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1// SPDX-License-Identifier: GPL-2.0
2#include <linux/clk.h>
3#include <linux/clk-provider.h>
4#include <linux/clkdev.h>
5#include <linux/err.h>
6#include <linux/of.h>
7#include <linux/of_address.h>
8#include <dt-bindings/clock/imx27-clock.h>
9#include <soc/imx/revision.h>
10#include <soc/imx/timer.h>
11#include <asm/irq.h>
12
13#include "clk.h"
14
15#define MX27_CCM_BASE_ADDR 0x10027000
16#define MX27_GPT1_BASE_ADDR 0x10003000
17#define MX27_INT_GPT1 (NR_IRQS_LEGACY + 26)
18
19static void __iomem *ccm __initdata;
20
21/* Register offsets */
22#define CCM_CSCR (ccm + 0x00)
23#define CCM_MPCTL0 (ccm + 0x04)
24#define CCM_MPCTL1 (ccm + 0x08)
25#define CCM_SPCTL0 (ccm + 0x0c)
26#define CCM_SPCTL1 (ccm + 0x10)
27#define CCM_PCDR0 (ccm + 0x18)
28#define CCM_PCDR1 (ccm + 0x1c)
29#define CCM_PCCR0 (ccm + 0x20)
30#define CCM_PCCR1 (ccm + 0x24)
31#define CCM_CCSR (ccm + 0x28)
32
33static const char *vpu_sel_clks[] = { "spll", "mpll_main2", };
34static const char *cpu_sel_clks[] = { "mpll_main2", "mpll", };
35static const char *mpll_sel_clks[] = { "fpm", "mpll_osc_sel", };
36static const char *mpll_osc_sel_clks[] = { "ckih_gate", "ckih_div1p5", };
37static const char *clko_sel_clks[] = {
38 "ckil", "fpm", "ckih_gate", "ckih_gate",
39 "ckih_gate", "mpll", "spll", "cpu_div",
40 "ahb", "ipg", "per1_div", "per2_div",
41 "per3_div", "per4_div", "ssi1_div", "ssi2_div",
42 "nfc_div", "mshc_div", "vpu_div", "60m",
43 "32k", "usb_div", "dptc",
44};
45
46static const char *ssi_sel_clks[] = { "spll_gate", "mpll", };
47
48static struct clk *clk[IMX27_CLK_MAX];
49static struct clk_onecell_data clk_data;
50
51static struct clk ** const uart_clks[] __initconst = {
52 &clk[IMX27_CLK_PER1_GATE],
53 &clk[IMX27_CLK_UART1_IPG_GATE],
54 &clk[IMX27_CLK_UART2_IPG_GATE],
55 &clk[IMX27_CLK_UART3_IPG_GATE],
56 &clk[IMX27_CLK_UART4_IPG_GATE],
57 &clk[IMX27_CLK_UART5_IPG_GATE],
58 &clk[IMX27_CLK_UART6_IPG_GATE],
59 NULL
60};
61
62static void __init _mx27_clocks_init(unsigned long fref)
63{
64 BUG_ON(!ccm);
65
66 clk[IMX27_CLK_DUMMY] = imx_clk_fixed("dummy", 0);
67 clk[IMX27_CLK_CKIH] = imx_clk_fixed("ckih", fref);
68 clk[IMX27_CLK_CKIL] = imx_clk_fixed("ckil", 32768);
69 clk[IMX27_CLK_FPM] = imx_clk_fixed_factor("fpm", "ckil", 1024, 1);
70 clk[IMX27_CLK_CKIH_DIV1P5] = imx_clk_fixed_factor("ckih_div1p5", "ckih_gate", 2, 3);
71 clk[IMX27_CLK_CKIH_GATE] = imx_clk_gate_dis("ckih_gate", "ckih", CCM_CSCR, 3);
72 clk[IMX27_CLK_MPLL_OSC_SEL] = imx_clk_mux("mpll_osc_sel", CCM_CSCR, 4, 1, mpll_osc_sel_clks, ARRAY_SIZE(mpll_osc_sel_clks));
73 clk[IMX27_CLK_MPLL_SEL] = imx_clk_mux("mpll_sel", CCM_CSCR, 16, 1, mpll_sel_clks, ARRAY_SIZE(mpll_sel_clks));
