[RFC PATCH 10/21] clk: uniphier: add clock driver for Media I/O block on UniPhier SoCs
Masahiro Yamada
yamada.masahiro at socionext.com
Tue May 10 02:50:51 PDT 2016
This series is just for review.
Please do not apply this patch.
Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
---
drivers/clk/uniphier/Kconfig | 4 +
drivers/clk/uniphier/Makefile | 2 +
drivers/clk/uniphier/clk-uniphier-mio.c | 215 ++++++++++++++++++++++++++++++++
3 files changed, 221 insertions(+)
create mode 100644 drivers/clk/uniphier/clk-uniphier-mio.c
diff --git a/drivers/clk/uniphier/Kconfig b/drivers/clk/uniphier/Kconfig
index 6e0a311..895c4a0 100644
--- a/drivers/clk/uniphier/Kconfig
+++ b/drivers/clk/uniphier/Kconfig
@@ -34,4 +34,8 @@ config CLK_UNIPHIER_LD20
tristate "Clock driver for UniPhier PH1-LD20 SoC"
default ARM64
+config CLK_UNIPHIER_MIO
+ tristate "Clock driver for UniPhier Media I/O block"
+ default y
+
endif
diff --git a/drivers/clk/uniphier/Makefile b/drivers/clk/uniphier/Makefile
index 59272a6..ae71f04 100644
--- a/drivers/clk/uniphier/Makefile
+++ b/drivers/clk/uniphier/Makefile
@@ -11,3 +11,5 @@ obj-$(CONFIG_CLK_UNIPHIER_PRO5) += clk-uniphier-pro5.o
obj-$(CONFIG_CLK_UNIPHIER_PXS2) += clk-uniphier-pxs2.o
obj-$(CONFIG_CLK_UNIPHIER_LD11) += clk-uniphier-ld11.o
obj-$(CONFIG_CLK_UNIPHIER_LD20) += clk-uniphier-ld20.o
+
+obj-$(CONFIG_CLK_UNIPHIER_MIO) += clk-uniphier-mio.o
diff --git a/drivers/clk/uniphier/clk-uniphier-mio.c b/drivers/clk/uniphier/clk-uniphier-mio.c
new file mode 100644
index 0000000..28691b7
--- /dev/null
+++ b/drivers/clk/uniphier/clk-uniphier-mio.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro at socionext.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+#include "clk-uniphier.h"
+
+#define UNIPHIER_MIO_CLK_SD_FIXED \
+ { \
+ .name = "sd-44m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 44444444, \
+ }, \
+ }, \
+ { \
+ .name = "sd-33m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 33333333, \
+ }, \
+ }, \
+ { \
+ .name = "sd-50m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 50000000, \
+ }, \
+ }, \
+ { \
+ .name = "sd-67m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 66666666, \
+ }, \
+ }, \
+ { \
+ .name = "sd-100m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 100000000, \
+ }, \
+ }, \
+ { \
+ .name = "sd-40m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 40000000, \
+ }, \
+ }, \
+ { \
+ .name = "sd-25m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 25000000, \
+ }, \
+ }, \
+ { \
+ .name = "sd-22m", \
+ .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \
+ .output_index = -1, \
+ .data.rate = { \
+ .fixed_rate = 22222222, \
+ }, \
+ }
+
+#define UNIPHIER_MIO_CLK_SD(ch, index) \
+ { \
+ .name = "sd" #ch "-sel", \
+ .type = UNIPHIER_CLK_TYPE_MUX, \
+ .output_index = -1, \
+ .data.mux = { \
+ .parent_names = { \
