MIPS: Netlogic: Core wakeup changes for XLP2XX

On XLP2xx, wakeup code does not need to enable clock on the core.
Update xlp/wakeup.c to handle this.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5703/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/arch/mips/netlogic/xlp/wakeup.c b/arch/mips/netlogic/xlp/wakeup.c
index 0cce37cbffef..682d5638dc01 100644
--- a/arch/mips/netlogic/xlp/wakeup.c
+++ b/arch/mips/netlogic/xlp/wakeup.c
@@ -58,10 +58,12 @@ static int xlp_wakeup_core(uint64_t sysbase, int node, int core)
 
         coremask = (1 << core);
 
-        /* Enable CPU clock */
-        value = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIS_CTRL);
-        value &= ~coremask;
-        nlm_write_sys_reg(sysbase, SYS_CORE_DFS_DIS_CTRL, value);
+        /* Enable CPU clock in case of 8xx/3xx */
+        if (!cpu_is_xlpii()) {
+                value = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIS_CTRL);
+                value &= ~coremask;
+                nlm_write_sys_reg(sysbase, SYS_CORE_DFS_DIS_CTRL, value);
+        }
 
         /* Remove CPU Reset */
         value = nlm_read_sys_reg(sysbase, SYS_CPU_RESET);