diff options
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/board.c | 18 | ||||
| -rw-r--r-- | arch/powerpc/lib/ticks.S | 7 |
2 files changed, 20 insertions, 5 deletions
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c index fea310e..07feaf5 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -345,6 +345,13 @@ ulong get_effective_memsize(void) #endif } +int __fixup_cpu(void) +{ + return 0; +} + +int fixup_cpu(void) __attribute__((weak, alias("__fixup_cpu"))); + /* * This is the first part of the initialization sequence that is * implemented in C, but still running from ROM. @@ -521,9 +528,8 @@ void board_init_f(ulong bootflag) addr_sp -= 16; addr_sp &= ~0xF; s = (ulong *) addr_sp; - *s-- = 0; - *s-- = 0; - addr_sp = (ulong) s; + *s = 0; /* Terminate back chain */ + *++s = 0; /* NULL return address */ debug("Stack Pointer at: %08lx\n", addr_sp); /* @@ -647,6 +653,12 @@ void board_init_r(gd_t *id, ulong dest_addr) * We need to update it to point to the same CPU entry in RAM. */ gd->cpu += dest_addr - CONFIG_SYS_MONITOR_BASE; + + /* + * If we didn't know the cpu mask & # cores, we can save them of + * now rather than 'computing' them constantly + */ + fixup_cpu(); #endif #ifdef CONFIG_SYS_EXTRA_ENV_RELOC diff --git a/arch/powerpc/lib/ticks.S b/arch/powerpc/lib/ticks.S index b8d25b7..1781039 100644 --- a/arch/powerpc/lib/ticks.S +++ b/arch/powerpc/lib/ticks.S @@ -47,7 +47,9 @@ get_ticks: */ .globl wait_ticks wait_ticks: - mflr r8 /* save link register */ + stwu r1, -16(r1) + mflr r0 /* save link register */ + stw r0, 20(r1) /* Use r0 or GDB will be unhappy */ mr r7, r3 /* save tick count */ bl get_ticks /* Get start time */ @@ -61,5 +63,6 @@ wait_ticks: subfe. r3, r3, r6 bge 1b /* Loop until time expired */ - mtlr r8 /* restore link register */ + mtlr r0 /* restore link register */ + addi r1,r1,16 blr |