162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci * 362306a36Sopenharmony_ci * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#include <linux/linkage.h> 762306a36Sopenharmony_ci#include <cpu/mmu_context.h> 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci/* 1062306a36Sopenharmony_ci * Kernel mode register usage: 1162306a36Sopenharmony_ci * k0 scratch 1262306a36Sopenharmony_ci * k1 scratch 1362306a36Sopenharmony_ci * For more details, please have a look at entry.S 1462306a36Sopenharmony_ci */ 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci#define k0 r0 1762306a36Sopenharmony_ci#define k1 r1 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciENTRY(wakeup_start) 2062306a36Sopenharmony_ci! clear STBY bit 2162306a36Sopenharmony_ci mov #-126, k1 2262306a36Sopenharmony_ci and #127, k0 2362306a36Sopenharmony_ci mov.b k0, @k1 2462306a36Sopenharmony_ci! enable refresh 2562306a36Sopenharmony_ci mov.l 5f, k1 2662306a36Sopenharmony_ci mov.w 6f, k0 2762306a36Sopenharmony_ci mov.w k0, @k1 2862306a36Sopenharmony_ci! jump to handler 2962306a36Sopenharmony_ci mov.l 4f, k1 3062306a36Sopenharmony_ci jmp @k1 3162306a36Sopenharmony_ci nop 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci .align 2 3462306a36Sopenharmony_ci4: .long handle_interrupt 3562306a36Sopenharmony_ci5: .long 0xffffff68 3662306a36Sopenharmony_ci6: .word 0x0524 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ciENTRY(wakeup_end) 3962306a36Sopenharmony_ci nop 40