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;
}
void bsp_start_on_secondary_processor(void)
{
uint32_t cpu_index_self = _SMP_Get_current_processor();
const Per_CPU_Control *cpu_self = _Per_CPU_Get_by_index(cpu_index_self);
ppc_exc_initialize_with_vector_base(
(uintptr_t) cpu_self->interrupt_stack_low,
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
);
bsp_interrupt_facility_initialize();
start_thread_if_necessary(cpu_index_self);
_SMP_Start_multitasking_on_secondary_processor();
}
void bsp_start(void)
{
unsigned long i = 0;
/*
* 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 some device driver parameters */
#ifdef HAS_UBOOT
BSP_bus_frequency = bsp_uboot_board_info.bi_busfreq
/ QORIQ_BUS_CLOCK_DIVIDER;
bsp_clicks_per_usec = BSP_bus_frequency / 8000000;
rtems_counter_initialize_converter(
#ifdef __PPC_CPU_E6500__
bsp_uboot_board_info.bi_intfreq
#else
BSP_bus_frequency / 8
#endif
);
#endif /* HAS_UBOOT */
/* Initialize some console parameters */
for (i = 0; i < console_device_count; ++i) {
const console_device *dev = &console_device_table[i];
const rtems_termios_device_handler *ns16550 =
#ifdef BSP_USE_UART_INTERRUPTS
&ns16550_handler_interrupt;
#else
&ns16550_handler_polled;
#endif
if (dev->handler == ns16550) {
ns16550_context *ctx = (ns16550_context *) dev->context;
ctx->clock = BSP_bus_frequency;
#ifdef HAS_UBOOT
#ifdef U_BOOT_GENERIC_BOARD_INFO
ctx->initial_baud = 115200;
#else
ctx->initial_baud = bsp_uboot_board_info.bi_baudrate;
#endif
#endif
}
}
/* 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();
rtems_cache_coherent_add_area(
bsp_section_nocacheheap_begin,
(uintptr_t) bsp_section_nocacheheap_size
);
/* 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
}