diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /drivers/clk/uniphier | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | drivers/clk/uniphier/Kconfig | 10 | ||||
-rw-r--r-- | drivers/clk/uniphier/Makefile | 12 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-core.c | 212 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-cpugear.c | 105 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-fixed-factor.c | 39 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-fixed-rate.c | 39 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-gate.c | 88 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-mio.c | 89 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-mux.c | 86 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-peri.c | 60 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier-sys.c | 302 | ||||
-rw-r--r-- | drivers/clk/uniphier/clk-uniphier.h | 154 |
12 files changed, 1196 insertions, 0 deletions
diff --git a/drivers/clk/uniphier/Kconfig b/drivers/clk/uniphier/Kconfig new file mode 100644 index 000000000..af37b2184 --- /dev/null +++ b/drivers/clk/uniphier/Kconfig @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only +config CLK_UNIPHIER + bool "Clock driver for UniPhier SoCs" + depends on ARCH_UNIPHIER || COMPILE_TEST + depends on OF && MFD_SYSCON + default ARCH_UNIPHIER + help + Support for clock controllers on UniPhier SoCs. + Say Y if you want to control clocks provided by System Control + block, Media I/O block, Peripheral Block. diff --git a/drivers/clk/uniphier/Makefile b/drivers/clk/uniphier/Makefile new file mode 100644 index 000000000..e5715abef --- /dev/null +++ b/drivers/clk/uniphier/Makefile @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y += clk-uniphier-core.o + +obj-y += clk-uniphier-cpugear.o +obj-y += clk-uniphier-fixed-factor.o +obj-y += clk-uniphier-fixed-rate.o +obj-y += clk-uniphier-gate.o +obj-y += clk-uniphier-mux.o + +obj-y += clk-uniphier-sys.o +obj-y += clk-uniphier-mio.o +obj-y += clk-uniphier-peri.o diff --git a/drivers/clk/uniphier/clk-uniphier-core.c b/drivers/clk/uniphier/clk-uniphier-core.c new file mode 100644 index 000000000..12380236d --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-core.c @@ -0,0 +1,212 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/clk-provider.h> +#include <linux/init.h> +#include <linux/mfd/syscon.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> + +#include "clk-uniphier.h" + +static struct clk_hw *uniphier_clk_register(struct device *dev, + struct regmap *regmap, + const struct uniphier_clk_data *data) +{ + switch (data->type) { + case UNIPHIER_CLK_TYPE_CPUGEAR: + return uniphier_clk_register_cpugear(dev, regmap, data->name, + &data->data.cpugear); + case UNIPHIER_CLK_TYPE_FIXED_FACTOR: + return uniphier_clk_register_fixed_factor(dev, data->name, + &data->data.factor); + case UNIPHIER_CLK_TYPE_FIXED_RATE: + return uniphier_clk_register_fixed_rate(dev, data->name, + &data->data.rate); + case UNIPHIER_CLK_TYPE_GATE: + return uniphier_clk_register_gate(dev, regmap, data->name, + &data->data.gate); + case UNIPHIER_CLK_TYPE_MUX: + return uniphier_clk_register_mux(dev, regmap, data->name, + &data->data.mux); + default: + dev_err(dev, "unsupported clock type\n"); + return ERR_PTR(-EINVAL); + } +} + +static int uniphier_clk_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct clk_hw_onecell_data *hw_data; + const struct uniphier_clk_data *p, *data; + struct regmap *regmap; + struct device_node *parent; + int clk_num = 0; + + data = of_device_get_match_data(dev); + if (WARN_ON(!data)) + return -EINVAL; + + parent = of_get_parent(dev->of_node); /* parent should be syscon node */ + regmap = syscon_node_to_regmap(parent); + of_node_put(parent); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to get regmap (error %ld)\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + for (p = data; p->name; p++) + clk_num = max(clk_num, p->idx + 1); + + hw_data = devm_kzalloc(dev, struct_size(hw_data, hws, clk_num), + GFP_KERNEL); + if (!hw_data) + return -ENOMEM; + + hw_data->num = clk_num; + + /* avoid returning NULL for unused idx */ + while (--clk_num >= 0) + hw_data->hws[clk_num] = ERR_PTR(-EINVAL); + + for (p = data; p->name; p++) { + struct clk_hw *hw; + + dev_dbg(dev, "register %s (index=%d)\n", p->name, p->idx); + hw = uniphier_clk_register(dev, regmap, p); + if (WARN(IS_ERR(hw), "failed to register %s", p->name)) + continue; + + if (p->idx >= 0) + hw_data->hws[p->idx] = hw; + } + + return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, + hw_data); +} + +static int uniphier_clk_remove(struct platform_device *pdev) +{ + of_clk_del_provider(pdev->dev.of_node); + + return 