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https://github.com/AsahiLinux/u-boot
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138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* keystone2: commands for clocks
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*
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* (C) Copyright 2012-2014
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* Texas Instruments Incorporated, <www.ti.com>
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*/
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#include <vsprintf.h>
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#include <command.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/psc_defs.h>
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struct pll_init_data cmd_pll_data = {
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.pll = MAIN_PLL,
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.pll_m = 16,
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.pll_d = 1,
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.pll_od = 2,
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};
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int do_pll_cmd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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if (argc != 5)
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goto pll_cmd_usage;
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if (strncmp(argv[1], "pa", 2) == 0)
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cmd_pll_data.pll = PASS_PLL;
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#ifndef CONFIG_SOC_K2E
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else if (strncmp(argv[1], "arm", 3) == 0)
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cmd_pll_data.pll = TETRIS_PLL;
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#endif
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#ifdef CONFIG_SOC_K2HK
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else if (strncmp(argv[1], "ddr3a", 5) == 0)
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cmd_pll_data.pll = DDR3A_PLL;
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else if (strncmp(argv[1], "ddr3b", 5) == 0)
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cmd_pll_data.pll = DDR3B_PLL;
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#else
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else if (strncmp(argv[1], "ddr3", 4) == 0)
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cmd_pll_data.pll = DDR3_PLL;
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#endif
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else
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goto pll_cmd_usage;
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cmd_pll_data.pll_m = dectoul(argv[2], NULL);
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cmd_pll_data.pll_d = dectoul(argv[3], NULL);
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cmd_pll_data.pll_od = dectoul(argv[4], NULL);
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printf("Trying to set pll %d; mult %d; div %d; OD %d\n",
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cmd_pll_data.pll, cmd_pll_data.pll_m,
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cmd_pll_data.pll_d, cmd_pll_data.pll_od);
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init_pll(&cmd_pll_data);
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return 0;
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pll_cmd_usage:
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return cmd_usage(cmdtp);
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}
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U_BOOT_CMD(
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pllset, 5, 0, do_pll_cmd,
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"set pll multiplier and pre divider",
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PLLSET_CMD_LIST " <mult> <div> <OD>\n"
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);
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int do_getclk_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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unsigned int clk;
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unsigned long freq;
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if (argc != 2)
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goto getclk_cmd_usage;
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clk = dectoul(argv[1], NULL);
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freq = ks_clk_get_rate(clk);
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if (freq)
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printf("clock index [%d] - frequency %lu\n", clk, freq);
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else
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printf("clock index [%d] Not available\n", clk);
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return 0;
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getclk_cmd_usage:
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return cmd_usage(cmdtp);
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}
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U_BOOT_CMD(
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getclk, 2, 0, do_getclk_cmd,
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"get clock rate",
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"<clk index>\n"
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"The indexes for clocks:\n"
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CLOCK_INDEXES_LIST
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);
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int do_psc_cmd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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int psc_module;
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int res;
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if (argc != 3)
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goto psc_cmd_usage;
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psc_module = dectoul(argv[1], NULL);
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if (strcmp(argv[2], "en") == 0) {
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res = psc_enable_module(psc_module);
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printf("psc_enable_module(%d) - %s\n", psc_module,
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(res) ? "ERROR" : "OK");
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return 0;
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}
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if (strcmp(argv[2], "di") == 0) {
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res = psc_disable_module(psc_module);
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printf("psc_disable_module(%d) - %s\n", psc_module,
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(res) ? "ERROR" : "OK");
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return 0;
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}
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if (strcmp(argv[2], "domain") == 0) {
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res = psc_disable_domain(psc_module);
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printf("psc_disable_domain(%d) - %s\n", psc_module,
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(res) ? "ERROR" : "OK");
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return 0;
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}
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psc_cmd_usage:
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return cmd_usage(cmdtp);
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}
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U_BOOT_CMD(
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psc, 3, 0, do_psc_cmd,
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"<enable/disable psc module os disable domain>",
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"<mod/domain index> <en|di|domain>\n"
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"Intended to control Power and Sleep Controller (PSC) domains and\n"
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"modules. The module or domain index exectly corresponds to ones\n"
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"listed in official TRM. For instance, to enable MSMC RAM clock\n"
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"domain use command: psc 14 en.\n"
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);
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