519 lines
15 KiB
C
519 lines
15 KiB
C
/*
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* OMAP cpu type detection
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*
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* Copyright (C) 2004, 2008 Nokia Corporation
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*
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* Copyright (C) 2009-11 Texas Instruments.
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*
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* Written by Tony Lindgren <tony.lindgren@nokia.com>
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*
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* Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
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* Added DRA7xxx specific defines - Sricharan R<r.sricharan@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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, MA 02111-1307 USA
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*
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*/
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#include "omap24xx.h"
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#include "omap34xx.h"
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#include "omap44xx.h"
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#include "ti81xx.h"
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#include "am33xx.h"
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#include "omap54xx.h"
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#ifndef __ASSEMBLY__
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#include <linux/bitops.h>
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#include <linux/of.h>
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/*
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* OMAP2+ is always defined as ARCH_MULTIPLATFORM in Kconfig
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*/
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#undef MULTI_OMAP2
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#define MULTI_OMAP2
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/*
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* Omap device type i.e. EMU/HS/TST/GP/BAD
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*/
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#define OMAP2_DEVICE_TYPE_TEST 0
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#define OMAP2_DEVICE_TYPE_EMU 1
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#define OMAP2_DEVICE_TYPE_SEC 2
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#define OMAP2_DEVICE_TYPE_GP 3
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#define OMAP2_DEVICE_TYPE_BAD 4
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int omap_type(void);
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/*
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* omap_rev bits:
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* SoC id bits (0730, 1510, 1710, 2422...) [31:16]
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* SoC revision (See _REV_ defined in cpu.h) [15:08]
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* SoC class bits (15xx, 16xx, 24xx, 34xx...) [07:00]
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*/
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unsigned int omap_rev(void);
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static inline int soc_is_omap(void)
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{
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return omap_rev() != 0;
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}
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/*
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* Get the SoC revision for OMAP devices
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*/
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#define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff)
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/*
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* Macros to group OMAP into cpu classes.
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* These can be used in most places.
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* soc_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430
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* soc_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423
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* soc_is_omap243x(): True for OMAP2430
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* soc_is_omap343x(): True for OMAP3430
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* soc_is_omap443x(): True for OMAP4430
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* soc_is_omap446x(): True for OMAP4460
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* soc_is_omap447x(): True for OMAP4470
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* soc_is_omap543x(): True for OMAP5430, OMAP5432
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*/
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#define GET_OMAP_CLASS (omap_rev() & 0xff)
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#define IS_OMAP_CLASS(class, id) \
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static inline int is_omap ##class (void) \
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{ \
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return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
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}
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#define GET_AM_CLASS ((omap_rev() >> 24) & 0xff)
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#define IS_AM_CLASS(class, id) \
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static inline int is_am ##class (void) \
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{ \
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return (GET_AM_CLASS == (id)) ? 1 : 0; \
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}
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#define GET_TI_CLASS ((omap_rev() >> 24) & 0xff)
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#define IS_TI_CLASS(class, id) \
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static inline int is_ti ##class (void) \
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{ \
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return (GET_TI_CLASS == (id)) ? 1 : 0; \
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}
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#define GET_DRA_CLASS ((omap_rev() >> 24) & 0xff)
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#define IS_DRA_CLASS(class, id) \
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static inline int is_dra ##class (void) \
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{ \
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return (GET_DRA_CLASS == (id)) ? 1 : 0; \
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}
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#define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
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#define IS_OMAP_SUBCLASS(subclass, id) \
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static inline int is_omap ##subclass (void) \
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{ \
