[PATCH v5 06/17] clk: starfive: Add StarFive JH7110 clock driver
Yanhong Wang
yanhong.wang at starfivetech.com
Wed Mar 29 05:42:13 CEST 2023
Add a DM clock driver for StarFive JH7110 SoC.
Signed-off-by: Yanhong Wang <yanhong.wang at starfivetech.com>
Tested-by: Conor Dooley <conor.dooley at microchip.com>
---
drivers/clk/Kconfig | 1 +
drivers/clk/Makefile | 1 +
drivers/clk/starfive/Kconfig | 17 +
drivers/clk/starfive/Makefile | 4 +
drivers/clk/starfive/clk-jh7110-pll.c | 321 ++++++++++++++
drivers/clk/starfive/clk-jh7110.c | 603 ++++++++++++++++++++++++++
drivers/clk/starfive/clk.h | 57 +++
7 files changed, 1004 insertions(+)
create mode 100644 drivers/clk/starfive/Kconfig
create mode 100644 drivers/clk/starfive/Makefile
create mode 100644 drivers/clk/starfive/clk-jh7110-pll.c
create mode 100644 drivers/clk/starfive/clk-jh7110.c
create mode 100644 drivers/clk/starfive/clk.h
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 09aa97ee8c..4d60c84aad 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -235,6 +235,7 @@ source "drivers/clk/owl/Kconfig"
source "drivers/clk/renesas/Kconfig"
source "drivers/clk/sunxi/Kconfig"
source "drivers/clk/sifive/Kconfig"
+source "drivers/clk/starfive/Kconfig"
source "drivers/clk/stm32/Kconfig"
source "drivers/clk/tegra/Kconfig"
source "drivers/clk/ti/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index c274cda77c..66f5860356 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_$(SPL_TPL_)CLK_COMPOSITE_CCF) += clk-composite.o
obj-y += analogbits/
obj-y += imx/
+obj-$(CONFIG_CLK_JH7110) += starfive/
obj-y += tegra/
obj-y += ti/
obj-$(CONFIG_$(SPL_TPL_)CLK_INTEL) += intel/
diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
new file mode 100644
index 0000000000..9399ef6d51
--- /dev/null
+++ b/drivers/clk/starfive/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+config SPL_CLK_JH7110
+ bool "SPL clock support for JH7110"
+ depends on STARFIVE_JH7110 && SPL
+ select SPL_CLK
+ select SPL_CLK_CCF
+ help
+ This enables SPL DM support for clock driver in JH7110.
+
+config CLK_JH7110
+ bool "StarFive JH7110 clock support"
+ depends on STARFIVE_JH7110
+ select CLK
+ select CLK_CCF
+ help
+ This enables support clock driver for StarFive JH7110 SoC platform.
diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
new file mode 100644
index 0000000000..ec0d157094
--- /dev/null
+++ b/drivers/clk/starfive/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += clk-jh7110.o
+obj-y += clk-jh7110-pll.o
diff --git a/drivers/clk/starfive/clk-jh7110-pll.c b/drivers/clk/starfive/clk-jh7110-pll.c
new file mode 100644
index 0000000000..02e6d9000e
--- /dev/null
+++ b/drivers/clk/starfive/clk-jh7110-pll.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022-23 StarFive Technology Co., Ltd.
+ *
+ * Author: Yanhong Wang <yanhong.wang at starfivetech.com>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <malloc.h>
+#include <clk-uclass.h>
+#include <div64.h>
+#include <dm/device.h>
+#include <linux/bitops.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+#include "clk.h"
+
+#define UBOOT_DM_CLK_JH7110_PLLX "jh7110_clk_pllx"
+
+#define PLL_PD_OFF 1
+#define PLL_PD_ON 0
+
+#define CLK_DDR_BUS_MASK GENMASK(29, 24)
+#define CLK_DDR_BUS_OFFSET 0xAC
+#define CLK_DDR_BUS_OSC_DIV2 0
+#define CLK_DDR_BUS_PLL1_DIV2 1
+#define CLK_DDR_BUS_PLL1_DIV4 2
+#define CLK_DDR_BUS_PLL1_DIV8 3
+
+struct clk_jh7110_pllx {
+ struct clk clk;
+ void __iomem *base;
+ void __iomem *sysreg;
+ enum starfive_pll_type type;
+ const struct starfive_pllx_offset *offset;
+ const struct starfive_pllx_rate *rate_table;
+ int rate_count;
+};
+
+#define getbits_le32(addr, mask) ((in_le32(addr) & (mask)) >> __ffs((mask)))
+
+#define PLLX_SET(offset, mask, val) do {\
+ reg = readl((ulong *)((ulong)pll->base + (offset))); \
+ reg &= ~(mask); \
+ reg |= (mask) & ((val) << __ffs(mask)); \
+ writel(reg, (ulong *)((ulong)pll->base + (offset))); \
+ } while (0)
+
+#define PLLX_RATE(_rate, _pd, _fd) \
+ { \
+ .rate = (_rate), \
+ .prediv = (_pd), \
+ .fbdiv = (_fd), \
+ }
+
+#define to_clk_pllx(_clk) container_of(_clk, struct clk_jh7110_pllx, clk)
+
+static const struct starfive_pllx_rate jh7110_pll0_tbl[] = {
+ PLLX_RATE(375000000UL, 8, 125),
+ PLLX_RATE(500000000UL, 6, 125),
+ PLLX_RATE(625000000UL, 24, 625),
+ PLLX_RATE(750000000UL, 4, 125),
+ PLLX_RATE(875000000UL, 24, 875),
+ PLLX_RATE(1000000000UL, 3, 125),
+ PLLX_RATE(1250000000UL, 12, 625),
+ PLLX_RATE(1375000000UL, 24, 1375),
+ PLLX_RATE(1500000000UL, 2, 125),
