +#endif #if !defined(CONFIG_8xx_CPUCLK_DEFAULT) get_clocks, /* get CPU and bus clocks (etc.) */ #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) \ diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c index 0d702bf..dd1fcf1 100644 --- a/lib_ppc/bootm.c +++ b/lib_ppc/bootm.c @@ -170,7 +170,7 @@ void arch_lmb_reserve(struct lmb *lmb)
static void boot_prep_linux(void) { -#if (CONFIG_NUM_CPUS > 1) +#ifdef CONFIG_MP /* if we are MP make sure to flush the dcache() to any changes are made * visibile to all other cores */ flush_dcache();