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1/*
2 * AM43XX Clock init
3 *
4 * Copyright (C) 2013 Texas Instruments, Inc
5 * Tero Kristo (t-kristo@ti.com)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation version 2.
10 *
11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
12 * kind, whether express or implied; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17#include <linux/kernel.h>
18#include <linux/list.h>
19#include <linux/clk.h>
20#include <linux/clk-provider.h>
21#include <linux/clk/ti.h>
22#include <dt-bindings/clock/am4.h>
23
24#include "clock.h"
25
26static const char * const am4_synctimer_32kclk_parents[] __initconst = {
27 "mux_synctimer32k_ck",
28 NULL,
29};
30
31static const struct omap_clkctrl_bit_data am4_counter_32k_bit_data[] __initconst = {
32 { 8, TI_CLK_GATE, am4_synctimer_32kclk_parents, NULL },
33 { 0 },
34};
35
36static const char * const am4_gpio0_dbclk_parents[] __initconst = {
37 "gpio0_dbclk_mux_ck",
38 NULL,
39};
40
41static const struct omap_clkctrl_bit_data am4_gpio1_bit_data[] __initconst = {
42 { 8, TI_CLK_GATE, am4_gpio0_dbclk_parents, NULL },
43 { 0 },
44};
45
46static const struct omap_clkctrl_reg_data am4_l4_wkup_clkctrl_regs[] __initconst = {
47 { AM4_ADC_TSC_CLKCTRL, NULL, CLKF_SW_SUP, "adc_tsc_fck", "l3s_tsc_clkdm" },
48 { AM4_L4_WKUP_CLKCTRL, NULL, CLKF_SW_SUP, "sys_clkin_ck", "l4_wkup_clkdm" },
49 { AM4_WKUP_M3_CLKCTRL, NULL, CLKF_NO_IDLEST, "sys_clkin_ck" },
50 { AM4_COUNTER_32K_CLKCTRL, am4_counter_32k_bit_data, CLKF_SW_SUP, "l4_wkup_cm:clk:0210:8" },
51 { AM4_TIMER1_CLKCTRL, NULL, CLKF_SW_SUP, "timer1_fck", "l4_wkup_clkdm" },
52 { AM4_WD_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "wdt1_fck", "l4_wkup_clkdm" },
53 { AM4_I2C1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_wkupdm_ck", "l4_wkup_clkdm" },
54 { AM4_UART1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_wkupdm_ck", "l4_wkup_clkdm" },
55 { AM4_SMARTREFLEX0_CLKCTRL, NULL, CLKF_SW_SUP, "smartreflex0_fck", "l4_wkup_clkdm" },
56 { AM4_SMARTREFLEX1_CLKCTRL, NULL, CLKF_SW_SUP, "smartreflex1_fck", "l4_wkup_clkdm" },
57 { AM4_CONTROL_CLKCTRL, NULL, CLKF_SW_SUP, "sys_clkin_ck", "l4_wkup_clkdm" },
58 { AM4_GPIO1_CLKCTRL, am4_gpio1_bit_data, CLKF_SW_SUP, "sys_clkin_ck", "l4_wkup_clkdm" },
59 { 0 },
60};
61
62static const struct omap_clkctrl_reg_data am4_mpu_clkctrl_regs[] __initconst = {
63 { AM4_MPU_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_mpu_m2_ck" },
64 { 0 },
65};
66
67static const struct omap_clkctrl_reg_data am4_gfx_l3_clkctrl_regs[] __initconst = {
68 { AM4_GFX_CLKCTRL, NULL, CLKF_SW_SUP, "gfx_fck_div_ck" },
69 { 0 },
70};
71
72static const struct omap_clkctrl_reg_data am4_l4_rtc_clkctrl_regs[] __initconst = {
73 { AM4_RTC_CLKCTRL, NULL, CLKF_SW_SUP, "clk_32768_ck" },
74 { 0 },
75};
76
77static const char * const am4_usb_otg_ss0_refclk960m_parents[] __initconst = {
78 "dpll_per_clkdcoldo",
79 NULL,
80};
81
82static const struct omap_clkctrl_bit_data am4_usb_otg_ss0_bit_data[] __initconst = {
83 { 8, TI_CLK_GATE, am4_usb_otg_ss0_refclk960m_parents, NULL },
84 { 0 },
85};
86
87static const struct omap_clkctrl_bit_data am4_usb_otg_ss1_bit_data[] __initconst = {
88 { 8, TI_CLK_GATE, am4_usb_otg_ss0_refclk960m_parents, NULL },
89 { 0 },
90};
91
92static const char * const am4_gpio1_dbclk_parents[] __initconst = {
93 "clkdiv32k_ick",
94 NULL,
95};
96
97static const struct omap_clkctrl_bit_data am4_gpio2_bit_data[] __initconst = {
98 { 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
99 { 0 },