+ PLLX_RATE(1625000000UL, 24, 1625),
+ PLLX_RATE(1750000000UL, 12, 875),
+ PLLX_RATE(1800000000UL, 3, 225),
+};
+
+static const struct starfive_pllx_rate jh7110_pll1_tbl[] = {
+ PLLX_RATE(1066000000UL, 12, 533),
+ PLLX_RATE(1200000000UL, 1, 50),
+ PLLX_RATE(1400000000UL, 6, 350),
+ PLLX_RATE(1600000000UL, 3, 200),
+};
+
+static const struct starfive_pllx_rate jh7110_pll2_tbl[] = {
+ PLLX_RATE(1228800000UL, 15, 768),
+ PLLX_RATE(1188000000UL, 2, 99),
+};
+
+static const struct starfive_pllx_offset jh7110_pll0_offset = {
+ .pd = 0x20,
+ .prediv = 0x24,
+ .fbdiv = 0x1c,
+ .frac = 0x20,
+ .postdiv1 = 0x20,
+ .dacpd = 0x18,
+ .dsmpd = 0x18,
+ .pd_mask = BIT(27),
+ .prediv_mask = GENMASK(5, 0),
+ .fbdiv_mask = GENMASK(11, 0),
+ .frac_mask = GENMASK(23, 0),
+ .postdiv1_mask = GENMASK(29, 28),
+ .dacpd_mask = BIT(24),
+ .dsmpd_mask = BIT(25)
+};
+
+static const struct starfive_pllx_offset jh7110_pll1_offset = {
+ .pd = 0x28,
+ .prediv = 0x2c,
+ .fbdiv = 0x24,
+ .frac = 0x28,
+ .postdiv1 = 0x28,
+ .dacpd = 0x24,
+ .dsmpd = 0x24,
+ .pd_mask = BIT(27),
+ .prediv_mask = GENMASK(5, 0),
+ .fbdiv_mask = GENMASK(28, 17),
+ .frac_mask = GENMASK(23, 0),
+ .postdiv1_mask = GENMASK(29, 28),
+ .dacpd_mask = BIT(15),
+ .dsmpd_mask = BIT(16)
+};
+
+static const struct starfive_pllx_offset jh7110_pll2_offset = {
+ .pd = 0x30,
+ .prediv = 0x34,
+ .fbdiv = 0x2c,
+ .frac = 0x30,
+ .postdiv1 = 0x30,
+ .dacpd = 0x2c,
+ .dsmpd = 0x2c,
+ .pd_mask = BIT(27),
+ .prediv_mask = GENMASK(5, 0),
+ .fbdiv_mask = GENMASK(28, 17),
+ .frac_mask = GENMASK(23, 0),
+ .postdiv1_mask = GENMASK(29, 28),
+ .dacpd_mask = BIT(15),
+ .dsmpd_mask = BIT(16)
+};
+
+struct starfive_pllx_clk starfive_jh7110_pll0 __initdata = {
+ .type = PLL0,
+ .offset = &jh7110_pll0_offset,
+ .rate_table = jh7110_pll0_tbl,
+ .rate_count = ARRAY_SIZE(jh7110_pll0_tbl),
+};
+
+struct starfive_pllx_clk starfive_jh7110_pll1 __initdata = {
+ .type = PLL1,
+ .offset = &jh7110_pll1_offset,
+ .rate_table = jh7110_pll1_tbl,
+ .rate_count = ARRAY_SIZE(jh7110_pll1_tbl),
+};
+
+struct starfive_pllx_clk starfive_jh7110_pll2 __initdata = {
+ .type = PLL2,
+ .offset = &jh7110_pll2_offset,
+ .rate_table = jh7110_pll2_tbl,
+ .rate_count = ARRAY_SIZE(jh7110_pll2_tbl),
+};
+
+static const struct starfive_pllx_rate *
+jh7110_get_pll_settings(struct clk_jh7110_pllx *pll, unsigned long rate)
+{
+ for (int i = 0; i < pll->rate_count; i++)
+ if (rate == pll->rate_table[i].rate)
+ return &pll->rate_table[i];
+
+ return NULL;
+}
+
+static void jh7110_pll_set_rate(struct clk_jh7110_pllx *pll,
+ const struct starfive_pllx_rate *rate)
+{
+ u32 reg;
+ bool set = (pll->type == PLL1) ? true : false;
+
+ if (set) {
+ reg = readl((ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+ reg &= ~CLK_DDR_BUS_MASK;
+ reg |= CLK_DDR_BUS_OSC_DIV2 << __ffs(CLK_DDR_BUS_MASK);
+ writel(reg, (ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+ }
+
+ PLLX_SET(pll->offset->pd, pll->offset->pd_mask, PLL_PD_OFF);
+ PLLX_SET(pll->offset->dacpd, pll->offset->dacpd_mask, 1);
+ PLLX_SET(pll->offset->dsmpd, pll->offset->dsmpd_mask, 1);
+ PLLX_SET(pll->offset->prediv, pll->offset->prediv_mask, rate->prediv);
+ PLLX_SET(pll->offset->fbdiv, pll->offset->fbdiv_mask, rate->fbdiv);
+ PLLX_SET(pll->offset->postdiv1, pll->offset->postdiv1, 0);
+ PLLX_SET(pll->offset->pd, pll->offset->pd_mask, PLL_PD_ON);
+
+ if (set) {
+ udelay(100);
+ reg = readl((ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+ reg &= ~CLK_DDR_BUS_MASK;
+ reg |= CLK_DDR_BUS_PLL1_DIV2 << __ffs(CLK_DDR_BUS_MASK);
+ writel(reg, (ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+ }
+}
+
+static ulong jh7110_pllx_recalc_rate(struct clk *clk)
+{
+ struct clk_jh7110_pllx *pll = to_clk_pllx(dev_get_clk_ptr(clk->dev));
+ u64 refclk = clk_get_parent_rate(clk);
+ u32 dacpd, dsmpd;
+ u32 prediv, fbdiv, postdiv1;
+ u64 frac;
+
+ dacpd = getbits_le32((ulong)pll->base + pll->offset->dacpd,
+ pll->offset->dacpd_mask);
+ dsmpd = getbits_le32((ulong)pll->base + pll->offset->dsmpd,
+ pll->offset->dsmpd_mask);
+ prediv = getbits_le32((ulong)pll->base + pll->offset->prediv,
+ pll->offset->prediv_mask);
+ fbdiv = getbits_le32((ulong)pll->base + pll->offset->fbdiv,
+ pll->offset->fbdiv_mask);
+ postdiv1 = 1 << getbits_le32((ulong)pll->base + pll->offset->postdiv1,
+ pll->offset->postdiv1_mask);
+ frac = (u64)getbits_le32((ulong)pll->base + pll->offset->frac,
+ pll->offset->frac_mask);
+
+ /* Integer Multiple Mode
+ * Both dacpd and dsmpd should be set as 1 while integer multiple mode.
