/*
- * (C) Copyright 2000-2002
+ * (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#if defined(CONFIG_LWMON)
#include <i2c.h>
#endif
+#ifdef CONFIG_PXA_PCMCIA
+#include <asm/arch/pxa-regs.h>
+#endif
+
+#include <asm/io.h>
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) || \
((CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD))
static int hardware_enable (int slot);
static int voltage_set(int slot, int vcc, int vpp);
-#ifndef CONFIG_I82365
+#if (! defined(CONFIG_I82365)) && (! defined(CONFIG_PXA_PCMCIA))
static u_int m8xx_get_graycode(u_int size);
-#endif /* CONFIG_I82365 */
+#endif /* !CONFIG_I82365, !CONFIG_PXA_PCMCIA */
#if 0
static u_int m8xx_get_speed(u_int ns, u_int is_io);
#endif
/* -------------------------------------------------------------------- */
+#ifndef CONFIG_PXA_PCMCIA
+
/* look up table for pgcrx registers */
static u_int *pcmcia_pgcrx[2] = {
&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcra,
&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb,
};
-
#define PCMCIA_PGCRX(slot) (*pcmcia_pgcrx[slot])
+#endif /* CONFIG_PXA_PCMCIA */
+
#endif /* CONFIG_I82365 */
-#ifdef CONFIG_IDE_8xx_PCCARD
+#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA)
static void print_funcid (int func);
static void print_fixed (volatile uchar *p);
static int identify (volatile uchar *p);
static int check_ide_device (int slot);
-#endif /* CONFIG_IDE_8xx_PCCARD */
+#endif /* CONFIG_IDE_8xx_PCCARD, CONFIG_PXA_PCMCIA */
const char *indent = "\t ";
rc = i82365_init();
- if (rc == 0)
- {
+ if (rc == 0) {
rc = check_ide_device(0);
}
}
#else
+#ifndef CONFIG_PXA_PCMCIA
+
#ifdef CONFIG_HMI10
# define HMI10_FRAM_TIMING (PCMCIA_SHT(2) | PCMCIA_SST(2) | PCMCIA_SL(4))
#endif
}
return (rc);
}
+
+#endif /* CONFIG_PXA_PCMCIA */
+
#endif /* CONFIG_I82365 */
+#ifdef CONFIG_PXA_PCMCIA
+
+static int hardware_enable (int slot)
+{
+ return 0; /* No hardware to enable */
+}
+
+static int hardware_disable(int slot)
+{
+ return 0; /* No hardware to disable */
+}
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+ return 0;
+}
+
+void msWait(unsigned msVal)
+{
+ udelay(msVal*1000);
+}
+
+int pcmcia_on (void)
+{
+ unsigned int reg_arr[] = {
+ 0x48000028, CFG_MCMEM0_VAL,
+ 0x4800002c, CFG_MCMEM1_VAL,
+ 0x48000030, CFG_MCATT0_VAL,
+ 0x48000034, CFG_MCATT1_VAL,
+ 0x48000038, CFG_MCIO0_VAL,
+ 0x4800003c, CFG_MCIO1_VAL,
+
+ 0, 0
+ };
+ int i, rc;
+
+#ifdef CONFIG_EXADRON1
+ int cardDetect;
+ volatile unsigned int *v_pBCRReg =
+ (volatile unsigned int *) 0x08000000;
+#endif
+
+ debug ("%s\n", __FUNCTION__);
+
+ i = 0;
+ while (reg_arr[i])
+ *((volatile unsigned int *) reg_arr[i++]) |= reg_arr[i++];
+ udelay (1000);
+
+ debug ("%s: programmed mem controller \n", __FUNCTION__);
+
+#ifdef CONFIG_EXADRON1
+
+/*define useful BCR masks */
+#define BCR_CF_INIT_VAL 0x00007230
+#define BCR_CF_PWRON_BUSOFF_RESETOFF_VAL 0x00007231
+#define BCR_CF_PWRON_BUSOFF_RESETON_VAL 0x00007233
+#define BCR_CF_PWRON_BUSON_RESETON_VAL 0x00007213
+#define BCR_CF_PWRON_BUSON_RESETOFF_VAL 0x00007211
+
+ /* we see from the GPIO bit if the card is present */
+ cardDetect = !(GPLR0 & GPIO_bit (14));
+
+ if (cardDetect) {
+ printf ("No PCMCIA card found!\n");
+ }
+
+ /* reset the card via the BCR line */
+ *v_pBCRReg = (unsigned) BCR_CF_INIT_VAL;
+ msWait (500);
+
+ *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETOFF_VAL;
+ msWait (500);
+
+ *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSOFF_RESETON_VAL;
