#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 "UC100" /* * Remark: don't turn off OE "__MY_PCMCIA_GCRX_CXOE" on UC100 board. * This leads to board-hangup! (sr, 8 Dez. 2004) */ static void cfg_ports (void) { volatile immap_t *immap; immap = (immap_t *)CONFIG_SYS_IMMR; /* * Configure Port A for MAX1602 PC-Card Power-Interface Switch */ immap->im_ioport.iop_padat &= ~0x8000; /* set port x output to low */ immap->im_ioport.iop_padir |= 0x8000; /* enable port x as output */ debug ("Set Port A: PAR: %08x DIR: %08x DAT: %08x\n", immap->im_ioport.iop_papar, immap->im_ioport.iop_padir, immap->im_ioport.iop_padat); } 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 *)CONFIG_SYS_IMMR; sysp = (sysconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_siu_conf)); pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); cp = (cpm8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_cpm)); /* Configure Ports for TPS2211A PC-Card Power-Interface Switch */ cfg_ports (); /* * 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 */ PCMCIA_PGCRX(_slot_) = reg; udelay(500); /* * 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) { puts (" 5.0V card found: "); } else { puts (" 3.3V card found: "); } /* switch VCC on */ immap->im_ioport.iop_padat |= 0x8000; /* power enable 3.3V */ udelay(10000); 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 cpm8xx_t *cp; volatile pcmconf8xx_t *pcmp; u_long reg; debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); immap = (immap_t *)CONFIG_SYS_IMMR; pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); /* switch VCC off */ immap->im_ioport.iop_padat &= ~0x8000; /* power disable 3.3V */ /* Configure PCMCIA General Control Register */ debug ("Disable PCMCIA buffers and assert RESET\n"); reg = 0; reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ 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 *)CONFIG_SYS_IMMR; pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_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 */ PCMCIA_PGCRX(_slot_) = reg; udelay(500); /* * Configure Port C pins for * 5 Volts Enable and 3 Volts enable, * Turn all power pins to Hi-Z */ debug ("PCMCIA power OFF\n"); cfg_ports (); /* Enables switch, but all in Hi-Z */ 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 /* CONFIG_PCMCIA */