+ *
+ * The frequency of outputs can be figured out as below.
+ *
+ * Fvco = Fref*Nl/M
+ * NI is integer frequency dividing ratio of feedback divider, set by fbdiv1[11:0] ,
+ * NI = 8, 9, 10, 12.13....4095
+ * M is frequency dividing ratio of pre-divider, set by prediv[5:0],M = 1,2...63
+ *
+ * Fclko1 = Fvco/Q1
+ * Q1 is frequency dividing ratio of post divider, set by postdiv1[1:0],Q1= 1,2,4,8
+ *
+ * Fraction Multiple Mode
+ *
+ * Both dacpd and dsmpd should be set as 0 while integer multiple mode.
+ *
+ * Fvco = Fref*(NI+NF)/M
+ * NI is integer frequency dividing ratio of feedback divider, set by fbdiv[11:0] ,
+ * NI = 8, 9, 10, 12.13....4095
+ * NF is fractional frequency dividing ratio, set by frac[23:0], NF =frac[23:0]/2^24= 0~0.99999994
+ * M is frequency dividing ratio of pre-divider, set by prediv[5:0],M = 1,2...63
+ *
+ * Fclko1 = Fvco/Q1
+ * Q1 is frequency dividing ratio of post divider, set by postdivl[1:0],Q1= 1,2,4,8
+ */
+ if (dacpd == 1 && dsmpd == 1)
+ frac = 0;
+ else if (dacpd == 0 && dsmpd == 0)
+ do_div(frac, 1 << 24);
+ else
+ return -EINVAL;
+
+ refclk *= (fbdiv + frac);
+ do_div(refclk, prediv * postdiv1);
+
+ return refclk;
+}
+
+static ulong jh7110_pllx_set_rate(struct clk *clk, ulong drate)
+{
+ struct clk_jh7110_pllx *pll = to_clk_pllx(dev_get_clk_ptr(clk->dev));
+ const struct starfive_pllx_rate *rate;
+
+ rate = jh7110_get_pll_settings(pll, drate);
+ if (!rate)
+ return -EINVAL;
+
+ jh7110_pll_set_rate(pll, rate);
+
+ return jh7110_pllx_recalc_rate(clk);
+}
+
+static const struct clk_ops clk_jh7110_ops = {
+ .set_rate = jh7110_pllx_set_rate,
+ .get_rate = jh7110_pllx_recalc_rate,
+};
+
+struct clk *starfive_jh7110_pll(const char *name, const char *parent_name,
+ void __iomem *base, void __iomem *sysreg,
+ const struct starfive_pllx_clk *pll_clk)
+{
+ struct clk_jh7110_pllx *pll;
+ struct clk *clk;
+ int ret;
+
+ if (!pll_clk || !base || !sysreg)
+ return ERR_PTR(-EINVAL);
+
+ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ if (!pll)
+ return ERR_PTR(-ENOMEM);
+
+ pll->base = base;
+ pll->sysreg = sysreg;
+ pll->type = pll_clk->type;
+ pll->offset = pll_clk->offset;
+ pll->rate_table = pll_clk->rate_table;
+ pll->rate_count = pll_clk->rate_count;
+
+ clk = &pll->clk;
+ ret = clk_register(clk, UBOOT_DM_CLK_JH7110_PLLX, name, parent_name);
+ if (ret) {
+ kfree(pll);
+ return ERR_PTR(ret);
+ }
+
+ if (IS_ENABLED(CONFIG_SPL_BUILD) && pll->type == PLL0)
+ jh7110_pllx_set_rate(clk, 1000000000);
+
+ if (IS_ENABLED(CONFIG_SPL_BUILD) && pll->type == PLL2)
+ jh7110_pllx_set_rate(clk, 1188000000);
+
+ return clk;
+}
+
+U_BOOT_DRIVER(jh7110_clk_pllx) = {
+ .name = UBOOT_DM_CLK_JH7110_PLLX,
+ .id = UCLASS_CLK,
+ .ops = &clk_jh7110_ops,
+};
diff --git a/drivers/clk/starfive/clk-jh7110.c b/drivers/clk/starfive/clk-jh7110.c
new file mode 100644
index 0000000000..a74b70906a
--- /dev/null
+++ b/drivers/clk/starfive/clk-jh7110.c
@@ -0,0 +1,603 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022-23 StarFive Technology Co., Ltd.
