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/*
* Copyright (C) 2014 Spreadtrum Communications Inc.
*
* 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.
*
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include "sprd_otp.h"
u32 __adie_efuse_read_bits(int bit_index, int length);
struct otp_bitmap {
const char *name; /* MUST same as sc2723-regulators.dtsi */
int bits_idx, bits_len;/* field bits offset and length */
};
const struct otp_bitmap otp_bitmap[] = {
/* regulator name, block, offset, length */
//DCDC (6)
{"vddcore", BITSINDEX(0, 0), 6}, /* DCDC_CORE_NOR */
{"vddcore_ds", BITSINDEX(1, 0), 6}, /* DCDC_CORE_SLP */
{"vddarm", BITSINDEX(1, 6), 7}, /* DCDC_ARM_A */
{"vddarm_b", BITSINDEX(2, 5), 7}, /* DCDC_ARM_B */
{"vddmem", BITSINDEX(3, 6), 7}, /* DCDC_MEM */
{"vddgen", BITSINDEX(4, 5), 7}, /* DCDC_GEN */
{"vddrf", BITSINDEX(5, 4), 7},
{"vddcon", BITSINDEX(13, 1), 7}, /* DCDC_CON?DCDC_WPA? */
//LDO (20)
{"vdd25", BITSINDEX(18, 2), 6}, /* AVDD28? *//* FIXME: be care LDO_VDD2V5_OPT 0 : 1.8v, 1 : 2.8V */
{"vddkpled", BITSINDEX(19, 0), 6},
{"vddvibr", BITSINDEX(19, 6), 6},
{"vddwifipa", BITSINDEX(20, 4), 6},
{"vddcammot", BITSINDEX(21, 2), 6},
{"vddemmccore", BITSINDEX(22, 0), 6},
{"vdddcxo", BITSINDEX(22, 6), 6},
{"vddsdcore", BITSINDEX(23, 4), 6},
{"vdd28", BITSINDEX(24, 2), 6},
{"vddcama", BITSINDEX(25, 0), 6},
{"vddsim0", BITSINDEX(25, 6), 6},
{"vddsim1", BITSINDEX(25, 6), 6}, /* share with vddsim0 */
{"vddsim2", BITSINDEX(25, 6), 6}, /* share with vddsim0 */
{"vddsdio", BITSINDEX(26, 4), 6},
{"vddusb", BITSINDEX(27, 2), 6},
{"vddcamio", BITSINDEX(28, 0), 6},
{"vdd18", BITSINDEX(28, 0), 6}, /* share with vddcamio */
{"vddcamd", BITSINDEX(28, 6), 6},
{"vddrf0", BITSINDEX(29, 4), 6},
{"vddgen1", BITSINDEX(30, 2), 6},
{"vddgen0", BITSINDEX(31, 0), 6},
{0},
};
int sci_otp_get_offset(const char *name)
{
const struct otp_bitmap *map = otp_bitmap;
int offset = 0;
for (; map->name; map++) {
if (0 == strcmp(map->name, name)) {
offset -= (int)(BIT(map->bits_len) / 2); /* middle */
offset +=
(int)__adie_efuse_read_bits(map->bits_idx,
map->bits_len);
}
}
if ((0 == strcmp(name, "vddcore"))
|| (0 == strcmp(name, "vddarm"))) {
int bb_chip = (int)__adie_efuse_read_bits(BITSINDEX(31, 6), 2);
pr_debug("%s bb_chip magic %d\n", name, bb_chip);
offset += -32 + 32 * bb_chip;
}
pr_debug("%s offset %d (steps)\n", name, offset);
return offset;
}
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