100};
101
102static const struct omap_clkctrl_bit_data am4_gpio3_bit_data[] __initconst = {
103 { 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
104 { 0 },
105};
106
107static const struct omap_clkctrl_bit_data am4_gpio4_bit_data[] __initconst = {
108 { 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
109 { 0 },
110};
111
112static const struct omap_clkctrl_bit_data am4_gpio5_bit_data[] __initconst = {
113 { 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
114 { 0 },
115};
116
117static const struct omap_clkctrl_bit_data am4_gpio6_bit_data[] __initconst = {
118 { 8, TI_CLK_GATE, am4_gpio1_dbclk_parents, NULL },
119 { 0 },
120};
121
122static const struct omap_clkctrl_reg_data am4_l4_per_clkctrl_regs[] __initconst = {
123 { AM4_L3_MAIN_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
124 { AM4_AES_CLKCTRL, NULL, CLKF_SW_SUP, "aes0_fck", "l3_clkdm" },
125 { AM4_DES_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
126 { AM4_L3_INSTR_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
127 { AM4_OCMCRAM_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
128 { AM4_SHAM_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
129 { AM4_VPFE0_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3s_clkdm" },
130 { AM4_VPFE1_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3s_clkdm" },
131 { AM4_TPCC_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
132 { AM4_TPTC0_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
133 { AM4_TPTC1_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
134 { AM4_TPTC2_CLKCTRL, NULL, CLKF_SW_SUP, "l3_gclk", "l3_clkdm" },
135 { AM4_L4_HS_CLKCTRL, NULL, CLKF_SW_SUP, "l4hs_gclk", "l3_clkdm" },
136 { AM4_GPMC_CLKCTRL, NULL, CLKF_SW_SUP, "l3s_gclk", "l3s_clkdm" },
137 { AM4_MCASP0_CLKCTRL, NULL, CLKF_SW_SUP, "mcasp0_fck", "l3s_clkdm" },
138 { AM4_MCASP1_CLKCTRL, NULL, CLKF_SW_SUP, "mcasp1_fck", "l3s_clkdm" },
139 { AM4_MMC3_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk", "l3s_clkdm" },
140 { AM4_QSPI_CLKCTRL, NULL, CLKF_SW_SUP, "l3s_gclk", "l3s_clkdm" },
141 { AM4_USB_OTG_SS0_CLKCTRL, am4_usb_otg_ss0_bit_data, CLKF_SW_SUP, "l3s_gclk", "l3s_clkdm" },
142 { AM4_USB_OTG_SS1_CLKCTRL, am4_usb_otg_ss1_bit_data, CLKF_SW_SUP, "l3s_gclk", "l3s_clkdm" },
143 { AM4_PRUSS_CLKCTRL, NULL, CLKF_SW_SUP, "pruss_ocp_gclk", "pruss_ocp_clkdm" },
144 { AM4_L4_LS_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
145 { AM4_D_CAN0_CLKCTRL, NULL, CLKF_SW_SUP, "dcan0_fck" },
146 { AM4_D_CAN1_CLKCTRL, NULL, CLKF_SW_SUP, "dcan1_fck" },
147 { AM4_EPWMSS0_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
148 { AM4_EPWMSS1_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
149 { AM4_EPWMSS2_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
150 { AM4_EPWMSS3_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
151 { AM4_EPWMSS4_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
152 { AM4_EPWMSS5_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
153 { AM4_ELM_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
154 { AM4_GPIO2_CLKCTRL, am4_gpio2_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
155 { AM4_GPIO3_CLKCTRL, am4_gpio3_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
156 { AM4_GPIO4_CLKCTRL, am4_gpio4_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
157 { AM4_GPIO5_CLKCTRL, am4_gpio5_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
158 { AM4_GPIO6_CLKCTRL, am4_gpio6_bit_data, CLKF_SW_SUP, "l4ls_gclk" },
159 { AM4_HDQ1W_CLKCTRL, NULL, CLKF_SW_SUP, "func_12m_clk" },
