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soc: atmel_sam: set SYS_CLOCK_HW_CYCLES_PER_SEC from DT

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Set the defalut value of SYS_CLOCK_HW_CYCLES_PER_SEC Kconfig option
from the Device Tree. The `clock-frequency` property of the DT cpu@0
node is a single source of truth defining the CPU frequency. This is
the value used e.g. by all Atmel drivers.

For Atmel SAM family CPU clock is currently the only supported system
clock source. Ensure that kernel understanding of the hardware clock
frequency is the correct one.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
This commit is contained in:
Piotr Mienkowski 2021-06-20 03:14:50 +02:00 committed by Anas Nashif
parent ef3c8507a6
commit 471d5ea474
11 changed files with 7 additions and 23 deletions
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1
boards/arm/sam_e70_xplained/sam_e70_xplained_defconfig
View file

@ -5,7 +5,6 @@ CONFIG_SOC_PART_NUMBER_SAME70Q21=y
CONFIG_SOC_ATMEL_SAME70_EXT_MAINCK=y
CONFIG_SOC_ATMEL_SAME70_PLLA_MULA=24
CONFIG_SOC_ATMEL_SAME70_PLLA_DIVA=1
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=300000000
CONFIG_ARM_MPU=y
CONFIG_CORTEX_M_SYSTICK=y
CONFIG_CONSOLE=y

1
boards/arm/sam_e70_xplained/sam_e70b_xplained_defconfig
View file

@ -5,7 +5,6 @@ CONFIG_SOC_PART_NUMBER_SAME70Q21B=y
CONFIG_SOC_ATMEL_SAME70_EXT_MAINCK=y
CONFIG_SOC_ATMEL_SAME70_PLLA_MULA=24
CONFIG_SOC_ATMEL_SAME70_PLLA_DIVA=1
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=300000000
CONFIG_ARM_MPU=y
CONFIG_CORTEX_M_SYSTICK=y
CONFIG_CONSOLE=y

1
boards/arm/sam_v71_xult/sam_v71_xult_defconfig
View file

@ -5,7 +5,6 @@ CONFIG_SOC_PART_NUMBER_SAMV71Q21=y
CONFIG_SOC_ATMEL_SAMV71_EXT_MAINCK=y
CONFIG_SOC_ATMEL_SAMV71_PLLA_MULA=24
CONFIG_SOC_ATMEL_SAMV71_PLLA_DIVA=1
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=300000000
CONFIG_ARM_MPU=y
CONFIG_CORTEX_M_SYSTICK=y
CONFIG_CONSOLE=y

1
boards/arm/sam_v71_xult/sam_v71b_xult_defconfig
View file

@ -5,7 +5,6 @@ CONFIG_SOC_PART_NUMBER_SAMV71Q21B=y
CONFIG_SOC_ATMEL_SAMV71_EXT_MAINCK=y
CONFIG_SOC_ATMEL_SAMV71_PLLA_MULA=24
CONFIG_SOC_ATMEL_SAMV71_PLLA_DIVA=1
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=300000000
CONFIG_ARM_MPU=y
CONFIG_CORTEX_M_SYSTICK=y
CONFIG_CONSOLE=y

8
soc/arm/atmel_sam/Kconfig.defconfig
View file

@ -5,6 +5,12 @@
source "soc/arm/atmel_sam/*/Kconfig.defconfig.series"
if SOC_FAMILY_SAM
config SYS_CLOCK_HW_CYCLES_PER_SEC
default $(dt_node_int_prop_int,/cpus/cpu@0,clock-frequency)
config WATCHDOG
default y
depends on SOC_FAMILY_SAM
endif # SOC_FAMILY_SAM

3
soc/arm/atmel_sam/sam3x/Kconfig.defconfig.series
View file

@ -24,7 +24,4 @@ config SOC_PART_NUMBER
config NUM_IRQS
default 45
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 84000000
endif # SOC_SERIES_SAM3X

3
soc/arm/atmel_sam/sam4e/Kconfig.defconfig.series
View file

@ -23,9 +23,6 @@ config SOC_PART_NUMBER
config NUM_IRQS
default 47
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 120000000
config GPIO_SAM
default y
depends on GPIO

3
soc/arm/atmel_sam/sam4l/Kconfig.defconfig.series
View file

@ -33,9 +33,6 @@ config SOC_PART_NUMBER
config NUM_IRQS
default 80
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 48000000
# Configure default device drivers. If a feature is supported by more than one
# device driver the default configuration will be placed in the board defconfig
# file.

3
soc/arm/atmel_sam/sam4s/Kconfig.defconfig.series
View file

@ -28,9 +28,6 @@ config SOC_PART_NUMBER
config NUM_IRQS
default 35
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 120000000
config GPIO_SAM
default y
depends on GPIO

3
soc/arm/atmel_sam/same70/Kconfig.defconfig.series
View file

@ -37,9 +37,6 @@ config NUM_IRQS
default 74 if SOC_ATMEL_SAME70_REVB
default 71
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 300000000
# Configure default device drivers. If a feature is supported by more than one
# device driver the default configuration will be placed in the board defconfig
# file.

3
soc/arm/atmel_sam/samv71/Kconfig.defconfig.series
View file

@ -38,9 +38,6 @@ config NUM_IRQS
default 74 if SOC_ATMEL_SAMV71_REVB
default 71
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 300000000
# Configure default device drivers. If a feature is supported by more than one
# device driver the default configuration will be placed in the board defconfig
# file.