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https://github.com/edk2-porting/linux-next.git
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b920de1b77
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
291 lines
14 KiB
C
291 lines
14 KiB
C
/* MN10300 Core system registers
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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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 Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#ifndef _ASM_CPU_REGS_H
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#define _ASM_CPU_REGS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#endif
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#ifdef CONFIG_MN10300_CPU_AM33V2
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/* we tell the compiler to pretend to be AM33 so that it doesn't try and use
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* the FP regs, but tell the assembler that we're actually allowed AM33v2
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* instructions */
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#ifndef __ASSEMBLY__
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asm(" .am33_2\n");
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#else
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.am33_2
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#endif
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#endif
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#define __SYSREG(ADDR, TYPE) (*(volatile TYPE *)(ADDR))
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#define __SYSREGC(ADDR, TYPE) (*(const volatile TYPE *)(ADDR))
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#else
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#define __SYSREG(ADDR, TYPE) ADDR
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#define __SYSREGC(ADDR, TYPE) ADDR
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#endif
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/* CPU registers */
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#define EPSW_FLAG_Z 0x00000001 /* zero flag */
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#define EPSW_FLAG_N 0x00000002 /* negative flag */
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#define EPSW_FLAG_C 0x00000004 /* carry flag */
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#define EPSW_FLAG_V 0x00000008 /* overflow flag */
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#define EPSW_IM 0x00000700 /* interrupt mode */
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#define EPSW_IM_0 0x00000000 /* interrupt mode 0 */
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#define EPSW_IM_1 0x00000100 /* interrupt mode 1 */
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#define EPSW_IM_2 0x00000200 /* interrupt mode 2 */
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#define EPSW_IM_3 0x00000300 /* interrupt mode 3 */
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#define EPSW_IM_4 0x00000400 /* interrupt mode 4 */
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#define EPSW_IM_5 0x00000500 /* interrupt mode 5 */
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#define EPSW_IM_6 0x00000600 /* interrupt mode 6 */
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#define EPSW_IM_7 0x00000700 /* interrupt mode 7 */
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#define EPSW_IE 0x00000800 /* interrupt enable */
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#define EPSW_S 0x00003000 /* software auxilliary bits */
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#define EPSW_T 0x00008000 /* trace enable */
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#define EPSW_nSL 0x00010000 /* not supervisor level */
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#define EPSW_NMID 0x00020000 /* nonmaskable interrupt disable */
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#define EPSW_nAR 0x00040000 /* register bank control */
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#define EPSW_ML 0x00080000 /* monitor level */
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#define EPSW_FE 0x00100000 /* FPU enable */
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/* FPU registers */
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#define FPCR_EF_I 0x00000001 /* inexact result FPU exception flag */
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#define FPCR_EF_U 0x00000002 /* underflow FPU exception flag */
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#define FPCR_EF_O 0x00000004 /* overflow FPU exception flag */
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#define FPCR_EF_Z 0x00000008 /* zero divide FPU exception flag */
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#define FPCR_EF_V 0x00000010 /* invalid operand FPU exception flag */
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#define FPCR_EE_I 0x00000020 /* inexact result FPU exception enable */
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#define FPCR_EE_U 0x00000040 /* underflow FPU exception enable */
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#define FPCR_EE_O 0x00000080 /* overflow FPU exception enable */
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#define FPCR_EE_Z 0x00000100 /* zero divide FPU exception enable */
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#define FPCR_EE_V 0x00000200 /* invalid operand FPU exception enable */
