From 7632906fc290b652416ab59eb5fb49356c064ed6 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 19 Apr 2018 06:35:52 +0200 Subject: bsps: Move clock drivers to bsps This patch is a part of the BSP source reorganization. Update #3285. --- c/src/lib/libbsp/or1k/generic_or1k/Makefile.am | 2 +- .../lib/libbsp/or1k/generic_or1k/clock/clockdrv.c | 147 --------------------- 2 files changed, 1 insertion(+), 148 deletions(-) delete mode 100644 c/src/lib/libbsp/or1k/generic_or1k/clock/clockdrv.c (limited to 'c/src/lib/libbsp/or1k') diff --git a/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am b/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am index df69ff7944..4f1fbe083b 100644 --- a/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am +++ b/c/src/lib/libbsp/or1k/generic_or1k/Makefile.am @@ -58,7 +58,7 @@ librtemsbsp_a_SOURCES += console/uart.c librtemsbsp_a_SOURCES += timer/timer.c # clock -librtemsbsp_a_SOURCES += clock/clockdrv.c +librtemsbsp_a_SOURCES +=../../../../../../bsps/or1k/generic_or1k/clock/clockdrv.c # IRQ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c diff --git a/c/src/lib/libbsp/or1k/generic_or1k/clock/clockdrv.c b/c/src/lib/libbsp/or1k/generic_or1k/clock/clockdrv.c deleted file mode 100644 index 212737b506..0000000000 --- a/c/src/lib/libbsp/or1k/generic_or1k/clock/clockdrv.c +++ /dev/null @@ -1,147 +0,0 @@ -/** - * @file - * - * @ingroup bsp_clock - * - * @brief or1k clock support. - */ - -/* - * generic_or1k Clock driver - * - * COPYRIGHT (c) 2014-2015 Hesham ALMatary - * - * 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 -#include -#include -#include -#include -#include -#include - -/* The number of clock cycles before generating a tick timer interrupt. */ -#define TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT 0x09ED9 -#define OR1K_CLOCK_CYCLE_TIME_NANOSECONDS 10 - -static struct timecounter or1ksim_tc; - -/* CPU counter */ -static CPU_Counter_ticks cpu_counter_ticks; - -/* This prototype is added here to Avoid warnings */ -void Clock_isr(void *arg); - -static void generic_or1k_clock_at_tick(void) -{ - uint32_t TTMR; - - /* For TTMR register, - * The least significant 28 bits are the number of clock cycles - * before generating a tick timer interrupt. While the most - * significant 4 bits are used for mode configuration, tick timer - * interrupt enable and pending interrupts status. - */ - TTMR = (CPU_OR1K_SPR_TTMR_MODE_RESTART | CPU_OR1K_SPR_TTMR_IE | - (TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT & CPU_OR1K_SPR_TTMR_TP_MASK) - ) & ~(CPU_OR1K_SPR_TTMR_IP); - - _OR1K_mtspr(CPU_OR1K_SPR_TTMR, TTMR); - _OR1K_mtspr(CPU_OR1K_SPR_TTCR, 0); - - cpu_counter_ticks += TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT; -} - -static void generic_or1k_clock_handler_install(proc_ptr new_isr) -{ - rtems_status_code sc = RTEMS_SUCCESSFUL; - _CPU_ISR_install_vector(OR1K_EXCEPTION_TICK_TIMER, - new_isr, - NULL); - - if (sc != RTEMS_SUCCESSFUL) { - rtems_fatal_error_occurred(0xdeadbeef); - } -} - -static uint32_t or1ksim_get_timecount(struct timecounter *tc) -{ - uint32_t ticks_since_last_timer_interrupt; - - ticks_since_last_timer_interrupt = _OR1K_mfspr(CPU_OR1K_SPR_TTCR); - - return cpu_counter_ticks + ticks_since_last_timer_interrupt; -} - -CPU_Counter_ticks _CPU_Counter_read(void) -{ - return or1ksim_get_timecount(NULL); -} - -static void generic_or1k_clock_initialize(void) -{ - uint64_t frequency = (1000000000 / OR1K_CLOCK_CYCLE_TIME_NANOSECONDS); - uint32_t TTMR; - - /* For TTMR register, - * The least significant 28 bits are the number of clock cycles - * before generating a tick timer interrupt. While the most - * significant 4 bits are used for mode configuration, tick timer - * interrupt enable and pending interrupts status. - */ - - /* FIXME: Long interval should pass since initializing the tick timer - * registers fires exceptions dispite interrupts has not been enabled yet. - */ - TTMR = (CPU_OR1K_SPR_TTMR_MODE_RESTART | CPU_OR1K_SPR_TTMR_IE | - (0xFFED9 & CPU_OR1K_SPR_TTMR_TP_MASK) - ) & ~(CPU_OR1K_SPR_TTMR_IP); - - _OR1K_mtspr(CPU_OR1K_SPR_TTMR, TTMR); - _OR1K_mtspr(CPU_OR1K_SPR_TTCR, 0); - - /* Initialize timecounter */ - or1ksim_tc.tc_get_timecount = or1ksim_get_timecount; - or1ksim_tc.tc_counter_mask = 0xffffffff; - or1ksim_tc.tc_frequency = frequency; - or1ksim_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER; - rtems_timecounter_install(&or1ksim_tc); -} - -static void generic_or1k_clock_cleanup(void) -{ - uint32_t sr; - - sr = _OR1K_mfspr(CPU_OR1K_SPR_SR); - - /* Disable tick timer exceptions */ - _OR1K_mtspr(CPU_OR1K_SPR_SR, (sr & ~CPU_OR1K_SPR_SR_IEE) - & ~CPU_OR1K_SPR_SR_TEE); - - /* Invalidate tick timer config registers */ - _OR1K_mtspr(CPU_OR1K_SPR_TTCR, 0); - _OR1K_mtspr(CPU_OR1K_SPR_TTMR, 0); -} - -CPU_Counter_ticks _CPU_Counter_difference( - CPU_Counter_ticks second, - CPU_Counter_ticks first -) -{ - return second - first; -} - -#define Clock_driver_support_at_tick() generic_or1k_clock_at_tick() - -#define Clock_driver_support_initialize_hardware() generic_or1k_clock_initialize() - -#define Clock_driver_support_install_isr(isr) \ - generic_or1k_clock_handler_install(isr) - -#define Clock_driver_support_shutdown_hardware() generic_or1k_clock_cleanup() - -#include "../../../shared/clockdrv_shell.h" -- cgit v1.2.3