xref: /openbmc/linux/drivers/clk/pistachio/clk-pistachio.c (revision 4f2c0a4acffbec01079c28f839422e64ddeff004)
1  // SPDX-License-Identifier: GPL-2.0-only
2  /*
3   * Pistachio SoC clock controllers
4   *
5   * Copyright (C) 2014 Google, Inc.
6   */
7  
8  #include <linux/clk-provider.h>
9  #include <linux/init.h>
10  #include <linux/io.h>
11  #include <linux/kernel.h>
12  #include <linux/of.h>
13  
14  #include <dt-bindings/clock/pistachio-clk.h>
15  
16  #include "clk.h"
17  
18  static struct pistachio_gate pistachio_gates[] __initdata = {
19  	GATE(CLK_MIPS, "mips", "mips_div", 0x104, 0),
20  	GATE(CLK_AUDIO_IN, "audio_in", "audio_clk_in_gate", 0x104, 1),
21  	GATE(CLK_AUDIO, "audio", "audio_div", 0x104, 2),
22  	GATE(CLK_I2S, "i2s", "i2s_div", 0x104, 3),
23  	GATE(CLK_SPDIF, "spdif", "spdif_div", 0x104, 4),
24  	GATE(CLK_AUDIO_DAC, "audio_dac", "audio_dac_div", 0x104, 5),
25  	GATE(CLK_RPU_V, "rpu_v", "rpu_v_div", 0x104, 6),
26  	GATE(CLK_RPU_L, "rpu_l", "rpu_l_div", 0x104, 7),
27  	GATE(CLK_RPU_SLEEP, "rpu_sleep", "rpu_sleep_div", 0x104, 8),
28  	GATE(CLK_WIFI_PLL_GATE, "wifi_pll_gate", "wifi_pll_mux", 0x104, 9),
29  	GATE(CLK_RPU_CORE, "rpu_core", "rpu_core_div", 0x104, 10),
30  	GATE(CLK_WIFI_ADC, "wifi_adc", "wifi_div8_mux", 0x104, 11),
31  	GATE(CLK_WIFI_DAC, "wifi_dac", "wifi_div4_mux", 0x104, 12),
32  	GATE(CLK_USB_PHY, "usb_phy", "usb_phy_div", 0x104, 13),
33  	GATE(CLK_ENET_IN, "enet_in", "enet_clk_in_gate", 0x104, 14),
34  	GATE(CLK_ENET, "enet", "enet_div", 0x104, 15),
35  	GATE(CLK_UART0, "uart0", "uart0_div", 0x104, 16),
36  	GATE(CLK_UART1, "uart1", "uart1_div", 0x104, 17),
37  	GATE(CLK_PERIPH_SYS, "periph_sys", "sys_internal_div", 0x104, 18),
38  	GATE(CLK_SPI0, "spi0", "spi0_div", 0x104, 19),
39  	GATE(CLK_SPI1, "spi1", "spi1_div", 0x104, 20),
40  	GATE(CLK_EVENT_TIMER, "event_timer", "event_timer_div", 0x104, 21),
41  	GATE(CLK_AUX_ADC_INTERNAL, "aux_adc_internal", "sys_internal_div",
42  	     0x104, 22),
43  	GATE(CLK_AUX_ADC, "aux_adc", "aux_adc_div", 0x104, 23),
44  	GATE(CLK_SD_HOST, "sd_host", "sd_host_div", 0x104, 24),
45  	GATE(CLK_BT, "bt", "bt_div", 0x104, 25),
46  	GATE(CLK_BT_DIV4, "bt_div4", "bt_div4_div", 0x104, 26),
47  	GATE(CLK_BT_DIV8, "bt_div8", "bt_div8_div", 0x104, 27),
48  	GATE(CLK_BT_1MHZ, "bt_1mhz", "bt_1mhz_div", 0x104, 28),
49  };
50  
51  static struct pistachio_fixed_factor pistachio_ffs[] __initdata = {
52  	FIXED_FACTOR(CLK_WIFI_DIV4, "wifi_div4", "wifi_pll", 4),
53  	FIXED_FACTOR(CLK_WIFI_DIV8, "wifi_div8", "wifi_pll", 8),
54  };
55  
56  static struct pistachio_div pistachio_divs[] __initdata = {
57  	DIV(CLK_MIPS_INTERNAL_DIV, "mips_internal_div", "mips_pll_mux",
58  	    0x204, 2),
