powerpc/mpc8xxx: use topology registers to calculate number of cores
We have actual topology infomation to find out exactly which core is present.
Calculate the number of cores if not specified.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 435ef10..07feaf5 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -345,6 +345,13 @@
#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.
@@ -646,6 +653,12 @@
* 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