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1 | /* |
2 | * Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | */ | |
9 | #include <linux/mm.h> | |
10 | #include <linux/delay.h> | |
11 | #include <linux/clk.h> | |
12 | #include <linux/io.h> | |
13 | #include <linux/clkdev.h> | |
14 | #include <linux/of.h> | |
15 | #include <linux/err.h> | |
16 | ||
17 | #include <mach/hardware.h> | |
18 | #include <mach/common.h> | |
19 | ||
20 | #include "crm-regs-imx5.h" | |
21 | #include "clk.h" | |
22 | ||
23 | /* Low-power Audio Playback Mode clock */ | |
24 | static const char *lp_apm_sel[] = { "osc", }; | |
25 | ||
26 | /* This is used multiple times */ | |
27 | static const char *standard_pll_sel[] = { "pll1_sw", "pll2_sw", "pll3_sw", "lp_apm", }; | |
28 | static const char *periph_apm_sel[] = { "pll1_sw", "pll3_sw", "lp_apm", }; | |
29 | static const char *main_bus_sel[] = { "pll2_sw", "periph_apm", }; | |
30 | static const char *per_lp_apm_sel[] = { "main_bus", "lp_apm", }; | |
31 | static const char *per_root_sel[] = { "per_podf", "ipg", }; | |
32 | static const char *esdhc_c_sel[] = { "esdhc_a_podf", "esdhc_b_podf", }; | |
33 | static const char *esdhc_d_sel[] = { "esdhc_a_podf", "esdhc_b_podf", }; | |
34 | static const char *emi_slow_sel[] = { "main_bus", "ahb", }; | |
35 | static const char *usb_phy_sel_str[] = { "osc", "usb_phy_podf", }; | |
36 | static const char *mx51_ipu_di0_sel[] = { "di_pred", "osc", "ckih1", "tve_di", }; | |
37 | static const char *mx53_ipu_di0_sel[] = { "di_pred", "osc", "ckih1", "di_pll4_podf", "dummy", "ldb_di0", }; | |
38 | static const char *mx53_ldb_di0_sel[] = { "pll3_sw", "pll4_sw", }; | |
39 | static const char *mx51_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "ipp_di1", }; | |
40 | static const char *mx53_ipu_di1_sel[] = { "di_pred", "osc", "ckih1", "tve_di", "ipp_di1", "ldb_di1", }; | |
41 | static const char *mx53_ldb_di1_sel[] = { "pll3_sw", "pll4_sw", }; | |
42 | static const char *mx51_tve_ext_sel[] = { "osc", "ckih1", }; | |
43 | static const char *mx53_tve_ext_sel[] = { "pll4_sw", "ckih1", }; | |
44 | static const char *tve_sel[] = { "tve_pred", "tve_ext_sel", }; | |
45 | static const char *ipu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", }; | |
46 | static const char *vpu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", }; | |
47 | ||
48 | enum imx5_clks { | |
49 | dummy, ckil, osc, ckih1, ckih2, ahb, ipg, axi_a, axi_b, uart_pred, | |
50 | uart_root, esdhc_a_pred, esdhc_b_pred, esdhc_c_s, esdhc_d_s, | |
51 | emi_sel, emi_slow_podf, nfc_podf, ecspi_pred, ecspi_podf, usboh3_pred, | |
52 | usboh3_podf, usb_phy_pred, usb_phy_podf, cpu_podf, di_pred, tve_di, | |
53 | tve_s, uart1_ipg_gate, uart1_per_gate, uart2_ipg_gate, | |
54 | uart2_per_gate, uart3_ipg_gate, uart3_per_gate, i2c1_gate, i2c2_gate, | |
55 | gpt_ipg_gate, pwm1_ipg_gate, pwm1_hf_gate, pwm2_ipg_gate, pwm2_hf_gate, | |
56 | gpt_gate, fec_gate, usboh3_per_gate, esdhc1_ipg_gate, esdhc2_ipg_gate, | |
57 | esdhc3_ipg_gate, esdhc4_ipg_gate, ssi1_ipg_gate, ssi2_ipg_gate, | |
58 | ssi3_ipg_gate, ecspi1_ipg_gate, ecspi1_per_gate, ecspi2_ipg_gate, | |
59 | ecspi2_per_gate, cspi_ipg_gate, sdma_gate, emi_slow_gate, ipu_s, | |
60 | ipu_gate, nfc_gate, ipu_di1_gate, vpu_s, vpu_gate, | |
61 | vpu_reference_gate, uart4_ipg_gate, uart4_per_gate, uart5_ipg_gate, | |
62 | uart5_per_gate, tve_gate, tve_pred, esdhc1_per_gate, esdhc2_per_gate, | |
63 | esdhc3_per_gate, esdhc4_per_gate, usb_phy_gate, hsi2c_gate, | |
64 | mipi_hsc1_gate, mipi_hsc2_gate, mipi_esc_gate, mipi_hsp_gate, | |
65 | ldb_di1_div_3_5, ldb_di1_div, ldb_di0_div_3_5, ldb_di0_div, | |
