ide-m8xx.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:20k
- /*
- * linux/drivers/ide/ide-m8xx.c
- *
- * Copyright (C) 2000, 2001 Wolfgang Denk, wd@denx.de
- * Modified for direct IDE interface
- * by Thomas Lange, thomas@corelatus.com
- * Modified for direct IDE interface on 8xx without using the PCMCIA
- * controller
- * by Steven.Scholz@imc-berlin.de
- * Moved out of arch/ppc/kernel/m8xx_setup.c, other minor cleanups
- * by Mathew Locke <mattl@mvista.com>
- */
- #include <linux/config.h>
- #include <linux/errno.h>
- #include <linux/sched.h>
- #include <linux/kernel.h>
- #include <linux/mm.h>
- #include <linux/stddef.h>
- #include <linux/unistd.h>
- #include <linux/ptrace.h>
- #include <linux/slab.h>
- #include <linux/user.h>
- #include <linux/a.out.h>
- #include <linux/tty.h>
- #include <linux/major.h>
- #include <linux/interrupt.h>
- #include <linux/reboot.h>
- #include <linux/init.h>
- #include <linux/blk.h>
- #include <linux/ioport.h>
- #include <linux/ide.h>
- #include <linux/bootmem.h>
- #include <asm/mpc8xx.h>
- #include <asm/mmu.h>
- #include <asm/processor.h>
- #include <asm/residual.h>
- #include <asm/io.h>
- #include <asm/pgtable.h>
- #include <asm/ide.h>
- #include <asm/8xx_immap.h>
- #include <asm/machdep.h>
- #include <asm/irq.h>
- #include "ide_modes.h"
- static int identify (volatile unsigned char *p);
- static void print_fixed (volatile unsigned char *p);
- static void print_funcid (int func);
- static int check_ide_device (unsigned long base);
- static void ide_interrupt_ack (void *dev);
- static void m8xx_ide_tuneproc(ide_drive_t *drive, byte pio);
- typedef struct ide_ioport_desc {
- unsigned long base_off; /* Offset to PCMCIA memory */
- ide_ioreg_t reg_off[IDE_NR_PORTS]; /* controller register offsets */
- int irq; /* IRQ */
- } ide_ioport_desc_t;
- ide_ioport_desc_t ioport_dsc[MAX_HWIFS] = {
- #ifdef IDE0_BASE_OFFSET
- { IDE0_BASE_OFFSET,
- {
- IDE0_DATA_REG_OFFSET,
- IDE0_ERROR_REG_OFFSET,
- IDE0_NSECTOR_REG_OFFSET,
- IDE0_SECTOR_REG_OFFSET,
- IDE0_LCYL_REG_OFFSET,
- IDE0_HCYL_REG_OFFSET,
- IDE0_SELECT_REG_OFFSET,
- IDE0_STATUS_REG_OFFSET,
- IDE0_CONTROL_REG_OFFSET,
- IDE0_IRQ_REG_OFFSET,
- },
- IDE0_INTERRUPT,
- },
- #ifdef IDE1_BASE_OFFSET
- { IDE1_BASE_OFFSET,
- {
- IDE1_DATA_REG_OFFSET,
- IDE1_ERROR_REG_OFFSET,
- IDE1_NSECTOR_REG_OFFSET,
- IDE1_SECTOR_REG_OFFSET,
- IDE1_LCYL_REG_OFFSET,
- IDE1_HCYL_REG_OFFSET,
- IDE1_SELECT_REG_OFFSET,
- IDE1_STATUS_REG_OFFSET,
- IDE1_CONTROL_REG_OFFSET,
- IDE1_IRQ_REG_OFFSET,
- },
- IDE1_INTERRUPT,
- },
- #endif /* IDE1_BASE_OFFSET */
- #endif /* IDE0_BASE_OFFSET */
- };
- ide_pio_timings_t ide_pio_clocks[6];
- int hold_time[6] = {30, 20, 15, 10, 10, 10 }; /* PIO Mode 5 with IORDY (nonstandard) */
- /*
- * Warning: only 1 (ONE) PCMCIA slot supported here,
- * which must be correctly initialized by the firmware (PPCBoot).
- */
- static int _slot_ = -1; /* will be read from PCMCIA registers */
- /* Make clock cycles and always round up */
- #define PCMCIA_MK_CLKS( t, T ) (( (t) * ((T)/1000000) + 999U ) / 1000U )
- /*
- * IDE stuff.