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return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
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}
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#define IS_TI_SUBCLASS(subclass, id) \
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static inline int is_ti ##subclass (void) \
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{ \
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return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
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}
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#define IS_AM_SUBCLASS(subclass, id) \
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static inline int is_am ##subclass (void) \
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{ \
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return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
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}
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#define IS_DRA_SUBCLASS(subclass, id) \
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static inline int is_dra ##subclass (void) \
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{ \
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return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
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}
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#define GET_DRA_PACKAGE (omap_rev() & 0xff)
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#define IS_DRA_SUBCLASS_PACKAGE(subclass, package, id) \
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static inline int is_dra ##subclass ##_ ##package (void) \
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{ \
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return (is_dra ##subclass () && GET_DRA_PACKAGE == id) ? 1 : 0; \
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}
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IS_OMAP_CLASS(24xx, 0x24)
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IS_OMAP_CLASS(34xx, 0x34)
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IS_OMAP_CLASS(44xx, 0x44)
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IS_AM_CLASS(35xx, 0x35)
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IS_OMAP_CLASS(54xx, 0x54)
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IS_AM_CLASS(33xx, 0x33)
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IS_AM_CLASS(43xx, 0x43)
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IS_TI_CLASS(81xx, 0x81)
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IS_DRA_CLASS(7xx, 0x7)
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IS_OMAP_SUBCLASS(242x, 0x242)
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IS_OMAP_SUBCLASS(243x, 0x243)
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IS_OMAP_SUBCLASS(343x, 0x343)
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IS_OMAP_SUBCLASS(363x, 0x363)
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IS_OMAP_SUBCLASS(443x, 0x443)
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IS_OMAP_SUBCLASS(446x, 0x446)
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IS_OMAP_SUBCLASS(447x, 0x447)
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IS_OMAP_SUBCLASS(543x, 0x543)
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IS_TI_SUBCLASS(816x, 0x816)
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IS_TI_SUBCLASS(814x, 0x814)
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IS_AM_SUBCLASS(335x, 0x335)
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IS_AM_SUBCLASS(437x, 0x437)
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IS_DRA_SUBCLASS(76x, 0x76)
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IS_DRA_SUBCLASS_PACKAGE(76x, abz, 2)
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IS_DRA_SUBCLASS_PACKAGE(76x, acd, 3)
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IS_DRA_SUBCLASS(75x, 0x75)
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IS_DRA_SUBCLASS(72x, 0x72)
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#define soc_is_ti81xx() 0
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#define soc_is_ti816x() 0
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#define soc_is_ti814x() 0
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#define soc_is_am35xx() 0
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#define soc_is_am33xx() 0
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#define soc_is_am335x() 0
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#define soc_is_am43xx() 0
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#define soc_is_am437x() 0
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#define soc_is_omap44xx() 0
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#define soc_is_omap443x() 0
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#define soc_is_omap446x() 0
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#define soc_is_omap447x() 0
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#define soc_is_omap54xx() 0
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#define soc_is_omap543x() 0
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#define soc_is_dra7xx() 0
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#define soc_is_dra76x() 0
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#define soc_is_dra74x() 0
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#define soc_is_dra72x() 0
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#if defined(CONFIG_ARCH_OMAP2)
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# define soc_is_omap24xx() is_omap24xx()
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#else
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# define soc_is_omap24xx() 0
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#endif
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#if defined(CONFIG_SOC_OMAP2420)
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# define soc_is_omap242x() is_omap242x()
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#else
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# define soc_is_omap242x() 0
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#endif
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#if defined(CONFIG_SOC_OMAP2430)
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# define soc_is_omap243x() is_omap243x()
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#else
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# define soc_is_omap243x() 0
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#endif
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#if defined(CONFIG_ARCH_OMAP3)
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# define soc_is_omap34xx() is_omap34xx()
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# define soc_is_omap343x() is_omap343x()
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#else
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# define soc_is_omap34xx() 0
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# define soc_is_omap343x() 0
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#endif
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/*
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* Macros to detect individual cpu types.
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* These are only rarely needed.
