[PATCH] m68knommu: configuration options for ROM region

Use Kconfig options to setup the optional ROM region used on some
platforms. We used to define this in the linker script on a per
board basis. The configure options are more flexible and clean up
the linker script a lot.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index 8b6e723eb82b..e767f2ddae72 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -540,6 +540,59 @@ config RAM32BIT
 
 endchoice
 
+comment "ROM configuration"
+
+config ROM
+        bool "Specify ROM linker regions"
+        default n
+        help
+          Define a ROM region for the linker script. This creates a kernel
+          that can be stored in flash, with possibly the text, and data
+          regions being copied out to RAM at startup.
+
+config ROMBASE
+        hex "Address of the base of ROM device"
+        default "0"
+        depends on ROM
+        help
+          Define the address that the ROM region starts at. Some platforms
+          use this to set their chip select region accordingly for the boot
+          device.
+
+config ROMVEC
+        hex "Address of the base of the ROM vectors"
+        default "0"
+        depends on ROM
+        help
+          This is almost always the same as the base of the ROM. Since on all
+          68000 type varients the vectors are at the base of the boot device
+          on system startup.
+
+config ROMVECSIZE
+        hex "Size of ROM vector region (in bytes)"
+        default "0x400"
+        depends on ROM
+        help
+          Define the size of the vector region in ROM. For most 68000
+          varients this would be 0x400 bytes in size. Set to 0 if you do
+          not want a vector region at the start of the ROM.
+
+config ROMSTART
+        hex "Address of the base of system image in ROM"
+        default "0x400"
+        depends on ROM
+        help
+          Define the start address of the system image in ROM. Commonly this
+          is strait after the ROM vectors.
+
+config ROMSIZE
+        hex "Size of the ROM device"
+        default "0x100000"
+        depends on ROM
+        help
+          Size of the ROM device. On some platforms this is used to setup
+          the chip select that controls the boot ROM device.
+
 choice
         prompt "Kernel executes from"
         ---help---