[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>

diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index 8b6e723eb82bb30371a02aed5508490a74caa9b1..e767f2ddae72a0ca59dabb0e6e16bbfcc8ea11e7 100644 (file)
--- 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---