| /* |
| * linux/arch/m68k/atari/config.c |
| * |
| * Copyright (C) 1994 Bjoern Brauel |
| * |
| * 5/2/94 Roman Hodek: |
| * Added setting of time_adj to get a better clock. |
| * |
| * 5/14/94 Roman Hodek: |
| * gettod() for TT |
| * |
| * 5/15/94 Roman Hodek: |
| * hard_reset_now() for Atari (and others?) |
| * |
| * 94/12/30 Andreas Schwab: |
| * atari_sched_init fixed to get precise clock. |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive |
| * for more details. |
| */ |
| |
| /* |
| * Miscellaneous atari stuff |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/types.h> |
| #include <linux/mm.h> |
| #include <linux/console.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/ioport.h> |
| #include <linux/vt_kern.h> |
| |
| #include <asm/bootinfo.h> |
| #include <asm/setup.h> |
| #include <asm/atarihw.h> |
| #include <asm/atariints.h> |
| #include <asm/atari_stram.h> |
| #include <asm/system.h> |
| #include <asm/machdep.h> |
| #include <asm/hwtest.h> |
| #include <asm/io.h> |
| |
| u_long atari_mch_cookie; |
| u_long atari_mch_type; |
| struct atari_hw_present atari_hw_present; |
| u_long atari_switches; |
| int atari_dont_touch_floppy_select; |
| int atari_rtc_year_offset; |
| |
| /* local function prototypes */ |
| static void atari_reset( void ); |
| static void atari_get_model(char *model); |
| static int atari_get_hardware_list(char *buffer); |
| |
| /* atari specific irq functions */ |
| extern void atari_init_IRQ (void); |
| extern int atari_request_irq (unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), |
| unsigned long flags, const char *devname, void *dev_id); |
| extern void atari_free_irq (unsigned int irq, void *dev_id); |
| extern void atari_enable_irq (unsigned int); |
| extern void atari_disable_irq (unsigned int); |
| extern int show_atari_interrupts (struct seq_file *, void *); |
| extern void atari_mksound( unsigned int count, unsigned int ticks ); |
| #ifdef CONFIG_HEARTBEAT |
| static void atari_heartbeat( int on ); |
| #endif |
| |
| /* atari specific timer functions (in time.c) */ |
| extern void atari_sched_init(irqreturn_t (*)(int, void *, struct pt_regs *)); |
| extern unsigned long atari_gettimeoffset (void); |
| extern int atari_mste_hwclk (int, struct rtc_time *); |
| extern int atari_tt_hwclk (int, struct rtc_time *); |
| extern int atari_mste_set_clock_mmss (unsigned long); |
| extern int atari_tt_set_clock_mmss (unsigned long); |
| |
| /* atari specific debug functions (in debug.c) */ |
| extern void atari_debug_init(void); |
| |
| |
| /* I've moved hwreg_present() and hwreg_present_bywrite() out into |
| * mm/hwtest.c, to avoid having multiple copies of the same routine |
| * in the kernel [I wanted them in hp300 and they were already used |
| * in the nubus code. NB: I don't have an Atari so this might (just |
| * conceivably) break something. |
| * I've preserved the #if 0 version of hwreg_present_bywrite() here |
| * for posterity. |
| * -- Peter Maydell <pmaydell@chiark.greenend.org.uk>, 05/1998 |
| */ |
| |
| #if 0 |
| static int __init |
| hwreg_present_bywrite(volatile void *regp, unsigned char val) |
| { |
| int ret; |
| long save_sp, save_vbr; |
| static long tmp_vectors[3] = { [2] = (long)&&after_test }; |
