Message ID | 1573378102-72380-3-git-send-email-zhouyanjie@zoho.com (mailing list archive) |
---|---|
State | Not Applicable |
Delegated to: | Paul Burton |
Headers | show |
Series | [1/2,v3] dt-bindings: clock: Add X1000 bindings. | expand |
Hi, Le dim., nov. 10, 2019 at 17:28, Zhou Yanjie <zhouyanjie@zoho.com> a écrit : > Add support for the clocks provided by the CGU in the Ingenic X1000 > SoC, making use of the cgu code to do the heavy lifting. > > Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> > --- > drivers/clk/ingenic/Kconfig | 10 ++ > drivers/clk/ingenic/Makefile | 1 + > drivers/clk/ingenic/x1000-cgu.c | 274 > ++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 285 insertions(+) > create mode 100644 drivers/clk/ingenic/x1000-cgu.c > > diff --git a/drivers/clk/ingenic/Kconfig b/drivers/clk/ingenic/Kconfig > index 1cb4899..fb7b399 100644 > --- a/drivers/clk/ingenic/Kconfig > +++ b/drivers/clk/ingenic/Kconfig > @@ -45,6 +45,16 @@ config INGENIC_CGU_JZ4780 > > If building for a JZ4780 SoC, you want to say Y here. > > +config INGENIC_CGU_X1000 > + bool "Ingenic X1000 CGU driver" > + default MACH_X1000 > + select INGENIC_CGU_COMMON > + help > + Support the clocks provided by the CGU hardware on Ingenic X1000 > + and compatible SoCs. > + > + If building for a X1000 SoC, you want to say Y here. > + > config INGENIC_TCU_CLK > bool "Ingenic JZ47xx TCU clocks driver" > default MACH_INGENIC > diff --git a/drivers/clk/ingenic/Makefile > b/drivers/clk/ingenic/Makefile > index 097220b..8b1dad9 100644 > --- a/drivers/clk/ingenic/Makefile > +++ b/drivers/clk/ingenic/Makefile > @@ -4,4 +4,5 @@ obj-$(CONFIG_INGENIC_CGU_JZ4740) += jz4740-cgu.o > obj-$(CONFIG_INGENIC_CGU_JZ4725B) += jz4725b-cgu.o > obj-$(CONFIG_INGENIC_CGU_JZ4770) += jz4770-cgu.o > obj-$(CONFIG_INGENIC_CGU_JZ4780) += jz4780-cgu.o > +obj-$(CONFIG_INGENIC_CGU_X1000) += x1000-cgu.o > obj-$(CONFIG_INGENIC_TCU_CLK) += tcu.o > diff --git a/drivers/clk/ingenic/x1000-cgu.c > b/drivers/clk/ingenic/x1000-cgu.c > new file mode 100644 > index 00000000..b22d87b > --- /dev/null > +++ b/drivers/clk/ingenic/x1000-cgu.c > @@ -0,0 +1,274 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * X1000 SoC CGU driver > + * Copyright (c) 2019 Zhou Yanjie <zhouyanjie@zoho.com> > + */ > + > +#include <linux/clk-provider.h> > +#include <linux/delay.h> > +#include <linux/of.h> > +#include <dt-bindings/clock/x1000-cgu.h> > +#include "cgu.h" > +#include "pm.h" > + > +/* CGU register offsets */ > +#define CGU_REG_CPCCR 0x00 > +#define CGU_REG_APLL 0x10 > +#define CGU_REG_MPLL 0x14 > +#define CGU_REG_CLKGR 0x20 > +#define CGU_REG_OPCR 0x24 > +#define CGU_REG_DDRCDR 0x2c > +#define CGU_REG_MACCDR 0x54 > +#define CGU_REG_I2SCDR 0x60 > +#define CGU_REG_LPCDR 0x64 > +#define CGU_REG_MSC0CDR 0x68 > +#define CGU_REG_I2SCDR1 0x70 > +#define CGU_REG_SSICDR 0x74 > +#define CGU_REG_CIMCDR 0x7c > +#define CGU_REG_PCMCDR 0x84 > +#define CGU_REG_MSC1CDR 0xa4 > +#define CGU_REG_CMP_INTR 0xb0 > +#define CGU_REG_CMP_INTRE 0xb4 > +#define CGU_REG_DRCG 0xd0 > +#define CGU_REG_CPCSR 0xd4 > +#define CGU_REG_PCMCDR1 0xe0 > +#define CGU_REG_MACPHYC 0xe8 > + > +/* bits within the OPCR register */ > +#define OPCR_SPENDN0 BIT(7) > +#define OPCR_SPENDN1 BIT(6) > + > +static struct ingenic_cgu *cgu; > + > +static const s8 pll_od_encoding[8] = { > + 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3, > +}; > + > +static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { > + > + /* External clocks */ > + > + [X1000_CLK_EXCLK] = { "ext", CGU_CLK_EXT }, > + [X1000_CLK_RTCLK] = { "rtc", CGU_CLK_EXT }, > + > + /* PLLs */ > + > + [X1000_CLK_APLL] = { > + "apll", CGU_CLK_PLL, > + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, > + .pll = { > + .reg = CGU_REG_APLL, > + .