59  	DIV(CLK_MIPS_DIV, "mips_div", "mips_internal_div", 0x208, 8),
60  	DIV_F(CLK_AUDIO_DIV, "audio_div", "audio_mux",
61  		0x20c, 8, CLK_DIVIDER_ROUND_CLOSEST),
62  	DIV_F(CLK_I2S_DIV, "i2s_div", "audio_pll_mux",
63  		0x210, 8, CLK_DIVIDER_ROUND_CLOSEST),
64  	DIV_F(CLK_SPDIF_DIV, "spdif_div", "audio_pll_mux",
65  		0x214, 8, CLK_DIVIDER_ROUND_CLOSEST),
66  	DIV_F(CLK_AUDIO_DAC_DIV, "audio_dac_div", "audio_pll_mux",
67  		0x218, 8, CLK_DIVIDER_ROUND_CLOSEST),
68  	DIV(CLK_RPU_V_DIV, "rpu_v_div", "rpu_v_pll_mux", 0x21c, 2),
69  	DIV(CLK_RPU_L_DIV, "rpu_l_div", "rpu_l_mux", 0x220, 2),
70  	DIV(CLK_RPU_SLEEP_DIV, "rpu_sleep_div", "xtal", 0x224, 10),
71  	DIV(CLK_RPU_CORE_DIV, "rpu_core_div", "rpu_core_mux", 0x228, 3),
72  	DIV(CLK_USB_PHY_DIV, "usb_phy_div", "sys_internal_div", 0x22c, 6),
73  	DIV(CLK_ENET_DIV, "enet_div", "enet_mux", 0x230, 6),
74  	DIV_F(CLK_UART0_INTERNAL_DIV, "uart0_internal_div", "sys_pll_mux",
75  	      0x234, 3, CLK_DIVIDER_ROUND_CLOSEST),
76  	DIV_F(CLK_UART0_DIV, "uart0_div", "uart0_internal_div", 0x238, 10,
77  	      CLK_DIVIDER_ROUND_CLOSEST),
78  	DIV_F(CLK_UART1_INTERNAL_DIV, "uart1_internal_div", "sys_pll_mux",
79  	      0x23c, 3, CLK_DIVIDER_ROUND_CLOSEST),
80  	DIV_F(CLK_UART1_DIV, "uart1_div", "uart1_internal_div", 0x240, 10,
81  	      CLK_DIVIDER_ROUND_CLOSEST),
82  	DIV(CLK_SYS_INTERNAL_DIV, "sys_internal_div", "sys_pll_mux", 0x244, 3),
83  	DIV(CLK_SPI0_INTERNAL_DIV, "spi0_internal_div", "sys_pll_mux",
84  	    0x248, 3),
85  	DIV(CLK_SPI0_DIV, "spi0_div", "spi0_internal_div", 0x24c, 7),
86  	DIV(CLK_SPI1_INTERNAL_DIV, "spi1_internal_div", "sys_pll_mux",
87  	    0x250, 3),
88  	DIV(CLK_SPI1_DIV, "spi1_div", "spi1_internal_div", 0x254, 7),
89  	DIV(CLK_EVENT_TIMER_INTERNAL_DIV, "event_timer_internal_div",
90  	    "event_timer_mux", 0x258, 3),
91  	DIV(CLK_EVENT_TIMER_DIV, "event_timer_div", "event_timer_internal_div",
92  	    0x25c, 12),
93  	DIV(CLK_AUX_ADC_INTERNAL_DIV, "aux_adc_internal_div",
94  	    "aux_adc_internal", 0x260, 3),
95  	DIV(CLK_AUX_ADC_DIV, "aux_adc_div", "aux_adc_internal_div", 0x264, 10),
96  	DIV(CLK_SD_HOST_DIV, "sd_host_div", "sd_host_mux", 0x268, 6),
97  	DIV(CLK_BT_DIV, "bt_div", "bt_pll_mux", 0x26c, 6),
98  	DIV(CLK_BT_DIV4_DIV, "bt_div4_div", "bt_pll_mux", 0x270, 6),
99  	DIV(CLK_BT_DIV8_DIV, "bt_div8_div", "bt_pll_mux", 0x274, 6),
100  	DIV(CLK_BT_1MHZ_INTERNAL_DIV, "bt_1mhz_internal_div", "bt_pll_mux",
101  	    0x278, 3),
102  	DIV(CLK_BT_1MHZ_DIV, "bt_1mhz_div", "bt_1mhz_internal_div", 0x27c, 10),
103  };
104  
105  PNAME(mux_xtal_audio_refclk) = { "xtal", "audio_clk_in_gate" };
106  PNAME(mux_xtal_mips) = { "xtal", "mips_pll" };
