From b96f07e47712606b59b6165d3923406aef0f9db3 Mon Sep 17 00:00:00 2001 From: kontais Date: Wed, 15 Jun 2016 08:09:56 -0700 Subject: [PATCH 1/2] flush cache after exception code install --- bsp/ls1bdev/applications/startup.c | 3 +++ bsp/ls1cdev/applications/startup.c | 6 ++++++ libcpu/mips/loongson_1b/cache.c | 4 +++- libcpu/mips/loongson_1c/cache.c | 4 +++- 4 files changed, 15 insertions(+), 2 deletions(-) diff --git a/bsp/ls1bdev/applications/startup.c b/bsp/ls1bdev/applications/startup.c index bfd821402..f5c8eddc0 100644 --- a/bsp/ls1bdev/applications/startup.c +++ b/bsp/ls1bdev/applications/startup.c @@ -32,6 +32,9 @@ extern int rt_application_init(void); extern void tlb_refill_exception(void); extern void general_exception(void); extern void irq_exception(void); +extern void rt_hw_cache_init(void); +extern void invalidate_writeback_dcache_all(void); +extern void invalidate_icache_all(void); /** * This function will startup RT-Thread RTOS. diff --git a/bsp/ls1cdev/applications/startup.c b/bsp/ls1cdev/applications/startup.c index 5c78776f8..ed2854e97 100644 --- a/bsp/ls1cdev/applications/startup.c +++ b/bsp/ls1cdev/applications/startup.c @@ -33,6 +33,9 @@ extern int rt_application_init(void); extern void tlb_refill_exception(void); extern void general_exception(void); extern void irq_exception(void); +extern void rt_hw_cache_init(void); +extern void invalidate_writeback_dcache_all(void); +extern void invalidate_icache_all(void); /** * This function will startup RT-Thread RTOS. @@ -52,6 +55,9 @@ void rtthread_startup(void) rt_memcpy((void *)(A_K0BASE + 0x180), general_exception, 0x20); rt_memcpy((void *)(A_K0BASE + 0x200), irq_exception, 0x20); + invalidate_writeback_dcache_all(); + invalidate_icache_all(); + /* init board */ rt_hw_board_init(); diff --git a/libcpu/mips/loongson_1b/cache.c b/libcpu/mips/loongson_1b/cache.c index 9b3dfde44..842f392cb 100644 --- a/libcpu/mips/loongson_1b/cache.c +++ b/libcpu/mips/loongson_1b/cache.c @@ -13,6 +13,7 @@ * 2011-08-08 lgnq modified for LS1B */ +#include #include "../common/mipsregs.h" #define K0BASE 0x80000000 @@ -23,6 +24,7 @@ extern void Invalidate_Icache_Ls1b(unsigned int); extern void Invalidate_Dcache_ClearTag_Ls1b(unsigned int); extern void Invalidate_Dcache_Fill_Ls1b(unsigned int); extern void Writeback_Invalidate_Dcache(unsigned int); +extern void enable_cpu_cache(void); typedef struct cacheinfo_t { @@ -151,7 +153,7 @@ void invalidate_dcache_all(void) unsigned int end = (start + pcacheinfo->dcache_size); while (start icacheline_size; } } diff --git a/libcpu/mips/loongson_1c/cache.c b/libcpu/mips/loongson_1c/cache.c index 79ab5308d..bf97db9b4 100644 --- a/libcpu/mips/loongson_1c/cache.c +++ b/libcpu/mips/loongson_1c/cache.c @@ -14,6 +14,7 @@ * 2015-07-08 chinesebear modified for loongson 1c */ +#include #include "../common/mipsregs.h" #define K0BASE 0x80000000 @@ -24,6 +25,7 @@ extern void Invalidate_Icache_Ls1c(unsigned int); extern void Invalidate_Dcache_ClearTag_Ls1c(unsigned int); extern void Invalidate_Dcache_Fill_Ls1c(unsigned int); extern void Writeback_Invalidate_Dcache(unsigned int); +extern void enable_cpu_cache(void); typedef struct cacheinfo_t { @@ -152,7 +154,7 @@ void invalidate_dcache_all(void) unsigned int end = (start + pcacheinfo->dcache_size); while (start icacheline_size; } } From c72433560d66ab58c92eaf86b75358c29fb9bea1 Mon Sep 17 00:00:00 2001 From: kontais Date: Wed, 15 Jun 2016 08:42:38 -0700 Subject: [PATCH 2/2] flush cache after exception code install on ls1b --- bsp/ls1bdev/applications/startup.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/bsp/ls1bdev/applications/startup.c b/bsp/ls1bdev/applications/startup.c index f5c8eddc0..deedf962f 100644 --- a/bsp/ls1bdev/applications/startup.c +++ b/bsp/ls1bdev/applications/startup.c @@ -54,6 +54,9 @@ void rtthread_startup(void) rt_memcpy((void *)(A_K0BASE + 0x180), general_exception, 0x20); rt_memcpy((void *)(A_K0BASE + 0x200), irq_exception, 0x20); + invalidate_writeback_dcache_all(); + invalidate_icache_all(); + /* init board */ rt_hw_board_init();