66 | ldb_di1_gate, can2_serial_gate, can2_ipg_gate, i2c3_gate, lp_apm, | |
67 | periph_apm, main_bus, ahb_max, aips_tz1, aips_tz2, tmax1, tmax2, | |
68 | tmax3, spba, uart_sel, esdhc_a_sel, esdhc_b_sel, esdhc_a_podf, | |
69 | esdhc_b_podf, ecspi_sel, usboh3_sel, usb_phy_sel, iim_gate, | |
70 | usboh3_gate, emi_fast_gate, ipu_di0_gate,gpc_dvfs, pll1_sw, pll2_sw, | |
71 | pll3_sw, ipu_di0_sel, ipu_di1_sel, tve_ext_sel, mx51_mipi, pll4_sw, | |
72 | ldb_di1_sel, di_pll4_podf, ldb_di0_sel, ldb_di0_gate, usb_phy1_gate, | |
73 | usb_phy2_gate, per_lp_apm, per_pred1, per_pred2, per_podf, per_root, | |
74 | clk_max | |
75 | }; | |
76 | ||
77 | static struct clk *clk[clk_max]; | |
78 | ||
79 | static void __init mx5_clocks_common_init(unsigned long rate_ckil, | |
80 | unsigned long rate_osc, unsigned long rate_ckih1, | |
81 | unsigned long rate_ckih2) | |
82 | { | |
83 | int i; | |
84 | ||
85 | clk[dummy] = imx_clk_fixed("dummy", 0); | |
86 | clk[ckil] = imx_clk_fixed("ckil", rate_ckil); | |
87 | clk[osc] = imx_clk_fixed("osc", rate_osc); | |
88 | clk[ckih1] = imx_clk_fixed("ckih1", rate_ckih1); | |
89 | clk[ckih2] = imx_clk_fixed("ckih2", rate_ckih2); | |
90 | ||
91 | clk[lp_apm] = imx_clk_mux("lp_apm", MXC_CCM_CCSR, 9, 1, | |
92 | lp_apm_sel, ARRAY_SIZE(lp_apm_sel)); | |
93 | clk[periph_apm] = imx_clk_mux("periph_apm", MXC_CCM_CBCMR, 12, 2, | |
94 | periph_apm_sel, ARRAY_SIZE(periph_apm_sel)); | |
95 | clk[main_bus] = imx_clk_mux("main_bus", MXC_CCM_CBCDR, 25, 1, | |
96 | main_bus_sel, ARRAY_SIZE(main_bus_sel)); | |
97 | clk[per_lp_apm] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCDR, 1, 1, | |
98 | per_lp_apm_sel, ARRAY_SIZE(per_lp_apm_sel)); | |
99 | clk[per_pred1] = imx_clk_divider("per_pred1", "per_lp_apm", MXC_CCM_CBCDR, 6, 2); | |
100 | clk[per_pred2] = imx_clk_divider("per_pred2", "per_pred1", MXC_CCM_CBCDR, 3, 3); | |
101 | clk[per_podf] = imx_clk_divider("per_podf", "per_pred2", MXC_CCM_CBCDR, 0, 3); | |
102 | clk[per_root] = imx_clk_mux("per_root", MXC_CCM_CBCDR, 1, 0, | |
103 | per_root_sel, ARRAY_SIZE(per_root_sel)); | |
104 | clk[ahb] = imx_clk_divider("ahb", "main_bus", MXC_CCM_CBCDR, 10, 3); | |
105 | clk[ahb_max] = imx_clk_gate2("ahb_max", "ahb", MXC_CCM_CCGR0, 28); | |
106 | clk[aips_tz1] = imx_clk_gate2("aips_tz1", "ahb", MXC_CCM_CCGR0, 24); | |
107 | clk[aips_tz2] = imx_clk_gate2("aips_tz2", "ahb", MXC_CCM_CCGR0, 26); | |
108 | clk[tmax1] = imx_clk_gate2("tmax1", "ahb", MXC_CCM_CCGR1, 0); | |
109 | clk[tmax2] = imx_clk_gate2("tmax2", "ahb", MXC_CCM_CCGR1, 2); | |
110 | clk[tmax3] = imx_clk_gate2("tmax3", "ahb", MXC_CCM_CCGR1, 4); | |
111 | clk[spba] = imx_clk_gate2("spba", "ipg", MXC_CCM_CCGR5, 0); | |
112 | clk[ipg] = imx_clk_divider("ipg", "ahb", MXC_CCM_CBCDR, 8, 2); | |
113 | clk[axi_a] = imx_clk_divider("axi_a", "main_bus", MXC_CCM_CBCDR, 16, 3); | |
114 | clk[axi_b] = imx_clk_divider("axi_b", "main_bus", MXC_CCM_CBCDR, 19, 3); | |
115 | clk[uart_sel] = imx_clk_mux("uart_sel", MXC_CCM_CSCMR1, 24, 2, | |
116 | standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); | |
117 | clk[uart_pred] = imx_clk_divider("uart_pred", "uart_sel", MXC_CCM_CSCDR1, 3, 3); | |
118 | clk[uart_root] = imx_clk_divider("uart_root", "uart_pred", MXC_CCM_CSCDR1, 0, 3); | |
119 | ||
120 | clk[esdhc_a_sel] = imx_clk_mux("esdhc_a_sel", MXC_CCM_CSCMR1, 20, 2, | |
121 | standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); | |
122 | clk[esdhc_b_sel] = imx_clk_mux("esdhc_b_sel", MXC_CCM_CSCMR1, 16, 2, | |
123 | standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); | |
