PPC: Add print_bats() to lib_ppc/bat_rw.c

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>

diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h
index 59f17dec62fc5a21acf0bbc5b169beccd7dca7af..050a7b6472789c9ddae318d610bd6bde169b808a 100644 (file)
--- 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 5f01a63f2af25a7540846aea813a0b02e9c0a2b6..8546333868de00792ae91296ed235a593b0372bc 100644 (file)
--- 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
+}