| 1 | From 05d6c964722224e8cf2902606744e29a835e7d5f Mon Sep 17 00:00:00 2001 |
| 2 | From: John Crispin <blogic@openwrt.org> |
| 3 | Date: Mon, 3 Dec 2012 21:35:01 +0100 |
| 4 | Subject: [PATCH 102/123] MIPS: lantiq: add GPHY clock gate bits |
| 5 | |
| 6 | Explicitly enable the clock gate of the internal GPHYs found on xrx200. |
| 7 | |
| 8 | Signed-off-by: John Crispin <blogic@openwrt.org> |
| 9 | --- |
| 10 | arch/mips/lantiq/xway/reset.c | 9 +++++++++ |
| 11 | arch/mips/lantiq/xway/sysctrl.c | 1 + |
| 12 | 2 files changed, 10 insertions(+) |
| 13 | |
| 14 | diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c |
| 15 | index 544dbb7..1fa0f17 100644 |
| 16 | --- a/arch/mips/lantiq/xway/reset.c |
| 17 | +++ b/arch/mips/lantiq/xway/reset.c |
| 18 | @@ -78,10 +78,19 @@ static struct ltq_xrx200_gphy_reset { |
| 19 | /* reset and boot a gphy. these phys only exist on xrx200 SoC */ |
| 20 | int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr) |
| 21 | { |
| 22 | + struct clk *clk; |
| 23 | + |
| 24 | if (!of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200")) { |
| 25 | dev_err(dev, "this SoC has no GPHY\n"); |
| 26 | return -EINVAL; |
| 27 | } |
| 28 | + |
| 29 | + clk = clk_get_sys("1f203000.rcu", "gphy"); |
| 30 | + if (IS_ERR(clk)) |
| 31 | + return PTR_ERR(clk); |
| 32 | + |
| 33 | + clk_enable(clk); |
| 34 | + |
| 35 | if (id > 1) { |
| 36 | dev_err(dev, "%u is an invalid gphy id\n", id); |
| 37 | return -EINVAL; |
| 38 | diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c |
| 39 | index 3925e66..6e0e135 100644 |
| 40 | --- a/arch/mips/lantiq/xway/sysctrl.c |
| 41 | +++ b/arch/mips/lantiq/xway/sysctrl.c |
| 42 | @@ -374,6 +374,7 @@ void __init ltq_soc_init(void) |
| 43 | PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM | |
| 44 | PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 | |
| 45 | PMU_PPE_QSB | PMU_PPE_TOP); |
| 46 | + clkdev_add_pmu("1f203000.rcu", "gphy", 0, PMU_GPHY); |
| 47 | } else if (of_machine_is_compatible("lantiq,ar9")) { |
| 48 | clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(), |
| 49 | ltq_ar9_fpi_hz()); |
| 50 | -- |
| 51 | 1.7.10.4 |
| 52 | |
| 53 | |