107  PNAME(mux_xtal_audio) = { "xtal", "audio_pll", "audio_in" };
108  PNAME(mux_audio_debug) = { "audio_pll_mux", "debug_mux" };
109  PNAME(mux_xtal_rpu_v) = { "xtal", "rpu_v_pll" };
110  PNAME(mux_xtal_rpu_l) = { "xtal", "rpu_l_pll" };
111  PNAME(mux_rpu_l_mips) = { "rpu_l_pll_mux", "mips_pll_mux" };
112  PNAME(mux_xtal_wifi) = { "xtal", "wifi_pll" };
113  PNAME(mux_xtal_wifi_div4) = { "xtal", "wifi_div4" };
114  PNAME(mux_xtal_wifi_div8) = { "xtal", "wifi_div8" };
115  PNAME(mux_wifi_div4_rpu_l) = { "wifi_pll_gate", "wifi_div4_mux",
116  			       "rpu_l_pll_mux" };
117  PNAME(mux_xtal_sys) = { "xtal", "sys_pll" };
118  PNAME(mux_sys_enet) = { "sys_internal_div", "enet_in" };
119  PNAME(mux_audio_sys) = { "audio_pll_mux", "sys_internal_div" };
120  PNAME(mux_sys_bt) = { "sys_internal_div", "bt_pll_mux" };
121  PNAME(mux_xtal_bt) = { "xtal", "bt_pll" };
122  
123  static struct pistachio_mux pistachio_muxes[] __initdata = {
124  	MUX(CLK_AUDIO_REF_MUX, "audio_refclk_mux", mux_xtal_audio_refclk,
125  	    0x200, 0),
126  	MUX(CLK_MIPS_PLL_MUX, "mips_pll_mux", mux_xtal_mips, 0x200, 1),
127  	MUX(CLK_AUDIO_PLL_MUX, "audio_pll_mux", mux_xtal_audio, 0x200, 2),
128  	MUX(CLK_AUDIO_MUX, "audio_mux", mux_audio_debug, 0x200, 4),
129  	MUX(CLK_RPU_V_PLL_MUX, "rpu_v_pll_mux", mux_xtal_rpu_v, 0x200, 5),
130  	MUX(CLK_RPU_L_PLL_MUX, "rpu_l_pll_mux", mux_xtal_rpu_l, 0x200, 6),
131  	MUX(CLK_RPU_L_MUX, "rpu_l_mux", mux_rpu_l_mips, 0x200, 7),
132  	MUX(CLK_WIFI_PLL_MUX, "wifi_pll_mux", mux_xtal_wifi, 0x200, 8),
133  	MUX(CLK_WIFI_DIV4_MUX, "wifi_div4_mux", mux_xtal_wifi_div4, 0x200, 9),
134  	MUX(CLK_WIFI_DIV8_MUX, "wifi_div8_mux", mux_xtal_wifi_div8, 0x200, 10),
135  	MUX(CLK_RPU_CORE_MUX, "rpu_core_mux", mux_wifi_div4_rpu_l, 0x200, 11),
136  	MUX(CLK_SYS_PLL_MUX, "sys_pll_mux", mux_xtal_sys, 0x200, 13),
137  	MUX(CLK_ENET_MUX, "enet_mux", mux_sys_enet, 0x200, 14),
138  	MUX(CLK_EVENT_TIMER_MUX, "event_timer_mux", mux_audio_sys, 0x200, 15),
139  	MUX(CLK_SD_HOST_MUX, "sd_host_mux", mux_sys_bt, 0x200, 16),
140  	MUX(CLK_BT_PLL_MUX, "bt_pll_mux", mux_xtal_bt, 0x200, 17),
141  };
142  
143  static struct pistachio_pll pistachio_plls[] __initdata = {
144  	PLL_FIXED(CLK_MIPS_PLL, "mips_pll", "xtal", PLL_GF40LP_LAINT, 0x0),
145  	PLL_FIXED(CLK_AUDIO_PLL, "audio_pll", "audio_refclk_mux",
146  		  PLL_GF40LP_FRAC, 0xc),
147  	PLL_FIXED(CLK_RPU_V_PLL, "rpu_v_pll", "xtal", PLL_GF40LP_LAINT, 0x20),
148  	PLL_FIXED(CLK_RPU_L_PLL, "rpu_l_pll", "xtal", PLL_GF40LP_LAINT, 0x2c),
149  	PLL_FIXED(CLK_SYS_PLL, "sys_pll", "xtal", PLL_GF40LP_FRAC, 0x38),
150  	PLL_FIXED(CLK_WIFI_PLL, "wifi_pll", "xtal", PLL_GF40LP_FRAC, 0x4c),
151  	PLL_FIXED(CLK_BT_PLL, "bt_pll", "xtal", PLL_GF40LP_LAINT, 0x60),
