diff options
Diffstat (limited to 'libcpu/arm/sep4020/cpu.c')
| -rw-r--r-- | libcpu/arm/sep4020/cpu.c | 116 |
1 files changed, 58 insertions, 58 deletions
diff --git a/libcpu/arm/sep4020/cpu.c b/libcpu/arm/sep4020/cpu.c index ee4eab626b..2d443309b0 100644 --- a/libcpu/arm/sep4020/cpu.c +++ b/libcpu/arm/sep4020/cpu.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006-2018, RT-Thread Development Team + * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * @@ -21,76 +21,76 @@ extern rt_uint32_t rt_hw_interrupt_disable(void); */ /*@{*/ -#define ICACHE_MASK (rt_uint32_t)(1 << 12) -#define DCACHE_MASK (rt_uint32_t)(1 << 2) +#define ICACHE_MASK (rt_uint32_t)(1 << 12) +#define DCACHE_MASK (rt_uint32_t)(1 << 2) #ifdef __GNUC__ rt_inline rt_uint32_t cp15_rd(void) { - rt_uint32_t i; + rt_uint32_t i; - asm ("mrc p15, 0, %0, c1, c0, 0":"=r" (i)); - return i; + asm ("mrc p15, 0, %0, c1, c0, 0":"=r" (i)); + return i; } rt_inline void cache_enable(rt_uint32_t bit) { - __asm__ __volatile__( \ - "mrc p15,0,r0,c1,c0,0\n\t" \ - "orr r0,r0,%0\n\t" \ - "mcr p15,0,r0,c1,c0,0" \ - : \ - :"r" (bit) \ - :"memory"); + __asm__ __volatile__( \ + "mrc p15,0,r0,c1,c0,0\n\t" \ + "orr r0,r0,%0\n\t" \ + "mcr p15,0,r0,c1,c0,0" \ + : \ + :"r" (bit) \ + :"memory"); } rt_inline void cache_disable(rt_uint32_t bit) { - __asm__ __volatile__( \ - "mrc p15,0,r0,c1,c0,0\n\t" \ - "bic r0,r0,%0\n\t" \ - "mcr p15,0,r0,c1,c0,0" \ - : \ - :"r" (bit) \ - :"memory"); + __asm__ __volatile__( \ + "mrc p15,0,r0,c1,c0,0\n\t" \ + "bic r0,r0,%0\n\t" \ + "mcr p15,0,r0,c1,c0,0" \ + : \ + :"r" (bit) \ + :"memory"); } #endif #ifdef __CC_ARM rt_inline rt_uint32_t cp15_rd(void) { - rt_uint32_t i; + rt_uint32_t i; - __asm - { - mrc p15, 0, i, c1, c0, 0 - } + __asm + { + mrc p15, 0, i, c1, c0, 0 + } - return i; + return i; } rt_inline void cache_enable(rt_uint32_t bit) { - rt_uint32_t value; + rt_uint32_t value; - __asm - { - mrc p15, 0, value, c1, c0, 0 - orr value, value, bit - mcr p15, 0, value, c1, c0, 0 - } + __asm + { + mrc p15, 0, value, c1, c0, 0 + orr value, value, bit + mcr p15, 0, value, c1, c0, 0 + } } rt_inline void cache_disable(rt_uint32_t bit) { - rt_uint32_t value; + rt_uint32_t value; - __asm - { - mrc p15, 0, value, c1, c0, 0 - bic value, value, bit - mcr p15, 0, value, c1, c0, 0 - } + __asm + { + mrc p15, 0, value, c1, c0, 0 + bic value, value, bit + mcr p15, 0, value, c1, c0, 0 + } } #endif @@ -100,7 +100,7 @@ rt_inline void cache_disable(rt_uint32_t bit) */ void rt_hw_cpu_icache_enable() { - cache_enable(ICACHE_MASK); + cache_enable(ICACHE_MASK); } /** @@ -109,7 +109,7 @@ void rt_hw_cpu_icache_enable() */ void rt_hw_cpu_icache_disable() { - cache_disable(ICACHE_MASK); + cache_disable(ICACHE_MASK); } /** @@ -118,7 +118,7 @@ void rt_hw_cpu_icache_disable() */ rt_base_t rt_hw_cpu_icache_status() { - return (cp15_rd() & ICACHE_MASK); + return (cp15_rd() & ICACHE_MASK); } /** @@ -127,7 +127,7 @@ rt_base_t rt_hw_cpu_icache_status() */ void rt_hw_cpu_dcache_enable() { - cache_enable(DCACHE_MASK); + cache_enable(DCACHE_MASK); } /** @@ -136,7 +136,7 @@ void rt_hw_cpu_dcache_enable() */ void rt_hw_cpu_dcache_disable() { - cache_disable(DCACHE_MASK); + cache_disable(DCACHE_MASK); } /** @@ -145,7 +145,7 @@ void rt_hw_cpu_dcache_disable() */ rt_base_t rt_hw_cpu_dcache_status() { - return (cp15_rd() & DCACHE_MASK); + return (cp15_rd() & DCACHE_MASK); } /** @@ -155,18 +155,18 @@ rt_base_t rt_hw_cpu_dcache_status() void rt_hw_cpu_reset() { - /* enable watchdog */ - *(RP)(RTC_CTR) = 0x02; + /* enable watchdog */ + *(RP)(RTC_CTR) = 0x02; - /*Enable watchdog reset*/ - *(RP)(RTC_INT_EN) = 0x20; + /*Enable watchdog reset*/ + *(RP)(RTC_INT_EN) = 0x20; - /* Initialize watchdog timer count register */ - *(RP)(RTC_WD_CNT) = 0x0001; + /* Initialize watchdog timer count register */ + *(RP)(RTC_WD_CNT) = 0x0001; - while(1); /* loop forever and wait for reset to happen */ + while(1); /* loop forever and wait for reset to happen */ - /* NEVER REACHED */ + /* NEVER REACHED */ } /** @@ -175,12 +175,12 @@ void rt_hw_cpu_reset() */ void rt_hw_cpu_shutdown() { - rt_uint32_t UNUSED level; - rt_kprintf("shutdown...\n"); + rt_uint32_t UNUSED level; + rt_kprintf("shutdown...\n"); - level = rt_hw_interrupt_disable(); + level = rt_hw_interrupt_disable(); - RT_ASSERT(RT_NULL); + RT_ASSERT(RT_NULL); } /*@}*/ |