1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * keystone2: commands for clocks
4 *
5 * (C) Copyright 2012-2014
6 * Texas Instruments Incorporated, <www.ti.com>
7 */
8
9 #include <common.h>
10 #include <command.h>
11 #include <asm/arch/hardware.h>
12 #include <asm/arch/clock.h>
13 #include <asm/arch/psc_defs.h>
14
15 struct pll_init_data cmd_pll_data = {
16 .pll = MAIN_PLL,
17 .pll_m = 16,
18 .pll_d = 1,
19 .pll_od = 2,
20 };
21
do_pll_cmd(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])22 int do_pll_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
23 {
24 if (argc != 5)
25 goto pll_cmd_usage;
26
27 if (strncmp(argv[1], "pa", 2) == 0)
28 cmd_pll_data.pll = PASS_PLL;
29 #ifndef CONFIG_SOC_K2E
30 else if (strncmp(argv[1], "arm", 3) == 0)
31 cmd_pll_data.pll = TETRIS_PLL;
32 #endif
33 #ifdef CONFIG_SOC_K2HK
34 else if (strncmp(argv[1], "ddr3a", 5) == 0)
35 cmd_pll_data.pll = DDR3A_PLL;
36 else if (strncmp(argv[1], "ddr3b", 5) == 0)
37 cmd_pll_data.pll = DDR3B_PLL;
38 #else
39 else if (strncmp(argv[1], "ddr3", 4) == 0)
40 cmd_pll_data.pll = DDR3_PLL;
41 #endif
42 else
43 goto pll_cmd_usage;
44
45 cmd_pll_data.pll_m = simple_strtoul(argv[2], NULL, 10);
46 cmd_pll_data.pll_d = simple_strtoul(argv[3], NULL, 10);
47 cmd_pll_data.pll_od = simple_strtoul(argv[4], NULL, 10);
48
49 printf("Trying to set pll %d; mult %d; div %d; OD %d\n",
50 cmd_pll_data.pll, cmd_pll_data.pll_m,
51 cmd_pll_data.pll_d, cmd_pll_data.pll_od);
52 init_pll(&cmd_pll_data);
53
54 return 0;
55
56 pll_cmd_usage:
57 return cmd_usage(cmdtp);
58 }
59
60 U_BOOT_CMD(
61 pllset, 5, 0, do_pll_cmd,
62 "set pll multiplier and pre divider",
63 PLLSET_CMD_LIST " <mult> <div> <OD>\n"
64 );
65
do_getclk_cmd(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])66 int do_getclk_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
67 {
68 unsigned int clk;
69 unsigned long freq;
70
71 if (argc != 2)
72 goto getclk_cmd_usage;
73
74 clk = simple_strtoul(argv[1], NULL, 10);
75
76 freq = ks_clk_get_rate(clk);
77 if (freq)
78 printf("clock index [%d] - frequency %lu\n", clk, freq);
79 else
80 printf("clock index [%d] Not available\n", clk);
81 return 0;
82
83 getclk_cmd_usage:
84 return cmd_usage(cmdtp);
85 }
86
87 U_BOOT_CMD(
88 getclk, 2, 0, do_getclk_cmd,
89 "get clock rate",
90 "<clk index>\n"
91 "The indexes for clocks:\n"
92 CLOCK_INDEXES_LIST
93 );
94
do_psc_cmd(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])95 int do_psc_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
96 {
97 int psc_module;
98 int res;
99
100 if (argc != 3)
101 goto psc_cmd_usage;
102
103 psc_module = simple_strtoul(argv[1], NULL, 10);
104 if (strcmp(argv[2], "en") == 0) {
105 res = psc_enable_module(psc_module);
106 printf("psc_enable_module(%d) - %s\n", psc_module,
107 (res) ? "ERROR" : "OK");
108 return 0;
109 }
110
111 if (strcmp(argv[2], "di") == 0) {
112 res = psc_disable_module(psc_module);
113 printf("psc_disable_module(%d) - %s\n", psc_module,
114 (res) ? "ERROR" : "OK");
115 return 0;
116 }
117
118 if (strcmp(argv[2], "domain") == 0) {
119 res = psc_disable_domain(psc_module);
120 printf("psc_disable_domain(%d) - %s\n", psc_module,
121 (res) ? "ERROR" : "OK");
122 return 0;
123 }
124
125 psc_cmd_usage:
126 return cmd_usage(cmdtp);
127 }
128
129 U_BOOT_CMD(
130 psc, 3, 0, do_psc_cmd,
131 "<enable/disable psc module os disable domain>",
132 "<mod/domain index> <en|di|domain>\n"
133 "Intended to control Power and Sleep Controller (PSC) domains and\n"
134 "modules. The module or domain index exectly corresponds to ones\n"
135 "listed in official TRM. For instance, to enable MSMC RAM clock\n"
136 "domain use command: psc 14 en.\n"
137 );
138