[U-Boot] [PATCH v3 39/66] rockchip: clk: rk3368: support OF_PLATDATA for the RK3368 clk driver

Philipp Tomsich
2017-07-28T19:22:11Z

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>
---

Changes in v3: None
Changes in v2: None

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,
--
2.1.4