| |
| __asm__ __volatile__ |
| ( "movec %/vbr,%2\n\t" /* save vbr value */ |
| "movec %4,%/vbr\n\t" /* set up temporary vectors */ |
| "movel %/sp,%1\n\t" /* save sp */ |
| "moveq #0,%0\n\t" /* assume not present */ |
| "moveb %5,%3@\n\t" /* write the hardware reg */ |
| "cmpb %3@,%5\n\t" /* compare it */ |
| "seq %0" /* comes here only if reg */ |
| /* is present */ |
| : "=d&" (ret), "=r&" (save_sp), "=r&" (save_vbr) |
| : "a" (regp), "r" (tmp_vectors), "d" (val) |
| ); |
| after_test: |
| __asm__ __volatile__ |
| ( "movel %0,%/sp\n\t" /* restore sp */ |
| "movec %1,%/vbr" /* restore vbr */ |
| : : "r" (save_sp), "r" (save_vbr) : "sp" |
| ); |
| |
| return( ret ); |
| } |
| #endif |
| |
| |
| /* ++roman: This is a more elaborate test for an SCC chip, since the plain |
| * Medusa board generates DTACK at the SCC's standard addresses, but a SCC |
| * board in the Medusa is possible. Also, the addresses where the ST_ESCC |
| * resides generate DTACK without the chip, too. |
| * The method is to write values into the interrupt vector register, that |
| * should be readable without trouble (from channel A!). |
| */ |
| |
| static int __init scc_test( volatile char *ctla ) |
| { |
| if (!hwreg_present( ctla )) |
| return( 0 ); |
| MFPDELAY(); |
| |
| *ctla = 2; MFPDELAY(); |
| *ctla = 0x40; MFPDELAY(); |
| |
| *ctla = 2; MFPDELAY(); |
| if (*ctla != 0x40) return( 0 ); |
| MFPDELAY(); |
| |
| *ctla = 2; MFPDELAY(); |
| *ctla = 0x60; MFPDELAY(); |
| |
| *ctla = 2; MFPDELAY(); |
| if (*ctla != 0x60) return( 0 ); |
| |
| return( 1 ); |
| } |
| |
| |
| /* |
| * Parse an Atari-specific record in the bootinfo |
| */ |
| |
| int __init atari_parse_bootinfo(const struct bi_record *record) |
| { |
| int unknown = 0; |
| const u_long *data = record->data; |
| |
| switch (record->tag) { |
| case BI_ATARI_MCH_COOKIE: |
| atari_mch_cookie = *data; |
| break; |
| case BI_ATARI_MCH_TYPE: |
| atari_mch_type = *data; |
| break; |
| default: |
| unknown = 1; |
| } |
| return(unknown); |
| } |
| |
| |
| /* Parse the Atari-specific switches= option. */ |
| void __init atari_switches_setup( const char *str, unsigned len ) |
| { |
| char switches[len+1]; |
| char *p; |
| int ovsc_shift; |
| char *args = switches; |
| |
| /* copy string to local array, strsep works destructively... */ |
| strlcpy( switches, str, sizeof(switches) ); |
| atari_switches = 0; |
| |
| /* parse the options */ |
| while ((p = strsep(&args, ",")) != NULL) { |
| if (!*p) continue; |
| ovsc_shift = 0; |
| if (strncmp( p, "ov_", 3 ) == 0) { |
| p += 3; |
| ovsc_shift = ATARI_SWITCH_OVSC_SHIFT; |
| } |
| |
| if (strcmp( p, "ikbd" ) == 0) { |
| /* RTS line of IKBD ACIA */ |
| atari_switches |= ATARI_SWITCH_IKBD << ovsc_shift; |
| } |
| else if (strcmp( p, "midi" ) == 0) { |
| /* RTS line of MIDI ACIA */ |
| atari_switches |= ATARI_SWITCH_MIDI << ovsc_shift; |
| } |
| else if (strcmp( p, "snd6" ) == 0) { |
| atari_switches |= ATARI_SWITCH_SND6 << ovsc_shift; |
| } |
| else if (strcmp( p, "snd7" ) == 0) { |
| atari_switches |= ATARI_SWITCH_SND7 << ovsc_shift; |
| } |
| } |
| } |
| |
| |
| /* |
| * Setup the Atari configuration info |
| */ |
| |
| void __init config_atari(void) |
| { |
| unsigned short tos_version; |
