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Diffstat (limited to 'libcpu/mips/loongson_1c/cpuport.c')
-rw-r--r--libcpu/mips/loongson_1c/cpuport.c144
1 files changed, 72 insertions, 72 deletions
diff --git a/libcpu/mips/loongson_1c/cpuport.c b/libcpu/mips/loongson_1c/cpuport.c
index 03fdc2a514..147f4882bf 100644
--- a/libcpu/mips/loongson_1c/cpuport.c
+++ b/libcpu/mips/loongson_1c/cpuport.c
@@ -31,13 +31,13 @@ register rt_uint32_t $GP __asm__ ("$28");
*/
void rt_hw_cpu_reset(void)
{
- /* open the watch-dog */
- WDT_EN = 0x01; /* watch dog enable */
- WDT_TIMER = 0x01; /* watch dog will be timeout after 1 tick */
- WDT_SET = 0x01; /* watch dog start */
+ /* open the watch-dog */
+ WDT_EN = 0x01; /* watch dog enable */
+ WDT_TIMER = 0x01; /* watch dog will be timeout after 1 tick */
+ WDT_SET = 0x01; /* watch dog start */
- rt_kprintf("reboot system...\n");
- while (1);
+ rt_kprintf("reboot system...\n");
+ while (1);
}
/**
@@ -46,9 +46,9 @@ void rt_hw_cpu_reset(void)
*/
void rt_hw_cpu_shutdown(void)
{
- rt_kprintf("shutdown...\n");
+ rt_kprintf("shutdown...\n");
- while (1);
+ while (1);
}
extern rt_uint32_t cp0_get_cause(void);
@@ -68,73 +68,73 @@ extern rt_uint32_t cp0_get_lo(void);
*/
rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_addr, void *texit)
{
- rt_uint32_t *stk;
+ rt_uint32_t *stk;
static rt_uint32_t g_sr = 0;
- static rt_uint32_t g_gp = 0;
+ static rt_uint32_t g_gp = 0;
if (g_sr == 0)
{
- g_sr = cp0_get_status();
- g_sr &= 0xfffffffe;
- g_sr |= 0x8401;
+ g_sr = cp0_get_status();
+ g_sr &= 0xfffffffe;
+ g_sr |= 0x8401;
- g_gp = $GP;
+ g_gp = $GP;
}
/** Start at stack top */
stk = (rt_uint32_t *)stack_addr;
- *(stk) = (rt_uint32_t) tentry; /* pc: Entry Point */
- *(--stk) = (rt_uint32_t) 0xeeee; /* c0_cause */
- *(--stk) = (rt_uint32_t) 0xffff; /* c0_badvaddr */
- *(--stk) = (rt_uint32_t) cp0_get_lo(); /* lo */
- *(--stk) = (rt_uint32_t) cp0_get_hi(); /* hi */
- *(--stk) = (rt_uint32_t) g_sr; /* C0_SR: HW2 = En, IE = En */
- *(--stk) = (rt_uint32_t) texit; /* ra */
- *(--stk) = (rt_uint32_t) 0x0000001e; /* s8 */
- *(--stk) = (rt_uint32_t) stack_addr; /* sp */
- *(--stk) = (rt_uint32_t) g_gp; /* gp */
- *(--stk) = (rt_uint32_t) 0x0000001b; /* k1 */
- *(--stk) = (rt_uint32_t) 0x0000001a; /* k0 */
- *(--stk) = (rt_uint32_t) 0x00000019; /* t9 */
- *(--stk) = (rt_uint32_t) 0x00000018; /* t8 */
- *(--stk) = (rt_uint32_t) 0x00000017; /* s7 */
- *(--stk) = (rt_uint32_t) 0x00000016; /* s6 */
- *(--stk) = (rt_uint32_t) 0x00000015; /* s5 */
- *(--stk) = (rt_uint32_t) 0x00000014; /* s4 */
- *(--stk) = (rt_uint32_t) 0x00000013; /* s3 */
- *(--stk) = (rt_uint32_t) 0x00000012; /* s2 */
- *(--stk) = (rt_uint32_t) 0x00000011; /* s1 */
- *(--stk) = (rt_uint32_t) 0x00000010; /* s0 */
- *(--stk) = (rt_uint32_t) 0x0000000f; /* t7 */
- *(--stk) = (rt_uint32_t) 0x0000000e; /* t6 */
- *(--stk) = (rt_uint32_t) 0x0000000d; /* t5 */
- *(--stk) = (rt_uint32_t) 0x0000000c; /* t4 */
- *(--stk) = (rt_uint32_t) 0x0000000b; /* t3 */
- *(--stk) = (rt_uint32_t) 0x0000000a; /* t2 */
- *(--stk) = (rt_uint32_t) 0x00000009; /* t1 */
- *(--stk) = (rt_uint32_t) 0x00000008; /* t0 */
- *(--stk) = (rt_uint32_t) 0x00000007; /* a3 */
- *(--stk) = (rt_uint32_t) 0x00000006; /* a2 */
- *(--stk) = (rt_uint32_t) 0x00000005; /* a1 */
- *(--stk) = (rt_uint32_t) parameter; /* a0 */
- *(--stk) = (rt_uint32_t) 0x00000003; /* v1 */
- *(--stk) = (rt_uint32_t) 0x00000002; /* v0 */