124 | clk[esdhc_a_pred] = imx_clk_divider("esdhc_a_pred", "esdhc_a_sel", MXC_CCM_CSCDR1, 16, 3); | |
125 | clk[esdhc_a_podf] = imx_clk_divider("esdhc_a_podf", "esdhc_a_pred", MXC_CCM_CSCDR1, 11, 3); | |
126 | clk[esdhc_b_pred] = imx_clk_divider("esdhc_b_pred", "esdhc_b_sel", MXC_CCM_CSCDR1, 22, 3); | |
127 | clk[esdhc_b_podf] = imx_clk_divider("esdhc_b_podf", "esdhc_b_pred", MXC_CCM_CSCDR1, 19, 3); | |
128 | clk[esdhc_c_s] = imx_clk_mux("esdhc_c_sel", MXC_CCM_CSCMR1, 19, 1, esdhc_c_sel, ARRAY_SIZE(esdhc_c_sel)); | |
129 | clk[esdhc_d_s] = imx_clk_mux("esdhc_d_sel", MXC_CCM_CSCMR1, 18, 1, esdhc_d_sel, ARRAY_SIZE(esdhc_d_sel)); | |
130 | ||
131 | clk[emi_sel] = imx_clk_mux("emi_sel", MXC_CCM_CBCDR, 26, 1, | |
132 | emi_slow_sel, ARRAY_SIZE(emi_slow_sel)); | |
133 | clk[emi_slow_podf] = imx_clk_divider("emi_slow_podf", "emi_sel", MXC_CCM_CBCDR, 22, 3); | |
134 | clk[nfc_podf] = imx_clk_divider("nfc_podf", "emi_slow_podf", MXC_CCM_CBCDR, 13, 3); | |
135 | clk[ecspi_sel] = imx_clk_mux("ecspi_sel", MXC_CCM_CSCMR1, 4, 2, | |
136 | standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); | |
137 | clk[ecspi_pred] = imx_clk_divider("ecspi_pred", "ecspi_sel", MXC_CCM_CSCDR2, 25, 3); | |
138 | clk[ecspi_podf] = imx_clk_divider("ecspi_podf", "ecspi_pred", MXC_CCM_CSCDR2, 19, 6); | |
139 | clk[usboh3_sel] = imx_clk_mux("usboh3_sel", MXC_CCM_CSCMR1, 22, 2, | |
140 | standard_pll_sel, ARRAY_SIZE(standard_pll_sel)); | |
141 | clk[usboh3_pred] = imx_clk_divider("usboh3_pred", "usboh3_sel", MXC_CCM_CSCDR1, 8, 3); | |
142 | clk[usboh3_podf] = imx_clk_divider("usboh3_podf", "usboh3_pred", MXC_CCM_CSCDR1, 6, 2); | |
143 | clk[usb_phy_pred] = imx_clk_divider("usb_phy_pred", "pll3_sw", MXC_CCM_CDCDR, 3, 3); | |
144 | clk[usb_phy_podf] = imx_clk_divider("usb_phy_podf", "usb_phy_pred", MXC_CCM_CDCDR, 0, 3); | |
145 | clk[usb_phy_sel] = imx_clk_mux("usb_phy_sel", MXC_CCM_CSCMR1, 26, 1, | |
146 | usb_phy_sel_str, ARRAY_SIZE(usb_phy_sel_str)); | |
147 | clk[cpu_podf] = imx_clk_divider("cpu_podf", "pll1_sw", MXC_CCM_CACRR, 0, 3); | |
148 | clk[di_pred] = imx_clk_divider("di_pred", "pll3_sw", MXC_CCM_CDCDR, 6, 3); | |
149 | clk[tve_di] = imx_clk_fixed("tve_di", 65000000); /* FIXME */ | |
150 | clk[tve_s] = imx_clk_mux("tve_sel", MXC_CCM_CSCMR1, 7, 1, tve_sel, ARRAY_SIZE(tve_sel)); | |
151 | clk[iim_gate] = imx_clk_gate2("iim_gate", "ipg", MXC_CCM_CCGR0, 30); | |
152 | clk[uart1_ipg_gate] = imx_clk_gate2("uart1_ipg_gate", "ipg", MXC_CCM_CCGR1, 6); | |
153 | clk[uart1_per_gate] = imx_clk_gate2("uart1_per_gate", "uart_root", MXC_CCM_CCGR1, 8); | |
154 | clk[uart2_ipg_gate] = imx_clk_gate2("uart2_ipg_gate", "ipg", MXC_CCM_CCGR1, 10); | |
155 | clk[uart2_per_gate] = imx_clk_gate2("uart2_per_gate", "uart_root", MXC_CCM_CCGR1, 12); | |
156 | clk[uart3_ipg_gate] = imx_clk_gate2("uart3_ipg_gate", "ipg", MXC_CCM_CCGR1, 14); | |
157 | clk[uart3_per_gate] = imx_clk_gate2("uart3_per_gate", "uart_root", MXC_CCM_CCGR1, 16); | |
158 | clk[i2c1_gate] = imx_clk_gate2("i2c1_gate", "per_root", MXC_CCM_CCGR1, 18); | |
159 | clk[i2c2_gate] = imx_clk_gate2("i2c2_gate", "per_root", MXC_CCM_CCGR1, 20); | |
160 | clk[gpt_ipg_gate] = imx_clk_gate2("gpt_ipg_gate", "ipg", MXC_CCM_CCGR2, 20); | |
161 | clk[pwm1_ipg_gate] = imx_clk_gate2("pwm1_ipg_gate", "ipg", MXC_CCM_CCGR2, 10); | |
162 | clk[pwm1_hf_gate] = imx_clk_gate2("pwm1_hf_gate", "ipg", MXC_CCM_CCGR2, 12); | |
163 | clk[pwm2_ipg_gate] = imx_clk_gate2("pwm2_ipg_gate", "ipg", MXC_CCM_CCGR2, 14); | |
164 | clk[pwm2_hf_gate] = imx_clk_gate2("pwm2_hf_gate", "ipg", MXC_CCM_CCGR2, 16); | |
165 | clk[gpt_gate] = imx_clk_gate2("gpt_gate", "ipg", MXC_CCM_CCGR2, 18); | |