+ *
+ * Author: Yanhong Wang <yanhong.wang at starfivetech.com>
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <dm/device.h>
+#include <dm/devres.h>
+#include <dm/lists.h>
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+#include <log.h>
+#include <linux/clk-provider.h>
+
+#include "clk.h"
+
+#define STARFIVE_CLK_ENABLE_SHIFT 31 /* [31] */
+#define STARFIVE_CLK_INVERT_SHIFT 30 /* [30] */
+#define STARFIVE_CLK_MUX_SHIFT 24 /* [29:24] */
+#define STARFIVE_CLK_DIV_SHIFT 0 /* [23:0] */
+
+#define OFFSET(id) ((id) * 4)
+#define AONOFFSET(id) (((id) - JH7110_SYSCLK_END) * 4)
+#define STGOFFSET(id) (((id) - JH7110_AONCLK_END) * 4)
+
+typedef int (*jh1710_init_fn)(struct udevice *dev);
+
+struct jh7110_clk_priv {
+ void __iomem *reg;
+ jh1710_init_fn init;
+};
+
+static const char *cpu_root_sels[2] = {
+ [0] = "oscillator",
+ [1] = "pll0_out",
+};
+
+static const char *perh_root_sels[2] = {
+ [0] = "pll0_out",
+ [1] = "pll2_out",
+};
+
+static const char *bus_root_sels[2] = {
+ [0] = "oscillator",
+ [1] = "pll2_out",
+};
+
+static const char *qspi_ref_sels[2] = {
+ [0] = "oscillator",
+ [1] = "qspi_ref_src",
+};
+
+static const char *gmac1_tx_sels[2] = {
+ [0] = "gmac1_gtxclk",
+ [1] = "gmac1_rmii_rtx",
+};
+
+static const char *gmac0_tx_sels[2] = {
+ [0] = "gmac0_gtxclk",
+ [1] = "gmac0_rmii_rtx",
+};
+
+static const char *apb_func_sels[2] = {
+ [0] = "osc_div4",
+ [1] = "oscillator",
+};
+
+static const char *gmac1_rx_sels[2] = {
+ [0] = "gmac1-rgmii-rxin-clock",
+ [1] = "gmac1_rmii_rtx",
+};
+
+static struct clk *starfive_clk_mux(void __iomem *reg,
+ const char *name,
+ unsigned int offset,
+ u8 width,
+ const char * const *parent_names,
+ u8 num_parents)
+{
+ return clk_register_mux(NULL, name, parent_names, num_parents, 0,
+ reg + offset, STARFIVE_CLK_MUX_SHIFT,
+ width, 0);
+}
+
+static struct clk *starfive_clk_gate(void __iomem *reg,
+ const char *name,
+ const char *parent_name,
+ unsigned int offset)
+{
+ return clk_register_gate(NULL, name, parent_name, 0, reg + offset,
+ STARFIVE_CLK_ENABLE_SHIFT, 0, NULL);
+}
+
+static struct clk *starfive_clk_inv(void __iomem *reg,
+ const char *name,
+ const char *parent_name,
+ unsigned int offset)
+{
+ return clk_register_gate(NULL, name, parent_name, 0, reg + offset,
+ STARFIVE_CLK_INVERT_SHIFT, 0, NULL);
+}
+
+static struct clk *starfive_clk_divider(void __iomem *reg,
+ const char *name,
+ const char *parent_name,
+ unsigned int offset,
+ u8 width)
+{
+ return clk_register_divider(NULL, name, parent_name, 0, reg + offset,
+ 0, width, CLK_DIVIDER_ONE_BASED);
+}
+
+static struct clk *starfive_clk_composite(void __iomem *reg,
+ const char *name,
+ const char * const *parent_names,
+ unsigned int num_parents,
+ unsigned int offset,
+ unsigned int mux_width,
+ unsigned int gate_width,
+ unsigned int div_width)
+{
+ struct clk *clk = ERR_PTR(-ENOMEM);
+ struct clk_divider *div = NULL;
+ struct clk_gate *gate = NULL;
+ struct clk_mux *mux = NULL;
+ int mask_arry[4] = {0x1, 0x3, 0x7, 0xF};
+ int mask;
+
+ if (mux_width) {
+ if (mux_width > 4)
+ goto fail;
+ else
+ mask = mask_arry[mux_width - 1];
+
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ goto fail;
+
+ mux->reg = reg + offset;
+ mux->mask = mask;
+ mux->shift = STARFIVE_CLK_MUX_SHIFT;
+ mux->num_parents = num_parents;
+ mux->flags = 0;
+ mux->parent_names = parent_names;
+ }
+
+ if (gate_width) {
+ gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+
+ if (!gate)
+ goto fail;
+
+ gate->reg = reg + offset;
+ gate->bit_idx = STARFIVE_CLK_ENABLE_SHIFT;
+ gate->flags = 0;
+ }
+
+ if (div_width) {
+ div = kzalloc(sizeof(*div), GFP_KERNEL);
+ if (!div)
+ goto fail;
+
+ div->reg = reg + offset;
+