- *(--stk) = (rt_uint32_t) 0x00000001; /* at */
- *(--stk) = (rt_uint32_t) 0x00000000; /* zero */
+ *(stk) = (rt_uint32_t) tentry; /* pc: Entry Point */
+ *(--stk) = (rt_uint32_t) 0xeeee; /* c0_cause */
+ *(--stk) = (rt_uint32_t) 0xffff; /* c0_badvaddr */
+ *(--stk) = (rt_uint32_t) cp0_get_lo(); /* lo */
+ *(--stk) = (rt_uint32_t) cp0_get_hi(); /* hi */
+ *(--stk) = (rt_uint32_t) g_sr; /* C0_SR: HW2 = En, IE = En */
+ *(--stk) = (rt_uint32_t) texit; /* ra */
+ *(--stk) = (rt_uint32_t) 0x0000001e; /* s8 */
+ *(--stk) = (rt_uint32_t) stack_addr; /* sp */
+ *(--stk) = (rt_uint32_t) g_gp; /* gp */
+ *(--stk) = (rt_uint32_t) 0x0000001b; /* k1 */
+ *(--stk) = (rt_uint32_t) 0x0000001a; /* k0 */
+ *(--stk) = (rt_uint32_t) 0x00000019; /* t9 */
+ *(--stk) = (rt_uint32_t) 0x00000018; /* t8 */
+ *(--stk) = (rt_uint32_t) 0x00000017; /* s7 */
+ *(--stk) = (rt_uint32_t) 0x00000016; /* s6 */
+ *(--stk) = (rt_uint32_t) 0x00000015; /* s5 */
+ *(--stk) = (rt_uint32_t) 0x00000014; /* s4 */
+ *(--stk) = (rt_uint32_t) 0x00000013; /* s3 */
+ *(--stk) = (rt_uint32_t) 0x00000012; /* s2 */
+ *(--stk) = (rt_uint32_t) 0x00000011; /* s1 */
+ *(--stk) = (rt_uint32_t) 0x00000010; /* s0 */
+ *(--stk) = (rt_uint32_t) 0x0000000f; /* t7 */
+ *(--stk) = (rt_uint32_t) 0x0000000e; /* t6 */
+ *(--stk) = (rt_uint32_t) 0x0000000d; /* t5 */
+ *(--stk) = (rt_uint32_t) 0x0000000c; /* t4 */
+ *(--stk) = (rt_uint32_t) 0x0000000b; /* t3 */
+ *(--stk) = (rt_uint32_t) 0x0000000a; /* t2 */
+ *(--stk) = (rt_uint32_t) 0x00000009; /* t1 */
+ *(--stk) = (rt_uint32_t) 0x00000008; /* t0 */
+ *(--stk) = (rt_uint32_t) 0x00000007; /* a3 */
+ *(--stk) = (rt_uint32_t) 0x00000006; /* a2 */
+ *(--stk) = (rt_uint32_t) 0x00000005; /* a1 */
+ *(--stk) = (rt_uint32_t) parameter; /* a0 */
+ *(--stk) = (rt_uint32_t) 0x00000003; /* v1 */
+ *(--stk) = (rt_uint32_t) 0x00000002; /* v0 */
+ *(--stk) = (rt_uint32_t) 0x00000001; /* at */
+ *(--stk) = (rt_uint32_t) 0x00000000; /* zero */
- /* return task's current stack address */
- return (rt_uint8_t *)stk;
+ /* return task's current stack address */
+ return (rt_uint8_t *)stk;
}
#define cache_op(op,addr) \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noreorder \n" \
- " .set mips3\n\t \n" \
- " cache %0, %1 \n" \
- " .set pop \n" \
- : \
- : "i" (op), "R" (*(unsigned char *)(addr)))
+ __asm__ __volatile__( \
+ " .set push \n" \
+ " .set noreorder \n" \
+ " .set mips3\n\t \n" \
+ " cache %0, %1 \n" \
+ " .set pop \n" \
+ : \
+ : "i" (op), "R" (*(unsigned char *)(addr)))
#if defined(CONFIG_CPU_LOONGSON2)
#define Hit_Invalidate_I 0x00
@@ -148,17 +148,17 @@ rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter, rt_uint8_t *stack_ad
void flush_cache(unsigned long start_addr, unsigned long size)
{
- unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
- unsigned long addr = start_addr & ~(lsize - 1);
- unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
+ unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+ unsigned long addr = start_addr & ~(lsize - 1);
+ unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
- while (1) {
- cache_op(Hit_Writeback_Inv_D, addr);
- cache_op(Hit_Invalidate_I, addr);
- if (addr == aend)
- break;
- addr += lsize;
- }
+ while (1) {
+ cache_op(Hit_Writeback_Inv_D, addr);
+ cache_op(Hit_Invalidate_I, addr);
+ if (addr == aend)
+ break;
+ addr += lsize;
+ }
}
generated by cgit v1.3.1 (git 2.54.0) at 2026-10-24 03:58:49 +0000