166 | clk[fec_gate] = imx_clk_gate2("fec_gate", "ipg", MXC_CCM_CCGR2, 24); | |
167 | clk[usboh3_gate] = imx_clk_gate2("usboh3_gate", "ipg", MXC_CCM_CCGR2, 26); | |
168 | clk[usboh3_per_gate] = imx_clk_gate2("usboh3_per_gate", "usboh3_podf", MXC_CCM_CCGR2, 28); | |
169 | clk[esdhc1_ipg_gate] = imx_clk_gate2("esdhc1_ipg_gate", "ipg", MXC_CCM_CCGR3, 0); | |
170 | clk[esdhc2_ipg_gate] = imx_clk_gate2("esdhc2_ipg_gate", "ipg", MXC_CCM_CCGR3, 4); | |
171 | clk[esdhc3_ipg_gate] = imx_clk_gate2("esdhc3_ipg_gate", "ipg", MXC_CCM_CCGR3, 8); | |
172 | clk[esdhc4_ipg_gate] = imx_clk_gate2("esdhc4_ipg_gate", "ipg", MXC_CCM_CCGR3, 12); | |
173 | clk[ssi1_ipg_gate] = imx_clk_gate2("ssi1_ipg_gate", "ipg", MXC_CCM_CCGR3, 16); | |
174 | clk[ssi2_ipg_gate] = imx_clk_gate2("ssi2_ipg_gate", "ipg", MXC_CCM_CCGR3, 20); | |
175 | clk[ssi3_ipg_gate] = imx_clk_gate2("ssi3_ipg_gate", "ipg", MXC_CCM_CCGR3, 24); | |
176 | clk[ecspi1_ipg_gate] = imx_clk_gate2("ecspi1_ipg_gate", "ipg", MXC_CCM_CCGR4, 18); | |
177 | clk[ecspi1_per_gate] = imx_clk_gate2("ecspi1_per_gate", "ecspi_podf", MXC_CCM_CCGR4, 20); | |
178 | clk[ecspi2_ipg_gate] = imx_clk_gate2("ecspi2_ipg_gate", "ipg", MXC_CCM_CCGR4, 22); | |
179 | clk[ecspi2_per_gate] = imx_clk_gate2("ecspi2_per_gate", "ecspi_podf", MXC_CCM_CCGR4, 24); | |
180 | clk[cspi_ipg_gate] = imx_clk_gate2("cspi_ipg_gate", "ipg", MXC_CCM_CCGR4, 26); | |
181 | clk[sdma_gate] = imx_clk_gate2("sdma_gate", "ipg", MXC_CCM_CCGR4, 30); | |
182 | clk[emi_fast_gate] = imx_clk_gate2("emi_fast_gate", "dummy", MXC_CCM_CCGR5, 14); | |
183 | clk[emi_slow_gate] = imx_clk_gate2("emi_slow_gate", "emi_slow_podf", MXC_CCM_CCGR5, 16); | |
184 | clk[ipu_s] = imx_clk_mux("ipu_sel", MXC_CCM_CBCMR, 6, 2, ipu_sel, ARRAY_SIZE(ipu_sel)); | |
185 | clk[ipu_gate] = imx_clk_gate2("ipu_gate", "ipu_sel", MXC_CCM_CCGR5, 10); | |
186 | clk[nfc_gate] = imx_clk_gate2("nfc_gate", "nfc_podf", MXC_CCM_CCGR5, 20); | |
187 | clk[ipu_di0_gate] = imx_clk_gate2("ipu_di0_gate", "ipu_di0_sel", MXC_CCM_CCGR6, 10); | |
188 | clk[ipu_di1_gate] = imx_clk_gate2("ipu_di1_gate", "ipu_di1_sel", MXC_CCM_CCGR6, 12); | |
189 | clk[vpu_s] = imx_clk_mux("vpu_sel", MXC_CCM_CBCMR, 14, 2, vpu_sel, ARRAY_SIZE(vpu_sel)); | |
190 | clk[vpu_gate] = imx_clk_gate2("vpu_gate", "vpu_sel", MXC_CCM_CCGR5, 6); | |
191 | clk[vpu_reference_gate] = imx_clk_gate2("vpu_reference_gate", "osc", MXC_CCM_CCGR5, 8); | |
192 | clk[uart4_ipg_gate] = imx_clk_gate2("uart4_ipg_gate", "ipg", MXC_CCM_CCGR7, 8); | |
193 | clk[uart4_per_gate] = imx_clk_gate2("uart4_per_gate", "uart_root", MXC_CCM_CCGR7, 10); | |
194 | clk[uart5_ipg_gate] = imx_clk_gate2("uart5_ipg_gate", "ipg", MXC_CCM_CCGR7, 12); | |
195 | clk[uart5_per_gate] = imx_clk_gate2("uart5_per_gate", "uart_root", MXC_CCM_CCGR7, 14); | |
196 | clk[gpc_dvfs] = imx_clk_gate2("gpc_dvfs", "dummy", MXC_CCM_CCGR5, 24); | |
197 | ||
198 | for (i = 0; i < ARRAY_SIZE(clk); i++) | |
199 | if (IS_ERR(clk[i])) | |
200 | pr_err("i.MX5 clk %d: register failed with %ld\n", | |
201 | i, PTR_ERR(clk[i])); | |
202 | ||
203 | clk_register_clkdev(clk[gpt_gate], "per", "imx-gpt.0"); | |
204 | clk_register_clkdev(clk[gpt_ipg_gate], "ipg", "imx-gpt.0"); | |
205 | clk_register_clkdev(clk[uart1_per_gate], "per", "imx21-uart.0"); | |
206 | clk_register_clkdev(clk[uart1_ipg_gate], "ipg", "imx21-uart.0"); | |
207 | clk_register_clkdev(clk[uart2_per_gate], "per", "imx21-uart.1"); | |
208 | clk_register_clkdev(clk[uart2_ipg_gate], "ipg", "imx21-uart.1"); | |
209 | clk_register_clkdev(clk[uart3_per_gate], "per", "imx21-uart.2"); | |
210 | clk_register_clkdev(clk[uart3_ipg_gate], "ipg", "imx21-uart.2"); | |