+ if (offset == OFFSET(JH7110_SYSCLK_UART3_CORE) ||
+ offset == OFFSET(JH7110_SYSCLK_UART4_CORE) ||
+ offset == OFFSET(JH7110_SYSCLK_UART5_CORE)) {
+ div->shift = 8;
+ div->width = 8;
+ } else {
+ div->shift = STARFIVE_CLK_DIV_SHIFT;
+ div->width = div_width;
+ }
+ div->flags = CLK_DIVIDER_ONE_BASED;
+ div->table = NULL;
+ }
+
+ clk = clk_register_composite(NULL, name,
+ parent_names, num_parents,
+ &mux->clk, &clk_mux_ops,
+ &div->clk, &clk_divider_ops,
+ &gate->clk, &clk_gate_ops, 0);
+
+ if (IS_ERR(clk))
+ goto fail;
+
+ return clk;
+
+fail:
+ kfree(gate);
+ kfree(div);
+ kfree(mux);
+ return ERR_CAST(clk);
+}
+
+static struct clk *starfive_clk_fix_parent_composite(void __iomem *reg,
+ const char *name,
+ const char *parent_names,
+ unsigned int offset,
+ unsigned int mux_width,
+ unsigned int gate_width,
+ unsigned int div_width)
+{
+ const char * const *parents;
+
+ parents = &parent_names;
+
+ return starfive_clk_composite(reg, name, parents, 1, offset,
+ mux_width, gate_width, div_width);
+}
+
+static struct clk *starfive_clk_gate_divider(void __iomem *reg,
+ const char *name,
+ const char *parent,
+ unsigned int offset,
+ unsigned int width)
+{
+ const char * const *parent_names;
+
+ parent_names = &parent;
+
+ return starfive_clk_composite(reg, name, parent_names, 1,
+ offset, 0, 1, width);
+}
+
+static int jh7110_syscrg_init(struct udevice *dev)
+{
+ struct jh7110_clk_priv *priv = dev_get_priv(dev);
+ struct ofnode_phandle_args args;
+ fdt_addr_t addr;
+ struct clk *pclk;
+ int ret;
+
+ ret = ofnode_parse_phandle_with_args(dev->node_, "starfive,sys-syscon", NULL, 0, 0, &args);
+ if (ret)
+ return ret;
+
+ addr = ofnode_get_addr(args.node);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ clk_dm(JH7110_SYSCLK_PLL0_OUT,
+ starfive_jh7110_pll("pll0_out", "oscillator", (void __iomem *)addr,
+ priv->reg, &starfive_jh7110_pll0));
+ clk_dm(JH7110_SYSCLK_PLL1_OUT,
+ starfive_jh7110_pll("pll1_out", "oscillator", (void __iomem *)addr,
+ priv->reg, &starfive_jh7110_pll1));
+ clk_dm(JH7110_SYSCLK_PLL2_OUT,
+ starfive_jh7110_pll("pll2_out", "oscillator", (void __iomem *)addr,
+ priv->reg, &starfive_jh7110_pll2));
+ clk_dm(JH7110_SYSCLK_CPU_ROOT,
+ starfive_clk_mux(priv->reg, "cpu_root",
+ OFFSET(JH7110_SYSCLK_CPU_ROOT), 1,
+ cpu_root_sels, ARRAY_SIZE(cpu_root_sels)));
+ clk_dm(JH7110_SYSCLK_CPU_CORE,
+ starfive_clk_divider(priv->reg,
+ "cpu_core", "cpu_root",
+ OFFSET(JH7110_SYSCLK_CPU_CORE), 3));
+ clk_dm(JH7110_SYSCLK_CPU_BUS,
+ starfive_clk_divider(priv->reg,
+ "cpu_bus", "cpu_core",
+ OFFSET(JH7110_SYSCLK_CPU_BUS), 2));
+ clk_dm(JH7110_SYSCLK_PERH_ROOT,
+ starfive_clk_composite(priv->reg,
+ "perh_root",
+ perh_root_sels, ARRAY_SIZE(perh_root_sels),
+ OFFSET(JH7110_SYSCLK_PERH_ROOT), 1, 0, 2));
+ clk_dm(JH7110_SYSCLK_BUS_ROOT,
+ starfive_clk_mux(priv->reg, "bus_root",
+ OFFSET(JH7110_SYSCLK_BUS_ROOT), 1,
+ bus_root_sels, ARRAY_SIZE(bus_root_sels)));
+ clk_dm(JH7110_SYSCLK_NOCSTG_BUS,
+ starfive_clk_divider(priv->reg,
+ "nocstg_bus", "bus_root",
+ OFFSET(JH7110_SYSCLK_NOCSTG_BUS), 3));
+ clk_dm(JH7110_SYSCLK_AXI_CFG0,
+ starfive_clk_divider(priv->reg,
+ "axi_cfg0", "bus_root",
+ OFFSET(JH7110_SYSCLK_AXI_CFG0), 2));
+ clk_dm(JH7110_SYSCLK_STG_AXIAHB,
+ starfive_clk_divider(priv->reg,
+ "stg_axiahb", "axi_cfg0",
+ OFFSET(JH7110_SYSCLK_STG_AXIAHB), 2));
+ clk_dm(JH7110_SYSCLK_AHB0,
+ starfive_clk_gate(priv->reg,
+ "ahb0", "stg_axiahb",
+ OFFSET(JH7110_SYSCLK_AHB0)));
+ clk_dm(JH7110_SYSCLK_AHB1,
+ starfive_clk_gate(priv->reg,
+ "ahb1", "stg_axiahb",
+ OFFSET(JH7110_SYSCLK_AHB1)));
+ clk_dm(JH7110_SYSCLK_APB_BUS,
+ starfive_clk_divider(priv->reg,
+ "apb_bus", "stg_axiahb",
+ OFFSET(JH7110_SYSCLK_APB_BUS), 4));
+ clk_dm(JH7110_SYSCLK_APB0,