| |
| memset(&atari_hw_present, 0, sizeof(atari_hw_present)); |
| |
| atari_debug_init(); |
| |
| ioport_resource.end = 0xFFFFFFFF; /* Change size of I/O space from 64KB |
| to 4GB. */ |
| |
| mach_sched_init = atari_sched_init; |
| mach_init_IRQ = atari_init_IRQ; |
| mach_request_irq = atari_request_irq; |
| mach_free_irq = atari_free_irq; |
| enable_irq = atari_enable_irq; |
| disable_irq = atari_disable_irq; |
| mach_get_model = atari_get_model; |
| mach_get_hardware_list = atari_get_hardware_list; |
| mach_get_irq_list = show_atari_interrupts; |
| mach_gettimeoffset = atari_gettimeoffset; |
| mach_reset = atari_reset; |
| mach_max_dma_address = 0xffffff; |
| #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE) |
| mach_beep = atari_mksound; |
| #endif |
| #ifdef CONFIG_HEARTBEAT |
| mach_heartbeat = atari_heartbeat; |
| #endif |
| |
| /* Set switches as requested by the user */ |
| if (atari_switches & ATARI_SWITCH_IKBD) |
| acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID; |
| if (atari_switches & ATARI_SWITCH_MIDI) |
| acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID; |
| if (atari_switches & (ATARI_SWITCH_SND6|ATARI_SWITCH_SND7)) { |
| sound_ym.rd_data_reg_sel = 14; |
| sound_ym.wd_data = sound_ym.rd_data_reg_sel | |
| ((atari_switches&ATARI_SWITCH_SND6) ? 0x40 : 0) | |
| ((atari_switches&ATARI_SWITCH_SND7) ? 0x80 : 0); |
| } |
| |
| /* ++bjoern: |
| * Determine hardware present |
| */ |
| |
| printk( "Atari hardware found: " ); |
| if (MACH_IS_MEDUSA || MACH_IS_HADES) { |
| /* There's no Atari video hardware on the Medusa, but all the |
| * addresses below generate a DTACK so no bus error occurs! */ |
| } |
| else if (hwreg_present( f030_xreg )) { |
| ATARIHW_SET(VIDEL_SHIFTER); |
| printk( "VIDEL " ); |
| /* This is a temporary hack: If there is Falcon video |
| * hardware, we assume that the ST-DMA serves SCSI instead of |
| * ACSI. In the future, there should be a better method for |
| * this... |
| */ |
| ATARIHW_SET(ST_SCSI); |
| printk( "STDMA-SCSI " ); |
| } |
| else if (hwreg_present( tt_palette )) { |
| ATARIHW_SET(TT_SHIFTER); |
| printk( "TT_SHIFTER " ); |
| } |
| else if (hwreg_present( &shifter.bas_hi )) { |
| if (hwreg_present( &shifter.bas_lo ) && |
| (shifter.bas_lo = 0x0aau, shifter.bas_lo == 0x0aau)) { |
| ATARIHW_SET(EXTD_SHIFTER); |
| printk( "EXTD_SHIFTER " ); |
| } |
| else { |
| ATARIHW_SET(STND_SHIFTER); |
| printk( "STND_SHIFTER " ); |
| } |
| } |
| if (hwreg_present( &mfp.par_dt_reg )) { |
| ATARIHW_SET(ST_MFP); |
| printk( "ST_MFP " ); |
| } |
| if (hwreg_present( &tt_mfp.par_dt_reg )) { |
| ATARIHW_SET(TT_MFP); |
| printk( "TT_MFP " ); |
| } |
| if (hwreg_present( &tt_scsi_dma.dma_addr_hi )) { |
| ATARIHW_SET(SCSI_DMA); |
| printk( "TT_SCSI_DMA " ); |
| } |
| if (!MACH_IS_HADES && hwreg_present( &st_dma.dma_hi )) { |
| ATARIHW_SET(STND_DMA); |
| printk( "STND_DMA " ); |
| } |
| if (MACH_IS_MEDUSA || /* The ST-DMA address registers aren't readable |
| * on all Medusas, so the test below may fail */ |
| (hwreg_present( &st_dma.dma_vhi ) && |
| (st_dma.dma_vhi = 0x55) && (st_dma.dma_hi = 0xaa) && |
| st_dma.dma_vhi == 0x55 && st_dma.dma_hi == 0xaa && |
| (st_dma.dma_vhi = 0xaa) && (st_dma.dma_hi = 0x55) && |