+ msWait (500);
+
+ *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETON_VAL;
+ msWait (500);
+
+ *v_pBCRReg = (unsigned) BCR_CF_PWRON_BUSON_RESETOFF_VAL;
+ msWait (1500);
+
+ /* enable address bus */
+ GPCR1 = 0x01;
+ /* and the first CF slot */
+ MECR = 0x00000002;
+
+#endif /* EXADRON 1 */
+
+ rc = check_ide_device (0); /* use just slot 0 */
+
+ return rc;
+}
+
+#endif /* CONFIG_PXA_PCMCIA */
+
/* -------------------------------------------------------------------- */
#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
return 0;
}
#else
+
+#ifndef CONFIG_PXA_PCMCIA
+
static int pcmcia_off (void)
{
int i;
hardware_disable(_slot_);
return 0;
}
+
+#endif /* CONFIG_PXA_PCMCIA */
+
#endif /* CONFIG_I82365 */
+#ifdef CONFIG_PXA_PCMCIA
+static int pcmcia_off (void)
+{
+ return 0;
+}
+#endif
+
#endif /* CFG_CMD_PCMCIA */
/* -------------------------------------------------------------------- */
-#ifdef CONFIG_IDE_8xx_PCCARD
+#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA)
#define MAX_TUPEL_SZ 512
#define MAX_FEATURES 4
ide_devices_found |= (1 << slot);
+#if CONFIG_CPC45
+#else
/* set I/O area in config reg -> only valid for ARGOSY D5!!! */
*((uchar *)(addr + config_base)) = 1;
-
+#endif
+#if 0
+ printf("\n## Config_base = %04x ###\n", config_base);
+ printf("Configuration Option Register: %02x @ %x\n", readb(addr + config_base), addr + config_base);
+ printf("Card Configuration and Status Register: %02x\n", readb(addr + config_base + 2));
+ printf("Pin Replacement Register Register: %02x\n", readb(addr + config_base + 4));
+ printf("Socket and Copy Register: %02x\n", readb(addr + config_base + 6));
+#endif
return (0);
}
#endif /* CONFIG_IDE_8xx_PCCARD */
#endif /* R360MPI */
/* -------------------------------------------------------------------- */
-/* KUP4K Board */
+/* KUP4K and KUP4X Boards */
/* -------------------------------------------------------------------- */
-#if defined(CONFIG_KUP4K)
+#if defined(CONFIG_KUP4K) || defined(CONFIG_KUP4X)
-#define PCMCIA_BOARD_MSG "KUP4K"
+#define PCMCIA_BOARD_MSG "KUP"
#define KUP4K_PCMCIA_B_3V3 (0x00020000)
return (0);
}
-#endif /* KUP4K */
+#endif /* KUP4K || KUP4X */
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */
-#ifndef CONFIG_I82365
+#if ( ! defined(CONFIG_I82365) && ! defined(CONFIG_PXA_PCMCIA) )
static u_int m8xx_get_graycode(u_int size)
{
/* -------------------------------------------------------------------- */
-#ifdef CONFIG_IDE_8xx_PCCARD
+#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA)
static void print_funcid (int func)
{
puts (indent);
/* -------------------------------------------------------------------- */
-#ifdef CONFIG_IDE_8xx_PCCARD
+#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA)
static void print_fixed (volatile uchar *p)
{
if (p == NULL)
/* -------------------------------------------------------------------- */
-#ifdef CONFIG_IDE_8xx_PCCARD
+#if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_PXA_PCMCIA)
#define MAX_IDENT_CHARS 64
#define MAX_IDENT_FIELDS 4
}
#endif /* CONFIG_IDE_8xx_PCCARD */
+/* -------------------------------------------------------------------- */
+/* NETTA board by Intracom S.A. */
+/* -------------------------------------------------------------------- */
+
+#if defined(CONFIG_NETTA)
+
+/* some sane bit macros */
+#define _BD(_b) (1U << (31-(_b)))
+#define _BDR(_l, _h) (((((1U << (31-(_l))) - 1) << 1) | 1) & ~((1U << (31-(_h))) - 1))