0; +} + +static const struct of_device_id uniphier_clk_match[] = { + /* System clock */ + { + .compatible = "socionext,uniphier-ld4-clock", + .data = uniphier_ld4_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-pro4-clock", + .data = uniphier_pro4_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-sld8-clock", + .data = uniphier_sld8_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-pro5-clock", + .data = uniphier_pro5_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-pxs2-clock", + .data = uniphier_pxs2_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-ld11-clock", + .data = uniphier_ld11_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-ld20-clock", + .data = uniphier_ld20_sys_clk_data, + }, + { + .compatible = "socionext,uniphier-pxs3-clock", + .data = uniphier_pxs3_sys_clk_data, + }, + /* Media I/O clock, SD clock */ + { + .compatible = "socionext,uniphier-ld4-mio-clock", + .data = uniphier_ld4_mio_clk_data, + }, + { + .compatible = "socionext,uniphier-pro4-mio-clock", + .data = uniphier_ld4_mio_clk_data, + }, + { + .compatible = "socionext,uniphier-sld8-mio-clock", + .data = uniphier_ld4_mio_clk_data, + }, + { + .compatible = "socionext,uniphier-pro5-sd-clock", + .data = uniphier_pro5_sd_clk_data, + }, + { + .compatible = "socionext,uniphier-pxs2-sd-clock", + .data = uniphier_pro5_sd_clk_data, + }, + { + .compatible = "socionext,uniphier-ld11-mio-clock", + .data = uniphier_ld4_mio_clk_data, + }, + { + .compatible = "socionext,uniphier-ld20-sd-clock", + .data = uniphier_pro5_sd_clk_data, + }, + { + .compatible = "socionext,uniphier-pxs3-sd-clock", + .data = uniphier_pro5_sd_clk_data, + }, + /* Peripheral clock */ + { + .compatible = "socionext,uniphier-ld4-peri-clock", + .data = uniphier_ld4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-pro4-peri-clock", + .data = uniphier_pro4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-sld8-peri-clock", + .data = uniphier_ld4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-pro5-peri-clock", + .data = uniphier_pro4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-pxs2-peri-clock", + .data = uniphier_pro4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-ld11-peri-clock", + .data = uniphier_pro4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-ld20-peri-clock", + .data = uniphier_pro4_peri_clk_data, + }, + { + .compatible = "socionext,uniphier-pxs3-peri-clock", + .data = uniphier_pro4_peri_clk_data, + }, + { /* sentinel */ } +}; + +static struct platform_driver uniphier_clk_driver = { + .probe = uniphier_clk_probe, + .remove = uniphier_clk_remove, + .driver = { + .name = "uniphier-clk", + .of_match_table = uniphier_clk_match, + }, +}; +builtin_platform_driver(uniphier_clk_driver); diff --git a/drivers/clk/uniphier/clk-uniphier-cpugear.c b/drivers/clk/uniphier/clk-uniphier-cpugear.c new file mode 100644 index 000000000..a2f01a4da --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-cpugear.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/regmap.h> + +#include "clk-uniphier.h" + +#define UNIPHIER_CLK_CPUGEAR_STAT 0 /* status */ +#define UNIPHIER_CLK_CPUGEAR_SET 4 /* set */ +#define UNIPHIER_CLK_CPUGEAR_UPD 8 /* update */ +#define UNIPHIER_CLK_CPUGEAR_UPD_BIT BIT(0) + +struct uniphier_clk_cpugear { + struct clk_hw hw; + struct regmap *regmap; + unsigned int regbase; + unsigned int mask; +}; + +#define to_uniphier_clk_cpugear(_hw) \ + container_of(_hw, struct uniphier_clk_cpugear, hw) + +static int uniphier_clk_cpugear_set_parent(struct clk_hw *hw, u8 index) +{ + struct uniphier_clk_cpugear *gear = to_uniphier_clk_cpugear(hw); + int ret; + unsigned int val; + + ret = regmap_write_bits(gear->regmap, + gear->regbase + UNIPHIER_CLK_CPUGEAR_SET, + gear->mask, index); + if (ret) + return ret; + + ret = regmap_write_bits(gear->regmap, + gear->regbase + UNIPHIER_CLK_CPUGEAR_UPD, + UNIPHIER_CLK_CPUGEAR_UPD_BIT, + UNIPHIER_CLK_CPUGEAR_UPD_BIT); + if (ret) + return ret; + + return regmap_read_poll_timeout(gear->regmap, + gear->regbase + UNIPHIER_CLK_CPUGEAR_UPD, + val, !