160 { AM4_I2C2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
161 { AM4_I2C3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
162 { AM4_MAILBOX_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
163 { AM4_MMC1_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
164 { AM4_MMC2_CLKCTRL, NULL, CLKF_SW_SUP, "mmc_clk" },
165 { AM4_RNG_CLKCTRL, NULL, CLKF_SW_SUP, "rng_fck" },
166 { AM4_SPI0_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
167 { AM4_SPI1_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
168 { AM4_SPI2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
169 { AM4_SPI3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
170 { AM4_SPI4_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
171 { AM4_SPINLOCK_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
172 { AM4_TIMER2_CLKCTRL, NULL, CLKF_SW_SUP, "timer2_fck" },
173 { AM4_TIMER3_CLKCTRL, NULL, CLKF_SW_SUP, "timer3_fck" },
174 { AM4_TIMER4_CLKCTRL, NULL, CLKF_SW_SUP, "timer4_fck" },
175 { AM4_TIMER5_CLKCTRL, NULL, CLKF_SW_SUP, "timer5_fck" },
176 { AM4_TIMER6_CLKCTRL, NULL, CLKF_SW_SUP, "timer6_fck" },
177 { AM4_TIMER7_CLKCTRL, NULL, CLKF_SW_SUP, "timer7_fck" },
178 { AM4_TIMER8_CLKCTRL, NULL, CLKF_SW_SUP, "timer8_fck" },
179 { AM4_TIMER9_CLKCTRL, NULL, CLKF_SW_SUP, "timer9_fck" },
180 { AM4_TIMER10_CLKCTRL, NULL, CLKF_SW_SUP, "timer10_fck" },
181 { AM4_TIMER11_CLKCTRL, NULL, CLKF_SW_SUP, "timer11_fck" },
182 { AM4_UART2_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
183 { AM4_UART3_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
184 { AM4_UART4_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
185 { AM4_UART5_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
186 { AM4_UART6_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_per_m2_div4_ck" },
187 { AM4_OCP2SCP0_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
188 { AM4_OCP2SCP1_CLKCTRL, NULL, CLKF_SW_SUP, "l4ls_gclk" },
189 { AM4_EMIF_CLKCTRL, NULL, CLKF_SW_SUP, "dpll_ddr_m2_ck", "emif_clkdm" },
190 { AM4_DSS_CORE_CLKCTRL, NULL, CLKF_SW_SUP | CLKF_SET_RATE_PARENT, "disp_clk", "dss_clkdm" },
191 { AM4_CPGMAC0_CLKCTRL, NULL, CLKF_SW_SUP, "cpsw_125mhz_gclk", "cpsw_125mhz_clkdm" },
192 { 0 },
193};
194
195const struct omap_clkctrl_data am4_clkctrl_compat_data[] __initconst = {
196 { 0x44df2820, am4_l4_wkup_clkctrl_regs },
197 { 0x44df8320, am4_mpu_clkctrl_regs },
198 { 0x44df8420, am4_gfx_l3_clkctrl_regs },
199 { 0x44df8520, am4_l4_rtc_clkctrl_regs },
200 { 0x44df8820, am4_l4_per_clkctrl_regs },
201 { 0 },
202};
203
204const struct omap_clkctrl_data am438x_clkctrl_compat_data[] __initconst = {
205 { 0x44df2820, am4_l4_wkup_clkctrl_regs },
206 { 0x44df8320, am4_mpu_clkctrl_regs },
207 { 0x44df8420, am4_gfx_l3_clkctrl_regs },
208 { 0x44df8820, am4_l4_per_clkctrl_regs },
209 { 0 },
210};
211
212struct ti_dt_clk am43xx_compat_clks[] = {
213 DT_CLK(NULL, "timer_32k_ck", "clkdiv32k_ick"),
214 DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"),
215 DT_CLK(NULL, "gpio0_dbclk", "l4_wkup_cm:0348:8"),
216 DT_CLK(NULL, "gpio1_dbclk", "l4_per_cm:0458:8"),
217 DT_CLK(NULL, "gpio2_dbclk", "l4_per_cm:0460:8"),
218 DT_CLK(NULL, "gpio3_dbclk", "l4_per_cm:0468:8"),
219 DT_CLK(NULL, "gpio4_dbclk", "l4_per_cm:0470:8"),
220 DT_CLK(NULL, "gpio5_dbclk", "l4_per_cm:0478:8"),
221 DT_CLK(NULL, "synctimer_32kclk", "l4_wkup_cm:0210:8"),
222 DT_CLK(NULL, "usb_otg_ss0_refclk960m", "l4_per_cm:0240:8"),
223 DT_CLK(NULL, "usb_otg_ss1_refclk960m", "l4_per_cm:0248:8"),
224 { .node_name = NULL },
225};