diff options
Diffstat (limited to 'nuttx/arch/z80/src/z180/Kconfig')
| -rw-r--r-- | nuttx/arch/z80/src/z180/Kconfig | 101 |
1 files changed, 93 insertions, 8 deletions
diff --git a/nuttx/arch/z80/src/z180/Kconfig b/nuttx/arch/z80/src/z180/Kconfig index 4eafa8da8..58abbd6f2 100644 --- a/nuttx/arch/z80/src/z180/Kconfig +++ b/nuttx/arch/z80/src/z180/Kconfig @@ -21,30 +21,115 @@ config Z180_TOOLCHAIN_SDCCW endchoice config LINKER_HOME_AREA - hex "Start of _HOME area" + hex "Physical start of _HOME area" default 0x0000 ---help--- - Start of the linker HOME area. Default: 0x0000 + Physical address of the start of the linker HOME area. Default: 0x0000 config LINKER_CODE_AREA - hex "Start of _CODE area" + hex "Physical start of _CODE area" default 0x0200 ---help--- - Start of the linker _CODE area. Default: 0x0200 + Physical address of the start of the linker _CODE area. Default: 0x0200 config LINKER_DATA_AREA - hex "Start of _DATA area" + hex "Physical start of _DATA area" default 0x8000 ---help--- - Start of the linker _DATA area. Default: 0x8000 + Physical address of the start of the linker _DATA area. Default: 0x8000 config LINKER_ROM_AT_0000 - bool "ROM at 0x0000" + bool "ROM at Physical 0x0000" default n ---help--- - Some architectures may have ROM located at address zero. In this + Some architectures may have ROM located at physical address zero. In this case, a special version of the "head" file must be used. +config Z180_BANKAREA_VIRTBASE + hex "Virtual Start of Bank Area" + default 0x8000 + ---help--- + This setting provides the virtual address of the start of the Bank Area. + NOTE that 0x0000 <= Z180_BANKAREA_BASE <= Z180_COMMONAREA_BASE is required! + Default: 0x8000 + + NuttX Memory Organization: + + Common Area 0: This area holds the common NuttX code that is + directly call-able from all application threads. Common Area + always starts at virtual address 0x0000 and extends to the + Bank Area + + Base Area: This area holds the common NuttX data (including the + share-able heap) that is accessible from all applications and + extends to Common Area 1. + + NOTE: That is execution from RAM, the common NuttX code and + data may be contiguous and lie in the same region (either + Common Area 0 or the Bank Area). The two regions above would + apply in a ROM'ed system, where Common Area 1 is ROM and the + Base Area is RAM. + + Common Area 1: This area holds the code and data that is unique + to a particular task. his area extends to the end of the virtual + address space. All tasks share the same virtual Common Area 2 + virtual address (but each has a unique mapping to different, + underlying physical addresses). + +config Z180_BANKAREA_PHYSBASE + hex "Physical Start of Bank Area" + default 0x08000 + ---help--- + This setting provides the physical address of the start of the Bank Area. + Default: 0x08000 + +config Z180_COMMON1AREA_VIRTBASE + hex "Virtual Start of Common Area 1" + default 0xc000 + ---help--- + This setting provides the virtual address of the start of the Common + Area 1. NOTE that 0x0000 <= Z180_BANKAREA_BASE <= Z180_COMMONAREA_BASE + is required! Default: 0xc000 + + NuttX Memory Organization: + + Common Area 0: This area holds the common NuttX code that is + directly call-able from all application threads. Common Area + always starts at virtual address 0x0000 and extends to the + Bank Area + + Base Area: This area holds the common NuttX data (including the + share-able heap) that is accessible from all applications and + extends to Common Area 1. + + NOTE: That is execution from RAM, the common NuttX code and + data may be contiguous and lie in the same region (either + Common Area 0 or the Bank Area). The two regions above would + apply in a ROM'ed system, where Common Area 1 is ROM and the + Base Area is RAM. + + Common Area 1: This area holds the code and data that is unique + to a particular task. his area extends to the end of the virtual + address space. All tasks share the same virtual Common Area 2 + virtual address (but each has a unique mapping to different, + underlying physical addresses). + +config Z180_PHYSHEAP_START + hex "Physical Start of Free Memory" + default 0x0c000 + ---help--- + This setting provides the physical address of the start of free physical + memory that will be used to allocate memory for tasks (Common Area 1). + Default: 0x0c000 + +config Z180_PHYSHEAP_END + hex "Physical End(+1) of Free Memory" + default 0x100000 + ---help--- + This setting provides the physical address of the end(+1) of free physical + memory that will be used to allocate memory for tasks (Common Area 1). + Default: 0x100000 + config ARCH_HAVEHEAD bool "Board-specific Head File" default n |