From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001 From: Angelos Mouzakitis Date: Tue, 10 Oct 2023 14:33:42 +0000 Subject: Add submodule dependency files Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec --- roms/u-boot/arch/nios2/include/asm/system.h | 49 +++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 roms/u-boot/arch/nios2/include/asm/system.h (limited to 'roms/u-boot/arch/nios2/include/asm/system.h') diff --git a/roms/u-boot/arch/nios2/include/asm/system.h b/roms/u-boot/arch/nios2/include/asm/system.h new file mode 100644 index 000000000..33614d541 --- /dev/null +++ b/roms/u-boot/arch/nios2/include/asm/system.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2004, Psyent Corporation + * Scott McNutt + */ +#ifndef __ASM_NIOS2_SYSTEM_H_ +#define __ASM_NIOS2_SYSTEM_H_ + +#define local_irq_enable() __asm__ __volatile__ ( \ + "rdctl r8, status\n" \ + "ori r8, r8, 1\n" \ + "wrctl status, r8\n" \ + : : : "r8") + +#define local_irq_disable() __asm__ __volatile__ ( \ + "rdctl r8, status\n" \ + "andi r8, r8, 0xfffe\n" \ + "wrctl status, r8\n" \ + : : : "r8") + +#define local_save_flags(x) __asm__ __volatile__ ( \ + "rdctl r8, status\n" \ + "mov %0, r8\n" \ + : "=r" (x) : : "r8", "memory") + +#define local_irq_restore(x) __asm__ __volatile__ ( \ + "mov r8, %0\n" \ + "wrctl status, r8\n" \ + : : "r" (x) : "r8", "memory") + +/* For spinlocks etc */ +#define local_irq_save(x) do { local_save_flags(x); local_irq_disable(); } \ + while (0) + +#define irqs_disabled() \ +({ \ + unsigned long flags; \ + local_save_flags(flags); \ + ((flags & NIOS2_STATUS_PIE_MSK) == 0x0); \ +}) + +/* indirect call to go beyond 256MB limitation of toolchain */ +#define nios2_callr(addr) __asm__ __volatile__ ( \ + "callr %0" \ + : : "r" (addr)) + +void display_sysid(void); + +#endif /* __ASM_NIOS2_SYSTEM_H */ -- cgit