(val & UNIPHIER_CLK_CPUGEAR_UPD_BIT), + 0, 1); +} + +static u8 uniphier_clk_cpugear_get_parent(struct clk_hw *hw) +{ + struct uniphier_clk_cpugear *gear = to_uniphier_clk_cpugear(hw); + int num_parents = clk_hw_get_num_parents(hw); + int ret; + unsigned int val; + + ret = regmap_read(gear->regmap, + gear->regbase + UNIPHIER_CLK_CPUGEAR_STAT, &val); + if (ret) + return ret; + + val &= gear->mask; + + return val < num_parents ? val : -EINVAL; +} + +static const struct clk_ops uniphier_clk_cpugear_ops = { + .determine_rate = __clk_mux_determine_rate, + .set_parent = uniphier_clk_cpugear_set_parent, + .get_parent = uniphier_clk_cpugear_get_parent, +}; + +struct clk_hw *uniphier_clk_register_cpugear(struct device *dev, + struct regmap *regmap, + const char *name, + const struct uniphier_clk_cpugear_data *data) +{ + struct uniphier_clk_cpugear *gear; + struct clk_init_data init; + int ret; + + gear = devm_kzalloc(dev, sizeof(*gear), GFP_KERNEL); + if (!gear) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &uniphier_clk_cpugear_ops; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = data->parent_names; + init.num_parents = data->num_parents; + + gear->regmap = regmap; + gear->regbase = data->regbase; + gear->mask = data->mask; + gear->hw.init = &init; + + ret = devm_clk_hw_register(dev, &gear->hw); + if (ret) + return ERR_PTR(ret); + + return &gear->hw; +} diff --git a/drivers/clk/uniphier/clk-uniphier-fixed-factor.c b/drivers/clk/uniphier/clk-uniphier-fixed-factor.c new file mode 100644 index 000000000..a6a37a6bc --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-fixed-factor.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> + +#include "clk-uniphier.h" + +struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev, + const char *name, + const struct uniphier_clk_fixed_factor_data *data) +{ + struct clk_fixed_factor *fix; + struct clk_init_data init; + int ret; + + fix = devm_kzalloc(dev, sizeof(*fix), GFP_KERNEL); + if (!fix) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &clk_fixed_factor_ops; + init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0; + init.parent_names = data->parent_name ? &data->parent_name : NULL; + init.num_parents = data->parent_name ? 1 : 0; + + fix->mult = data->mult; + fix->div = data->div; + fix->hw.init = &init; + + ret = devm_clk_hw_register(dev, &fix->hw); + if (ret) + return ERR_PTR(ret); + + return &fix->hw; +} diff --git a/drivers/clk/uniphier/clk-uniphier-fixed-rate.c b/drivers/clk/uniphier/clk-uniphier-fixed-rate.c new file mode 100644 index 000000000..3bc55ab75 --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-fixed-rate.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> + +#include "clk-uniphier.h" + +struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev, + const char *name, + const struct uniphier_clk_fixed_rate_data *data) +{ + struct clk_fixed_rate *fixed; + struct clk_init_data init; + int ret; + + /* allocate fixed-rate clock */ + fixed = devm_kzalloc(dev, sizeof(*fixed), GFP_KERNEL); + if (!fixed) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &clk_fixed_rate_ops; + init.flags = 0; + init.parent_names = NULL; + init.num_parents = 0; + + fixed->fixed_rate = data->fixed_rate; + fixed->hw.init = &init; + + ret = devm_clk_hw_register(dev, &fixed->hw); + if (ret) + return ERR_PTR(ret); + + return &fixed->hw; +} diff --git a/drivers/clk/uniphier/clk-uniphier-gate.c b/drivers/clk/uniphier/clk-uniphier-gate.c new file mode 100644 index 000000000..e58093e79 --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-gate.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/regmap.h> + +#include "clk-uniphier.h" + +struct uniphier_clk_gate { + struct clk_hw hw; + struct regmap *regmap; + unsigned int reg; + unsigned int bit; +}; + +#define to_uniphier_clk_gate(_hw) \ + container_of(_hw, struct uniphier_clk_gate, hw) + +static int uniphier_clk_gate_endisable(struct clk_hw *hw, int enable) +{ + struct uniphier_clk_gate *gate = to_uniphier_clk_gate(hw); + + return regmap_write_bits(gate->regmap, gate->reg, BIT(gate->bit), + enable ? BIT(gate->bit) : 0); +} + +static int uniphier_clk_gate_enable(struct clk_hw *hw) +{ + return uniphier_clk_gate_endisable(hw, 1); +} + +static void uniphier_clk_gate_disable(struct clk_hw *hw) +{ + if (uniphier_clk_gate_endisable(hw, 0) < 0) + pr_warn("failed to disable clk\n"); +} + +static int uniphier_clk_gate_is_enabled(struct clk_hw *hw) +{ + struct uniphier_clk_gate *gate = to_uniphier_clk_gate(hw); + unsigned int val; + + if (regmap_read(gate->regmap, gate->reg, &val) < 0) + pr_warn("is_enabled() may return wrong result\n"); + + return !!(val & BIT(gate->bit)); +} + +static const struct clk_ops uniphier_clk_gate_ops = { + .enable = uniphier_clk_gate_enable, + .disable = uniphier_clk_gate_disable, + .is_enabled = uniphier_clk_gate_is_enabled, +}; + +struct clk_hw *uniphier_clk_register_gate(struct device *dev, + struct regmap *regmap, + const char *name, + const struct uniphier_clk_gate_data *data) +{ + struct uniphier_clk_gate *gate; + struct clk_init_data init; + int ret; + + gate = devm_kzalloc(dev, sizeof(*gate), GFP_KERNEL); + if (!gate) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &uniphier_clk_gate_ops; + init.flags = data->parent_name ? CLK_SET_RATE_PARENT : 0; + init.parent_names = data->parent_name ? &data->parent_name : NULL; + init.num_parents = data->parent_name ? 