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Subject[PATCH v5 11/11] clk: Ingenic: Add CGU driver for X2000.
Date
Add support for the clocks provided by the CGU in the Ingenic X2000
SoC, making use of the cgu code to do the heavy lifting.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
---

Notes:
v5:
New patch.

drivers/clk/ingenic/Kconfig | 10 +
drivers/clk/ingenic/Makefile | 1 +
drivers/clk/ingenic/x2000-cgu.c | 783 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 794 insertions(+)
create mode 100644 drivers/clk/ingenic/x2000-cgu.c

diff --git a/drivers/clk/ingenic/Kconfig b/drivers/clk/ingenic/Kconfig
index 7fda7bb..f5dd2f2 100644
--- a/drivers/clk/ingenic/Kconfig
+++ b/drivers/clk/ingenic/Kconfig
@@ -85,6 +85,16 @@ config INGENIC_CGU_X1830

If building for a X1830 SoC, you want to say Y here.

+config INGENIC_CGU_X2000
+ bool "Ingenic X2000 CGU driver"
+ default MACH_X2000
+ select INGENIC_CGU_COMMON
+ help
+ Support the clocks provided by the CGU hardware on Ingenic X2000
+ and compatible SoCs.
+
+ If building for a X2000 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 aed8da4..de265ae 100644
--- a/drivers/clk/ingenic/Makefile
+++ b/drivers/clk/ingenic/Makefile
@@ -8,4 +8,5 @@ obj-$(CONFIG_INGENIC_CGU_JZ4775) += jz4775-cgu.o
obj-$(CONFIG_INGENIC_CGU_JZ4780) += jz4780-cgu.o
obj-$(CONFIG_INGENIC_CGU_X1000) += x1000-cgu.o
obj-$(CONFIG_INGENIC_CGU_X1830) += x1830-cgu.o
+obj-$(CONFIG_INGENIC_CGU_X2000) += x2000-cgu.o
obj-$(CONFIG_INGENIC_TCU_CLK) += tcu.o
diff --git a/drivers/clk/ingenic/x2000-cgu.c b/drivers/clk/ingenic/x2000-cgu.c
new file mode 100644
index 00000000..21c02a6
--- /dev/null
+++ b/drivers/clk/ingenic/x2000-cgu.c
@@ -0,0 +1,783 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * X2000 SoC CGU driver
+ * Copyright (C) 2020 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include <dt-bindings/clock/x2000-cgu.h>
+
+#include "cgu.h"
+#include "pm.h"
+
+/* CGU register offsets */
+#define CGU_REG_CPCCR 0x00
+#define CGU_REG_LCR 0x04
+#define CGU_REG_CPPCR 0x0c
+#define CGU_REG_CPAPCR 0x10
+#define CGU_REG_CPMPCR 0x14
+#define CGU_REG_CPEPCR 0x18
+#define CGU_REG_CLKGR0 0x20
+#define CGU_REG_OPCR 0x24
+#define CGU_REG_CLKGR1 0x28
+#define CGU_REG_DDRCDR 0x2c
+#define CGU_REG_ISPCDR 0x30
+#define CGU_REG_CPSPR 0x34
+#define CGU_REG_CPSPPR 0x38
+#define CGU_REG_USBPCR 0x3c
+#define CGU_REG_USBRDT 0x40
+#define CGU_REG_USBVBFIL 0x44
+#define CGU_REG_USBPCR1 0x48
+#define CGU_REG_MACPTPCDR 0x4c
+#define CGU_REG_RSACDR 0x50
+#define CGU_REG_MACCDR 0x54
+#define CGU_REG_MAC0TXCDR 0x58
+#define CGU_REG_SSICDR 0x5c
+#define CGU_REG_I2S0CDR 0x60
+#define CGU_REG_LPCDR 0x64
