summaryrefslogtreecommitdiffstats
path: root/drivers/clk/hisilicon
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/clk/hisilicon')
-rw-r--r--drivers/clk/hisilicon/Makefile2
-rw-r--r--drivers/clk/hisilicon/clk-hisi-phase.c121
-rw-r--r--drivers/clk/hisilicon/clk.c26
-rw-r--r--drivers/clk/hisilicon/clk.h19
-rw-r--r--drivers/clk/hisilicon/crg-hi3516cv300.c2
-rw-r--r--drivers/clk/hisilicon/crg-hi3798cv200.c100
6 files changed, 232 insertions, 38 deletions
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index 4806fc2cb4ac..2a714c0f9657 100644
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -3,7 +3,7 @@
# Hisilicon Clock specific Makefile
#
-obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o
+obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o clk-hisi-phase.o
obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o
obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o
diff --git a/drivers/clk/hisilicon/clk-hisi-phase.c b/drivers/clk/hisilicon/clk-hisi-phase.c
new file mode 100644
index 000000000000..5bce9297b78b
--- /dev/null
+++ b/drivers/clk/hisilicon/clk-hisi-phase.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2017 HiSilicon Technologies Co., Ltd.
+ *
+ * Simple HiSilicon phase clock implementation.
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+struct clk_hisi_phase {
+ struct clk_hw hw;
+ void __iomem *reg;
+ u32 *phase_degrees;
+ u32 *phase_regvals;
+ u8 phase_num;
+ u32 mask;
+ u8 shift;
+ u8 flags;
+ spinlock_t *lock;
+};
+
+#define to_clk_hisi_phase(_hw) container_of(_hw, struct clk_hisi_phase, hw)
+
+static int hisi_phase_regval_to_degrees(struct clk_hisi_phase *phase,
+ u32 regval)
+{
+ int i;
+
+ for (i = 0; i < phase->phase_num; i++)
+ if (phase->phase_regvals[i] == regval)
+ return phase->phase_degrees[i];
+
+ return -EINVAL;
+}
+
+static int hisi_clk_get_phase(struct clk_hw *hw)
+{
+ struct clk_hisi_phase *phase = to_clk_hisi_phase(hw);
+ u32 regval;
+
+ regval = readl(phase->reg);
+ regval = (regval & phase->mask) >> phase->shift;
+
+ return hisi_phase_regval_to_degrees(phase, regval);
+}
+
+static int hisi_phase_degrees_to_regval(struct clk_hisi_phase *phase,
+ int degrees)
+{
+ int i;
+
+ for (i = 0; i < phase->phase_num; i++)
+ if (phase->phase_degrees[i] == degrees)
+ return phase->phase_regvals[i];
+
+ return -EINVAL;
+}
+
+static int hisi_clk_set_phase(struct clk_hw *hw, int degrees)
+{
+ struct clk_hisi_phase *phase = to_clk_hisi_phase(hw);
+ unsigned long flags = 0;
+ int regval;
+ u32 val;
+
+ regval = hisi_phase_degrees_to_regval(phase, degrees);
+ if (regval < 0)
+ return regval;
+
+ spin_lock_irqsave(phase->lock, flags);
+
+ val = clk_readl(phase->reg);
+ val &= ~phase->mask;
+ val |= regval << phase->shift;
+ clk_writel(val, phase->reg);
+
+ spin_unlock_irqrestore(phase->lock, flags);
+
+ return 0;
+}
+
+static const struct clk_ops clk_phase_ops = {
+ .get_phase = hisi_clk_get_phase,
+ .set_phase = hisi_clk_set_phase,
+};
+
+struct clk *clk_register_hisi_phase(struct device *dev,
+ const struct hisi_phase_clock *clks,
+ void __iomem *base, spinlock_t *lock)
+{
+ struct clk_hisi_phase *phase;
+ struct clk_init_data init;
+
+ phase = devm_kzalloc(dev, sizeof(struct clk_hisi_phase), GFP_KERNEL);
+ if (!phase)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = clks->name;
