diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/Makefile | 6 | ||||
| -rw-r--r-- | drivers/mpc8xx_pcmcia.c | 302 | ||||
| -rw-r--r-- | drivers/pxa_pcmcia.c | 95 | ||||
| -rw-r--r-- | drivers/rpx_pcmcia.c | 71 | ||||
| -rw-r--r-- | drivers/tqm8xx_pcmcia.c | 328 |
5 files changed, 800 insertions, 2 deletions
diff --git a/drivers/Makefile b/drivers/Makefile index e6176ed..8e79528 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -31,7 +31,7 @@ OBJS = 3c589.o 5701rls.o ali512x.o \ bcm570x.o bcm570x_autoneg.o cfb_console.o cfi_flash.o \ cs8900.o ct69000.o dataflash.o dc2114x.o dm9000x.o \ e1000.o eepro100.o \ - i8042.o i82365.o inca-ip_sw.o keyboard.o \ + i8042.o inca-ip_sw.o keyboard.o \ lan91c96.o \ natsemi.o ne2000.o netarm_eth.o netconsole.o \ ns16550.o ns8382x.o ns87308.o ns7520_eth.o omap1510_i2c.o \ @@ -48,7 +48,9 @@ OBJS = 3c589.o 5701rls.o ali512x.o \ ti_pci1410a.o tigon3.o tsec.o \ usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbtty.o \ videomodes.o w83c553f.o \ - ks8695eth.o + ks8695eth.o \ + pxa_pcmcia.o mpc8xx_pcmcia.o tqm8xx_pcmcia.o \ + rpx_pcmcia.o all: $(LIB) diff --git a/drivers/mpc8xx_pcmcia.c b/drivers/mpc8xx_pcmcia.c new file mode 100644 index 0000000..1fb106f --- /dev/null +++ b/drivers/mpc8xx_pcmcia.c @@ -0,0 +1,302 @@ +#include <common.h> +#include <mpc8xx.h> +#include <pcmcia.h> + +#undef CONFIG_PCMCIA + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +#define CONFIG_PCMCIA +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD) +#define CONFIG_PCMCIA +#endif + +#if defined(CONFIG_8xx) && defined(CONFIG_PCMCIA) + +#if defined(CONFIG_IDE_8xx_PCCARD) +extern int check_ide_device (int slot); +#endif + +extern int pcmcia_hardware_enable (int slot); +extern int pcmcia_voltage_set(int slot, int vcc, int vpp); + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +extern int pcmcia_hardware_disable(int slot); +#endif + +static u_int m8xx_get_graycode(u_int size); +#if 0 /* Disabled */ +static u_int m8xx_get_speed(u_int ns, u_int is_io); +#endif + +/* look up table for pgcrx registers */ +u_int *pcmcia_pgcrx[2] = { + &((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcra, + &((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pgcrb, +}; + +/* + * Search this table to see if the windowsize is + * supported... + */ + +#define M8XX_SIZES_NO 32 + +static const u_int m8xx_size_to_gray[M8XX_SIZES_NO] = +{ 0x00000001, 0x00000002, 0x00000008, 0x00000004, + 0x00000080, 0x00000040, 0x00000010, 0x00000020, + 0x00008000, 0x00004000, 0x00001000, 0x00002000, + 0x00000100, 0x00000200, 0x00000800, 0x00000400, + + 0x0fffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0x01000000, 0x02000000, 0xffffffff, 0x04000000, + 0x00010000, 0x00020000, 0x00080000, 0x00040000, + 0x00800000, 0x00400000, 0x00100000, 0x00200000 }; + + +/* -------------------------------------------------------------------- */ + +#ifdef CONFIG_HMI10 +#define HMI10_FRAM_TIMING ( PCMCIA_SHT(2) \ + | PCMCIA_SST(2) \ + | PCMCIA_SL(4)) +#endif + +#if defined(CONFIG_LWMON) || defined(CONFIG_NSCU) +#define CFG_PCMCIA_TIMING ( PCMCIA_SHT(9) \ + | PCMCIA_SST(3) \ + | PCMCIA_SL(12)) +#else +#define CFG_PCMCIA_TIMING ( PCMCIA_SHT(2) \ + | PCMCIA_SST(4) \ + | PCMCIA_SL(9)) +#endif + +/* -------------------------------------------------------------------- */ + +int pcmcia_on (void) +{ + u_long reg, base; + pcmcia_win_t *win; + u_int slotbit; + u_int rc, slot; + int i; + + debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); + + /* intialize the fixed memory windows */ + win = (pcmcia_win_t *)(&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pbr0); + base = CFG_PCMCIA_MEM_ADDR; + + if((reg = m8xx_get_graycode(CFG_PCMCIA_MEM_SIZE)) == -1) { + printf ("Cannot set window size to 0x%08x\n", + CFG_PCMCIA_MEM_SIZE); + return (1); + } + + slotbit = PCMCIA_SLOT_x; + for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) { + win->br = base; + +#if (PCMCIA_SOCKETS_NO == 2) + if (i == 4) /* Another slot starting from win 4 */ + slotbit = (slotbit ? PCMCIA_PSLOT_A : PCMCIA_PSLOT_B); +#endif + switch (i) { +#ifdef CONFIG_IDE_8xx_PCCARD + case 4: +#ifdef CONFIG_HMI10 + { /* map FRAM area */ + win->or = ( PCMCIA_BSIZE_256K + | PCMCIA_PPS_8 + | PCMCIA_PRS_ATTR + | slotbit + | PCMCIA_PV + | HMI10_FRAM_TIMING ); + break; + } +#endif + case 0: { /* map attribute memory */ + win->or = ( PCMCIA_BSIZE_64M + | PCMCIA_PPS_8 + | PCMCIA_PRS_ATTR + | slotbit + | PCMCIA_PV + | CFG_PCMCIA_TIMING ); + break; + } + case 5: + case 1: { /* map I/O window for data reg */ + win->or = ( PCMCIA_BSIZE_1K + | PCMCIA_PPS_16 + | PCMCIA_PRS_IO + | slotbit + | PCMCIA_PV + | CFG_PCMCIA_TIMING ); + break; + } + case 6: + case 2: { /* map I/O window for cmd/ctrl reg block */ + win->or = ( PCMCIA_BSIZE_1K + | PCMCIA_PPS_8 + | PCMCIA_PRS_IO + | slotbit + | PCMCIA_PV + | CFG_PCMCIA_TIMING ); + break; + } +#endif /* CONFIG_IDE_8xx_PCCARD */ +#ifdef CONFIG_HMI10 + case 3: { /* map I/O window for 4xUART data/ctrl */ + win->br += 0x40000; + win->or = ( PCMCIA_BSIZE_256K + | PCMCIA_PPS_8 + | PCMCIA_PRS_IO + | slotbit + | PCMCIA_PV + | CFG_PCMCIA_TIMING ); + break; + } +#endif /* CONFIG_HMI10 */ + default: /* set to not valid */ + win->or = 0; + break; + } + + debug ("MemWin %d: PBR 0x%08lX POR %08lX\n", + i, win->br, win->or); + base += CFG_PCMCIA_MEM_SIZE; + ++win; + } + + for (i=0, rc=0, slot=_slot_; i<PCMCIA_SOCKETS_NO; i++, slot = !slot) { + /* turn off voltage */ + if ((rc = pcmcia_voltage_set(slot, 0, 0))) + continue; + + /* Enable external hardware */ + if ((rc = pcmcia_hardware_enable(slot))) + continue; + +#ifdef CONFIG_IDE_8xx_PCCARD + if ((rc = check_ide_device(i))) + continue; +#endif + } + return rc; +} + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +int pcmcia_off (void) +{ + int i; + pcmcia_win_t *win; + + printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); + + /* clear interrupt state, and disable interrupts */ + ((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pscr = PCMCIA_MASK(_slot_); + ((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_per &= ~PCMCIA_MASK(_slot_); + + /* turn off interrupt and disable CxOE */ + PCMCIA_PGCRX(_slot_) = __MY_PCMCIA_GCRX_CXOE; + + /* turn off memory windows */ + win = (pcmcia_win_t *)(&((immap_t *)CFG_IMMR)->im_pcmcia.pcmc_pbr0); + + for (i=0; i<PCMCIA_MEM_WIN_NO; ++i) { + /* disable memory window */ + win->or = 0; + ++win; + } + + /* turn off voltage */ + pcmcia_voltage_set(_slot_, 0, 0); + + /* disable external hardware */ + printf ("Shutdown and Poweroff " PCMCIA_SLOT_MSG "\n"); + pcmcia_hardware_disable(_slot_); + return 0; +} +#endif /* CFG_CMD_PCMCIA */ + + +static u_int m8xx_get_graycode(u_int size) +{ + u_int k; + + for (k = 0; k < M8XX_SIZES_NO; k++) { + if(m8xx_size_to_gray[k] == size) + break; + } + + if((k == M8XX_SIZES_NO) || (m8xx_size_to_gray[k] == -1)) + k = -1; + + return k; +} + +#if 0 + +#if defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE) + +/* The RPX boards seems to have it's bus monitor timeout set to 6*8 clocks. + * SYPCR is write once only, therefore must the slowest memory be faster + * than the bus monitor or we will get a machine check due to the bus timeout. + */ +#undef PCMCIA_BMT_LIMIT +#define PCMCIA_BMT_LIMIT (6*8) +#endif + +static u_int m8xx_get_speed(u_int ns, u_int is_io) +{ + u_int reg, clocks, psst, psl, psht; + + if(!ns) { + + /* + * We get called with IO maps setup to 0ns + * if not specified by the user. + * They should be 255ns. + */ + + if(is_io) + ns = 255; + else + ns = 100; /* fast memory if 0 */ + } + + /* + * In PSST, PSL, PSHT fields we tell the controller + * timing parameters in CLKOUT clock cycles. + * CLKOUT is the same as GCLK2_50. + */ + + /* how we want to adjust the timing - in percent */ + +#define ADJ 180 /* 80 % longer accesstime - to be sure */ + + clocks = ((M8XX_BUSFREQ / 1000) * ns) / 1000; + clocks = (clocks * ADJ) / (100*1000); + + if(clocks >= PCMCIA_BMT_LIMIT) { + DEBUG(0, "Max access time limit reached\n"); + clocks = PCMCIA_BMT_LIMIT-1; + } + + psst = clocks / 7; /* setup time */ + psht = clocks / 7; /* hold time */ + psl = (clocks * 5) / 7; /* strobe length */ + + psst += clocks - (psst + psht + psl); + + reg = psst << 12; + reg |= psl << 7; + reg |= psht << 16; + + return reg; +} +#endif /* 0 */ + +#endif /* CONFIG_8xx && CONFIG_PCMCIA */ diff --git a/drivers/pxa_pcmcia.c b/drivers/pxa_pcmcia.c new file mode 100644 index 0000000..d9d38bb --- /dev/null +++ b/drivers/pxa_pcmcia.c @@ -0,0 +1,95 @@ +#include <common.h> +#include <config.h> + +#ifdef CONFIG_PXA_PCMCIA + +#include <pcmcia.h> +#include <asm/arch/pxa-regs.h> +#include <asm/io.h> + +static inline 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; +} + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +int pcmcia_off (void) +{ + return 0; +} +#endif + +#endif /* CONFIG_PXA_PCMCIA */ diff --git a/drivers/rpx_pcmcia.c b/drivers/rpx_pcmcia.c new file mode 100644 index 0000000..01ff1d4 --- /dev/null +++ b/drivers/rpx_pcmcia.c @@ -0,0 +1,71 @@ +/* -------------------------------------------------------------------- */ +/* RPX Boards from Embedded Planet */ +/* -------------------------------------------------------------------- */ +#include <common.h> +#include <mpc8xx.h> +#include <pcmcia.h> + +#undef CONFIG_PCMCIA + +#if CONFIG_COMMANDS & CFG_CMD_PCMCIA +#define CONFIG_PCMCIA +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_IDE) && defined(CONFIG_IDE_8xx_PCCARD) +#define CONFIG_PCMCIA +#endif + +#if defined(CONFIG_PCMCIA) \ + && (defined(CONFIG_RPXCLASSIC) || defined(CONFIG_RPXLITE)) + +#define PCMCIA_BOARD_MSG "RPX CLASSIC or RPX LITE" + +int pcmcia_voltage_set(int slot, int vcc, int vpp) +{ + u_long reg = 0; + + switch(vcc) { + case 0: break; + case 33: reg |= BCSR1_PCVCTL4; break; + case 50: reg |= BCSR1_PCVCTL5; break; + default: return 1; + } + + switch(vpp) { + case 0: break; + case 33: + case 50: + if(vcc == vpp) + reg |= BCSR1_PCVCTL6; + else + return 1; + break; + case 120: + reg |= BCSR1_PCVCTL7; + default: return 1; + } + + /* first, turn off all power */ + *((uint *)RPX_CSR_ADDR) &= ~(BCSR1_PCVCTL4 | BCSR1_PCVCTL5 + | BCSR1_PCVCTL6 | BCSR1_PCVCTL7); + + /* enable new powersettings */ + *((uint *)RPX_CSR_ADDR) |= reg; + + return 0; +} + +int