| st_dma.dma_vhi == 0xaa && st_dma.dma_hi == 0x55)) { |
| ATARIHW_SET(EXTD_DMA); |
| printk( "EXTD_DMA " ); |
| } |
| if (hwreg_present( &tt_scsi.scsi_data )) { |
| ATARIHW_SET(TT_SCSI); |
| printk( "TT_SCSI " ); |
| } |
| if (hwreg_present( &sound_ym.rd_data_reg_sel )) { |
| ATARIHW_SET(YM_2149); |
| printk( "YM2149 " ); |
| } |
| if (!MACH_IS_MEDUSA && !MACH_IS_HADES && |
| hwreg_present( &tt_dmasnd.ctrl )) { |
| ATARIHW_SET(PCM_8BIT); |
| printk( "PCM " ); |
| } |
| if (!MACH_IS_HADES && hwreg_present( &falcon_codec.unused5 )) { |
| ATARIHW_SET(CODEC); |
| printk( "CODEC " ); |
| } |
| if (hwreg_present( &dsp56k_host_interface.icr )) { |
| ATARIHW_SET(DSP56K); |
| printk( "DSP56K " ); |
| } |
| if (hwreg_present( &tt_scc_dma.dma_ctrl ) && |
| #if 0 |
| /* This test sucks! Who knows some better? */ |
| (tt_scc_dma.dma_ctrl = 0x01, (tt_scc_dma.dma_ctrl & 1) == 1) && |
| (tt_scc_dma.dma_ctrl = 0x00, (tt_scc_dma.dma_ctrl & 1) == 0) |
| #else |
| !MACH_IS_MEDUSA && !MACH_IS_HADES |
| #endif |
| ) { |
| ATARIHW_SET(SCC_DMA); |
| printk( "SCC_DMA " ); |
| } |
| if (scc_test( &scc.cha_a_ctrl )) { |
| ATARIHW_SET(SCC); |
| printk( "SCC " ); |
| } |
| if (scc_test( &st_escc.cha_b_ctrl )) { |
| ATARIHW_SET( ST_ESCC ); |
| printk( "ST_ESCC " ); |
| } |
| if (MACH_IS_HADES) |
| { |
| ATARIHW_SET( VME ); |
| printk( "VME " ); |
| } |
| else if (hwreg_present( &tt_scu.sys_mask )) { |
| ATARIHW_SET(SCU); |
| /* Assume a VME bus if there's a SCU */ |
| ATARIHW_SET( VME ); |
| printk( "VME SCU " ); |
| } |
| if (hwreg_present( (void *)(0xffff9210) )) { |
| ATARIHW_SET(ANALOG_JOY); |
| printk( "ANALOG_JOY " ); |
| } |
| if (!MACH_IS_HADES && hwreg_present( blitter.halftone )) { |
| ATARIHW_SET(BLITTER); |
| printk( "BLITTER " ); |
| } |
| if (hwreg_present((void *)0xfff00039)) { |
| ATARIHW_SET(IDE); |
| printk( "IDE " ); |
| } |
| #if 1 /* This maybe wrong */ |
| if (!MACH_IS_MEDUSA && !MACH_IS_HADES && |
| hwreg_present( &tt_microwire.data ) && |
| hwreg_present( &tt_microwire.mask ) && |
| (tt_microwire.mask = 0x7ff, |
| udelay(1), |
| tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR, |
| udelay(1), |
| tt_microwire.data != 0)) { |
| ATARIHW_SET(MICROWIRE); |
| while (tt_microwire.mask != 0x7ff) ; |
| printk( "MICROWIRE " ); |
| } |
| #endif |
| if (hwreg_present( &tt_rtc.regsel )) { |
| ATARIHW_SET(TT_CLK); |
| printk( "TT_CLK " ); |
| mach_hwclk = atari_tt_hwclk; |
| mach_set_clock_mmss = atari_tt_set_clock_mmss; |
| } |
| if (!MACH_IS_HADES && hwreg_present( &mste_rtc.sec_ones)) { |
| ATARIHW_SET(MSTE_CLK); |
| printk( "MSTE_CLK "); |
| mach_hwclk = atari_mste_hwclk; |
| mach_set_clock_mmss = atari_mste_set_clock_mmss; |
| } |
| if (!MACH_IS_MEDUSA && !MACH_IS_HADES && |
| hwreg_present( &dma_wd.fdc_speed ) && |
| hwreg_write( &dma_wd.fdc_speed, 0 )) { |
| ATARIHW_SET(FDCSPEED); |
| printk( "FDC_SPEED "); |
| } |
| if (!MACH_IS_HADES && !ATARIHW_PRESENT(ST_SCSI)) { |
| ATARIHW_SET(ACSI); |
| printk( "ACSI " ); |
| } |
| printk("\n"); |
| |
| if (CPU_IS_040_OR_060) |
| /* Now it seems to be safe to turn of the tt0 transparent |
| * translation (the one that must not be turned off in |
| * head.S...) |
| */ |
| __asm__ volatile ("moveq #0,%/d0\n\t" |
| ".chip 68040\n\t" |
