1 files changed, 0 insertions, 333 deletions
diff --git a/chip/stm32/hwtimer32.c b/chip/stm32/hwtimer32.c
deleted file mode 100644
index 963fa44e51..0000000000
--- a/chip/stm32/hwtimer32.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/* Copyright 2014 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* Hardware 32-bit timer driver */
-
-#include "clock.h"
-#include "clock-f.h"
-#include "common.h"
-#include "hooks.h"
-#include "hwtimer.h"
-#include "panic.h"
-#include "registers.h"
-#include "task.h"
-#include "timer.h"
-#include "watchdog.h"
-
-#define IRQ_TIM(n) CONCAT2(STM32_IRQ_TIM, n)
-
-void __hw_clock_event_set(uint32_t deadline)
-{
-	/* set the match on the deadline */
-	STM32_TIM32_CCR1(TIM_CLOCK32) = deadline;
-	/* Clear the match flags */
-	STM32_TIM_SR(TIM_CLOCK32) = ~2;
-	/* Set the match interrupt */
-	STM32_TIM_DIER(TIM_CLOCK32) |= 2;
-}
-
-uint32_t __hw_clock_event_get(void)
-{
-	return STM32_TIM32_CCR1(TIM_CLOCK32);
-}
-
-void __hw_clock_event_clear(void)
-{
-	/* Disable the match interrupts */
-	STM32_TIM_DIER(TIM_CLOCK32) &= ~2;
-}
-
-uint32_t __hw_clock_source_read(void)
-{
-	return STM32_TIM32_CNT(TIM_CLOCK32);
-}
-
-void __hw_clock_source_set(uint32_t ts)
-{
-	STM32_TIM32_CNT(TIM_CLOCK32) = ts;
-}
-
-void __hw_clock_source_irq(void)
-{
-	uint32_t stat_tim = STM32_TIM_SR(TIM_CLOCK32);
-
-	/* Clear status */
-	STM32_TIM_SR(TIM_CLOCK32) = 0;
-
-	/*
-	 * Find expired timers and set the new timer deadline
-	 * signal overflow if the update interrupt flag is set.
-	 */
-	process_timers(stat_tim & 0x01);
-}
-DECLARE_IRQ(IRQ_TIM(TIM_CLOCK32), __hw_clock_source_irq, 1);
-
-void __hw_timer_enable_clock(int n, int enable)
-{
-	volatile uint32_t *reg;
-	uint32_t mask = 0;
-
-	/*
-	 * Mapping of timers to reg/mask is split into a few different ranges,
-	 * some specific to individual chips.
-	 */
-#if defined(CHIP_FAMILY_STM32F0) || defined(CHIP_FAMILY_STM32H7)
-	if (n == 1) {
-		reg = &STM32_RCC_APB2ENR;
-		mask = STM32_RCC_PB2_TIM1;
-	}
-#elif defined(CHIP_FAMILY_STM32L) || defined(CHIP_FAMILY_STM32F4)
-	if (n >= 9 && n <= 11) {
-		reg = &STM32_RCC_APB2ENR;
-		mask = STM32_RCC_PB2_TIM9 << (n - 9);
-	}
-#endif
-
-#if defined(CHIP_FAMILY_STM32F0) || defined(CHIP_FAMILY_STM32H7)
-	if (n >= 15 && n <= 17) {
-		reg = &STM32_RCC_APB2ENR;
-		mask = STM32_RCC_PB2_TIM15 << (n - 15);
-	}
-#endif
-
-#if defined(CHIP_FAMILY_STM32F0) || defined(CHIP_FAMILY_STM32F3) || \
-defined(CHIP_FAMILY_STM32H7)
-	if (n == 14) {
-		reg = &STM32_RCC_APB1ENR;
-		mask = STM32_RCC_PB1_TIM14;
-	}
-#endif
-
-#if defined(CHIP_FAMILY_STM32F3) || defined(CHIP_FAMILY_STM32H7)
-	if (n == 12 || n == 13) {
-		reg = &STM32_RCC_APB1ENR;
-		mask = STM32_RCC_PB1_TIM12 << (n - 12);
-	}
-#endif
-#if defined(CHIP_FAMILY_STM32F3)
-	if (n == 18) {
-		reg = &STM32_RCC_APB1ENR;
-		mask = STM32_RCC_PB1_TIM18;
-	}
