u-boot/arch/arm/mach-keystone/cmd_clock.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

137 lines
3.1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* keystone2: commands for clocks
*
* (C) Copyright 2012-2014
* Texas Instruments Incorporated, <www.ti.com>
*/
#include <common.h>
#include <command.h>
#include <asm/arch/hardware.h>
#include <asm/arch/clock.h>
#include <asm/arch/psc_defs.h>
struct pll_init_data cmd_pll_data = {
.pll = MAIN_PLL,
.pll_m = 16,
.pll_d = 1,
.pll_od = 2,
};
int do_pll_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc != 5)
goto pll_cmd_usage;
if (strncmp(argv[1], "pa", 2) == 0)
cmd_pll_data.pll = PASS_PLL;
#ifndef CONFIG_SOC_K2E
else if (strncmp(argv[1], "arm", 3) == 0)
cmd_pll_data.pll = TETRIS_PLL;
#endif
#ifdef CONFIG_SOC_K2HK
else if (strncmp(argv[1], "ddr3a", 5) == 0)
cmd_pll_data.pll = DDR3A_PLL;
else if (strncmp(argv[1], "ddr3b", 5) == 0)
cmd_pll_data.pll = DDR3B_PLL;
#else
else if (strncmp(argv[1], "ddr3", 4) == 0)
cmd_pll_data.pll = DDR3_PLL;
#endif
else
goto pll_cmd_usage;
cmd_pll_data.pll_m = simple_strtoul(argv[2], NULL, 10);
cmd_pll_data.pll_d = simple_strtoul(argv[3], NULL, 10);
cmd_pll_data.pll_od = simple_strtoul(argv[4], NULL, 10);
printf("Trying to set pll %d; mult %d; div %d; OD %d\n",
cmd_pll_data.pll, cmd_pll_data.pll_m,
cmd_pll_data.pll_d, cmd_pll_data.pll_od);
init_pll(&cmd_pll_data);
return 0;
pll_cmd_usage:
return cmd_usage(cmdtp);
}
U_BOOT_CMD(
pllset, 5, 0, do_pll_cmd,
"set pll multiplier and pre divider",
PLLSET_CMD_LIST " <mult> <div> <OD>\n"
);
int do_getclk_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned int clk;
unsigned long freq;
if (argc != 2)
goto getclk_cmd_usage;
clk = simple_strtoul(argv[1], NULL, 10);
freq = ks_clk_get_rate(clk);
if (freq)
printf("clock index [%d] - frequency %lu\n", clk, freq);
else
printf("clock index [%d] Not available\n", clk);
return 0;
getclk_cmd_usage:
return cmd_usage(cmdtp);
}
U_BOOT_CMD(
getclk, 2, 0, do_getclk_cmd,
"get clock rate",
"<clk index>\n"
"The indexes for clocks:\n"
CLOCK_INDEXES_LIST
);
int do_psc_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int psc_module;
int res;
if (argc != 3)
goto psc_cmd_usage;
psc_module = simple_strtoul(argv[1], NULL, 10);
if (strcmp(argv[2], "en") == 0) {
res = psc_enable_module(psc_module);
printf("psc_enable_module(%d) - %s\n", psc_module,
(res) ? "ERROR" : "OK");
return 0;
}
if (strcmp(argv[2], "di") == 0) {
res = psc_disable_module(psc_module);
printf("psc_disable_module(%d) - %s\n", psc_module,
(res) ? "ERROR" : "OK");
return 0;
}
if (strcmp(argv[2], "domain") == 0) {
res = psc_disable_domain(psc_module);
printf("psc_disable_domain(%d) - %s\n", psc_module,
(res) ? "ERROR" : "OK");
return 0;
}
psc_cmd_usage:
return cmd_usage(cmdtp);
}
U_BOOT_CMD(
psc, 3, 0, do_psc_cmd,
"<enable/disable psc module os disable domain>",
"<mod/domain index> <en|di|domain>\n"
"Intended to control Power and Sleep Controller (PSC) domains and\n"
"modules. The module or domain index exectly corresponds to ones\n"
"listed in official TRM. For instance, to enable MSMC RAM clock\n"
"domain use command: psc 14 en.\n"
);