| "movec %%d0,%%itt0\n\t" |
| "movec %%d0,%%dtt0\n\t" |
| ".chip 68k" |
| : /* no outputs */ |
| : /* no inputs */ |
| : "d0"); |
| |
| /* allocator for memory that must reside in st-ram */ |
| atari_stram_init (); |
| |
| /* Set up a mapping for the VMEbus address region: |
| * |
| * VME is either at phys. 0xfexxxxxx (TT) or 0xa00000..0xdfffff |
| * (MegaSTE) In both cases, the whole 16 MB chunk is mapped at |
| * 0xfe000000 virt., because this can be done with a single |
| * transparent translation. On the 68040, lots of often unused |
| * page tables would be needed otherwise. On a MegaSTE or similar, |
| * the highest byte is stripped off by hardware due to the 24 bit |
| * design of the bus. |
| */ |
| |
| if (CPU_IS_020_OR_030) { |
| unsigned long tt1_val; |
| tt1_val = 0xfe008543; /* Translate 0xfexxxxxx, enable, cache |
| * inhibit, read and write, FDC mask = 3, |
| * FDC val = 4 -> Supervisor only */ |
| __asm__ __volatile__ ( ".chip 68030\n\t" |
| "pmove %0@,%/tt1\n\t" |
| ".chip 68k" |
| : : "a" (&tt1_val) ); |
| } |
| else { |
| __asm__ __volatile__ |
| ( "movel %0,%/d0\n\t" |
| ".chip 68040\n\t" |
| "movec %%d0,%%itt1\n\t" |
| "movec %%d0,%%dtt1\n\t" |
| ".chip 68k" |
| : |
| : "g" (0xfe00a040) /* Translate 0xfexxxxxx, enable, |
| * supervisor only, non-cacheable/ |
| * serialized, writable */ |
| : "d0" ); |
| |
| } |
| |
| /* Fetch tos version at Physical 2 */ |
| /* We my not be able to access this address if the kernel is |
| loaded to st ram, since the first page is unmapped. On the |
| Medusa this is always the case and there is nothing we can do |
| about this, so we just assume the smaller offset. For the TT |
| we use the fact that in head.S we have set up a mapping |
| 0xFFxxxxxx -> 0x00xxxxxx, so that the first 16MB is accessible |
| in the last 16MB of the address space. */ |
| tos_version = (MACH_IS_MEDUSA || MACH_IS_HADES) ? |
| 0xfff : *(unsigned short *)0xff000002; |
| atari_rtc_year_offset = (tos_version < 0x306) ? 70 : 68; |
| } |
| |
| #ifdef CONFIG_HEARTBEAT |
| static void atari_heartbeat( int on ) |
| { |
| unsigned char tmp; |
| unsigned long flags; |
| |
| if (atari_dont_touch_floppy_select) |
| return; |
| |
| local_irq_save(flags); |
| sound_ym.rd_data_reg_sel = 14; /* Select PSG Port A */ |
| tmp = sound_ym.rd_data_reg_sel; |
| sound_ym.wd_data = on ? (tmp & ~0x02) : (tmp | 0x02); |
| local_irq_restore(flags); |
| } |
| #endif |
| |
| /* ++roman: |
| * |
| * This function does a reset on machines that lack the ability to |
| * assert the processor's _RESET signal somehow via hardware. It is |
| * based on the fact that you can find the initial SP and PC values |
| * after a reset at physical addresses 0 and 4. This works pretty well |
| * for Atari machines, since the lowest 8 bytes of physical memory are |
| * really ROM (mapped by hardware). For other 680x0 machines: don't |
| * know if it works... |
| * |
| * To get the values at addresses 0 and 4, the MMU better is turned |
| * off first. After that, we have to jump into physical address space |
| * (the PC before the pmove statement points to the virtual address of |
| * the code). Getting that physical address is not hard, but the code |
