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changing power up sequence. 

disable all power before probing plum2 devices.
This commit is contained in:
uch 1999-12-07 17:21:45 +00:00
parent af18379afb
commit e96dc9806b
2 changed files with 45 additions and 22 deletions
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60
sys/arch/hpcmips/dev/plumpower.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: plumpower.c,v 1.1 1999/11/21 06:50:26 uch Exp $ */
/* $NetBSD: plumpower.c,v 1.2 1999/12/07 17:21:45 uch Exp $ */
/*
* Copyright (c) 1999, by UCHIYAMA Yasushi
@ -86,17 +86,19 @@ plumpower_attach(parent, self, aux)
}
plum_conf_register_power(sc->sc_pc, (void*)sc);
#ifdef FULLPOWER
plum_conf_write(sc->sc_regt, sc->sc_regh, PLUM_POWER_PWRCONT_REG, ~0);
delay(1000*1000);
plum_conf_write(sc->sc_regt, sc->sc_regh, PLUM_POWER_CLKCONT_REG, ~0);
delay(1000*1000);
#endif
plumpower_dump(sc);
/* Enable MCS interface */
/* disable all power/clock */
plum_conf_write(sc->sc_regt, sc->sc_regh,
PLUM_POWER_PWRCONT_REG, 0);
plum_conf_write(sc->sc_regt, sc->sc_regh,
PLUM_POWER_CLKCONT_REG, 0);
delay(300 * 1000);
/* enable MCS interface from TX3922 */
plum_conf_write(sc->sc_regt, sc->sc_regh, PLUM_POWER_INPENA_REG,
PLUM_POWER_INPENA);
plumpower_dump(sc);
}
void
@ -132,16 +134,27 @@ plum_power_establish(pc, src)
default:
panic("plum_power_establish: unknown power source");
case PLUM_PWR_LCD:
pwrreg |= (PLUM_POWER_PWRCONT_LCDOE |
PLUM_POWER_PWRCONT_LCDPWR |
PLUM_POWER_PWRCONT_LCDDSP);
pwrreg |= PLUM_POWER_PWRCONT_LCDPWR;
plum_conf_write(regt, regh, PLUM_POWER_PWRCONT_REG, pwrreg);
pwrreg |= PLUM_POWER_PWRCONT_LCDDSP;
plum_conf_write(regt, regh, PLUM_POWER_PWRCONT_REG, pwrreg);
pwrreg |= PLUM_POWER_PWRCONT_LCDOE;
plum_conf_write(regt, regh, PLUM_POWER_PWRCONT_REG, pwrreg);
break;
case PLUM_PWR_BKL:
pwrreg |= PLUM_POWER_PWRCONT_BKLIGHT;
break;
case PLUM_PWR_IO5:
pwrreg |= (PLUM_POWER_PWRCONT_IO5PWR |
PLUM_POWER_PWRCONT_IO5OE);
/* reset I/O bus (High/Low) */
plum_power_ioreset(pc);
/* supply power */
pwrreg |= PLUM_POWER_PWRCONT_IO5PWR;
plum_conf_write(regt, regh, PLUM_POWER_PWRCONT_REG, pwrreg);
delay(300*1000);
/* output enable & supply clock */
pwrreg |= PLUM_POWER_PWRCONT_IO5OE;
clkreg |= PLUM_POWER_CLKCONT_IO5CLK;
break;
case PLUM_PWR_EXTPW0:
@ -154,9 +167,12 @@ plum_power_establish(pc, src)
pwrreg |= PLUM_POWER_PWRCONT_EXTPW2;
break;
case PLUM_PWR_USB:
/* output enable */
pwrreg |= PLUM_POWER_PWRCONT_USBEN;
clkreg |= (PLUM_POWER_CLKCONT_USBCLK1 |
PLUM_POWER_CLKCONT_USBCLK2);
/* supply clock to the USB host controller */
clkreg |= PLUM_POWER_CLKCONT_USBCLK1;
/* clock supply is adaptively controlled by hardware */
clkreg &= ~PLUM_POWER_CLKCONT_USBCLK2;
break;
case PLUM_PWR_SM:
clkreg |= PLUM_POWER_CLKCONT_SMCLK;
@ -170,7 +186,12 @@ plum_power_establish(pc, src)
}
plum_conf_write(regt, regh, PLUM_POWER_PWRCONT_REG, pwrreg);
delay(300*1000);
plum_conf_write(regt, regh, PLUM_POWER_CLKCONT_REG, clkreg);
delay(300*1000);
plumpower_dump(sc);
return (void*)src;
}
@ -194,8 +215,8 @@ plum_power_disestablish(pc, ph)
panic("plum_power_disestablish: unknown power source");
case PLUM_PWR_LCD:
pwrreg &= ~(PLUM_POWER_PWRCONT_LCDOE |
PLUM_POWER_PWRCONT_LCDPWR |
PLUM_POWER_PWRCONT_LCDDSP);
PLUM_POWER_PWRCONT_LCDPWR |
PLUM_POWER_PWRCONT_LCDDSP);
break;
case PLUM_PWR_BKL:
pwrreg &= ~PLUM_POWER_PWRCONT_BKLIGHT;
@ -233,6 +254,7 @@ plum_power_disestablish(pc, ph)
plum_conf_write(regt, regh, PLUM_POWER_PWRCONT_REG, pwrreg);
plum_conf_write(regt, regh, PLUM_POWER_CLKCONT_REG, clkreg);
plumpower_dump(sc);
}
#define ISPOWERSUPPLY(r, m) __is_set_print(r, PLUM_POWER_PWRCONT_##m, #m)
@ -273,10 +295,6 @@ plumpower_dump(sc)
printf("\n IO5 reset:%s %s",
reg & PLUM_POWER_RESETC_IO5CL0 ? "CLRL" : "",
reg & PLUM_POWER_RESETC_IO5CL1 ? "CLRH" : "");
reg = plum_conf_read(regt, regh, PLUM_POWER_TESTMD_REG);
printf("\n Test mode set:");
bitdisp(reg);
printf("\n");
}

7
sys/arch/hpcmips/dev/plumpowerreg.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: plumpowerreg.h,v 1.1 1999/11/21 06:50:26 uch Exp $ */
/* $NetBSD: plumpowerreg.h,v 1.2 1999/12/07 17:21:45 uch Exp $ */
/*
* Copyright (c) 1999, by UCHIYAMA Yasushi
@ -38,8 +38,11 @@
#define PLUM_POWER_PWRCONT_USBEN 0x00000400
#define PLUM_POWER_PWRCONT_IO5OE 0x00000200
#define PLUM_POWER_PWRCONT_LCDOE 0x00000100
/* Enable signal of oscillator for the VRAM control */
#define PLUM_POWER_PWRCONT_EXTPW2 0x00000040
/* Enable signal of the oscillator for LCD module */
#define PLUM_POWER_PWRCONT_EXTPW1 0x00000020
/* FET Switch that gates power line for RAMDAC */
#define PLUM_POWER_PWRCONT_EXTPW0 0x00000010
#define PLUM_POWER_PWRCONT_IO5PWR 0x00000008
#define PLUM_POWER_PWRCONT_BKLIGHT 0x00000004
@ -72,7 +75,9 @@
/* reset control register (I/O bus)*/
#define PLUM_POWER_RESETC_REG 0x010
/* Active High control */
#define PLUM_POWER_RESETC_IO5CL1 0x00000002
/* Active Low control */
#define PLUM_POWER_RESETC_IO5CL0 0x00000001
#define PLUM_POWER_TESTMD_REG 0x100