MIPS: TXx9: stop_unused_modules

[linux-2.6-omap-h63xx.git] / arch / mips / txx9 / generic / setup_tx4927.c

diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
index c4248cbbd84a923a4e3fbf7292601b372b380a2d..914e93c62639616690fda1c5cfd02d3b254ae877 100644 (file)
--- 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);