MIPS: lantiq: add GPHY clock gate bits

Explicitly enable the clock gate of the internal GPHYs found on xrx200.

Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4816/

2 files changed, 10 insertions, 0 deletions

diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
index 544dbb7fb421..1fa0f175357e 100644
--- a/arch/mips/lantiq/xway/reset.c
+++ b/arch/mips/lantiq/xway/reset.c
@@ -78,10 +78,19 @@ static struct ltq_xrx200_gphy_reset {
 /* reset and boot a gphy. these phys only exist on xrx200 SoC */
 int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
 {
+        struct clk *clk;
+
         if (!of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200")) {
                 dev_err(dev, "this SoC has no GPHY\n");
                 return -EINVAL;
         }
+
+        clk = clk_get_sys("1f203000.rcu", "gphy");
+        if (IS_ERR(clk))
+                return PTR_ERR(clk);
+
+        clk_enable(clk);
+
         if (id > 1) {
                 dev_err(dev, "%u is an invalid gphy id\n", id);
                 return -EINVAL;
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 3390fcd6ee56..c24924fe087d 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -376,6 +376,7 @@ void __init ltq_soc_init(void)
                                 PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
                                 PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
                                 PMU_PPE_QSB | PMU_PPE_TOP);
+                clkdev_add_pmu("1f203000.rcu", "gphy", 0, PMU_GPHY);
         } else if (of_machine_is_compatible("lantiq,ar9")) {
                 clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
                                 ltq_ar9_fpi_hz(), CLOCK_250M);