152  };
153  
154  PNAME(mux_debug) = { "mips_pll_mux", "rpu_v_pll_mux",
155  		     "rpu_l_pll_mux", "sys_pll_mux",
156  		     "wifi_pll_mux", "bt_pll_mux" };
157  static const u32 mux_debug_idx[] = { 0x0, 0x1, 0x2, 0x4, 0x8, 0x10 };
158  
159  static unsigned int pistachio_critical_clks_core[] __initdata = {
160  	CLK_MIPS
161  };
162  
163  static unsigned int pistachio_critical_clks_sys[] __initdata = {
164  	PERIPH_CLK_SYS,
165  	PERIPH_CLK_SYS_BUS,
166  	PERIPH_CLK_DDR,
167  	PERIPH_CLK_ROM,
168  };
169  
pistachio_clk_init(struct device_node * np)170  static void __init pistachio_clk_init(struct device_node *np)
171  {
172  	struct pistachio_clk_provider *p;
173  	struct clk *debug_clk;
174  
175  	p = pistachio_clk_alloc_provider(np, CLK_NR_CLKS);
176  	if (!p)
177  		return;
178  
179  	pistachio_clk_register_pll(p, pistachio_plls,
180  				   ARRAY_SIZE(pistachio_plls));
181  	pistachio_clk_register_mux(p, pistachio_muxes,
182  				   ARRAY_SIZE(pistachio_muxes));
183  	pistachio_clk_register_div(p, pistachio_divs,
184  				   ARRAY_SIZE(pistachio_divs));
185  	pistachio_clk_register_fixed_factor(p, pistachio_ffs,
186  					    ARRAY_SIZE(pistachio_ffs));
187  	pistachio_clk_register_gate(p, pistachio_gates,
188  				    ARRAY_SIZE(pistachio_gates));
189  
190  	debug_clk = clk_register_mux_table(NULL, "debug_mux", mux_debug,
191  					   ARRAY_SIZE(mux_debug),
192  					   CLK_SET_RATE_NO_REPARENT,
193  					   p->base + 0x200, 18, 0x1f, 0,
194  					   mux_debug_idx, NULL);
195  	p->clk_data.clks[CLK_DEBUG_MUX] = debug_clk;
196  
197  	pistachio_clk_register_provider(p);
198  
199  	pistachio_clk_force_enable(p, pistachio_critical_clks_core,
200  				   ARRAY_SIZE(pistachio_critical_clks_core));
201  }
202  CLK_OF_DECLARE(pistachio_clk, "img,pistachio-clk", pistachio_clk_init);
203  
204  static struct pistachio_gate pistachio_periph_gates[] __initdata = {
205  	GATE(PERIPH_CLK_SYS, "sys", "periph_sys", 0x100, 0),
206  	GATE(PERIPH_CLK_SYS_BUS, "bus_sys", "periph_sys", 0x100, 1),
207  	GATE(PERIPH_CLK_DDR, "ddr", "periph_sys", 0x100, 2),
208  	GATE(PERIPH_CLK_ROM, "rom", "rom_div", 0x100, 3),
209  	GATE(PERIPH_CLK_COUNTER_FAST, "counter_fast", "counter_fast_div",
210  	     0x100, 4),
211  	GATE(PERIPH_CLK_COUNTER_SLOW, "counter_slow", "counter_slow_div",
212  	     0x100, 5),
213  	GATE(PERIPH_CLK_IR, "ir", "ir_div", 0x100, 6),
214  	GATE(PERIPH_CLK_WD, "wd", "wd_div", 0x100, 7),
215  	GATE(PERIPH_CLK_PDM, "pdm", "pdm_div", 0x100, 8),
216  	GATE(PERIPH_CLK_PWM, "pwm", "pwm_div", 0x100, 9),
217  	GATE(PERIPH_CLK_I2C0, "i2c0", "i2c0_div", 0x100, 10),
218  	GATE(PERIPH_CLK_I2C1, "i2c1", "i2c1_div", 0x100, 11),
