/* -------------------------------------------------------------------- */ /* TQM8xxL Boards by TQ Components */ /* SC8xx Boards by SinoVee Microsystems */ /* -------------------------------------------------------------------- */ #include <common.h> #ifdef CONFIG_8xx #include <mpc8xx.h> #endif #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 #if defined(CONFIG_PCMCIA) \ && (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx)) #if defined(CONFIG_VIRTLAB2) #define PCMCIA_BOARD_MSG "Virtlab2" #elif defined(CONFIG_TQM8xxL) #define PCMCIA_BOARD_MSG "TQM8xxL" #elif defined(CONFIG_SVM_SC8xx) #define PCMCIA_BOARD_MSG "SC8xx" #endif #if defined(CONFIG_NSCU) #define power_config(slot) do {} while (0) #define power_off(slot) do {} while (0) #define power_on_5_0(slot) do {} while (0) #define power_on_3_3(slot) do {} while (0) #elif defined(CONFIG_VIRTLAB2) #define power_config(slot) do {} while (0) static inline void power_off(int slot) { volatile unsigned char *powerctl = (volatile unsigned char *)PCMCIA_CTRL; *powerctl = 0; } static inline void power_on_5_0(int slot) { volatile unsigned char *powerctl = (volatile unsigned char *)PCMCIA_CTRL; *powerctl = 2; /* Enable 5V Vccout */ } static inline void power_on_3_3(int slot) { volatile unsigned char *powerctl = (volatile unsigned char *)PCMCIA_CTRL; *powerctl = 1; /* Enable 3.3V Vccout */ } #else static inline void power_config(int slot) { volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; /* * Configure Port C pins for * 5 Volts Enable and 3 Volts enable */ immap->im_ioport.iop_pcpar &= ~(0x0002 | 0x0004); immap->im_ioport.iop_pcso &= ~(0x0002 | 0x0004); } static inline void power_off(int slot) { volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004); } static inline void power_on_5_0(int slot) { volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; immap->im_ioport.iop_pcdat |= 0x0004; immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004); } static inline void power_on_3_3(int slot) { volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; immap->im_ioport.iop_pcdat |= 0x0002; immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004); } #endif static inline int check_card_is_absent(int slot) { volatile pcmconf8xx_t *pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); return pcmp->pcmc_pipr & (0x18000000 >> (slot << 4)); } #ifdef NSCU_OE_INV #define NSCU_GCRX_CXOE 0 #else #define NSCU_GCRX_CXOE __MY_PCMCIA_GCRX_CXOE #endif int pcmcia_hardware_enable(int slot) { volatile pcmconf8xx_t *pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); volatile sysconf8xx_t *sysp = (sysconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_siu_conf)); uint reg, mask; debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); udelay(10000); /* * 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 |= NSCU_GCRX_CXOE; PCMCIA_PGCRX(slot) = reg; udelay(500); power_config(slot); power_off(slot); /* * 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 (check_card_is_absent(slot)) { 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) { power_on_5_0(slot); puts (" 5.0V card found: "); } else { power_on_3_3(slot); puts (" 3.3V card found: "); } #if 0 /* VCC switch error flag, PCMCIA slot INPACK_ pin */ cp->cp_pbdir &= ~(0x0020 | 0x0010); cp->cp_pbpar &= ~(0x0020 | 0x0010); udelay(500000); #endif udelay(1000); 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 */ reg &= ~NSCU_GCRX_CXOE; 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) { u_long reg; debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); /* remove all power */ power_off(slot); debug ("Disable PCMCIA buffers and assert RESET\n"); reg = 0; reg |= __MY_PCMCIA_GCRX_CXRESET; /* active high */ reg |= NSCU_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(slot) = reg; udelay(10000); return (0); } #endif int pcmcia_voltage_set(int slot, int vcc, int vpp) { #ifndef CONFIG_NSCU u_long reg; # ifdef DEBUG volatile pcmconf8xx_t *pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); # endif 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); /* * 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 */ reg |= NSCU_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(slot) = reg; udelay(500); debug ("PCMCIA power OFF\n"); power_config(slot); power_off(slot); switch(vcc) { case 0: break; case 33: power_on_3_3(slot); break; case 50: power_on_5_0(slot); 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 (vcc) debug("PCMCIA powered at %sV\n", (vcc == 50) ? "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 */ reg &= ~NSCU_GCRX_CXOE; /* active low */ PCMCIA_PGCRX(slot) = reg; udelay(500); debug("voltage_set: " PCMCIA_BOARD_MSG " Slot %c, DONE\n", slot+'A'); #endif /* CONFIG_NSCU */ return (0); } #endif /* CONFIG_PCMCIA && (CONFIG_TQM8xxL || CONFIG_SVM_SC8xx) */