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-rw-r--r--drivers/clk/Kconfig8
-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/clk_boston.c97
-rw-r--r--drivers/clk/uniphier/clk-uniphier-core.c94
-rw-r--r--drivers/clk/uniphier/clk-uniphier-mio.c51
-rw-r--r--drivers/clk/uniphier/clk-uniphier.h18
6 files changed, 187 insertions, 82 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 8f3b96a9736..c05ce2a9efa 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -20,6 +20,14 @@ config SPL_CLK
setting up clocks within SPL, and allows the same drivers to be
used as U-Boot proper.
+config CLK_BOSTON
+ def_bool y if TARGET_BOSTON
+ depends on CLK
+ select REGMAP
+ select SYSCON
+ help
+ Enable this to support the clocks
+
source "drivers/clk/tegra/Kconfig"
source "drivers/clk/uniphier/Kconfig"
source "drivers/clk/exynos/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 778d7486f06..40a5e8cae86 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -15,3 +15,4 @@ obj-y += tegra/
obj-$(CONFIG_CLK_UNIPHIER) += uniphier/
obj-$(CONFIG_CLK_EXYNOS) += exynos/
obj-$(CONFIG_CLK_AT91) += at91/
+obj-$(CONFIG_CLK_BOSTON) += clk_boston.o
diff --git a/drivers/clk/clk_boston.c b/drivers/clk/clk_boston.c
new file mode 100644
index 00000000000..78f1b759d83
--- /dev/null
+++ b/drivers/clk/clk_boston.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2016 Imagination Technologies
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <dt-bindings/clock/boston-clock.h>
+#include <regmap.h>
+#include <syscon.h>
+
+struct clk_boston {
+ struct regmap *regmap;
+};
+
+#define BOSTON_PLAT_MMCMDIV 0x30
+# define BOSTON_PLAT_MMCMDIV_CLK0DIV (0xff << 0)
+# define BOSTON_PLAT_MMCMDIV_INPUT (0xff << 8)
+# define BOSTON_PLAT_MMCMDIV_MUL (0xff << 16)
+# define BOSTON_PLAT_MMCMDIV_CLK1DIV (0xff << 24)
+
+static uint32_t ext_field(uint32_t val, uint32_t mask)
+{
+ return (val & mask) >> (ffs(mask) - 1);
+}
+
+static ulong clk_boston_get_rate(struct clk *clk)
+{
+ struct clk_boston *state = dev_get_platdata(clk->dev);
+ uint32_t in_rate, mul, div;
+ uint mmcmdiv;
+ int err;
+
+ err = regmap_read(state->regmap, BOSTON_PLAT_MMCMDIV, &mmcmdiv);
+ if (err)
+ return 0;
+
+ in_rate = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_INPUT);
+ mul = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_MUL);
+
+ switch (clk->id) {
+ case BOSTON_CLK_SYS:
+ div = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_CLK0DIV);
+ break;
+ case BOSTON_CLK_CPU:
+ div = ext_field(mmcmdiv, BOSTON_PLAT_MMCMDIV_CLK1DIV);
+ break;
+ default:
+ return 0;
+ }
+
+ return (in_rate * mul * 1000000) / div;
+}
+
+const struct clk_ops clk_boston_ops = {
+ .get_rate = clk_boston_get_rate,
+};
+
+static int clk_boston_ofdata_to_platdata(struct udevice *dev)
+{
+ struct clk_boston *state = dev_get_platdata(dev);
+ struct udevice *syscon;
+ int err;
+
+ err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
+ "regmap", &syscon);
+ if (err) {
+ error("unable to find syscon device\n");
+ return err;
+ }
+
+ state->regmap = syscon_get_regmap(syscon);
+ if (!state->regmap) {
+ error("unable to find regmap\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static const struct udevice_id clk_boston_match[] = {
+ {
+ .compatible = "img,boston-clock",
+ },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(clk_boston) = {
+ .name = "boston_clock",
+ .id = UCLASS_CLK,
+ .of_match = clk_boston_match,
+ .ofdata_to_platdata = clk_boston_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct clk_boston),
+ .ops = &clk_boston_ops,
+};
diff --git a/drivers/clk/uniphier/clk-uniphier-core.c b/drivers/clk/uniphier/clk-uniphier-core.c
index a91924e8a4e..394832607ed 100644
--- a/drivers/clk/uniphier/clk-uniphier-core.c
+++ b/drivers/clk/uniphier/clk-uniphier-core.c
@@ -14,10 +14,39 @@
#include "clk-uniphier.h"
+/**
+ * struct uniphier_clk_priv - private data for UniPhier clock driver
+ *
+ * @base: base address of the clock provider
+ * @socdata: SoC specific data
+ */
+struct uniphier_clk_priv {
+ void __iomem *base;
+ const struct uniphier_clk_soc_data *socdata;
+};
+
+int uniphier_clk_probe(struct udevice *dev)
+{
+ struct uniphier_clk_priv *priv = dev_get_priv(dev);
+ fdt_addr_t addr;
+
+ addr = dev_get_addr(dev->parent);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ priv->base = devm_ioremap(dev, addr, SZ_4K);
+ if (!priv->base)
+ return -ENOMEM;
+
+ priv->socdata = (void *)dev_get_driver_data(dev);
+
+ return 0;
+}
+
static int uniphier_clk_enable(struct clk *clk)
{
