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authorTero Kristo <t-kristo@ti.com>2014-02-24 10:52:57 -0500
committerTero Kristo <t-kristo@ti.com>2014-05-28 05:30:16 -0400
commitbe67c3bf382c591d8267e0ef12d80041854731d9 (patch)
treec48660ce665bd1ba253cd4d0f04f1689d2d54003 /drivers/clk
parentde742570745e12b53c70130ace958f2a60044000 (diff)
CLK: TI: OMAP2: add clock init support
Adds support for registering the alias clocks, boot time clock-enable list and disabling autoidle of clocks. Signed-off-by: Tero Kristo <t-kristo@ti.com>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/ti/Makefile1
-rw-r--r--drivers/clk/ti/clk-2xxx.c254
2 files changed, 255 insertions, 0 deletions
diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index 4319d4031aa3..4afeaed9e9ba 100644
--- a/drivers/clk/ti/Makefile
+++ b/drivers/clk/ti/Makefile
@@ -3,6 +3,7 @@ obj-y += clk.o autoidle.o clockdomain.o
3clk-common = dpll.o composite.o divider.o gate.o \ 3clk-common = dpll.o composite.o divider.o gate.o \
4 fixed-factor.o mux.o apll.o 4 fixed-factor.o mux.o apll.o
5obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o 5obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
6obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
6obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o clk-3xxx.o 7obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o clk-3xxx.o
7obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o 8obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o
8obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o 9obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o
diff --git a/drivers/clk/ti/clk-2xxx.c b/drivers/clk/ti/clk-2xxx.c
new file mode 100644
index 000000000000..f6400fb5ee3e
--- /dev/null
+++ b/drivers/clk/ti/clk-2xxx.c
@@ -0,0 +1,254 @@
1/*
2 * OMAP2 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-provider.h>
20#include <linux/clk/ti.h>
21
22static struct ti_dt_clk omap2xxx_clks[] = {
23 DT_CLK(NULL, "func_32k_ck", "func_32k_ck"),
24 DT_CLK(NULL, "secure_32k_ck", "secure_32k_ck"),
25 DT_CLK(NULL, "virt_12m_ck", "virt_12m_ck"),
26 DT_CLK(NULL, "virt_13m_ck", "virt_13m_ck"),
27 DT_CLK(NULL, "virt_19200000_ck", "virt_19200000_ck"),
28 DT_CLK(NULL, "virt_26m_ck", "virt_26m_ck"),
29 DT_CLK(NULL, "aplls_clkin_ck", "aplls_clkin_ck"),
30 DT_CLK(NULL, "aplls_clkin_x2_ck", "aplls_clkin_x2_ck"),
31 DT_CLK(NULL, "osc_ck", "osc_ck"),
32 DT_CLK(NULL, "sys_ck", "sys_ck"),
33 DT_CLK(NULL, "alt_ck", "alt_ck"),
34 DT_CLK(NULL, "mcbsp_clks", "mcbsp_clks"),
35 DT_CLK(NULL, "dpll_ck", "dpll_ck"),
36 DT_CLK(NULL, "apll96_ck", "apll96_ck"),
37 DT_CLK(NULL, "apll54_ck", "apll54_ck"),
38 DT_CLK(NULL, "func_54m_ck", "func_54m_ck"),
39 DT_CLK(NULL, "core_ck", "core_ck"),
40 DT_CLK(NULL, "func_96m_ck", "func_96m_ck"),
41 DT_CLK(NULL, "func_48m_ck", "func_48m_ck"),
