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author | Stefano Babic <sbabic@denx.de> | 2014-07-16 08:51:30 +0200 |
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committer | Stefano Babic <sbabic@denx.de> | 2014-07-16 08:51:30 +0200 |
commit | dab5e3469d294a4e1ffed8407d296a78e02cc01f (patch) | |
tree | c6378034591210b3142ca3add806d52c6ea22b3b /board/netta/pcmcia.c | |
parent | 14a1613140519a8d0a88e6054c302a8cb3e067a5 (diff) | |
parent | 524123a70761110c5cf3ccc5f52f6d4da071b959 (diff) | |
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Merge branch 'master' of git://git.denx.de/u-boot
Signed-off-by: Stefano Babic <sbabic@denx.de>
Conflicts:
boards.cfg
Diffstat (limited to 'board/netta/pcmcia.c')
-rw-r--r-- | board/netta/pcmcia.c | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/board/netta/pcmcia.c b/board/netta/pcmcia.c deleted file mode 100644 index 3fa1925..0000000 --- a/board/netta/pcmcia.c +++ /dev/null @@ -1,346 +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 - -/* 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 *)CONFIG_SYS_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 *)CONFIG_SYS_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 *)CONFIG_SYS_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 *)CONFIG_SYS_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 *)CONFIG_SYS_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 *)CONFIG_SYS_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 *)CONFIG_SYS_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 *)CONFIG_SYS_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) -{ - 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); -} - -int pcmcia_hardware_enable(int slot) -{ - volatile pcmconf8xx_t *pcmp; - uint reg, pipr, mask; - int i; - - debug ("hardware_enable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); - - udelay(10000); - - pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia)); - - /* 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 defined(CONFIG_CMD_PCMCIA) -int pcmcia_hardware_disable(int slot) -{ - u_long reg; - - debug ("hardware_disable: " PCMCIA_BOARD_MSG " Slot %c\n", 'A'+slot); - - /* 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 - - -int pcmcia_voltage_set(int slot, int vcc, int vpp) -{ - 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); - - 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_ports (); /* Enables switch, but all in Hi-Z */ - - 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); -} - -#endif /* CONFIG_PCMCIA */ |