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#define FPCR_EC_I 0x00000400 /* inexact result FPU exception cause */
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#define FPCR_EC_U 0x00000800 /* underflow FPU exception cause */
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#define FPCR_EC_O 0x00001000 /* overflow FPU exception cause */
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#define FPCR_EC_Z 0x00002000 /* zero divide FPU exception cause */
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#define FPCR_EC_V 0x00004000 /* invalid operand FPU exception cause */
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#define FPCR_RM 0x00030000 /* rounding mode */
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#define FPCR_RM_NEAREST 0x00000000 /* - round to nearest value */
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#define FPCR_FCC_U 0x00040000 /* FPU unordered condition code */
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#define FPCR_FCC_E 0x00080000 /* FPU equal condition code */
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#define FPCR_FCC_G 0x00100000 /* FPU greater than condition code */
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#define FPCR_FCC_L 0x00200000 /* FPU less than condition code */
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#define FPCR_INIT 0x00000000 /* no exceptions, rounding to nearest */
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/* CPU control registers */
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#define CPUP __SYSREG(0xc0000020, u16) /* CPU pipeline register */
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#define CPUP_DWBD 0x0020 /* write buffer disable flag */
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#define CPUP_IPFD 0x0040 /* instruction prefetch disable flag */
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#define CPUP_EXM 0x0080 /* exception operation mode */
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#define CPUP_EXM_AM33V1 0x0000 /* - AM33 v1 exception mode */
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#define CPUP_EXM_AM33V2 0x0080 /* - AM33 v2 exception mode */
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#define CPUM __SYSREG(0xc0000040, u16) /* CPU mode register */
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#define CPUM_SLEEP 0x0004 /* set to enter sleep state */
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#define CPUM_HALT 0x0008 /* set to enter halt state */
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#define CPUM_STOP 0x0010 /* set to enter stop state */
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#define CPUREV __SYSREGC(0xc0000050, u32) /* CPU revision register */
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#define CPUREV_TYPE 0x0000000f /* CPU type */
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#define CPUREV_TYPE_S 0
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#define CPUREV_TYPE_AM33V1 0x00000000 /* - AM33 V1 core, AM33/1.00 arch */
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#define CPUREV_TYPE_AM33V2 0x00000001 /* - AM33 V2 core, AM33/2.00 arch */
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#define CPUREV_TYPE_AM34V1 0x00000002 /* - AM34 V1 core, AM33/2.00 arch */
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#define CPUREV_REVISION 0x000000f0 /* CPU revision */
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#define CPUREV_REVISION_S 4
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#define CPUREV_ICWAY 0x00000f00 /* number of instruction cache ways */
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#define CPUREV_ICWAY_S 8
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#define CPUREV_ICSIZE 0x0000f000 /* instruction cache way size */
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#define CPUREV_ICSIZE_S 12
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#define CPUREV_DCWAY 0x000f0000 /* number of data cache ways */
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#define CPUREV_DCWAY_S 16
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#define CPUREV_DCSIZE 0x00f00000 /* data cache way size */
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#define CPUREV_DCSIZE_S 20
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#define CPUREV_FPUTYPE 0x0f000000 /* FPU core type */
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#define CPUREV_FPUTYPE_NONE 0x00000000 /* - no FPU core implemented */
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#define CPUREV_OCDCTG 0xf0000000 /* on-chip debug function category */
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#define DCR __SYSREG(0xc0000030, u16) /* Debug control register */
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/* interrupt/exception control registers */
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#define IVAR0 __SYSREG(0xc0000000, u16) /* interrupt vector 0 */
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#define IVAR1 __SYSREG(0xc0000004, u16) /* interrupt vector 1 */
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#define IVAR2 __SYSREG(0xc0000008, u16) /* interrupt vector 2 */
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#define IVAR3 __SYSREG(0xc000000c, u16) /* interrupt vector 3 */
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#define IVAR4 __SYSREG(0xc0000010, u16) /* interrupt vector 4 */
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#define IVAR5 __SYSREG(0xc0000014, u16) /* interrupt vector 5 */