1 : 0; + + gate->regmap = regmap; + gate->reg = data->reg; + gate->bit = data->bit; + gate->hw.init = &init; + + ret = devm_clk_hw_register(dev, &gate->hw); + if (ret) + return ERR_PTR(ret); + + return &gate->hw; +} diff --git a/drivers/clk/uniphier/clk-uniphier-mio.c b/drivers/clk/uniphier/clk-uniphier-mio.c new file mode 100644 index 000000000..2cbbf67c9 --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-mio.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/stddef.h> + +#include "clk-uniphier.h" + +#define UNIPHIER_MIO_CLK_SD_FIXED \ + UNIPHIER_CLK_FACTOR("sd-44m", -1, "sd-133m", 1, 3), \ + UNIPHIER_CLK_FACTOR("sd-33m", -1, "sd-200m", 1, 6), \ + UNIPHIER_CLK_FACTOR("sd-50m", -1, "sd-200m", 1, 4), \ + UNIPHIER_CLK_FACTOR("sd-67m", -1, "sd-200m", 1, 3), \ + UNIPHIER_CLK_FACTOR("sd-100m", -1, "sd-200m", 1, 2), \ + UNIPHIER_CLK_FACTOR("sd-40m", -1, "sd-200m", 1, 5), \ + UNIPHIER_CLK_FACTOR("sd-25m", -1, "sd-200m", 1, 8), \ + UNIPHIER_CLK_FACTOR("sd-22m", -1, "sd-133m", 1, 6) + +#define UNIPHIER_MIO_CLK_SD(_idx, ch) \ + { \ + .name = "sd" #ch "-sel", \ + .type = UNIPHIER_CLK_TYPE_MUX, \ + .idx = -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, \ + }, \ + }, \ + }, \ + UNIPHIER_CLK_GATE("sd" #ch, (_idx), "sd" #ch "-sel", 0x20 + 0x200 * (ch), 8) + +#define UNIPHIER_MIO_CLK_USB2(idx, ch) \ + UNIPHIER_CLK_GATE("usb2" #ch, (idx), "usb2", 0x20 + 0x200 * (ch), 28) + +#define UNIPHIER_MIO_CLK_USB2_PHY(idx, ch) \ + UNIPHIER_CLK_GATE("usb2" #ch "-phy", (idx), "usb2", 0x20 + 0x200 * (ch), 29) + +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), + UNIPHIER_CLK_GATE("miodmac", 7, NULL, 0x20, 25), + UNIPHIER_MIO_CLK_USB2(8, 0), + UNIPHIER_MIO_CLK_USB2(9, 1), + UNIPHIER_MIO_CLK_USB2(10, 2), + UNIPHIER_MIO_CLK_USB2_PHY(12, 0), + UNIPHIER_MIO_CLK_USB2_PHY(13, 1), + UNIPHIER_MIO_CLK_USB2_PHY(14, 2), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_pro5_sd_clk_data[] = { + UNIPHIER_MIO_CLK_SD_FIXED, + UNIPHIER_MIO_CLK_SD(0, 0), + UNIPHIER_MIO_CLK_SD(1, 1), + { /* sentinel */ } +}; diff --git a/drivers/clk/uniphier/clk-uniphier-mux.c b/drivers/clk/uniphier/clk-uniphier-mux.c new file mode 100644 index 000000000..1998e9d4c --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-mux.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/clk-provider.h> +#include <linux/device.h> +#include <linux/regmap.h> + +#include "clk-uniphier.h" + +struct uniphier_clk_mux { + struct clk_hw hw; + struct regmap *regmap; + unsigned int reg; + const unsigned int *masks; + const unsigned int *vals; +}; + +#define to_uniphier_clk_mux(_hw) container_of(_hw, struct uniphier_clk_mux, hw) + +static int uniphier_clk_mux_set_parent(struct clk_hw *hw, u8 index) +{ + struct uniphier_clk_mux *mux = to_uniphier_clk_mux(hw); + + return regmap_write_bits(mux->regmap, mux->reg, mux->masks[index], + mux->vals[index]); +} + +static u8 uniphier_clk_mux_get_parent(struct clk_hw *hw) +{ + struct uniphier_clk_mux *mux = to_uniphier_clk_mux(hw); + unsigned int num_parents = clk_hw_get_num_parents(hw); + int ret; + unsigned int val; + unsigned int i; + + ret = regmap_read(mux->regmap, mux->reg, &val); + if (ret) + return ret; + + for (i = 0; i < num_parents; i++) + if ((mux->masks[i] & val) == mux->vals[i]) + return i; + + return -EINVAL; +} + +static const struct clk_ops uniphier_clk_mux_ops = { + .determine_rate = __clk_mux_determine_rate, + .set_parent = uniphier_clk_mux_set_parent, + .get_parent = uniphier_clk_mux_get_parent, +}; + +struct clk_hw *uniphier_clk_register_mux(struct device *dev, + struct regmap *regmap, + const char *name, + const struct uniphier_clk_mux_data *data) +{ + struct uniphier_clk_mux *mux; + struct clk_init_data init; + int ret; + + mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL); + if (!mux) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &uniphier_clk_mux_ops; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = data->parent_names; + init.num_parents = data->num_parents; + + mux->regmap = regmap; + mux->reg = data->reg; + mux->masks = data->masks; + mux->vals = data->vals; + mux->hw.init = &init; + + ret = devm_clk_hw_register(dev, &mux->hw); + if (ret) + return ERR_PTR(ret); + + return &mux->hw; +} diff --git a/drivers/clk/uniphier/clk-uniphier-peri.c b/drivers/clk/uniphier/clk-uniphier-peri.c new file mode 100644 index 000000000..3e32db9da --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-peri.