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rockchip: clk: rk3368: support OF_PLATDATA for the RK3368 clk driver

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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
driver for the RK3368.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philipp Tomsich 2017-06-22 23:51:37 +02:00
parent ddfe77df15
commit bee6180126
1 changed files with 17 additions and 0 deletions
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17
drivers/clk/rockchip/clk_rk3368.c
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@ -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,