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/*
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* (C) Copyright 2010
* Stefano Babic, DENX Software Engineering, sbabic@denx.de
*
* (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <linux/types.h>
#include <pmic.h>
static struct pmic pmic;
int check_reg(u32 reg)
{
if (reg >= pmic.number_of_regs) {
printf("<reg num> = %d is invalid. Should be less than %d\n",
reg, pmic.number_of_regs);
return -1;
}
return 0;
}
int pmic_set_output(struct pmic *p, u32 reg, int out, int on)
{
u32 val;
if (pmic_reg_read(p, reg, &val))
return -1;
if (on)
val |= out;
else
val &= ~out;
if (pmic_reg_write(p, reg, val))
return -1;
return 0;
}
static void pmic_show_info(struct pmic *p)
{
printf("PMIC: %s\n", p->name);
}
static void pmic_dump(struct pmic *p)
{
int i, ret;
u32 val;
pmic_show_info(p);
for (i = 0; i < p->number_of_regs; i++) {
ret = pmic_reg_read(p, i, &val);
if (ret)
puts("PMIC: Registers dump failed\n");
if (!(i % 8))
printf("\n0x%02x: ", i);
printf("%08x ", val);
}
puts("\n");
}
struct pmic *get_pmic(void)
{
return &pmic;
}
int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
u32 ret, reg, val;
char *cmd;
struct pmic *p = &pmic;
/* at least two arguments please */
if (argc < 2)
return cmd_usage(cmdtp);
cmd = argv[1];
if (strcmp(cmd, "dump") == 0) {
pmic_dump(p);
return 0;
}
if (strcmp(cmd, "read") == 0) {
if (argc < 3)
return cmd_usage(cmdtp);
reg = simple_strtoul(argv[2], NULL, 16);
ret = pmic_reg_read(p, reg, &val);
if (ret)
puts("PMIC: Register read failed\n");
printf("\n0x%02x: 0x%08x\n", reg, val);
return 0;
}
if (strcmp(cmd, "write") == 0) {
if (argc < 4)
return cmd_usage(cmdtp);
reg = simple_strtoul(argv[2], NULL, 16);
val = simple_strtoul(argv[3], NULL, 16);
pmic_reg_write(p, reg, val);
return 0;
}
/* No subcommand found */
return 1;
}
U_BOOT_CMD(
pmic, CONFIG_SYS_MAXARGS, 1, do_pmic,
"PMIC",
"dump - dump PMIC registers\n"
"pmic read <reg> - read register\n"
"pmic write <reg> <value> - write register"
);
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