2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License as
4 * published by the Free Software Foundation version 2.
7 #include <linux/kernel.h>
9 #include <linux/clk-provider.h>
10 #include <linux/clk/ti.h>
11 #include <linux/of_platform.h>
15 static struct ti_dt_clk dm814_clks[] = {
16 DT_CLK(NULL, "devosc_ck", "devosc_ck"),
17 DT_CLK(NULL, "mpu_ck", "mpu_ck"),
18 DT_CLK(NULL, "sysclk4_ck", "sysclk4_ck"),
19 DT_CLK(NULL, "sysclk5_ck", "sysclk5_ck"),
20 DT_CLK(NULL, "sysclk6_ck", "sysclk6_ck"),
21 DT_CLK(NULL, "sysclk8_ck", "sysclk8_ck"),
22 DT_CLK(NULL, "sysclk10_ck", "sysclk10_ck"),
23 DT_CLK(NULL, "sysclk18_ck", "sysclk18_ck"),
24 DT_CLK(NULL, "timer_sys_ck", "devosc_ck"),
25 DT_CLK(NULL, "timer1_fck", "timer1_fck"),
26 DT_CLK(NULL, "timer2_fck", "timer2_fck"),
27 DT_CLK(NULL, "cpsw_125mhz_gclk", "cpsw_125mhz_gclk"),
28 DT_CLK(NULL, "cpsw_cpts_rft_clk", "cpsw_cpts_rft_clk"),
29 { .node_name = NULL },
32 static bool timer_clocks_initialized;
34 static int __init dm814x_adpll_early_init(void)
36 struct device_node *np;
38 if (!timer_clocks_initialized)
41 np = of_find_node_by_name(NULL, "pllss");
43 pr_err("Could not find node for plls\n");
47 of_platform_populate(np, NULL, NULL, NULL);
51 core_initcall(dm814x_adpll_early_init);
53 static const char * const init_clocks[] = {
54 "pll040clkout", /* MPU 481c5040.adpll.clkout */
55 "pll290clkout", /* DDR 481c5290.adpll.clkout */
58 static int __init dm814x_adpll_enable_init_clocks(void)
62 if (!timer_clocks_initialized)
65 for (i = 0; i < ARRAY_SIZE(init_clocks); i++) {
68 clock = clk_get(NULL, init_clocks[i]);
69 if (WARN(IS_ERR(clock), "could not find init clock %s\n",
72 err = clk_prepare_enable(clock);
73 if (WARN(err, "could not enable init clock %s\n",
80 postcore_initcall(dm814x_adpll_enable_init_clocks);
82 int __init dm814x_dt_clk_init(void)
84 ti_dt_clocks_register(dm814_clks);
85 omap2_clk_disable_autoidle_all();
86 omap2_clk_enable_init_clocks(NULL, 0);
87 timer_clocks_initialized = true;