1/*
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
4 * for more details.
5 *
6 * Copyright (C) 2005 Ilya A. Volynets-Evenbakh
7 * Copyright (C) 2005, 07 Ralf Baechle (ralf@linux-mips.org)
8 */
9#ifndef __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H
10#define __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H
11
12
13/*
14 * R5000 has an interesting "restriction":  ll(d)/sc(d)
15 * instructions to XKPHYS region simply do uncached bus
16 * requests. This breaks all the atomic bitops functions.
17 * so, for 64bit IP32 kernel we just don't use ll/sc.
18 * This does not affect luserland.
19 */
20#if (defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)) && defined(CONFIG_64BIT)
21#define cpu_has_llsc		0
22#else
23#define cpu_has_llsc		1
24#endif
25
26/* Settings which are common for all ip32 CPUs */
27#define cpu_has_tlb		1
28#define cpu_has_4kex		1
29#define cpu_has_32fpr		1
30#define cpu_has_counter		1
31#define cpu_has_mips16		0
32#define cpu_has_mips16e2	0
33#define cpu_has_vce		0
34#define cpu_has_cache_cdex_s	0
35#define cpu_has_mcheck		0
36#define cpu_has_ejtag		0
37#define cpu_has_vtag_icache	0
38#define cpu_has_ic_fills_f_dc	0
39#define cpu_has_dsp		0
40#define cpu_has_dsp2		0
41#define cpu_has_4k_cache	1
42#define cpu_has_mipsmt		0
43#define cpu_has_userlocal	0
44
45
46#define cpu_has_mips32r1	0
47#define cpu_has_mips32r2	0
48#define cpu_has_mips64r1	0
49#define cpu_has_mips64r2	0
50
51#endif /* __ASM_MACH_IP32_CPU_FEATURE_OVERRIDES_H */
52