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