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 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 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 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