| * becomes a bit complex since I've tried to ensure that the jump |
| * statement after the pmove is in the cache already (otherwise the |
| * processor can't fetch it!). For that, the code first jumps to the |
| * jump statement with the (virtual) address of the pmove section in |
| * an address register . The jump statement is surely in the cache |
| * now. After that, that physical address of the reset code is loaded |
| * into the same address register, pmove is done and the same jump |
| * statements goes to the reset code. Since there are not many |
| * statements between the two jumps, I hope it stays in the cache. |
| * |
| * The C code makes heavy use of the GCC features that you can get the |
| * address of a C label. No hope to compile this with another compiler |
| * than GCC! |
| */ |
| |
| /* ++andreas: no need for complicated code, just depend on prefetch */ |
| |
| static void atari_reset (void) |
| { |
| long tc_val = 0; |
| long reset_addr; |
| |
| /* On the Medusa, phys. 0x4 may contain garbage because it's no |
| ROM. See above for explanation why we cannot use PTOV(4). */ |
| reset_addr = MACH_IS_HADES ? 0x7fe00030 : |
| MACH_IS_MEDUSA || MACH_IS_AB40 ? 0xe00030 : |
| *(unsigned long *) 0xff000004; |
| |
| /* reset ACIA for switch off OverScan, if it's active */ |
| if (atari_switches & ATARI_SWITCH_OVSC_IKBD) |
| acia.key_ctrl = ACIA_RESET; |
| if (atari_switches & ATARI_SWITCH_OVSC_MIDI) |
| acia.mid_ctrl = ACIA_RESET; |
| |
| /* processor independent: turn off interrupts and reset the VBR; |
| * the caches must be left enabled, else prefetching the final jump |
| * instruction doesn't work. */ |
| local_irq_disable(); |
| __asm__ __volatile__ |
| ("moveq #0,%/d0\n\t" |
| "movec %/d0,%/vbr" |
| : : : "d0" ); |
| |
| if (CPU_IS_040_OR_060) { |
| unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040); |
| if (CPU_IS_060) { |
| /* 68060: clear PCR to turn off superscalar operation */ |
| __asm__ __volatile__ |
| ("moveq #0,%/d0\n\t" |
| ".chip 68060\n\t" |
| "movec %%d0,%%pcr\n\t" |
| ".chip 68k" |
| : : : "d0" ); |
| } |
| |
| __asm__ __volatile__ |
| ("movel %0,%/d0\n\t" |
| "andl #0xff000000,%/d0\n\t" |
| "orw #0xe020,%/d0\n\t" /* map 16 MB, enable, cacheable */ |
| ".chip 68040\n\t" |
| "movec %%d0,%%itt0\n\t" |
| "movec %%d0,%%dtt0\n\t" |
| ".chip 68k\n\t" |
| "jmp %0@\n\t" |
| : /* no outputs */ |
| : "a" (jmp_addr040) |
| : "d0" ); |
| jmp_addr_label040: |
| __asm__ __volatile__ |
| ("moveq #0,%/d0\n\t" |
| "nop\n\t" |
| ".chip 68040\n\t" |
| "cinva %%bc\n\t" |
| "nop\n\t" |
| "pflusha\n\t" |
| "nop\n\t" |
| "movec %%d0,%%tc\n\t" |
| "nop\n\t" |
| /* the following setup of transparent translations is needed on the |
| * Afterburner040 to successfully reboot. Other machines shouldn't |
| * care about a different tt regs setup, they also didn't care in |
| * the past that the regs weren't turned off. */ |
| "movel #0xffc000,%%d0\n\t" /* whole insn space cacheable */ |
| "movec %%d0,%%itt0\n\t" |
| "movec %%d0,%%itt1\n\t" |
| "orw #0x40,%/d0\n\t" /* whole data space non-cacheable/ser. */ |
| "movec %%d0,%%dtt0\n\t" |
| "movec %%d0,%%dtt1\n\t" |
| ".chip 68k\n\t" |
| "jmp %0@" |
| : /* no outputs */ |
| : "a" (reset_addr) |
| : "d0"); |
| } |
| else |
