diff options
Diffstat (limited to 'cpu/mpc8260/cpu.c')
| -rw-r--r-- | cpu/mpc8260/cpu.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/cpu/mpc8260/cpu.c b/cpu/mpc8260/cpu.c index 94651dc..c2b753d 100644 --- a/cpu/mpc8260/cpu.c +++ b/cpu/mpc8260/cpu.c @@ -47,6 +47,11 @@ #include <asm/processor.h> #include <asm/cpm_8260.h> +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <libfdt_env.h> +#endif + DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_GET_CPU_STR_F) @@ -294,3 +299,36 @@ void watchdog_reset (void) #endif /* CONFIG_WATCHDOG */ /* ------------------------------------------------------------------------- */ +#if defined(CONFIG_OF_LIBFDT) +static void do_fixup(void *fdt, const char *node, const char *prop, + const void *val, int len, int create) +{ +#if defined(DEBUG) + int i; + debug("Updating property '%s/%s' = ", node, prop); + for (i = 0; i < len; i++) + debug(" %.2x", *(u8*)(val+i)); + debug("\n"); +#endif + int rc = fdt_find_and_setprop(fdt, node, prop, val, len, create); + if (rc) + printf("Unable to update property %s:%s, err=%s\n", + node, prop, fdt_strerror(rc)); +} + +static void do_fixup_u32(void *fdt, const char *node, const char *prop, + u32 val, int create) +{ + val = cpu_to_fdt32(val); + do_fixup(fdt, node, prop, &val, sizeof(val), create); +} + +void ft_cpu_setup (void *blob, bd_t *bd) +{ + char * cpu_path = "/cpus/" OF_CPU; + + do_fixup_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1); + do_fixup_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1); + do_fixup_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1); +} +#endif /* CONFIG_OF_LIBFDT */ |