+#define CGU_REG_MSC0CDR 0x68
+#define CGU_REG_PWMCDR 0x6c
+#define CGU_REG_I2S0CDR1 0x70
+#define CGU_REG_SFCCDR 0x74
+#define CGU_REG_CIMCDR 0x78
+#define CGU_REG_I2S1CDR 0x7c
+#define CGU_REG_I2S1CDR1 0x80
+#define CGU_REG_I2S2CDR 0x84
+#define CGU_REG_I2S2CDR1 0x88
+#define CGU_REG_I2S3CDR 0x8c
+#define CGU_REG_PSWC0ST 0x90
+#define CGU_REG_PSWC1ST 0x94
+#define CGU_REG_PSWC2ST 0x98
+#define CGU_REG_PSWC3ST 0x9c
+#define CGU_REG_I2S3CDR1 0xa0
+#define CGU_REG_MSC1CDR 0xa4
+#define CGU_REG_MSC2CDR 0xa8
+#define CGU_REG_AUDIOCR 0xac
+#define CGU_REG_CMP_INTR 0xb0
+#define CGU_REG_CMP_INTRE 0xb4
+#define CGU_REG_CMP_SFTINT 0xbc
+#define CGU_REG_SRBC 0xc4
+#define CGU_REG_SLBC 0xc8
+#define CGU_REG_SLPC 0xcc
+#define CGU_REG_DRCG 0xd0
+#define CGU_REG_CPCSR 0xd4
+#define CGU_REG_MAC1TXCDR 0xdc
+#define CGU_REG_MAC0PHYC 0xe4
+#define CGU_REG_MAC1PHYC 0xe8
+#define CGU_REG_MESTSEL 0xec
+#define CGU_REG_MEMPD0 0xf8
+#define CGU_REG_MEMPD1 0xfc
+
+/* bits within the OPCR register */
+#define OPCR_GATE_USBPHYCLK BIT(23)
+#define OPCR_SPENDN BIT(7)
+
+/* bits within the I2SCDR register */
+#define I2SCDR_I2PCS_SHIFT 30
+#define I2SCDR_I2PCS_MASK (0x1 << I2SCDR_I2PCS_SHIFT)
+#define I2SCDR_I2SDIV_M_SHIFT 20
+#define I2SCDR_I2SDIV_M_MASK (0x1ff << I2SCDR_I2SDIV_M_SHIFT)
+#define I2SCDR_I2SDIV_N_SHIFT 0
+#define I2SCDR_I2SDIV_N_MASK (0xfffff << I2SCDR_I2SDIV_N_SHIFT)
+#define I2SCDR_CE_I2S BIT(29)
+
+/* bits within the CLKGR1 register */
+#define CLKGR1_I2S0 BIT(8)
+#define CLKGR1_I2S1 BIT(9)
+#define CLKGR1_I2S2 BIT(10)
+#define CLKGR1_I2S3 BIT(11)
+
+static struct ingenic_cgu *cgu;
+
+static void x2000_i2s_calc_m_n(const struct ingenic_cgu_pll_info *pll_info,
+ unsigned long rate, unsigned long parent_rate,
+ unsigned int *pm, unsigned int *pn, unsigned int *pod)
+{
+ unsigned int delta, m, n;
+ u64 curr_delta, curr_m, curr_n;
+
+ if ((parent_rate % rate == 0) && ((parent_rate / rate) > 1)) {
+ m = 1;
+ n = parent_rate / rate;
+ goto out;
+ }
+
+ delta = rate;
+
+ /*
+ * The length of M is 9 bits, its value must be between 1 and 511.
+ * The length of N is 20 bits, its value must be between 2 and 1048575,
+ * and must not be less than 2 times of the value of M.
+ */
+ for (curr_m = 511; curr_m >= 1; curr_m--) {
+ curr_n = parent_rate * curr_m;
+ curr_delta = do_div(curr_n, rate);
+
+ if (curr_n < 2 * curr_m || curr_n > 1048575)
+ continue;
+
+ if (curr_delta == 0)
+ break;
+
+ if (curr_delta < delta) {
+ m = curr_m;
+ n = curr_n;
+ delta = curr_delta;
+ }
+ }
+
+out:
+ *pm = m;
+ *pn = n;
+
+ /*
+ * The I2S PLL does not have OD bits, so set the *pod to 1 to ensure
+ * that the ingenic_pll_calc() in cgu.c can run properly.