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include "clk-uniphier.h" + +#define UNIPHIER_PERI_CLK_UART(idx, ch) \ + UNIPHIER_CLK_GATE("uart" #ch, (idx), "uart", 0x24, 19 + (ch)) + +#define UNIPHIER_PERI_CLK_I2C_COMMON \ + UNIPHIER_CLK_GATE("i2c-common", -1, "i2c", 0x20, 1) + +#define UNIPHIER_PERI_CLK_I2C(idx, ch) \ + UNIPHIER_CLK_GATE("i2c" #ch, (idx), "i2c-common", 0x24, 5 + (ch)) + +#define UNIPHIER_PERI_CLK_FI2C(idx, ch) \ + UNIPHIER_CLK_GATE("i2c" #ch, (idx), "i2c", 0x24, 24 + (ch)) + +#define UNIPHIER_PERI_CLK_SCSSI(idx, ch) \ + UNIPHIER_CLK_GATE("scssi" #ch, (idx), "spi", 0x20, 17 + (ch)) + +#define UNIPHIER_PERI_CLK_MCSSI(idx) \ + UNIPHIER_CLK_GATE("mcssi", (idx), "spi", 0x24, 14) + +const struct uniphier_clk_data uniphier_ld4_peri_clk_data[] = { + UNIPHIER_PERI_CLK_UART(0, 0), + UNIPHIER_PERI_CLK_UART(1, 1), + UNIPHIER_PERI_CLK_UART(2, 2), + UNIPHIER_PERI_CLK_UART(3, 3), + UNIPHIER_PERI_CLK_I2C_COMMON, + UNIPHIER_PERI_CLK_I2C(4, 0), + UNIPHIER_PERI_CLK_I2C(5, 1), + UNIPHIER_PERI_CLK_I2C(6, 2), + UNIPHIER_PERI_CLK_I2C(7, 3), + UNIPHIER_PERI_CLK_I2C(8, 4), + UNIPHIER_PERI_CLK_SCSSI(11, 0), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_pro4_peri_clk_data[] = { + UNIPHIER_PERI_CLK_UART(0, 0), + UNIPHIER_PERI_CLK_UART(1, 1), + UNIPHIER_PERI_CLK_UART(2, 2), + UNIPHIER_PERI_CLK_UART(3, 3), + UNIPHIER_PERI_CLK_FI2C(4, 0), + UNIPHIER_PERI_CLK_FI2C(5, 1), + UNIPHIER_PERI_CLK_FI2C(6, 2), + UNIPHIER_PERI_CLK_FI2C(7, 3), + UNIPHIER_PERI_CLK_FI2C(8, 4), + UNIPHIER_PERI_CLK_FI2C(9, 5), + UNIPHIER_PERI_CLK_FI2C(10, 6), + UNIPHIER_PERI_CLK_SCSSI(11, 0), + UNIPHIER_PERI_CLK_SCSSI(12, 1), + UNIPHIER_PERI_CLK_SCSSI(13, 2), + UNIPHIER_PERI_CLK_SCSSI(14, 3), + UNIPHIER_PERI_CLK_MCSSI(15), + { /* sentinel */ } +}; diff --git a/drivers/clk/uniphier/clk-uniphier-sys.c b/drivers/clk/uniphier/clk-uniphier-sys.c new file mode 100644 index 000000000..32b301724 --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier-sys.c @@ -0,0 +1,302 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#include <linux/stddef.h> + +#include "clk-uniphier.h" + +#define UNIPHIER_LD4_SYS_CLK_SD \ + UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 8), \ + UNIPHIER_CLK_FACTOR("sd-133m", -1, "vpll27a", 1, 2) + +#define UNIPHIER_PRO5_SYS_CLK_SD \ + UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 12), \ + UNIPHIER_CLK_FACTOR("sd-133m", -1, "spll", 1, 18) + +#define UNIPHIER_LD20_SYS_CLK_SD \ + UNIPHIER_CLK_FACTOR("sd-200m", -1, "spll", 1, 10), \ + UNIPHIER_CLK_FACTOR("sd-133m", -1, "spll", 1, 15) + +#define UNIPHIER_LD4_SYS_CLK_NAND(idx) \ + UNIPHIER_CLK_FACTOR("nand-50m", -1, "spll", 1, 32), \ + UNIPHIER_CLK_GATE("nand", (idx), "nand-50m", 0x2104, 2) + +#define UNIPHIER_PRO5_SYS_CLK_NAND(idx) \ + UNIPHIER_CLK_FACTOR("nand-50m", -1, "spll", 1, 48), \ + UNIPHIER_CLK_GATE("nand", (idx), "nand-50m", 0x2104, 2) + +#define UNIPHIER_LD11_SYS_CLK_NAND(idx) \ + UNIPHIER_CLK_FACTOR("nand-50m", -1, "spll", 1, 40), \ + UNIPHIER_CLK_GATE("nand", (idx), "nand-50m", 0x210c, 0) + +#define UNIPHIER_SYS_CLK_NAND_4X(idx) \ + UNIPHIER_CLK_FACTOR("nand-4x", (idx), "nand", 4, 1) + +#define UNIPHIER_LD11_SYS_CLK_EMMC(idx) \ + UNIPHIER_CLK_GATE("emmc", (idx), NULL, 0x210c, 2) + +#define UNIPHIER_LD4_SYS_CLK_STDMAC(idx) \ + UNIPHIER_CLK_GATE("stdmac", (idx), NULL, 0x2104, 10) + +#define UNIPHIER_LD11_SYS_CLK_STDMAC(idx) \ + UNIPHIER_CLK_GATE("stdmac", (idx), NULL, 0x210c, 8) + +#define UNIPHIER_LD11_SYS_CLK_HSC(idx) \ + UNIPHIER_CLK_GATE("hsc", (idx), NULL, 0x210c, 9) + +#define UNIPHIER_PRO4_SYS_CLK_GIO(idx) \ + UNIPHIER_CLK_GATE("gio", (idx), NULL, 0x2104, 6) + +#define UNIPHIER_PRO4_SYS_CLK_USB3(idx, ch) \ + UNIPHIER_CLK_GATE("usb3" #ch, (idx), NULL, 0x2104, 16 + (ch)) + +#define UNIPHIER_PRO4_SYS_CLK_AIO(idx) \ + UNIPHIER_CLK_FACTOR("aio-io200m", -1, "spll", 1, 8), \ + UNIPHIER_CLK_GATE("aio", (idx), "aio-io200m", 0x2104, 13) + +#define UNIPHIER_PRO5_SYS_CLK_AIO(idx) \ + UNIPHIER_CLK_FACTOR("aio-io200m", -1, "spll", 1, 12), \ + UNIPHIER_CLK_GATE("aio", (idx), "aio-io200m", 0x2104, 13) + +#define UNIPHIER_LD11_SYS_CLK_AIO(idx) \ + UNIPHIER_CLK_FACTOR("aio-io200m", -1, "spll", 1, 10), \ + UNIPHIER_CLK_GATE("aio", (idx), "aio-io200m", 0x2108, 0) + +#define UNIPHIER_LD11_SYS_CLK_EVEA(idx) \ + UNIPHIER_CLK_FACTOR("evea-io100m", -1, "spll", 1, 20), \ + UNIPHIER_CLK_GATE("evea", (idx), "evea-io100m", 0x2108, 1) + +#define UNIPHIER_LD11_SYS_CLK_EXIV(idx) \ + UNIPHIER_CLK_FACTOR("exiv-io200m", -1, "spll", 1, 10), \ + UNIPHIER_CLK_GATE("exiv", (idx), "exiv-io200m", 0x2110, 2) + +#define UNIPHIER_PRO4_SYS_CLK_ETHER(idx) \ + UNIPHIER_CLK_GATE("ether", (idx), NULL, 0x2104, 12) + +#define UNIPHIER_LD11_SYS_CLK_ETHER(idx) \ + UNIPHIER_CLK_GATE("ether", (idx), NULL, 0x210c, 6) + +const struct uniphier_clk_data uniphier_ld4_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 65, 1), /* 1597.44 MHz */ + UNIPHIER_CLK_FACTOR("upll", -1, "ref", 6000, 512), /* 288 MHz */ + UNIPHIER_CLK_FACTOR("a2pll", -1, "ref", 