+
+#define _BW(_b) (1U << (15-(_b)))
+#define _BWR(_l, _h) (((((1U << (15-(_l))) - 1) << 1) | 1) & ~((1U << (15-(_h))) - 1))
+
+#define _BB(_b) (1U << (7-(_b)))
+#define _BBR(_l, _h) (((((1U << (7-(_l))) - 1) << 1) | 1) & ~((1U << (7-(_h))) - 1))
+
+#define _B(_b) _BD(_b)
+#define _BR(_l, _h) _BDR(_l, _h)
+
+#define PCMCIA_BOARD_MSG "NETTA"
+
+static const unsigned short vppd_masks[2] = { _BW(14), _BW(15) };
+
+static void cfg_vppd(int no)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask;
+
+ if ((unsigned int)no >= sizeof(vppd_masks)/sizeof(vppd_masks[0]))
+ return;
+
+ mask = vppd_masks[no];
+
+ immap->im_ioport.iop_papar &= ~mask;
+ immap->im_ioport.iop_paodr &= ~mask;
+ immap->im_ioport.iop_padir |= mask;
+}
+
+static void set_vppd(int no, int what)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask;
+
+ if ((unsigned int)no >= sizeof(vppd_masks)/sizeof(vppd_masks[0]))
+ return;
+
+ mask = vppd_masks[no];
+
+ if (what)
+ immap->im_ioport.iop_padat |= mask;
+ else
+ immap->im_ioport.iop_padat &= ~mask;
+}
+
+static const unsigned short vccd_masks[2] = { _BW(10), _BW(6) };
+
+static void cfg_vccd(int no)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask;
+
+ if ((unsigned int)no >= sizeof(vccd_masks)/sizeof(vccd_masks[0]))
+ return;
+
+ mask = vccd_masks[no];
+
+ immap->im_ioport.iop_papar &= ~mask;
+ immap->im_ioport.iop_paodr &= ~mask;
+ immap->im_ioport.iop_padir |= mask;
+}
+
+static void set_vccd(int no, int what)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask;
+
+ if ((unsigned int)no >= sizeof(vccd_masks)/sizeof(vccd_masks[0]))
+ return;
+
+ mask = vccd_masks[no];
+
+ if (what)
+ immap->im_ioport.iop_padat |= mask;
+ else
+ immap->im_ioport.iop_padat &= ~mask;
+}
+
+static const unsigned short oc_mask = _BW(8);
+
+static void cfg_oc(void)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask = oc_mask;
+
+ immap->im_ioport.iop_pcdir &= ~mask;
+ immap->im_ioport.iop_pcso &= ~mask;
+ immap->im_ioport.iop_pcint &= ~mask;
+ immap->im_ioport.iop_pcpar &= ~mask;
+}
+
+static int get_oc(void)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask = oc_mask;
+ int what;
+
+ what = !!(immap->im_ioport.iop_pcdat & mask);;
+ return what;
+}
+
+static const unsigned short shdn_mask = _BW(12);
+
+static void cfg_shdn(void)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask;
+
+ mask = shdn_mask;
+
+ immap->im_ioport.iop_papar &= ~mask;
+ immap->im_ioport.iop_paodr &= ~mask;
+ immap->im_ioport.iop_padir |= mask;
+}
+
+static void set_shdn(int what)
+{
+ volatile immap_t *immap = (immap_t *)CFG_IMMR;
+ unsigned short mask;
+
+ mask = shdn_mask;
+
+ if (what)
+ immap->im_ioport.iop_padat |= mask;
+ else
+ immap->im_ioport.iop_padat &= ~mask;
+}
+
+static void cfg_ports (void);
+
+static int hardware_enable(int slot)
+{
+ volatile immap_t *immap;
+ volatile cpm8xx_t *cp;
+ volatile pcmconf8xx_t *pcmp;
+ volatile sysconf8xx_t *sysp;
+ uint reg, pipr, mask;
+ int i;
+
+ 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 Ports for TPS2211A PC-Card Power-Interface Switch */
+ cfg_ports ();
+
+ /* 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);
+
+ /*
+ * 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: Set VAVCC to 3.3V or 5V, set VAVPP to Hi-Z
+ */
+ mask = PCMCIA_VS1(slot) | PCMCIA_VS2(slot);
+ pipr = pcmp->pcmc_pipr;
+ debug ("PIPR: 0x%x ==> VS1=o%s, VS2=o%s\n",
+ pipr,
