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Add banked and non-banked configurations

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2322 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-12-11 23:46:08 +00:00
parent e9a55b8502
commit d35d237154
2 changed files with 36 additions and 36 deletions
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48
arch/hc/src/mc9s12ne64/mc9s12ne64_start.S
View File

@ -94,6 +94,15 @@
movb #INITRM_MAP, HCS12_MMC_INITRM /* Set RAM position to 0x2000-0x3fff */
movb #INITEE_EE, HCS12_MMC_INITEE /* Set EEPROM position to 0x0800 */
/* In the non-banked mode, PPAGE is set to 0x3d to create a contiguous, 48Kb
* .text address space.
*/
#ifdef CONFIG_HCS12_NONBANKED
movb #0x3d, HCS12_MMC_PPAGE
#endif
movb #MMC_MISC_ROMON, HCS12_MMC_MISC /* MISC: EXSTR1=0 EXSTR0=0 ROMHM=0 ROMON=1 */
.endm
@ -188,7 +197,11 @@ __start:
/* Now, start the OS */
showprogress '\n'
#ifdef CONFIG_HCS12_NONBANKED
jsr os_start
#else
call os_start
#endif
bra __start
/* Variables:
@ -201,32 +214,37 @@ __start:
*/
.Lsbss:
.long _sbss
.hword _sbss
.Lebss:
.long _ebss
.hword _ebss
.Lstackbase:
.hword _ebss+CONFIG_IDLETHREAD_STACKSIZE-4
.Leronly:
.long _eronly /* Where .data defaults are stored in FLASH */
.hword _eronly /* Where .data defaults are stored in FLASH */
.Lsdata:
.long _sdata /* Where .data needs to reside in SDRAM */
.hword _sdata /* Where .data needs to reside in SDRAM */
.Ledata:
.long _edata
.hword _edata
.size __start, .-__start
/* This global variable is unsigned long g_heapbase and is
* exported from here only because of its coupling to LCO
* above.
*/
.data
.align 4
/************************************************************************************
* .rodata
************************************************************************************/
.section .rodata, "a"
/* Variables: _sbss is the start of the BSS region (see ld.script) _ebss is the end
* of the BSS regsion (see ld.script). The idle task stack starts at the end of BSS
* and is of size CONFIG_IDLETHREAD_STACKSIZE. The IDLE thread is the thread that
* the system boots on and, eventually, becomes the idle, do nothing task that runs
* only when there is nothing else to run. The heap continues from there until the
* end of memory. See g_heapbase below.
*/
.globl g_heapbase
.type g_heapbase, object
g_heapbase:
.long _ebss+CONFIG_IDLETHREAD_STACKSIZE
.hword _ebss+CONFIG_IDLETHREAD_STACKSIZE
.size g_heapbase, .-g_heapbase
.end
.end

24
arch/hc/src/mc9s12ne64/mc9s12ne64_vectors.S
View File

@ -196,6 +196,9 @@ handlers:
vcommon:
.size handlers, .-handlers
/************************************************************************************
* .bss
************************************************************************************/
/************************************************************************************
* Name: up_interruptstack/g_userstack
*
@ -212,26 +215,5 @@ up_interruptstack:
up_interruptstack_base:
.size up_interruptstack, .-up_interruptstack
#endif
/************************************************************************************
* .rodata
************************************************************************************/
.section .rodata, "a"
/* Variables: _sbss is the start of the BSS region (see ld.script) _ebss is the end
* of the BSS regsion (see ld.script). The idle task stack starts at the end of BSS
* and is of size CONFIG_IDLETHREAD_STACKSIZE. The IDLE thread is the thread that
* the system boots on and, eventually, becomes the idle, do nothing task that runs
* only when there is nothing else to run. The heap continues from there until the
* end of memory. See g_heapbase below.
*/
.globl g_heapbase
.type g_heapbase, object
g_heapbase:
.long _ebss+CONFIG_IDLETHREAD_STACKSIZE
.size g_heapbase, .-g_heapbase
.end