74 clk[IMX27_CLK_MPLL] = imx_clk_pllv1(IMX_PLLV1_IMX27, "mpll", "mpll_sel", CCM_MPCTL0);
75 clk[IMX27_CLK_SPLL] = imx_clk_pllv1(IMX_PLLV1_IMX27, "spll", "ckih_gate", CCM_SPCTL0);
76 clk[IMX27_CLK_SPLL_GATE] = imx_clk_gate("spll_gate", "spll", CCM_CSCR, 1);
77 clk[IMX27_CLK_MPLL_MAIN2] = imx_clk_fixed_factor("mpll_main2", "mpll", 2, 3);
78
79 if (mx27_revision() >= IMX_CHIP_REVISION_2_0) {
80 clk[IMX27_CLK_AHB] = imx_clk_divider("ahb", "mpll_main2", CCM_CSCR, 8, 2);
81 clk[IMX27_CLK_IPG] = imx_clk_fixed_factor("ipg", "ahb", 1, 2);
82 } else {
83 clk[IMX27_CLK_AHB] = imx_clk_divider("ahb", "mpll_main2", CCM_CSCR, 9, 4);
84 clk[IMX27_CLK_IPG] = imx_clk_divider("ipg", "ahb", CCM_CSCR, 8, 1);
85 }
86
87 clk[IMX27_CLK_MSHC_DIV] = imx_clk_divider("mshc_div", "ahb", CCM_PCDR0, 0, 6);
88 clk[IMX27_CLK_NFC_DIV] = imx_clk_divider("nfc_div", "ahb", CCM_PCDR0, 6, 4);
89 clk[IMX27_CLK_PER1_DIV] = imx_clk_divider("per1_div", "mpll_main2", CCM_PCDR1, 0, 6);
90 clk[IMX27_CLK_PER2_DIV] = imx_clk_divider("per2_div", "mpll_main2", CCM_PCDR1, 8, 6);
91 clk[IMX27_CLK_PER3_DIV] = imx_clk_divider("per3_div", "mpll_main2", CCM_PCDR1, 16, 6);
92 clk[IMX27_CLK_PER4_DIV] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6);
93 clk[IMX27_CLK_VPU_SEL] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks));
94 clk[IMX27_CLK_VPU_DIV] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6);
95 clk[IMX27_CLK_USB_DIV] = imx_clk_divider("usb_div", "spll_gate", CCM_CSCR, 28, 3);
96 clk[IMX27_CLK_CPU_SEL] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks));
97 clk[IMX27_CLK_CLKO_SEL] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks));
98
99 if (mx27_revision() >= IMX_CHIP_REVISION_2_0)
100 clk[IMX27_CLK_CPU_DIV] = imx_clk_divider("cpu_div", "cpu_sel", CCM_CSCR, 12, 2);
101 else
102 clk[IMX27_CLK_CPU_DIV] = imx_clk_divider("cpu_div", "cpu_sel", CCM_CSCR, 13, 3);
103
104 clk[IMX27_CLK_CLKO_DIV] = imx_clk_divider("clko_div", "clko_sel", CCM_PCDR0, 22, 3);
105 clk[IMX27_CLK_SSI1_SEL] = imx_clk_mux("ssi1_sel", CCM_CSCR, 22, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks));
106 clk[IMX27_CLK_SSI2_SEL] = imx_clk_mux("ssi2_sel", CCM_CSCR, 23, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks));
107 clk[IMX27_CLK_SSI1_DIV] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6);
108 clk[IMX27_CLK_SSI2_DIV] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6);
109 clk[IMX27_CLK_CLKO_EN] = imx_clk_gate("clko_en", "clko_div", CCM_PCCR0, 0);
110 clk[IMX27_CLK_SSI2_IPG_GATE] = imx_clk_gate("ssi2_ipg_gate", "ipg", CCM_PCCR0, 0);
111 clk[IMX27_CLK_SSI1_IPG_GATE] = imx_clk_gate("ssi1_ipg_gate", "ipg", CCM_PCCR0, 1);
112 clk[IMX27_CLK_SLCDC_IPG_GATE] = imx_clk_gate("slcdc_ipg_gate", "ipg", CCM_PCCR0, 2);
