diff options
Diffstat (limited to 'drivers/clk/ingenic')
| -rw-r--r-- | drivers/clk/ingenic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/clk/ingenic/cgu.c | 94 | ||||
| -rw-r--r-- | drivers/clk/ingenic/cgu.h | 4 | ||||
| -rw-r--r-- | drivers/clk/ingenic/jz4770-cgu.c | 483 | ||||
| -rw-r--r-- | drivers/clk/ingenic/jz4780-cgu.c | 2 |
5 files changed, 566 insertions, 18 deletions
diff --git a/drivers/clk/ingenic/Makefile b/drivers/clk/ingenic/Makefile index cd47b0664c2b..1456e4cdb562 100644 --- a/drivers/clk/ingenic/Makefile +++ b/drivers/clk/ingenic/Makefile @@ -1,3 +1,4 @@ obj-y += cgu.o obj-$(CONFIG_MACH_JZ4740) += jz4740-cgu.o +obj-$(CONFIG_MACH_JZ4770) += jz4770-cgu.o obj-$(CONFIG_MACH_JZ4780) += jz4780-cgu.o diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index ab393637f7b0..56a712c9075f 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -100,15 +100,13 @@ ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) n += pll_info->n_offset; od_enc = ctl >> pll_info->od_shift; od_enc &= GENMASK(pll_info->od_bits - 1, 0); - bypass = !!(ctl & BIT(pll_info->bypass_bit)); + bypass = !pll_info->no_bypass_bit && + !!(ctl & BIT(pll_info->bypass_bit)); enable = !!(ctl & BIT(pll_info->enable_bit)); if (bypass) return parent_rate; - if (!enable) - return 0; - for (od = 0; od < pll_info->od_max; od++) { if (pll_info->od_encoding[od] == od_enc) break; @@ -152,17 +150,25 @@ ingenic_pll_calc(const struct ingenic_cgu_clk_info *clk_info, return div_u64((u64)parent_rate * m, n * od); } -static long -ingenic_pll_round_rate(struct clk_hw *hw, unsigned long req_rate, - unsigned long *prate) +static inline const struct ingenic_cgu_clk_info *to_clk_info( + struct ingenic_clk *ingenic_clk) { - struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); struct ingenic_cgu *cgu = ingenic_clk->cgu; const struct ingenic_cgu_clk_info *clk_info; clk_info = &cgu->clock_info[ingenic_clk->idx]; BUG_ON(clk_info->type != CGU_CLK_PLL); + return clk_info; +} + +static long +ingenic_pll_round_rate(struct clk_hw *hw, unsigned long req_rate, + unsigned long *prate) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); + return ingenic_pll_calc(clk_info, req_rate, *prate, NULL, NULL, NULL); } @@ -170,19 +176,14 @@ static int ingenic_pll_set_rate(struct clk_hw *hw, unsigned long req_rate, unsigned long parent_rate) { - const unsigned timeout = 100; struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); struct ingenic_cgu *cgu = ingenic_clk->cgu; - const struct ingenic_cgu_clk_info *clk_info; - const struct ingenic_cgu_pll_info *pll_info; + const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); + const struct ingenic_cgu_pll_info *pll_info = &clk_info->pll; unsigned long rate, flags; - unsigned m, n, od, i; + unsigned int m, n, od; u32 ctl; - clk_info = &cgu->clock_info[ingenic_clk->idx]; - BUG_ON(clk_info->type != CGU_CLK_PLL); - pll_info = &clk_info->pll; - rate = ingenic_pll_calc(clk_info, req_rate, parent_rate, &m, &n, &od); if (rate != req_rate) @@ -201,6 +202,26 @@ ingenic_pll_set_rate(struct clk_hw *hw, unsigned long req_rate, ctl &= ~(GENMASK(pll_info->od_bits - 1, 0) << pll_info->od_shift); ctl |= pll_info->od_encoding[od - 