[U-Boot] [PATCH 34/52] rockchip: clk: rk3368: support OF_PLATDATA for the RK3368 clk driver

[Andy Yan]

Hi Philipp:


On 2017年07月19日 04:36, Philipp Tomsich wrote:
> With the RK3368's limited TPL size, we'll want to use OF_PLATFDATA for
> the SPL stage.  This implements support for OF_PLATDATA in the clock

     TPL or SPL?
> driver for the RK3368.


> Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> ---
>
>   drivers/clk/rockchip/clk_rk3368.c | 17 +++++++++++++++++
>   1 file changed, 17 insertions(+)
>
> diff --git a/drivers/clk/rockchip/clk_rk3368.c b/drivers/clk/rockchip/clk_rk3368.c
> index d8f06d5..809ad19 100644
> --- a/drivers/clk/rockchip/clk_rk3368.c
> +++ b/drivers/clk/rockchip/clk_rk3368.c
> @@ -8,7 +8,9 @@
>   #include <common.h>
>   #include <clk-uclass.h>
>   #include <dm.h>
> +#include <dt-structs.h>
>   #include <errno.h>
> +#include <mapmem.h>
>   #include <syscon.h>
>   #include <asm/arch/clock.h>
>   #include <asm/arch/cru_rk3368.h>
> @@ -19,6 +21,12 @@
>   
>   DECLARE_GLOBAL_DATA_PTR;
>   
> +#if CONFIG_IS_ENABLED(OF_PLATDATA)
> +struct rk3368_clk_plat {
> +	struct dtd_rockchip_rk3368_cru dtd;
> +};
> +#endif
> +
>   struct pll_div {
>   	u32 nr;
>   	u32 nf;
> @@ -254,7 +262,11 @@ static struct clk_ops rk3368_clk_ops = {
>   static int rk3368_clk_probe(struct udevice *dev)
>   {
>   	struct rk3368_clk_priv *priv = dev_get_priv(dev);
> +#if CONFIG_IS_ENABLED(OF_PLATDATA)
> +	struct rk3368_clk_plat *plat = dev_get_platdata(dev);
>   
> +	priv->cru = map_sysmem(plat->dtd.reg[1], plat->dtd.reg[3]);
> +#endif
>   	rkclk_init(priv->cru);
>   
>   	return 0;
> @@ -262,9 +274,11 @@ static int rk3368_clk_probe(struct udevice *dev)
>   
>   static int rk3368_clk_ofdata_to_platdata(struct udevice *dev)
>   {
> +#if !CONFIG_IS_ENABLED(OF_PLATDATA)
>   	struct rk3368_clk_priv *priv = dev_get_priv(dev);
>   
>   	priv->cru = (struct rk3368_cru *)devfdt_get_addr(dev);
> +#endif
>   
>   	return 0;
>   }
> @@ -291,6 +305,9 @@ U_BOOT_DRIVER(rockchip_rk3368_cru) = {
>   	.id		= UCLASS_CLK,
>   	.of_match	= rk3368_clk_ids,
>   	.priv_auto_alloc_size = sizeof(struct rk3368_clk_priv),
> +#if CONFIG_IS_ENABLED(OF_PLATDATA)
> +	.platdata_auto_alloc_size = sizeof(struct rk3368_clk_plat),
> +#endif
>   	.ofdata_to_platdata = rk3368_clk_ofdata_to_platdata,
>   	.ops		= &rk3368_clk_ops,
>   	.bind		= rk3368_clk_bind,