219  	GATE(PERIPH_CLK_I2C2, "i2c2", "i2c2_div", 0x100, 12),
220  	GATE(PERIPH_CLK_I2C3, "i2c3", "i2c3_div", 0x100, 13),
221  };
222  
223  static struct pistachio_div pistachio_periph_divs[] __initdata = {
224  	DIV(PERIPH_CLK_ROM_DIV, "rom_div", "periph_sys", 0x10c, 7),
225  	DIV(PERIPH_CLK_COUNTER_FAST_DIV, "counter_fast_div", "periph_sys",
226  	    0x110, 7),
227  	DIV(PERIPH_CLK_COUNTER_SLOW_PRE_DIV, "counter_slow_pre_div",
228  	    "periph_sys", 0x114, 7),
229  	DIV(PERIPH_CLK_COUNTER_SLOW_DIV, "counter_slow_div",
230  	    "counter_slow_pre_div", 0x118, 7),
231  	DIV_F(PERIPH_CLK_IR_PRE_DIV, "ir_pre_div", "periph_sys", 0x11c, 7,
232  	      CLK_DIVIDER_ROUND_CLOSEST),
233  	DIV_F(PERIPH_CLK_IR_DIV, "ir_div", "ir_pre_div", 0x120, 7,
234  	      CLK_DIVIDER_ROUND_CLOSEST),
235  	DIV_F(PERIPH_CLK_WD_PRE_DIV, "wd_pre_div", "periph_sys", 0x124, 7,
236  	      CLK_DIVIDER_ROUND_CLOSEST),
237  	DIV_F(PERIPH_CLK_WD_DIV, "wd_div", "wd_pre_div", 0x128, 7,
238  	      CLK_DIVIDER_ROUND_CLOSEST),
239  	DIV(PERIPH_CLK_PDM_PRE_DIV, "pdm_pre_div", "periph_sys", 0x12c, 7),
240  	DIV(PERIPH_CLK_PDM_DIV, "pdm_div", "pdm_pre_div", 0x130, 7),
241  	DIV(PERIPH_CLK_PWM_PRE_DIV, "pwm_pre_div", "periph_sys", 0x134, 7),
242  	DIV(PERIPH_CLK_PWM_DIV, "pwm_div", "pwm_pre_div", 0x138, 7),
243  	DIV(PERIPH_CLK_I2C0_PRE_DIV, "i2c0_pre_div", "periph_sys", 0x13c, 7),
244  	DIV(PERIPH_CLK_I2C0_DIV, "i2c0_div", "i2c0_pre_div", 0x140, 7),
245  	DIV(PERIPH_CLK_I2C1_PRE_DIV, "i2c1_pre_div", "periph_sys", 0x144, 7),
246  	DIV(PERIPH_CLK_I2C1_DIV, "i2c1_div", "i2c1_pre_div", 0x148, 7),
247  	DIV(PERIPH_CLK_I2C2_PRE_DIV, "i2c2_pre_div", "periph_sys", 0x14c, 7),
248  	DIV(PERIPH_CLK_I2C2_DIV, "i2c2_div", "i2c2_pre_div", 0x150, 7),
249  	DIV(PERIPH_CLK_I2C3_PRE_DIV, "i2c3_pre_div", "periph_sys", 0x154, 7),
250  	DIV(PERIPH_CLK_I2C3_DIV, "i2c3_div", "i2c3_pre_div", 0x158, 7),
251  };
252  
pistachio_clk_periph_init(struct device_node * np)253  static void __init pistachio_clk_periph_init(struct device_node *np)
254  {
255  	struct pistachio_clk_provider *p;
256  
257  	p = pistachio_clk_alloc_provider(np, PERIPH_CLK_NR_CLKS);
258  	if (!p)
259  		return;
260  
261  	pistachio_clk_register_div(p, pistachio_periph_divs,
262  				   ARRAY_SIZE(pistachio_periph_divs));
263  	pistachio_clk_register_gate(p, pistachio_periph_gates,
264  				    ARRAY_SIZE(pistachio_periph_gates));
265  
266  	pistachio_clk_register_provider(p);
267  
268  	pistachio_clk_force_enable(p, pistachio_critical_clks_sys,
269  				   ARRAY_SIZE(pistachio_critical_clks_sys));
270  }
271  CLK_OF_DECLARE(pistachio_clk_periph, "img,pistachio-clk-periph",
272  	       pistachio_clk_periph_init);
273  