113 clk[IMX27_CLK_SDHC3_IPG_GATE] = imx_clk_gate("sdhc3_ipg_gate", "ipg", CCM_PCCR0, 3);
114 clk[IMX27_CLK_SDHC2_IPG_GATE] = imx_clk_gate("sdhc2_ipg_gate", "ipg", CCM_PCCR0, 4);
115 clk[IMX27_CLK_SDHC1_IPG_GATE] = imx_clk_gate("sdhc1_ipg_gate", "ipg", CCM_PCCR0, 5);
116 clk[IMX27_CLK_SCC_IPG_GATE] = imx_clk_gate("scc_ipg_gate", "ipg", CCM_PCCR0, 6);
117 clk[IMX27_CLK_SAHARA_IPG_GATE] = imx_clk_gate("sahara_ipg_gate", "ipg", CCM_PCCR0, 7);
118 clk[IMX27_CLK_RTIC_IPG_GATE] = imx_clk_gate("rtic_ipg_gate", "ipg", CCM_PCCR0, 8);
119 clk[IMX27_CLK_RTC_IPG_GATE] = imx_clk_gate("rtc_ipg_gate", "ipg", CCM_PCCR0, 9);
120 clk[IMX27_CLK_PWM_IPG_GATE] = imx_clk_gate("pwm_ipg_gate", "ipg", CCM_PCCR0, 11);
121 clk[IMX27_CLK_OWIRE_IPG_GATE] = imx_clk_gate("owire_ipg_gate", "ipg", CCM_PCCR0, 12);
122 clk[IMX27_CLK_MSHC_IPG_GATE] = imx_clk_gate("mshc_ipg_gate", "ipg", CCM_PCCR0, 13);
123 clk[IMX27_CLK_LCDC_IPG_GATE] = imx_clk_gate("lcdc_ipg_gate", "ipg", CCM_PCCR0, 14);
124 clk[IMX27_CLK_KPP_IPG_GATE] = imx_clk_gate("kpp_ipg_gate", "ipg", CCM_PCCR0, 15);
125 clk[IMX27_CLK_IIM_IPG_GATE] = imx_clk_gate("iim_ipg_gate", "ipg", CCM_PCCR0, 16);
126 clk[IMX27_CLK_I2C2_IPG_GATE] = imx_clk_gate("i2c2_ipg_gate", "ipg", CCM_PCCR0, 17);
127 clk[IMX27_CLK_I2C1_IPG_GATE] = imx_clk_gate("i2c1_ipg_gate", "ipg", CCM_PCCR0, 18);
128 clk[IMX27_CLK_GPT6_IPG_GATE] = imx_clk_gate("gpt6_ipg_gate", "ipg", CCM_PCCR0, 19);
129 clk[IMX27_CLK_GPT5_IPG_GATE] = imx_clk_gate("gpt5_ipg_gate", "ipg", CCM_PCCR0, 20);
130 clk[IMX27_CLK_GPT4_IPG_GATE] = imx_clk_gate("gpt4_ipg_gate", "ipg", CCM_PCCR0, 21);
131 clk[IMX27_CLK_GPT3_IPG_GATE] = imx_clk_gate("gpt3_ipg_gate", "ipg", CCM_PCCR0, 22);
132 clk[IMX27_CLK_GPT2_IPG_GATE] = imx_clk_gate("gpt2_ipg_gate", "ipg", CCM_PCCR0, 23);
133 clk[IMX27_CLK_GPT1_IPG_GATE] = imx_clk_gate("gpt1_ipg_gate", "ipg", CCM_PCCR0, 24);
134 clk[IMX27_CLK_GPIO_IPG_GATE] = imx_clk_gate("gpio_ipg_gate", "ipg", CCM_PCCR0, 25);
135 clk[IMX27_CLK_FEC_IPG_GATE] = imx_clk_gate("fec_ipg_gate", "ipg", CCM_PCCR0, 26);
136 clk[IMX27_CLK_EMMA_IPG_GATE] = imx_clk_gate("emma_ipg_gate", "ipg", CCM_PCCR0, 27);
137 clk[IMX27_CLK_DMA_IPG_GATE] = imx_clk_gate("dma_ipg_gate", "ipg", CCM_PCCR0, 28);
138 clk[IMX27_CLK_CSPI3_IPG_GATE] = imx_clk_gate("cspi3_ipg_gate", "ipg", CCM_PCCR0, 29);
139 clk[IMX27_CLK_CSPI2_IPG_GATE] = imx_clk_gate("cspi2_ipg_gate", "ipg", CCM_PCCR0, 30);
140 clk[IMX27_CLK_CSPI1_IPG_GATE] = imx_clk_gate("cspi1_ipg_gate", "ipg", CCM_PCCR0, 31);
141 clk[IMX27_CLK_MSHC_BAUD_GATE] = imx_clk_gate("mshc_baud_gate", "mshc_div", CCM_PCCR1, 2);
142 clk[IMX27_CLK_NFC_BAUD_GATE] = imx_clk_gate("nfc_baud_gate", "nfc_div", CCM_PCCR1, 3);
143 clk[IMX27_CLK_SSI2_BAUD_GATE] = imx_clk_gate("ssi2_baud_gate", "ssi2_div", CCM_PCCR1, 4);