+ starfive_clk_gate(priv->reg,
+ "apb0", "apb_bus",
+ OFFSET(JH7110_SYSCLK_APB0)));
+ clk_dm(JH7110_SYSCLK_QSPI_AHB,
+ starfive_clk_gate(priv->reg,
+ "qspi_ahb", "ahb1",
+ OFFSET(JH7110_SYSCLK_QSPI_AHB)));
+ clk_dm(JH7110_SYSCLK_QSPI_APB,
+ starfive_clk_gate(priv->reg,
+ "qspi_apb", "apb_bus",
+ OFFSET(JH7110_SYSCLK_QSPI_APB)));
+ clk_dm(JH7110_SYSCLK_QSPI_REF_SRC,
+ starfive_clk_divider(priv->reg,
+ "qspi_ref_src", "pll0_out",
+ OFFSET(JH7110_SYSCLK_QSPI_REF_SRC), 5));
+ clk_dm(JH7110_SYSCLK_QSPI_REF,
+ starfive_clk_composite(priv->reg,
+ "qspi_ref",
+ qspi_ref_sels, ARRAY_SIZE(qspi_ref_sels),
+ OFFSET(JH7110_SYSCLK_QSPI_REF), 1, 1, 0));
+ clk_dm(JH7110_SYSCLK_SDIO0_AHB,
+ starfive_clk_gate(priv->reg,
+ "sdio0_ahb", "ahb0",
+ OFFSET(JH7110_SYSCLK_SDIO0_AHB)));
+ clk_dm(JH7110_SYSCLK_SDIO1_AHB,
+ starfive_clk_gate(priv->reg,
+ "sdio1_ahb", "ahb0",
+ OFFSET(JH7110_SYSCLK_SDIO1_AHB)));
+ clk_dm(JH7110_SYSCLK_SDIO0_SDCARD,
+ starfive_clk_fix_parent_composite(priv->reg,
+ "sdio0_sdcard", "axi_cfg0",
+ OFFSET(JH7110_SYSCLK_SDIO0_SDCARD), 0, 1, 4));
+ clk_dm(JH7110_SYSCLK_SDIO1_SDCARD,
+ starfive_clk_fix_parent_composite(priv->reg,
+ "sdio1_sdcard", "axi_cfg0",
+ OFFSET(JH7110_SYSCLK_SDIO1_SDCARD), 0, 1, 4));
+ clk_dm(JH7110_SYSCLK_USB_125M,
+ starfive_clk_divider(priv->reg,
+ "usb_125m", "pll0_out",
+ OFFSET(JH7110_SYSCLK_USB_125M), 4));
+ clk_dm(JH7110_SYSCLK_NOC_BUS_STG_AXI,
+ starfive_clk_gate(priv->reg,
+ "noc_bus_stg_axi", "nocstg_bus",
+ OFFSET(JH7110_SYSCLK_NOC_BUS_STG_AXI)));
+ clk_dm(JH7110_SYSCLK_GMAC1_AHB,
+ starfive_clk_gate(priv->reg,
+ "gmac1_ahb", "ahb0",
+ OFFSET(JH7110_SYSCLK_GMAC1_AHB)));
+ clk_dm(JH7110_SYSCLK_GMAC1_AXI,
+ starfive_clk_gate(priv->reg,
+ "gmac1_axi", "stg_axiahb",
+ OFFSET(JH7110_SYSCLK_GMAC1_AXI)));
+ clk_dm(JH7110_SYSCLK_GMAC_SRC,
+ starfive_clk_divider(priv->reg,
+ "gmac_src", "pll0_out",
+ OFFSET(JH7110_SYSCLK_GMAC_SRC), 3));
+ clk_dm(JH7110_SYSCLK_GMAC1_GTXCLK,
+ starfive_clk_divider(priv->reg,
+ "gmac1_gtxclk", "pll0_out",
+ OFFSET(JH7110_SYSCLK_GMAC1_GTXCLK), 4));
+ clk_dm(JH7110_SYSCLK_GMAC1_GTXC,
+ starfive_clk_gate(priv->reg,
+ "gmac1_gtxc", "gmac1_gtxclk",
+ OFFSET(JH7110_SYSCLK_GMAC1_GTXC)));
+ clk_dm(JH7110_SYSCLK_GMAC1_RMII_RTX,
+ starfive_clk_divider(priv->reg,
+ "gmac1_rmii_rtx", "gmac1-rmii-refin-clock",
+ OFFSET(JH7110_SYSCLK_GMAC1_RMII_RTX), 5));
+ clk_dm(JH7110_SYSCLK_GMAC1_PTP,
+ starfive_clk_gate_divider(priv->reg,
+ "gmac1_ptp", "gmac_src",
+ OFFSET(JH7110_SYSCLK_GMAC1_PTP), 5));
+ clk_dm(JH7110_SYSCLK_GMAC1_RX,
+ starfive_clk_mux(priv->reg, "gmac1_rx",
+ OFFSET(JH7110_SYSCLK_GMAC1_RX), 1,
+ gmac1_rx_sels, ARRAY_SIZE(gmac1_rx_sels)));
+ clk_dm(JH7110_SYSCLK_GMAC1_TX,
+ starfive_clk_composite(priv->reg,
+ "gmac1_tx",
+ gmac1_tx_sels, ARRAY_SIZE(gmac1_tx_sels),
+ OFFSET(JH7110_SYSCLK_GMAC1_TX), 1, 1, 0));
+ clk_dm(JH7110_SYSCLK_GMAC1_TX_INV,
+ starfive_clk_inv(priv->reg,
+ "gmac1_tx_inv", "gmac1_tx",
+ OFFSET(JH7110_SYSCLK_GMAC1_TX_INV)));
+ clk_dm(JH7110_SYSCLK_GMAC0_GTXCLK,
+ starfive_clk_gate_divider(priv->reg,
+ "gmac0_gtxclk", "pll0_out",
+ OFFSET(JH7110_SYSCLK_GMAC0_GTXCLK), 4));
+ clk_dm(JH7110_SYSCLK_GMAC0_PTP,
+ starfive_clk_gate_divider(priv->reg,
+ "gmac0_ptp", "gmac_src",
+ OFFSET(JH7110_SYSCLK_GMAC0_PTP), 5));
+ clk_dm(JH7110_SYSCLK_GMAC0_GTXC,
+ starfive_clk_gate(priv->reg,
+ "gmac0_gtxc", "gmac0_gtxclk",
+ OFFSET(JH7110_SYSCLK_GMAC0_GTXC)));
+ clk_dm(JH7110_SYSCLK_UART0_APB,
+ starfive_clk_gate(priv->reg,
+ "uart0_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_UART0_APB)));
+ clk_dm(JH7110_SYSCLK_UART0_CORE,
+ starfive_clk_gate(priv->reg,
+ "uart0_core", "oscillator",
+ OFFSET(JH7110_SYSCLK_UART0_CORE)));
+ clk_dm(JH7110_SYSCLK_UART1_APB,
