[PATCH v3 2/2] configs: Add support in Kconfig and convert for armada boards

[Venkatesh Yadav Abbarapu]

From: Algapally Santosh Sagar <santoshsagar.algapally at amd.com>

The SERIAL_DT_BAUD is added to Kconfig and the DEFAULT_ENV_IS_RW is moved
to the Kconfig for easier configuration.
Hence, the CONFIG_DEFAULT_ENV_IS_RW config is added to the defconfig files
to allow enabling them for armada boards.

Signed-off-by: Algapally Santosh Sagar <santoshsagar.algapally at amd.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu at amd.com>
---
 configs/mvebu_db-88f3720_defconfig          |  1 +
 configs/mvebu_espressobin-88f3720_defconfig |  1 +
 configs/mvebu_mcbin-88f8040_defconfig       |  1 +
 drivers/serial/Kconfig                      | 16 ++++++++++++++++
 include/configs/mvebu_armada-37xx.h         |  1 -
 5 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/configs/mvebu_db-88f3720_defconfig b/configs/mvebu_db-88f3720_defconfig
index ed0d28fd7d..e3bbaa2173 100644
--- a/configs/mvebu_db-88f3720_defconfig
+++ b/configs/mvebu_db-88f3720_defconfig
@@ -21,6 +21,7 @@ CONFIG_USE_PREBOOT=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_DEFAULT_ENV_IS_RW=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_ARCH_EARLY_INIT_R=y
 CONFIG_BOARD_EARLY_INIT_F=y
diff --git a/configs/mvebu_espressobin-88f3720_defconfig b/configs/mvebu_espressobin-88f3720_defconfig
index ce696787e8..a06eb2dd42 100644
--- a/configs/mvebu_espressobin-88f3720_defconfig
+++ b/configs/mvebu_espressobin-88f3720_defconfig
@@ -22,6 +22,7 @@ CONFIG_USE_PREBOOT=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_DEFAULT_ENV_IS_RW=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_ARCH_EARLY_INIT_R=y
 CONFIG_BOARD_EARLY_INIT_F=y
diff --git a/configs/mvebu_mcbin-88f8040_defconfig b/configs/mvebu_mcbin-88f8040_defconfig
index 058c04333a..4ee5f242f7 100644
--- a/configs/mvebu_mcbin-88f8040_defconfig
+++ b/configs/mvebu_mcbin-88f8040_defconfig
@@ -22,6 +22,7 @@ CONFIG_USE_PREBOOT=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_DEFAULT_ENV_IS_RW=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_ARCH_EARLY_INIT_R=y
 CONFIG_BOARD_EARLY_INIT_F=y
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 10d07daf27..96cea87f45 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -24,6 +24,22 @@ config BAUDRATE
 	  in the SPL stage (most drivers) or for choosing a default baudrate
 	  in the absence of an environment setting (serial_mxc.c).
 
+config SERIAL_DT_BAUD
+	bool "Fetch serial baudrate from device tree"
+	depends on DM_SERIAL && SPL_ENV_SUPPORT
+	select DEFAULT_ENV_IS_RW
+	help
+	  Select this to enable fetching and setting of the baudrate
+	  configured in the DT. Replace the default baudrate with the DT
+	  baudrate and also set it to the environment.
+
+config DEFAULT_ENV_IS_RW
+	bool "Make default environment as writable"
+	depends on DM_SERIAL
+	help
+	  Select this to enable to make default environment writable. This
+	  allows modifying the default environment.
+
 config REQUIRE_SERIAL_CONSOLE
 	bool "Require a serial port for console"
 	# Running without a serial console is not supported by the
diff --git a/include/configs/mvebu_armada-37xx.h b/include/configs/mvebu_armada-37xx.h
index 76e148f55e..18b55be0d8 100644
--- a/include/configs/mvebu_armada-37xx.h
+++ b/include/configs/mvebu_armada-37xx.h
@@ -30,7 +30,6 @@
 /*
  * Environment
  */
-#define DEFAULT_ENV_IS_RW		/* required for configuring default fdtfile= */
 
 #ifdef CONFIG_MMC
 #define BOOT_TARGET_DEVICES_MMC(func, i) func(MMC, mmc, i)
-- 
2.17.1