42 DT_CLK(NULL, "func_12m_ck", "func_12m_ck"),
43 DT_CLK(NULL, "sys_clkout_src", "sys_clkout_src"),
44 DT_CLK(NULL, "sys_clkout", "sys_clkout"),
45 DT_CLK(NULL, "emul_ck", "emul_ck"),
46 DT_CLK(NULL, "mpu_ck", "mpu_ck"),
47 DT_CLK(NULL, "dsp_fck", "dsp_fck"),
48 DT_CLK(NULL, "gfx_3d_fck", "gfx_3d_fck"),
49 DT_CLK(NULL, "gfx_2d_fck", "gfx_2d_fck"),
50 DT_CLK(NULL, "gfx_ick", "gfx_ick"),
51 DT_CLK("omapdss_dss", "ick", "dss_ick"),
52 DT_CLK(NULL, "dss_ick", "dss_ick"),
53 DT_CLK(NULL, "dss1_fck", "dss1_fck"),
54 DT_CLK(NULL, "dss2_fck", "dss2_fck"),
55 DT_CLK(NULL, "dss_54m_fck", "dss_54m_fck"),
56 DT_CLK(NULL, "core_l3_ck", "core_l3_ck"),
57 DT_CLK(NULL, "ssi_fck", "ssi_ssr_sst_fck"),
58 DT_CLK(NULL, "usb_l4_ick", "usb_l4_ick"),
59 DT_CLK(NULL, "l4_ck", "l4_ck"),
60 DT_CLK(NULL, "ssi_l4_ick", "ssi_l4_ick"),
61 DT_CLK(NULL, "gpt1_ick", "gpt1_ick"),
62 DT_CLK(NULL, "gpt1_fck", "gpt1_fck"),
63 DT_CLK(NULL, "gpt2_ick", "gpt2_ick"),
64 DT_CLK(NULL, "gpt2_fck", "gpt2_fck"),
65 DT_CLK(NULL, "gpt3_ick", "gpt3_ick"),
66 DT_CLK(NULL, "gpt3_fck", "gpt3_fck"),
67 DT_CLK(NULL, "gpt4_ick", "gpt4_ick"),
68 DT_CLK(NULL, "gpt4_fck", "gpt4_fck"),
69 DT_CLK(NULL, "gpt5_ick", "gpt5_ick"),
70 DT_CLK(NULL, "gpt5_fck", "gpt5_fck"),
71 DT_CLK(NULL, "gpt6_ick", "gpt6_ick"),
72 DT_CLK(NULL, "gpt6_fck", "gpt6_fck"),
73 DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
74 DT_CLK(NULL, "gpt7_fck", "gpt7_fck"),
75 DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
76 DT_CLK(NULL, "gpt8_fck", "gpt8_fck"),
77 DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
78 DT_CLK(NULL, "gpt9_fck", "gpt9_fck"),
79 DT_CLK(NULL, "gpt10_ick", "gpt10_ick"),
80 DT_CLK(NULL, "gpt10_fck", "gpt10_fck"),
81 DT_CLK(NULL, "gpt11_ick", "gpt11_ick"),
82 DT_CLK(NULL, "gpt11_fck", "gpt11_fck"),
83 DT_CLK(NULL, "gpt12_ick", "gpt12_ick"),
84 DT_CLK(NULL, "gpt12_fck", "gpt12_fck"),
85 DT_CLK("omap-mcbsp.1", "ick", "mcbsp1_ick"),
86 DT_CLK(NULL, "mcbsp1_ick", "mcbsp1_ick"),
87 DT_CLK(NULL, "mcbsp1_fck", "mcbsp1_fck"),
88 DT_CLK("omap-mcbsp.2", "ick", "mcbsp2_ick"),
89 DT_CLK(NULL, "mcbsp2_ick", "mcbsp2_ick"),
90 DT_CLK(NULL, "mcbsp2_fck", "mcbsp2_fck"),
91 DT_CLK("omap2_mcspi.1", "ick", "mcspi1_ick"),
92 DT_CLK(NULL, "mcspi1_ick", "mcspi1_ick"),
93 DT_CLK(NULL, "mcspi1_fck", "mcspi1_fck"),
94 DT_CLK("omap2_mcspi.2", "ick", "mcspi2_ick"),
95 DT_CLK(NULL, "mcspi2_ick", "mcspi2_ick"),
96 DT_CLK(NULL, "mcspi2_fck", "mcspi2_fck"),
97 DT_CLK(NULL, "uart1_ick", "uart1_ick"),
98 DT_CLK(NULL, "uart1_fck", "uart1_fck"),
99 DT_CLK(NULL, "uart2_ick", "uart2_ick"),
100 DT_CLK(NULL, "uart2_fck", "uart2_fck"),
101 DT_CLK(NULL, "uart3_ick", "uart3_ick"),
102 DT_CLK(NULL, "uart3_fck", "uart3_fck"),
103 DT_CLK(NULL, "gpios_ick", "gpios_ick"),
104 DT_CLK(NULL, "gpios_fck", "gpios_fck"),
105 DT_CLK("omap_wdt", "ick", "mpu_wdt_ick"),
