aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/cpu/mpc8xxx/cpu.c
blob: 78a8f926b38440fd3cbcb7b73ff22bed9ff18aa3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
/*
 * Copyright 2009-2012 Freescale Semiconductor, Inc.
 *
 * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
 * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
 * cpu specific common code for 85xx/86xx processors.
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <config.h>
#include <common.h>
#include <command.h>
#include <tsec.h>
#include <fm_eth.h>
#include <netdev.h>
#include <asm/cache.h>
#include <asm/io.h>

DECLARE_GLOBAL_DATA_PTR;

struct cpu_type cpu_type_list [] = {
#if defined(CONFIG_MPC85xx)
	CPU_TYPE_ENTRY(8533, 8533, 1),
	CPU_TYPE_ENTRY(8535, 8535, 1),
	CPU_TYPE_ENTRY(8536, 8536, 1),
	CPU_TYPE_ENTRY(8540, 8540, 1),
	CPU_TYPE_ENTRY(8541, 8541, 1),
	CPU_TYPE_ENTRY(8543, 8543, 1),
	CPU_TYPE_ENTRY(8544, 8544, 1),
	CPU_TYPE_ENTRY(8545, 8545, 1),
	CPU_TYPE_ENTRY(8547, 8547, 1),
	CPU_TYPE_ENTRY(8548, 8548, 1),
	CPU_TYPE_ENTRY(8555, 8555, 1),
	CPU_TYPE_ENTRY(8560, 8560, 1),
	CPU_TYPE_ENTRY(8567, 8567, 1),
	CPU_TYPE_ENTRY(8568, 8568, 1),
	CPU_TYPE_ENTRY(8569, 8569, 1),
	CPU_TYPE_ENTRY(8572, 8572, 2),
	CPU_TYPE_ENTRY(P1010, P1010, 1),
	CPU_TYPE_ENTRY(P1011, P1011, 1),
	CPU_TYPE_ENTRY(P1012, P1012, 1),
	CPU_TYPE_ENTRY(P1013, P1013, 1),
	CPU_TYPE_ENTRY(P1014, P1014, 1),
	CPU_TYPE_ENTRY(P1017, P1017, 1),
	CPU_TYPE_ENTRY(P1020, P1020, 2),
	CPU_TYPE_ENTRY(P1021, P1021, 2),
	CPU_TYPE_ENTRY(P1022, P1022, 2),
	CPU_TYPE_ENTRY(P1023, P1023, 2),
	CPU_TYPE_ENTRY(P1024, P1024, 2),
	CPU_TYPE_ENTRY(P1025, P1025, 2),
	CPU_TYPE_ENTRY(P2010, P2010, 1),
	CPU_TYPE_ENTRY(P2020, P2020, 2),
	CPU_TYPE_ENTRY(P2040, P2040, 4),
	CPU_TYPE_ENTRY(P2041, P2041, 4),
	CPU_TYPE_ENTRY(P3041, P3041, 4),
	CPU_TYPE_ENTRY(P4040, P4040, 4),
	CPU_TYPE_ENTRY(P4080, P4080, 8),
	CPU_TYPE_ENTRY(P5010, P5010, 1),
	CPU_TYPE_ENTRY(P5020, P5020, 2),
	CPU_TYPE_ENTRY(BSC9130, 9130, 1),
	CPU_TYPE_ENTRY(BSC9131, 9131, 1),
#elif defined(CONFIG_MPC86xx)
	CPU_TYPE_ENTRY(8610, 8610, 1),
	CPU_TYPE_ENTRY(8641, 8641, 2),
	CPU_TYPE_ENTRY(8641D, 8641D, 2),
#endif
};

#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
u32 compute_ppc_cpumask(void)
{
	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
	int i = 0, count = 0;
	u32 cluster, mask = 0;

	do {
		int j;
		cluster = in_be32(&gur->tp_cluster[i++].lower);
		for (j = 0; j < 4; j++) {
			u32 idx = (cluster >> (j*8)) & TP_CLUSTER_INIT_MASK;
			u32 type = in_be32(&gur->tp_ityp[idx]);

			if (type & TP_ITYP_AV) {
				if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_PPC)
					mask |= 1 << count;
			}
			count++;
		}
	} while ((cluster & TP_CLUSTER_EOC) != TP_CLUSTER_EOC);

	return mask;
}
#else /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
/*
 * Before chassis genenration 2, the cpumask should be hard-coded.
 * In case of cpu type unknown or cpumask unset, use 1 as fail save.
 */
#define compute_ppc_cpumask()	1
#endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */

struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 0);

struct cpu_type *identify_cpu(u32 ver)
{
	int i;
	for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) {
		if (cpu_type_list[i].soc_ver == ver)
			return &cpu_type_list[i];
	}
	return &cpu_type_unknown;
}

#define MPC8xxx_PICFRR_NCPU_MASK  0x00001f00
#define MPC8xxx_PICFRR_NCPU_SHIFT 8

/*
 * Return a 32-bit mask indicating which cores are present on this SOC.
 */
u32 cpu_mask()
{
	ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR;
	struct cpu_type *cpu = gd->cpu;

	/* better to query feature reporting register than just assume 1 */
	if (cpu == &cpu_type_unknown)
	return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >>
			MPC8xxx_PICFRR_NCPU_SHIFT) + 1;

	if (cpu->num_cores == 0)
		return compute_ppc_cpumask();

	return cpu->mask;
}

/*
 * Return the number of cores on this SOC.
 */
int cpu_numcores() {
	struct cpu_type *cpu = gd->cpu;

	/*
	 * Report # of cores in terms of the cpu_mask if we haven't
	 * figured out how many there are yet
	 */
	if (cpu->num_cores == 0)
		return hweight32(cpu_mask());

	return cpu->num_cores;
}

/*
 * Check if the given core ID is valid
 *
 * Returns zero if it isn't, 1 if it is.
 */
int is_core_valid(unsigned int core)
{
	return !!((1 << core) & cpu_mask());
}

int probecpu (void)
{
	uint svr;
	uint ver;

	svr = get_svr();
	ver = SVR_SOC_VER(svr);

	gd->cpu = identify_cpu(ver);

	return 0;
}

/* Once in memory, compute mask & # cores once and save them off */
int fixup_cpu(void)
{
	struct cpu_type *cpu = gd->cpu;

	if (cpu->num_cores == 0) {
		cpu->mask = cpu_mask();
		cpu->num_cores = cpu_numcores();
	}

	return 0;
}

/*
 * Initializes on-chip ethernet controllers.
 * to override, implement board_eth_init()
 */
int cpu_eth_init(bd_t *bis)
{
#if defined(CONFIG_ETHER_ON_FCC)
	fec_initialize(bis);
#endif

#if defined(CONFIG_UEC_ETH)
	uec_standard_init(bis);
#endif

#if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC)
	tsec_standard_init(bis);
#endif

#ifdef CONFIG_FMAN_ENET
	fm_standard_init(bis);
#endif
	return 0;
}