1] << pll_info->od_shift; + writel(ctl, cgu->base + pll_info->reg); + spin_unlock_irqrestore(&cgu->lock, flags); + + return 0; +} + +static int ingenic_pll_enable(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); + const struct ingenic_cgu_pll_info *pll_info = &clk_info->pll; + const unsigned int timeout = 100; + unsigned long flags; + unsigned int i; + u32 ctl; + + spin_lock_irqsave(&cgu->lock, flags); + ctl = readl(cgu->base + pll_info->reg); + ctl &= ~BIT(pll_info->bypass_bit); ctl |= BIT(pll_info->enable_bit); @@ -222,10 +243,48 @@ ingenic_pll_set_rate(struct clk_hw *hw, unsigned long req_rate, return 0; } +static void ingenic_pll_disable(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); + const struct ingenic_cgu_pll_info *pll_info = &clk_info->pll; + unsigned long flags; + u32 ctl; + + spin_lock_irqsave(&cgu->lock, flags); + ctl = readl(cgu->base + pll_info->reg); + + ctl &= ~BIT(pll_info->enable_bit); + + writel(ctl, cgu->base + pll_info->reg); + spin_unlock_irqrestore(&cgu->lock, flags); +} + +static int ingenic_pll_is_enabled(struct clk_hw *hw) +{ + struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw); + struct ingenic_cgu *cgu = ingenic_clk->cgu; + const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk); + const struct ingenic_cgu_pll_info *pll_info = &clk_info->pll; + unsigned long flags; + u32 ctl; + + spin_lock_irqsave(&cgu->lock, flags); + ctl = readl(cgu->base + pll_info->reg); + spin_unlock_irqrestore(&cgu->lock, flags); + + return !!(ctl & BIT(pll_info->enable_bit)); +} + static const struct clk_ops ingenic_pll_ops = { .recalc_rate = ingenic_pll_recalc_rate, .round_rate = ingenic_pll_round_rate, .set_rate = ingenic_pll_set_rate, + + .enable = ingenic_pll_enable, + .disable = ingenic_pll_disable, + .is_enabled = ingenic_pll_is_enabled, }; /* @@ -328,6 +387,8 @@ ingenic_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) div *= clk_info->div.div; rate /= div; + } else if (clk_info->type & CGU_CLK_FIXDIV) { + rate /= clk_info->fixdiv.div; } return rate; @@ -598,6 +659,7 @@ static int ingenic_register_clock(struct ingenic_cgu *cgu, unsigned idx) } } else if (caps & CGU_CLK_PLL) { clk_init.ops = &ingenic_pll_ops; + clk_init.flags |= CLK_SET_RATE_GATE; caps &= ~CGU_CLK_PLL; diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h index e78b586536ea..9da34910bd80 100644 --- a/drivers/clk/ingenic/cgu.h +++ b/drivers/clk/ingenic/cgu.h @@ -48,6 +48,7 @@ * @bypass_bit: the index of the bypass bit in the PLL control register * @enable_bit: the index of the enable bit in the PLL control register * @stable_bit: the index of the stable bit in the PLL control register + * @no_bypass_bit: if set, the PLL has no bypass functionality */ struct ingenic_cgu_pll_info { unsigned reg; @@ -58,6 +59,7 @@ struct ingenic_cgu_pll_info { u8 bypass_bit; u8 enable_bit; u8 stable_bit; + bool no_bypass_bit; }; /** @@ -120,7 +122,7 @@ struct ingenic_cgu_gate_info { * @clk_ops: custom clock operation callbacks */ struct ingenic_cgu_custom_info { - struct clk_ops *clk_ops; + const struct clk_ops *clk_ops; }; /** diff --git a/drivers/clk/ingenic/jz4770-cgu.c b/drivers/clk/ingenic/jz4770-cgu.c new file mode 100644 