144 clk[IMX27_CLK_SSI1_BAUD_GATE] = imx_clk_gate("ssi1_baud_gate", "ssi1_div", CCM_PCCR1, 5);
145 clk[IMX27_CLK_VPU_BAUD_GATE] = imx_clk_gate("vpu_baud_gate", "vpu_div", CCM_PCCR1, 6);
146 clk[IMX27_CLK_PER4_GATE] = imx_clk_gate("per4_gate", "per4_div", CCM_PCCR1, 7);
147 clk[IMX27_CLK_PER3_GATE] = imx_clk_gate("per3_gate", "per3_div", CCM_PCCR1, 8);
148 clk[IMX27_CLK_PER2_GATE] = imx_clk_gate("per2_gate", "per2_div", CCM_PCCR1, 9);
149 clk[IMX27_CLK_PER1_GATE] = imx_clk_gate("per1_gate", "per1_div", CCM_PCCR1, 10);
150 clk[IMX27_CLK_USB_AHB_GATE] = imx_clk_gate("usb_ahb_gate", "ahb", CCM_PCCR1, 11);
151 clk[IMX27_CLK_SLCDC_AHB_GATE] = imx_clk_gate("slcdc_ahb_gate", "ahb", CCM_PCCR1, 12);
152 clk[IMX27_CLK_SAHARA_AHB_GATE] = imx_clk_gate("sahara_ahb_gate", "ahb", CCM_PCCR1, 13);
153 clk[IMX27_CLK_RTIC_AHB_GATE] = imx_clk_gate("rtic_ahb_gate", "ahb", CCM_PCCR1, 14);
154 clk[IMX27_CLK_LCDC_AHB_GATE] = imx_clk_gate("lcdc_ahb_gate", "ahb", CCM_PCCR1, 15);
155 clk[IMX27_CLK_VPU_AHB_GATE] = imx_clk_gate("vpu_ahb_gate", "ahb", CCM_PCCR1, 16);
156 clk[IMX27_CLK_FEC_AHB_GATE] = imx_clk_gate("fec_ahb_gate", "ahb", CCM_PCCR1, 17);
157 clk[IMX27_CLK_EMMA_AHB_GATE] = imx_clk_gate("emma_ahb_gate", "ahb", CCM_PCCR1, 18);
158 clk[IMX27_CLK_EMI_AHB_GATE] = imx_clk_gate("emi_ahb_gate", "ahb", CCM_PCCR1, 19);
159 clk[IMX27_CLK_DMA_AHB_GATE] = imx_clk_gate("dma_ahb_gate", "ahb", CCM_PCCR1, 20);
160 clk[IMX27_CLK_CSI_AHB_GATE] = imx_clk_gate("csi_ahb_gate", "ahb", CCM_PCCR1, 21);
161 clk[IMX27_CLK_BROM_AHB_GATE] = imx_clk_gate("brom_ahb_gate", "ahb", CCM_PCCR1, 22);
162 clk[IMX27_CLK_ATA_AHB_GATE] = imx_clk_gate("ata_ahb_gate", "ahb", CCM_PCCR1, 23);
163 clk[IMX27_CLK_WDOG_IPG_GATE] = imx_clk_gate("wdog_ipg_gate", "ipg", CCM_PCCR1, 24);
164 clk[IMX27_CLK_USB_IPG_GATE] = imx_clk_gate("usb_ipg_gate", "ipg", CCM_PCCR1, 25);
165 clk[IMX27_CLK_UART6_IPG_GATE] = imx_clk_gate("uart6_ipg_gate", "ipg", CCM_PCCR1, 26);
166 clk[IMX27_CLK_UART5_IPG_GATE] = imx_clk_gate("uart5_ipg_gate", "ipg", CCM_PCCR1, 27);
167 clk[IMX27_CLK_UART4_IPG_GATE] = imx_clk_gate("uart4_ipg_gate", "ipg", CCM_PCCR1, 28);
168 clk[IMX27_CLK_UART3_IPG_GATE] = imx_clk_gate("uart3_ipg_gate", "ipg", CCM_PCCR1, 29);
169 clk[IMX27_CLK_UART2_IPG_GATE] = imx_clk_gate("uart2_ipg_gate", "ipg", CCM_PCCR1, 30);
170 clk[IMX27_CLK_UART1_IPG_GATE] = imx_clk_gate("uart1_ipg_gate", "ipg", CCM_PCCR1, 31);
171
172 imx_check_clocks(clk, ARRAY_SIZE(clk));
173
174 clk_register_clkdev(clk[IMX27_CLK_CPU_DIV], NULL, "cpu0");
175
176 clk_prepare_enable(clk[IMX27_CLK_EMI_AHB_GATE]);
177
178 imx_register_uart_clocks(uart_clks);
179
180 imx_print_silicon_rev("i.MX27", mx27_revision());
181}
182
183int __init mx27_clocks_init(unsigned long fref)
