1 /*
2  * Copyright (C) 2015 Freescale Semiconductor, Inc.
3  *
4  * Author:
5  *	Peng Fan <Peng.Fan@freescale.com>
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #ifndef _ASM_ARCH_CLOCK_H
11 #define _ASM_ARCH_CLOCK_H
12 
13 #include <common.h>
14 #include <asm/arch/crm_regs.h>
15 
16 #ifdef CONFIG_SYS_MX7_HCLK
17 #define MXC_HCLK	CONFIG_SYS_MX7_HCLK
18 #else
19 #define MXC_HCLK	24000000
20 #endif
21 
22 #ifdef CONFIG_SYS_MX7_CLK32
23 #define MXC_CLK32	CONFIG_SYS_MX7_CLK32
24 #else
25 #define MXC_CLK32	32768
26 #endif
27 
28 /* Mainly for compatible to imx common code. */
29 enum mxc_clock {
30 	MXC_ARM_CLK = 0,
31 	MXC_AHB_CLK,
32 	MXC_IPG_CLK,
33 	MXC_UART_CLK,
34 	MXC_CSPI_CLK,
35 	MXC_AXI_CLK,
36 	MXC_DDR_CLK,
37 	MXC_ESDHC_CLK,
38 	MXC_ESDHC2_CLK,
39 	MXC_ESDHC3_CLK,
40 	MXC_I2C_CLK,
41 };
42 
43 /* PLL supported by i.mx7d */
44 enum pll_clocks {
45 	PLL_CORE,	/* Core PLL */
46 	PLL_SYS,	/* System PLL*/
47 	PLL_ENET,	/* Enet PLL */
48 	PLL_AUDIO,	/* Audio PLL */
49 	PLL_VIDEO,	/* Video PLL*/
50 	PLL_DDR,	/* Dram PLL */
51 	PLL_USB,	/* USB PLL, fixed at 480MHZ */
52 };
53 
54 /* clk src for clock root gen */
55 enum clk_root_src {
56 	OSC_24M_CLK,
57 
58 	PLL_ARM_MAIN_800M_CLK,
59 
60 	PLL_SYS_MAIN_480M_CLK,
61 	PLL_SYS_MAIN_240M_CLK,
62 	PLL_SYS_MAIN_120M_CLK,
63 	PLL_SYS_PFD0_392M_CLK,
64 	PLL_SYS_PFD0_196M_CLK,
65 	PLL_SYS_PFD1_332M_CLK,
66 	PLL_SYS_PFD1_166M_CLK,
67 	PLL_SYS_PFD2_270M_CLK,
68 	PLL_SYS_PFD2_135M_CLK,
69 	PLL_SYS_PFD3_CLK,
70 	PLL_SYS_PFD4_CLK,
71 	PLL_SYS_PFD5_CLK,
72 	PLL_SYS_PFD6_CLK,
73 	PLL_SYS_PFD7_CLK,
74 
75 	PLL_ENET_MAIN_500M_CLK,
76 	PLL_ENET_MAIN_250M_CLK,
77 	PLL_ENET_MAIN_125M_CLK,
78 	PLL_ENET_MAIN_100M_CLK,
79 	PLL_ENET_MAIN_50M_CLK,
80 	PLL_ENET_MAIN_40M_CLK,
81 	PLL_ENET_MAIN_25M_CLK,
82 
83 	PLL_DRAM_MAIN_1066M_CLK,
84 	PLL_DRAM_MAIN_533M_CLK,
85 
86 	PLL_AUDIO_MAIN_CLK,
87 	PLL_VIDEO_MAIN_CLK,
88 
89 	PLL_USB_MAIN_480M_CLK,		/* fixed at 480MHZ */
90 
91 	EXT_CLK_1,
92 	EXT_CLK_2,
93 	EXT_CLK_3,
94 	EXT_CLK_4,
95 
96 	REF_1M_CLK,
97 	OSC_32K_CLK,
98 };
99 
100 /*
101  * Clock root index
102  */
103 enum clk_root_index {
104 	ARM_A7_CLK_ROOT = 0,
105 	ARM_M4_CLK_ROOT = 1,
106 	ARM_M0_CLK_ROOT = 2,
107 	MAIN_AXI_CLK_ROOT = 16,
108 	DISP_AXI_CLK_ROOT = 17,
109 	ENET_AXI_CLK_ROOT = 18,
110 	NAND_USDHC_BUS_CLK_ROOT = 19,
111 	AHB_CLK_ROOT = 32,
112 	DRAM_PHYM_CLK_ROOT = 48,
113 	DRAM_CLK_ROOT = 49,
114 	DRAM_PHYM_ALT_CLK_ROOT = 64,
115 	DRAM_ALT_CLK_ROOT = 65,
116 	USB_HSIC_CLK_ROOT = 66,
117 	PCIE_CTRL_CLK_ROOT = 67,
118 	PCIE_PHY_CLK_ROOT = 68,
119 	EPDC_PIXEL_CLK_ROOT = 69,
120 	LCDIF_PIXEL_CLK_ROOT = 70,
121 	MIPI_DSI_EXTSER_CLK_ROOT = 71,
122 	MIPI_CSI_WARP_CLK_ROOT = 72,
