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[PATCH 3/5] MIPS: lantiq: add GPHY clock gate bits

To: Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH 3/5] MIPS: lantiq: add GPHY clock gate bits
From: John Crispin <blogic@openwrt.org>
Date: Sat, 19 Jan 2013 10:54:25 +0100
Cc: linux-mips@linux-mips.org, John Crispin <blogic@openwrt.org>
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Explicitly enable the clock gate of the internal GPHYs found on xrx200.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/lantiq/xway/reset.c   |    9 +++++++++
 arch/mips/lantiq/xway/sysctrl.c |    1 +
 2 files changed, 10 insertions(+)

diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
index 544dbb7..1fa0f17 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 3390fcd..c24924f 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);
-- 
1.7.10.4


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