-	if (n == 19) {
-		reg = &STM32_RCC_APB2ENR;
-		mask = STM32_RCC_PB2_TIM19;
-	}
-#endif
-#if defined(CHIP_FAMILY_STM32G4)
-	reg = &STM32_RCC_APB2ENR;
-	if (n == 1)
-		mask = STM32_RCC_APB2ENR_TIM1;
-	else if (n == 8)
-		mask = STM32_RCC_APB2ENR_TIM8;
-	else if (n == 20)
-		mask = STM32_RCC_APB2ENR_TIM20;
-	else if (n >= 15 && n <= 17)
-		mask = STM32_RCC_APB2ENR_TIM15 << (n - 15);
-#endif
-#if defined(CHIP_FAMILY_STM32L4)
-	if (n >= 2 && n <= 7) {
-		reg = &STM32_RCC_APB1ENR1;
-		mask = STM32_RCC_PB1_TIM2 << (n - 2);
-	} else if (n == 1 || n == 15 || n == 16) {
-		reg = &STM32_RCC_APB2ENR;
-		mask = (n == 1)	 ? STM32_RCC_APB2ENR_TIM1EN :
-		       (n == 15) ? STM32_RCC_APB2ENR_TIM15EN :
-					 STM32_RCC_APB2ENR_TIM16EN;
-	}
-#else
-	if (n >= 2 && n <= 7) {
-		reg = &STM32_RCC_APB1ENR;
-		mask = STM32_RCC_PB1_TIM2 << (n - 2);
-	}
-#endif
-
-	if (!mask)
-		return;
-
-	if (enable)
-		*reg |= mask;
-	else
-		*reg &= ~mask;
-}
-
-#if defined(CHIP_FAMILY_STM32L) || defined(CHIP_FAMILY_STM32L4) || \
-	defined(CHIP_FAMILY_STM32F4) || defined(CHIP_FAMILY_STM32H7)
-/* for families using a variable clock feeding the timer */
-static void update_prescaler(void)
-{
-	uint32_t t;
-	/*
-	 * Pre-scaler value :
-	 * the timer is incrementing every microsecond
-	 */
-	STM32_TIM_PSC(TIM_CLOCK32) = (clock_get_timer_freq() / SECOND) - 1;
-	/*
-	 * Forcing reloading the pre-scaler,
-	 * but try to maintain a sensible time-keeping while triggering
-	 * the update event.
-	 */
-	interrupt_disable();
-	/* Ignore the next update */
-	STM32_TIM_DIER(TIM_CLOCK32) &= ~0x0001;
-	/*
-	 * prepare to reload the counter with the current value
-	 * to avoid rolling backward the microsecond counter.
-	 */
-	t = STM32_TIM32_CNT(TIM_CLOCK32) + 1;
-	/* issue an update event, reloads the pre-scaler and the counter */
-	STM32_TIM_EGR(TIM_CLOCK32) = 0x0001;
-	/* clear the 'spurious' update unless we were going to roll-over */
-	if (t)
-		STM32_TIM_SR(TIM_CLOCK32) = ~1;
-	/* restore a sensible time value */
-	STM32_TIM32_CNT(TIM_CLOCK32) = t;
-	/* restore roll-over events */
-	STM32_TIM_DIER(TIM_CLOCK32) |= 0x0001;
-	interrupt_enable();
-
-#ifdef CONFIG_WATCHDOG_HELP
-	/* Watchdog timer runs at 1KHz */
-	STM32_TIM_PSC(TIM_WATCHDOG) =
-		(clock_get_timer_freq()  / SECOND * MSEC)- 1;
-#endif  /* CONFIG_WATCHDOG_HELP */
-}
-DECLARE_HOOK(HOOK_FREQ_CHANGE, update_prescaler, HOOK_PRIO_DEFAULT);
-#endif /* CHIP_FAMILY_STM32L  || CHIP_FAMILY_STM32L4 || */
-	/*  CHIP_FAMILY_STM32F4 || CHIP_FAMILY_STM32H7 */
-
-int __hw_clock_source_init(uint32_t start_t)
-{
-	/* Enable TIM peripheral block clocks */
-	__hw_timer_enable_clock(TIM_CLOCK32, 1);
-	/* Delay 1 APB clock cycle after the clock is enabled */
-	clock_wait_bus_cycles(BUS_APB, 1);
-
-	/*
-	 * Timer configuration : Upcounter, counter disabled, update event only
-	 * on overflow.