211 | clk_register_clkdev(clk[uart4_per_gate], "per", "imx21-uart.3"); | |
212 | clk_register_clkdev(clk[uart4_ipg_gate], "ipg", "imx21-uart.3"); | |
213 | clk_register_clkdev(clk[uart5_per_gate], "per", "imx21-uart.4"); | |
214 | clk_register_clkdev(clk[uart5_ipg_gate], "ipg", "imx21-uart.4"); | |
215 | clk_register_clkdev(clk[ecspi1_per_gate], "per", "imx51-ecspi.0"); | |
216 | clk_register_clkdev(clk[ecspi1_ipg_gate], "ipg", "imx51-ecspi.0"); | |
217 | clk_register_clkdev(clk[ecspi2_per_gate], "per", "imx51-ecspi.1"); | |
218 | clk_register_clkdev(clk[ecspi2_ipg_gate], "ipg", "imx51-ecspi.1"); | |
219 | clk_register_clkdev(clk[cspi_ipg_gate], NULL, "imx51-cspi.0"); | |
220 | clk_register_clkdev(clk[pwm1_ipg_gate], "pwm", "mxc_pwm.0"); | |
221 | clk_register_clkdev(clk[pwm2_ipg_gate], "pwm", "mxc_pwm.1"); | |
222 | clk_register_clkdev(clk[i2c1_gate], NULL, "imx-i2c.0"); | |
223 | clk_register_clkdev(clk[i2c2_gate], NULL, "imx-i2c.1"); | |
224 | clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.0"); | |
225 | clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.0"); | |
226 | clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.0"); | |
227 | clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.1"); | |
228 | clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.1"); | |
229 | clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.1"); | |
230 | clk_register_clkdev(clk[usboh3_per_gate], "per", "mxc-ehci.2"); | |
231 | clk_register_clkdev(clk[usboh3_gate], "ipg", "mxc-ehci.2"); | |
232 | clk_register_clkdev(clk[usboh3_gate], "ahb", "mxc-ehci.2"); | |
233 | clk_register_clkdev(clk[usboh3_per_gate], "per", "fsl-usb2-udc"); | |
234 | clk_register_clkdev(clk[usboh3_gate], "ipg", "fsl-usb2-udc"); | |
235 | clk_register_clkdev(clk[usboh3_gate], "ahb", "fsl-usb2-udc"); | |
236 | clk_register_clkdev(clk[nfc_gate], NULL, "mxc_nand"); | |
237 | clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "imx-ssi.0"); | |
238 | clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1"); | |
239 | clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "imx-ssi.2"); | |
240 | clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma"); | |
241 | clk_register_clkdev(clk[cpu_podf], "cpu", NULL); | |
242 | clk_register_clkdev(clk[iim_gate], "iim", NULL); | |
243 | clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.0"); | |
244 | clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.1"); | |
245 | clk_register_clkdev(clk[dummy], NULL, "imx-keypad"); | |
246 | clk_register_clkdev(clk[tve_gate], NULL, "imx-tve.0"); | |
247 | clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx-tve.0"); | |
248 | ||
249 | /* Set SDHC parents to be PLL2 */ | |
250 | clk_set_parent(clk[esdhc_a_sel], clk[pll2_sw]); | |
251 | clk_set_parent(clk[esdhc_b_sel], clk[pll2_sw]); | |
252 | ||
253 | /* move usb phy clk to 24MHz */ | |
254 | clk_set_parent(clk[usb_phy_sel], clk[osc]); | |
255 | ||
256 | clk_prepare_enable(clk[gpc_dvfs]); | |
257 | clk_prepare_enable(clk[ahb_max]); /* esdhc3 */ | |
258 | clk_prepare_enable(clk[aips_tz1]); | |
259 | clk_prepare_enable(clk[aips_tz2]); /* fec */ | |
260 | clk_prepare_enable(clk[spba]); | |
261 | clk_prepare_enable(clk[emi_fast_gate]); /* fec */ | |
262 | clk_prepare_enable(clk[tmax1]); | |
263 | clk_prepare_enable(clk[tmax2]); /* esdhc2, fec */ | |
264 | clk_prepare_enable(clk[tmax3]); /* esdhc1, esdhc4 */ | |
265 | } | |
266 | ||
267 | int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, | |
268 | unsigned long rate_ckih1, unsigned long rate_ckih2) | |
269 | { | |
270 | int i; | |
271 | ||
