1 files changed, 31 insertions, 0 deletions

diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
index c4248cbbd84a..914e93c62639 100644
--- a/arch/mips/txx9/generic/setup_tx4927.c
+++ b/arch/mips/txx9/generic/setup_tx4927.c
@@ -252,3 +252,34 @@ void __init tx4927_mtd_init(int ch)
                 return; /* disabled */
         txx9_physmap_flash_init(ch, start, size, &pdata);
 }
+
+static void __init tx4927_stop_unused_modules(void)
+{
+        __u64 pcfg, rst = 0, ckd = 0;
+        char buf[128];
+
+        buf[0] = '\0';
+        local_irq_disable();
+        pcfg = ____raw_readq(&tx4927_ccfgptr->pcfg);
+        if (!(pcfg & TX4927_PCFG_SEL2)) {
+                rst |= TX4927_CLKCTR_ACLRST;
+                ckd |= TX4927_CLKCTR_ACLCKD;
+                strcat(buf, " ACLC");
+        }
+        if (rst | ckd) {
+                txx9_set64(&tx4927_ccfgptr->clkctr, rst);
+                txx9_set64(&tx4927_ccfgptr->clkctr, ckd);
+        }
+        local_irq_enable();
+        if (buf[0])
+                pr_info("%s: stop%s\n", txx9_pcode_str, buf);
+}
+
+static int __init tx4927_late_init(void)
+{
+        if (txx9_pcode != 0x4927)
+                return -ENODEV;
+        tx4927_stop_unused_modules();
+        return 0;
+}
+late_initcall(tx4927_late_init);