123 	MIPI_DPHY_REF_CLK_ROOT = 73,
124 	SAI1_CLK_ROOT = 74,
125 	SAI2_CLK_ROOT = 75,
126 	SAI3_CLK_ROOT = 76,
127 	SPDIF_CLK_ROOT = 77,
128 	ENET1_REF_CLK_ROOT = 78,
129 	ENET1_TIME_CLK_ROOT = 79,
130 	ENET2_REF_CLK_ROOT = 80,
131 	ENET2_TIME_CLK_ROOT = 81,
132 	ENET_PHY_REF_CLK_ROOT = 82,
133 	EIM_CLK_ROOT = 83,
134 	NAND_CLK_ROOT = 84,
135 	QSPI_CLK_ROOT = 85,
136 	USDHC1_CLK_ROOT = 86,
137 	USDHC2_CLK_ROOT = 87,
138 	USDHC3_CLK_ROOT = 88,
139 	CAN1_CLK_ROOT = 89,
140 	CAN2_CLK_ROOT = 90,
141 	I2C1_CLK_ROOT = 91,
142 	I2C2_CLK_ROOT = 92,
143 	I2C3_CLK_ROOT = 93,
144 	I2C4_CLK_ROOT = 94,
145 	UART1_CLK_ROOT = 95,
146 	UART2_CLK_ROOT = 96,
147 	UART3_CLK_ROOT = 97,
148 	UART4_CLK_ROOT = 98,
149 	UART5_CLK_ROOT = 99,
150 	UART6_CLK_ROOT = 100,
151 	UART7_CLK_ROOT = 101,
152 	ECSPI1_CLK_ROOT = 102,
153 	ECSPI2_CLK_ROOT = 103,
154 	ECSPI3_CLK_ROOT = 104,
155 	ECSPI4_CLK_ROOT = 105,
156 	PWM1_CLK_ROOT = 106,
157 	PWM2_CLK_ROOT = 107,
158 	PWM3_CLK_ROOT = 108,
159 	PWM4_CLK_ROOT = 109,
160 	FLEXTIMER1_CLK_ROOT = 110,
161 	FLEXTIMER2_CLK_ROOT = 111,
162 	SIM1_CLK_ROOT = 112,
163 	SIM2_CLK_ROOT = 113,
164 	GPT1_CLK_ROOT = 114,
165 	GPT2_CLK_ROOT = 115,
166 	GPT3_CLK_ROOT = 116,
167 	GPT4_CLK_ROOT = 117,
168 	TRACE_CLK_ROOT = 118,
169 	WDOG_CLK_ROOT = 119,
170 	CSI_MCLK_CLK_ROOT = 120,
171 	AUDIO_MCLK_CLK_ROOT = 121,
172 	WRCLK_CLK_ROOT = 122,
173 	IPP_DO_CLKO1 = 123,
174 	IPP_DO_CLKO2 = 124,
175 
176 	CLK_ROOT_MAX,
177 };
178 
179 struct clk_root_setting {
180 	enum clk_root_index root;
181 	u32 setting;
182 };
183 
184 /*
185  * CCGR mapping
186  */
187 enum clk_ccgr_index {
188 	CCGR_CPU = 0,
189 	CCGR_M4 = 1,
190 	CCGR_SIM_MAIN = 4,
191 	CCGR_SIM_DISPLAY = 5,
192 	CCGR_SIM_ENET = 6,
193 	CCGR_SIM_M = 7,
194 	CCGR_SIM_S = 8,
195 	CCGR_SIM_WAKEUP = 9,
196 	CCGR_IPMUX1 = 10,
197 	CCGR_IPMUX2 = 11,
198 	CCGR_IPMUX3 = 12,
199 	CCGR_ROM = 16,
200 	CCGR_OCRAM = 17,
201 	CCGR_OCRAM_S = 18,
202 	CCGR_DRAM = 19,
203 	CCGR_RAWNAND = 20,
204 	CCGR_QSPI = 21,
205 	CCGR_WEIM = 22,
206 	CCGR_ADC = 32,
207 	CCGR_ANATOP = 33,
208 	CCGR_SCTR = 34,
209 	CCGR_OCOTP = 35,
210 	CCGR_CAAM = 36,
211 	CCGR_SNVS = 37,
212 	CCGR_RDC = 38,
213 	CCGR_MU = 39,
214 	CCGR_HS = 40,
215 	CCGR_DVFS = 41,
216 	CCGR_QOS = 42,
217 	CCGR_QOS_DISPMIX = 43,
218 	CCGR_QOS_MEGAMIX = 44,
219 	CCGR_CSU = 45,
220 	CCGR_DBGMON = 46,
221 	CCGR_DEBUG = 47,
222 	CCGR_TRACE = 48,
223 	CCGR_SEC_DEBUG = 49,
224 	CCGR_SEMA1 = 64,
225 	CCGR_SEMA2 = 65,
226 	CCGR_PERFMON1 = 68,
227 	CCGR_PERFMON2 = 69,
228 	CCGR_SDMA = 72,
229 	CCGR_CSI = 73,
230 	CCGR_EPDC = 74,
231 	CCGR_LCDIF = 75,
232 	CCGR_PXP = 76,
233 	CCGR_PCIE = 96,
234 	CCGR_MIPI_CSI = 100,
235 	CCGR_MIPI_DSI = 101,
236 	CCGR_MIPI_MEM_PHY = 102,