-	 */
-	STM32_TIM_CR1(TIM_CLOCK32) = 0x0004;
-	/* No special configuration */
-	STM32_TIM_CR2(TIM_CLOCK32) = 0x0000;
-	STM32_TIM_SMCR(TIM_CLOCK32) = 0x0000;
-
-	/* Auto-reload value : 32-bit free-running counter */
-	STM32_TIM32_ARR(TIM_CLOCK32) = 0xffffffff;
-
-	/* Update prescaler to increment every microsecond */
-	STM32_TIM_PSC(TIM_CLOCK32) = (clock_get_timer_freq() / SECOND) - 1;
-
-	/* Reload the pre-scaler */
-	STM32_TIM_EGR(TIM_CLOCK32) = 0x0001;
-
-	/* Set up the overflow interrupt */
-	STM32_TIM_DIER(TIM_CLOCK32) = 0x0001;
-
-	/* Start counting */
-	STM32_TIM_CR1(TIM_CLOCK32) |= 1;
-
-	/* Override the count with the start value now that counting has
-	 * started. */
-	__hw_clock_source_set(start_t);
-
-	/* Enable timer interrupts */
-	task_enable_irq(IRQ_TIM(TIM_CLOCK32));
-
-	return IRQ_TIM(TIM_CLOCK32);
-}
-
-#ifdef CONFIG_WATCHDOG_HELP
-
-#define IRQ_WD IRQ_TIM(TIM_WATCHDOG)
-
-void __keep watchdog_check(uint32_t excep_lr, uint32_t excep_sp)
-{
-	/* clear status */
-	STM32_TIM_SR(TIM_WATCHDOG) = 0;
-
-	watchdog_trace(excep_lr, excep_sp);
-}
-
-void IRQ_HANDLER(IRQ_WD)(void) __attribute__((naked));
-void IRQ_HANDLER(IRQ_WD)(void)
-{
-	/* Naked call so we can extract raw LR and SP */
-	asm volatile("mov r0, lr\n"
-		     "mov r1, sp\n"
-		     /* Must push registers in pairs to keep 64-bit aligned
-		      * stack for ARM EABI. */
-		     "push {r0, lr}\n"
-		     "bl watchdog_check\n"
-		     "pop {r0,pc}\n");
-}
-const struct irq_priority __keep IRQ_PRIORITY(IRQ_WD)
-	__attribute__((section(".rodata.irqprio")))
-		= {IRQ_WD, 0}; /* put the watchdog at the highest
-					    priority */
-
-void hwtimer_setup_watchdog(void)
-{
-	int freq;
-
-	/* Enable clock */
-	__hw_timer_enable_clock(TIM_WATCHDOG, 1);
-	/* Delay 1 APB clock cycle after the clock is enabled */
-	clock_wait_bus_cycles(BUS_APB, 1);
-
-	/*
-	 * Timer configuration : Up counter, counter disabled, update
-	 * event only on overflow.
-	 */
-	STM32_TIM_CR1(TIM_WATCHDOG) = 0x0004;
-	/* No special configuration */
-	STM32_TIM_CR2(TIM_WATCHDOG) = 0x0000;
-	STM32_TIM_SMCR(TIM_WATCHDOG) = 0x0000;
-
-	/*
-	 * all timers has 16-bit prescale.
-	 * For clock freq > 64MHz, 16bit prescale cannot meet 1KHz.
-	 * set prescale as 10KHz and 10 times arr value instead.
-	 * For clock freq < 64MHz, timer runs at 1KHz.
-	 */
-	freq = clock_get_timer_freq();
-
-	if (freq <= 64000000 || !IS_ENABLED(CHIP_FAMILY_STM32L4)) {
-		/* AUto-reload value */
-		STM32_TIM_ARR(TIM_WATCHDOG) = CONFIG_AUX_TIMER_PERIOD_MS;
-
-		/* Update prescaler: watchdog timer runs at 1KHz */
-		STM32_TIM_PSC(TIM_WATCHDOG) =
-			(freq / SECOND * MSEC) - 1;
-	}
-#ifdef CHIP_FAMILY_STM32L4
-	else {
-		/* 10 times ARR value with 10KHz timer */
-		STM32_TIM_ARR(TIM_WATCHDOG) = CONFIG_AUX_TIMER_PERIOD_MS * 10;
-
-		/* Update prescaler: watchdog timer runs at 10KHz */
-		STM32_TIM_PSC(TIM_WATCHDOG) = (freq / SECOND / 10 * MSEC) - 1;
-	}
-#endif
-	/* Reload the pre-scaler */
-	STM32_TIM_EGR(TIM_WATCHDOG) = 0x0001;
-
-	/* setup the overflow interrupt */
-	STM32_TIM_DIER(TIM_WATCHDOG) = 0x0001;
-	STM32_TIM_SR(TIM_WATCHDOG) = 0;
-
-	/* Start counting */
-	STM32_TIM_CR1(TIM_WATCHDOG) |= 1;
-
-	/* Enable timer interrupts */
-	task_enable_irq(IRQ_WD);
-}
-
-void hwtimer_reset_watchdog(void)
-{
-	STM32_TIM_CNT(TIM_WATCHDOG) = 0x0000;
-}
-
-#endif  /* CONFIG_WATCHDOG_HELP */