+ init.ops = &clk_phase_ops;
+ init.flags = clks->flags | CLK_IS_BASIC;
+ init.parent_names = clks->parent_names ? &clks->parent_names : NULL;
+ init.num_parents = clks->parent_names ? 1 : 0;
+
+ phase->reg = base + clks->offset;
+ phase->shift = clks->shift;
+ phase->mask = (BIT(clks->width) - 1) << clks->shift;
+ phase->lock = lock;
+ phase->phase_degrees = clks->phase_degrees;
+ phase->phase_regvals = clks->phase_regvals;
+ phase->phase_num = clks->phase_num;
+ phase->hw.init = &init;
+
+ return devm_clk_register(dev, &phase->hw);
+}
+EXPORT_SYMBOL_GPL(clk_register_hisi_phase);
diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index b73c1dfae7f1..953c8dacef8b 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -49,6 +49,8 @@ struct hisi_clock_data *hisi_clk_alloc(struct platform_device *pdev,
return NULL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return NULL;
clk_data->base = devm_ioremap(&pdev->dev,
res->start, resource_size(res));
if (!clk_data->base)
@@ -197,6 +199,30 @@ err:
}
EXPORT_SYMBOL_GPL(hisi_clk_register_mux);
+int hisi_clk_register_phase(struct device *dev,
+ const struct hisi_phase_clock *clks,
+ int nums, struct hisi_clock_data *data)
+{
+ void __iomem *base = data->base;
+ struct clk *clk;
+ int i;
+
+ for (i = 0; i < nums; i++) {
+ clk = clk_register_hisi_phase(dev, &clks[i], base,
+ &hisi_clk_lock);
+ if (IS_ERR(clk)) {
+ pr_err("%s: failed to register clock %s\n", __func__,
+ clks[i].name);
+ return PTR_ERR(clk);
+ }
+
+ data->clk_data.clks[clks[i].id] = clk;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(hisi_clk_register_phase);
+
int hisi_clk_register_divider(const struct hisi_divider_clock *clks,
int nums, struct hisi_clock_data *data)
{
diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
index 4e1d1affc6f5..8d7ee5c3231b 100644
--- a/drivers/clk/hisilicon/clk.h
+++ b/drivers/clk/hisilicon/clk.h
@@ -68,6 +68,19 @@ struct hisi_mux_clock {
const char *alias;
};
+struct hisi_phase_clock {
+ unsigned int id;
+ const char *name;
+ const char *parent_names;
+ unsigned long flags;
+ unsigned long offset;
+ u8 shift;
+ u8 width;
+ u32 *phase_degrees;
+ u32 *phase_regvals;
+ u8 phase_num;
+};
+
struct hisi_divider_clock {
unsigned int id;
const char *name;
@@ -120,6 +133,12 @@ int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *,
int, struct hisi_clock_data *);
int hisi_clk_register_mux(const struct hisi_mux_clock *, int,
struct hisi_clock_data *);
+struct clk *clk_register_hisi_phase(struct device *dev,
+ const struct hisi_phase_clock *clks,
+ void __iomem *base, spinlock_t *lock);
+int hisi_clk_register_phase(struct device *dev,
+ const struct hisi_phase_clock *clks,
+ int nums, struct hisi_clock_data *data);
int hisi_clk_register_divider(const struct hisi_divider_clock *,
int, struct hisi_clock_data *);
int hisi_clk_register_gate(const struct hisi_gate_clock *,
diff --git a/drivers/clk/hisilicon/crg-hi3516cv300.c b/drivers/clk/hisilicon/crg-hi3516cv300.c
index 2007123832bb..53450b651e4c 100644
--- a/drivers/clk/hisilicon/crg-hi3516cv300.c
+++ b/drivers/clk/hisilicon/crg-hi3516cv300.c
@@ -204,7 +204,7 @@ static const struct hisi_crg_funcs hi3516cv300_crg_funcs = {
/* hi3516CV300 sysctrl CRG */
#define HI3516CV300_SYSCTRL_NR_CLKS 16
-static const char *wdt_mux_p[] __initconst = { "3m", "apb" };