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#define IVAR6 __SYSREG(0xc0000018, u16) /* interrupt vector 6 */
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#define TBR __SYSREG(0xc0000024, u32) /* Trap table base */
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#define TBR_TB 0xff000000 /* table base address bits 31-24 */
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#define TBR_INT_CODE 0x00ffffff /* interrupt code */
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#define DEAR __SYSREG(0xc0000038, u32) /* Data access exception address */
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#define sISR __SYSREG(0xc0000044, u32) /* Supervisor interrupt status */
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#define sISR_IRQICE 0x00000001 /* ICE interrupt */
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#define sISR_ISTEP 0x00000002 /* single step interrupt */
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#define sISR_MISSA 0x00000004 /* memory access address misalignment fault */
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#define sISR_UNIMP 0x00000008 /* unimplemented instruction execution fault */
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#define sISR_PIEXE 0x00000010 /* program interrupt */
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#define sISR_MEMERR 0x00000020 /* illegal memory access fault */
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#define sISR_IBREAK 0x00000040 /* instraction break interrupt */
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#define sISR_DBSRL 0x00000080 /* debug serial interrupt */
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#define sISR_PERIDB 0x00000100 /* peripheral debug interrupt */
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#define sISR_EXUNIMP 0x00000200 /* unimplemented ex-instruction execution fault */
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#define sISR_OBREAK 0x00000400 /* operand break interrupt */
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#define sISR_PRIV 0x00000800 /* privileged instruction execution fault */
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#define sISR_BUSERR 0x00001000 /* bus error fault */
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#define sISR_DBLFT 0x00002000 /* double fault */
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#define sISR_DBG 0x00008000 /* debug reserved interrupt */
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#define sISR_ITMISS 0x00010000 /* instruction TLB miss */
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#define sISR_DTMISS 0x00020000 /* data TLB miss */
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#define sISR_ITEX 0x00040000 /* instruction TLB access exception */
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#define sISR_DTEX 0x00080000 /* data TLB access exception */
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#define sISR_ILGIA 0x00100000 /* illegal instruction access exception */
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#define sISR_ILGDA 0x00200000 /* illegal data access exception */
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#define sISR_IOIA 0x00400000 /* internal I/O space instruction access excep */
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#define sISR_PRIVA 0x00800000 /* privileged space instruction access excep */
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#define sISR_PRIDA 0x01000000 /* privileged space data access excep */
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#define sISR_DISA 0x02000000 /* data space instruction access excep */
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#define sISR_SYSC 0x04000000 /* system call instruction excep */
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#define sISR_FPUD 0x08000000 /* FPU disabled excep */
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#define sISR_FPUUI 0x10000000 /* FPU unimplemented instruction excep */
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#define sISR_FPUOP 0x20000000 /* FPU operation excep */
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#define sISR_NE 0x80000000 /* multiple synchronous exceptions excep */
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/* cache control registers */
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#define CHCTR __SYSREG(0xc0000070, u16) /* cache control */
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#define CHCTR_ICEN 0x0001 /* instruction cache enable */
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#define CHCTR_DCEN 0x0002 /* data cache enable */
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#define CHCTR_ICBUSY 0x0004 /* instruction cache busy */
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#define CHCTR_DCBUSY 0x0008 /* data cache busy */
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#define CHCTR_ICINV 0x0010 /* instruction cache invalidate */
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#define CHCTR_DCINV 0x0020 /* data cache invalidate */
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#define CHCTR_DCWTMD 0x0040 /* data cache writing mode */
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#define CHCTR_DCWTMD_WRBACK 0x0000 /* - write back mode */
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#define CHCTR_DCWTMD_WRTHROUGH 0x0040 /* - write through mode */
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#define CHCTR_DCALMD 0x0080 /* data cache allocation mode */