+ */
+ *pod = 1;
+}
+
+static int x2000_usb_phy_enable(struct clk_hw *hw)
+{
+ void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
+
+ writel((readl(reg_opcr) | OPCR_SPENDN) & ~OPCR_GATE_USBPHYCLK, reg_opcr);
+
+ return 0;
+}
+
+static void x2000_usb_phy_disable(struct clk_hw *hw)
+{
+ void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
+
+ writel((readl(reg_opcr) & ~OPCR_SPENDN) | OPCR_GATE_USBPHYCLK, reg_opcr);
+}
+
+static int x2000_usb_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 x2000_otg_phy_ops = {
+ .enable = x2000_usb_phy_enable,
+ .disable = x2000_usb_phy_disable,
+ .is_enabled = x2000_usb_phy_is_enabled,
+};
+
+static const s8 pll_od_encoding[64] = {
+ -1, 0x1, -1, 0x2, -1, -1, -1, 0x3,
+ -1, -1, -1, -1, -1, -1, -1, 0x4,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, 0x5,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, 0x6,
+};
+
+static const struct ingenic_cgu_clk_info x2000_cgu_clocks[] = {
+
+ /* External clocks */
+
+ [X2000_CLK_EXCLK] = { "ext", CGU_CLK_EXT },
+ [X2000_CLK_RTCLK] = { "rtc", CGU_CLK_EXT },
+
+ /* PLLs */
+
+ [X2000_CLK_APLL] = {
+ "apll", CGU_CLK_PLL,
+ .parents = { X2000_CLK_EXCLK, -1, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_CPAPCR,
+ .rate_multiplier = 2,
+ .m_shift = 20,
+ .m_bits = 9,
+ .m_offset = 1,
+ .n_shift = 14,
+ .n_bits = 6,
+ .n_offset = 1,
+ .od_shift = 11,
+ .od_bits = 3,
+ .od_max = 64,
+ .od_encoding = pll_od_encoding,
+ .bypass_reg = CGU_REG_CPPCR,
+ .bypass_bit = 30,
+ .enable_bit = 0,
+ .stable_bit = 3,
+ },
+ },
+
+ [X2000_CLK_MPLL] = {
+ "mpll", CGU_CLK_PLL,
+ .parents = { X2000_CLK_EXCLK, -1, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_CPMPCR,
+ .rate_multiplier = 2,
+ .m_shift = 20,
+ .m_bits = 10,
+ .m_offset = 1,
+ .n_shift = 14,
+ .n_bits = 6,
+ .n_offset = 1,
+ .od_shift = 11,
+ .od_bits = 3,
+ .od_max = 64,
+ .od_encoding = pll_od_encoding,
+ .bypass_reg = CGU_REG_CPPCR,
+ .bypass_bit = 28,
+ .enable_bit = 0,
+ .stable_bit = 3,
+ },
+ },
+
+ [X2000_CLK_EPLL] = {
+ "epll", CGU_CLK_PLL,
+ .parents = { X2000_CLK_EXCLK, -1, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_CPEPCR,
+ .rate_multiplier = 2,
+ .m_shift = 20,
+ .m_bits = 10,
+ .m_offset = 1,
+ .n_shift = 14,
+ .n_bits = 6,
+ .n_offset = 1,
+ .od_shift = 11,
+ .od_bits = 3,
+ .od_max = 64,
+ .od_encoding = pll_od_encoding,
+ .bypass_reg = CGU_REG_CPPCR,
+ .bypass_bit = 26,
+ .enable_bit = 0,
+ .stable_bit = 3,
+ },
+ },
+
+ [X2000_CLK_I2S0] = {
+ "i2s0", CGU_CLK_PLL,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_EPLL, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_I2S0CDR,
+ .rate_multiplier = 1,
+ .mux_shift = 30,
+ .mux_bits = 1,
+ .m_shift = 20,
+ .m_bits = 9,
+ .m_offset = 0,
+ .n_shift = 0,
+ .n_bits = 20,
+ .n_offset = 0,
+ .bypass_bit = -1,
+ .enable_bit = 29,
+ .stable_bit = -1,
+ .calc_m_n_od = x2000_i2s_calc_m_n,
+ },
+ },
+
+ [X2000_CLK_I2S1] = {
+ "i2s1", CGU_CLK_PLL,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_EPLL, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_I2S1CDR,
+ .rate_multiplier = 1,
+ .mux_shift = 30,
+ .mux_bits = 1,
+ .m_shift = 20,
+ .m_bits = 9,
+ .m_offset = 0,
+ .n_shift = 0,
+ .n_bits = 20,
+ .n_offset = 0,
+ .bypass_bit = -1,
+ .enable_bit = 29,
+ .stable_bit = -1,
+ .calc_m_n_od = x2000_i2s_calc_m_n,
+ },
+ },
+
+ [X2000_CLK_I2S2] = {
+ "i2s2", CGU_CLK_PLL,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_EPLL, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_I2S2CDR,
