| Message ID | 1477946376-29471-19-git-send-email-sjg@chromium.org |
|---|---|
| State | Accepted |
| Commit | 3a8a42d9550cf6779495037ce19c5357eed5ff88 |
| Delegated to: | Simon Glass |
| Headers | show |
Hi Simon, On 11/01/2016 04:39 AM, Simon Glass wrote: > Add basic support for setting the ARM clock, since this allows us to run > at maximum speed in U-Boot. Currently only a single speed is supported > (1.8GHz). > > Signed-off-by: Simon Glass <sjg@chromium.org> > --- > > drivers/clk/rockchip/clk_rk3288.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/clk/rockchip/clk_rk3288.c b/drivers/clk/rockchip/clk_rk3288.c > index ed97e87..d15504c 100644 > --- a/drivers/clk/rockchip/clk_rk3288.c > +++ b/drivers/clk/rockchip/clk_rk3288.c > @@ -691,6 +691,13 @@ static ulong rk3288_clk_set_rate(struct clk *clk, ulong rate) > > gclk_rate = rkclk_pll_get_rate(priv->cru, CLK_GENERAL); > switch (clk->id) { > + case PLL_APLL: > + /* We only support a fixed rate here */ > + if (rate != 1800000000) > + return -EINVAL; > + rk3288_clk_configure_cpu(priv->cru, priv->grf); > + new_rate = rate; > + break; > case CLK_DDR: > new_rate = rkclk_configure_ddr(priv->cru, priv->grf, rate); > break; Reviewed-by: Kever Yang <kever.yang@rock-chips.com> Thanks, - Kever
diff --git a/drivers/clk/rockchip/clk_rk3288.c b/drivers/clk/rockchip/clk_rk3288.c index ed97e87..d15504c 100644 --- a/drivers/clk/rockchip/clk_rk3288.c +++ b/drivers/clk/rockchip/clk_rk3288.c @@ -691,6 +691,13 @@ static ulong rk3288_clk_set_rate(struct clk *clk, ulong rate) gclk_rate = rkclk_pll_get_rate(priv->cru, CLK_GENERAL); switch (clk->id) { + case PLL_APLL: + /* We only support a fixed rate here */ + if (rate != 1800000000) + return -EINVAL; + rk3288_clk_configure_cpu(priv->cru, priv->grf); + new_rate = rate; + break; case CLK_DDR: new_rate = rkclk_configure_ddr(priv->cru, priv->grf, rate); break;
Add basic support for setting the ARM clock, since this allows us to run at maximum speed in U-Boot. Currently only a single speed is supported (1.8GHz). Signed-off-by: Simon Glass <sjg@chromium.org> --- drivers/clk/rockchip/clk_rk3288.c | 7 +++++++ 1 file changed, 7 insertions(+)