1 /* 2 * keystone2: commands for clocks 3 * 4 * (C) Copyright 2012-2014 5 * Texas Instruments Incorporated, <www.ti.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 #include <command.h> 12 #include <asm/arch/hardware.h> 13 #include <asm/arch/clock.h> 14 #include <asm/arch/psc_defs.h> 15 16 struct pll_init_data cmd_pll_data = { 17 .pll = MAIN_PLL, 18 .pll_m = 16, 19 .pll_d = 1, 20 .pll_od = 2, 21 }; 22 23 int do_pll_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 24 { 25 if (argc != 5) 26 goto pll_cmd_usage; 27 28 if (strncmp(argv[1], "pa", 2) == 0) 29 cmd_pll_data.pll = PASS_PLL; 30 #ifndef CONFIG_SOC_K2E 31 else if (strncmp(argv[1], "arm", 3) == 0) 32 cmd_pll_data.pll = TETRIS_PLL; 33 #endif 34 #ifdef CONFIG_SOC_K2HK 35 else if (strncmp(argv[1], "ddr3a", 5) == 0) 36 cmd_pll_data.pll = DDR3A_PLL; 37 else if (strncmp(argv[1], "ddr3b", 5) == 0) 38 cmd_pll_data.pll = DDR3B_PLL; 39 #else 40 else if (strncmp(argv[1], "ddr3", 4) == 0) 41 cmd_pll_data.pll = DDR3_PLL; 42 #endif 43 else 44 goto pll_cmd_usage; 45 46 cmd_pll_data.pll_m = simple_strtoul(argv[2], NULL, 10); 47 cmd_pll_data.pll_d = simple_strtoul(argv[3], NULL, 10); 48 cmd_pll_data.pll_od = simple_strtoul(argv[4], NULL, 10); 49 50 printf("Trying to set pll %d; mult %d; div %d; OD %d\n", 51 cmd_pll_data.pll, cmd_pll_data.pll_m, 52 cmd_pll_data.pll_d, cmd_pll_data.pll_od); 53 init_pll(&cmd_pll_data); 54 55 return 0; 56 57 pll_cmd_usage: 58 return cmd_usage(cmdtp); 59 } 60 61 U_BOOT_CMD( 62 pllset, 5, 0, do_pll_cmd, 63 "set pll multiplier and pre divider", 64 PLLSET_CMD_LIST " <mult> <div> <OD>\n" 65 ); 66 67 int do_getclk_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 68 { 69 unsigned int clk; 70 unsigned int freq; 71 72 if (argc != 2) 73 goto getclk_cmd_usage; 74 75 clk = simple_strtoul(argv[1], NULL, 10); 76 77 freq = clk_get_rate(clk); 78 printf("clock index [%d] - frequency %u\n", clk, freq); 79 return 0; 80 81 getclk_cmd_usage: 82 return cmd_usage(cmdtp); 83 } 84 85 U_BOOT_CMD( 86 getclk, 2, 0, do_getclk_cmd, 87 "get clock rate", 88 "<clk index>\n" 89 "The indexes for clocks:\n" 90 CLOCK_INDEXES_LIST 91 ); 92 93 int do_psc_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 94 { 95 int psc_module; 96 int res; 97 98 if (argc != 3) 99 goto psc_cmd_usage; 100 101 psc_module = simple_strtoul(argv[1], NULL, 10); 102 if (strcmp(argv[2], "en") == 0) { 103 res = psc_enable_module(psc_module); 104 printf("psc_enable_module(%d) - %s\n", psc_module, 105 (res) ? "ERROR" : "OK"); 106 return 0; 107 } 108 109 if (strcmp(argv[2], "di") == 0) { 110 res = psc_disable_module(psc_module); 111 printf("psc_disable_module(%d) - %s\n", psc_module, 112 (res) ? "ERROR" : "OK"); 113 return 0; 114 } 115 116 if (strcmp(argv[2], "domain") == 0) { 117 res = psc_disable_domain(psc_module); 118 printf("psc_disable_domain(%d) - %s\n", psc_module, 119 (res) ? "ERROR" : "OK"); 120 return 0; 121 } 122 123 psc_cmd_usage: 124 return cmd_usage(cmdtp); 125 } 126 127 U_BOOT_CMD( 128 psc, 3, 0, do_psc_cmd, 129 "<enable/disable psc module os disable domain>", 130 "<mod/domain index> <en|di|domain>\n" 131 "Intended to control Power and Sleep Controller (PSC) domains and\n" 132 "modules. The module or domain index exectly corresponds to ones\n" 133 "listed in official TRM. For instance, to enable MSMC RAM clock\n" 134 "domain use command: psc 14 en.\n" 135 ); 136