diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/interrupts.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/interrupts.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/interrupts.c b/arch/powerpc/cpu/mpc85xx/interrupts.c index a62b0317748..7ab71137f64 100644 --- a/arch/powerpc/cpu/mpc85xx/interrupts.c +++ b/arch/powerpc/cpu/mpc85xx/interrupts.c @@ -32,11 +32,23 @@ #include <command.h> #include <asm/processor.h> #include <asm/io.h> +#ifdef CONFIG_POST +#include <post.h> +#endif int interrupt_init_cpu(unsigned int *decrementer_count) { ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR; +#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 + out_be32(&pic->gcr, MPC85xx_PICGCR_RST); while (in_be32(&pic->gcr) & MPC85xx_PICGCR_RST) ; @@ -78,6 +90,10 @@ int interrupt_init_cpu(unsigned int *decrementer_count) pic->ctpr=0; /* 40080 clear current task priority register */ #endif +#ifdef CONFIG_POST + post_word_store(post_word); +#endif + return (0); } |