[PATCH] m68knommu: use configurable RAM setup in linker script

Remove the fixed RAM configurations for each board type from the
linker script. Replace with simple defines usng the flexible RAM
configuration options. This cleans out of lot of board specific
munging of addresses.

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

diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S
index a331cc9..6a2f0c6 100644 (file)
--- a/arch/m68knommu/kernel/vmlinux.lds.S
+++ b/arch/m68knommu/kernel/vmlinux.lds.S
@@ -1,7 +1,7 @@
 /*
  *     vmlinux.lds.S -- master linker script for m68knommu arch
  *
- *     (C) Copyright 2002-2004, Greg Ungerer <gerg@snapgear.com>
+ *     (C) Copyright 2002-2006, Greg Ungerer <gerg@snapgear.com>
  *
  *     This ends up looking compilcated, because of the number of
  *     address variations for ram and rom/flash layouts. The real
@@ -22,13 +22,7 @@
 #define        ROM_START       0x10c10400
 #define        ROM_LENGTH      0xfec00
 #define        ROM_END         0x10d00000
-#define        RAMVEC_START    0x00000000
-#define        RAMVEC_LENGTH   0x400
-#define        RAM_START       0x10000400
-#define        RAM_LENGTH      0xffc00
-#define        RAM_END         0x10100000
-#define _ramend        _ram_end_notused
-#define        DATA_ADDR       RAM_START
+#define        DATA_ADDR       CONFIG_KERNELBASE
 #endif
 
 /*
@@ -41,11 +35,6 @@
 #define        ROM_START       0x10c10400
 #define        ROM_LENGTH      0x1efc00
 #define        ROM_END         0x10e00000
-#define        RAMVEC_START    0x00000000
-#define        RAMVEC_LENGTH   0x400
-#define        RAM_START       0x00020400
-#define        RAM_LENGTH      0x7dfc00
-#define        RAM_END         0x00800000
 #endif
 #ifdef CONFIG_ROMKERNEL
 #define        ROMVEC_START    0x10c10000
@@ -53,11 +42,6 @@
 #define        ROM_START       0x10c10400
 #define        ROM_LENGTH      0x1efc00
 #define        ROM_END         0x10e00000
-#define        RAMVEC_START    0x00000000
-#define        RAMVEC_LENGTH   0x400
-#define        RAM_START       0x00020000
-#define        RAM_LENGTH      0x600000
-#define        RAM_END         0x00800000
 #endif
 #ifdef CONFIG_HIMEMKERNEL
 #define        ROMVEC_START    0x00600000
@@ -65,141 +49,28 @@
 #define        ROM_START       0x00600400
 #define        ROM_LENGTH      0x1efc00
 #define        ROM_END         0x007f0000
-#define        RAMVEC_START    0x00000000
-#define        RAMVEC_LENGTH   0x400
-#define        RAM_START       0x00020000
-#define        RAM_LENGTH      0x5e0000
-#define        RAM_END         0x00600000
 #endif
 #endif
 