+ "sd-44m", \
+ "sd-33m", \
+ "sd-50m", \
+ "sd-67m", \
+ "sd-100m", \
+ "sd-40m", \
+ "sd-25m", \
+ "sd-22m", \
+ }, \
+ .num_parents = 8, \
+ .reg = 0x30 + 0x200 * ch, \
+ .masks = { \
+ 0x00031000, \
+ 0x00031000, \
+ 0x00031000, \
+ 0x00031000, \
+ 0x00001300, \
+ 0x00001300, \
+ 0x00001300, \
+ 0x00001300, \
+ }, \
+ .vals = { \
+ 0x00000000, \
+ 0x00010000, \
+ 0x00020000, \
+ 0x00030000, \
+ 0x00001000, \
+ 0x00001100, \
+ 0x00001200, \
+ 0x00001300, \
+ }, \
+ }, \
+ }, \
+ { \
+ .name = "sd" #ch, \
+ .type = UNIPHIER_CLK_TYPE_GATE, \
+ .output_index = (index), \
+ .data.gate = { \
+ .parent_name = "sd" #ch "-sel", \
+ .reg = 0x20 + 0x200 * ch, \
+ .mask = BIT(8), \
+ .enable_val = BIT(8), \
+ }, \
+ }
+
+#define UNIPHIER_MIO_CLK_EHCI(ch, index) \
+ { \
+ .name = "ehci" #ch, \
+ .type = UNIPHIER_CLK_TYPE_GATE, \
+ .output_index = (index), \
+ .data.gate = { \
+ .parent_name = "ehci", \
+ .reg = 0x20 + 0x200 * ch, \
+ .mask = BIT(29) | BIT(28), \
+ .enable_val = BIT(29) | BIT(28), \
+ }, \
+ }
+
+#define UNIPHIER_MIO_CLK_DMAC(index) \
+ { \
+ .name = "miodmac", \
+ .type = UNIPHIER_CLK_TYPE_GATE, \
+ .output_index = (index), \
+ .data.gate = { \
+ .parent_name = "stdmac", \
+ .reg = 0x20, \
+ .mask = BIT(25), \
+ .enable_val = BIT(25), \
+ }, \
+ }
+
+static const struct uniphier_clk_data uniphier_ld4_mio_clk_data[] = {
+ UNIPHIER_MIO_CLK_SD_FIXED,
+ UNIPHIER_MIO_CLK_SD(0, 0),
+ UNIPHIER_MIO_CLK_SD(1, 1),
+ UNIPHIER_MIO_CLK_SD(2, 2), /* for Pro4 */
+ UNIPHIER_MIO_CLK_DMAC(3),
+ UNIPHIER_MIO_CLK_EHCI(0, 4),
+ UNIPHIER_MIO_CLK_EHCI(1, 5),
+ UNIPHIER_MIO_CLK_EHCI(2, 6), /* for LD4/sLD8 */
+ { /* sentinel */ }
+};
+
+static int uniphier_ld4_mio_clk_probe(struct platform_device *pdev)
+{
+ return uniphier_clk_probe(pdev, uniphier_ld4_mio_clk_data);
+}
+
+static struct platform_driver uniphier_ld4_mio_clk_driver = {
+ .probe = uniphier_ld4_mio_clk_probe,
+ .remove = uniphier_clk_remove,
+ .driver = {
+ .name = "uniphier-ld4-mio-clk",
+ },
+};
+module_platform_driver(uniphier_ld4_mio_clk_driver);
+
+static const struct uniphier_clk_data uniphier_pro5_mio_clk_data[] = {
+ UNIPHIER_MIO_CLK_SD_FIXED,
+ UNIPHIER_MIO_CLK_SD(0, 0),
+ UNIPHIER_MIO_CLK_SD(1, 1),
+ { /* sentinel */ }
+};
+
+static int uniphier_pro5_mio_clk_probe(struct platform_device *pdev)
+{
+ return uniphier_clk_probe(pdev, uniphier_pro5_mio_clk_data);
+}
+
+static struct platform_driver uniphier_pro5_mio_clk_driver = {
+ .probe = uniphier_pro5_mio_clk_probe,
+ .remove = uniphier_clk_remove,
+ .driver = {
+ .name = "uniphier-pro5-mio-clk",
+ },
+};
+module_platform_driver(uniphier_pro5_mio_clk_driver);
+
+MODULE_AUTHOR("Masahiro Yamada <yamada.masahiro at socionext.com>");
+MODULE_DESCRIPTION("UniPhier Media I/O Clock Driver");
+MODULE_LICENSE("GPL");
--
1.9.1
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