diff options
Diffstat (limited to 'cpu/sh4')
| -rw-r--r-- | cpu/sh4/start.S | 4 | ||||
| -rw-r--r-- | cpu/sh4/time.c | 4 | ||||
| -rw-r--r-- | cpu/sh4/watchdog.c | 53 |
3 files changed, 41 insertions, 20 deletions
diff --git a/cpu/sh4/start.S b/cpu/sh4/start.S index a68ebb8..711ae66 100644 --- a/cpu/sh4/start.S +++ b/cpu/sh4/start.S @@ -69,6 +69,6 @@ loop: ._reloc_dst_end: .long reloc_dst_end ._bss_start: .long bss_start ._bss_end: .long bss_end -._gd_init: .long (_start - CFG_GBL_DATA_SIZE) -._stack_init: .long (_start - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN - 16) +._gd_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE) +._stack_init: .long (_start - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN - 16) ._sh_generic_init: .long sh_generic_init diff --git a/cpu/sh4/time.c b/cpu/sh4/time.c index 5f8a3a0..77e0ae2 100644 --- a/cpu/sh4/time.c +++ b/cpu/sh4/time.c @@ -86,7 +86,7 @@ void reset_timer (void) void udelay (unsigned long usec) { unsigned int start = get_timer (0); - unsigned int end = start + (usec * ((CFG_HZ + 500000) / 1000000)); + unsigned int end = start + (usec * ((CONFIG_SYS_HZ + 500000) / 1000000)); while (get_timer (0) < end) continue; @@ -94,5 +94,5 @@ void udelay (unsigned long usec) unsigned long get_tbclk (void) { - return CFG_HZ; + return CONFIG_SYS_HZ; } diff --git a/cpu/sh4/watchdog.c b/cpu/sh4/watchdog.c index 346e217..f692429 100644 --- a/cpu/sh4/watchdog.c +++ b/cpu/sh4/watchdog.c @@ -17,34 +17,55 @@ #include <common.h> #include <asm/processor.h> +#include <asm/io.h> #define WDT_BASE WTCNT -static unsigned char cnt_read (void){ - return *((volatile unsigned char *)(WDT_BASE + 0x00)); +#define WDT_WD (1 << 6) +#define WDT_RST_P (0) +#define WDT_RST_M (1 << 5) +#define WDT_ENABLE (1 << 7) + +#if defined(CONFIG_WATCHDOG) +static unsigned char csr_read(void) +{ + return inb(WDT_BASE + 0x04); } -static unsigned char csr_read (void){ - return *((volatile unsigned char *)(WDT_BASE + 0x04)); +static void cnt_write(unsigned char value) +{ + outl((unsigned short)value | 0x5A00, WDT_BASE + 0x00); } -static void cnt_write (unsigned char value){ - while (csr_read() & (1 << 5)) { - /* delay */ - } - *((volatile unsigned short *)(WDT_BASE + 0x00)) - = ((unsigned short) value) | 0x5A00; +static void csr_write(unsigned char value) +{ + outl((unsigned short)value | 0xA500, WDT_BASE + 0x04); } -static void csr_write (unsigned char value){ - *((volatile unsigned short *)(WDT_BASE + 0x04)) - = ((unsigned short) value) | 0xA500; +void watchdog_reset(void) +{ + outl(0x55000000, WDT_BASE + 0x08); } +int watchdog_init(void) +{ + /* Set overflow time*/ + cnt_write(0); + /* Power on reset */ + csr_write(WDT_WD|WDT_RST_P|WDT_ENABLE); + + return 0; +} -int watchdog_init (void){ return 0; } +int watchdog_disable(void) +{ + csr_write(csr_read() & ~WDT_ENABLE); + return 0; +} +#endif -void reset_cpu (unsigned long ignored) +void reset_cpu(unsigned long ignored) { - while(1); + while (1) + ; } |