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, > + }, > + }, > + > + [X1000_CLK_MPLL] = { > + "mpll", CGU_CLK_PLL, > + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, > + .pll = { > + .reg = CGU_REG_MPLL, > + .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 = 6, > + .enable_bit = 7, > + .stable_bit = 0, > + }, > + }, > + > + /* Muxes & dividers */ > + > + [X1000_CLK_SCLKA] = { > + "sclk_a", CGU_CLK_MUX, > + .parents = { -1, X1000_CLK_EXCLK, X1000_CLK_APLL, -1 }, > + .mux = { CGU_REG_CPCCR, 30, 2 }, > + }, > + > + [X1000_CLK_CPUMUX] = { > + "cpu_mux", CGU_CLK_MUX, > + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, > + .mux = { CGU_REG_CPCCR, 28, 2 }, > + }, > + > + [X1000_CLK_CPU] = { > + "cpu", CGU_CLK_DIV, > + .parents = { X1000_CLK_CPUMUX, -1, -1, -1 }, > + .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 }, > + }, > + > + [X1000_CLK_L2CACHE] = { > + "l2cache", CGU_CLK_DIV, > + .parents = { X1000_CLK_CPUMUX, -1, -1, -1 }, > + .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 }, > + }, > + > + [X1000_CLK_AHB0] = { > + "ahb0", CGU_CLK_MUX | CGU_CLK_DIV, > + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, > + .mux = { CGU_REG_CPCCR, 26, 2 }, > + .div = { CGU_REG_CPCCR, 8, 1, 4, 21, -1, -1 }, > + }, > + > + [X1000_CLK_AHB2PMUX] = { > + "ahb2_apb_mux", CGU_CLK_MUX, > + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, > + .mux = { CGU_REG_CPCCR, 24, 2 }, > + }, > + > + [X1000_CLK_AHB2] = { > + "ahb2", CGU_CLK_DIV, > + .parents = { X1000_CLK_AHB2PMUX, -1, -1, -1 }, > + .div = { CGU_REG_CPCCR, 12, 1, 4, 20, -1, -1 }, > + }, > + > + [X1000_CLK_PCLK] = { > + "pclk", CGU_CLK_DIV, > + .parents = { X1000_CLK_AHB2PMUX, -1, -1, -1 }, > + .div = { CGU_REG_CPCCR, 16, 1, 4, 20, -1, -1 }, > + }, > + > + [X1000_CLK_DDR] = { > + "ddr", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, > + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, > + .mux = { CGU_REG_DDRCDR, 30, 2 }, > + .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 }, > + .gate = { CGU_REG_CLKGR, 31 }, > + }, > + > + [X1000_CLK_MAC] = { > + "mac", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, > + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL}, > + .mux = { CGU_REG_MACCDR, 31, 1 }, > + .div = { CGU_REG_MACCDR, 0, 1, 8, 29, 28, 27 }, > + .gate = { CGU_REG_CLKGR, 25 }, > + }, > + > + [X1000_CLK_MSCMUX] = { > + "msc_mux", CGU_CLK_MUX, > + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL}, > + .mux = { CGU_REG_MSC0CDR, 31, 1 }, > + }, > + > + [X1000_CLK_MSC0] = { > + "msc0", CGU_CLK_DIV | CGU_CLK_GATE, > + .parents = { X1000_CLK_MSCMUX, -1, -1, -1 }, > + .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 }, > + .gate = { CGU_REG_CLKGR, 4 }, > + }, > + > + [X1000_CLK_MSC1] = { > + "msc1", CGU_CLK_DIV | CGU_CLK_GATE, > + .parents = { X1000_CLK_MSCMUX, -1, -1, -1 }, > + .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 }, > + .gate = { CGU_REG_CLKGR, 5 }, > + }, > + > + [X1000_CLK_SSIPLL] = { > + "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV, > + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL, -1, -1 }, > + .mux = { CGU_REG_SSICDR, 31, 1 }, > + .