index 000000000000..c78d369b9403 --- /dev/null +++ b/drivers/clk/ingenic/jz4770-cgu.c @@ -0,0 +1,483 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * JZ4770 SoC CGU driver + * Copyright 2018, Paul Cercueil <paul@crapouillou.net> + */ + +#include <linux/bitops.h> +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/of.h> +#include <linux/syscore_ops.h> +#include <dt-bindings/clock/jz4770-cgu.h> +#include "cgu.h" + +/* + * CPM registers offset address definition + */ +#define CGU_REG_CPCCR 0x00 +#define CGU_REG_LCR 0x04 +#define CGU_REG_CPPCR0 0x10 +#define CGU_REG_CLKGR0 0x20 +#define CGU_REG_OPCR 0x24 +#define CGU_REG_CLKGR1 0x28 +#define CGU_REG_CPPCR1 0x30 +#define CGU_REG_USBPCR1 0x48 +#define CGU_REG_USBCDR 0x50 +#define CGU_REG_I2SCDR 0x60 +#define CGU_REG_LPCDR 0x64 +#define CGU_REG_MSC0CDR 0x68 +#define CGU_REG_UHCCDR 0x6c +#define CGU_REG_SSICDR 0x74 +#define CGU_REG_CIMCDR 0x7c +#define CGU_REG_GPSCDR 0x80 +#define CGU_REG_PCMCDR 0x84 +#define CGU_REG_GPUCDR 0x88 +#define CGU_REG_MSC1CDR 0xA4 +#define CGU_REG_MSC2CDR 0xA8 +#define CGU_REG_BCHCDR 0xAC + +/* bits within the LCR register */ +#define LCR_LPM BIT(0) /* Low Power Mode */ + +/* bits within the OPCR register */ +#define OPCR_SPENDH BIT(5) /* UHC PHY suspend */ +#define OPCR_SPENDN BIT(7) /* OTG PHY suspend */ + +/* bits within the USBPCR1 register */ +#define USBPCR1_UHC_POWER BIT(5) /* UHC PHY power down */ + +static struct ingenic_cgu *cgu; + +static int jz4770_uhc_phy_enable(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1; + + writel(readl(reg_opcr) & ~OPCR_SPENDH, reg_opcr); + writel(readl(reg_usbpcr1) | USBPCR1_UHC_POWER, reg_usbpcr1); + return 0; +} + +static void jz4770_uhc_phy_disable(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1; + + writel(readl(reg_usbpcr1) & ~USBPCR1_UHC_POWER, reg_usbpcr1); + writel(readl(reg_opcr) | OPCR_SPENDH, reg_opcr); +} + +static int jz4770_uhc_phy_is_enabled(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + void __iomem *reg_usbpcr1 = cgu->base + CGU_REG_USBPCR1; + + return !(readl(reg_opcr) & OPCR_SPENDH) && + (readl(reg_usbpcr1) & USBPCR1_UHC_POWER); +} + +static const struct clk_ops jz4770_uhc_phy_ops = { + .enable = jz4770_uhc_phy_enable, + .disable = jz4770_uhc_phy_disable, + .is_enabled = jz4770_uhc_phy_is_enabled, +}; + +static int jz4770_otg_phy_enable(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + + writel(readl(reg_opcr) | OPCR_SPENDN, reg_opcr); + + /* Wait for the clock to be stable */ + udelay(50); + return 0; +} + +static void jz4770_otg_phy_disable(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + + writel(readl(reg_opcr) & ~OPCR_SPENDN, reg_opcr); +} + +static int jz4770_otg_phy_is_enabled(struct clk_hw *hw) +{ + void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR; + + return !!