env: Added support to save env to spi through Kconfig

This patch added support to enable CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET
and CONFIG_ENV_SECT_SIZE through Kconfig for Zynq and Zynqmp.

Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

configs/bitmain_antminer_s9_defconfig

@@ -4,6 +4,7 @@ CONFIG_SYS_BOARD="antminer_s9"
 CONFIG_SYS_CONFIG_NAME="bitmain_antminer_s9"
 CONFIG_ARCH_ZYNQ=y
 CONFIG_SYS_TEXT_BASE=0x4000000
+CONFIG_ENV_OFFSET=0x300000
 CONFIG_SPL=y
 CONFIG_DEBUG_UART_BASE=0xe0001000
 CONFIG_DEBUG_UART_CLOCK=50000000

env/Kconfig

@@ -480,6 +480,34 @@ config ENV_SIZE
 
 endif
 
+if ARCH_ZYNQMP || ARCH_ZYNQ
+
+config ENV_OFFSET
+	hex "Environment Offset"
+	depends on !ENV_IS_NOWHERE
+	default 0x1E00000 if ARCH_ZYNQMP
+	default 0xE0000 if ARCH_ZYNQ
+	help
+	  Offset from the start of the device (or partition)
+
+config ENV_SIZE
+	hex "Environment Size"
+	default 0x40000 if ENV_IS_IN_SPI_FLASH && ARCH_ZYNQMP
+	default 0x8000 if ARCH_ZYNQMP
+	default 0x20000 if ARCH_ZYNQ
+	help
+	  Size of the environment storage area.
+
+config ENV_SECT_SIZE
+	hex "Environment Sector-Size"
+	depends on !ENV_IS_NOWHERE
+	default 0x40000 if ARCH_ZYNQMP
+	default 0x20000 if ARCH_ZYNQ
+	help
+	  Size of the sector containing the environment.
+
+endif
+
 config USE_DEFAULT_ENV_FILE
 	bool "Create default environment from file"
 	help

include/configs/bitmain_antminer_s9.h

@@ -9,9 +9,6 @@
 #define CONFIG_SYS_SDRAM_BASE	0x00000000
 #define CONFIG_SYS_SDRAM_SIZE	0x40000000
 
-#define CONFIG_ENV_SIZE		0x20000
-#define CONFIG_ENV_OFFSET	0x300000
-
 #define CONFIG_BOOTP_SERVERIP
 
 #define CONFIG_EXTRA_ENV_SETTINGS \

include/configs/xilinx_zynqmp.h

@@ -99,9 +99,6 @@
 # define PARTS_DEFAULT
 #endif
 
-/* Do not preserve environment */
-#define CONFIG_ENV_SIZE			0x8000
-
 /* Monitor Command Prompt */
 /* Console I/O Buffer Size */
 #define CONFIG_SYS_CBSIZE		2048

include/configs/zynq-common.h

@@ -121,22 +121,9 @@
 # define CONFIG_SYS_EEPROM_SIZE			1024 /* Bytes */
 #endif
 
-/* Total Size of Environment Sector */
-#ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE			(128 << 10)
-#endif
-
 /* Allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
 
-/* Environment */
-#ifndef CONFIG_ENV_IS_NOWHERE
-# define CONFIG_ENV_SECT_SIZE		CONFIG_ENV_SIZE
-# ifndef CONFIG_ENV_OFFSET
-#  define CONFIG_ENV_OFFSET		0xE0000
-# endif
-#endif
-
 /* enable preboot to be loaded before CONFIG_BOOTDELAY */
 #define CONFIG_PREBOOT