+static const char *const wdt_mux_p[] __initconst = { "3m", "apb" };
static u32 wdt_mux_table[] = {0, 1};
static const struct hisi_mux_clock hi3516cv300_sysctrl_mux_clks[] = {
diff --git a/drivers/clk/hisilicon/crg-hi3798cv200.c b/drivers/clk/hisilicon/crg-hi3798cv200.c
index 8478948e858e..743eec131528 100644
--- a/drivers/clk/hisilicon/crg-hi3798cv200.c
+++ b/drivers/clk/hisilicon/crg-hi3798cv200.c
@@ -27,30 +27,31 @@
#include "reset.h"
/* hi3798CV200 core CRG */
-#define HI3798CV200_INNER_CLK_OFFSET 64
-#define HI3798CV200_FIXED_24M 65
-#define HI3798CV200_FIXED_25M 66
-#define HI3798CV200_FIXED_50M 67
-#define HI3798CV200_FIXED_75M 68
-#define HI3798CV200_FIXED_100M 69
-#define HI3798CV200_FIXED_150M 70
-#define HI3798CV200_FIXED_200M 71
-#define HI3798CV200_FIXED_250M 72
-#define HI3798CV200_FIXED_300M 73
-#define HI3798CV200_FIXED_400M 74
-#define HI3798CV200_MMC_MUX 75
-#define HI3798CV200_ETH_PUB_CLK 76
-#define HI3798CV200_ETH_BUS_CLK 77
-#define HI3798CV200_ETH_BUS0_CLK 78
-#define HI3798CV200_ETH_BUS1_CLK 79
-#define HI3798CV200_COMBPHY1_MUX 80
-#define HI3798CV200_FIXED_12M 81
-#define HI3798CV200_FIXED_48M 82
-#define HI3798CV200_FIXED_60M 83
-#define HI3798CV200_FIXED_166P5M 84
-#define HI3798CV200_SDIO0_MUX 85
-
-#define HI3798CV200_CRG_NR_CLKS 128
+#define HI3798CV200_INNER_CLK_OFFSET 64
+#define HI3798CV200_FIXED_24M 65
+#define HI3798CV200_FIXED_25M 66
+#define HI3798CV200_FIXED_50M 67
+#define HI3798CV200_FIXED_75M 68
+#define HI3798CV200_FIXED_100M 69
+#define HI3798CV200_FIXED_150M 70
+#define HI3798CV200_FIXED_200M 71
+#define HI3798CV200_FIXED_250M 72
+#define HI3798CV200_FIXED_300M 73
+#define HI3798CV200_FIXED_400M 74
+#define HI3798CV200_MMC_MUX 75
+#define HI3798CV200_ETH_PUB_CLK 76
+#define HI3798CV200_ETH_BUS_CLK 77
+#define HI3798CV200_ETH_BUS0_CLK 78
+#define HI3798CV200_ETH_BUS1_CLK 79
+#define HI3798CV200_COMBPHY1_MUX 80
+#define HI3798CV200_FIXED_12M 81
+#define HI3798CV200_FIXED_48M 82
+#define HI3798CV200_FIXED_60M 83
+#define HI3798CV200_FIXED_166P5M 84
+#define HI3798CV200_SDIO0_MUX 85
+#define HI3798CV200_COMBPHY0_MUX 86
+
+#define HI3798CV200_CRG_NR_CLKS 128
static const struct hisi_fixed_rate_clock hi3798cv200_fixed_rate_clks[] = {
{ HISTB_OSC_CLK, "clk_osc", NULL, 0, 24000000, },
@@ -74,9 +75,9 @@ static const char *const mmc_mux_p[] = {
"100m", "50m", "25m", "200m", "150m" };
static u32 mmc_mux_table[] = {0, 1, 2, 3, 6};
-static const char *const comphy1_mux_p[] = {
+static const char *const comphy_mux_p[] = {
"100m", "25m"};
-static u32 comphy1_mux_table[] = {2, 3};
+static u32 comphy_mux_table[] = {2, 3};
static const char *const sdio_mux_p[] = {
"100m", "50m", "150m", "166p5m" };
@@ -85,14 +86,29 @@ static u32 sdio_mux_table[] = {0, 1, 2, 3};
static struct hisi_mux_clock hi3798cv200_mux_clks[] = {
{ HI3798CV200_MMC_MUX, "mmc_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p),
CLK_SET_RATE_PARENT, 0xa0, 8, 3, 0, mmc_mux_table, },
+ { HI3798CV200_COMBPHY0_MUX, "combphy0_mux",
+ comphy_mux_p, ARRAY_SIZE(comphy_mux_p),
+ CLK_SET_RATE_PARENT, 0x188, 2, 2, 0, comphy_mux_table, },
{ HI3798CV200_COMBPHY1_MUX, "combphy1_mux",
- comphy1_mux_p, ARRAY_SIZE(comphy1_mux_p),
- CLK_SET_RATE_PARENT, 0x188, 10, 2, 0, comphy1_mux_table, },
+ comphy_mux_p, ARRAY_SIZE(comphy_mux_p),