struct uniphier_clk_priv *priv = dev_get_priv(clk->dev);
- struct uniphier_clk_gate_data *gate = priv->socdata->gate;
+ const struct uniphier_clk_gate_data *gate = priv->socdata->gate;
unsigned int nr_gate = priv->socdata->nr_gate;
void __iomem *reg;
u32 mask, data, tmp;
@@ -44,7 +73,7 @@ static int uniphier_clk_enable(struct clk *clk)
static ulong uniphier_clk_get_rate(struct clk *clk)
{
struct uniphier_clk_priv *priv = dev_get_priv(clk->dev);
- struct uniphier_clk_rate_data *rdata = priv->socdata->rate;
+ const struct uniphier_clk_rate_data *rdata = priv->socdata->rate;
unsigned int nr_rdata = priv->socdata->nr_rate;
void __iomem *reg;
u32 mask, data;
@@ -78,7 +107,7 @@ static ulong uniphier_clk_get_rate(struct clk *clk)
static ulong uniphier_clk_set_rate(struct clk *clk, ulong rate)
{
struct uniphier_clk_priv *priv = dev_get_priv(clk->dev);
- struct uniphier_clk_rate_data *rdata = priv->socdata->rate;
+ const struct uniphier_clk_rate_data *rdata = priv->socdata->rate;
unsigned int nr_rdata = priv->socdata->nr_rate;
void __iomem *reg;
u32 mask, data, tmp;
@@ -128,20 +157,47 @@ const struct clk_ops uniphier_clk_ops = {
.set_rate = uniphier_clk_set_rate,
};
-int uniphier_clk_probe(struct udevice *dev)
-{
- struct uniphier_clk_priv *priv = dev_get_priv(dev);
- fdt_addr_t addr;
-
- addr = dev_get_addr(dev);
- if (addr == FDT_ADDR_T_NONE)
- return -EINVAL;
-
- priv->base = devm_ioremap(dev, addr, SZ_4K);
- if (!priv->base)
- return -ENOMEM;
-
- priv->socdata = (void *)dev_get_driver_data(dev);
+static const struct udevice_id uniphier_clk_match[] = {
+ {
+ .compatible = "socionext,uniphier-sld3-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-ld4-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-pro4-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-sld8-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-pro5-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-pxs2-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-ld11-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ {
+ .compatible = "socionext,uniphier-ld20-mio-clock",
+ .data = (ulong)&uniphier_mio_clk_data,
+ },
+ { /* sentinel */ }
+};
- return 0;
-}
+U_BOOT_DRIVER(uniphier_clk) = {
+ .name = "uniphier-clk",
+ .id = UCLASS_CLK,
+ .of_match = uniphier_clk_match,
+ .probe = uniphier_clk_probe,
+ .priv_auto_alloc_size = sizeof(struct uniphier_clk_priv),
+ .ops = &uniphier_clk_ops,
+};
diff --git a/drivers/clk/uniphier/clk-uniphier-mio.c b/drivers/clk/uniphier/clk-uniphier-mio.c
index 2eea5ebc2ae..c1e7197c1a8 100644
--- a/drivers/clk/uniphier/clk-uniphier-mio.c
+++ b/drivers/clk/uniphier/clk-uniphier-mio.c
@@ -115,7 +115,7 @@
.data = 0x00020000, \
}
-static struct uniphier_clk_gate_data uniphier_mio_clk_gate[] = {
+static const 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 */
@@ -126,60 +126,15 @@ static struct uniphier_clk_gate_data uniphier_mio_clk_gate[] = {
UNIPHIER_MIO_CLK_GATE_USB(3, 7), /* for PH1-sLD3 only */
};
-static struct uniphier_clk_rate_data uniphier_mio_clk_rate[] = {
+static const 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 = {
+const 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,
- },
- {
- .compatible = "socionext,ph1-ld11-mioctrl",
- .data = (ulong)&uniphier_mio_clk_data,
- },
- {
- .compatible = "socionext,ph1-ld20-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,
- .priv_auto_alloc_size = sizeof(struct uniphier_clk_priv),
- .ops = &uniphier_clk_ops,
-};
diff --git a/drivers/clk/uniphier/clk-uniphier.h b/drivers/clk/uniphier/clk-uniphier.h
index 18aa88849b3..0b60337205e 100644
--- a/drivers/clk/uniphier/clk-uniphier.h
+++ b/drivers/clk/uniphier/clk-uniphier.h
@@ -27,9 +27,9 @@ struct uniphier_clk_rate_data {
};
struct uniphier_clk_soc_data {
- struct uniphier_clk_gate_data *gate;
+ const struct uniphier_clk_gate_data *gate;
unsigned int nr_gate;
- struct uniphier_clk_rate_data *rate;
+ const struct uniphier_clk_rate_data *rate;
unsigned int nr_rate;
};
@@ -40,18 +40,6 @@ struct uniphier_clk_soc_data {
.rate = f, \
}
-/**
- * struct uniphier_clk_priv - private data for UniPhier clock driver
- *
- * @base: base address of the clock provider
- * @socdata: SoC specific data
- */
-struct uniphier_clk_priv {
- void __iomem *base;
- struct uniphier_clk_soc_data *socdata;
-};
-
-extern const struct clk_ops uniphier_clk_ops;
-int uniphier_clk_probe(struct udevice *dev);
+extern const struct uniphier_clk_soc_data uniphier_mio_clk_data;
#endif /* __CLK_UNIPHIER_H__ */
generated by cgit v1.2.3 (git 2.0.4) at 2024-09-30 03:02:22 +0000