85xx: Add support for 'cpu disable' command
Support disabling of a core via user command 'cpu disable'.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c
index 6ae7f0a..826bf32 100644
--- a/cpu/mpc85xx/mp.c
+++ b/cpu/mpc85xx/mp.c
@@ -68,11 +68,35 @@
return 0;
}
+#ifdef CONFIG_FSL_CORENET
int cpu_disable(int nr)
{
- /* dummy function so common/cmd_mp.c will build */
- return 1;
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ setbits_be32(&gur->coredisrl, 1 << nr);
+
+ return 0;
}
+#else
+int cpu_disable(int nr)
+{
+ volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ switch (nr) {
+ case 0:
+ setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_CPU0);
+ break;
+ case 1:
+ setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_CPU1);
+ break;
+ default:
+ printf("Invalid cpu number for disable %d\n", nr);
+ return 1;
+ }
+
+ return 0;
+}
+#endif
static u8 boot_entry_map[4] = {
0,