mirror of
https://github.com/outbackdingo/mt76.git
synced 2026-10-24 13:26:48 +00:00
Lorenzo BianconiandFelix Fietkau
844daebc0d
Move mt76x2_efuse_read and mt76x2_get_efuse_data in mt76x02_eeprom.c in order to be reused in mt76x0 driver for eeprom parsing Signed-off-by: Lorenzo Bianconi <[email protected]> Signed-off-by: Felix Fietkau <[email protected]>
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
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* Copyright (C) 2016 Felix Fietkau <[email protected]>
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* Copyright (C) 2018 Lorenzo Bianconi <[email protected]>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <asm/unaligned.h>
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#include "mt76.h"
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#include "mt76x02_eeprom.h"
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#include "mt76x02_regs.h"
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static int
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mt76x02_efuse_read(struct mt76_dev *dev, u16 addr, u8 *data,
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enum mt76x02_eeprom_modes mode)
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{
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u32 val;
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int i;
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val = __mt76_rr(dev, MT_EFUSE_CTRL);
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val &= ~(MT_EFUSE_CTRL_AIN |
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MT_EFUSE_CTRL_MODE);
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val |= FIELD_PREP(MT_EFUSE_CTRL_AIN, addr & ~0xf);
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val |= FIELD_PREP(MT_EFUSE_CTRL_MODE, mode);
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val |= MT_EFUSE_CTRL_KICK;
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__mt76_wr(dev, MT_EFUSE_CTRL, val);
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if (!__mt76_poll_msec(dev, MT_EFUSE_CTRL, MT_EFUSE_CTRL_KICK,
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0, 1000))
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return -ETIMEDOUT;
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udelay(2);
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val = __mt76_rr(dev, MT_EFUSE_CTRL);
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if ((val & MT_EFUSE_CTRL_AOUT) == MT_EFUSE_CTRL_AOUT) {
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memset(data, 0xff, 16);
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return 0;
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}
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for (i = 0; i < 4; i++) {
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val = __mt76_rr(dev, MT_EFUSE_DATA(i));
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put_unaligned_le32(val, data + 4 * i);
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}
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return 0;
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}
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int mt76x02_get_efuse_data(struct mt76_dev *dev, u16 base, void *buf,
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int len, enum mt76x02_eeprom_modes mode)
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{
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int ret, i;
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for (i = 0; i + 16 <= len; i += 16) {
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ret = mt76x02_efuse_read(dev, base + i, buf + i, mode);
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if (ret)
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return ret;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(mt76x02_get_efuse_data);
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