- */
- static int
- m8xx_ide_default_irq(ide_ioreg_t base)
- {
- #ifdef CONFIG_BLK_DEV_MPC8xx_IDE
- if (base >= MAX_HWIFS)
- return 0;
- printk("[%d] m8xx_ide_default_irq %dn",__LINE__,ioport_dsc[base].irq);
-
- return (ioport_dsc[base].irq);
- #else
- return 9;
- #endif
- }
- static ide_ioreg_t
- m8xx_ide_default_io_base(int index)
- {
- return index;
- }
- #define M8XX_PCMCIA_CD2(slot) (0x10000000 >> (slot << 4))
- #define M8XX_PCMCIA_CD1(slot) (0x08000000 >> (slot << 4))
- /*
- * The TQM850L hardware has two pins swapped! Grrrrgh!
- */
- #ifdef CONFIG_TQM850L
- #define __MY_PCMCIA_GCRX_CXRESET PCMCIA_GCRX_CXOE
- #define __MY_PCMCIA_GCRX_CXOE PCMCIA_GCRX_CXRESET
- #else
- #define __MY_PCMCIA_GCRX_CXRESET PCMCIA_GCRX_CXRESET
- #define __MY_PCMCIA_GCRX_CXOE PCMCIA_GCRX_CXOE
- #endif
- #if defined(CONFIG_BLK_DEV_MPC8xx_IDE) && defined(CONFIG_IDE_8xx_PCCARD)
- #define PCMCIA_SCHLVL IDE0_INTERRUPT /* Status Change Interrupt Level */
- static int pcmcia_schlvl = PCMCIA_SCHLVL;
- #endif
- /*
- * See include/linux/ide.h for definition of hw_regs_t (p, base)
- */
- /*
- * m8xx_ide_init_hwif_ports for a direct IDE interface _using_
- */
- #if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT)
- static void
- m8xx_ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port,
- ide_ioreg_t ctrl_port, int *irq)
- {
- ide_ioreg_t *p = hw->io_ports;
- int i;
- typedef struct {
- ulong br;
- ulong or;
- } pcmcia_win_t;
- volatile pcmcia_win_t *win;
- volatile pcmconf8xx_t *pcmp;
- uint *pgcrx;
- u32 pcmcia_phy_base;
- u32 pcmcia_phy_end;
- static unsigned long pcmcia_base = 0;
- unsigned long base;
- *p = 0;
- if (irq)
- *irq = 0;
- pcmp = (pcmconf8xx_t *)(&(((immap_t *)IMAP_ADDR)->im_pcmcia));
- if (!pcmcia_base) {
- /*
- * Read out PCMCIA registers. Since the reset values
- * are undefined, we sure hope that they have been
- * set up by firmware
- */
- /* Scan all registers for valid settings */
- pcmcia_phy_base = 0xFFFFFFFF;
- pcmcia_phy_end = 0;
- /* br0 is start of brX and orX regs */
- win = (pcmcia_win_t *)
- (&(((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pbr0));
- for (i = 0; i < 8; i++) {
- if (win->or & 1) { /* This bank is marked as valid */
- if (win->br < pcmcia_phy_base) {
- pcmcia_phy_base = win->br;
- }
- if ((win->br + PCMCIA_MEM_SIZE) > pcmcia_phy_end) {
- pcmcia_phy_end = win->br + PCMCIA_MEM_SIZE;
- }
- /* Check which slot that has been defined */
- _slot_ = (win->or >> 2) & 1;
- } /* Valid bank */
- win++;
- } /* for */
- printk ("PCMCIA slot %c: phys mem %08x...%08x (size %08x)n",
- 'A' + _slot_,
- pcmcia_phy_base, pcmcia_phy_end,
- pcmcia_phy_end - pcmcia_phy_base);
- pcmcia_base=(unsigned long)ioremap(pcmcia_phy_base,
- pcmcia_phy_end-pcmcia_phy_base);