106 DT_CLK(NULL, "mpu_wdt_ick", "mpu_wdt_ick"),
107 DT_CLK(NULL, "mpu_wdt_fck", "mpu_wdt_fck"),
108 DT_CLK(NULL, "sync_32k_ick", "sync_32k_ick"),
109 DT_CLK(NULL, "wdt1_ick", "wdt1_ick"),
110 DT_CLK(NULL, "omapctrl_ick", "omapctrl_ick"),
111 DT_CLK("omap24xxcam", "fck", "cam_fck"),
112 DT_CLK(NULL, "cam_fck", "cam_fck"),
113 DT_CLK("omap24xxcam", "ick", "cam_ick"),
114 DT_CLK(NULL, "cam_ick", "cam_ick"),
115 DT_CLK(NULL, "mailboxes_ick", "mailboxes_ick"),
116 DT_CLK(NULL, "wdt4_ick", "wdt4_ick"),
117 DT_CLK(NULL, "wdt4_fck", "wdt4_fck"),
118 DT_CLK(NULL, "mspro_ick", "mspro_ick"),
119 DT_CLK(NULL, "mspro_fck", "mspro_fck"),
120 DT_CLK(NULL, "fac_ick", "fac_ick"),
121 DT_CLK(NULL, "fac_fck", "fac_fck"),
122 DT_CLK("omap_hdq.0", "ick", "hdq_ick"),
123 DT_CLK(NULL, "hdq_ick", "hdq_ick"),
124 DT_CLK("omap_hdq.0", "fck", "hdq_fck"),
125 DT_CLK(NULL, "hdq_fck", "hdq_fck"),
126 DT_CLK("omap_i2c.1", "ick", "i2c1_ick"),
127 DT_CLK(NULL, "i2c1_ick", "i2c1_ick"),
128 DT_CLK("omap_i2c.2", "ick", "i2c2_ick"),
129 DT_CLK(NULL, "i2c2_ick", "i2c2_ick"),
130 DT_CLK(NULL, "gpmc_fck", "gpmc_fck"),
131 DT_CLK(NULL, "sdma_fck", "sdma_fck"),
132 DT_CLK(NULL, "sdma_ick", "sdma_ick"),
133 DT_CLK(NULL, "sdrc_ick", "sdrc_ick"),
134 DT_CLK(NULL, "des_ick", "des_ick"),
135 DT_CLK("omap-sham", "ick", "sha_ick"),
136 DT_CLK(NULL, "sha_ick", "sha_ick"),
137 DT_CLK("omap_rng", "ick", "rng_ick"),
138 DT_CLK(NULL, "rng_ick", "rng_ick"),
139 DT_CLK("omap-aes", "ick", "aes_ick"),
140 DT_CLK(NULL, "aes_ick", "aes_ick"),
141 DT_CLK(NULL, "pka_ick", "pka_ick"),
142 DT_CLK(NULL, "usb_fck", "usb_fck"),
143 DT_CLK(NULL, "timer_32k_ck", "func_32k_ck"),
144 DT_CLK(NULL, "timer_sys_ck", "sys_ck"),
145 DT_CLK(NULL, "timer_ext_ck", "alt_ck"),
146 { .node_name = NULL },
147};
148
149static struct ti_dt_clk omap2420_clks[] = {
150 DT_CLK(NULL, "sys_clkout2_src", "sys_clkout2_src"),
151 DT_CLK(NULL, "sys_clkout2", "sys_clkout2"),
152 DT_CLK(NULL, "dsp_ick", "dsp_ick"),
153 DT_CLK(NULL, "iva1_ifck", "iva1_ifck"),
154 DT_CLK(NULL, "iva1_mpu_int_ifck", "iva1_mpu_int_ifck"),
155 DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
156 DT_CLK(NULL, "wdt3_fck", "wdt3_fck"),
157 DT_CLK("mmci-omap.0", "ick", "mmc_ick"),
158 DT_CLK(NULL, "mmc_ick", "mmc_ick"),
159 DT_CLK("mmci-omap.0", "fck", "mmc_fck"),
160 DT_CLK(NULL, "mmc_fck", "mmc_fck"),
161 DT_CLK(NULL, "eac_ick", "eac_ick"),
162 DT_CLK(NULL, "eac_fck", "eac_fck"),
163 DT_CLK(NULL, "i2c1_fck", "i2c1_fck"),
164 DT_CLK(NULL, "i2c2_fck", "i2c2_fck"),
165 DT_CLK(NULL, "vlynq_ick", "vlynq_ick"),
166 DT_CLK(NULL, "vlynq_fck", "vlynq_fck"),
167 DT_CLK("musb-hdrc", "fck", "osc_ck"),
168 { .node_name = NULL },
169};
170
171static struct ti_dt_clk omap2430_clks[] = {
172 DT_CLK("twl", "fck", "osc_ck"),
173 DT_CLK(NULL, "iva2_1_ick", "iva2_1_ick"),
174 DT_CLK(NULL, "mdm_ick", "mdm_ick"),