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 }, > + }, > + > + [X1000_CLK_SSIMUX] = { > + "ssi_mux", CGU_CLK_MUX, > + .parents = { X1000_CLK_EXCLK, X1000_CLK_SSIPLL, -1, -1 }, > + .mux = { CGU_REG_SSICDR, 30, 1 }, > + }, > + > + /* Gate-only clocks */ > + > + [X1000_CLK_SFC] = { > + "sfc", CGU_CLK_GATE, > + .parents = { X1000_CLK_SSIPLL, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 2 }, > + }, > + > + [X1000_CLK_I2C0] = { > + "i2c0", CGU_CLK_GATE, > + .parents = { X1000_CLK_PCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 7 }, > + }, > + > + [X1000_CLK_I2C1] = { > + "i2c1", CGU_CLK_GATE, > + .parents = { X1000_CLK_PCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 8 }, > + }, > + > + [X1000_CLK_I2C2] = { > + "i2c2", CGU_CLK_GATE, > + .parents = { X1000_CLK_PCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 9 }, > + }, > + > + [X1000_CLK_UART0] = { > + "uart0", CGU_CLK_GATE, > + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 14 }, > + }, > + > + [X1000_CLK_UART1] = { > + "uart1", CGU_CLK_GATE, > + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 15 }, > + }, > + > + [X1000_CLK_UART2] = { > + "uart2", CGU_CLK_GATE, > + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 16 }, > + }, > + > + [X1000_CLK_SSI] = { > + "ssi", CGU_CLK_GATE, > + .parents = { X1000_CLK_SSIMUX, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 19 }, > + }, > + > + [X1000_CLK_PDMA] = { > + "pdma", CGU_CLK_GATE, > + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, > + .gate = { CGU_REG_CLKGR, 21 }, > + }, > +}; > + > +static void __init x1000_cgu_init(struct device_node *np) > +{ > + int retval; > + > + cgu = ingenic_cgu_new(x1000_cgu_clocks, > + ARRAY_SIZE(x1000_cgu_clocks), np); > + if (!cgu) { > + pr_err("%s: failed to initialise CGU\n", __func__); > + return; > + } > + > + retval = ingenic_cgu_register_clocks(cgu); > + if (retval) { > + pr_err("%s: failed to register CGU Clocks\n", __func__); > + return; > + } > + > + ingenic_cgu_register_syscore_ops(cgu); > +} > +CLK_OF_DECLARE(x1000_cgu, "ingenic,x1000-cgu", x1000_cgu_init); > -- > 2.7.4 > >
Quoting Zhou Yanjie (2019-11-10 01:28:22) > Add support for the clocks provided by the CGU in the Ingenic X1000 > SoC, making use of the cgu code to do the heavy lifting. > > Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com> > --- Applied to clk-next
diff --git a/drivers/clk/ingenic/Kconfig b/drivers/clk/ingenic/Kconfig index 1cb4899..fb7b399 100644 --- a/drivers/clk/ingenic/Kconfig +++ b/drivers/clk/ingenic/Kconfig @@ -45,6 +45,16 @@ config INGENIC_CGU_JZ4780 If building for a JZ4780 SoC, you want to say Y here. +config INGENIC_CGU_X1000 + bool "Ingenic X1000 CGU driver" + default MACH_X1000 + select INGENIC_CGU_COMMON + help + Support the clocks provided by the CGU hardware on Ingenic X1000 + and compatible SoCs. + + If building for a X1000 SoC, you want to say Y here. + config INGENIC_TCU_CLK bool "Ingenic JZ47xx TCU clocks driver" default MACH_INGENIC diff --git a/drivers/clk/ingenic/Makefile b/drivers/clk/ingenic/Makefile index 097220b..8b1dad9 100644 --- a/drivers/clk/ingenic/Makefile +++ b/drivers/clk/ingenic/Makefile @@ -4,4 +4,5 @@ obj-$(CONFIG_INGENIC_CGU_JZ4740) += jz4740-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4725B) += jz4725b-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4770) += jz4770-cgu.o obj-$(CONFIG_INGENIC_CGU_JZ4780) += jz4780-cgu.o +obj-$(CONFIG_INGENIC_CGU_X1000) += x1000-cgu.o obj-$(CONFIG_INGENIC_TCU_CLK) += tcu.o diff --git a/drivers/clk/ingenic/x1000-cgu.c b/drivers/clk/ingenic/x1000-cgu.c new file mode 100644 index 00000000..b22d87b --- /dev/null +++ b/drivers/clk/ingenic/x1000-cgu.c @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * X1000 SoC CGU driver + * Copyright (c) 2019 Zhou Yanjie <zhouyanjie@zoho.com> + */ + +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/of.h> +#include <dt-bindings/clock/x1000-cgu.h> +#include "cgu.h" +#include "pm.h" + +/* CGU register offsets */ +#define CGU_REG_CPCCR 0x00 +#define CGU_REG_APLL 0x10 +#define CGU_REG_MPLL 0x14 +#define CGU_REG_CLKGR 0x20 +#define CGU_REG_OPCR 0x24 +#define CGU_REG_DDRCDR 0x2c +#define CGU_REG_MACCDR 0x54 +#define CGU_REG_I2SCDR 0x60 +#define CGU_REG_LPCDR 0x64 +#define CGU_REG_MSC0CDR 0x68 +#define CGU_REG_I2SCDR1 0x70 +#define CGU_REG_SSICDR 0x74 +#define CGU_REG_CIMCDR 0x7c +#define CGU_REG_PCMCDR 0x84 +#define CGU_REG_MSC1CDR 0xa4 +#define CGU_REG_CMP_INTR 0xb0 +#define CGU_REG_CMP_INTRE 0xb4 +#define CGU_REG_DRCG 0xd0 +#define CGU_REG_CPCSR 0xd4 +#define CGU_REG_PCMCDR1 0xe0 +#define CGU_REG_MACPHYC 0xe8 + +/* bits within the OPCR register */ +#define OPCR_SPENDN0 BIT(7) +#define OPCR_SPENDN1 BIT(6) + +static struct ingenic_cgu *cgu; + +static const s8 pll_od_encoding[8] = { + 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3, +}; + +static const struct ingenic_cgu_clk_info x1000_cgu_clocks[] = { + + /* External clocks */ + + [X1000_CLK_EXCLK] = { "ext", CGU_CLK_EXT }, + [X1000_CLK_RTCLK] = { "rtc", CGU_CLK_EXT }, + + /* PLLs */ + + [X1000_CLK_APLL] = { + "apll", CGU_CLK_PLL, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .pll = { + .reg = CGU_REG_APLL, + .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, + }, + }, + + [X1000_CLK_MPLL] = { + "mpll", CGU_CLK_PLL, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .pll = { + .reg = CGU_REG_MPLL, + .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 = 6, + .enable_bit = 7, + .stable_bit = 0, + }, + }, + + /* Muxes & dividers */ + + [X1000_CLK_SCLKA] = { + "sclk_a", CGU_CLK_MUX, + .parents = { -1, X1000_CLK_EXCLK, X1000_CLK_APLL, -1 }, + .mux = { CGU_REG_CPCCR, 30, 2 }, + }, + + [X1000_CLK_CPUMUX] = { + "cpu_mux", CGU_CLK_MUX, + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, + .mux = { CGU_REG_CPCCR, 28, 2 }, + }, + + [X1000_CLK_CPU] = { + "cpu", CGU_CLK_DIV, + .parents = { X1000_CLK_CPUMUX, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 }, + }, + + [X1000_CLK_L2CACHE] = { + "l2cache", CGU_CLK_DIV, + .parents = { X1000_CLK_CPUMUX, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 }, + }, + + [X1000_CLK_AHB0] = { + "ahb0", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, + .mux = { CGU_REG_CPCCR, 26, 2 }, + .div = { CGU_REG_CPCCR, 8, 1, 4, 21, -1, -1 }, + }, + + [X1000_CLK_AHB2PMUX] = { + "ahb2_apb_mux", CGU_CLK_MUX, + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, + .mux = { CGU_REG_CPCCR, 24, 2 }, + }, + + [X1000_CLK_AHB2] = { + "ahb2", CGU_CLK_DIV, + .parents = { X1000_CLK_AHB2PMUX, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 12, 1, 4, 20, -1, -1 }, + }, + + [X1000_CLK_PCLK] = { + "pclk", CGU_CLK_DIV, + .parents = { X1000_CLK_AHB2PMUX, -1, -1, -1 }, + .div = { CGU_REG_CPCCR, 16, 1, 4, 20, -1, -1 }, + }, + + [X1000_CLK_DDR] = { + "ddr", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { -1, X1000_CLK_SCLKA, X1000_CLK_MPLL, -1 }, + .mux = { CGU_REG_DDRCDR, 30, 2 }, + .