+ .rate_multiplier = 1,
+ .mux_shift = 30,
+ .mux_bits = 1,
+ .m_shift = 20,
+ .m_bits = 9,
+ .m_offset = 0,
+ .n_shift = 0,
+ .n_bits = 20,
+ .n_offset = 0,
+ .bypass_bit = -1,
+ .enable_bit = 29,
+ .stable_bit = -1,
+ .calc_m_n_od = x2000_i2s_calc_m_n,
+ },
+ },
+
+ [X2000_CLK_I2S3] = {
+ "i2s3", CGU_CLK_PLL,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_EPLL, -1, -1 },
+ .pll = {
+ .reg = CGU_REG_I2S3CDR,
+ .rate_multiplier = 1,
+ .mux_shift = 30,
+ .mux_bits = 1,
+ .m_shift = 20,
+ .m_bits = 9,
+ .m_offset = 0,
+ .n_shift = 0,
+ .n_bits = 20,
+ .n_offset = 0,
+ .bypass_bit = -1,
+ .enable_bit = 29,
+ .stable_bit = -1,
+ .calc_m_n_od = x2000_i2s_calc_m_n,
+ },
+ },
+
+ /* Custom (SoC-specific) OTG PHY */
+
+ [X2000_CLK_OTGPHY] = {
+ "otg_phy", CGU_CLK_CUSTOM,
+ .parents = { X2000_CLK_EXCLK, -1, -1, -1 },
+ .custom = { &x2000_otg_phy_ops },
+ },
+
+ /* Muxes & dividers */
+
+ [X2000_CLK_SCLKA] = {
+ "sclk_a", CGU_CLK_MUX,
+ .parents = { -1, X2000_CLK_EXCLK, X2000_CLK_APLL, -1 },
+ .mux = { CGU_REG_CPCCR, 30, 2 },
+ },
+
+ [X2000_CLK_CPUMUX] = {
+ "cpu_mux", CGU_CLK_MUX,
+ .parents = { -1, X2000_CLK_SCLKA, X2000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_CPCCR, 28, 2 },
+ },
+
+ [X2000_CLK_CPU] = {
+ "cpu", CGU_CLK_DIV,
+ .parents = { X2000_CLK_CPUMUX },
+ .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 },
+ },
+
+ [X2000_CLK_L2CACHE] = {
+ "l2cache", CGU_CLK_DIV,
+ .parents = { X2000_CLK_CPUMUX },
+ .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 },
+ },
+
+ [X2000_CLK_AHB0] = {
+ "ahb0", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { -1, X2000_CLK_SCLKA, X2000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_CPCCR, 26, 2 },
+ .div = { CGU_REG_CPCCR, 8, 1, 4, 21, -1, -1 },
+ .gate = { CGU_REG_CLKGR0, 29 },
+ },
+
+ [X2000_CLK_AHB2PMUX] = {
+ "ahb2_apb_mux", CGU_CLK_MUX,
+ .parents = { -1, X2000_CLK_SCLKA, X2000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_CPCCR, 24, 2 },
+ },
+
+ [X2000_CLK_AHB2] = {
+ "ahb2", CGU_CLK_DIV,
+ .parents = { X2000_CLK_AHB2PMUX },
+ .div = { CGU_REG_CPCCR, 12, 1, 4, 20, -1, -1 },
+ },
+
+ [X2000_CLK_PCLK] = {
+ "pclk", CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2PMUX },
+ .div = { CGU_REG_CPCCR, 16, 1, 4, 20, -1, -1 },
+ .gate = { CGU_REG_CLKGR0, 28 },
+ },
+
+ [X2000_CLK_DDR] = {
+ "ddr", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { -1, X2000_CLK_SCLKA, X2000_CLK_MPLL, -1 },
+ .mux = { CGU_REG_DDRCDR, 30, 2 },
+ .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 31 },
+ },
+
+ [X2000_CLK_ISP] = {
+ "isp", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_ISPCDR, 30, 2 },
+ .div = { CGU_REG_ISPCDR, 0, 1, 4, 29, 28, 27 },
+ },
+
+ [X2000_CLK_MACPTP] = {
+ "mac_ptp", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_MACPTPCDR, 30, 2 },
+ .div = { CGU_REG_MACPTPCDR, 0, 1, 8, 29, 28, 27 },
+ },
+
+ [X2000_CLK_MACPHY] = {
+ "mac_phy", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_MACCDR, 30, 2 },
+ .div = { CGU_REG_MACCDR, 0, 1, 8, 29, 28, 27 },
+ },
+
+ [X2000_CLK_MAC0TX] = {
+ "mac0_tx", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_MAC0TXCDR, 30, 2 },
+ .div = { CGU_REG_MAC0TXCDR, 0, 1, 8, 29, 28, 27 },
+ },
+
+ [X2000_CLK_MAC1TX] = {
+ "mac1_tx", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_MAC1TXCDR, 30, 2 },
+ .div = { CGU_REG_MAC1TXCDR, 0, 1, 8, 29, 28, 27 },
+ },
+
+ [X2000_CLK_RSA] = {
+ "rsa", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EXCLK, -1 },
