clk: uniphier: add Media I/O clock driver for UniPhier SoCs

This is the initial commit for the UniPhier clock drivers.
Currently, only the Media I/O clock is supported.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

1 files changed, 178 insertions, 0 deletions

diff --git a/drivers/clk/uniphier/clk-uniphier-mio.c b/drivers/clk/uniphier/clk-uniphier-mio.c
new file mode 100644
index 0000000..d91ae34
--- /dev/null
+++ b/drivers/clk/uniphier/clk-uniphier-mio.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <clk.h>
+#include <dm/device.h>
+
+#include "clk-uniphier.h"
+
+#define UNIPHIER_MIO_CLK_GATE_SD(ch, idx)	\
+	{					\
+		.index = (idx),			\
+		.reg = 0x20 + 0x200 * (ch),	\
+		.mask = 0x00000100,		\
+		.data = 0x00000100,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x110 + 0x200 * (ch),	\
+		.mask = 0x00000001,		\
+		.data = 0x00000001,		\
+	}
+
+#define UNIPHIER_MIO_CLK_RATE_SD(ch, idx)	\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00000000,		\
+		.rate = 44444444,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00010000,		\
+		.rate = 33333333,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00020000,		\
+		.rate = 50000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00020000,		\
+		.rate = 66666666,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00001000,		\
+		.rate = 100000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00001100,		\
+		.rate = 40000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00001200,		\
+		.rate = 25000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x30 + 0x200 * (ch),	\
+		.mask = 0x00031300,		\
+		.data = 0x00001300,		\
+		.rate = 22222222,		\
+	}
+
+#define UNIPHIER_MIO_CLK_GATE_USB(ch, idx)	\
+	{					\
+		.index = (idx),			\
+		.reg = 0x20 + 0x200 * (ch),	\
+		.mask = 0x30000000,		\
+		.data = 0x30000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x110 + 0x200 * (ch),	\
+		.mask = 0x01000000,		\
+		.data = 0x01000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x114 + 0x200 * (ch),	\
+		.mask = 0x00000001,		\
+		.data = 0x00000001,		\
+	}
+
+#define UNIPHIER_MIO_CLK_GATE_DMAC(idx)		\
+	{					\
+		.index = (idx),			\
+		.reg = 0x20,			\
+		.mask = 0x02000000,		\
+		.data = 0x02000000,		\
+	},					\
+	{					\
+		.index = (idx),			\
+		.reg = 0x110,			\
+		.mask = 0x00020000,		\
+		.data = 0x00020000,		\
+	}
+
+static struct uniphier_clk_gate_data uniphier_mio_clk_gate[] = {
+	UNIPHIER_MIO_CLK_GATE_SD(0, 0),
+	UNIPHIER_MIO_CLK_GATE_SD(1, 1),
+	UNIPHIER_MIO_CLK_GATE_SD(2, 2),		/* for PH1-Pro4 only */
+	UNIPHIER_MIO_CLK_GATE_USB(0, 3),
+	UNIPHIER_MIO_CLK_GATE_USB(1, 4),
+	UNIPHIER_MIO_CLK_GATE_USB(2, 5),
+	UNIPHIER_MIO_CLK_GATE_DMAC(6),
+	UNIPHIER_MIO_CLK_GATE_USB(3, 7),	/* for PH1-sLD3 only */
+};
+
+static struct uniphier_clk_rate_data uniphier_mio_clk_rate[] = {
+	UNIPHIER_MIO_CLK_RATE_SD(0, 0),
+	UNIPHIER_MIO_CLK_RATE_SD(1, 1),
+	UNIPHIER_MIO_CLK_RATE_SD(2, 2),		/* for PH1-Pro4 only */
+};
+
+static struct uniphier_clk_soc_data uniphier_mio_clk_data = {
+	.gate = uniphier_mio_clk_gate,
+	.nr_gate = ARRAY_SIZE(uniphier_mio_clk_gate),
+	.rate = uniphier_mio_clk_rate,
+	.nr_rate = ARRAY_SIZE(uniphier_mio_clk_rate),
+};
+
+static const struct udevice_id uniphier_mio_clk_match[] = {
+	{
+		.compatible = "socionext,ph1-sld3-mioctrl",
+		.data = (ulong)&uniphier_mio_clk_data,
+	},
+	{
+		.compatible = "socionext,ph1-ld4-mioctrl",
+		.data = (ulong)&uniphier_mio_clk_data,
+	},
+	{
+		.compatible = "socionext,ph1-pro4-mioctrl",
+		.data = (ulong)&uniphier_mio_clk_data,
+	},
+	{
+		.compatible = "socionext,ph1-sld8-mioctrl",
+		.data = (ulong)&uniphier_mio_clk_data,
+	},
+	{
+		.compatible = "socionext,ph1-pro5-mioctrl",
+		.data = (ulong)&uniphier_mio_clk_data,
+	},
+	{
+		.compatible = "socionext,proxstream2-mioctrl",
+		.data = (ulong)&uniphier_mio_clk_data,
+	},
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(uniphier_mio_clk) = {
+	.name = "uniphier-mio-clk",
+	.id = UCLASS_CLK,
+	.of_match = uniphier_mio_clk_match,
+	.probe = uniphier_clk_probe,
+	.remove = uniphier_clk_remove,
+	.priv_auto_alloc_size = sizeof(struct uniphier_clk_priv),
+	.ops = &uniphier_clk_ops,
+};