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d2912cb15b
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
81 lines
1.5 KiB
ArmAsm
81 lines
1.5 KiB
ArmAsm
; SPDX-License-Identifier: GPL-2.0-only
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;
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; Port on Texas Instruments TMS320C6x architecture
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;
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; Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
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; Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
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;
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#include <linux/linkage.h>
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#include <linux/of_fdt.h>
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#include <asm/asm-offsets.h>
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__HEAD
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ENTRY(_c_int00)
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;; Save magic and pointer
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MV .S1 A4,A10
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MV .S2 B4,B10
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MVKL .S2 __bss_start,B5
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MVKH .S2 __bss_start,B5
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MVKL .S2 __bss_stop,B6
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MVKH .S2 __bss_stop,B6
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SUB .L2 B6,B5,B6 ; bss size
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;; Set the stack pointer
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MVKL .S2 current_ksp,B0
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MVKH .S2 current_ksp,B0
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LDW .D2T2 *B0,B15
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;; clear bss
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SHR .S2 B6,3,B0 ; number of dwords to clear
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ZERO .L2 B13
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ZERO .L2 B12
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bss_loop:
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BDEC .S2 bss_loop,B0
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NOP 3
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CMPLT .L2 B0,0,B1
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[!B1] STDW .D2T2 B13:B12,*B5++[1]
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NOP 4
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AND .D2 ~7,B15,B15
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;; Clear GIE and PGIE
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MVC .S2 CSR,B2
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CLR .S2 B2,0,1,B2
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MVC .S2 B2,CSR
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MVC .S2 TSR,B2
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CLR .S2 B2,0,1,B2
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MVC .S2 B2,TSR
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MVC .S2 ITSR,B2
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CLR .S2 B2,0,1,B2
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MVC .S2 B2,ITSR
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MVC .S2 NTSR,B2
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CLR .S2 B2,0,1,B2
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MVC .S2 B2,NTSR
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;; pass DTB pointer to machine_init (or zero if none)
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MVKL .S1 OF_DT_HEADER,A0
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MVKH .S1 OF_DT_HEADER,A0
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CMPEQ .L1 A10,A0,A0
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[A0] MV .S1X B10,A4
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[!A0] MVK .S1 0,A4
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#ifdef CONFIG_C6X_BIG_KERNEL
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MVKL .S1 machine_init,A0
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MVKH .S1 machine_init,A0
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B .S2X A0
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ADDKPC .S2 0f,B3,4
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0:
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#else
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CALLP .S2 machine_init,B3
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#endif
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;; Jump to Linux init
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#ifdef CONFIG_C6X_BIG_KERNEL
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MVKL .S1 start_kernel,A0
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MVKH .S1 start_kernel,A0
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B .S2X A0
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#else
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B .S2 start_kernel
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#endif
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NOP 5
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L1: BNOP .S2 L1,5
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