Convert CONFIG_PHYSMEM to Kconfig

This converts the following to Kconfig:
   CONFIG_PHYSMEM

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Sean Anderson <seanga2@gmail.com>

README

@@ -1692,14 +1692,6 @@ The following options need to be configured:
 			HERMES, IP860, RPXlite, LWMON,
 			FLAGADM
 
-- Access to physical memory region (> 4GB)
-		Some basic support is provided for operations on memory not
-		normally accessible to U-Boot - e.g. some architectures
-		support access to more than 4GB of memory on 32-bit
-		machines using physical address extension or similar.
-		Define CONFIG_PHYSMEM to access this basic support, which
-		currently only supports clearing the memory.
-
 - Error Recovery:
 		CONFIG_NET_RETRY_COUNT
 

arch/Kconfig

@@ -195,6 +195,7 @@ config SANDBOX
 	imply DM_DSA
 	imply CMD_EXTENSION
 	imply KEYBOARD
+	imply PHYSMEM
 
 config SH
 	bool "SuperH architecture"
@@ -246,6 +247,7 @@ config X86
 	imply USB_ETHER_SMSC95XX
 	imply USB_HOST_ETHER
 	imply PCH
+	imply PHYSMEM
 	imply RTC_MC146818
 	imply ACPIGEN if !QEMU
 	imply SYSINFO if GENERATE_SMBIOS_TABLE

include/configs/edison.h

@@ -14,9 +14,6 @@
 #define CONFIG_SYS_MAXARGS	128
 #define CONFIG_SYS_BARGSIZE	CONFIG_SYS_CBSIZE
 
-/* Memory */
-#define CONFIG_PHYSMEM
-
 #define CONFIG_SYS_STACK_SIZE			(32 * 1024)
 
 #define CONFIG_SYS_MONITOR_BASE			CONFIG_SYS_TEXT_BASE

include/configs/sandbox.h

@@ -14,8 +14,6 @@
 
 #define CONFIG_SYS_CBSIZE		1024	/* Console I/O Buffer Size */
 
-#define CONFIG_PHYSMEM
-
 /* Size of our emulated memory */
 #define SB_CONCAT(x, y) x ## y
 #define SB_TO_UL(s) SB_CONCAT(s, UL)

include/configs/x86-common.h

@@ -14,8 +14,6 @@
  * High Level Configuration Options
  * (easy to change)
  */
-#define CONFIG_PHYSMEM
-
 #define CONFIG_SYS_BOOTM_LEN		(16 << 20)
 
 /* SATA AHCI storage */

lib/Kconfig

@@ -15,6 +15,16 @@ config SYS_NUM_ADDR_MAP
 	help
 	  Sets the number of entries in the virtual-physical mapping table.
 
+config PHYSMEM
+	bool "Access to physical memory region (> 4G)"
+	help
+	  Some basic support is provided for operations on memory not
+	  normally accessible to 32-bit U-Boot - e.g. some architectures
+	  support access to more than 4G of memory on 32-bit
+	  machines using physical address extension or similar.
+	  Enable this to access this basic support, which only supports clearing
+	  the memory.
+
 config BCH
 	bool "Enable Software based BCH ECC"
 	help

scripts/config_whitelist.txt

@@ -911,7 +911,6 @@ CONFIG_PCI_SYS_BUS
 CONFIG_PCI_SYS_PHYS
 CONFIG_PCI_SYS_SIZE
 CONFIG_PEN_ADDR_BIG_ENDIAN
-CONFIG_PHYSMEM
 CONFIG_PHY_BASE_ADR
 CONFIG_PHY_ET1011C_TX_CLK_FIX
 CONFIG_PHY_ID