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* soc_is_omap2420(): True for OMAP2420
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* soc_is_omap2422(): True for OMAP2422
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* soc_is_omap2423(): True for OMAP2423
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* soc_is_omap2430(): True for OMAP2430
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* soc_is_omap3430(): True for OMAP3430
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*/
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#define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
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#define IS_OMAP_TYPE(type, id) \
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static inline int is_omap ##type (void) \
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{ \
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return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
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}
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IS_OMAP_TYPE(2420, 0x2420)
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IS_OMAP_TYPE(2422, 0x2422)
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IS_OMAP_TYPE(2423, 0x2423)
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IS_OMAP_TYPE(2430, 0x2430)
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IS_OMAP_TYPE(3430, 0x3430)
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#define soc_is_omap2420() 0
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#define soc_is_omap2422() 0
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#define soc_is_omap2423() 0
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#define soc_is_omap2430() 0
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#define soc_is_omap3430() 0
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#define soc_is_omap3630() 0
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#define soc_is_omap5430() 0
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/* These are needed for the common code */
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#define soc_is_omap7xx() 0
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#define soc_is_omap15xx() 0
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#define soc_is_omap16xx() 0
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#define soc_is_omap1510() 0
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#define soc_is_omap1610() 0
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#define soc_is_omap1611() 0
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#define soc_is_omap1621() 0
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#define soc_is_omap1710() 0
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#define cpu_class_is_omap1() 0
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#define cpu_class_is_omap2() 1
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#if defined(CONFIG_ARCH_OMAP2)
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# undef soc_is_omap2420
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# undef soc_is_omap2422
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# undef soc_is_omap2423
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# undef soc_is_omap2430
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# define soc_is_omap2420() is_omap2420()
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# define soc_is_omap2422() is_omap2422()
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# define soc_is_omap2423() is_omap2423()
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# define soc_is_omap2430() is_omap2430()
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#endif
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#if defined(CONFIG_ARCH_OMAP3)
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# undef soc_is_omap3430
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# undef soc_is_ti81xx
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# undef soc_is_ti816x
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# undef soc_is_ti814x
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# undef soc_is_am35xx
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# define soc_is_omap3430() is_omap3430()
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# undef soc_is_omap3630
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# define soc_is_omap3630() is_omap363x()
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# define soc_is_ti81xx() is_ti81xx()
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# define soc_is_ti816x() is_ti816x()
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# define soc_is_ti814x() is_ti814x()
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# define soc_is_am35xx() is_am35xx()
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#endif
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# if defined(CONFIG_SOC_AM33XX)
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# undef soc_is_am33xx
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# undef soc_is_am335x
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# define soc_is_am33xx() is_am33xx()
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# define soc_is_am335x() is_am335x()
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#endif
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#ifdef CONFIG_SOC_AM43XX
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# undef soc_is_am43xx
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# undef soc_is_am437x
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# define soc_is_am43xx() is_am43xx()
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# define soc_is_am437x() is_am437x()
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#endif
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# if defined(CONFIG_ARCH_OMAP4)
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# undef soc_is_omap44xx
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# undef soc_is_omap443x
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# undef soc_is_omap446x
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# undef soc_is_omap447x
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# define soc_is_omap44xx() is_omap44xx()
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# define soc_is_omap443x() is_omap443x()
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# define soc_is_omap446x() is_omap446x()
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# define soc_is_omap447x() is_omap447x()
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# endif
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# if defined(CONFIG_SOC_OMAP5)
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# undef soc_is_omap54xx
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# undef soc_is_omap543x
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# define soc_is_omap54xx() is_omap54xx()
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# define soc_is_omap543x() is_omap543x()
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#endif
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#if defined(CONFIG_SOC_DRA7XX)
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#undef soc_is_dra7xx
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#undef soc_is_dra76x
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#undef soc_is_dra76x_abz
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#undef soc_is_dra76x_acd
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#undef soc_is_dra74x
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#undef soc_is_dra72x
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#define soc_is_dra7xx() is_dra7xx()
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#define soc_is_dra76x() is_dra76x()
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#define soc_is_dra76x_abz() is_dra76x_abz()
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#define soc_is_dra76x_acd() is_dra76x_acd()
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#define soc_is_dra74x() is_dra75x()