184{
185 ccm = ioremap(MX27_CCM_BASE_ADDR, SZ_4K);
186
187 _mx27_clocks_init(fref);
188
189 clk_register_clkdev(clk[IMX27_CLK_UART1_IPG_GATE], "ipg", "imx21-uart.0");
190 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.0");
191 clk_register_clkdev(clk[IMX27_CLK_UART2_IPG_GATE], "ipg", "imx21-uart.1");
192 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.1");
193 clk_register_clkdev(clk[IMX27_CLK_UART3_IPG_GATE], "ipg", "imx21-uart.2");
194 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.2");
195 clk_register_clkdev(clk[IMX27_CLK_UART4_IPG_GATE], "ipg", "imx21-uart.3");
196 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.3");
197 clk_register_clkdev(clk[IMX27_CLK_UART5_IPG_GATE], "ipg", "imx21-uart.4");
198 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.4");
199 clk_register_clkdev(clk[IMX27_CLK_UART6_IPG_GATE], "ipg", "imx21-uart.5");
200 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx21-uart.5");
201 clk_register_clkdev(clk[IMX27_CLK_GPT1_IPG_GATE], "ipg", "imx-gpt.0");
202 clk_register_clkdev(clk[IMX27_CLK_PER1_GATE], "per", "imx-gpt.0");
203 clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx21-mmc.0");
204 clk_register_clkdev(clk[IMX27_CLK_SDHC1_IPG_GATE], "ipg", "imx21-mmc.0");
205 clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx21-mmc.1");
206 clk_register_clkdev(clk[IMX27_CLK_SDHC2_IPG_GATE], "ipg", "imx21-mmc.1");
207 clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx21-mmc.2");
208 clk_register_clkdev(clk[IMX27_CLK_SDHC2_IPG_GATE], "ipg", "imx21-mmc.2");
209 clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx27-cspi.0");
210 clk_register_clkdev(clk[IMX27_CLK_CSPI1_IPG_GATE], "ipg", "imx27-cspi.0");
211 clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx27-cspi.1");
212 clk_register_clkdev(clk[IMX27_CLK_CSPI2_IPG_GATE], "ipg", "imx27-cspi.1");
213 clk_register_clkdev(clk[IMX27_CLK_PER2_GATE], "per", "imx27-cspi.2");
214 clk_register_clkdev(clk[IMX27_CLK_CSPI3_IPG_GATE], "ipg", "imx27-cspi.2");
215 clk_register_clkdev(clk[IMX27_CLK_PER3_GATE], "per", "imx21-fb.0");
216 clk_register_clkdev(clk[IMX27_CLK_LCDC_IPG_GATE], "ipg", "imx21-fb.0");
217 clk_register_clkdev(clk[IMX27_CLK_LCDC_AHB_GATE], "ahb", "imx21-fb.0");
218 clk_register_clkdev(clk[IMX27_CLK_CSI_AHB_GATE], "ahb", "imx27-camera.0");
219 clk_register_clkdev(clk[IMX27_CLK_PER4_GATE], "per", "imx27-camera.0");
220 clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "imx-udc-mx27");
221 clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "imx-udc-mx27");
222 clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "imx-udc-mx27");
223 clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "mxc-ehci.0");