24, 1), /* 589.824 MHz */ + UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 5625, 512), /* 270 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "a2pll", 1, 16), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 16), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 32), + UNIPHIER_LD4_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_LD4_SYS_CLK_SD, + UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12), + UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* Ether, HSC, MIO */ + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_pro4_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 64, 1), /* 1600 MHz */ + UNIPHIER_CLK_FACTOR("upll", -1, "ref", 288, 25), /* 288 MHz */ + UNIPHIER_CLK_FACTOR("a2pll", -1, "upll", 256, 125), /* 589.824 MHz */ + UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 270, 25), /* 270 MHz */ + UNIPHIER_CLK_FACTOR("gpll", -1, "ref", 10, 1), /* 250 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "a2pll", 1, 8), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 32), + UNIPHIER_CLK_FACTOR("spi", 1, "spll", 1, 32), + UNIPHIER_LD4_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_LD4_SYS_CLK_SD, + UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12), + UNIPHIER_PRO4_SYS_CLK_ETHER(6), + UNIPHIER_CLK_GATE("ether-gb", 7, "gpll", 0x2104, 5), + UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* HSC, MIO, RLE */ + UNIPHIER_CLK_GATE("ether-phy", 10, "ref", 0x2260, 0), + UNIPHIER_PRO4_SYS_CLK_GIO(12), /* Ether, SATA, USB3 */ + UNIPHIER_PRO4_SYS_CLK_USB3(14, 0), + UNIPHIER_PRO4_SYS_CLK_USB3(15, 1), + UNIPHIER_CLK_FACTOR("usb30-hsphy0", 16, "upll", 1, 12), + UNIPHIER_CLK_FACTOR("usb30-ssphy0", 17, "ref", 1, 1), + UNIPHIER_CLK_FACTOR("usb31-ssphy0", 20, "ref", 1, 1), + UNIPHIER_CLK_GATE("sata0", 28, NULL, 0x2104, 18), + UNIPHIER_CLK_GATE("sata1", 29, NULL, 0x2104, 19), + UNIPHIER_PRO4_SYS_CLK_AIO(40), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_sld8_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 64, 1), /* 1600 MHz */ + UNIPHIER_CLK_FACTOR("upll", -1, "ref", 288, 25), /* 288 MHz */ + UNIPHIER_CLK_FACTOR("vpll27a", -1, "ref", 270, 25), /* 270 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 20), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 16), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 32), + UNIPHIER_LD4_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_LD4_SYS_CLK_SD, + UNIPHIER_CLK_FACTOR("usb2", -1, "upll", 1, 12), + UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* Ether, HSC, MIO */ + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_pro5_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 120, 1), /* 2400 MHz */ + UNIPHIER_CLK_FACTOR("dapll1", -1, "ref", 128, 1), /* 2560 MHz */ + UNIPHIER_CLK_FACTOR("dapll2", -1, "dapll1", 144, 125), /* 2949.12 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "dapll2", 1, 40), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 48), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 48), + UNIPHIER_PRO5_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_PRO5_SYS_CLK_SD, + UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* HSC */ + UNIPHIER_PRO4_SYS_CLK_GIO(12), /* PCIe, USB3 */ + UNIPHIER_PRO4_SYS_CLK_USB3(14, 0), + UNIPHIER_PRO4_SYS_CLK_USB3(15, 1), + UNIPHIER_CLK_GATE("pcie", 24, NULL, 0x2108, 2), + UNIPHIER_PRO5_SYS_CLK_AIO(40), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 96, 1), /* 2400 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 27), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 48), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 48), + UNIPHIER_PRO5_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_PRO5_SYS_CLK_SD, + UNIPHIER_PRO4_SYS_CLK_ETHER(6), + UNIPHIER_LD4_SYS_CLK_STDMAC(8), /* HSC, RLE */ + /* GIO is always clock-enabled: no function for 0x2104 bit6 */ + UNIPHIER_PRO4_SYS_CLK_USB3(14, 0), + UNIPHIER_PRO4_SYS_CLK_USB3(15, 1), + /* The document mentions 0x2104 bit 18, but not functional */ + UNIPHIER_CLK_GATE("usb30-hsphy0", 16, NULL, 0x2104, 19), + UNIPHIER_CLK_FACTOR("usb30-ssphy0", 17, "ref", 1, 1), + UNIPHIER_CLK_FACTOR("usb30-ssphy1", 18, "ref", 1, 1), + UNIPHIER_CLK_GATE("usb31-hsphy0", 20, NULL, 0x2104, 20), + UNIPHIER_CLK_FACTOR("usb31-ssphy0", 21, "ref", 1, 1), + UNIPHIER_CLK_GATE("sata0", 28, NULL, 0x2104, 22), + UNIPHIER_PRO5_SYS_CLK_AIO(40), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_ld11_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 392, 5), /* 1960 MHz */ + UNIPHIER_CLK_FACTOR("mpll", -1, "ref", 64, 1), /* 1600 MHz */ + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1), /* 2000 MHz */ + UNIPHIER_CLK_FACTOR("vspll", -1, "ref", 