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
|
/**
* @file
*
* @ingroup RTEMSBSPsPowerPCQorIQ
*
* @brief BSP startup.
*/
/*
* Copyright (c) 2010, 2017 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <libfdt.h>
#include <rtems.h>
#include <rtems/config.h>
#include <rtems/counter.h>
#include <rtems/sysinit.h>
#include <libcpu/powerpc-utility.h>
#include <bsp.h>
#include <bsp/bootcard.h>
#include <bsp/console-termios.h>
#include <bsp/fatal.h>
#include <bsp/fdt.h>
#include <bsp/intercom.h>
#include <bsp/irq-generic.h>
#include <bsp/linker-symbols.h>
#include <bsp/mmu.h>
#include <bsp/qoriq.h>
#include <bsp/vectors.h>
LINKER_SYMBOL(bsp_exc_vector_base);
qoriq_start_spin_table *
qoriq_start_spin_table_addr[QORIQ_CPU_COUNT / QORIQ_THREAD_COUNT];
/* Configuration parameters for console driver, ... */
unsigned int BSP_bus_frequency;
/* Configuration parameter for clock driver, ... */
uint32_t bsp_time_base_frequency;
uint32_t qoriq_clock_frequency;
uint32_t _CPU_Counter_frequency(void)
{
#ifdef __PPC_CPU_E6500__
return qoriq_clock_frequency;
#else
return bsp_time_base_frequency;
#endif
}
static void initialize_frequency_parameters(void)
{
const void *fdt = bsp_fdt_get();
int node;
int len;
fdt32_t *val_fdt;
node = fdt_node_offset_by_prop_value(fdt, -1, "device_type", "cpu", 4);
val_fdt = (fdt32_t *) fdt_getprop(fdt, node, "bus-frequency", &len);
if (val_fdt == NULL || len != 4) {
bsp_fatal(QORIQ_FATAL_FDT_NO_BUS_FREQUENCY);
}
BSP_bus_frequency = fdt32_to_cpu(*val_fdt) / QORIQ_BUS_CLOCK_DIVIDER;
val_fdt = (fdt32_t *) fdt_getprop(fdt, node, "timebase-frequency", &len);
if (val_fdt == NULL || len != 4) {
bsp_fatal(QORIQ_FATAL_FDT_NO_BUS_FREQUENCY);
}
bsp_time_base_frequency = fdt32_to_cpu(*val_fdt);
#ifdef __PPC_CPU_E6500__
val_fdt = (fdt32_t *) fdt_getprop(fdt, node, "clock-frequency", &len);
if (val_fdt == NULL || len != 4) {
bsp_fatal(QORIQ_FATAL_FDT_NO_CLOCK_FREQUENCY);
}
qoriq_clock_frequency = fdt32_to_cpu(*val_fdt);
#endif
}
#define MTIVPR(base) \
__asm__ volatile ("mtivpr %0" : : "r" (base))
#ifdef __powerpc64__
#define VECTOR_TABLE_ENTRY_SIZE 32
#else
#define VECTOR_TABLE_ENTRY_SIZE 16
#endif
#define MTIVOR(vec, offset) \
do { \
__asm__ volatile ("mtspr " RTEMS_XSTRING(vec) ", %0" : : "r" (offset)); \
offset += VECTOR_TABLE_ENTRY_SIZE; \
} while (0)
void qoriq_initialize_exceptions(void *interrupt_stack_begin)
{
uintptr_t addr;
ppc_exc_initialize_interrupt_stack(
(uintptr_t) interrupt_stack_begin
);
addr = (uintptr_t) bsp_exc_vector_base;
MTIVPR(addr);
MTIVOR(BOOKE_IVOR0, addr);
MTIVOR(BOOKE_IVOR1, addr);
MTIVOR(BOOKE_IVOR2, addr);
MTIVOR(BOOKE_IVOR3, addr);
MTIVOR(BOOKE_IVOR4, addr);
MTIVOR(BOOKE_IVOR5, addr);
MTIVOR(BOOKE_IVOR6, addr);
#ifdef __PPC_CPU_E6500__
MTIVOR(BOOKE_IVOR7, addr);
#endif
MTIVOR(BOOKE_IVOR8, addr);
#ifdef __PPC_CPU_E6500__
MTIVOR(BOOKE_IVOR9, addr);
#endif
MTIVOR(BOOKE_IVOR10, addr);
MTIVOR(BOOKE_IVOR11, addr);
MTIVOR(BOOKE_IVOR12, addr);
MTIVOR(BOOKE_IVOR13, addr);
MTIVOR(BOOKE_IVOR14, addr);
MTIVOR(BOOKE_IVOR15, addr);
MTIVOR(BOOKE_IVOR32, addr);
MTIVOR(BOOKE_IVOR33, addr);
#ifndef __PPC_CPU_E6500__
MTIVOR(BOOKE_IVOR34, addr);
#endif
MTIVOR(BOOKE_IVOR35, addr);
#ifdef __PPC_CPU_E6500__
MTIVOR(BOOKE_IVOR36, addr);
MTIVOR(BOOKE_IVOR37, addr);
#ifndef QORIQ_IS_HYPERVISOR_GUEST
MTIVOR(BOOKE_IVOR38, addr);
MTIVOR(BOOKE_IVOR39, addr);
MTIVOR(BOOKE_IVOR40, addr);
MTIVOR(BOOKE_IVOR41, addr);
MTIVOR(BOOKE_IVOR42, addr);
#endif
#endif
}
void bsp_start(void)
{
/*
* Get CPU identification dynamically. Note that the get_ppc_cpu_type() function
* store the result in global variables so that it can be used latter...
*/
get_ppc_cpu_type();
get_ppc_cpu_revision();
initialize_frequency_parameters();
qoriq_initialize_exceptions(_ISR_Stack_area_begin);
bsp_interrupt_initialize();
rtems_cache_coherent_add_area(
bsp_section_nocacheheap_begin,
(uintptr_t) bsp_section_nocacheheap_size
);
#ifndef QORIQ_IS_HYPERVISOR_GUEST
/* Disable boot page translation */
#if QORIQ_CHIP_IS_T_VARIANT(QORIQ_CHIP_VARIANT)
qoriq.lcc.bstar &= ~LCC_BSTAR_EN;
#else
qoriq.lcc.bptr &= ~BPTR_EN;
#endif
#endif
}
uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells)
{
#ifndef QORIQ_IS_HYPERVISOR_GUEST
return intr[0] - 16;
#else
return intr[0];
#endif
}
#ifdef RTEMS_MULTIPROCESSING
RTEMS_SYSINIT_ITEM(
qoriq_intercom_init,
RTEMS_SYSINIT_BSP_PRE_DRIVERS,
RTEMS_SYSINIT_ORDER_MIDDLE
);
#endif
|