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 31 }, + }, + + [X1000_CLK_MAC] = { + "mac", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL}, + .mux = { CGU_REG_MACCDR, 31, 1 }, + .div = { CGU_REG_MACCDR, 0, 1, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 25 }, + }, + + [X1000_CLK_MSCMUX] = { + "msc_mux", CGU_CLK_MUX, + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL}, + .mux = { CGU_REG_MSC0CDR, 31, 1 }, + }, + + [X1000_CLK_MSC0] = { + "msc0", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { X1000_CLK_MSCMUX, -1, -1, -1 }, + .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 4 }, + }, + + [X1000_CLK_MSC1] = { + "msc1", CGU_CLK_DIV | CGU_CLK_GATE, + .parents = { X1000_CLK_MSCMUX, -1, -1, -1 }, + .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 }, + .gate = { CGU_REG_CLKGR, 5 }, + }, + + [X1000_CLK_SSIPLL] = { + "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV, + .parents = { X1000_CLK_SCLKA, X1000_CLK_MPLL, -1, -1 }, + .mux = { CGU_REG_SSICDR, 31, 1 }, + .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 }, + }, + + [X1000_CLK_SSIMUX] = { + "ssi_mux", CGU_CLK_MUX, + .parents = { X1000_CLK_EXCLK, X1000_CLK_SSIPLL, -1, -1 }, + .mux = { CGU_REG_SSICDR, 30, 1 }, + }, + + /* Gate-only clocks */ + + [X1000_CLK_SFC] = { + "sfc", CGU_CLK_GATE, + .parents = { X1000_CLK_SSIPLL, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 2 }, + }, + + [X1000_CLK_I2C0] = { + "i2c0", CGU_CLK_GATE, + .parents = { X1000_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 7 }, + }, + + [X1000_CLK_I2C1] = { + "i2c1", CGU_CLK_GATE, + .parents = { X1000_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 8 }, + }, + + [X1000_CLK_I2C2] = { + "i2c2", CGU_CLK_GATE, + .parents = { X1000_CLK_PCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 9 }, + }, + + [X1000_CLK_UART0] = { + "uart0", CGU_CLK_GATE, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 14 }, + }, + + [X1000_CLK_UART1] = { + "uart1", CGU_CLK_GATE, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 15 }, + }, + + [X1000_CLK_UART2] = { + "uart2", CGU_CLK_GATE, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 16 }, + }, + + [X1000_CLK_SSI] = { + "ssi", CGU_CLK_GATE, + .parents = { X1000_CLK_SSIMUX, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 19 }, + }, + + [X1000_CLK_PDMA] = { + "pdma", CGU_CLK_GATE, + .parents = { X1000_CLK_EXCLK, -1, -1, -1 }, + .gate = { CGU_REG_CLKGR, 21 }, + }, +}; + +static void __init x1000_cgu_init(struct device_node *np) +{ + int retval; + + cgu = ingenic_cgu_new(x1000_cgu_clocks, + ARRAY_SIZE(x1000_cgu_clocks), np); + if (!cgu) { + pr_err("%s: failed to initialise CGU\n", __func__); + return; + } + + retval = ingenic_cgu_register_clocks(cgu); + if (retval) { + pr_err("%s: failed to register CGU Clocks\n", __func__); + return; + } + + ingenic_cgu_register_syscore_ops(cgu); +} +CLK_OF_DECLARE(x1000_cgu, "ingenic,x1000-cgu", x1000_cgu_init);
Add support for the clocks provided by the CGU in the Ingenic X1000 SoC, making use of the cgu code to do the heavy lifting. Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com> --- drivers/clk/ingenic/Kconfig | 10 ++ drivers/clk/ingenic/Makefile | 1 + drivers/clk/ingenic/x1000-cgu.c | 274 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 285 insertions(+) create mode 100644 drivers/clk/ingenic/x1000-cgu.c