+ .mux = { CGU_REG_LPCDR, 30, 2 },
+ .div = { CGU_REG_LPCDR, 0, 1, 4, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 25 },
+ },
+
+ [X2000_CLK_SSIPLL] = {
+ "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_SSICDR, 30, 2 },
+ .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 },
+ },
+
+ [X2000_CLK_LCD] = {
+ "lcd", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EXCLK, -1 },
+ .mux = { CGU_REG_LPCDR, 30, 2 },
+ .div = { CGU_REG_LPCDR, 0, 1, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 23 },
+ },
+
+ [X2000_CLK_MSC0] = {
+ "msc0", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EXCLK, -1 },
+ .mux = { CGU_REG_MSC0CDR, 30, 2 },
+ .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 4 },
+ },
+
+ [X2000_CLK_MSC1] = {
+ "msc1", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EXCLK, -1 },
+ .mux = { CGU_REG_MSC1CDR, 30, 2 },
+ .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 5 },
+ },
+
+ [X2000_CLK_MSC2] = {
+ "msc2", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EXCLK, -1 },
+ .mux = { CGU_REG_MSC2CDR, 30, 2 },
+ .div = { CGU_REG_MSC2CDR, 0, 2, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR1, 25 },
+ },
+
+ [X2000_CLK_PWM] = {
+ "pwm", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_PWMCDR, 30, 2 },
+ .div = { CGU_REG_PWMCDR, 0, 1, 4, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR1, 5 },
+ },
+
+ [X2000_CLK_SFC] = {
+ "sfc", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_SFCCDR, 30, 2 },
+ .div = { CGU_REG_SFCCDR, 0, 1, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 2 },
+ },
+
+ [X2000_CLK_CIM] = {
+ "cim", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+ .parents = { X2000_CLK_SCLKA, X2000_CLK_MPLL, X2000_CLK_EPLL, -1 },
+ .mux = { CGU_REG_CIMCDR, 30, 2 },
+ .div = { CGU_REG_CIMCDR, 0, 1, 8, 29, 28, 27 },
+ .gate = { CGU_REG_CLKGR0, 22 },
+ },
+
+ [X2000_CLK_DMIC_EXCLK] = {
+ "dmic_exclk", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_AUDIOCR, 31 },
+ },
+
+ [X2000_CLK_DMIC] = {
+ "dmic", CGU_CLK_MUX | CGU_CLK_GATE,
+ .parents = { X2000_CLK_DMIC_EXCLK, X2000_CLK_I2S3 },
+ .mux = { CGU_REG_AUDIOCR, 0, 1},
+ .gate = { CGU_REG_CLKGR1, 13 },
+ },
+
+ [X2000_CLK_EXCLK_DIV512] = {
+ "exclk_div512", CGU_CLK_FIXDIV,
+ .parents = { X2000_CLK_EXCLK },
+ .fixdiv = { 512 },
+ },
+
+ [X2000_CLK_RTC] = {
+ "rtc_ercs", CGU_CLK_MUX | CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK_DIV512, X2000_CLK_RTCLK },
+ .mux = { CGU_REG_OPCR, 2, 1},
+ .gate = { CGU_REG_CLKGR0, 27 },
+ },
+
+ /* Gate-only clocks */
+
+ [X2000_CLK_EMC] = {
+ "emc", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR0, 0 },
+ },
+
+ [X2000_CLK_EFUSE] = {
+ "efuse", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR0, 1 },
+ },
+
+ [X2000_CLK_OTG] = {
+ "otg", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 3 },
+ },
+
+ [X2000_CLK_SCC] = {
+ "scc", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 6 },
+ },
+
+ [X2000_CLK_I2C0] = {
+ "i2c0", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR0, 7 },
+ },
+
+ [X2000_CLK_I2C1] = {
+ "i2c1", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR0, 8 },
+ },
+
+ [X2000_CLK_I2C2] = {
+ "i2c2", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR0, 9 },
+ },
+
+ [X2000_CLK_I2C3] = {
+ "i2c3", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR0, 10 },
+ },
+
+ [X2000_CLK_SADC] = {
+ "sadc", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 13 },