+ starfive_clk_gate(priv->reg,
+ "uart1_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_UART1_APB)));
+ clk_dm(JH7110_SYSCLK_UART1_CORE,
+ starfive_clk_gate(priv->reg,
+ "uart1_core", "oscillator",
+ OFFSET(JH7110_SYSCLK_UART1_CORE)));
+ clk_dm(JH7110_SYSCLK_UART2_APB,
+ starfive_clk_gate(priv->reg,
+ "uart2_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_UART2_APB)));
+ clk_dm(JH7110_SYSCLK_UART2_CORE,
+ starfive_clk_gate(priv->reg,
+ "uart2_core", "oscillator",
+ OFFSET(JH7110_SYSCLK_UART2_CORE)));
+ clk_dm(JH7110_SYSCLK_UART3_APB,
+ starfive_clk_gate(priv->reg,
+ "uart3_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_UART3_APB)));
+ clk_dm(JH7110_SYSCLK_UART3_CORE,
+ starfive_clk_gate_divider(priv->reg,
+ "uart3_core", "perh_root",
+ OFFSET(JH7110_SYSCLK_UART3_CORE), 8));
+ clk_dm(JH7110_SYSCLK_UART4_APB,
+ starfive_clk_gate(priv->reg,
+ "uart4_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_UART4_APB)));
+ clk_dm(JH7110_SYSCLK_UART4_CORE,
+ starfive_clk_gate_divider(priv->reg,
+ "uart4_core", "perh_root",
+ OFFSET(JH7110_SYSCLK_UART4_CORE), 8));
+ clk_dm(JH7110_SYSCLK_UART5_APB,
+ starfive_clk_gate(priv->reg,
+ "uart5_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_UART5_APB)));
+ clk_dm(JH7110_SYSCLK_UART5_CORE,
+ starfive_clk_gate_divider(priv->reg,
+ "uart5_core", "perh_root",
+ OFFSET(JH7110_SYSCLK_UART5_CORE), 8));
+ clk_dm(JH7110_SYSCLK_I2C2_APB,
+ starfive_clk_gate(priv->reg,
+ "i2c2_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_I2C2_APB)));
+ clk_dm(JH7110_SYSCLK_I2C5_APB,
+ starfive_clk_gate(priv->reg,
+ "i2c5_apb", "apb0",
+ OFFSET(JH7110_SYSCLK_I2C5_APB)));
+
+ /* enable noc_bus_stg_axi clock */
+ if (!clk_get_by_id(JH7110_SYSCLK_NOC_BUS_STG_AXI, &pclk))
+ clk_enable(pclk);
+
+ return 0;
+}
+
+static int jh7110_aoncrg_init(struct udevice *dev)
+{
+ struct jh7110_clk_priv *priv = dev_get_priv(dev);
+
+ clk_dm(JH7110_AONCLK_OSC_DIV4,
+ starfive_clk_divider(priv->reg,
+ "osc_div4", "oscillator",
+ AONOFFSET(JH7110_AONCLK_OSC_DIV4), 5));
+ clk_dm(JH7110_AONCLK_APB_FUNC,
+ starfive_clk_mux(priv->reg, "apb_func",
+ AONOFFSET(JH7110_AONCLK_APB_FUNC), 1,
+ apb_func_sels, ARRAY_SIZE(apb_func_sels)));
+ clk_dm(JH7110_AONCLK_GMAC0_AHB,
+ starfive_clk_gate(priv->reg,
+ "gmac0_ahb", "stg_axiahb",
+ AONOFFSET(JH7110_AONCLK_GMAC0_AHB)));
+ clk_dm(JH7110_AONCLK_GMAC0_AXI,
+ starfive_clk_gate(priv->reg,
+ "gmac0_axi", "stg_axiahb",
+ AONOFFSET(JH7110_AONCLK_GMAC0_AXI)));
+ clk_dm(JH7110_AONCLK_GMAC0_RMII_RTX,
+ starfive_clk_divider(priv->reg,
+ "gmac0_rmii_rtx", "gmac0-rmii-refin-clock",
+ AONOFFSET(JH7110_AONCLK_GMAC0_RMII_RTX), 5));
+ clk_dm(JH7110_AONCLK_GMAC0_TX,
+ starfive_clk_composite(priv->reg,
+ "gmac0_tx", gmac0_tx_sels,
+ ARRAY_SIZE(gmac0_tx_sels),
+ AONOFFSET(JH7110_AONCLK_GMAC0_TX), 1, 1, 0));
+ clk_dm(JH7110_AONCLK_GMAC0_TX_INV,
+ starfive_clk_inv(priv->reg,
+ "gmac0_tx_inv", "gmac0_tx",
+ AONOFFSET(JH7110_AONCLK_GMAC0_TX_INV)));
+ clk_dm(JH7110_AONCLK_OTPC_APB,
+ starfive_clk_gate(priv->reg,
+ "otpc_apb", "apb_bus",
+ AONOFFSET(JH7110_AONCLK_OTPC_APB)));
+
+ return 0;
+}
+
+static int jh7110_stgcrg_init(struct udevice *dev)
+{
+ struct jh7110_clk_priv *priv = dev_get_priv(dev);
+
+ clk_dm(JH7110_STGCLK_USB_APB,
+ starfive_clk_gate(priv->reg,
+ "usb_apb", "apb_bus",
+ STGOFFSET(JH7110_STGCLK_USB_APB)));
+ clk_dm(JH7110_STGCLK_USB_UTMI_APB,
+ starfive_clk_gate(priv->reg,
+ "usb_utmi_apb", "apb_bus",
+ STGOFFSET(JH7110_STGCLK_USB_UTMI_APB)));
+ clk_dm(JH7110_STGCLK_USB_AXI,
+ starfive_clk_gate(priv->reg,
+ "usb_axi", "stg_axiahb",
+ STGOFFSET(JH7110_STGCLK_USB_AXI)));
+ clk_dm(JH7110_STGCLK_USB_LPM,
+ starfive_clk_gate_divider(priv->reg,
+ "usb_lpm", "oscillator",
+ STGOFFSET(JH7110_STGCLK_USB_LPM), 2));
