77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2012 by Amaury Pouly
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef OCOTP_IMX233_H
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#define OCOTP_IMX233_H
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#include "config.h"
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#include "system.h"
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#define HW_OCOTP_BASE 0x8002c000
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#define HW_OCOTP_CTRL (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x0))
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#define HW_OCOTP_CTRL__RD_BANK_OPEN (1 << 12)
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#define HW_OCOTP_CTRL__ERROR (1 << 9)
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#define HW_OCOTP_CTRL__BUSY (1 << 8)
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#define HW_OCOTP_CUSTx(x) (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x20 + 0x10 * (x)))
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#define HW_OCOTP_CRYPTOx(x) (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x60 + 0x10 * (x)))
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#define HW_OCOTP_HWCAPx(x) (*(volatile uint32_t *)(HW_OCOTP_BASE + 0xa0 + 0x10 * (x)))
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#define HW_OCOTP_SWCAP (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x100))
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#define HW_OCOTP_CUSTCAP (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x110))
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#define HW_OCOTP_OPSx(x) (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x130 + 0x10 * (x)))
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#define HW_OCOTP_UNx(x) (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x170 + 0x10 * (x)))
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#define HW_OCOTP_ROMx(x) (*(volatile uint32_t *)(HW_OCOTP_BASE + 0x1a0 + 0x10 * (x)))
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#define IMX233_NUM_OCOTP_CUST 4
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#define IMX233_NUM_OCOTP_CRYPTO 4
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#define IMX233_NUM_OCOTP_HWCAP 6
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#define IMX233_NUM_OCOTP_OPS 4
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#define IMX233_NUM_OCOTP_UN 3
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#define IMX233_NUM_OCOTP_ROM 8
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static void imx233_ocotp_open_banks(bool open)
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{
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if(open)
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{
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__REG_CLR(HW_OCOTP_CTRL) = HW_OCOTP_CTRL__ERROR;
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__REG_SET(HW_OCOTP_CTRL) = HW_OCOTP_CTRL__RD_BANK_OPEN;
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while(HW_OCOTP_CTRL & HW_OCOTP_CTRL__BUSY);
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}
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else
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__REG_CLR(HW_OCOTP_CTRL) = HW_OCOTP_CTRL__RD_BANK_OPEN;
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}
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static uint32_t imx233_ocotp_read(volatile uint32_t *reg)
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{
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imx233_ocotp_open_banks(true);
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uint32_t val = *reg;
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imx233_ocotp_open_banks(false);
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return val;
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}
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#endif /* OCOTP_IMX233_H */
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