static int __init db1200_detect_board(void) { int bid; /* try the DB1200 first */ bcsr_init(DB1200_BCSR_PHYS_ADDR, DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS); if (BCSR_WHOAMI_DB1200 == BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) { unsigned short t = bcsr_read(BCSR_HEXLEDS); bcsr_write(BCSR_HEXLEDS, ~t); if (bcsr_read(BCSR_HEXLEDS) != t) { bcsr_write(BCSR_HEXLEDS, t); return 0; } } /* okay, try the PB1200 then */ bcsr_init(PB1200_BCSR_PHYS_ADDR, PB1200_BCSR_PHYS_ADDR + PB1200_BCSR_HEXLED_OFS); bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); if ((bid == BCSR_WHOAMI_PB1200_DDR1) || (bid == BCSR_WHOAMI_PB1200_DDR2)) { unsigned short t = bcsr_read(BCSR_HEXLEDS); bcsr_write(BCSR_HEXLEDS, ~t); if (bcsr_read(BCSR_HEXLEDS) != t) { bcsr_write(BCSR_HEXLEDS, t); return 0; } } return 1; /* it's neither */ }
static int db1x_pm_enter(suspend_state_t state) { unsigned short bcsrs[16]; int i, j, hasint; /* save CPLD regs */ hasint = bcsr_read(BCSR_WHOAMI); hasint = BCSR_WHOAMI_BOARD(hasint) >= BCSR_WHOAMI_DB1200; j = (hasint) ? BCSR_MASKSET : BCSR_SYSTEM; for (i = BCSR_STATUS; i <= j; i++) bcsrs[i] = bcsr_read(i); /* shut off hexleds */ bcsr_write(BCSR_HEXCLEAR, 3); /* enable GPIO based wakeup */ alchemy_gpio1_input_enable(); /* clear and setup wake cause and source */ alchemy_wrsys(0, AU1000_SYS_WAKEMSK); alchemy_wrsys(0, AU1000_SYS_WAKESRC); alchemy_wrsys(db1x_pm_wakemsk, AU1000_SYS_WAKEMSK); /* setup 1Hz-timer-based wakeup: wait for reg access */ while (alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_M20) asm volatile ("nop"); alchemy_wrsys(alchemy_rdsys(AU1000_SYS_TOYREAD) + db1x_pm_sleep_secs, AU1000_SYS_TOYMATCH2); /* wait for value to really hit the register */ while (alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_M20) asm volatile ("nop"); /* ...and now the sandman can come! */ au_sleep(); /* restore CPLD regs */ for (i = BCSR_STATUS; i <= BCSR_SYSTEM; i++) bcsr_write(i, bcsrs[i]); /* restore CPLD int registers */ if (hasint) { bcsr_write(BCSR_INTCLR, 0xffff); bcsr_write(BCSR_MASKCLR, 0xffff); bcsr_write(BCSR_INTSTAT, 0xffff); bcsr_write(BCSR_INTSET, bcsrs[BCSR_INTSET]); bcsr_write(BCSR_MASKSET, bcsrs[BCSR_MASKSET]); } /* light up hexleds */ bcsr_write(BCSR_HEXCLEAR, 0); return 0; }
void __init board_setup(void) { u32 pin_func; bcsr_init(PB1550_BCSR_PHYS_ADDR, PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS); alchemy_gpio2_enable(); /* * Enable PSC1 SYNC for AC'97. Normaly done in audio driver, * but it is board specific code, so put it here. */ pin_func = au_readl(SYS_PINFUNC); au_sync(); pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1; au_writel(pin_func, SYS_PINFUNC); bcsr_write(BCSR_PCMCIA, 0); /* turn off PCMCIA power */ printk(KERN_INFO "AMD Alchemy Pb1550 Board\n"); }
static void db1x_reset(char *c) { bcsr_write(BCSR_RESETS, 0); bcsr_write(BCSR_SYSTEM, 0); }
static void db1x_power_off(void) { bcsr_write(BCSR_RESETS, 0); bcsr_write(BCSR_SYSTEM, BCSR_SYSTEM_PWROFF | BCSR_SYSTEM_RESET); }
void board_reset(void) { bcsr_write(BCSR_RESETS, 0); bcsr_write(BCSR_SYSTEM, 0); }