(readl(reg_opcr) & OPCR_SPENDN); +} + +static const struct clk_ops jz4770_otg_phy_ops = { + .enable = jz4770_otg_phy_enable, + .disable = jz4770_otg_phy_disable, + .is_enabled = jz4770_otg_phy_is_enabled, +}; + +static const s8 pll_od_encoding[8] = { + 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3, +}; + +static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { + + /* External clocks */ + + [JZ4770_CLK_EXT] = { "ext", CGU_CLK_EXT }, + [JZ4770_CLK_OSC32K] = { "osc32k", CGU_CLK_EXT }, + + /* PLLs */ + + [JZ4770_CLK_PLL0] = { + "pll0", CGU_CLK_PLL, + .parents = { JZ4770_CLK_EXT }, + .pll = { + .reg = CGU_REG_CPPCR0, + .m_shift = 24, + .m_bits = 7, + .m_offset = 1, + .n_shift = 18, + .n_bits = 5, + .n_offset = 1, + .od_shift = 16, + .od_bits = 2, + .od_max = 8, + .od_encoding = pll_od_encoding, + .bypass_bit = 9, + .enable_bit = 8, + .stable_bit = 10, + }, + }, + + [JZ4770_CLK_PLL1] = { + /* TODO: PLL1 can depend on PLL0 */ + "pll1", CGU_CLK_PLL, + .parents = { JZ4770_CLK_EXT }, + .pll = { + .reg = CGU_REG_CPPCR1, + .m_shift = 24, + .m_bits = 7, + .m_offset = 1, + .n_shift = 18, + .n_bits = 5, + .n_offset = 1, + .od_shift = 16, + .od_bits = 2, + .od_max = 8, + .od_encoding = pll_od_encoding, + .enable_bit = 7, + .stable_bit = 6, + .no_bypass_bit = true, + }, + }, + + /* Main clocks */ + + [JZ4770_CLK_CCLK] = { + "cclk", CGU_CLK_DIV, + .parents = { JZ4770_CLK_PLL0, }, + .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 }, + }, + [JZ4770_CLK_H0CLK] = { + "h0clk", CGU_CLK_DIV, + .parents = { JZ4770_CLK_PLL0, }, + .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 }, + }, + [JZ4770_CLK_H1CLK] = { + "h1clk", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { JZ4770_CLK_PLL0, }, + .div = { CGU_REG_CPCCR, 24, 1, 4, 22, -1, -1 }, + .gate = { CGU_REG_LCR, 30 }, + }, + [JZ4770_CLK_H2CLK] = { + "h2clk", CGU_CLK_DIV, + .parents = { JZ4770_CLK_PLL0, }, + .div = { CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1 }, + }, + [JZ4770_CLK_C1CLK] = { + "c1clk", CGU_CLK_DIV, + .parents = { JZ4770_CLK_PLL0, }, + .div = { CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1 }, + }, + [JZ4770_CLK_PCLK] = { + "pclk", CGU_CLK_DIV, + .parents = { JZ4770_CLK_PLL0, }, + .div = { CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1 }, + }, + + /* Those divided clocks can connect to PLL0 or PLL1 */ + + [JZ4770_CLK_MMC0_MUX] = { + "mmc0_mux", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_MSC0CDR, 30, 1 }, + .div = { CGU_REG_MSC0CDR, 0, 1, 7, -1, -1, 31 }, + .gate = { CGU_REG_MSC0CDR, 31 }, + }, + [JZ4770_CLK_MMC1_MUX] = { + "mmc1_mux", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_MSC1CDR, 30, 1 }, + .div = { CGU_REG_MSC1CDR, 0, 1, 7, -1, -1, 31 }, + .gate = { CGU_REG_MSC1CDR, 31 }, + }, + [JZ4770_CLK_MMC2_MUX] = { + "mmc2_mux", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_MSC2CDR, 30, 1 }, + .div = { CGU_REG_MSC2CDR, 0, 1, 7, -1, -1, 31 }, + .gate = { CGU_REG_MSC2CDR, 31 }, + }, + [JZ4770_CLK_CIM] = { + "cim", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_CIMCDR, 31, 1 }, + .div = { CGU_REG_CIMCDR, 0, 1, 8, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 26 }, + }, + [JZ4770_CLK_UHC] = { + "uhc", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_UHCCDR, 29, 1 }, + .div = { CGU_REG_UHCCDR, 0, 1, 4, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 24 }, + }, + [JZ4770_CLK_GPU] = { + "gpu", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, -1 }, + .mux = { CGU_REG_GPUCDR, 31, 1 }, + .div = { CGU_REG_GPUCDR, 0, 1, 3, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 