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#define CHCTR_ICWMD 0x0f00 /* instruction cache way mode */
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#define CHCTR_DCWMD 0xf000 /* data cache way mode */
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/* MMU control registers */
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#define MMUCTR __SYSREG(0xc0000090, u32) /* MMU control register */
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#define MMUCTR_IRP 0x0000003f /* instruction TLB replace pointer */
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#define MMUCTR_ITE 0x00000040 /* instruction TLB enable */
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#define MMUCTR_IIV 0x00000080 /* instruction TLB invalidate */
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#define MMUCTR_ITL 0x00000700 /* instruction TLB lock pointer */
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#define MMUCTR_ITL_NOLOCK 0x00000000 /* - no lock */
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#define MMUCTR_ITL_LOCK0 0x00000100 /* - entry 0 locked */
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#define MMUCTR_ITL_LOCK0_1 0x00000200 /* - entry 0-1 locked */
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#define MMUCTR_ITL_LOCK0_3 0x00000300 /* - entry 0-3 locked */
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#define MMUCTR_ITL_LOCK0_7 0x00000400 /* - entry 0-7 locked */
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#define MMUCTR_ITL_LOCK0_15 0x00000500 /* - entry 0-15 locked */
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#define MMUCTR_CE 0x00008000 /* cacheable bit enable */
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#define MMUCTR_DRP 0x003f0000 /* data TLB replace pointer */
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#define MMUCTR_DTE 0x00400000 /* data TLB enable */
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#define MMUCTR_DIV 0x00800000 /* data TLB invalidate */
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#define MMUCTR_DTL 0x07000000 /* data TLB lock pointer */
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#define MMUCTR_DTL_NOLOCK 0x00000000 /* - no lock */
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#define MMUCTR_DTL_LOCK0 0x01000000 /* - entry 0 locked */
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#define MMUCTR_DTL_LOCK0_1 0x02000000 /* - entry 0-1 locked */
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#define MMUCTR_DTL_LOCK0_3 0x03000000 /* - entry 0-3 locked */
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#define MMUCTR_DTL_LOCK0_7 0x04000000 /* - entry 0-7 locked */
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#define MMUCTR_DTL_LOCK0_15 0x05000000 /* - entry 0-15 locked */
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#define PIDR __SYSREG(0xc0000094, u16) /* PID register */
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#define PIDR_PID 0x00ff /* process identifier */
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#define PTBR __SYSREG(0xc0000098, unsigned long) /* Page table base register */
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#define IPTEL __SYSREG(0xc00000a0, u32) /* instruction TLB entry */
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#define DPTEL __SYSREG(0xc00000b0, u32) /* data TLB entry */
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#define xPTEL_V 0x00000001 /* TLB entry valid */
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#define xPTEL_UNUSED1 0x00000002 /* unused bit */
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#define xPTEL_UNUSED2 0x00000004 /* unused bit */
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#define xPTEL_C 0x00000008 /* cached if set */
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#define xPTEL_PV 0x00000010 /* page valid */
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#define xPTEL_D 0x00000020 /* dirty */
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#define xPTEL_PR 0x000001c0 /* page protection */
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#define xPTEL_PR_ROK 0x00000000 /* - R/O kernel */
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#define xPTEL_PR_RWK 0x00000100 /* - R/W kernel */
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#define xPTEL_PR_ROK_ROU 0x00000080 /* - R/O kernel and R/O user */
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#define xPTEL_PR_RWK_ROU 0x00000180 /* - R/W kernel and R/O user */
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#define xPTEL_PR_RWK_RWU 0x000001c0 /* - R/W kernel and R/W user */
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#define xPTEL_G 0x00000200 /* global (use PID if 0) */
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#define xPTEL_PS 0x00000c00 /* page size */
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#define xPTEL_PS_4Kb 0x00000000 /* - 4Kb page */
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#define xPTEL_PS_128Kb 0x00000400 /* - 128Kb page */
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#define xPTEL_PS_1Kb 0x00000800 /* - 1Kb page */
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#define xPTEL_PS_4Mb 0x00000c00 /* - 4Mb page */
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#define xPTEL_PPN 0xfffff006 /* physical page number */
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#define xPTEL_V_BIT 0 /* bit numbers corresponding to above masks */
