From: Becky Bruce becky.bruce@freescale.com
This function prints the values of all the BAT register pairs - I needed this for debug earlier this week; adding it to lib_ppc so others can use it (and add it to reginfo commands if so desired).
Signed-off-by: Becky Bruce becky.bruce@freescale.com --- Resend - eliminate accidental spaces instead of tabs.
include/asm-ppc/mmu.h | 1 + lib_ppc/bat_rw.c | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h index dc4d66c..1e3c2cb 100644 --- a/include/asm-ppc/mmu.h +++ b/include/asm-ppc/mmu.h @@ -149,6 +149,7 @@ typedef enum {
extern int read_bat(ppc_bat_t bat, unsigned long *upper, unsigned long *lower); extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower); +extern void print_bats(void);
#endif /* __ASSEMBLY__ */
diff --git a/lib_ppc/bat_rw.c b/lib_ppc/bat_rw.c index c87d8b2..548d064 100644 --- a/lib_ppc/bat_rw.c +++ b/lib_ppc/bat_rw.c @@ -183,3 +183,44 @@ int read_bat (ppc_bat_t bat, unsigned long *upper, unsigned long *lower)
return (0); } + +void print_bats(void) +{ + printf("BAT registers:\n"); + + printf ("\tIBAT0L = 0x%08X ", mfspr (IBAT0L)); + printf ("\tIBAT0U = 0x%08X\n", mfspr (IBAT0U)); + printf ("\tDBAT0L = 0x%08X ", mfspr (DBAT0L)); + printf ("\tDBAT0U = 0x%08X\n", mfspr (DBAT0U)); + printf ("\tIBAT1L = 0x%08X ", mfspr (IBAT1L)); + printf ("\tIBAT1U = 0x%08X\n", mfspr (IBAT1U)); + printf ("\tDBAT1L = 0x%08X ", mfspr (DBAT1L)); + printf ("\tDBAT1U = 0x%08X\n", mfspr (DBAT1U)); + printf ("\tIBAT2L = 0x%08X ", mfspr (IBAT2L)); + printf ("\tIBAT2U = 0x%08X\n", mfspr (IBAT2U)); + printf ("\tDBAT2L = 0x%08X ", mfspr (DBAT2L)); + printf ("\tDBAT2U = 0x%08X\n", mfspr (DBAT2U)); + printf ("\tIBAT3L = 0x%08X ", mfspr (IBAT3L)); + printf ("\tIBAT3U = 0x%08X\n", mfspr (IBAT3U)); + printf ("\tDBAT3L = 0x%08X ", mfspr (DBAT3L)); + printf ("\tDBAT3U = 0x%08X\n", mfspr (DBAT3U)); + +#ifdef CONFIG_HIGH_BATS + printf ("\tIBAT4L = 0x%08X ", mfspr (IBAT4L)); + printf ("\tIBAT4U = 0x%08X\n", mfspr (IBAT4U)); + printf ("\tDBAT4L = 0x%08X ", mfspr (DBAT4L)); + printf ("\tDBAT4U = 0x%08X\n", mfspr (DBAT4U)); + printf ("\tIBAT5L = 0x%08X ", mfspr (IBAT5L)); + printf ("\tIBAT5U = 0x%08X\n", mfspr (IBAT5U)); + printf ("\tDBAT5L = 0x%08X ", mfspr (DBAT5L)); + printf ("\tDBAT5U = 0x%08X\n", mfspr (DBAT5U)); + printf ("\tIBAT6L = 0x%08X ", mfspr (IBAT6L)); + printf ("\tIBAT6U = 0x%08X\n", mfspr (IBAT6U)); + printf ("\tDBAT6L = 0x%08X ", mfspr (DBAT6L)); + printf ("\tDBAT6U = 0x%08X\n", mfspr (DBAT6U)); + printf ("\tIBAT7L = 0x%08X ", mfspr (IBAT7L)); + printf ("\tIBAT7U = 0x%08X\n", mfspr (IBAT7U)); + printf ("\tDBAT7L = 0x%08X ", mfspr (DBAT7L)); + printf ("\tDBAT7U = 0x%08X\n", mfspr (DBAT7U)); +#endif +}