80, 1), /* 2000 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 40), + UNIPHIER_LD11_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_LD11_SYS_CLK_EMMC(4), + /* Index 5 reserved for eMMC PHY */ + UNIPHIER_LD11_SYS_CLK_ETHER(6), + UNIPHIER_LD11_SYS_CLK_STDMAC(8), /* HSC, MIO */ + UNIPHIER_LD11_SYS_CLK_HSC(9), + UNIPHIER_CLK_FACTOR("usb2", -1, "ref", 24, 25), + UNIPHIER_LD11_SYS_CLK_AIO(40), + UNIPHIER_LD11_SYS_CLK_EVEA(41), + UNIPHIER_LD11_SYS_CLK_EXIV(42), + /* CPU gears */ + UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8), + UNIPHIER_CLK_DIV4("mpll", 2, 3, 4, 8), + UNIPHIER_CLK_DIV3("spll", 3, 4, 8), + /* Note: both gear1 and gear4 are spll/4. This is not a bug. */ + UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8, + "cpll/2", "spll/4", "cpll/3", "spll/3", + "spll/4", "spll/8", "cpll/4", "cpll/8"), + UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8, + "mpll/2", "spll/4", "mpll/3", "spll/3", + "spll/4", "spll/8", "mpll/4", "mpll/8"), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_ld20_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 88, 1), /* ARM: 2200 MHz */ + UNIPHIER_CLK_FACTOR("gppll", -1, "ref", 52, 1), /* Mali: 1300 MHz */ + UNIPHIER_CLK_FACTOR("mpll", -1, "ref", 64, 1), /* Codec: 1600 MHz */ + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1), /* 2000 MHz */ + UNIPHIER_CLK_FACTOR("s2pll", -1, "ref", 88, 1), /* IPP: 2200 MHz */ + UNIPHIER_CLK_FACTOR("vppll", -1, "ref", 504, 5), /* 2520 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 40), + UNIPHIER_LD11_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_LD11_SYS_CLK_EMMC(4), + /* Index 5 reserved for eMMC PHY */ + UNIPHIER_LD20_SYS_CLK_SD, + UNIPHIER_LD11_SYS_CLK_ETHER(6), + UNIPHIER_LD11_SYS_CLK_STDMAC(8), /* HSC */ + UNIPHIER_LD11_SYS_CLK_HSC(9), + /* GIO is always clock-enabled: no function for 0x210c bit5 */ + /* + * clock for USB Link is enabled by the logic "OR" of bit 14 and bit 15. + * We do not use bit 15 here. + */ + UNIPHIER_CLK_GATE("usb30", 14, NULL, 0x210c, 14), + UNIPHIER_CLK_GATE("usb30-hsphy0", 16, NULL, 0x210c, 12), + UNIPHIER_CLK_GATE("usb30-hsphy1", 17, NULL, 0x210c, 13), + UNIPHIER_CLK_FACTOR("usb30-ssphy0", 18, "ref", 1, 1), + UNIPHIER_CLK_FACTOR("usb30-ssphy1", 19, "ref", 1, 1), + UNIPHIER_CLK_GATE("pcie", 24, NULL, 0x210c, 4), + UNIPHIER_LD11_SYS_CLK_AIO(40), + UNIPHIER_LD11_SYS_CLK_EVEA(41), + UNIPHIER_LD11_SYS_CLK_EXIV(42), + /* CPU gears */ + UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8), + UNIPHIER_CLK_DIV4("spll", 2, 3, 4, 8), + UNIPHIER_CLK_DIV4("s2pll", 2, 3, 4, 8), + UNIPHIER_CLK_CPUGEAR("cpu-ca72", 32, 0x8000, 0xf, 8, + "cpll/2", "spll/2", "cpll/3", "spll/3", + "spll/4", "spll/8", "cpll/4", "cpll/8"), + UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8, + "cpll/2", "spll/2", "cpll/3", "spll/3", + "spll/4", "spll/8", "cpll/4", "cpll/8"), + UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8, + "s2pll/2", "spll/2", "s2pll/3", "spll/3", + "spll/4", "spll/8", "s2pll/4", "s2pll/8"), + { /* sentinel */ } +}; + +const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[] = { + UNIPHIER_CLK_FACTOR("cpll", -1, "ref", 104, 1), /* ARM: 2600 MHz */ + UNIPHIER_CLK_FACTOR("spll", -1, "ref", 80, 1), /* 2000 MHz */ + UNIPHIER_CLK_FACTOR("s2pll", -1, "ref", 88, 1), /* IPP: 2400 MHz */ + UNIPHIER_CLK_FACTOR("uart", 0, "spll", 1, 34), + UNIPHIER_CLK_FACTOR("i2c", 1, "spll", 1, 40), + UNIPHIER_CLK_FACTOR("spi", -1, "spll", 1, 40), + UNIPHIER_LD20_SYS_CLK_SD, + UNIPHIER_LD11_SYS_CLK_NAND(2), + UNIPHIER_SYS_CLK_NAND_4X(3), + UNIPHIER_LD11_SYS_CLK_EMMC(4), + UNIPHIER_CLK_GATE("ether0", 6, NULL, 0x210c, 9), + UNIPHIER_CLK_GATE("ether1", 7, NULL, 0x210c, 10), + UNIPHIER_CLK_GATE("usb30", 12, NULL, 0x210c, 4), /* =GIO0 */ + UNIPHIER_CLK_GATE("usb31-0", 13, NULL, 0x210c, 5), /* =GIO1 */ + UNIPHIER_CLK_GATE("usb31-1", 14, NULL, 0x210c, 6), /* =GIO1-1 */ + UNIPHIER_CLK_GATE("usb30-hsphy0", 16, NULL, 0x210c, 16), + UNIPHIER_CLK_GATE("usb30-ssphy0", 17, NULL, 0x210c, 18), + UNIPHIER_CLK_GATE("usb30-ssphy1", 18, NULL, 0x210c, 20), + UNIPHIER_CLK_GATE("usb31-hsphy0", 20, NULL, 0x210c, 17), + UNIPHIER_CLK_GATE("usb31-ssphy0", 21, NULL, 0x210c, 19), + UNIPHIER_CLK_GATE("pcie", 24, NULL, 0x210c, 3), + UNIPHIER_CLK_GATE("sata0", 28, NULL, 0x210c, 7), + UNIPHIER_CLK_GATE("sata1", 29, NULL, 0x210c, 8), + UNIPHIER_CLK_GATE("sata-phy", 30, NULL, 0x210c, 21), + /* CPU gears */ + UNIPHIER_CLK_DIV4("cpll", 2, 3, 4, 8), + UNIPHIER_CLK_DIV4("spll", 2, 3, 4, 8), + UNIPHIER_CLK_DIV4("s2pll", 2, 3, 4, 8), + UNIPHIER_CLK_CPUGEAR("cpu-ca53", 33, 0x8080, 0xf, 8, + "cpll/2", "spll/2", "cpll/3", "spll/3", + "spll/4", "spll/8", "cpll/4", "cpll/8"), + UNIPHIER_CLK_CPUGEAR("cpu-ipp", 