add init loongson soc3210 porting.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1012 bbd45198-f89e-11dd-88c7-29a3b14d5316

2 files changed, 15 insertions, 16 deletions

diff --git a/libcpu/mips/common/exception.h b/libcpu/mips/common/exception.h
index 07ffcd7a29..cd776a77cb 100644
--- a/libcpu/mips/common/exception.h
+++ b/libcpu/mips/common/exception.h
@@ -140,8 +140,6 @@
 

 #define GDB_FR_SIZE			((((GDB_FR_CP0_PRID) + LONGSIZE) + (PTRSIZE-1)) & ~(PTRSIZE-1))

 

-

-

 /*

  * This is the same as above, but for the high-level

  * part of the INT stub.

@@ -161,7 +159,7 @@ typedef struct pt_regs_s
 

 typedef void (* exception_func_t)(pt_regs_t *regs);

 

-extern exception_func_t sys_exception_handlers[33];

+extern exception_func_t sys_exception_handlers[];

 exception_func_t rt_set_except_vector(int n, exception_func_t func);

 void install_default_execpt_handle(void);

 

diff --git a/libcpu/mips/common/mips.inc b/libcpu/mips/common/mips.inc
index 59388fd7f1..c1e3e2d418 100644
--- a/libcpu/mips/common/mips.inc
+++ b/libcpu/mips/common/mips.inc
@@ -14,15 +14,15 @@
 #ifndef __MIPS_INC__

 #define __MIPS_INC__

 

-#define zero    $0

-#define at      $1

-#define v0      $2

+#define zero    $0		/* wired zero */

+// #define at      $1

+#define v0      $2		/* return value */

 #define v1      $3

-#define a0      $4

+#define a0      $4		/* argument registers */

 #define a1      $5

 #define a2      $6

 #define a3      $7

-#define t0      $8

+#define t0      $8		/* caller saved */

 #define t1      $9

 #define t2      $10

 #define t3      $11

@@ -30,7 +30,7 @@
 #define t5      $13

 #define t6      $14

 #define t7      $15

-#define s0      $16

+#define s0      $16		/* callee saved */

 #define s1      $17

 #define s2      $18

 #define s3      $19

@@ -38,14 +38,15 @@
 #define s5      $21

 #define s6      $22

 #define s7      $23

-#define t8      $24

+#define t8      $24		/* caller saved */

 #define t9      $25

-#define k0      $26

+#define jp      $25     /* PIC jump register */

+#define k0      $26     /* kernel scratch */

 #define k1      $27

-#define gp      $28

-#define sp      $29

-#define fp      $30

-#define ra      $31

-

+#define gp      $28     /* global pointer */

+#define sp      $29     /* stack pointer */

+#define fp      $30     /* frame pointer */

+#define s8		$30		/* same like fp! */

+#define ra      $31     /* return address */

 

 #endif /* end of __MIPS_INC__   */