- #ifdef DEBUG
- printk ("PCMCIA virt base: %08lxn", pcmcia_base);
- #endif
- /* Compute clock cycles for PIO timings */
- for (i=0; i<6; ++i) {
- bd_t *binfo = (bd_t *)__res;
- hold_time[i] =
- PCMCIA_MK_CLKS (hold_time[i],
- binfo->bi_busfreq);
- ide_pio_clocks[i].setup_time =
- PCMCIA_MK_CLKS (ide_pio_timings[i].setup_time,
- binfo->bi_busfreq);
- ide_pio_clocks[i].active_time =
- PCMCIA_MK_CLKS (ide_pio_timings[i].active_time,
- binfo->bi_busfreq);
- ide_pio_clocks[i].cycle_time =
- PCMCIA_MK_CLKS (ide_pio_timings[i].cycle_time,
- binfo->bi_busfreq);
- #if 0
- printk ("PIO mode %d timings: %d/%d/%d => %d/%d/%dn",
- i,
- ide_pio_clocks[i].setup_time,
- ide_pio_clocks[i].active_time,
- ide_pio_clocks[i].hold_time,
- ide_pio_clocks[i].cycle_time,
- ide_pio_timings[i].setup_time,
- ide_pio_timings[i].active_time,
- ide_pio_timings[i].hold_time,
- ide_pio_timings[i].cycle_time);
- #endif
- }
- }
- if (data_port >= MAX_HWIFS)
- return;
- if (_slot_ == -1) {
- printk ("PCMCIA slot has not been defined! Using A as defaultn");
- _slot_ = 0;
- }
- #ifdef CONFIG_IDE_8xx_PCCARD
- #ifdef DEBUG
- printk ("PIPR = 0x%08X slot %c ==> mask = 0x%Xn",
- pcmp->pcmc_pipr,
- 'A' + _slot_,
- M8XX_PCMCIA_CD1(_slot_) | M8XX_PCMCIA_CD2(_slot_) );
- #endif /* DEBUG */
- if (pcmp->pcmc_pipr & (M8XX_PCMCIA_CD1(_slot_)|M8XX_PCMCIA_CD2(_slot_))) {
- printk ("No card in slot %c: PIPR=%08xn",
- 'A' + _slot_, (u32) pcmp->pcmc_pipr);
- return; /* No card in slot */
- }
- check_ide_device (pcmcia_base);
- #endif /* CONFIG_IDE_8xx_PCCARD */
- base = pcmcia_base + ioport_dsc[data_port].base_off;
- #ifdef DEBUG
- printk ("base: %08x + %08x = %08xn",
- pcmcia_base, ioport_dsc[data_port].base_off, base);
- #endif
- for (i = 0; i < IDE_NR_PORTS; ++i) {
- #ifdef DEBUG
- printk ("port[%d]: %08x + %08x = %08xn",
- i,
- base,
- ioport_dsc[data_port].reg_off[i],
- i, base + ioport_dsc[data_port].reg_off[i]);
- #endif
- *p++ = base + ioport_dsc[data_port].reg_off[i];
- }
- if (irq) {
- #ifdef CONFIG_IDE_8xx_PCCARD
- unsigned int reg;
- *irq = ioport_dsc[data_port].irq;
- if (_slot_)
- pgcrx = &((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pgcrb;
- else
- pgcrx = &((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pgcra;
- reg = *pgcrx;
- reg |= mk_int_int_mask (pcmcia_schlvl) << 24;
- reg |= mk_int_int_mask (pcmcia_schlvl) << 16;
- *pgcrx = reg;
- #else /* direct connected IDE drive, i.e. external IRQ, not the PCMCIA irq */
- *irq = ioport_dsc[data_port].irq;
- #endif /* CONFIG_IDE_8xx_PCCARD */
- }
- /* register routine to tune PIO mode */
- ide_hwifs[data_port].tuneproc = m8xx_ide_tuneproc;
- hw->ack_intr = (ide_ack_intr_t *) ide_interrupt_ack;
- /* Enable Harddisk Interrupt,
- * and make it edge sensitive
- */
