diff options
Diffstat (limited to 'cpu/ixp/cpu.c')
| -rw-r--r-- | cpu/ixp/cpu.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/cpu/ixp/cpu.c b/cpu/ixp/cpu.c index 2a2bd504d..7f9f3344b 100644 --- a/cpu/ixp/cpu.c +++ b/cpu/ixp/cpu.c @@ -34,10 +34,47 @@ #include <command.h> #include <asm/arch/ixp425.h> +ulong loops_per_jiffy; + #ifdef CONFIG_USE_IRQ DECLARE_GLOBAL_DATA_PTR; #endif +#if defined(CONFIG_DISPLAY_CPUINFO) +int print_cpuinfo (void) +{ + unsigned long id; + int speed = 0; + + asm ("mrc p15, 0, %0, c0, c0, 0":"=r" (id)); + + puts("CPU: Intel IXP425 at "); + switch ((id & 0x000003f0) >> 4) { + case 0x1c: + loops_per_jiffy = 887467; + speed = 533; + break; + + case 0x1d: + loops_per_jiffy = 666016; + speed = 400; + break; + + case 0x1f: + loops_per_jiffy = 442901; + speed = 266; + break; + } + + if (speed) + printf("%d MHz\n", speed); + else + puts("unknown revision\n"); + + return 0; +} +#endif /* CONFIG_DISPLAY_CPUINFO */ + int cpu_init (void) { /* @@ -48,7 +85,9 @@ int cpu_init (void) FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ; #endif +#if (CONFIG_COMMANDS & CFG_CMD_PCI) || defined (CONFIG_PCI) pci_init(); +#endif return 0; } @@ -154,3 +193,25 @@ void pci_init(void) return; } */ + +#ifdef CONFIG_BOOTCOUNT_LIMIT + +void bootcount_store (ulong a) +{ + volatile ulong *save_addr = (volatile ulong *)(CFG_BOOTCOUNT_ADDR); + + save_addr[0] = a; + save_addr[1] = BOOTCOUNT_MAGIC; +} + +ulong bootcount_load (void) +{ + volatile ulong *save_addr = (volatile ulong *)(CFG_BOOTCOUNT_ADDR); + + if (save_addr[1] != BOOTCOUNT_MAGIC) + return 0; + else + return save_addr[0]; +} + +#endif /* CONFIG_BOOTCOUNT_LIMIT */ |