diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/interrupts.c | 16 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc86xx/interrupts.c | 16 |
2 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/interrupts.c b/arch/powerpc/cpu/mpc85xx/interrupts.c index a62b031..7ab7113 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); } diff --git a/arch/powerpc/cpu/mpc86xx/interrupts.c b/arch/powerpc/cpu/mpc86xx/interrupts.c index d8ad6d3..14821f4 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; } |