[PATCH u-boot-mvebu v2] arm: mvebu: armada-3720: remove unused config option

[Marek Behún]

The config option CONFIG_DEBUG_UART_CLOCK is not used by Armada 3720's
serial driver (it wasn't even before the recent update of that driver).

Even if it was used, the value was incorrect (the frequency of the clock
is 25 MHz, not 25.8048 MHz).

Remove it from config files and set the default value to 0.

Signed-off-by: Marek Behún <marek.behun at nic.cz>
Cc: Stefan Roese <sr at denx.de>
Cc: Pali Rohár <pali at kernel.org>
---
Change since v1:
- we also need to specify a default value for this variable in Kconfig,
  otherwise the make command will ask for a value. Use 0 for the default
  value since it is not used
- updated commit message
---
 configs/mvebu_db-88f3720_defconfig          | 1 -
 configs/mvebu_espressobin-88f3720_defconfig | 1 -
 configs/turris_mox_defconfig                | 1 -
 configs/uDPU_defconfig                      | 1 -
 drivers/serial/Kconfig                      | 1 +
 5 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/configs/mvebu_db-88f3720_defconfig b/configs/mvebu_db-88f3720_defconfig
index c9935da102..ff4668e837 100644
--- a/configs/mvebu_db-88f3720_defconfig
+++ b/configs/mvebu_db-88f3720_defconfig
@@ -11,7 +11,6 @@ CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="armada-3720-db"
 CONFIG_DEBUG_UART_BASE=0xd0012000
-CONFIG_DEBUG_UART_CLOCK=25804800
 CONFIG_DEBUG_UART=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y
diff --git a/configs/mvebu_espressobin-88f3720_defconfig b/configs/mvebu_espressobin-88f3720_defconfig
index 157a4b7cb2..dc199cfe50 100644
--- a/configs/mvebu_espressobin-88f3720_defconfig
+++ b/configs/mvebu_espressobin-88f3720_defconfig
@@ -11,7 +11,6 @@ CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="armada-3720-espressobin"
 CONFIG_DEBUG_UART_BASE=0xd0012000
-CONFIG_DEBUG_UART_CLOCK=25804800
 CONFIG_DEBUG_UART=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y
diff --git a/configs/turris_mox_defconfig b/configs/turris_mox_defconfig
index 2c6f4938db..b3458acb98 100644
--- a/configs/turris_mox_defconfig
+++ b/configs/turris_mox_defconfig
@@ -11,7 +11,6 @@ CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="armada-3720-turris-mox"
 CONFIG_DEBUG_UART_BASE=0xd0012000
-CONFIG_DEBUG_UART_CLOCK=25804800
 CONFIG_DEBUG_UART=y
 CONFIG_OF_BOARD_FIXUP=y
 CONFIG_DISTRO_DEFAULTS=y
diff --git a/configs/uDPU_defconfig b/configs/uDPU_defconfig
index cdf6b2274c..649248d74d 100644
--- a/configs/uDPU_defconfig
+++ b/configs/uDPU_defconfig
@@ -10,7 +10,6 @@ CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="armada-3720-uDPU"
 CONFIG_DEBUG_UART_BASE=0xd0012000
-CONFIG_DEBUG_UART_CLOCK=25804800
 CONFIG_DEBUG_UART=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 961e3fb031..93348c0929 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -443,6 +443,7 @@ config DEBUG_UART_CLOCK
 	int "UART input clock"
 	depends on DEBUG_UART
 	default 0 if DEBUG_UART_SANDBOX
+	default 0 if DEBUG_MVEBU_A3700_UART
 	help
 	  The UART input clock determines the speed of the internal UART
 	  circuitry. The baud rate is derived from this by dividing the input
-- 
2.31.1