+ clk_dm(JH7110_STGCLK_USB_STB,
+ starfive_clk_gate_divider(priv->reg,
+ "usb_stb", "oscillator",
+ STGOFFSET(JH7110_STGCLK_USB_STB), 3));
+ clk_dm(JH7110_STGCLK_USB_APP_125,
+ starfive_clk_gate(priv->reg,
+ "usb_app_125", "usb_125m",
+ STGOFFSET(JH7110_STGCLK_USB_APP_125)));
+ clk_dm(JH7110_STGCLK_USB_REFCLK,
+ starfive_clk_divider(priv->reg, "usb_refclk", "oscillator",
+ STGOFFSET(JH7110_STGCLK_USB_REFCLK), 2));
+ clk_dm(JH7110_STGCLK_PCIE0_AXI,
+ starfive_clk_gate(priv->reg,
+ "pcie0_axi", "stg_axiahb",
+ STGOFFSET(JH7110_STGCLK_PCIE0_AXI)));
+ clk_dm(JH7110_STGCLK_PCIE0_APB,
+ starfive_clk_gate(priv->reg,
+ "pcie0_apb", "apb_bus",
+ STGOFFSET(JH7110_STGCLK_PCIE0_APB)));
+ clk_dm(JH7110_STGCLK_PCIE0_TL,
+ starfive_clk_gate(priv->reg,
+ "pcie0_tl", "stg_axiahb",
+ STGOFFSET(JH7110_STGCLK_PCIE0_TL)));
+ clk_dm(JH7110_STGCLK_PCIE1_AXI,
+ starfive_clk_gate(priv->reg,
+ "pcie1_axi", "stg_axiahb",
+ STGOFFSET(JH7110_STGCLK_PCIE1_AXI)));
+ clk_dm(JH7110_STGCLK_PCIE1_APB,
+ starfive_clk_gate(priv->reg,
+ "pcie1_apb", "apb_bus",
+ STGOFFSET(JH7110_STGCLK_PCIE1_APB)));
+ clk_dm(JH7110_STGCLK_PCIE1_TL,
+ starfive_clk_gate(priv->reg,
+ "pcie1_tl", "stg_axiahb",
+ STGOFFSET(JH7110_STGCLK_PCIE1_TL)));
+
+ return 0;
+}
+
+static int jh7110_clk_probe(struct udevice *dev)
+{
+ struct jh7110_clk_priv *priv = dev_get_priv(dev);
+
+ priv->init = (jh1710_init_fn)dev_get_driver_data(dev);
+ priv->reg = (void __iomem *)dev_read_addr_ptr(dev);
+
+ if (priv->init)
+ return priv->init(dev);
+
+ return 0;
+}
+
+static int jh7110_clk_bind(struct udevice *dev)
+{
+ /* The reset driver does not have a device node, so bind it here */
+ return device_bind_driver_to_node(dev, "jh7110_reset", dev->name,
+ dev_ofnode(dev), NULL);
+}
+
+static const struct udevice_id jh7110_clk_of_match[] = {
+ { .compatible = "starfive,jh7110-syscrg",
+ .data = (ulong)&jh7110_syscrg_init
+ },
+ { .compatible = "starfive,jh7110-stgcrg",
+ .data = (ulong)&jh7110_stgcrg_init
+ },
+ { .compatible = "starfive,jh7110-aoncrg",
+ .data = (ulong)&jh7110_aoncrg_init
+ },
+ { }
+};
+
+U_BOOT_DRIVER(jh7110_clk) = {
+ .name = "jh7110_clk",
+ .id = UCLASS_CLK,
+ .of_match = jh7110_clk_of_match,
+ .probe = jh7110_clk_probe,
+ .ops = &ccf_clk_ops,
+ .priv_auto = sizeof(struct jh7110_clk_priv),
+ .bind = jh7110_clk_bind,
+};
diff --git a/drivers/clk/starfive/clk.h b/drivers/clk/starfive/clk.h
new file mode 100644
index 0000000000..4dee12fe89
--- /dev/null
+++ b/drivers/clk/starfive/clk.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2022 Starfive, Inc.
+ * Author: Yanhong Wang <yanhong.wang at starfivetech.com>
+ *
+ */
+
+#ifndef __CLK_STARFIVE_H
+#define __CLK_STARFIVE_H
+
+enum starfive_pll_type {
+ PLL0 = 0,
+ PLL1,
+ PLL2,
+ PLL_MAX = PLL2
+};
+
+struct starfive_pllx_rate {
+ u64 rate;
+ u32 prediv;
+ u32 fbdiv;
+ u32 frac;
+};
+
+struct starfive_pllx_offset {
+ u32 pd;
+ u32 prediv;
+ u32 fbdiv;
+ u32 frac;
+ u32 postdiv1;
+ u32 dacpd;
+ u32 dsmpd;
+ u32 pd_mask;
+ u32 prediv_mask;
+ u32 fbdiv_mask;
+ u32 frac_mask;
+ u32 postdiv1_mask;
+ u32 dacpd_mask;
+ u32 dsmpd_mask;
+};
+
+struct starfive_pllx_clk {
+ enum starfive_pll_type type;
+ const struct starfive_pllx_offset *offset;
+ const struct starfive_pllx_rate *rate_table;
+ int rate_count;
+ int flags;
+};
+
+extern struct starfive_pllx_clk starfive_jh7110_pll0;
+extern struct starfive_pllx_clk starfive_jh7110_pll1;
+extern struct starfive_pllx_clk starfive_jh7110_pll2;
+
+struct clk *starfive_jh7110_pll(const char *name, const char *parent_name,
+ void __iomem *base, void __iomem *sysreg,
+ const struct starfive_pllx_clk *pll_clk);
+#endif
--
2.17.1
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