224 clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "mxc-ehci.0");
225 clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "mxc-ehci.0");
226 clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "mxc-ehci.1");
227 clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "mxc-ehci.1");
228 clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "mxc-ehci.1");
229 clk_register_clkdev(clk[IMX27_CLK_USB_DIV], "per", "mxc-ehci.2");
230 clk_register_clkdev(clk[IMX27_CLK_USB_IPG_GATE], "ipg", "mxc-ehci.2");
231 clk_register_clkdev(clk[IMX27_CLK_USB_AHB_GATE], "ahb", "mxc-ehci.2");
232 clk_register_clkdev(clk[IMX27_CLK_SSI1_IPG_GATE], NULL, "imx-ssi.0");
233 clk_register_clkdev(clk[IMX27_CLK_SSI2_IPG_GATE], NULL, "imx-ssi.1");
234 clk_register_clkdev(clk[IMX27_CLK_NFC_BAUD_GATE], NULL, "imx27-nand.0");
235 clk_register_clkdev(clk[IMX27_CLK_VPU_BAUD_GATE], "per", "coda-imx27.0");
236 clk_register_clkdev(clk[IMX27_CLK_VPU_AHB_GATE], "ahb", "coda-imx27.0");
237 clk_register_clkdev(clk[IMX27_CLK_DMA_AHB_GATE], "ahb", "imx27-dma");
238 clk_register_clkdev(clk[IMX27_CLK_DMA_IPG_GATE], "ipg", "imx27-dma");
239 clk_register_clkdev(clk[IMX27_CLK_FEC_IPG_GATE], "ipg", "imx27-fec.0");
240 clk_register_clkdev(clk[IMX27_CLK_FEC_AHB_GATE], "ahb", "imx27-fec.0");
241 clk_register_clkdev(clk[IMX27_CLK_WDOG_IPG_GATE], NULL, "imx2-wdt.0");
242 clk_register_clkdev(clk[IMX27_CLK_I2C1_IPG_GATE], NULL, "imx21-i2c.0");
243 clk_register_clkdev(clk[IMX27_CLK_I2C2_IPG_GATE], NULL, "imx21-i2c.1");
244 clk_register_clkdev(clk[IMX27_CLK_OWIRE_IPG_GATE], NULL, "mxc_w1.0");
245 clk_register_clkdev(clk[IMX27_CLK_KPP_IPG_GATE], NULL, "imx-keypad");
246 clk_register_clkdev(clk[IMX27_CLK_EMMA_AHB_GATE], "emma-ahb", "imx27-camera.0");
247 clk_register_clkdev(clk[IMX27_CLK_EMMA_IPG_GATE], "emma-ipg", "imx27-camera.0");
248 clk_register_clkdev(clk[IMX27_CLK_EMMA_AHB_GATE], "ahb", "m2m-emmaprp.0");
249 clk_register_clkdev(clk[IMX27_CLK_EMMA_IPG_GATE], "ipg", "m2m-emmaprp.0");
250
251 mxc_timer_init(MX27_GPT1_BASE_ADDR, MX27_INT_GPT1, GPT_TYPE_IMX21);
252
253 return 0;
254}
255
256static void __init mx27_clocks_init_dt(struct device_node *np)
257{
258 struct device_node *refnp;
259 u32 fref = 26000000; /* default */
260
261 for_each_compatible_node(refnp, NULL, "fixed-clock") {
262 if (!of_device_is_compatible(refnp, "fsl,imx-osc26m"))
263 continue;
264
265 if (!of_property_read_u32(refnp, "clock-frequency", &fref)) {
266 of_node_put(refnp);
267 break;
268 }
269 }
270
271 ccm = of_iomap(np, 0);
272
273 _mx27_clocks_init(fref);
274
275 clk_data.clks = clk;
276 clk_data.clk_num = ARRAY_SIZE(clk);
277 of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
278}
279CLK_OF_DECLARE(imx27_ccm, "fsl,imx27-ccm", mx27_clocks_init_dt);