-#ifdef CONFIG_DRAGEN2
-#define        RAM_START       0x10000
-#define        RAM_LENGTH      0x7f0000
-#endif
-
 #ifdef CONFIG_UCQUICC
 #define        ROMVEC_START    0x00000000
 #define        ROMVEC_LENGTH   0x404
 #define        ROM_START       0x00000404
 #define        ROM_LENGTH      0x1ff6fc
 #define        ROM_END         0x00200000
-#define        RAMVEC_START    0x00200000
-#define        RAMVEC_LENGTH   0x404
-#define        RAM_START       0x00200404
-#define        RAM_LENGTH      0x1ff6fc
-#define        RAM_END         0x00400000
-#endif
-
-/*
- *     The standard Arnewsh 5206 board only has 1MiB of ram. Not normally
- *     enough to be useful. Assume the user has fitted something larger,
- *     at least 4MiB in size. No point in not letting the kernel completely
- *     link, it will be obvious if it is too big when they go to load it.
- */
-#if defined(CONFIG_ARN5206)
-#define        RAM_START       0x10000
-#define        RAM_LENGTH      0x3f0000
-#endif
-
-/*
- *     The Motorola 5206eLITE board only has 1MiB of static RAM.
- */
-#if defined(CONFIG_ELITE)
-#define        RAM_START       0x30020000
-#define        RAM_LENGTH      0xe0000
-#endif
-
-/*
- *     All the Motorola eval boards have the same basic arrangement.
- *     The end of RAM will vary depending on how much ram is fitted,
- *     but this isn't important here, we assume at least 4MiB.
- */
-#if defined(CONFIG_M5206eC3) || defined(CONFIG_M5249C3) || \
-    defined(CONFIG_M5272C3) || defined(CONFIG_M5307C3) || \
-    defined(CONFIG_ARN5307) || defined(CONFIG_M5407C3) || \
-    defined(CONFIG_M5271EVB) || defined(CONFIG_M5275EVB) || \
-    defined(CONFIG_M5235EVB)
-#define        RAM_START       0x20000
-#define        RAM_LENGTH      0x3e0000
-#endif
-
-/*
- *     The Freescale 5208EVB board has 32MB of RAM.
- */
-#if defined(CONFIG_M5208EVB)
-#define        RAM_START       0x40020000
-#define        RAM_LENGTH      0x01fe0000
-#endif
-
-/*
- *     The senTec COBRA5272 board has nearly the same memory layout as 
- *     the M5272C3. We assume 16MiB ram.
- */
-#if defined(CONFIG_COBRA5272)
-#define RAM_START   0x20000
-#define RAM_LENGTH  0xfe0000
-#endif
-
-#if defined(CONFIG_M5282EVB)
-#define        RAM_START       0x10000
-#define        RAM_LENGTH      0x3f0000
-#endif
-
-/*
- *     The senTec COBRA5282 board has the same memory layout as the M5282EVB.
- */
-#if defined(CONFIG_COBRA5282)
-#define  RAM_START   0x10000
-#define  RAM_LENGTH  0x3f0000
-#endif
-
-
-/*
- *     The EMAC SoM-5282EM module.
- */
-#if defined(CONFIG_SOM5282EM)
-#define  RAM_START   0x10000
-#define  RAM_LENGTH  0xff0000
-#endif
-
-
-/*
- *     These flash boot boards use all of ram for operation. Again the
- *     actual memory size is not important here, assume at least 4MiB.
- *     They currently have no support for running in flash.
- */
-#if defined(CONFIG_NETtel) || defined(CONFIG_eLIA) || \
-    defined(CONFIG_DISKtel) || defined(CONFIG_SECUREEDGEMP3) || \
-    defined(CONFIG_HW_FEITH)
-#define        RAM_START       0x400
-#define        RAM_LENGTH      0x3ffc00
-#endif
-
-/*
- *     Sneha Boards mimimun memory
- *     The end of RAM will vary depending on how much ram is fitted,
- *     but this isn't important here, we assume at least 4MiB.
- */
-#if defined(CONFIG_CPU16B)   
-#define        RAM_START       0x20000
-#define        RAM_LENGTH      0x3e0000
-#endif
-
-#if defined(CONFIG_MOD5272)
-#define RAM_START      0x02000000
-#define RAM_LENGTH     0x00800000
-#define RAMVEC_START   0x20000000
-#define RAMVEC_LENGTH  0x00000400
 #endif
 
 #if defined(CONFIG_RAMKERNEL)
+#define        RAM_START       CONFIG_KERNELBASE
+#define        RAM_LENGTH      (CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE)
 #define        TEXT            ram
 #define        DATA            ram
 #define        INIT            ram
 #define        BSS             ram
 #endif
 #if defined(CONFIG_ROMKERNEL) || defined(CONFIG_HIMEMKERNEL)
+#define        RAM_START       CONFIG_RAMBASE
+#define        RAM_LENGTH      CONFIG_RAMSIZE
 #define        TEXT            rom
 #define        DATA            ram
 #define        INIT            ram
@@ -215,13 +86,7 @@ OUTPUT_ARCH(m68k)
 ENTRY(_start)
 
 MEMORY {
-#ifdef RAMVEC_START
-       ramvec  : ORIGIN = RAMVEC_START, LENGTH = RAMVEC_LENGTH
-#endif
        ram     : ORIGIN = RAM_START, LENGTH = RAM_LENGTH
-#ifdef RAM_END
-       eram    : ORIGIN = RAM_END, LENGTH = 0
-#endif
 #ifdef ROM_START
        romvec  : ORIGIN = ROMVEC_START, LENGTH = ROMVEC_LENGTH
        rom     : ORIGIN = ROM_START, LENGTH = ROM_LENGTH
@@ -308,12 +173,6 @@ SECTIONS {
                __rom_end = . ;
        } > erom
 #endif
-#ifdef RAMVEC_START
-       . = RAMVEC_START ;
-       .ramvec : {
-               __ramvec = .;
-       } > ramvec
-#endif
 
        .data DATA_ADDR : {
                . = ALIGN(4);
@@ -373,12 +232,5 @@ SECTIONS {
                _ebss = . ;
        } > BSS
 
-#ifdef RAM_END
-       . = RAM_END ;
-       .eram : {
-               __ramend = . ;
-               _ramend = . ;
-       } > eram
-#endif
 }