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#define xPTEL_UNUSED1_BIT 1
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#define xPTEL_UNUSED2_BIT 2
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#define xPTEL_C_BIT 3
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#define xPTEL_PV_BIT 4
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#define xPTEL_D_BIT 5
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#define xPTEL_G_BIT 9
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#define IPTEU __SYSREG(0xc00000a4, u32) /* instruction TLB virtual addr */
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#define DPTEU __SYSREG(0xc00000b4, u32) /* data TLB virtual addr */
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#define xPTEU_VPN 0xfffffc00 /* virtual page number */
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#define xPTEU_PID 0x000000ff /* process identifier to which applicable */
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#define IPTEL2 __SYSREG(0xc00000a8, u32) /* instruction TLB entry */
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#define DPTEL2 __SYSREG(0xc00000b8, u32) /* data TLB entry */
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#define xPTEL2_V 0x00000001 /* TLB entry valid */
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#define xPTEL2_C 0x00000002 /* cacheable */
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#define xPTEL2_PV 0x00000004 /* page valid */
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#define xPTEL2_D 0x00000008 /* dirty */
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#define xPTEL2_PR 0x00000070 /* page protection */
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#define xPTEL2_PR_ROK 0x00000000 /* - R/O kernel */
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#define xPTEL2_PR_RWK 0x00000040 /* - R/W kernel */
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#define xPTEL2_PR_ROK_ROU 0x00000020 /* - R/O kernel and R/O user */
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#define xPTEL2_PR_RWK_ROU 0x00000060 /* - R/W kernel and R/O user */
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#define xPTEL2_PR_RWK_RWU 0x00000070 /* - R/W kernel and R/W user */
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#define xPTEL2_G 0x00000080 /* global (use PID if 0) */
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#define xPTEL2_PS 0x00000300 /* page size */
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#define xPTEL2_PS_4Kb 0x00000000 /* - 4Kb page */
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#define xPTEL2_PS_128Kb 0x00000100 /* - 128Kb page */
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#define xPTEL2_PS_1Kb 0x00000200 /* - 1Kb page */
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#define xPTEL2_PS_4Mb 0x00000300 /* - 4Mb page */
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#define xPTEL2_PPN 0xfffffc00 /* physical page number */
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#define MMUFCR __SYSREGC(0xc000009c, u32) /* MMU exception cause */
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#define MMUFCR_IFC __SYSREGC(0xc000009c, u16) /* MMU instruction excep cause */
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#define MMUFCR_DFC __SYSREGC(0xc000009e, u16) /* MMU data exception cause */
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#define MMUFCR_xFC_TLBMISS 0x0001 /* TLB miss flag */
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#define MMUFCR_xFC_INITWR 0x0002 /* initial write excep flag */
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#define MMUFCR_xFC_PGINVAL 0x0004 /* page invalid excep flag */
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#define MMUFCR_xFC_PROTVIOL 0x0008 /* protection violation excep flag */
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#define MMUFCR_xFC_ACCESS 0x0010 /* access level flag */
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#define MMUFCR_xFC_ACCESS_USR 0x0000 /* - user mode */
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#define MMUFCR_xFC_ACCESS_SR 0x0010 /* - supervisor mode */
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#define MMUFCR_xFC_TYPE 0x0020 /* access type flag */
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#define MMUFCR_xFC_TYPE_READ 0x0000 /* - read */
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#define MMUFCR_xFC_TYPE_WRITE 0x0020 /* - write */
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#define MMUFCR_xFC_PR 0x01c0 /* page protection flag */
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#define MMUFCR_xFC_PR_ROK 0x0000 /* - R/O kernel */
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#define MMUFCR_xFC_PR_RWK 0x0100 /* - R/W kernel */
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#define MMUFCR_xFC_PR_ROK_ROU 0x0080 /* - R/O kernel and R/O user */
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#define MMUFCR_xFC_PR_RWK_ROU 0x0180 /* - R/W kernel and R/O user */
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#define MMUFCR_xFC_PR_RWK_RWU 0x01c0 /* - R/W kernel and R/W user */
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#define MMUFCR_xFC_ILLADDR 0x0200 /* illegal address excep flag */
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#endif /* __KERNEL__ */
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#endif /* _ASM_CPU_REGS_H */
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