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add ft_cpu_setup(..) on mpc8260

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Add ft_cpu_setup(..)-function to adapt it for use with libfdt
based on code from mpc5xxx

Sigend-off-by: Sergej Stepanov <Sergej.Stepanov@ids.de>
--
This commit is contained in:
Sergej Stepanov 2007-10-17 11:13:51 +02:00 • committed by Wolfgang Denk
parent 6abd82e19a
commit c9e7b9b9a1
1 changed files with 38 additions and 0 deletions
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38
cpu/mpc8260/cpu.c
View file

@ -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 */