diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc86xx/interrupts.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc86xx/interrupts.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc86xx/interrupts.c b/arch/powerpc/cpu/mpc86xx/interrupts.c index d8ad6d30d..14821f424 100644 --- a/arch/powerpc/cpu/mpc86xx/interrupts.c +++ b/arch/powerpc/cpu/mpc86xx/interrupts.c @@ -35,12 +35,24 @@ #include <mpc86xx.h> #include <command.h> #include <asm/processor.h> +#ifdef CONFIG_POST +#include <post.h> +#endif int interrupt_init_cpu(unsigned long *decrementer_count) { volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR; volatile ccsr_pic_t *pic = &immr->im_pic; +#ifdef CONFIG_POST + /* + * The POST word is stored in the PIC's TFRR register which gets + * cleared when the PIC is reset. Save it off so we can restore it + * later. + */ + ulong post_word = post_word_load(); +#endif + pic->gcr = MPC86xx_PICGCR_RST; while (pic->gcr & MPC86xx_PICGCR_RST) ; @@ -74,6 +86,10 @@ int interrupt_init_cpu(unsigned long *decrementer_count) pic->ctpr = 0; /* 40080 clear current task priority register */ #endif +#ifdef CONFIG_POST + post_word_store(post_word); +#endif + return 0; } |