Commit 3932b9ca authored by Max Filippov's avatar Max Filippov

xtensa: make PLATFORM_DEFAULT_MEM parameters configurable

This allows using xtfpga platform with both MMU and noMMU cores.
Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 5a0b1d78
...@@ -319,6 +319,7 @@ config XTENSA_PLATFORM_S6105 ...@@ -319,6 +319,7 @@ config XTENSA_PLATFORM_S6105
config XTENSA_PLATFORM_XTFPGA config XTENSA_PLATFORM_XTFPGA
bool "XTFPGA" bool "XTFPGA"
select ETHOC if ETHERNET select ETHOC if ETHERNET
select PLATFORM_WANT_DEFAULT_MEM
select SERIAL_CONSOLE select SERIAL_CONSOLE
select XTENSA_CALIBRATE_CCOUNT select XTENSA_CALIBRATE_CCOUNT
help help
...@@ -405,6 +406,41 @@ source "drivers/pcmcia/Kconfig" ...@@ -405,6 +406,41 @@ source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig" source "drivers/pci/hotplug/Kconfig"
config PLATFORM_WANT_DEFAULT_MEM
def_bool n
config DEFAULT_MEM_START
hex "Physical address of the default memory area start"
depends on PLATFORM_WANT_DEFAULT_MEM
default 0x00000000 if MMU
default 0x40000000 if !MMU
help
This is a fallback start address of the default memory area, it is
used when no physical memory size is passed through DTB or through
boot parameter from bootloader.
In noMMU configuration the following parameters are derived from it:
- kernel load address;
- kernel entry point address;
- relocatable vectors base address;
- uBoot load address;
- TASK_SIZE.
If unsure, leave the default value here.
config DEFAULT_MEM_SIZE
hex "Maximal size of the default memory area"
depends on PLATFORM_WANT_DEFAULT_MEM
default 0x04000000
help
This is a fallback size of the default memory area, it is used when
no physical memory size is passed through DTB or through boot
parameter from bootloader.
It's also used for TASK_SIZE calculation in noMMU configuration.
If unsure, leave the default value here.
endmenu endmenu
menu "Executable file formats" menu "Executable file formats"
......
...@@ -17,8 +17,8 @@ ...@@ -17,8 +17,8 @@
/* Memory configuration. */ /* Memory configuration. */
#define PLATFORM_DEFAULT_MEM_START 0x00000000 #define PLATFORM_DEFAULT_MEM_START CONFIG_DEFAULT_MEM_START
#define PLATFORM_DEFAULT_MEM_SIZE 0x04000000 #define PLATFORM_DEFAULT_MEM_SIZE CONFIG_DEFAULT_MEM_SIZE
/* Interrupt configuration. */ /* Interrupt configuration. */
......
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