#include <common.h> #include <mpc8xx.h> #include <pcmcia.h> #undef CONFIG_PCMCIA #if defined(CONFIG_CMD_PCMCIA) #define CONFIG_PCMCIA #endif #if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD) #define CONFIG_PCMCIA #endif #ifdef CONFIG_PCMCIA #define PCMCIA_BOARD_MSG "R360MPI" int pcmcia_hardware_enable(int slot) { volatile immap_t *immap; volatile cpm8xx_t *cp; volatile pcmconf8xx_t *pcmp; volatile sysconf8xx_t *sysp; uint reg, mask; debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); udelay(10000); immap = (immap_t *)CFG_IMMR; sysp = (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf)); pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm)); /* * Configure SIUMCR to enable PCMCIA port B * (VFLS[0:1] are not used for debugging, we connect FRZ# instead) */ sysp->sc_siumcr &= ~SIUMCR_DBGC11; /* set DBGC to 00 */ /* clear interrupt state, and disable interrupts */ pcmp->pcmc_pscr = PCMCIA_MASK(_slot_); pcmp->pcmc_per &= ~PCMCIA_MASK(_slot_); /* * Disable interrupts, DMA, and PCMCIA buffers * (isolate the interface) and assert RESET signal */ debug ("Disable PCMCIA buffers and assert RESET\n"); reg = 0; reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(_slot_) = reg; udelay(500); /* * Configure Ports A, B & C pins for * 5 Volts Enable and 3 Volts enable */ immap->im_ioport.iop_pcpar &= ~(0x0400); immap->im_ioport.iop_pcso &= ~(0x0400);/* immap->im_ioport.iop_pcdir |= 0x0400;*/ immap->im_ioport.iop_papar &= ~(0x0200);/* immap->im_ioport.iop_padir |= 0x0200;*/ #if 0 immap->im_ioport.iop_pbpar &= ~(0xC000); immap->im_ioport.iop_pbdir &= ~(0xC000); #endif /* remove all power */ immap->im_ioport.iop_pcdat |= 0x0400; immap->im_ioport.iop_padat |= 0x0200; /* * Make sure there is a card in the slot, then configure the interface. */ udelay(10000); debug ("[%d] %s: PIPR(%p)=0x%x\n", __LINE__,__FUNCTION__, &(pcmp->pcmc_pipr),pcmp->pcmc_pipr); if (pcmp->pcmc_pipr & (0x18000000 >> (slot << 4))) { printf (" No Card found\n"); return (1); } /* * Power On. */ mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot); reg = pcmp->pcmc_pipr; debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n", reg, (reg&PCMCIA_VS1(slot))?"n":"ff", (reg&PCMCIA_VS2(slot))?"n":"ff"); if ((reg & mask) == mask) { immap->im_ioport.iop_pcdat &= ~(0x4000); puts (" 5.0V card found: "); } else { immap->im_ioport.iop_padat &= ~(0x0002); puts (" 3.3V card found: "); } immap->im_ioport.iop_pcdir |= 0x0400; immap->im_ioport.iop_padir |= 0x0200; #if 0 /* VCC switch error flag, PCMCIA slot INPACK_ pin */ cp->cp_pbdir &= ~(0x0020 | 0x0010); cp->cp_pbpar &= ~(0x0020 | 0x0010); udelay(500000); #endif debug ("Enable PCMCIA buffers and stop RESET\n"); reg = PCMCIA_PGCRX(_slot_); reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(_slot_) = reg; udelay(250000); /* some cards need >150 ms to come up :-( */ debug ("# hardware_enable done\n"); return (0); } #if defined(CONFIG_CMD_PCMCIA) int pcmcia_hardware_disable(int slot) { volatile immap_t *immap; volatile pcmconf8xx_t *pcmp; u_long reg; debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); immap = (immap_t *)CFG_IMMR; pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); /* remove all power */ immap->im_ioport.iop_pcdat |= 0x0400; immap->im_ioport.iop_padat |= 0x0200; /* Configure PCMCIA General Control Register */ debug ("Disable PCMCIA buffers and assert RESET\n"); reg = 0; reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(_slot_) = reg; udelay(10000); return (0); } #endif int pcmcia_voltage_set(int slot, int vcc, int vpp) { volatile immap_t *immap; volatile pcmconf8xx_t *pcmp; u_long reg; debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, Vcc=%d.%d, Vpp=%d.%d\n", 'A'+slot, vcc/10, vcc%10, vpp/10, vcc%10); immap = (immap_t *)CFG_IMMR; pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); /* * Disable PCMCIA buffers (isolate the interface) * and assert RESET signal */ debug ("Disable PCMCIA buffers and assert RESET\n"); reg = PCMCIA_PGCRX(_slot_); reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(_slot_) = reg; udelay(500); /* * Configure Ports A & C pins for * 5 Volts Enable and 3 Volts enable, * Turn off all power */ debug ("PCMCIA power OFF\n"); immap->im_ioport.iop_pcpar &= ~(0x0400); immap->im_ioport.iop_pcso &= ~(0x0400);/* immap->im_ioport.iop_pcdir |= 0x0400;*/ immap->im_ioport.iop_papar &= ~(0x0200);/* immap->im_ioport.iop_padir |= 0x0200;*/ immap->im_ioport.iop_pcdat |= 0x0400; immap->im_ioport.iop_padat |= 0x0200; reg = 0; switch(vcc) { case 0: break; case 33: reg |= 0x0200; break; case 50: reg |= 0x0400; break; default: goto done; } /* Checking supported voltages */ debug ("PIPR: 0x%x --> %s\n", pcmp->pcmc_pipr, (pcmp->pcmc_pipr & 0x00008000) ? "only 5 V" : "can do 3.3V"); if (reg & 0x0200) immap->im_ioport.iop_pcdat &= !reg; if (reg & 0x0400) immap->im_ioport.iop_padat &= !reg; immap->im_ioport.iop_pcdir |= 0x0200; immap->im_ioport.iop_padir |= 0x0400; if (reg) { debug ("PCMCIA powered at %sV\n", (reg&0x0400) ? "5.0" : "3.3"); } else { debug ("PCMCIA powered down\n"); } done: debug ("Enable PCMCIA buffers and stop RESET\n"); reg = PCMCIA_PGCRX(_slot_); reg &= ~__MY_PCMCIA_GCRX_CXRESET; /* active high */ reg &= ~__MY_PCMCIA_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(_slot_) = reg; udelay(500); debug ("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A'); return (0); } #endif /* CCONFIG_PCMCIA */