- /* (11-18) Set edge detect for irq, no wakeup from low power mode */
- ((immap_t *)IMAP_ADDR)->im_siu_conf.sc_siel |=
- (0x80000000 >> ioport_dsc[data_port].irq);
- #ifdef CONFIG_IDE_8xx_PCCARD
- /* Make sure we dont get garbage irq */
- ((immap_t *) IMAP_ADDR)->im_pcmcia.pcmc_pscr = 0xFFFF;
- /* Enable falling edge irq */
- pcmp->pcmc_per = 0x100000 >> (16 * _slot_);
- #endif /* CONFIG_IDE_8xx_PCCARD */
- } /* m8xx_ide_init_hwif_ports() using 8xx internal PCMCIA interface */
- #endif /* CONFIG_IDE_8xx_PCCARD || CONFIG_IDE_8xx_DIRECT */
- /*
- * m8xx_ide_init_hwif_ports for a direct IDE interface _not_ using
- * MPC8xx's internal PCMCIA interface
- */
- #if defined(CONFIG_IDE_EXT_DIRECT)
- void m8xx_ide_init_hwif_ports (hw_regs_t *hw,
- ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
- {
- ide_ioreg_t *p = hw->io_ports;
- int i;
- u32 ide_phy_base;
- u32 ide_phy_end;
- static unsigned long ide_base = 0;
- unsigned long base;
- *p = 0;
- if (irq)
- *irq = 0;
- if (!ide_base) {
- /* TODO:
- * - add code to read ORx, BRx
- */
- ide_phy_base = CFG_ATA_BASE_ADDR;
- ide_phy_end = CFG_ATA_BASE_ADDR + 0x200;
- printk ("IDE phys mem : %08x...%08x (size %08x)n",
- ide_phy_base, ide_phy_end,
- ide_phy_end - ide_phy_base);
-
- ide_base=(unsigned long)ioremap(ide_phy_base,
- ide_phy_end-ide_phy_base);
- #ifdef DEBUG
- printk ("IDE virt base: %08lxn", ide_base);
- #endif
- }
- if (data_port >= MAX_HWIFS)
- return;
- base = ide_base + ioport_dsc[data_port].base_off;
- #ifdef DEBUG
- printk ("base: %08x + %08x = %08xn",
- ide_base, ioport_dsc[data_port].base_off, base);
- #endif
- for (i = 0; i < IDE_NR_PORTS; ++i) {
- #ifdef DEBUG
- printk ("port[%d]: %08x + %08x = %08xn",
- i,
- base,
- ioport_dsc[data_port].reg_off[i],
- i, base + ioport_dsc[data_port].reg_off[i]);
- #endif
- *p++ = base + ioport_dsc[data_port].reg_off[i];
- }
- if (irq) {
- /* direct connected IDE drive, i.e. external IRQ */
- *irq = ioport_dsc[data_port].irq;
- }
- /* register routine to tune PIO mode */
- ide_hwifs[data_port].tuneproc = m8xx_ide_tuneproc;
- hw->ack_intr = (ide_ack_intr_t *) ide_interrupt_ack;
- /* Enable Harddisk Interrupt,
- * and make it edge sensitive
- */
- /* (11-18) Set edge detect for irq, no wakeup from low power mode */
- ((immap_t *) IMAP_ADDR)->im_siu_conf.sc_siel |=
- (0x80000000 >> ioport_dsc[data_port].irq);
- } /* m8xx_ide_init_hwif_ports() for CONFIG_IDE_8xx_DIRECT */
- #endif /* CONFIG_IDE_8xx_DIRECT */
- /* -------------------------------------------------------------------- */
- /* PCMCIA Timing */
- #ifndef PCMCIA_SHT
- #define PCMCIA_SHT(t) ((t & 0x0F)<<16) /* Strobe Hold Time */
- #define PCMCIA_SST(t) ((t & 0x0F)<<12) /* Strobe Setup Time */
- #define PCMCIA_SL(t) ((t==32) ? 0 : ((t & 0x1F)<<7)) /* Strobe Length */