+ CLK_SET_RATE_PARENT, 0x188, 10, 2, 0, comphy_mux_table, },
{ HI3798CV200_SDIO0_MUX, "sdio0_mux", sdio_mux_p,
ARRAY_SIZE(sdio_mux_p), CLK_SET_RATE_PARENT,
0x9c, 8, 2, 0, sdio_mux_table, },
};
+static u32 mmc_phase_regvals[] = {0, 1, 2, 3, 4, 5, 6, 7};
+static u32 mmc_phase_degrees[] = {0, 45, 90, 135, 180, 225, 270, 315};
+
+static struct hisi_phase_clock hi3798cv200_phase_clks[] = {
+ { HISTB_MMC_SAMPLE_CLK, "mmc_sample", "clk_mmc_ciu",
+ CLK_SET_RATE_PARENT, 0xa0, 12, 3, mmc_phase_degrees,
+ mmc_phase_regvals, ARRAY_SIZE(mmc_phase_regvals) },
+ { HISTB_MMC_DRV_CLK, "mmc_drive", "clk_mmc_ciu",
+ CLK_SET_RATE_PARENT, 0xa0, 16, 3, mmc_phase_degrees,
+ mmc_phase_regvals, ARRAY_SIZE(mmc_phase_regvals) },
+};
+
static const struct hisi_gate_clock hi3798cv200_gate_clks[] = {
/* UART */
{ HISTB_UART2_CLK, "clk_uart2", "75m",
@@ -147,6 +163,9 @@ static const struct hisi_gate_clock hi3798cv200_gate_clks[] = {
CLK_SET_RATE_PARENT, 0xcc, 4, 0, },
{ HISTB_ETH1_MACIF_CLK, "clk_macif1", "clk_bus_m1",
CLK_SET_RATE_PARENT, 0xcc, 25, 0, },
+ /* COMBPHY0 */
+ { HISTB_COMBPHY0_CLK, "clk_combphy0", "combphy0_mux",
+ CLK_SET_RATE_PARENT, 0x188, 0, 0, },
/* COMBPHY1 */
{ HISTB_COMBPHY1_CLK, "clk_combphy1", "combphy1_mux",
CLK_SET_RATE_PARENT, 0x188, 8, 0, },
@@ -161,6 +180,8 @@ static const struct hisi_gate_clock hi3798cv200_gate_clks[] = {
CLK_SET_RATE_PARENT, 0xb8, 1, 0 },
{ HISTB_USB2_UTMI_CLK, "clk_u2_utmi", "60m",
CLK_SET_RATE_PARENT, 0xb8, 5, 0 },
+ { HISTB_USB2_OTG_UTMI_CLK, "clk_u2_otg_utmi", "60m",
+ CLK_SET_RATE_PARENT, 0xb8, 3, 0 },
{ HISTB_USB2_PHY1_REF_CLK, "clk_u2_phy1_ref", "24m",
CLK_SET_RATE_PARENT, 0xbc, 0, 0 },
{ HISTB_USB2_PHY2_REF_CLK, "clk_u2_phy2_ref", "24m",
@@ -177,6 +198,14 @@ static struct hisi_clock_data *hi3798cv200_clk_register(
if (!clk_data)
return ERR_PTR(-ENOMEM);
+ /* hisi_phase_clock is resource managed */
+ ret = hisi_clk_register_phase(&pdev->dev,
+ hi3798cv200_phase_clks,
+ ARRAY_SIZE(hi3798cv200_phase_clks),
+ clk_data);
+ if (ret)
+ return ERR_PTR(ret);
+
ret = hisi_clk_register_fixed_rate(hi3798cv200_fixed_rate_clks,
ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
clk_data);
@@ -202,18 +231,17 @@ static struct hisi_clock_data *hi3798cv200_clk_register(
return clk_data;
-unregister_fixed_rate:
- hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks,
- ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
+unregister_gate:
+ hisi_clk_unregister_gate(hi3798cv200_gate_clks,
+ ARRAY_SIZE(hi3798cv200_gate_clks),
clk_data);
-
unregister_mux:
hisi_clk_unregister_mux(hi3798cv200_mux_clks,
ARRAY_SIZE(hi3798cv200_mux_clks),
clk_data);
-unregister_gate:
- hisi_clk_unregister_gate(hi3798cv200_gate_clks,
- ARRAY_SIZE(hi3798cv200_gate_clks),
+unregister_fixed_rate:
+ hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks,
+ ARRAY_SIZE(hi3798cv200_fixed_rate_clks),
clk_data);
return ERR_PTR(ret);
}
@@ -245,7 +273,7 @@ static const struct hisi_crg_funcs hi3798cv200_crg_funcs = {
#define HI3798CV200_SYSCTRL_NR_CLKS 16
static const struct hisi_gate_clock hi3798cv200_sysctrl_gate_clks[] = {
- { HISTB_IR_CLK, "clk_ir", "100m",
+ { HISTB_IR_CLK, "clk_ir", "24m",
CLK_SET_RATE_PARENT, 0x48, 4, 0, },
{ HISTB_TIMER01_CLK, "clk_timer01", "24m",
CLK_SET_RATE_PARENT, 0x48, 6, 0, },
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 13:38:20 +0100