From c9c11d751e4242cf29c3c3c290d971f6d0cb1d15 Mon Sep 17 00:00:00 2001 From: Adam Graham Date: Wed, 8 Oct 2008 10:13:19 -0700 Subject: [PATCH] ppc4xx: Add routine to retrieve CPU number Provide a weak defined routine to retrieve the CPU number for reference boards that have multiple CPU's. Default behavior is the existing single CPU print output. Reference boards with multiple CPU's need to provide a board specific routine. See board/amcc/arches/arches.c for an example. Signed-off-by: Adam Graham Signed-off-by: Victor Gallardo Signed-off-by: Stefan Roese --- cpu/ppc4xx/cpu.c | 19 ++++++++++++++++++- include/ppc4xx.h | 3 +++ 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c index 66a77370c8..a676b30efe 100644 --- a/cpu/ppc4xx/cpu.c +++ b/cpu/ppc4xx/cpu.c @@ -41,6 +41,18 @@ DECLARE_GLOBAL_DATA_PTR; void board_reset(void); +/* + * To provide an interface to detect CPU number for boards that support + * more then one CPU, we implement the "weak" default functions here. + * + * Returns CPU number + */ +int __get_cpu_num(void) +{ + return NA_OR_UNKNOWN_CPU; +} +int get_cpu_num(void) __attribute__((weak, alias("__get_cpu_num"))); + #if defined(CONFIG_405GP) || \ defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ defined(CONFIG_440EPX) || defined(CONFIG_440GRX) @@ -274,8 +286,13 @@ int checkcpu (void) #if !defined(CONFIG_IOP480) char addstr[64] = ""; sys_info_t sys_info; + int cpu_num; - puts ("CPU: "); + cpu_num = get_cpu_num(); + if (cpu_num >= 0) + printf("CPU%d: ", cpu_num); + else + puts("CPU: "); get_sys_info(&sys_info); diff --git a/include/ppc4xx.h b/include/ppc4xx.h index ce4b29a193..f1478854d1 100644 --- a/include/ppc4xx.h +++ b/include/ppc4xx.h @@ -218,4 +218,7 @@ static inline void set_mcsr(u32 val) #endif /* __ASSEMBLY__ */ +/* for multi-cpu support */ +#define NA_OR_UNKNOWN_CPU -1 + #endif /* __PPC4XX_H__ */ -- 2.30.2