274  static struct pistachio_gate pistachio_sys_gates[] __initdata = {
275  	GATE(SYS_CLK_I2C0, "i2c0_sys", "sys", 0x8, 0),
276  	GATE(SYS_CLK_I2C1, "i2c1_sys", "sys", 0x8, 1),
277  	GATE(SYS_CLK_I2C2, "i2c2_sys", "sys", 0x8, 2),
278  	GATE(SYS_CLK_I2C3, "i2c3_sys", "sys", 0x8, 3),
279  	GATE(SYS_CLK_I2S_IN, "i2s_in_sys", "sys", 0x8, 4),
280  	GATE(SYS_CLK_PAUD_OUT, "paud_out_sys", "sys", 0x8, 5),
281  	GATE(SYS_CLK_SPDIF_OUT, "spdif_out_sys", "sys", 0x8, 6),
282  	GATE(SYS_CLK_SPI0_MASTER, "spi0_master_sys", "sys", 0x8, 7),
283  	GATE(SYS_CLK_SPI0_SLAVE, "spi0_slave_sys", "sys", 0x8, 8),
284  	GATE(SYS_CLK_PWM, "pwm_sys", "sys", 0x8, 9),
285  	GATE(SYS_CLK_UART0, "uart0_sys", "sys", 0x8, 10),
286  	GATE(SYS_CLK_UART1, "uart1_sys", "sys", 0x8, 11),
287  	GATE(SYS_CLK_SPI1, "spi1_sys", "sys", 0x8, 12),
288  	GATE(SYS_CLK_MDC, "mdc_sys", "sys", 0x8, 13),
289  	GATE(SYS_CLK_SD_HOST, "sd_host_sys", "sys", 0x8, 14),
290  	GATE(SYS_CLK_ENET, "enet_sys", "sys", 0x8, 15),
291  	GATE(SYS_CLK_IR, "ir_sys", "sys", 0x8, 16),
292  	GATE(SYS_CLK_WD, "wd_sys", "sys", 0x8, 17),
293  	GATE(SYS_CLK_TIMER, "timer_sys", "sys", 0x8, 18),
294  	GATE(SYS_CLK_I2S_OUT, "i2s_out_sys", "sys", 0x8, 24),
295  	GATE(SYS_CLK_SPDIF_IN, "spdif_in_sys", "sys", 0x8, 25),
296  	GATE(SYS_CLK_EVENT_TIMER, "event_timer_sys", "sys", 0x8, 26),
297  	GATE(SYS_CLK_HASH, "hash_sys", "sys", 0x8, 27),
298  };
299  
pistachio_cr_periph_init(struct device_node * np)300  static void __init pistachio_cr_periph_init(struct device_node *np)
301  {
302  	struct pistachio_clk_provider *p;
303  
304  	p = pistachio_clk_alloc_provider(np, SYS_CLK_NR_CLKS);
305  	if (!p)
306  		return;
307  
308  	pistachio_clk_register_gate(p, pistachio_sys_gates,
309  				    ARRAY_SIZE(pistachio_sys_gates));
310  
311  	pistachio_clk_register_provider(p);
312  }
313  CLK_OF_DECLARE(pistachio_cr_periph, "img,pistachio-cr-periph",
314  	       pistachio_cr_periph_init);
315  
316  static struct pistachio_gate pistachio_ext_gates[] __initdata = {
317  	GATE(EXT_CLK_ENET_IN, "enet_clk_in_gate", "enet_clk_in", 0x58, 5),
318  	GATE(EXT_CLK_AUDIO_IN, "audio_clk_in_gate", "audio_clk_in", 0x58, 8)
319  };
320  
pistachio_cr_top_init(struct device_node * np)321  static void __init pistachio_cr_top_init(struct device_node *np)
322  {
323  	struct pistachio_clk_provider *p;
324  
325  	p = pistachio_clk_alloc_provider(np, EXT_CLK_NR_CLKS);
326  	if (!p)
327  		return;
328  
329  	pistachio_clk_register_gate(p, pistachio_ext_gates,
330  				    ARRAY_SIZE(pistachio_ext_gates));
331  
332  	pistachio_clk_register_provider(p);
333  }
334  CLK_OF_DECLARE(pistachio_cr_top, "img,pistachio-cr-top",
335  	       pistachio_cr_top_init);
336