- #endif
- /* Calculate PIO timings */
- static void
- m8xx_ide_tuneproc(ide_drive_t *drive, byte pio)
- {
- ide_pio_data_t d;
- #if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT)
- volatile pcmconf8xx_t *pcmp;
- ulong timing, mask, reg;
- #endif
- pio = ide_get_best_pio_mode(drive, pio, 4, &d);
- #if 1
- printk("%s[%d] %s: best PIO mode: %dn",
- __FILE__,__LINE__,__FUNCTION__, pio);
- #endif
- #if defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_DIRECT)
- pcmp = (pcmconf8xx_t *)(&(((immap_t *)IMAP_ADDR)->im_pcmcia));
- mask = ~(PCMCIA_SHT(0xFF) | PCMCIA_SST(0xFF) | PCMCIA_SL(0xFF));
- timing = PCMCIA_SHT(hold_time[pio] )
- | PCMCIA_SST(ide_pio_clocks[pio].setup_time )
- | PCMCIA_SL (ide_pio_clocks[pio].active_time)
- ;
- #if 1
- printk ("Setting timing bits 0x%08lx in PCMCIA controllern", timing);
- #endif
- if ((reg = pcmp->pcmc_por0 & mask) != 0)
- pcmp->pcmc_por0 = reg | timing;
- if ((reg = pcmp->pcmc_por1 & mask) != 0)
- pcmp->pcmc_por1 = reg | timing;
- if ((reg = pcmp->pcmc_por2 & mask) != 0)
- pcmp->pcmc_por2 = reg | timing;
- if ((reg = pcmp->pcmc_por3 & mask) != 0)
- pcmp->pcmc_por3 = reg | timing;
- if ((reg = pcmp->pcmc_por4 & mask) != 0)
- pcmp->pcmc_por4 = reg | timing;
- if ((reg = pcmp->pcmc_por5 & mask) != 0)
- pcmp->pcmc_por5 = reg | timing;
- if ((reg = pcmp->pcmc_por6 & mask) != 0)
- pcmp->pcmc_por6 = reg | timing;
- if ((reg = pcmp->pcmc_por7 & mask) != 0)
- pcmp->pcmc_por7 = reg | timing;
- #elif defined(CONFIG_IDE_EXT_DIRECT)
- printk("%s[%d] %s: not implemented yet!n",
- __FILE__,__LINE__,__FUNCTION__);
- #endif /* defined(CONFIG_IDE_8xx_PCCARD) || defined(CONFIG_IDE_8xx_PCMCIA */
- }
- static void
- ide_interrupt_ack (void *dev)
- {
- #ifdef CONFIG_IDE_8xx_PCCARD
- u_int pscr, pipr;
- #if (PCMCIA_SOCKETS_NO == 2)
- u_int _slot_;
- #endif
- /* get interrupt sources */
- pscr = ((volatile immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr;
- pipr = ((volatile immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pipr;
- /*
- * report only if both card detect signals are the same
- * not too nice done,
- * we depend on that CD2 is the bit to the left of CD1...
- */
- if(_slot_==-1){
- printk("PCMCIA slot has not been defined! Using A as defaultn");
- _slot_=0;
- }
- if(((pipr & M8XX_PCMCIA_CD2(_slot_)) >> 1) ^
- (pipr & M8XX_PCMCIA_CD1(_slot_)) ) {
- printk ("card detect interruptn");
- }
- /* clear the interrupt sources */
- ((immap_t *)IMAP_ADDR)->im_pcmcia.pcmc_pscr = pscr;
- #else /* ! CONFIG_IDE_8xx_PCCARD */
- /*
- * Only CONFIG_IDE_8xx_PCCARD is using the interrupt of the
- * MPC8xx's PCMCIA controller, so there is nothing to be done here
- * for CONFIG_IDE_8xx_DIRECT and CONFIG_IDE_EXT_DIRECT.