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#define soc_is_dra72x() is_dra72x()
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#endif
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/* Various silicon revisions for omap2 */
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#define OMAP242X_CLASS 0x24200024
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#define OMAP2420_REV_ES1_0 OMAP242X_CLASS
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#define OMAP2420_REV_ES2_0 (OMAP242X_CLASS | (0x1 << 8))
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#define OMAP243X_CLASS 0x24300024
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#define OMAP2430_REV_ES1_0 OMAP243X_CLASS
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#define OMAP343X_CLASS 0x34300034
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#define OMAP3430_REV_ES1_0 OMAP343X_CLASS
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#define OMAP3430_REV_ES2_0 (OMAP343X_CLASS | (0x1 << 8))
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#define OMAP3430_REV_ES2_1 (OMAP343X_CLASS | (0x2 << 8))
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#define OMAP3430_REV_ES3_0 (OMAP343X_CLASS | (0x3 << 8))
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#define OMAP3430_REV_ES3_1 (OMAP343X_CLASS | (0x4 << 8))
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#define OMAP3430_REV_ES3_1_2 (OMAP343X_CLASS | (0x5 << 8))
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#define OMAP363X_CLASS 0x36300034
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#define OMAP3630_REV_ES1_0 OMAP363X_CLASS
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#define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8))
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#define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8))
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#define TI816X_CLASS 0x81600081
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#define TI8168_REV_ES1_0 TI816X_CLASS
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#define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8))
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#define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8))
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#define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8))
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#define TI814X_CLASS 0x81400081
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#define TI8148_REV_ES1_0 TI814X_CLASS
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#define TI8148_REV_ES2_0 (TI814X_CLASS | (0x1 << 8))
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#define TI8148_REV_ES2_1 (TI814X_CLASS | (0x2 << 8))
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#define AM35XX_CLASS 0x35170034
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#define AM35XX_REV_ES1_0 AM35XX_CLASS
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#define AM35XX_REV_ES1_1 (AM35XX_CLASS | (0x1 << 8))
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#define AM335X_CLASS 0x33500033
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#define AM335X_REV_ES1_0 AM335X_CLASS
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#define AM335X_REV_ES2_0 (AM335X_CLASS | (0x1 << 8))
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#define AM335X_REV_ES2_1 (AM335X_CLASS | (0x2 << 8))
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#define AM437X_CLASS 0x43700000
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#define AM437X_REV_ES1_0 (AM437X_CLASS | (0x10 << 8))
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#define AM437X_REV_ES1_1 (AM437X_CLASS | (0x11 << 8))
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#define AM437X_REV_ES1_2 (AM437X_CLASS | (0x12 << 8))
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#define OMAP443X_CLASS 0x44300044
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#define OMAP4430_REV_ES1_0 (OMAP443X_CLASS | (0x10 << 8))
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#define OMAP4430_REV_ES2_0 (OMAP443X_CLASS | (0x20 << 8))
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#define OMAP4430_REV_ES2_1 (OMAP443X_CLASS | (0x21 << 8))
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#define OMAP4430_REV_ES2_2 (OMAP443X_CLASS | (0x22 << 8))
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#define OMAP4430_REV_ES2_3 (OMAP443X_CLASS | (0x23 << 8))
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#define OMAP446X_CLASS 0x44600044
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#define OMAP4460_REV_ES1_0 (OMAP446X_CLASS | (0x10 << 8))
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#define OMAP4460_REV_ES1_1 (OMAP446X_CLASS | (0x11 << 8))
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#define OMAP447X_CLASS 0x44700044
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#define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8))
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#define OMAP54XX_CLASS 0x54000054
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#define OMAP5430_REV_ES2_0 (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
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#define OMAP5432_REV_ES2_0 (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
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#define DRA7XX_CLASS 0x07000000
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#define DRA762_REV_ES1_0 (DRA7XX_CLASS | (0x62 << 16) | (0x10 << 8))
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#define DRA762_ABZ_REV_ES1_0 (DRA762_REV_ES1_0 | (2 << 0))
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#define DRA762_ACD_REV_ES1_0 (DRA762_REV_ES1_0 | (3 << 0))
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#define DRA752_REV_ES1_0 (DRA7XX_CLASS | (0x52 << 16) | (0x10 << 8))
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#define DRA752_REV_ES1_1 (DRA7XX_CLASS | (0x52 << 16) | (0x11 << 8))
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#define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
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#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
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#define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8))
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#define DRA722_REV_ES2_1 (DRA7XX_CLASS | (0x22 << 16) | (0x21 << 8))
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void omap2xxx_check_revision(void);
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void omap3xxx_check_revision(void);
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void omap4xxx_check_revision(void);
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void omap5xxx_check_revision(void);
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void dra7xxx_check_revision(void);
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void omap3xxx_check_features(void);
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void ti81xx_check_features(void);
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void am33xx_check_features(void);
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void omap4xxx_check_features(void);
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/*
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* Runtime detection of OMAP3 features
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*
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* OMAP3_HAS_IO_CHAIN_CTRL: Some later members of the OMAP3 chip
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* family have OS-level control over the I/O chain clock. This is
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* to avoid a window during which wakeups could potentially be lost
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* during powerdomain transitions. If this bit is set, it
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* indicates that the chip does support OS-level control of this
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* feature.
