6852215a32
The DRA7xx is a high-performance, infotainment application device, based on enhanced OMAP architecture integrated on a 28-nm technology. Since DRA7 is a platform supported only using DT, the cpu detection is based on the compatibles passed from DT blobs as suggested here http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/187712.html Suggested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Rajendra Nayak <rnayak@ti.com>
230 lines
5.7 KiB
C
230 lines
5.7 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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*
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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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#ifndef __ASM_ARCH_OMAP_CPU_H
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#define __ASM_ARCH_OMAP_CPU_H
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#ifndef __ASSEMBLY__
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#include <linux/bitops.h>
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/*
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* Test if multicore OMAP support is needed
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*/
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#undef MULTI_OMAP1
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#undef OMAP_NAME
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#ifdef CONFIG_ARCH_OMAP730
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# ifdef OMAP_NAME
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# undef MULTI_OMAP1
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# define MULTI_OMAP1
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# else
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# define OMAP_NAME omap730
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# endif
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#endif
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#ifdef CONFIG_ARCH_OMAP850
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# ifdef OMAP_NAME
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# undef MULTI_OMAP1
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# define MULTI_OMAP1
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# else
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# define OMAP_NAME omap850
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# endif
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#endif
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#ifdef CONFIG_ARCH_OMAP15XX
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# ifdef OMAP_NAME
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# undef MULTI_OMAP1
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# define MULTI_OMAP1
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# else
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# define OMAP_NAME omap1510
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# endif
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#endif
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#ifdef CONFIG_ARCH_OMAP16XX
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# ifdef OMAP_NAME
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# undef MULTI_OMAP1
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# define MULTI_OMAP1
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# else
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# define OMAP_NAME omap16xx
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# endif
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#endif
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/*
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* omap_rev bits:
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* CPU id bits (0730, 1510, 1710, 2422...) [31:16]
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* CPU revision (See _REV_ defined in cpu.h) [15:08]
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* CPU 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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/*
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* Get the CPU 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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* cpu_is_omap7xx(): True for OMAP730, OMAP850
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* cpu_is_omap15xx(): True for OMAP1510, OMAP5910 and OMAP310
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* cpu_is_omap16xx(): True for OMAP1610, OMAP5912 and OMAP1710
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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_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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IS_OMAP_CLASS(7xx, 0x07)
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IS_OMAP_CLASS(15xx, 0x15)
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IS_OMAP_CLASS(16xx, 0x16)
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#define cpu_is_omap7xx() 0
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#define cpu_is_omap15xx() 0
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#define cpu_is_omap16xx() 0
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#if defined(MULTI_OMAP1)
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# if defined(CONFIG_ARCH_OMAP730)
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# undef cpu_is_omap7xx
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# define cpu_is_omap7xx() is_omap7xx()
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# endif
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# if defined(CONFIG_ARCH_OMAP850)
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# undef cpu_is_omap7xx
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# define cpu_is_omap7xx() is_omap7xx()
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# endif
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# if defined(CONFIG_ARCH_OMAP15XX)
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# undef cpu_is_omap15xx
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# define cpu_is_omap15xx() is_omap15xx()
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# endif
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# if defined(CONFIG_ARCH_OMAP16XX)
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# undef cpu_is_omap16xx
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# define cpu_is_omap16xx() is_omap16xx()
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# endif
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#else
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# if defined(CONFIG_ARCH_OMAP730)
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# undef cpu_is_omap7xx
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# define cpu_is_omap7xx() 1
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# endif
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# if defined(CONFIG_ARCH_OMAP850)
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# undef cpu_is_omap7xx
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# define cpu_is_omap7xx() 1
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# endif
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# if defined(CONFIG_ARCH_OMAP15XX)
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# undef cpu_is_omap15xx
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# define cpu_is_omap15xx() 1
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# endif
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# if defined(CONFIG_ARCH_OMAP16XX)
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# undef cpu_is_omap16xx
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# define cpu_is_omap16xx() 1
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# endif
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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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* cpu_is_omap310(): True for OMAP310
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* cpu_is_omap1510(): True for OMAP1510
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* cpu_is_omap1610(): True for OMAP1610
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* cpu_is_omap1611(): True for OMAP1611
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* cpu_is_omap5912(): True for OMAP5912
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* cpu_is_omap1621(): True for OMAP1621
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* cpu_is_omap1710(): True for OMAP1710
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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(310, 0x0310)
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IS_OMAP_TYPE(1510, 0x1510)
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IS_OMAP_TYPE(1610, 0x1610)
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IS_OMAP_TYPE(1611, 0x1611)
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IS_OMAP_TYPE(5912, 0x1611)
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IS_OMAP_TYPE(1621, 0x1621)
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IS_OMAP_TYPE(1710, 0x1710)
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#define cpu_is_omap310() 0
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#define cpu_is_omap1510() 0
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#define cpu_is_omap1610() 0
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#define cpu_is_omap5912() 0
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#define cpu_is_omap1611() 0
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#define cpu_is_omap1621() 0
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#define cpu_is_omap1710() 0
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/* These are needed to compile common code */
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#ifdef CONFIG_ARCH_OMAP1
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#define cpu_is_omap242x() 0
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#define cpu_is_omap2430() 0
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#define cpu_is_omap243x() 0
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#define cpu_is_omap24xx() 0
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#define cpu_is_omap34xx() 0
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#define cpu_is_omap44xx() 0
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#define soc_is_omap54xx() 0
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#define soc_is_dra7xx() 0
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#define soc_is_am33xx() 0
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#define cpu_class_is_omap1() 1
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#define cpu_class_is_omap2() 0
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#endif
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/*
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* Whether we have MULTI_OMAP1 or not, we still need to distinguish
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* between 310 vs. 1510 and 1611B/5912 vs. 1710.
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*/
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#if defined(CONFIG_ARCH_OMAP15XX)
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# undef cpu_is_omap310
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# undef cpu_is_omap1510
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# define cpu_is_omap310() is_omap310()
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# define cpu_is_omap1510() is_omap1510()
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#endif
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#if defined(CONFIG_ARCH_OMAP16XX)
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# undef cpu_is_omap1610
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# undef cpu_is_omap1611
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# undef cpu_is_omap5912
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# undef cpu_is_omap1621
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# undef cpu_is_omap1710
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# define cpu_is_omap1610() is_omap1610()
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# define cpu_is_omap1611() is_omap1611()
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# define cpu_is_omap5912() is_omap5912()
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# define cpu_is_omap1621() is_omap1621()
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# define cpu_is_omap1710() is_omap1710()
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#endif
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#endif /* __ASSEMBLY__ */
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#endif
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