272 | clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX51_DPLL1_BASE); | |
273 | clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX51_DPLL2_BASE); | |
274 | clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX51_DPLL3_BASE); | |
275 | clk[ipu_di0_sel] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3, | |
276 | mx51_ipu_di0_sel, ARRAY_SIZE(mx51_ipu_di0_sel)); | |
277 | clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3, | |
278 | mx51_ipu_di1_sel, ARRAY_SIZE(mx51_ipu_di1_sel)); | |
279 | clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, | |
280 | mx51_tve_ext_sel, ARRAY_SIZE(mx51_tve_ext_sel)); | |
281 | clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_sel", MXC_CCM_CCGR2, 30); | |
282 | clk[tve_pred] = imx_clk_divider("tve_pred", "pll3_sw", MXC_CCM_CDCDR, 28, 3); | |
283 | clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); | |
284 | clk[esdhc2_per_gate] = imx_clk_gate2("esdhc2_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 6); | |
285 | clk[esdhc3_per_gate] = imx_clk_gate2("esdhc3_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 10); | |
286 | clk[esdhc4_per_gate] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14); | |
287 | clk[usb_phy_gate] = imx_clk_gate2("usb_phy_gate", "usb_phy_sel", MXC_CCM_CCGR2, 0); | |
288 | clk[hsi2c_gate] = imx_clk_gate2("hsi2c_gate", "ipg", MXC_CCM_CCGR1, 22); | |
289 | clk[mipi_hsc1_gate] = imx_clk_gate2("mipi_hsc1_gate", "ipg", MXC_CCM_CCGR4, 6); | |
290 | clk[mipi_hsc2_gate] = imx_clk_gate2("mipi_hsc2_gate", "ipg", MXC_CCM_CCGR4, 8); | |
291 | clk[mipi_esc_gate] = imx_clk_gate2("mipi_esc_gate", "ipg", MXC_CCM_CCGR4, 10); | |
292 | clk[mipi_hsp_gate] = imx_clk_gate2("mipi_hsp_gate", "ipg", MXC_CCM_CCGR4, 12); | |
293 | ||
294 | for (i = 0; i < ARRAY_SIZE(clk); i++) | |
295 | if (IS_ERR(clk[i])) | |
296 | pr_err("i.MX51 clk %d: register failed with %ld\n", | |
297 | i, PTR_ERR(clk[i])); | |
298 | ||
299 | mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2); | |
300 | ||
301 | clk_register_clkdev(clk[hsi2c_gate], NULL, "imx-i2c.2"); | |
302 | clk_register_clkdev(clk[mx51_mipi], "mipi_hsp", NULL); | |
303 | clk_register_clkdev(clk[vpu_gate], NULL, "imx51-vpu.0"); | |
304 | clk_register_clkdev(clk[fec_gate], NULL, "imx27-fec.0"); | |
305 | clk_register_clkdev(clk[gpc_dvfs], "gpc_dvfs", NULL); | |
306 | clk_register_clkdev(clk[ipu_gate], "bus", "imx51-ipu"); | |
307 | clk_register_clkdev(clk[ipu_di0_gate], "di0", "imx51-ipu"); | |
308 | clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx51-ipu"); | |
309 | clk_register_clkdev(clk[ipu_gate], "hsp", "imx51-ipu"); | |
310 | clk_register_clkdev(clk[usb_phy_gate], "phy", "mxc-ehci.0"); | |
311 | clk_register_clkdev(clk[esdhc1_ipg_gate], "ipg", "sdhci-esdhc-imx51.0"); | |
312 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.0"); | |
313 | clk_register_clkdev(clk[esdhc1_per_gate], "per", "sdhci-esdhc-imx51.0"); | |
314 | clk_register_clkdev(clk[esdhc2_ipg_gate], "ipg", "sdhci-esdhc-imx51.1"); | |
315 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.1"); | |
316 | clk_register_clkdev(clk[esdhc2_per_gate], "per", "sdhci-esdhc-imx51.1"); | |
317 | clk_register_clkdev(clk[esdhc3_ipg_gate], "ipg", "sdhci-esdhc-imx51.2"); | |
318 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.2"); | |
319 | clk_register_clkdev(clk[esdhc3_per_gate], "per", "sdhci-esdhc-imx51.2"); | |
320 | clk_register_clkdev(clk[esdhc4_ipg_gate], "ipg", "sdhci-esdhc-imx51.3"); | |
321 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx51.3"); | |
322 | clk_register_clkdev(clk[esdhc4_per_gate], "per", "sdhci-esdhc-imx51.3"); | |