237 	CCGR_USB_CTRL = 104,
238 	CCGR_USB_HSIC = 105,
239 	CCGR_USB_PHY1 = 106,
240 	CCGR_USB_PHY2 = 107,
241 	CCGR_USDHC1 = 108,
242 	CCGR_USDHC2 = 109,
243 	CCGR_USDHC3 = 110,
244 	CCGR_ENET1 = 112,
245 	CCGR_ENET2 = 113,
246 	CCGR_CAN1 = 116,
247 	CCGR_CAN2 = 117,
248 	CCGR_ECSPI1 = 120,
249 	CCGR_ECSPI2 = 121,
250 	CCGR_ECSPI3 = 122,
251 	CCGR_ECSPI4 = 123,
252 	CCGR_GPT1 = 124,
253 	CCGR_GPT2 = 125,
254 	CCGR_GPT3 = 126,
255 	CCGR_GPT4 = 127,
256 	CCGR_FTM1 = 128,
257 	CCGR_FTM2 = 129,
258 	CCGR_PWM1 = 132,
259 	CCGR_PWM2 = 133,
260 	CCGR_PWM3 = 134,
261 	CCGR_PWM4 = 135,
262 	CCGR_I2C1 = 136,
263 	CCGR_I2C2 = 137,
264 	CCGR_I2C3 = 138,
265 	CCGR_I2C4 = 139,
266 	CCGR_SAI1 = 140,
267 	CCGR_SAI2 = 141,
268 	CCGR_SAI3 = 142,
269 	CCGR_SIM1 = 144,
270 	CCGR_SIM2 = 145,
271 	CCGR_UART1 = 148,
272 	CCGR_UART2 = 149,
273 	CCGR_UART3 = 150,
274 	CCGR_UART4 = 151,
275 	CCGR_UART5 = 152,
276 	CCGR_UART6 = 153,
277 	CCGR_UART7 = 154,
278 	CCGR_WDOG1 = 156,
279 	CCGR_WDOG2 = 157,
280 	CCGR_WDOG3 = 158,
281 	CCGR_WDOG4 = 159,
282 	CCGR_GPIO1 = 160,
283 	CCGR_GPIO2 = 161,
284 	CCGR_GPIO3 = 162,
285 	CCGR_GPIO4 = 163,
286 	CCGR_GPIO5 = 164,
287 	CCGR_GPIO6 = 165,
288 	CCGR_GPIO7 = 166,
289 	CCGR_IOMUX = 168,
290 	CCGR_IOMUX_LPSR = 169,
291 	CCGR_KPP = 170,
292 
293 	CCGR_SKIP,
294 	CCGR_MAX,
295 };
296 
297 /* Clock root channel */
298 enum clk_root_type {
299 	CCM_CORE_CHANNEL,
300 	CCM_BUS_CHANNEL,
301 	CCM_AHB_CHANNEL,
302 	CCM_DRAM_PHYM_CHANNEL,
303 	CCM_DRAM_CHANNEL,
304 	CCM_IP_CHANNEL,
305 };
306 
307 #include <asm/arch/clock_slice.h>
308 
309 /*
310  * entry: the clock root index
311  * type: ccm channel
312  * src_mux: each entry corresponding to the clock src, detailed info in CCM RM
313  */
314 struct clk_root_map {
315 	enum clk_root_index entry;
316 	enum clk_root_type type;
317 	uint8_t src_mux[8];
318 };
319 
320 enum enet_freq {
321 	ENET_25MHZ,
322 	ENET_50MHZ,
323 	ENET_125MHZ,
324 };
325 
326 u32 get_root_clk(enum clk_root_index clock_id);
327 u32 mxc_get_clock(enum mxc_clock clk);
328 u32 imx_get_uartclk(void);
329 u32 imx_get_fecclk(void);
330 void clock_init(void);
331 #ifdef CONFIG_SYS_I2C_MXC
332 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
333 #endif
334 #ifdef CONFIG_FEC_MXC
335 int set_clk_enet(enum enet_freq type);
336 #endif
337 int set_clk_qspi(void);
338 int set_clk_nand(void);
339 #ifdef CONFIG_MXC_OCOTP
340 void enable_ocotp_clk(unsigned char enable);
341 #endif
342 void enable_usboh3_clk(unsigned char enable);
343 #ifdef CONFIG_SECURE_BOOT
344 void hab_caam_clock_enable(unsigned char enable);
345 #endif
346 void mxs_set_lcdclk(uint32_t base_addr, uint32_t freq);
347 void enable_thermal_clk(void);
348 #endif
349