From 553b085c2075f6a4a2591108554f830fa61e881f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann <arnd@arndb.de> Date: Wed, 7 Mar 2018 21:36:19 +0100 Subject: arch: remove m32r port The Mitsubishi/Renesas m32r architecture has been around for many years, but the Linux port has been obsolete for a very long time as well, with the last significant updates done for linux-2.6.14. While some m32r microcontrollers are still being marketed by Renesas, those are apparently no longer possible to support, mainly due to the lack of an external memory interface. Hirokazu Takata was the maintainer until the architecture got marked Orphaned in 2014. Link: http://www.linux-m32r.org/ Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- arch/m32r/include/asm/assembler.h | 231 -------------------------------------- 1 file changed, 231 deletions(-) delete mode 100644 arch/m32r/include/asm/assembler.h (limited to 'arch/m32r/include/asm/assembler.h') diff --git a/arch/m32r/include/asm/assembler.h b/arch/m32r/include/asm/assembler.h deleted file mode 100644 index ed90d894f285..000000000000 --- a/arch/m32r/include/asm/assembler.h +++ /dev/null @@ -1,231 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_M32R_ASSEMBLER_H -#define _ASM_M32R_ASSEMBLER_H - -/* - * linux/asm-m32r/assembler.h - * - * Copyright (C) 2004 Hirokazu Takata <takata at linux-m32r.org> - * - * This file contains M32R architecture specific macro definitions. - */ - -#include <linux/stringify.h> - -#undef __STR - -#ifdef __ASSEMBLY__ -#define __STR(x) x -#else -#define __STR(x) __stringify(x) -#endif - -#ifdef CONFIG_SMP -#define M32R_LOCK __STR(lock) -#define M32R_UNLOCK __STR(unlock) -#else -#define M32R_LOCK __STR(ld) -#define M32R_UNLOCK __STR(st) -#endif - -#ifdef __ASSEMBLY__ -#undef ENTRY -#define ENTRY(name) ENTRY_M name - .macro ENTRY_M name - .global \name - ALIGN -\name: - .endm -#endif - - -/** - * LDIMM - load immediate value - * STI - enable interruption - * CLI - disable interruption - */ - -#ifdef __ASSEMBLY__ - -#define LDIMM(reg,x) LDIMM reg x - .macro LDIMM reg x - seth \reg, #high(\x) - or3 \reg, \reg, #low(\x) - .endm - -#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104)) -#define ENABLE_INTERRUPTS(reg) ENABLE_INTERRUPTS reg - .macro ENABLE_INTERRUPTS reg - setpsw #0x40 -> nop - ; WORKAROUND: "-> nop" is a workaround for the M32700(TS1). - .endm - -#define DISABLE_INTERRUPTS(reg) DISABLE_INTERRUPTS reg - .macro DISABLE_INTERRUPTS reg - clrpsw #0x40 -> nop - ; WORKAROUND: "-> nop" is a workaround for the M32700(TS1). - .endm -#else /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */ -#define ENABLE_INTERRUPTS(reg) ENABLE_INTERRUPTS reg - .macro ENABLE_INTERRUPTS reg - mvfc \reg, psw - or3 \reg, \reg, #0x0040 - mvtc \reg, psw - .endm - -#define DISABLE_INTERRUPTS(reg) DISABLE_INTERRUPTS reg - .macro DISABLE_INTERRUPTS reg - mvfc \reg, psw - and3 \reg, \reg, #0xffbf - mvtc \reg, psw - .endm -#endif /* CONFIG_CHIP_M32102 */ - - .macro SAVE_ALL - push r0 ; orig_r0 - push sp ; spi (r15) - push lr ; r14 - push r13 - mvfc r13, cr3 ; spu - push r13 - mvfc r13, bbpc - push r13 - mvfc r13, bbpsw - push r13 - mvfc r13, bpc - push r13 - mvfc r13, psw - push r13 -#if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2) - mvfaclo r13, a1 - push r13 - mvfachi r13, a1 - push r13 - mvfaclo r13, a0 - push r13 - mvfachi r13, a0 - push r13 -#elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R) - mvfaclo r13 - push r13 - mvfachi r13 - push r13 - ldi r13, #0 - push r13 ; dummy push acc1h - push r13 ; dummy push acc1l -#else -#error unknown isa configuration -#endif - ldi r13, #-1 - push r13 ; syscall_nr (default: -1) - push r12 - push r11 - push r10 - push r9 - push r8 - push r7 - push r3 - push r2 - push r1 - push r0 - addi sp, #-4 ; room for implicit pt_regs parameter - push r6 - push r5 - push r4 - .endm - - .macro RESTORE_ALL - pop r4 - pop r5 - pop r6 - addi sp, #4 - pop r0 - pop r1 - pop r2 - pop r3 - pop r7 - pop r8 - pop r9 - pop r10 - pop r11 - pop r12 - addi r15, #4 ; Skip syscall number -#if defined(CONFIG_ISA_M32R2) && defined(CONFIG_ISA_DSP_LEVEL2) - pop r13 - mvtachi r13, a0 - pop r13 - mvtaclo r13, a0 - pop r13 - mvtachi r13, a1 - pop r13 - mvtaclo r13, a1 -#elif defined(CONFIG_ISA_M32R2) || defined(CONFIG_ISA_M32R) - pop r13 ; dummy pop acc1h - pop r13 ; dummy pop acc1l - pop r13 - mvtachi r13 - pop r13 - mvtaclo r13 -#else -#error unknown isa configuration -#endif - pop r14 - mvtc r14, psw - pop r14 - mvtc r14, bpc - addi sp, #8 ; Skip bbpsw, bbpc - pop r14 - mvtc r14, cr3 ; spu - pop r13 - pop lr ; r14 - pop sp ; spi (r15) - addi sp, #4 ; Skip orig_r0 - .fillinsn -1: rte - .section .fixup,"ax" -2: bl do_exit - .previous - .section __ex_table,"a" - ALIGN - .long 1b, 2b - .previous - .endm - -#define GET_CURRENT(reg) get_current reg - .macro get_current reg - ldi \reg, #-8192 - and \reg, sp - .endm - -#if !(defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_M32104)) - .macro SWITCH_TO_KERNEL_STACK - ; switch to kernel stack (spi) - clrpsw #0x80 -> nop - .endm -#else /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */ - .macro SWITCH_TO_KERNEL_STACK - push r0 ; save r0 for working - mvfc r0, psw - and3 r0, r0, #0x00ff7f - mvtc r0, psw - slli r0, #16 - bltz r0, 1f ; check BSM-bit -; - ;; called from kernel context: previous stack = spi - pop r0 ; retrieve r0 - bra 2f - .fillinsn -1: - ;; called from user context: previous stack = spu - mvfc r0, cr3 ; spu - addi r0, #4 - mvtc r0, cr3 ; spu - ld r0, @(-4,r0) ; retrieve r0 - .fillinsn -2: - .endm -#endif /* CONFIG_CHIP_M32102 || CONFIG_CHIP_M32104 */ - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_M32R_ASSEMBLER_H */ -- cgit v1.2.3