blob: 5785078c4189f593c89873d91d00decd8595f5ae (
plain) (
blame)
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
|
/**
* @file
*
* @ingroup QorIQ
*
* @brief BSP startup.
*/
/*
* Copyright (c) 2010-2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 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 <rtems.h>
#include <rtems/config.h>
#include <rtems/counter.h>
#include <libchip/serial.h>
#include <libcpu/powerpc-utility.h>
#include <bsp.h>
#include <bsp/vectors.h>
#include <bsp/bootcard.h>
#include <bsp/irq-generic.h>
#include <bsp/u-boot.h>
#include <bsp/linker-symbols.h>
#include <bsp/mmu.h>
#include <bsp/qoriq.h>
LINKER_SYMBOL(bsp_exc_vector_base);
/* Configuration parameters for console driver, ... */
unsigned int BSP_bus_frequency;
/* Configuration parameter for clock driver, ... */
uint32_t bsp_clicks_per_usec;
void BSP_panic(char *s)
{
rtems_interrupt_level level;
rtems_interrupt_disable(level);
printk("%s PANIC %s\n", rtems_get_version_string(), s);
while (1) {
/* Do nothing */
}
}
void _BSP_Fatal_error(unsigned n)
{
rtems_interrupt_level level;
rtems_interrupt_disable(level);
printk("%s PANIC ERROR %u\n", rtems_get_version_string(), n);
while (1) {
/* Do nothing */
}
}
void bsp_start(void)
{
unsigned long i = 0;
ppc_cpu_id_t myCpu;
ppc_cpu_revision_t myCpuRevision;
/*
* 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...
*/
myCpu = get_ppc_cpu_type();
myCpuRevision = get_ppc_cpu_revision();
/* Initialize some device driver parameters */
#ifdef HAS_UBOOT
BSP_bus_frequency = bsp_uboot_board_info.bi_busfreq;
bsp_clicks_per_usec = bsp_uboot_board_info.bi_busfreq / 8000000;
#endif /* HAS_UBOOT */
rtems_counter_initialize_converter(BSP_bus_frequency / 8);
/* Initialize some console parameters */
for (i = 0; i < Console_Configuration_Count; ++i) {
console_tbl *ct = &Console_Configuration_Ports[i];
ct->ulClock = BSP_bus_frequency;
#ifdef HAS_UBOOT
if (ct->deviceType == SERIAL_NS16550) {
ct->pDeviceParams = (void *) bsp_uboot_board_info.bi_baudrate;
}
#endif
}
/* Disable decrementer */
PPC_CLEAR_SPECIAL_PURPOSE_REGISTER_BITS(BOOKE_TCR, BOOKE_TCR_DIE);
/* Initialize exception handler */
ppc_exc_initialize_with_vector_base(
(uintptr_t) bsp_section_work_begin,
rtems_configuration_get_interrupt_stack_size(),
bsp_exc_vector_base
);
/* Now it is possible to make the code execute only */
qoriq_mmu_change_perm(
FSL_EIS_MAS3_SR | FSL_EIS_MAS3_SX,
FSL_EIS_MAS3_SX,
FSL_EIS_MAS3_SR
);
/* Initalize interrupt support */
bsp_interrupt_initialize();
/* Disable boot page translation */
qoriq.lcc.bptr &= ~BPTR_EN;
}
|
