diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/qoriq/clock/clock-config.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/clock/clock-config.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/clock/clock-config.c b/c/src/lib/libbsp/powerpc/qoriq/clock/clock-config.c deleted file mode 100644 index 82d8b8c57f..0000000000 --- a/c/src/lib/libbsp/powerpc/qoriq/clock/clock-config.c +++ /dev/null @@ -1,178 +0,0 @@ -/** - * @file - * - * @ingroup QorIQ - * - * @brief QorIQ clock configuration. - */ - -/* - * Copyright (c) 2011, 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 <rtems/timecounter.h> - -#include <libcpu/powerpc-utility.h> - -#include <bsp.h> -#include <bsp/qoriq.h> -#include <bsp/irq.h> - -/* This is defined in clockdrv_shell.h */ -static rtems_isr Clock_isr(void *arg); - -static struct timecounter qoriq_clock_tc; - -#ifdef QORIQ_IS_HYPERVISOR_GUEST - -#define CLOCK_DRIVER_USE_ONLY_BOOT_PROCESSOR - -void qoriq_decrementer_dispatch(void) -{ - PPC_SET_SPECIAL_PURPOSE_REGISTER(BOOKE_TSR, BOOKE_TSR_DIS); - Clock_isr(NULL); -} - -static uint32_t qoriq_clock_get_timecount(struct timecounter *tc) -{ - return ppc_alternate_time_base(); -} - -static void qoriq_clock_initialize(void) -{ - uint64_t frequency = bsp_time_base_frequency; - uint32_t us_per_tick = rtems_configuration_get_microseconds_per_tick(); - uint32_t interval = (uint32_t) ((frequency * us_per_tick) / 1000000); - - PPC_SET_SPECIAL_PURPOSE_REGISTER(BOOKE_DECAR, interval - 1); - PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS( - BOOKE_TCR, - BOOKE_TCR_DIE | BOOKE_TCR_ARE - ); - ppc_set_decrementer_register(interval - 1); - - qoriq_clock_tc.tc_get_timecount = qoriq_clock_get_timecount; - qoriq_clock_tc.tc_counter_mask = 0xffffffff; - qoriq_clock_tc.tc_frequency = qoriq_clock_frequency; - qoriq_clock_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER; - rtems_timecounter_install(&qoriq_clock_tc); -} - -#else /* !QORIQ_IS_HYPERVISOR_GUEST */ - -static volatile qoriq_pic_global_timer *const qoriq_clock = - #if QORIQ_CLOCK_TIMER < 4 - &qoriq.pic.gta [QORIQ_CLOCK_TIMER]; - #else - &qoriq.pic.gtb [QORIQ_CLOCK_TIMER - 4]; - #endif - -static volatile qoriq_pic_global_timer *const qoriq_timecounter = - #if QORIQ_CLOCK_TIMECOUNTER < 4 - &qoriq.pic.gta [QORIQ_CLOCK_TIMECOUNTER]; - #else - &qoriq.pic.gtb [QORIQ_CLOCK_TIMECOUNTER - 4]; - #endif - -#define CLOCK_INTERRUPT (QORIQ_IRQ_GT_BASE + QORIQ_CLOCK_TIMER) - -static void qoriq_clock_handler_install(void) -{ - rtems_status_code sc = RTEMS_SUCCESSFUL; - -#if defined(RTEMS_MULTIPROCESSING) && !defined(RTEMS_SMP) - { - Processor_mask affinity; - - _Processor_mask_From_index(&affinity, ppc_processor_id()); - bsp_interrupt_set_affinity(CLOCK_INTERRUPT, &affinity); - } -#endif - - sc = qoriq_pic_set_priority( - CLOCK_INTERRUPT, - QORIQ_PIC_PRIORITY_LOWEST, - NULL - ); - if (sc != RTEMS_SUCCESSFUL) { - rtems_fatal_error_occurred(0xdeadbeef); - } - - sc = rtems_interrupt_handler_install( - CLOCK_INTERRUPT, - "Clock", - RTEMS_INTERRUPT_UNIQUE, - Clock_isr, - NULL - ); - if (sc != RTEMS_SUCCESSFUL) { - rtems_fatal_error_occurred(0xdeadbeef); - } -} - -static uint32_t qoriq_clock_get_timecount(struct timecounter *tc) -{ - uint32_t ccr = qoriq_timecounter->ccr; - - return GTCCR_COUNT_GET(-ccr); -} - -static void qoriq_clock_initialize(void) -{ - uint32_t timer_frequency = BSP_bus_frequency / 8; - uint32_t interval = (uint32_t) (((uint64_t) timer_frequency - * (uint64_t) rtems_configuration_get_microseconds_per_tick()) / 1000000); - - qoriq_clock->bcr = GTBCR_COUNT(interval); - - qoriq_timecounter->bcr = GTBCR_COUNT(0xffffffff); - - qoriq_clock_tc.tc_get_timecount = qoriq_clock_get_timecount; - qoriq_clock_tc.tc_counter_mask = GTCCR_COUNT_GET(0xffffffff); - qoriq_clock_tc.tc_frequency = timer_frequency; - qoriq_clock_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER; - rtems_timecounter_install(&qoriq_clock_tc); -} - -static void qoriq_clock_cleanup(void) -{ - rtems_status_code sc = RTEMS_SUCCESSFUL; - - qoriq_clock->bcr = GTBCR_CI; - - sc = rtems_interrupt_handler_remove( - CLOCK_INTERRUPT, - Clock_isr, - NULL - ); - if (sc != RTEMS_SUCCESSFUL) { - rtems_fatal_error_occurred(0xdeadbeef); - } -} - -#define Clock_driver_support_install_isr(clock_isr) \ - qoriq_clock_handler_install() - -#define Clock_driver_support_set_interrupt_affinity(online_processors) \ - bsp_interrupt_set_affinity(CLOCK_INTERRUPT, online_processors) - -#define Clock_driver_support_shutdown_hardware() \ - qoriq_clock_cleanup() - -#endif /* QORIQ_IS_HYPERVISOR_GUEST */ - -#define Clock_driver_support_initialize_hardware() \ - qoriq_clock_initialize() - -/* Include shared source clock driver code */ -#include "../../../shared/clockdrv_shell.h" |