uboot/arch/arm/mach-keystone/cmd_clock.c
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   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
  15struct pll_init_data cmd_pll_data = {
  16        .pll = MAIN_PLL,
  17        .pll_m = 16,
  18        .pll_d = 1,
  19        .pll_od = 2,
  20};
  21
  22int do_pll_cmd(struct cmd_tbl *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   = dectoul(argv[2], NULL);
  46        cmd_pll_data.pll_d   = dectoul(argv[3], NULL);
  47        cmd_pll_data.pll_od  = dectoul(argv[4], NULL);
  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
  56pll_cmd_usage:
  57        return cmd_usage(cmdtp);
  58}
  59
  60U_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
  66int do_getclk_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
  67                  char *const argv[])
  68{
  69        unsigned int clk;
  70        unsigned long freq;
  71
  72        if (argc != 2)
  73                goto getclk_cmd_usage;
  74
  75        clk = dectoul(argv[1], NULL);
  76
  77        freq = ks_clk_get_rate(clk);
  78        if (freq)
  79                printf("clock index [%d] - frequency %lu\n", clk, freq);
  80        else
  81                printf("clock index [%d] Not available\n", clk);
  82        return 0;
  83
  84getclk_cmd_usage:
  85        return cmd_usage(cmdtp);
  86}
  87
  88U_BOOT_CMD(
  89        getclk, 2,      0,      do_getclk_cmd,
  90        "get clock rate",
  91        "<clk index>\n"
  92        "The indexes for clocks:\n"
  93        CLOCK_INDEXES_LIST
  94);
  95
  96int do_psc_cmd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  97{
  98        int     psc_module;
  99        int     res;
 100
 101        if (argc != 3)
 102                goto psc_cmd_usage;
 103
 104        psc_module = dectoul(argv[1], NULL);
 105        if (strcmp(argv[2], "en") == 0) {
 106                res = psc_enable_module(psc_module);
 107                printf("psc_enable_module(%d) - %s\n", psc_module,
 108                       (res) ? "ERROR" : "OK");
 109                return 0;
 110        }
 111
 112        if (strcmp(argv[2], "di") == 0) {
 113                res = psc_disable_module(psc_module);
 114                printf("psc_disable_module(%d) - %s\n", psc_module,
 115                       (res) ? "ERROR" : "OK");
 116                return 0;
 117        }
 118
 119        if (strcmp(argv[2], "domain") == 0) {
 120                res = psc_disable_domain(psc_module);
 121                printf("psc_disable_domain(%d) - %s\n", psc_module,
 122                       (res) ? "ERROR" : "OK");
 123                return 0;
 124        }
 125
 126psc_cmd_usage:
 127        return cmd_usage(cmdtp);
 128}
 129
 130U_BOOT_CMD(
 131        psc,    3,      0,      do_psc_cmd,
 132        "<enable/disable psc module os disable domain>",
 133        "<mod/domain index> <en|di|domain>\n"
 134        "Intended to control Power and Sleep Controller (PSC) domains and\n"
 135        "modules. The module or domain index exectly corresponds to ones\n"
 136        "listed in official TRM. For instance, to enable MSMC RAM clock\n"
 137        "domain use command: psc 14 en.\n"
 138);
 139