| __asm__ __volatile__ |
| ("pmove %0@,%/tc\n\t" |
| "jmp %1@" |
| : /* no outputs */ |
| : "a" (&tc_val), "a" (reset_addr)); |
| } |
| |
| |
| static void atari_get_model(char *model) |
| { |
| strcpy(model, "Atari "); |
| switch (atari_mch_cookie >> 16) { |
| case ATARI_MCH_ST: |
| if (ATARIHW_PRESENT(MSTE_CLK)) |
| strcat (model, "Mega ST"); |
| else |
| strcat (model, "ST"); |
| break; |
| case ATARI_MCH_STE: |
| if (MACH_IS_MSTE) |
| strcat (model, "Mega STE"); |
| else |
| strcat (model, "STE"); |
| break; |
| case ATARI_MCH_TT: |
| if (MACH_IS_MEDUSA) |
| /* Medusa has TT _MCH cookie */ |
| strcat (model, "Medusa"); |
| else if (MACH_IS_HADES) |
| strcat(model, "Hades"); |
| else |
| strcat (model, "TT"); |
| break; |
| case ATARI_MCH_FALCON: |
| strcat (model, "Falcon"); |
| if (MACH_IS_AB40) |
| strcat (model, " (with Afterburner040)"); |
| break; |
| default: |
| sprintf (model + strlen (model), "(unknown mach cookie 0x%lx)", |
| atari_mch_cookie); |
| break; |
| } |
| } |
| |
| |
| static int atari_get_hardware_list(char *buffer) |
| { |
| int len = 0, i; |
| |
| for (i = 0; i < m68k_num_memory; i++) |
| len += sprintf (buffer+len, "\t%3ld MB at 0x%08lx (%s)\n", |
| m68k_memory[i].size >> 20, m68k_memory[i].addr, |
| (m68k_memory[i].addr & 0xff000000 ? |
| "alternate RAM" : "ST-RAM")); |
| |
| #define ATARIHW_ANNOUNCE(name,str) \ |
| if (ATARIHW_PRESENT(name)) \ |
| len += sprintf (buffer + len, "\t%s\n", str) |
| |
| len += sprintf (buffer + len, "Detected hardware:\n"); |
| ATARIHW_ANNOUNCE(STND_SHIFTER, "ST Shifter"); |
| ATARIHW_ANNOUNCE(EXTD_SHIFTER, "STe Shifter"); |
| ATARIHW_ANNOUNCE(TT_SHIFTER, "TT Shifter"); |
| ATARIHW_ANNOUNCE(VIDEL_SHIFTER, "Falcon Shifter"); |
| ATARIHW_ANNOUNCE(YM_2149, "Programmable Sound Generator"); |
| ATARIHW_ANNOUNCE(PCM_8BIT, "PCM 8 Bit Sound"); |
| ATARIHW_ANNOUNCE(CODEC, "CODEC Sound"); |
| ATARIHW_ANNOUNCE(TT_SCSI, "SCSI Controller NCR5380 (TT style)"); |
| ATARIHW_ANNOUNCE(ST_SCSI, "SCSI Controller NCR5380 (Falcon style)"); |
| ATARIHW_ANNOUNCE(ACSI, "ACSI Interface"); |
| ATARIHW_ANNOUNCE(IDE, "IDE Interface"); |
| ATARIHW_ANNOUNCE(FDCSPEED, "8/16 Mhz Switch for FDC"); |
| ATARIHW_ANNOUNCE(ST_MFP, "Multi Function Peripheral MFP 68901"); |
| ATARIHW_ANNOUNCE(TT_MFP, "Second Multi Function Peripheral MFP 68901"); |
| ATARIHW_ANNOUNCE(SCC, "Serial Communications Controller SCC 8530"); |
| ATARIHW_ANNOUNCE(ST_ESCC, "Extended Serial Communications Controller SCC 85230"); |
| ATARIHW_ANNOUNCE(ANALOG_JOY, "Paddle Interface"); |
| ATARIHW_ANNOUNCE(MICROWIRE, "MICROWIRE(tm) Interface"); |
| ATARIHW_ANNOUNCE(STND_DMA, "DMA Controller (24 bit)"); |
| ATARIHW_ANNOUNCE(EXTD_DMA, "DMA Controller (32 bit)"); |
| ATARIHW_ANNOUNCE(SCSI_DMA, "DMA Controller for NCR5380"); |
| ATARIHW_ANNOUNCE(SCC_DMA, "DMA Controller for SCC"); |
| ATARIHW_ANNOUNCE(TT_CLK, "Clock Chip MC146818A"); |
| ATARIHW_ANNOUNCE(MSTE_CLK, "Clock Chip RP5C15"); |
| ATARIHW_ANNOUNCE(SCU, "System Control Unit"); |
| ATARIHW_ANNOUNCE(BLITTER, "Blitter"); |
| ATARIHW_ANNOUNCE(VME, "VME Bus"); |
| ATARIHW_ANNOUNCE(DSP56K, "DSP56001 processor"); |
| |
| return(len); |
| } |
| |
| /* |
| * Local variables: |
| * c-indent-level: 4 |
| * tab-width: 8 |
| * End: |
| */ |