- * The interrupt is handled somewhere else. -- Steven
- */
- #endif /* CONFIG_IDE_8xx_PCCARD */
- }
- /*
- * CIS Tupel codes
- */
- #define CISTPL_NULL 0x00
- #define CISTPL_DEVICE 0x01
- #define CISTPL_LONGLINK_CB 0x02
- #define CISTPL_INDIRECT 0x03
- #define CISTPL_CONFIG_CB 0x04
- #define CISTPL_CFTABLE_ENTRY_CB 0x05
- #define CISTPL_LONGLINK_MFC 0x06
- #define CISTPL_BAR 0x07
- #define CISTPL_PWR_MGMNT 0x08
- #define CISTPL_EXTDEVICE 0x09
- #define CISTPL_CHECKSUM 0x10
- #define CISTPL_LONGLINK_A 0x11
- #define CISTPL_LONGLINK_C 0x12
- #define CISTPL_LINKTARGET 0x13
- #define CISTPL_NO_LINK 0x14
- #define CISTPL_VERS_1 0x15
- #define CISTPL_ALTSTR 0x16
- #define CISTPL_DEVICE_A 0x17
- #define CISTPL_JEDEC_C 0x18
- #define CISTPL_JEDEC_A 0x19
- #define CISTPL_CONFIG 0x1a
- #define CISTPL_CFTABLE_ENTRY 0x1b
- #define CISTPL_DEVICE_OC 0x1c
- #define CISTPL_DEVICE_OA 0x1d
- #define CISTPL_DEVICE_GEO 0x1e
- #define CISTPL_DEVICE_GEO_A 0x1f
- #define CISTPL_MANFID 0x20
- #define CISTPL_FUNCID 0x21
- #define CISTPL_FUNCE 0x22
- #define CISTPL_SWIL 0x23
- #define CISTPL_END 0xff
- /*
- * CIS Function ID codes
- */
- #define CISTPL_FUNCID_MULTI 0x00
- #define CISTPL_FUNCID_MEMORY 0x01
- #define CISTPL_FUNCID_SERIAL 0x02
- #define CISTPL_FUNCID_PARALLEL 0x03
- #define CISTPL_FUNCID_FIXED 0x04
- #define CISTPL_FUNCID_VIDEO 0x05
- #define CISTPL_FUNCID_NETWORK 0x06
- #define CISTPL_FUNCID_AIMS 0x07
- #define CISTPL_FUNCID_SCSI 0x08
- /*
- * Fixed Disk FUNCE codes
- */
- #define CISTPL_IDE_INTERFACE 0x01
- #define CISTPL_FUNCE_IDE_IFACE 0x01
- #define CISTPL_FUNCE_IDE_MASTER 0x02
- #define CISTPL_FUNCE_IDE_SLAVE 0x03
- /* First feature byte */
- #define CISTPL_IDE_SILICON 0x04
- #define CISTPL_IDE_UNIQUE 0x08
- #define CISTPL_IDE_DUAL 0x10
- /* Second feature byte */
- #define CISTPL_IDE_HAS_SLEEP 0x01
- #define CISTPL_IDE_HAS_STANDBY 0x02
- #define CISTPL_IDE_HAS_IDLE 0x04
- #define CISTPL_IDE_LOW_POWER 0x08
- #define CISTPL_IDE_REG_INHIBIT 0x10
- #define CISTPL_IDE_HAS_INDEX 0x20
- #define CISTPL_IDE_IOIS16 0x40
- /* -------------------------------------------------------------------- */
- #define MAX_TUPEL_SZ 512
- #define MAX_FEATURES 4
- static int check_ide_device (unsigned long base)
- {
- volatile unsigned char *ident = NULL;
- volatile unsigned char *feature_p[MAX_FEATURES];
- volatile unsigned char *p, *start;
- int n_features = 0;
- unsigned char func_id = ~0;
- unsigned char code, len;
- unsigned short config_base = 0;
- int found = 0;
- int i;
- #ifdef DEBUG
- printk ("PCMCIA MEM: %08lXn", base);
- #endif
- start = p = (volatile unsigned char *) base;
- while ((p - start) < MAX_TUPEL_SZ) {
- code = *p; p += 2;
- if (code == 0xFF) { /* End of chain */
- break;
- }
- len = *p; p += 2;
- #ifdef DEBUG_PCMCIA
- { volatile unsigned char *q = p;
- printk ("nTuple code %02x length %dntData:",
- code, len);
- for (i = 0; i < len; ++i) {
- printk (" %02x", *q);
- q+= 2;
- }
- }
- #endif /* DEBUG_PCMCIA */
- switch (code) {
- case CISTPL_VERS_1:
- ident = p + 4;
- break;
- case CISTPL_FUNCID:
- func_id = *p;
- break;
- case CISTPL_FUNCE:
- if (n_features < MAX_FEATURES)
- feature_p[n_features++] = p;
- break;
- case CISTPL_CONFIG:
- config_base = (*(p+6) << 8) + (*(p+4));
- default:
- break;
- }
- p += 2 * len;
- }
- found = identify (ident);
- if (func_id != ((unsigned char)~0)) {
- print_funcid (func_id);
- if (func_id == CISTPL_FUNCID_FIXED)
