diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8xx/cpu.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xx/cpu.c | 46 |
1 files changed, 1 insertions, 45 deletions
diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c index 99676643b7..105be9ccc7 100644 --- a/arch/powerpc/cpu/mpc8xx/cpu.c +++ b/arch/powerpc/cpu/mpc8xx/cpu.c @@ -457,8 +457,6 @@ void upmconfig (uint upm, uint * table, uint size) /* ------------------------------------------------------------------------- */ -#ifndef CONFIG_LWMON - int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { ulong msr, addr; @@ -493,32 +491,6 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 1; } -#else /* CONFIG_LWMON */ - -/* - * On the LWMON board, the MCLR reset input of the PIC's on the board - * uses a 47K/1n RC combination which has a 47us time constant. The - * low signal on the HRESET pin of the CPU is only 512 clocks = 8 us - * and thus too short to reset the external hardware. So we use the - * watchdog to reset the board. - */ -int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - /* prevent triggering the watchdog */ - disable_interrupts (); - - /* make sure the watchdog is running */ - reset_8xx_watchdog ((immap_t *) CONFIG_SYS_IMMR); - - /* wait for watchdog reset */ - while (1) {}; - - /* NOTREACHED */ - return 1; -} - -#endif /* CONFIG_LWMON */ - /* ------------------------------------------------------------------------- */ /* @@ -580,31 +552,15 @@ void watchdog_reset (void) } #endif /* CONFIG_WATCHDOG */ -#if defined(CONFIG_WATCHDOG) || defined(CONFIG_LWMON) +#if defined(CONFIG_WATCHDOG) void reset_8xx_watchdog (volatile immap_t * immr) { -# if defined(CONFIG_LWMON) - /* - * The LWMON board uses a MAX6301 Watchdog - * with the trigger pin connected to port PA.7 - * - * (The old board version used a MAX706TESA Watchdog, which - * had to be handled exactly the same.) - */ -# define WATCHDOG_BIT 0x0100 - immr->im_ioport.iop_papar &= ~(WATCHDOG_BIT); /* GPIO */ - immr->im_ioport.iop_padir |= WATCHDOG_BIT; /* Output */ - immr->im_ioport.iop_paodr &= ~(WATCHDOG_BIT); /* active output */ - - immr->im_ioport.iop_padat ^= WATCHDOG_BIT; /* Toggle WDI */ -# else /* * All other boards use the MPC8xx Internal Watchdog */ immr->im_siu_conf.sc_swsr = 0x556c; /* write magic1 */ immr->im_siu_conf.sc_swsr = 0xaa39; /* write magic2 */ -# endif /* CONFIG_LWMON */ } #endif /* CONFIG_WATCHDOG */ |
