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Diffstat (limited to 'board/icu862/pcmcia.c')
-rw-r--r--board/icu862/pcmcia.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/board/icu862/pcmcia.c b/board/icu862/pcmcia.c
deleted file mode 100644
index dbe3c3c..0000000
--- a/board/icu862/pcmcia.c
+++ /dev/null
@@ -1,262 +0,0 @@
-#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 "ICU862"
-
-static void cfg_port_B (void)
-{
- volatile cpm8xx_t *cp;
- uint reg;
-
- cp = (cpm8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_cpm));
-
- /*
- * Configure Port B for TPS2205 PC-Card Power-Interface Switch
- *
- * Switch off all voltages, assert shutdown
- */
- reg = cp->cp_pbdat;
- reg |= (TPS2205_VPP_PGM | TPS2205_VPP_VCC | /* VAVPP => Hi-Z */
- TPS2205_VCC3 | TPS2205_VCC5 | /* VAVCC => Hi-Z */
- TPS2205_SHDN); /* enable switch */
- cp->cp_pbdat = reg;
-
- cp->cp_pbpar &= ~(TPS2205_INPUTS | TPS2205_OUTPUTS);
-
- reg = cp->cp_pbdir & ~(TPS2205_INPUTS);
- cp->cp_pbdir = reg | TPS2205_OUTPUTS;
-
- debug ("Set Port B: PAR: %08x DIR: %08x DAT: %08x\n",
- cp->cp_pbpar, cp->cp_pbdir, cp->cp_pbdat);
-}
-
-int pcmcia_hardware_enable(int slot)
-{
- 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);
-
- 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 Port B for TPS2205 PC-Card Power-Interface Switch */
- cfg_port_B ();
-
- /*
- * 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);
-
- /*
- * 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");
-
- reg = cp->cp_pbdat;
- if ((pipr & mask) == mask) {
- reg |= (TPS2205_VPP_PGM | TPS2205_VPP_VCC | /* VAVPP => Hi-Z */
- TPS2205_VCC3); /* 3V off */
- reg &= ~(TPS2205_VCC5); /* 5V on */
- puts (" 5.0V card found: ");
- } else {
- reg |= (TPS2205_VPP_PGM | TPS2205_VPP_VCC | /* VAVPP => Hi-Z */
- TPS2205_VCC5); /* 5V off */
- reg &= ~(TPS2205_VCC3); /* 3V on */
- puts (" 3.3V card found: ");
- }
-
- debug ("\nPB DAT: %08x -> 3.3V %s 5.0V %s VPP_PGM %s VPP_VCC %s\n",
- reg,
- (reg & TPS2205_VCC3) ? "off" : "on",
- (reg & TPS2205_VCC5) ? "off" : "on",
- (reg & TPS2205_VPP_PGM) ? "off" : "on",
- (reg & TPS2205_VPP_VCC) ? "off" : "on" );
-
- cp->cp_pbdat = reg;
-
- /* Wait 500 ms; use this to check for over-current */
- for (i=0; i<5000; ++i) {
- if ((cp->cp_pbdat & TPS2205_OC) == 0) {
- printf (" *** Overcurrent - Safety shutdown ***\n");
- cp->cp_pbdat &= ~(TPS2205_SHDN);
- 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 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;
- cp = (cpm8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_cpm));
- pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
-
- /* Shut down */
- cp->cp_pbdat &= ~(TPS2205_SHDN);
-
- /* 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 cpm8xx_t *cp;
- 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);
-
- cp = (cpm8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_cpm));
- 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 */
- 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_port_B (); /* Enables switch, but all in Hi-Z */
-
- reg = cp->cp_pbdat;
-
- switch(vcc) {
- case 0: break; /* Switch off */
- case 33: reg &= ~TPS2205_VCC3; break; /* Switch on 3.3V */
- case 50: reg &= ~TPS2205_VCC5; break; /* Switch on 5.0V */
- 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");
-
- cp->cp_pbdat = reg;
-
-#ifdef DEBUG
-{
- char *s;
-
- if ((reg & TPS2205_VCC3) == 0) {
- s = "at 3.3V";
- } else if ((reg & TPS2205_VCC5) == 0) {
- s = "at 5.0V";
- } else {
- s = "down";
- }
- printf ("PCMCIA powered %s\n", s);
-}
-#endif
-
-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_PCMCIA */
generated by cgit v1.1 at 2024-11-10 13:58:55 +0000