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drivers: counter: systimer: esp32c2: Fix clock parameters

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Fix clock source frequency for systimer and GP timer.

Signed-off-by: Raffael Rostagno <raffael.rostagno@espressif.com>
This commit is contained in:
Raffael Rostagno 2024-10-12 16:51:40 -03:00 • committed by David Leach
commit 4be1897519
2 changed files with 18 additions and 7 deletions
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17
drivers/counter/counter_esp32_tmr.c
View file

@ -256,6 +256,13 @@ static void counter_esp32_isr(void *arg)
timer_ll_clear_intr_status(data->hal_ctx.dev, TIMER_LL_EVENT_ALARM(data->hal_ctx.timer_id));
}
#if defined(CONFIG_SOC_SERIES_ESP32C2)
#define CLK_LL_PLL_40M_FREQ MHZ(40)
#define CLOCK_SOURCE_FREQ CLK_LL_PLL_40M_FREQ
#else
#define CLOCK_SOURCE_FREQ APB_CLK_FREQ
#endif
#define ESP32_COUNTER_GET_CLK_DIV(idx) \
(((DT_INST_PROP(idx, prescaler) & UINT16_MAX) < 2) ? \
2 : (DT_INST_PROP(idx, prescaler) & UINT16_MAX))
@ -265,11 +272,11 @@ static void counter_esp32_isr(void *arg)
static struct counter_esp32_data counter_data_##idx; \
\
static const struct counter_esp32_config counter_config_##idx = { \
.counter_info = { \
.max_top_value = UINT32_MAX, \
.freq = (APB_CLK_FREQ / ESP32_COUNTER_GET_CLK_DIV(idx)), \
.flags = COUNTER_CONFIG_INFO_COUNT_UP, \
.channels = 1 \
.counter_info = { \
.max_top_value = UINT32_MAX, \
.freq = (CLOCK_SOURCE_FREQ / ESP32_COUNTER_GET_CLK_DIV(idx)), \
.flags = COUNTER_CONFIG_INFO_COUNT_UP, \
.channels = 1 \
}, \
.config = { \
.alarm_en = TIMER_ALARM_DIS, \

8
soc/espressif/common/Kconfig.defconfig
View file

@ -21,9 +21,13 @@ config ISR_STACK_SIZE
config ATOMIC_OPERATIONS_C
default y
config XTAL_FREQ_HZ
int
default $(dt_node_int_prop_int,/cpus/cpu@0,xtal-freq)
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 12000000 if SOC_SERIES_ESP32C2
default 16000000 if SOC_SERIES_ESP32C3 || SOC_SERIES_ESP32C6
default 10400000 if XTAL_FREQ_HZ = 26000000
default 16000000 if XTAL_FREQ_HZ = 40000000
config SYS_CLOCK_TICKS_PER_SEC
default 1000