Re: [U-Boot] [PATCH 18/20] rockchip: clk: Support setting ACLK

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