+ },
+
+ [X2000_CLK_UART0] = {
+ "uart0", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 14 },
+ },
+
+ [X2000_CLK_UART1] = {
+ "uart1", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 15 },
+ },
+
+ [X2000_CLK_UART2] = {
+ "uart2", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 16 },
+ },
+
+ [X2000_CLK_DTRNG] = {
+ "dtrng", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR0, 17 },
+ },
+
+ [X2000_CLK_TCU] = {
+ "tcu", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 18 },
+ },
+
+ [X2000_CLK_SSI0] = {
+ "ssi0", CGU_CLK_GATE,
+ .parents = { X2000_CLK_SSIPLL },
+ .gate = { CGU_REG_CLKGR0, 19 },
+ },
+
+ [X2000_CLK_OST] = {
+ "ost", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 20 },
+ },
+
+ [X2000_CLK_PDMA] = {
+ "pdma", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR0, 21 },
+ },
+
+ [X2000_CLK_SSI1] = {
+ "ssi1", CGU_CLK_GATE,
+ .parents = { X2000_CLK_SSIPLL },
+ .gate = { CGU_REG_CLKGR0, 26 },
+ },
+
+ [X2000_CLK_I2C4] = {
+ "i2c4", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR1, 0 },
+ },
+
+ [X2000_CLK_I2C5] = {
+ "i2c5", CGU_CLK_GATE,
+ .parents = { X2000_CLK_PCLK },
+ .gate = { CGU_REG_CLKGR1, 1 },
+ },
+
+ [X2000_CLK_ISP0] = {
+ "isp0", CGU_CLK_GATE,
+ .parents = { X2000_CLK_ISP },
+ .gate = { CGU_REG_CLKGR1, 2 },
+ },
+
+ [X2000_CLK_ISP1] = {
+ "isp1", CGU_CLK_GATE,
+ .parents = { X2000_CLK_ISP },
+ .gate = { CGU_REG_CLKGR1, 3 },
+ },
+
+ [X2000_CLK_HASH] = {
+ "hash", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR1, 6 },
+ },
+
+ [X2000_CLK_UART3] = {
+ "uart3", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 16 },
+ },
+
+ [X2000_CLK_UART4] = {
+ "uart4", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 17 },
+ },
+
+ [X2000_CLK_UART5] = {
+ "uart5", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 18 },
+ },
+
+ [X2000_CLK_UART6] = {
+ "uart6", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 19 },
+ },
+
+ [X2000_CLK_UART7] = {
+ "uart7", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 20 },
+ },
+
+ [X2000_CLK_UART8] = {
+ "uart8", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 21 },
+ },
+
+ [X2000_CLK_UART9] = {
+ "uart9", CGU_CLK_GATE,
+ .parents = { X2000_CLK_EXCLK },
+ .gate = { CGU_REG_CLKGR1, 22 },
+ },
+
+ [X2000_CLK_MAC0] = {
+ "mac0", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR1, 23 },
+ },
+
+ [X2000_CLK_MAC1] = {
+ "mac1", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR1, 24 },
+ },
+
+ [X2000_CLK_INTC] = {
+ "intc", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB2 },
+ .gate = { CGU_REG_CLKGR1, 26 },
+ },
+
+ [X2000_CLK_CSI] = {
+ "csi", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB0 },
+ .gate = { CGU_REG_CLKGR1, 28 },
+ },
+
+ [X2000_CLK_DSI] = {
+ "dsi", CGU_CLK_GATE,
+ .parents = { X2000_CLK_AHB0 },
+ .gate = { CGU_REG_CLKGR1, 29 },
+ },
+};
+
+static void __init x2000_cgu_init(struct device_node *np)
+{
+ int retval;
+
+ cgu = ingenic_cgu_new(x2000_cgu_clocks,
+ ARRAY_SIZE(x2000_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);
+}
+/*
+ * CGU has some children devices, this is useful for probing children devices
+ * in the case where the device node is compatible with "simple-mfd".
+ */
+CLK_OF_DECLARE_DRIVER(x2000_cgu, "ingenic,x2000-cgu", x2000_cgu_init);
--
2.7.4
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  Last update: 2021-06-28 20:23    [W:0.107 / U:0.672 seconds]
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