175 DT_CLK(NULL, "mdm_osc_ck", "mdm_osc_ck"),
176 DT_CLK("omap-mcbsp.3", "ick", "mcbsp3_ick"),
177 DT_CLK(NULL, "mcbsp3_ick", "mcbsp3_ick"),
178 DT_CLK(NULL, "mcbsp3_fck", "mcbsp3_fck"),
179 DT_CLK("omap-mcbsp.4", "ick", "mcbsp4_ick"),
180 DT_CLK(NULL, "mcbsp4_ick", "mcbsp4_ick"),
181 DT_CLK(NULL, "mcbsp4_fck", "mcbsp4_fck"),
182 DT_CLK("omap-mcbsp.5", "ick", "mcbsp5_ick"),
183 DT_CLK(NULL, "mcbsp5_ick", "mcbsp5_ick"),
184 DT_CLK(NULL, "mcbsp5_fck", "mcbsp5_fck"),
185 DT_CLK("omap2_mcspi.3", "ick", "mcspi3_ick"),
186 DT_CLK(NULL, "mcspi3_ick", "mcspi3_ick"),
187 DT_CLK(NULL, "mcspi3_fck", "mcspi3_fck"),
188 DT_CLK(NULL, "icr_ick", "icr_ick"),
189 DT_CLK(NULL, "i2chs1_fck", "i2chs1_fck"),
190 DT_CLK(NULL, "i2chs2_fck", "i2chs2_fck"),
191 DT_CLK("musb-omap2430", "ick", "usbhs_ick"),
192 DT_CLK(NULL, "usbhs_ick", "usbhs_ick"),
193 DT_CLK("omap_hsmmc.0", "ick", "mmchs1_ick"),
194 DT_CLK(NULL, "mmchs1_ick", "mmchs1_ick"),
195 DT_CLK(NULL, "mmchs1_fck", "mmchs1_fck"),
196 DT_CLK("omap_hsmmc.1", "ick", "mmchs2_ick"),
197 DT_CLK(NULL, "mmchs2_ick", "mmchs2_ick"),
198 DT_CLK(NULL, "mmchs2_fck", "mmchs2_fck"),
199 DT_CLK(NULL, "gpio5_ick", "gpio5_ick"),
200 DT_CLK(NULL, "gpio5_fck", "gpio5_fck"),
201 DT_CLK(NULL, "mdm_intc_ick", "mdm_intc_ick"),
202 DT_CLK("omap_hsmmc.0", "mmchsdb_fck", "mmchsdb1_fck"),
203 DT_CLK(NULL, "mmchsdb1_fck", "mmchsdb1_fck"),
204 DT_CLK("omap_hsmmc.1", "mmchsdb_fck", "mmchsdb2_fck"),
205 DT_CLK(NULL, "mmchsdb2_fck", "mmchsdb2_fck"),
206 { .node_name = NULL },
207};
208
209static const char *enable_init_clks[] = {
210 "apll96_ck",
211 "apll54_ck",
212 "sync_32k_ick",
213 "omapctrl_ick",
214 "gpmc_fck",
215 "sdrc_ick",
216};
217
218enum {
219 OMAP2_SOC_OMAP2420,
220 OMAP2_SOC_OMAP2430,
221};
222
223static int __init omap2xxx_dt_clk_init(int soc_type)
224{
225 ti_dt_clocks_register(omap2xxx_clks);
226
227 if (soc_type == OMAP2_SOC_OMAP2420)
228 ti_dt_clocks_register(omap2420_clks);
229 else
230 ti_dt_clocks_register(omap2430_clks);
231
232 omap2_clk_disable_autoidle_all();
233
234 omap2_clk_enable_init_clocks(enable_init_clks,
235 ARRAY_SIZE(enable_init_clks));
236
237 pr_info("Clocking rate (Crystal/DPLL/MPU): %ld.%01ld/%ld/%ld MHz\n",
238 (clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 1000000),
239 (clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 100000) % 10,
240 (clk_get_rate(clk_get_sys(NULL, "dpll_ck")) / 1000000),
241 (clk_get_rate(clk_get_sys(NULL, "mpu_ck")) / 1000000));
242
243 return 0;
244}
245
246int __init omap2420_dt_clk_init(void)
247{
248 return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2420);
249}
250
251int __init omap2430_dt_clk_init(void)
252{
253 return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2430);
254}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 15:48:14 -0500