323 | ||
324 | /* set the usboh3 parent to pll2_sw */ | |
325 | clk_set_parent(clk[usboh3_sel], clk[pll2_sw]); | |
326 | ||
327 | /* set SDHC root clock to 166.25MHZ*/ | |
328 | clk_set_rate(clk[esdhc_a_podf], 166250000); | |
329 | clk_set_rate(clk[esdhc_b_podf], 166250000); | |
330 | ||
331 | /* System timer */ | |
332 | mxc_timer_init(NULL, MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR), | |
333 | MX51_INT_GPT); | |
334 | ||
335 | clk_prepare_enable(clk[iim_gate]); | |
336 | imx_print_silicon_rev("i.MX51", mx51_revision()); | |
337 | clk_disable_unprepare(clk[iim_gate]); | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, | |
343 | unsigned long rate_ckih1, unsigned long rate_ckih2) | |
344 | { | |
345 | int i; | |
346 | unsigned long r; | |
347 | ||
348 | clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE); | |
349 | clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE); | |
350 | clk[pll3_sw] = imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE); | |
351 | clk[pll4_sw] = imx_clk_pllv2("pll4_sw", "osc", MX53_DPLL4_BASE); | |
352 | ||
353 | clk[ldb_di1_sel] = imx_clk_mux("ldb_di1_sel", MXC_CCM_CSCMR2, 9, 1, | |
354 | mx53_ldb_di1_sel, ARRAY_SIZE(mx53_ldb_di1_sel)); | |
355 | clk[ldb_di1_div_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7); | |
356 | clk[ldb_di1_div] = imx_clk_divider("ldb_di1_div", "ldb_di1_div_3_5", MXC_CCM_CSCMR2, 11, 1); | |
357 | clk[di_pll4_podf] = imx_clk_divider("di_pll4_podf", "pll4_sw", MXC_CCM_CDCDR, 16, 3); | |
358 | clk[ldb_di0_sel] = imx_clk_mux("ldb_di0_sel", MXC_CCM_CSCMR2, 8, 1, | |
359 | mx53_ldb_di0_sel, ARRAY_SIZE(mx53_ldb_di0_sel)); | |
360 | clk[ldb_di0_div_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); | |
361 | clk[ldb_di0_div] = imx_clk_divider("ldb_di0_div", "ldb_di0_div_3_5", MXC_CCM_CSCMR2, 10, 1); | |
362 | clk[ldb_di0_gate] = imx_clk_gate2("ldb_di0_gate", "ldb_di0_div", MXC_CCM_CCGR6, 28); | |
363 | clk[ldb_di1_gate] = imx_clk_gate2("ldb_di1_gate", "ldb_di1_div", MXC_CCM_CCGR6, 30); | |
364 | clk[ipu_di0_sel] = imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3, | |
365 | mx53_ipu_di0_sel, ARRAY_SIZE(mx53_ipu_di0_sel)); | |
366 | clk[ipu_di1_sel] = imx_clk_mux("ipu_di1_sel", MXC_CCM_CSCMR2, 29, 3, | |
367 | mx53_ipu_di1_sel, ARRAY_SIZE(mx53_ipu_di1_sel)); | |
368 | clk[tve_ext_sel] = imx_clk_mux("tve_ext_sel", MXC_CCM_CSCMR1, 6, 1, | |
369 | mx53_tve_ext_sel, ARRAY_SIZE(mx53_tve_ext_sel)); | |
370 | clk[tve_gate] = imx_clk_gate2("tve_gate", "tve_pred", MXC_CCM_CCGR2, 30); | |
371 | clk[tve_pred] = imx_clk_divider("tve_pred", "tve_ext_sel", MXC_CCM_CDCDR, 28, 3); | |
372 | clk[esdhc1_per_gate] = imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2); | |
373 | clk[esdhc2_per_gate] = imx_clk_gate2("esdhc2_per_gate", "esdhc_c_sel", MXC_CCM_CCGR3, 6); | |
374 | clk[esdhc3_per_gate] = imx_clk_gate2("esdhc3_per_gate", "esdhc_b_podf", MXC_CCM_CCGR3, 10); | |
375 | clk[esdhc4_per_gate] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14); | |
376 | clk[usb_phy1_gate] = imx_clk_gate2("usb_phy1_gate", "usb_phy_sel", MXC_CCM_CCGR4, 10); | |
377 | clk[usb_phy2_gate] = imx_clk_gate2("usb_phy2_gate", "usb_phy_sel", MXC_CCM_CCGR4, 12); | |
378 | clk[can2_serial_gate] = imx_clk_gate2("can2_serial_gate", "ipg", MXC_CCM_CCGR4, 6); | |
379 | clk[can2_ipg_gate] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 8); | |
380 | clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22); | |
381 | ||
382 | for (i = 0; i < ARRAY_SIZE(clk); i++) | |
383 | if (IS_ERR(clk[i])) | |
384 | pr_err("i.MX53 clk %d: register failed with %ld\n", | |