+ (reg&PCMCIA_VS1(slot))?"n":"ff",
+ (reg&PCMCIA_VS2(slot))?"n":"ff");
+
+ if ((pipr & mask) == mask) {
+ set_vppd(0, 1); set_vppd(1, 1); /* VAVPP => Hi-Z */
+ set_vccd(0, 0); set_vccd(1, 1); /* 5V on, 3V off */
+ puts (" 5.0V card found: ");
+ } else {
+ set_vppd(0, 1); set_vppd(1, 1); /* VAVPP => Hi-Z */
+ set_vccd(0, 1); set_vccd(1, 0); /* 5V off, 3V on */
+ puts (" 3.3V card found: ");
+ }
+
+ /* Wait 500 ms; use this to check for over-current */
+ for (i=0; i<5000; ++i) {
+ if (!get_oc()) {
+ printf (" *** Overcurrent - Safety shutdown ***\n");
+ set_vccd(0, 0); set_vccd(1, 0); /* VAVPP => Hi-Z */
+ return (1);
+ }
+ udelay (100);
+ }
+
+ 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 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));
+
+ /* 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;
+
+ /* All voltages off / Hi-Z */
+ set_vppd(0, 1); set_vppd(1, 1);
+ set_vccd(0, 1); set_vccd(1, 1);
+
+ udelay(10000);
+
+ return (0);
+}
+#endif /* CFG_CMD_PCMCIA */
+
+
+static int voltage_set(int slot, int vcc, int vpp)
+{
+ volatile immap_t *immap;
+ volatile cpm8xx_t *cp;
+ volatile pcmconf8xx_t *pcmp;
+ u_long reg;
+ ushort sreg;
+
+ 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;
+ cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
+ 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 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 */
+
+ sreg = immap->im_ioport.iop_pcdat;
+ set_vppd(0, 1); set_vppd(1, 1);
+
+ switch(vcc) {
+ case 0:
+ break; /* Switch off */
+
+ case 33:
+ set_vccd(0, 1); set_vccd(1, 0);
+ break;
+
+ case 50:
+ set_vccd(0, 0); set_vccd(1, 1);
+ 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");
+
+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);
+}
+
+static void cfg_ports (void)
+{
+ volatile immap_t *immap;
+ volatile cpm8xx_t *cp;
+
+ immap = (immap_t *)CFG_IMMR;
+ cp = (cpm8xx_t *)(&(((immap_t *)CFG_IMMR)->im_cpm));
+
+
+ cfg_vppd(0); cfg_vppd(1); /* VPPD0,VPPD1 VAVPP => Hi-Z */
+ cfg_vccd(0); cfg_vccd(1); /* 3V and 5V off */
+ cfg_shdn();
+ cfg_oc();
+
+ /*
+ * Configure Port A for TPS2211 PC-Card Power-Interface Switch
+ *
+ * Switch off all voltages, assert shutdown
+ */
+ set_vppd(0, 1); set_vppd(1, 1);
+ set_vccd(0, 0); set_vccd(1, 0);
+ set_shdn(1);
+
+ udelay(100000);
+}
+
+#endif /* NETTA */
+
+
+/* -------------------------------------------------------------------- */
+/* UC100 Boards */
+/* -------------------------------------------------------------------- */
+
+#if defined(CONFIG_UC100)
+
+#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);
+
+static int 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 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 (CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+static int 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 *)CFG_IMMR;
+ pcmp = (pcmconf8xx_t *)(&(((immap_t *)CFG_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 /* CFG_CMD_PCMCIA */
+
+
+static int 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 */
+ 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);
+}
+
+static void cfg_ports (void)
+{
+ volatile immap_t *immap;
+
+ immap = (immap_t *)CFG_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);
+}
+
+#endif /* UC100 */
+
+
/* -------------------------------------------------------------------- */
#endif /* CFG_CMD_PCMCIA || (CFG_CMD_IDE && CONFIG_IDE_8xx_PCCARD) */
projects / u-boot / blobdiff