pcmcia_hardware_enable (int slot) +{ + return 0; /* No hardware to enable */ +} + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +static int pcmcia_hardware_disable(int slot) +{ + return 0; /* No hardware to disable */ +} +#endif /* CONFIG_COMMANDS & CFG_CMD_PCMCIA */ + + +#endif /* CONFIG_PCMCIA && (CONFIG_RPXCLASSIC || CONFIG_RPXLITE) */ diff --git a/drivers/tqm8xx_pcmcia.c b/drivers/tqm8xx_pcmcia.c new file mode 100644 index 0000000..8d4a85c --- /dev/null +++ b/drivers/tqm8xx_pcmcia.c @@ -0,0 +1,328 @@ +/* -------------------------------------------------------------------- */ +/* TQM8xxL Boards by TQ Components */ +/* SC8xx Boards by SinoVee Microsystems */ +/* -------------------------------------------------------------------- */ +#include <common.h> +#include <mpc8xx.h> +#include <pcmcia.h> + +#undef CONFIG_PCMCIA + +#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +#define CONFIG_PCMCIA +#endif + +#if (CONFIG_COMMANDS & CFG_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_HMI10) + +static inline void power_config(int slot) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + /* + * Configure Port B pins for + * 5 Volts Enable and 3 Volts enable + */ + immap->im_cpm.cp_pbpar &= ~(0x00000300); +} + +static inline void power_off(int slot) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + /* remove all power */ + immap->im_cpm.cp_pbdat |= 0x00000300; +} + +static inline void power_on_5_0(int slot) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + immap->im_cpm.cp_pbdat &= ~(0x0000100); + immap->im_cpm.cp_pbdir |= 0x00000300; +} + +static inline void power_on_3_3(int slot) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + immap->im_cpm.cp_pbdat &= ~(0x0000200); + immap->im_cpm.cp_pbdir |= 0x00000300; +} + +#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 *)CFG_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 *)CFG_IMMR; + immap->im_ioport.iop_pcdat &= ~(0x0002 | 0x0004); +} + +static inline void power_on_5_0(int slot) +{ + volatile immap_t *immap = (immap_t *)CFG_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 *)CFG_IMMR; + immap->im_ioport.iop_pcdat |= 0x0002; + immap->im_ioport.iop_pcdir |= (0x0002 | 0x0004); +} + +#endif + +#ifdef CONFIG_HMI10 +static inline int check_card_is_absent(int slot) +{ + volatile pcmconf8xx_t *pcmp = + (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); + return pcmp->pcmc_pipr & (0x10000000 >> (slot << 4)); +} +#else +static inline int check_card_is_absent(int slot) +{ + volatile pcmconf8xx_t *pcmp = + (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); + return pcmp->pcmc_pipr & (0x18000000 >> (slot << 4)); +} +#endif + +#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 *)CFG_IMMR)->im_pcmcia)); + volatile sysconf8xx_t *sysp = + (sysconf8xx_t *)(&(((immap_t *)CFG_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 (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +int pcmcia_hardware_disable(int slot) +{ + volatile pcmconf8xx_t *pcmp = + (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); + 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 /* CFG_CMD_PCMCIA */ + +int pcmcia_voltage_set(int slot, int vcc, int vpp) +{ +#ifndef CONFIG_NSCU + volatile pcmconf8xx_t *pcmp = + (pcmconf8xx_t *)(&(((immap_t *)CFG_IMMR)->im_pcmcia)); + 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); + + /* + * 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) */ |