[U-Boot] [PATCH 04/11] clk: MediaTek: bind ethsys reset controller

[Weijie Gao]

The ethsys contains not only the clock gating controller, but also the
reset controller for the whole ethernet subsystem and its components.

This patch adds binding of the reset controller so that the ethernet node
can have references on it.

Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
---
 drivers/clk/mediatek/clk-mt7623.c | 15 +++++++++++++++
 drivers/clk/mediatek/clk-mt7629.c | 15 +++++++++++++++
 drivers/clk/mediatek/clk-mtk.h    |  2 ++
 3 files changed, 32 insertions(+)

diff --git a/drivers/clk/mediatek/clk-mt7623.c b/drivers/clk/mediatek/clk-mt7623.c
index c6b09d8e18d..87ad4f79ced 100644
--- a/drivers/clk/mediatek/clk-mt7623.c
+++ b/drivers/clk/mediatek/clk-mt7623.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <asm/arch-mediatek/reset.h>
 #include <asm/io.h>
 #include <dt-bindings/clock/mt7623-clk.h>
 
@@ -782,6 +783,19 @@ static int mt7623_ethsys_probe(struct udevice *dev)
 	return mtk_common_clk_gate_init(dev, &mt7623_clk_tree, eth_cgs);
 }
 
+static int mt7623_ethsys_bind(struct udevice *dev)
+{
+	int ret = 0;
+
+#if CONFIG_IS_ENABLED(RESET_MEDIATEK)
+	ret = mediatek_reset_bind(dev, ETHSYS_RST_CTRL_OFS, 1);
+	if (ret)
+		debug("Warning: failed to bind ethsys reset controller\n");
+#endif
+
+	return ret;
+}
+
 static const struct udevice_id mt7623_apmixed_compat[] = {
 	{ .compatible = "mediatek,mt7623-apmixedsys" },
 	{ }
@@ -865,6 +879,7 @@ U_BOOT_DRIVER(mtk_clk_ethsys) = {
 	.id = UCLASS_CLK,
 	.of_match = mt7623_ethsys_compat,
 	.probe = mt7623_ethsys_probe,
+	.bind = mt7623_ethsys_bind,
 	.priv_auto_alloc_size = sizeof(struct mtk_cg_priv),
 	.ops = &mtk_clk_gate_ops,
 };
diff --git a/drivers/clk/mediatek/clk-mt7629.c b/drivers/clk/mediatek/clk-mt7629.c
index 2601b6cf30d..6a9f60139c0 100644
--- a/drivers/clk/mediatek/clk-mt7629.c
+++ b/drivers/clk/mediatek/clk-mt7629.c
@@ -8,6 +8,7 @@
 
 #include <common.h>
 #include <dm.h>
+#include <asm/arch-mediatek/reset.h>
 #include <asm/io.h>
 #include <dt-bindings/clock/mt7629-clk.h>
 
@@ -602,6 +603,19 @@ static int mt7629_ethsys_probe(struct udevice *dev)
 	return mtk_common_clk_gate_init(dev, &mt7629_clk_tree, eth_cgs);
 }
 
+static int mt7629_ethsys_bind(struct udevice *dev)
+{
+	int ret = 0;
+
+#if CONFIG_IS_ENABLED(RESET_MEDIATEK)
+	ret = mediatek_reset_bind(dev, ETHSYS_RST_CTRL_OFS, 1);
+	if (ret)
+		debug("Warning: failed to bind ethsys reset controller\n");
+#endif
+
+	return ret;
+}
+
 static int mt7629_sgmiisys_probe(struct udevice *dev)
 {
 	return mtk_common_clk_gate_init(dev, &mt7629_clk_tree, sgmii_cgs);
@@ -695,6 +709,7 @@ U_BOOT_DRIVER(mtk_clk_ethsys) = {
 	.id = UCLASS_CLK,
 	.of_match = mt7629_ethsys_compat,
 	.probe = mt7629_ethsys_probe,
+	.bind = mt7629_ethsys_bind,
 	.priv_auto_alloc_size = sizeof(struct mtk_cg_priv),
 	.ops = &mtk_clk_gate_ops,
 };
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index 74152ed9c6e..7847388b2a1 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -23,6 +23,8 @@
 #define CLK_PARENT_TOPCKGEN		BIT(5)
 #define CLK_PARENT_MASK			GENMASK(5, 4)
 
+#define ETHSYS_RST_CTRL_OFS		0x34
+
 /* struct mtk_pll_data - hardware-specific PLLs data */
 struct mtk_pll_data {
 	const int id;
-- 
2.18.0