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(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
  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(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
  83getclk_cmd_usage:
  84        return cmd_usage(cmdtp);
  85}
  86
  87U_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
  95int 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
 125psc_cmd_usage:
 126        return cmd_usage(cmdtp);
 127}
 128
 129U_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