/*
- * (C) Copyright 2000-2004
+ * (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
/* SC8xx Boards by SinoVee Microsystems */
/* -------------------------------------------------------------------- */
-#if defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx)
+#if (defined(CONFIG_TQM8xxL) || defined(CONFIG_SVM_SC8xx)) \
+ && !defined(CONFIG_VIRTLAB2)
#if defined(CONFIG_TQM8xxL)
#define PCMCIA_BOARD_MSG "TQM8xxL"
#endif /* TQM8xxL */
+/* -------------------------------------------------------------------- */
+/* Virtlab2 Board by TQ Components */
+/* -------------------------------------------------------------------- */
+
+#if defined(CONFIG_VIRTLAB2)
+#define PCMCIA_BOARD_MSG "Virtlab2"
+
+static int hardware_enable(int slot)
+{
+ volatile pcmconf8xx_t *pcmp =
+ (pcmconf8xx_t *)&(((immap_t *)CFG_IMMR)->im_pcmcia);
+ volatile unsigned char *powerctl =
+ (volatile unsigned char *)PCMCIA_CTRL;
+ volatile sysconf8xx_t *sysp =
+ (sysconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_siu_conf));
+ unsigned int reg, mask;
+
+ debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
+
+ udelay(10000);
+
+ /*
+ * Configure SIUMCR to enable PCMCIA port B
+ */
+ 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 = __MY_PCMCIA_GCRX_CXRESET; /* active high */
+ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
+
+ PCMCIA_PGCRX(slot) = reg;
+ udelay(500);
+
+ /* remove all power */
+ *powerctl = 0;
+
+ /*
+ * 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) {
+ *powerctl = 2; /* Enable 5V Vccout */
+ puts (" 5.0V card found: ");
+ } else {
+ *powerctl = 1; /* Enable 3.3 V Vccout */
+ puts (" 3.3V card found: ");
+ }
+
+ 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 */
+
+ PCMCIA_PGCRX(slot) = reg;
+
+ udelay(250000); /* some cards need >150 ms to come up :-( */
+
+ debug ("# hardware_enable done\n");
+
+ return (0);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+static int hardware_disable(int slot)
+{
+ volatile unsigned char *powerctl =
+ (volatile unsigned char *)PCMCIA_CTRL;
+ unsigned long reg;
+
+ debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot);
+
+ /* remove all power */
+ *powerctl = 0;
+
+ debug ("Disable PCMCIA buffers and assert RESET\n");
+ reg = __MY_PCMCIA_GCRX_CXRESET; /* active high */
+ reg |= __MY_PCMCIA_GCRX_CXOE; /* active low */
+
+ PCMCIA_PGCRX(slot) = reg;
+
+ udelay(10000);
+
+ return (0);
+}
+#endif
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+#ifdef DEBUG
+ volatile pcmconf8xx_t *pcmp =
+ (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia));
+#endif
+ volatile unsigned char *powerctl =
+ (volatile unsigned char *)PCMCIA_CTRL;
+ unsigned 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);
+
+ /*
+ * 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 pins for 5 Volts Enable and 3 Volts enable,
+ * Turn off all power.
+ */
+ debug ("PCMCIA power OFF\n");
+ reg = 0;
+ switch(vcc) {
+ case 0: break;
+ case 33: reg = 0x0001; break;
+ case 50: reg = 0x0002; 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");
+
+ *powerctl = reg;
+
+ if (reg) {
+ debug ("PCMCIA powered at %sV\n", (reg&0x0004) ? "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 /* CONFIG_VIRTLAB2 */
/* -------------------------------------------------------------------- */
/* LWMON Board */
projects / oweals / u-boot.git / blobdiff