Add DM CLK driver for iMX6QDL platform.
- basic template for clk_imx6qdl.c
- Kconfig support
Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
drivers/clk/Kconfig | 1 +
drivers/clk/Makefile | 1 +
drivers/clk/imx/Kconfig | 18 +++++++++
drivers/clk/imx/Makefile | 7 ++++
drivers/clk/imx/clk_imx6q.c | 76 +++++++++++++++++++++++++++++++++++++
drivers/video/ipu_common.c | 8 ++++
6 files changed, 111 insertions(+)
create mode 100644 drivers/clk/imx/Kconfig
create mode 100644 drivers/clk/imx/Makefile
create mode 100644 drivers/clk/imx/clk_imx6q.c
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index a99abed9e9..0a535e49d4 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -85,6 +85,7 @@ config CLK_STM32MP1
source "drivers/clk/at91/Kconfig"
source "drivers/clk/exynos/Kconfig"
+source "drivers/clk/imx/Kconfig"
source "drivers/clk/mvebu/Kconfig"
source "drivers/clk/owl/Kconfig"
source "drivers/clk/renesas/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 146283c723..c3288b096f 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_CLK_BCM6345) += clk_bcm6345.o
obj-$(CONFIG_CLK_BOSTON) += clk_boston.o
obj-$(CONFIG_CLK_EXYNOS) += exynos/
obj-$(CONFIG_CLK_HSDK) += clk-hsdk-cgu.o
+obj-$(CONFIG_CLK_IMX) += imx/
obj-$(CONFIG_CLK_OWL) += owl/
obj-$(CONFIG_CLK_RENESAS) += renesas/
obj-$(CONFIG_CLK_STM32F) += clk_stm32f.o
diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
new file mode 100644
index 0000000000..f8de5554c8
--- /dev/null
+++ b/drivers/clk/imx/Kconfig
@@ -0,0 +1,18 @@
+config CLK_IMX
+ bool "Clock support for i.MX SoCs"
+ depends on ARCH_MX6
+ select CLK
+ help
+ This enables support for common clock driver API on i.MX
+ SoCs.
+
+if CLK_IMX
+
+config CLK_IMX6Q
+ bool "Clock driver for i.MX6QDL"
+ default MX6QDL
+ help
+ This enables common clock driver support for platforms based
+ on i.MX6 QDL SoC.
+
+endif # CLK_IMX
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
new file mode 100644
index 0000000000..8ae3a50eba
--- /dev/null
+++ b/drivers/clk/imx/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2018 Arm Ltd.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-$(CONFIG_CLK_IMX6Q) += clk_imx6q.o
diff --git a/drivers/clk/imx/clk_imx6q.c b/drivers/clk/imx/clk_imx6q.c
new file mode 100644
index 0000000000..3019218411
--- /dev/null
+++ b/drivers/clk/imx/clk_imx6q.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2018 Amarula Solutions B.V.
+ * Author: Jagan Teki <ja...@amarulasolutions.com>
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <errno.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <dt-bindings/clock/imx6qdl-clock.h>
+
+struct imx6q_clk_priv {
+ void *base;
+};
+
+static ulong imx6q_clk_get_rate(struct clk *clk)
+{
+ debug("%s(#%ld)\n", __func__, clk->id);
+
+ debug(" unhandled\n");
+ return -EINVAL;
+}
+
+static ulong imx6q_clk_set_rate(struct clk *clk, ulong rate)
+{
+ debug("%s(#%ld, rate: %lu)\n", __func__, clk->id, rate);
+
+ debug(" unhandled\n");
+ return -EINVAL;
+}
+
+static int imx6q_clk_enable(struct clk *clk)
+{
+ debug("%s(#%ld)\n", __func__, clk->id);
+
+ debug(" unhandled\n");
+ return -EINVAL;
+}
+
+static struct clk_ops imx6q_clk_ops = {
+ .get_rate = imx6q_clk_get_rate,
+ .set_rate = imx6q_clk_set_rate,
+ .enable = imx6q_clk_enable,
+};
+
+static int imx6q_clk_probe(struct udevice *dev)
+{
+ return 0;
+}
+
+static int imx6q_clk_ofdata_to_platdata(struct udevice *dev)
+{
+ struct imx6q_clk_priv *priv = dev_get_priv(dev);
+
+ priv->base = dev_read_addr_ptr(dev);
+
+ return 0;
+}
+
+static const struct udevice_id imx6q_clk_ids[] = {
+ { .compatible = "fsl,imx6q-ccm" },
+ { }
+};
+
+U_BOOT_DRIVER(fsl_imx6q_ccm) = {
+ .name = "fsl_imx6q_ccm",
+ .id = UCLASS_CLK,
+ .of_match = imx6q_clk_ids,
+ .priv_auto_alloc_size = sizeof(struct imx6q_clk_priv),
+ .ofdata_to_platdata = imx6q_clk_ofdata_to_platdata,
+ .ops = &imx6q_clk_ops,
+ .probe = imx6q_clk_probe,
+};
diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index cbe1984e4f..9725f76477 100644
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -86,6 +86,7 @@ struct ipu_ch_param {
#define IPUV3_CLK_MX6Q 264000000
#define IPUV3_CLK_MX6DL 198000000
+#ifndef CONFIG_CLK
void clk_enable(struct clk *clk)
{
if (clk) {
@@ -104,6 +105,7 @@ void clk_disable(struct clk *clk)
}
}
}
+#endif
int clk_get_usecount(struct clk *clk)
{
@@ -113,6 +115,7 @@ int clk_get_usecount(struct clk *clk)
return clk->usecount;
}
+#ifndef CONFIG_CLK
u32 clk_get_rate(struct clk *clk)
{
if (!clk)
@@ -120,6 +123,7 @@ u32 clk_get_rate(struct clk *clk)
return clk->rate;
}
+#endif
struct clk *clk_get_parent(struct clk *clk)
{
@@ -129,6 +133,7 @@ struct clk *clk_get_parent(struct clk *clk)
return clk->parent;
}
+#ifndef CONFIG_CLK
int clk_set_rate(struct clk *clk, unsigned long rate)
{
if (!clk)
@@ -139,6 +144,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
return clk->rate;
}
+#endif
long clk_round_rate(struct clk *clk, unsigned long rate)
{
@@ -148,6 +154,7 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
return clk->round_rate(clk, rate);
}
+#ifndef CONFIG_CLK
int clk_set_parent(struct clk *clk, struct clk *parent)
{
clk->parent = parent;
@@ -155,6 +162,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
return clk->set_parent(clk, parent);
return 0;
}
+#endif
static int clk_ipu_enable(struct clk *clk)
{
--
2.18.0.321.gffc6fa0e3
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