- found = 1;
- else
- return (1); /* no disk drive */
- }
- for (i=0; i<n_features; ++i) {
- print_fixed (feature_p[i]);
- }
- if (!found) {
- printk ("unknown card typen");
- return (1);
- }
- /* set level mode irq and I/O mapped device in config reg*/
- *((unsigned char *)(base + config_base)) = 0x41;
- return (0);
- }
- /* ------------------------------------------------------------------------- */
- static void print_funcid (int func)
- {
- switch (func) {
- case CISTPL_FUNCID_MULTI:
- printk (" Multi-Function");
- break;
- case CISTPL_FUNCID_MEMORY:
- printk (" Memory");
- break;
- case CISTPL_FUNCID_SERIAL:
- printk (" Serial Port");
- break;
- case CISTPL_FUNCID_PARALLEL:
- printk (" Parallel Port");
- break;
- case CISTPL_FUNCID_FIXED:
- printk (" Fixed Disk");
- break;
- case CISTPL_FUNCID_VIDEO:
- printk (" Video Adapter");
- break;
- case CISTPL_FUNCID_NETWORK:
- printk (" Network Adapter");
- break;
- case CISTPL_FUNCID_AIMS:
- printk (" AIMS Card");
- break;
- case CISTPL_FUNCID_SCSI:
- printk (" SCSI Adapter");
- break;
- default:
- printk (" Unknown");
- break;
- }
- printk (" Cardn");
- }
- /* ------------------------------------------------------------------------- */
- static void print_fixed (volatile unsigned char *p)
- {
- if (p == NULL)
- return;
- switch (*p) {
- case CISTPL_FUNCE_IDE_IFACE:
- { unsigned char iface = *(p+2);
- printk ((iface == CISTPL_IDE_INTERFACE) ? " IDE" : " unknown");
- printk (" interface ");
- break;
- }
- case CISTPL_FUNCE_IDE_MASTER:
- case CISTPL_FUNCE_IDE_SLAVE:
- { unsigned char f1 = *(p+2);
- unsigned char f2 = *(p+4);
- printk ((f1 & CISTPL_IDE_SILICON) ? " [silicon]" : " [rotating]");
- if (f1 & CISTPL_IDE_UNIQUE)
- printk (" [unique]");
- printk ((f1 & CISTPL_IDE_DUAL) ? " [dual]" : " [single]");
- if (f2 & CISTPL_IDE_HAS_SLEEP)
- printk (" [sleep]");
- if (f2 & CISTPL_IDE_HAS_STANDBY)
- printk (" [standby]");
- if (f2 & CISTPL_IDE_HAS_IDLE)
- printk (" [idle]");
- if (f2 & CISTPL_IDE_LOW_POWER)
- printk (" [low power]");
- if (f2 & CISTPL_IDE_REG_INHIBIT)
- printk (" [reg inhibit]");
- if (f2 & CISTPL_IDE_HAS_INDEX)
- printk (" [index]");
- if (f2 & CISTPL_IDE_IOIS16)
- printk (" [IOis16]");
- break;
- }
- }
- printk ("n");
- }
- /* ------------------------------------------------------------------------- */
- #define MAX_IDENT_CHARS 64
- #define MAX_IDENT_FIELDS 4
- static unsigned char *known_cards[] = {
- "ARGOSY PnPIDE D5",
- NULL
- };
- static int identify (volatile unsigned char *p)
- {
- unsigned char id_str[MAX_IDENT_CHARS];
- unsigned char data;
- unsigned char *t;
- unsigned char **card;
- int i, done;
- if (p == NULL)
- return (0); /* Don't know */
- t = id_str;
- done =0;
- for (i=0; i<=4 && !done; ++i, p+=2) {
- while ((data = *p) != '') {
- if (data == 0xFF) {
- done = 1;
- break;
- }
- *t++ = data;
- if (t == &id_str[MAX_IDENT_CHARS-1]) {
- done = 1;
- break;
- }
- p += 2;
- }
- if (!done)
- *t++ = ' ';
- }
- *t = '';
- while (--t > id_str) {
- if (*t == ' ')
- *t = '';
- else
- break;
- }
- printk ("Card ID: %sn", id_str);
- for (card=known_cards; *card; ++card) {
- if (strcmp(*card, id_str) == 0) { /* found! */
- return (1);
- }
- }
- return (0); /* don't know */
- }
- void m8xx_ide_init(void)
- {
- ppc_ide_md.default_irq = m8xx_ide_default_irq;
- ppc_ide_md.default_io_base = m8xx_ide_default_io_base;
- ppc_ide_md.ide_init_hwif = m8xx_ide_init_hwif_ports;
- }