Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[PATCH] m68knommu: use Kconfig RAM config options in 68360 RAM startup code

Browse source 
Switch to using the new RAM Kconfig settings, instead of linker defined
regions in RAM specific 68360 startup code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Greg Ungerer 2006-06-27 13:27:08 +10:00 committed by Linus Torvalds
parent 999567d829
commit d046f6118b
1 changed files with 7 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
arch/m68knommu/platform/68360/head-ram.S
View file

@ -18,7 +18,6 @@
.global _start
.global _rambase
.global __ramvec
.global _ramvec
.global _ramstart
.global _ramend
@ -26,6 +25,8 @@
.global _quicc_base
.global _periph_base
#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE)
#define REGB 0x1000
#define PEPAR (_dprbase + REGB + 0x0016)
#define GMR (_dprbase + REGB + 0x0040)
@ -103,7 +104,7 @@ _stext:
nop
ori.w #MCU_DISABLE_INTRPTS, %sr /* disable interrupts: */
/* We should not need to setup the boot stack the reset should do it. */
movea.l #__ramend, %sp /*set up stack at the end of DRAM:*/
movea.l #RAMEND, %sp /*set up stack at the end of DRAM:*/
set_mbar_register:
moveq.l #0x07, %d1 /* Setup MBAR */
@ -163,7 +164,7 @@ configure_memory_controller:
move.l %d0, GMR
configure_chip_select_0:
move.l #__ramend, %d0
move.l #RAMEND, %d0
subi.l #__ramstart, %d0
subq.l #0x01, %d0
eori.l #SIM_OR_MASK, %d0
@ -234,16 +235,10 @@ store_ram_size:
/* Set ram size information */
move.l #_sdata, _rambase
move.l #_ebss, _ramstart
move.l #__ramend, %d0
move.l #RAMEND, %d0
sub.l #0x1000, %d0 /* Reserve 4K for stack space.*/
move.l %d0, _ramend /* Different from __ramend.*/
move.l %d0, _ramend /* Different from RAMEND.*/
store_flash_size:
/* Set rom size information */
move.l #__rom_end, %d0
sub.l #__rom_start, %d0
move.l %d0, rom_length
pea 0
pea env
pea %sp@(4)
@ -286,7 +281,7 @@ _dprbase:
*/
.section ".data.initvect","awx"
.long __ramend /* Reset: Initial Stack Pointer - 0. */
.long RAMEND /* Reset: Initial Stack Pointer - 0. */
.long _start /* Reset: Initial Program Counter - 1. */
.long buserr /* Bus Error - 2. */
.long trap /* Address Error - 3. */