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*/
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extern u32 omap_features;
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#define OMAP3_HAS_L2CACHE BIT(0)
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#define OMAP3_HAS_IVA BIT(1)
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#define OMAP3_HAS_SGX BIT(2)
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#define OMAP3_HAS_NEON BIT(3)
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#define OMAP3_HAS_ISP BIT(4)
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#define OMAP3_HAS_192MHZ_CLK BIT(5)
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#define OMAP3_HAS_IO_WAKEUP BIT(6)
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#define OMAP3_HAS_SDRC BIT(7)
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#define OMAP3_HAS_IO_CHAIN_CTRL BIT(8)
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#define OMAP4_HAS_PERF_SILICON BIT(9)
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#define OMAP3_HAS_FEATURE(feat,flag) \
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static inline unsigned int omap3_has_ ##feat(void) \
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{ \
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return omap_features & OMAP3_HAS_ ##flag; \
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} \
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OMAP3_HAS_FEATURE(l2cache, L2CACHE)
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OMAP3_HAS_FEATURE(sgx, SGX)
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OMAP3_HAS_FEATURE(iva, IVA)
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OMAP3_HAS_FEATURE(neon, NEON)
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OMAP3_HAS_FEATURE(isp, ISP)
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OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK)
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OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP)
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OMAP3_HAS_FEATURE(sdrc, SDRC)
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OMAP3_HAS_FEATURE(io_chain_ctrl, IO_CHAIN_CTRL)
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/*
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* Runtime detection of OMAP4 features
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*/
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#define OMAP4_HAS_FEATURE(feat, flag) \
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static inline unsigned int omap4_has_ ##feat(void) \
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{ \
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return omap_features & OMAP4_HAS_ ##flag; \
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} \
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OMAP4_HAS_FEATURE(perf_silicon, PERF_SILICON)
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/*
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* We need to make sure omap initcalls don't run when
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* multiplatform kernels are booted on other SoCs.
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*/
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#define omap_initcall(level, fn) \
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static int __init __used __##fn(void) \
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{ \
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if (!soc_is_omap()) \
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return 0; \
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return fn(); \
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} \
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level(__##fn);
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#define omap_early_initcall(fn) omap_initcall(early_initcall, fn)
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#define omap_core_initcall(fn) omap_initcall(core_initcall, fn)
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#define omap_postcore_initcall(fn) omap_initcall(postcore_initcall, fn)
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#define omap_arch_initcall(fn) omap_initcall(arch_initcall, fn)
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#define omap_subsys_initcall(fn) omap_initcall(subsys_initcall, fn)
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#define omap_device_initcall(fn) omap_initcall(device_initcall, fn)
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#define omap_late_initcall(fn) omap_initcall(late_initcall, fn)
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#define omap_late_initcall_sync(fn) omap_initcall(late_initcall_sync, fn)
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/* Legacy defines, these can be removed when users are removed */
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#define cpu_is_omap2420() soc_is_omap2420()
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#define cpu_is_omap2422() soc_is_omap2422()
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#define cpu_is_omap242x() soc_is_omap242x()
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#define cpu_is_omap2430() soc_is_omap2430()
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#define cpu_is_omap243x() soc_is_omap243x()
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#define cpu_is_omap24xx() soc_is_omap24xx()
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#define cpu_is_omap3430() soc_is_omap3430()
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#define cpu_is_omap343x() soc_is_omap343x()
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#define cpu_is_omap34xx() soc_is_omap34xx()
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#define cpu_is_omap3630() soc_is_omap3630()
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#define cpu_is_omap443x() soc_is_omap443x()
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#define cpu_is_omap446x() soc_is_omap446x()
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#define cpu_is_omap44xx() soc_is_omap44xx()
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#define cpu_is_ti814x() soc_is_ti814x()
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#define cpu_is_ti816x() soc_is_ti816x()
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#define cpu_is_ti81xx() soc_is_ti81xx()
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#endif /* __ASSEMBLY__ */
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