2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2005 Embedded Alley Solutions, Inc
7 * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
8 * Copyright (C) 2009 Jiajie Chen (chenjiajie@cse.buaa.edu.cn)
9 * Copyright (C) 2012 Huacai Chen (chenhc@lemote.com)
11 #ifndef __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H
12 #define __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H
17 * Override macros used in arch/mips/kernel/head.S.
19 .macro kernel_entry_setup
22 /* Set ELPA on LOONGSON3 pagegrain */
23 mfc0 t0, CP0_PAGEGRAIN
25 mtc0 t0, CP0_PAGEGRAIN
26 /* Enable STFill Buffer */
29 andi t1, t0, PRID_IMP_MASK
30 li t2, PRID_IMP_LOONGSON_64G
33 /* Loongson-3A R2/R3 */
34 andi t0, (PRID_IMP_MASK | PRID_REV_MASK)
35 slti t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
48 * Do SMP slave processor setup.
50 .macro smp_slave_setup
53 /* Set ELPA on LOONGSON3 pagegrain */
54 mfc0 t0, CP0_PAGEGRAIN
56 mtc0 t0, CP0_PAGEGRAIN
57 /* Enable STFill Buffer */
60 andi t1, t0, PRID_IMP_MASK
61 li t2, PRID_IMP_LOONGSON_64G
64 /* Loongson-3A R2/R3 */
65 andi t0, (PRID_IMP_MASK | PRID_REV_MASK)
66 slti t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
78 #endif /* __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H */