34, 0x8100, 0xf, 8, + "s2pll/2", "spll/2", "s2pll/3", "spll/3", + "spll/4", "spll/8", "s2pll/4", "s2pll/8"), + { /* sentinel */ } +}; diff --git a/drivers/clk/uniphier/clk-uniphier.h b/drivers/clk/uniphier/clk-uniphier.h new file mode 100644 index 000000000..9e30362e5 --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier.h @@ -0,0 +1,154 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2016 Socionext Inc. + * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + */ + +#ifndef __CLK_UNIPHIER_H__ +#define __CLK_UNIPHIER_H__ + +struct clk_hw; +struct device; +struct regmap; + +#define UNIPHIER_CLK_CPUGEAR_MAX_PARENTS 16 +#define UNIPHIER_CLK_MUX_MAX_PARENTS 8 + +enum uniphier_clk_type { + UNIPHIER_CLK_TYPE_CPUGEAR, + UNIPHIER_CLK_TYPE_FIXED_FACTOR, + UNIPHIER_CLK_TYPE_FIXED_RATE, + UNIPHIER_CLK_TYPE_GATE, + UNIPHIER_CLK_TYPE_MUX, +}; + +struct uniphier_clk_cpugear_data { + const char *parent_names[UNIPHIER_CLK_CPUGEAR_MAX_PARENTS]; + unsigned int num_parents; + unsigned int regbase; + unsigned int mask; +}; + +struct uniphier_clk_fixed_factor_data { + const char *parent_name; + unsigned int mult; + unsigned int div; +}; + +struct uniphier_clk_fixed_rate_data { + unsigned long fixed_rate; +}; + +struct uniphier_clk_gate_data { + const char *parent_name; + unsigned int reg; + unsigned int bit; +}; + +struct uniphier_clk_mux_data { + const char *parent_names[UNIPHIER_CLK_MUX_MAX_PARENTS]; + unsigned int num_parents; + unsigned int reg; + unsigned int masks[UNIPHIER_CLK_MUX_MAX_PARENTS]; + unsigned int vals[UNIPHIER_CLK_MUX_MAX_PARENTS]; +}; + +struct uniphier_clk_data { + const char *name; + enum uniphier_clk_type type; + int idx; + union { + struct uniphier_clk_cpugear_data cpugear; + struct uniphier_clk_fixed_factor_data factor; + struct uniphier_clk_fixed_rate_data rate; + struct uniphier_clk_gate_data gate; + struct uniphier_clk_mux_data mux; + } data; +}; + +#define UNIPHIER_CLK_CPUGEAR(_name, _idx, _regbase, _mask, \ + _num_parents, ...) \ + { \ + .name = (_name), \ + .type = UNIPHIER_CLK_TYPE_CPUGEAR, \ + .idx = (_idx), \ + .data.cpugear = { \ + .parent_names = { __VA_ARGS__ }, \ + .num_parents = (_num_parents), \ + .regbase = (_regbase), \ + .mask = (_mask) \ + }, \ + } + +#define UNIPHIER_CLK_FACTOR(_name, _idx, _parent, _mult, _div) \ + { \ + .name = (_name), \ + .type = UNIPHIER_CLK_TYPE_FIXED_FACTOR, \ + .idx = (_idx), \ + .data.factor = { \ + .parent_name = (_parent), \ + .mult = (_mult), \ + .div = (_div), \ + }, \ + } + +#define UNIPHIER_CLK_GATE(_name, _idx, _parent, _reg, _bit) \ + { \ + .name = (_name), \ + .type = UNIPHIER_CLK_TYPE_GATE, \ + .idx = (_idx), \ + .data.gate = { \ + .parent_name = (_parent), \ + .reg = (_reg), \ + .bit = (_bit), \ + }, \ + } + +#define UNIPHIER_CLK_DIV(parent, div) \ + UNIPHIER_CLK_FACTOR(parent "/" #div, -1, parent, 1, div) + +#define UNIPHIER_CLK_DIV2(parent, div0, div1) \ + UNIPHIER_CLK_DIV(parent, div0), \ + UNIPHIER_CLK_DIV(parent, div1) + +#define UNIPHIER_CLK_DIV3(parent, div0, div1, div2) \ + UNIPHIER_CLK_DIV2(parent, div0, div1), \ + UNIPHIER_CLK_DIV(parent, div2) + +#define UNIPHIER_CLK_DIV4(parent, div0, div1, div2, div3) \ + UNIPHIER_CLK_DIV2(parent, div0, div1), \ + UNIPHIER_CLK_DIV2(parent, div2, div3) + +struct clk_hw *uniphier_clk_register_cpugear(struct device *dev, + struct regmap *regmap, + const char *name, + const struct uniphier_clk_cpugear_data *data); +struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev, + const char *name, + const struct uniphier_clk_fixed_factor_data *data); +struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev, + const char *name, + const struct uniphier_clk_fixed_rate_data *data); +struct clk_hw *uniphier_clk_register_gate(struct device *dev, + struct regmap *regmap, + const char *name, + const struct uniphier_clk_gate_data *data); +struct clk_hw *uniphier_clk_register_mux(struct device *dev, + struct regmap *regmap, + const char *name, + const struct uniphier_clk_mux_data *data); + +extern const struct uniphier_clk_data uniphier_ld4_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_pro4_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_sld8_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_pro5_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_ld11_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_ld20_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[]; +extern const struct uniphier_clk_data uniphier_ld4_mio_clk_data[]; +extern const struct uniphier_clk_data uniphier_pro5_sd_clk_data[]; +extern const struct uniphier_clk_data uniphier_ld4_peri_clk_data[]; +extern const struct uniphier_clk_data uniphier_pro4_peri_clk_data[]; + +#endif /* __CLK_UNIPHIER_H__ */ |