9 }, + }, + [JZ4770_CLK_BCH] = { + "bch", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_BCHCDR, 31, 1 }, + .div = { CGU_REG_BCHCDR, 0, 1, 3, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 1 }, + }, + [JZ4770_CLK_LPCLK_MUX] = { + "lpclk", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_LPCDR, 29, 1 }, + .div = { CGU_REG_LPCDR, 0, 1, 11, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 28 }, + }, + [JZ4770_CLK_GPS] = { + "gps", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_PLL0, JZ4770_CLK_PLL1, }, + .mux = { CGU_REG_GPSCDR, 31, 1 }, + .div = { CGU_REG_GPSCDR, 0, 1, 4, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 22 }, + }, + + /* Those divided clocks can connect to EXT, PLL0 or PLL1 */ + + [JZ4770_CLK_SSI_MUX] = { + "ssi_mux", CGU_CLK_DIV | CGU_CLK_MUX, + .parents = { JZ4770_CLK_EXT, -1, + JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 }, + .mux = { CGU_REG_SSICDR, 30, 2 }, + .div = { CGU_REG_SSICDR, 0, 1, 6, -1, -1, -1 }, + }, + [JZ4770_CLK_PCM_MUX] = { + "pcm_mux", CGU_CLK_DIV | CGU_CLK_MUX, + .parents = { JZ4770_CLK_EXT, -1, + JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 }, + .mux = { CGU_REG_PCMCDR, 30, 2 }, + .div = { CGU_REG_PCMCDR, 0, 1, 9, -1, -1, -1 }, + }, + [JZ4770_CLK_I2S] = { + "i2s", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_EXT, -1, + JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 }, + .mux = { CGU_REG_I2SCDR, 30, 2 }, + .div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR1, 13 }, + }, + [JZ4770_CLK_OTG] = { + "usb", CGU_CLK_DIV | CGU_CLK_GATE | CGU_CLK_MUX, + .parents = { JZ4770_CLK_EXT, -1, + JZ4770_CLK_PLL0, JZ4770_CLK_PLL1 }, + .mux = { CGU_REG_USBCDR, 30, 2 }, + .div = { CGU_REG_USBCDR, 0, 1, 8, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR0, 2 }, + }, + + /* Gate-only clocks */ + + [JZ4770_CLK_SSI0] = { + "ssi0", CGU_CLK_GATE, + .parents = { JZ4770_CLK_SSI_MUX, }, + .gate = { CGU_REG_CLKGR0, 4 }, + }, + [JZ4770_CLK_SSI1] = { + "ssi1", CGU_CLK_GATE, + .parents = { JZ4770_CLK_SSI_MUX, }, + .gate = { CGU_REG_CLKGR0, 19 }, + }, + [JZ4770_CLK_SSI2] = { + "ssi2", CGU_CLK_GATE, + .parents = { JZ4770_CLK_SSI_MUX, }, + .gate = { CGU_REG_CLKGR0, 20 }, + }, + [JZ4770_CLK_PCM0] = { + "pcm0", CGU_CLK_GATE, + .parents = { JZ4770_CLK_PCM_MUX, }, + .gate = { CGU_REG_CLKGR1, 8 }, + }, + [JZ4770_CLK_PCM1] = { + "pcm1", CGU_CLK_GATE, + .parents = { JZ4770_CLK_PCM_MUX, }, + .gate = { CGU_REG_CLKGR1, 10 }, + }, + [JZ4770_CLK_DMA] = { + "dma", CGU_CLK_GATE, + .parents = { JZ4770_CLK_H2CLK, }, + .gate = { CGU_REG_CLKGR0, 21 }, + }, + [JZ4770_CLK_I2C0] = { + "i2c0", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 5 }, + }, + [JZ4770_CLK_I2C1] = { + "i2c1", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 6 }, + }, + [JZ4770_CLK_I2C2] = { + "i2c2", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR1, 15 }, + }, + [JZ4770_CLK_UART0] = { + "uart0", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 15 }, + }, + [JZ4770_CLK_UART1] = { + "uart1", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 16 }, + }, + [JZ4770_CLK_UART2] = { + "uart2", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 17 }, + }, + [JZ4770_CLK_UART3] = { + "uart3", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 18 }, + }, + [JZ4770_CLK_IPU] = { + "ipu", CGU_CLK_GATE, + .parents = { JZ4770_CLK_H0CLK, }, + .gate = { CGU_REG_CLKGR0, 29 }, + }, + [JZ4770_CLK_ADC] = { + "adc", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 14 }, + }, + [JZ4770_CLK_AIC] = { + "aic", CGU_CLK_GATE, + .parents = { JZ4770_CLK_EXT, }, + .gate = { CGU_REG_CLKGR0, 8 }, + }, + [JZ4770_CLK_AUX] = { + "aux", CGU_CLK_GATE, + .parents = { JZ4770_CLK_C1CLK, }, + .gate = { CGU_REG_CLKGR1, 14 }, + }, + [JZ4770_CLK_VPU] = { + "vpu", CGU_CLK_GATE, + .parents = { JZ4770_CLK_H1CLK, }, + .gate = { CGU_REG_CLKGR1, 7 }, + }, + [JZ4770_CLK_MMC0] = { + "mmc0", CGU_CLK_GATE, + .parents = { JZ4770_CLK_MMC0_MUX, }, + .gate = { CGU_REG_CLKGR0, 3 }, + }, + [JZ4770_CLK_MMC1] = { + "mmc1", CGU_CLK_GATE, + .parents = { JZ4770_CLK_MMC1_MUX, }, + .gate = { CGU_REG_CLKGR0, 11 }, + }, + [JZ4770_CLK_MMC2] = { + "mmc2", CGU_CLK_GATE, + .parents = { JZ4770_CLK_MMC2_MUX, }, + .gate = { CGU_REG_CLKGR0, 12 }, + }, + + /* Custom clocks */ + + [JZ4770_CLK_UHC_PHY] = { + "uhc_phy", CGU_CLK_CUSTOM, + .parents = { JZ4770_CLK_UHC, -1, -1, -1 }, + .custom = { &jz4770_uhc_phy_ops }, + }, + [JZ4770_CLK_OTG_PHY] = { + "usb_phy", CGU_CLK_CUSTOM, + .parents = { JZ4770_CLK_OTG, -1, -1, -1 }, + .custom = { &jz4770_otg_phy_ops }, + }, + + [JZ4770_CLK_EXT512] = { + "ext/512", CGU_CLK_FIXDIV, + .parents = { JZ4770_CLK_EXT }, + .fixdiv = { 512 }, + }, + + [JZ4770_CLK_RTC] = { + "rtc", CGU_CLK_MUX, + .parents = { JZ4770_CLK_EXT512, JZ4770_CLK_OSC32K, }, + .mux = { CGU_REG_OPCR, 2, 1}, + }, +}; + +#if IS_ENABLED(CONFIG_PM_SLEEP) +static int jz4770_cgu_pm_suspend(void) +{ + u32 val; + + val = readl(cgu->base + CGU_REG_LCR); + writel(val | LCR_LPM, cgu->base + CGU_REG_LCR); + return 0; +} + +static void jz4770_cgu_pm_resume(void) +{ + u32 val; + + val = readl(cgu->base + CGU_REG_LCR); + writel(val & ~LCR_LPM, cgu->base + CGU_REG_LCR); +} + +static struct syscore_ops jz4770_cgu_pm_ops = { + .suspend = jz4770_cgu_pm_suspend, + .resume = jz4770_cgu_pm_resume, +}; +#endif /* CONFIG_PM_SLEEP */ + +static void __init jz4770_cgu_init(struct device_node *np) +{ + int retval; + + cgu = ingenic_cgu_new(jz4770_cgu_clocks, + ARRAY_SIZE(jz4770_cgu_clocks), np); + if (!cgu) + pr_err("%s: failed to initialise CGU\n", __func__); + + retval = ingenic_cgu_register_clocks(cgu); + if (retval) + pr_err("%s: failed to register CGU Clocks\n", __func__); + +#if IS_ENABLED(CONFIG_PM_SLEEP) + register_syscore_ops(&jz4770_cgu_pm_ops); +#endif +} + +/* We only probe via devicetree, no need for a platform driver */ +CLK_OF_DECLARE(jz4770_cgu, "ingenic,jz4770-cgu", jz4770_cgu_init); diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c index ac3585ed8228..6427be117ff1 100644 --- a/drivers/clk/ingenic/jz4780-cgu.c +++ b/drivers/clk/ingenic/jz4780-cgu.c @@ -203,7 +203,7 @@ static int jz4780_otg_phy_set_rate(struct clk_hw *hw, unsigned long req_rate, return 0; } -static struct clk_ops jz4780_otg_phy_ops = { +static const struct clk_ops jz4780_otg_phy_ops = { .get_parent = jz4780_otg_phy_get_parent, .set_parent = jz4780_otg_phy_set_parent, |