385 | i, PTR_ERR(clk[i])); | |
386 | ||
387 | mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2); | |
388 | ||
389 | clk_register_clkdev(clk[vpu_gate], NULL, "imx53-vpu.0"); | |
390 | clk_register_clkdev(clk[i2c3_gate], NULL, "imx-i2c.2"); | |
391 | clk_register_clkdev(clk[fec_gate], NULL, "imx25-fec.0"); | |
392 | clk_register_clkdev(clk[ipu_gate], "bus", "imx53-ipu"); | |
393 | clk_register_clkdev(clk[ipu_di0_gate], "di0", "imx53-ipu"); | |
394 | clk_register_clkdev(clk[ipu_di1_gate], "di1", "imx53-ipu"); | |
395 | clk_register_clkdev(clk[ipu_gate], "hsp", "imx53-ipu"); | |
396 | clk_register_clkdev(clk[usb_phy1_gate], "usb_phy1", "mxc-ehci.0"); | |
397 | clk_register_clkdev(clk[esdhc1_ipg_gate], "ipg", "sdhci-esdhc-imx53.0"); | |
398 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.0"); | |
399 | clk_register_clkdev(clk[esdhc1_per_gate], "per", "sdhci-esdhc-imx53.0"); | |
400 | clk_register_clkdev(clk[esdhc2_ipg_gate], "ipg", "sdhci-esdhc-imx53.1"); | |
401 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.1"); | |
402 | clk_register_clkdev(clk[esdhc2_per_gate], "per", "sdhci-esdhc-imx53.1"); | |
403 | clk_register_clkdev(clk[esdhc3_ipg_gate], "ipg", "sdhci-esdhc-imx53.2"); | |
404 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.2"); | |
405 | clk_register_clkdev(clk[esdhc3_per_gate], "per", "sdhci-esdhc-imx53.2"); | |
406 | clk_register_clkdev(clk[esdhc4_ipg_gate], "ipg", "sdhci-esdhc-imx53.3"); | |
407 | clk_register_clkdev(clk[dummy], "ahb", "sdhci-esdhc-imx53.3"); | |
408 | clk_register_clkdev(clk[esdhc4_per_gate], "per", "sdhci-esdhc-imx53.3"); | |
409 | ||
410 | /* set SDHC root clock to 200MHZ*/ | |
411 | clk_set_rate(clk[esdhc_a_podf], 200000000); | |
412 | clk_set_rate(clk[esdhc_b_podf], 200000000); | |
413 | ||
414 | /* System timer */ | |
415 | mxc_timer_init(NULL, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), | |
416 | MX53_INT_GPT); | |
417 | ||
418 | clk_prepare_enable(clk[iim_gate]); | |
419 | imx_print_silicon_rev("i.MX53", mx53_revision()); | |
420 | clk_disable_unprepare(clk[iim_gate]); | |
421 | ||
422 | r = clk_round_rate(clk[usboh3_per_gate], 54000000); | |
423 | clk_set_rate(clk[usboh3_per_gate], r); | |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
428 | #ifdef CONFIG_OF | |
429 | static void __init clk_get_freq_dt(unsigned long *ckil, unsigned long *osc, | |
430 | unsigned long *ckih1, unsigned long *ckih2) | |
431 | { | |
432 | struct device_node *np; | |
433 | ||
434 | /* retrieve the freqency of fixed clocks from device tree */ | |
435 | for_each_compatible_node(np, NULL, "fixed-clock") { | |
436 | u32 rate; | |
437 | if (of_property_read_u32(np, "clock-frequency", &rate)) | |
438 | continue; | |
439 | ||
440 | if (of_device_is_compatible(np, "fsl,imx-ckil")) | |
441 | *ckil = rate; | |
442 | else if (of_device_is_compatible(np, "fsl,imx-osc")) | |
443 | *osc = rate; | |
444 | else if (of_device_is_compatible(np, "fsl,imx-ckih1")) | |
445 | *ckih1 = rate; | |
446 | else if (of_device_is_compatible(np, "fsl,imx-ckih2")) | |
447 | *ckih2 = rate; | |
448 | } | |
449 | } | |
450 | ||
451 | int __init mx51_clocks_init_dt(void) | |
452 | { | |
453 | unsigned long ckil, osc, ckih1, ckih2; | |
454 | ||
455 | clk_get_freq_dt(&ckil, &osc, &ckih1, &ckih2); | |
456 | return mx51_clocks_init(ckil, osc, ckih1, ckih2); | |
457 | } | |
458 | ||
459 | int __init mx53_clocks_init_dt(void) | |
460 | { | |
461 | unsigned long ckil, osc, ckih1, ckih2; | |
462 | ||
463 | clk_get_freq_dt(&ckil, &osc, &ckih1, &ckih2); | |
464 | return mx53_clocks_init(ckil, osc, ckih1, ckih2); | |
465 | } | |
466 | #endif |