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2009-05-25 Allan Hessenflow <allanh@kallisti.com>

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* start/start.S: Correct call to boot_card to meet bfin abi by
	clearing l0 - l3 and allocating some stack space.
This commit is contained in:
Joel Sherrill
2009-05-28 20:55:46 +00:00
parent 7c8d65e835
commit a319ab0471
2 changed files with 18 additions and 4 deletions
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5
c/src/lib/libbsp/bfin/bf537Stamp/ChangeLog
View File

@@ -1,3 +1,8 @@
2009-05-25 Allan Hessenflow <allanh@kallisti.com>
* start/start.S: Correct call to boot_card to meet bfin abi by
clearing l0 - l3 and allocating some stack space.
2009-05-25 Allan Hessenflow <allanh@kallisti.com> 2009-05-25 Allan Hessenflow <allanh@kallisti.com>
PR 1418/bsps PR 1418/bsps

17
c/src/lib/libbsp/bfin/bf537Stamp/start/start.S
View File

@@ -7,10 +7,6 @@
#include <libcpu/cecRegs.h> #include <libcpu/cecRegs.h>
#include <libcpu/coreTimerRegs.h> #include <libcpu/coreTimerRegs.h>
#warning Call to boot_card has changed and needs checking.
#warning The call is "void boot_card(const char* cmdline);"
#warning Please check and remove these warnings.
#ifndef LO #ifndef LO
#define LO(con32) ((con32) & 0xFFFF) #define LO(con32) ((con32) & 0xFFFF)
#endif #endif
@@ -51,6 +47,12 @@ __start:
p0.l = LO(SIC_IMASK); p0.l = LO(SIC_IMASK);
[p0] = r0; [p0] = r0;
/* clear any pending interrupts */
p0.h = HI(CEC_ILAT);
p0.l = LO(CEC_ILAT);
r0 = 0xffff (z);
[p0] = r0;
/* this is so we can stay in supervisor mode and still be able to /* this is so we can stay in supervisor mode and still be able to
accept interrupts later. */ accept interrupts later. */
p0.h = start; p0.h = start;
@@ -96,9 +98,16 @@ start:
loop1: b[p0] = r0; loop1: b[p0] = r0;
loop2: p0 +=1; loop2: p0 +=1;
l0 = 0;
l1 = 0;
l2 = 0;
l3 = 0;
sp += -12;
/* r0 == const char *cmdline (currently null) */
p0.h = _boot_card; p0.h = _boot_card;
p0.l = _boot_card; p0.l = _boot_card;
call (p0); call (p0);
sp += 12;
p0.h = _exit; p0.h = _exit;
p0.l = _exit; p0.l = _exit;