diff options
Diffstat (limited to 'arch/ppc/amiga')
| -rw-r--r-- | arch/ppc/amiga/Makefile | 8 | ||||
| -rw-r--r-- | arch/ppc/amiga/amiga_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/ppc/amiga/amiints.c | 323 | ||||
| -rw-r--r-- | arch/ppc/amiga/amisound.c | 1 | ||||
| -rw-r--r-- | arch/ppc/amiga/bootinfo.c | 80 | ||||
| -rw-r--r-- | arch/ppc/amiga/chipram.c | 1 | ||||
| -rw-r--r-- | arch/ppc/amiga/cia.c | 178 | ||||
| -rw-r--r-- | arch/ppc/amiga/config.c | 962 | ||||
| -rw-r--r-- | arch/ppc/amiga/ints.c | 160 | ||||
| -rw-r--r-- | arch/ppc/amiga/pcmcia.c | 1 | ||||
| -rw-r--r-- | arch/ppc/amiga/time.c | 58 |
11 files changed, 1773 insertions, 0 deletions
diff --git a/arch/ppc/amiga/Makefile b/arch/ppc/amiga/Makefile new file mode 100644 index 000000000000..59fec0a3ac8e --- /dev/null +++ b/arch/ppc/amiga/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for Linux arch/m68k/amiga source directory +# + +obj-y := config.o amiints.o cia.o time.o bootinfo.o amisound.o \ + chipram.o amiga_ksyms.o + +obj-$(CONFIG_AMIGA_PCMCIA) += pcmcia.o diff --git a/arch/ppc/amiga/amiga_ksyms.c b/arch/ppc/amiga/amiga_ksyms.c new file mode 100644 index 000000000000..ec74e5b7a1ce --- /dev/null +++ b/arch/ppc/amiga/amiga_ksyms.c @@ -0,0 +1 @@ +#include "../../m68k/amiga/amiga_ksyms.c" diff --git a/arch/ppc/amiga/amiints.c b/arch/ppc/amiga/amiints.c new file mode 100644 index 000000000000..91195e2ce38d --- /dev/null +++ b/arch/ppc/amiga/amiints.c @@ -0,0 +1,323 @@ +/* + * arch/ppc/amiga/amiints.c -- Amiga Linux interrupt handling code + * + * 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. + * + * 11/07/96: rewritten interrupt handling, irq lists are exists now only for + * this sources where it makes sense (VERTB/PORTS/EXTER) and you must + * be careful that dev_id for this sources is unique since this the + * only possibility to distinguish between different handlers for + * free_irq. irq lists also have different irq flags: + * - IRQ_FLG_FAST: handler is inserted at top of list (after other + * fast handlers) + * - IRQ_FLG_SLOW: handler is inserted at bottom of list and before + * they're executed irq level is set to the previous + * one, but handlers don't need to be reentrant, if + * reentrance occurred, slow handlers will be just + * called again. + * The whole interrupt handling for CIAs is moved to cia.c + * /Roman Zippel + * + * 07/08/99: rewamp of the interrupt handling - we now have two types of + * interrupts, normal and fast handlers, fast handlers being + * marked with SA_INTERRUPT and runs with all other interrupts + * disabled. Normal interrupts disable their own source but + * run with all other interrupt sources enabled. + * PORTS and EXTER interrupts are always shared even if the + * drivers do not explicitly mark this when calling + * request_irq which they really should do. + * This is similar to the way interrupts are handled on all + * other architectures and makes a ton of sense besides + * having the advantage of making it easier to share + * drivers. + * /Jes + */ + +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel_stat.h> +#include <linux/init.h> + +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/traps.h> +#include <asm/amigahw.h> +#include <asm/amigaints.h> +#include <asm/amipcmcia.h> + +#ifdef CONFIG_APUS +#include <asm/amigappc.h> +#endif + +extern void cia_init_IRQ(struct ciabase *base); + +unsigned short ami_intena_vals[AMI_STD_IRQS] = { + IF_VERTB, IF_COPER, IF_AUD0, IF_AUD1, IF_AUD2, IF_AUD3, IF_BLIT, + IF_DSKSYN, IF_DSKBLK, IF_RBF, IF_TBE, IF_SOFT, IF_PORTS, IF_EXTER +}; +static const unsigned char ami_servers[AMI_STD_IRQS] = { + 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1 +}; + +static short ami_ablecount[AMI_IRQS]; + +static void ami_badint(int irq, void *dev_id, struct pt_regs *fp) +{ +/* num_spurious += 1;*/ +} + +/* + * void amiga_init_IRQ(void) + * + * Parameters: None + * + * Returns: Nothing + * + * This function should be called during kernel startup to initialize + * the amiga IRQ handling routines. + */ + +__init +void amiga_init_IRQ(void) +{ + int i; + + for (i = 0; i < AMI_IRQS; i++) + ami_ablecount[i] = 0; + + /* turn off PCMCIA interrupts */ + if (AMIGAHW_PRESENT(PCMCIA)) + gayle.inten = GAYLE_IRQ_IDE; + + /* turn off all interrupts... */ + custom.intena = 0x7fff; + custom.intreq = 0x7fff; + +#ifdef CONFIG_APUS + /* Clear any inter-CPU interrupt requests. Circumvents bug in + Blizzard IPL emulation HW (or so it appears). */ + APUS_WRITE(APUS_INT_LVL, INTLVL_SETRESET | INTLVL_MASK); + + /* Init IPL emulation. */ + APUS_WRITE(APUS_REG_INT, REGINT_INTMASTER | REGINT_ENABLEIPL); + APUS_WRITE(APUS_IPL_EMU, IPLEMU_DISABLEINT); + APUS_WRITE(APUS_IPL_EMU, IPLEMU_SETRESET | IPLEMU_IPLMASK); +#endif + /* ... and enable the master interrupt bit */ + custom.intena = IF_SETCLR | IF_INTEN; + + cia_init_IRQ(&ciaa_base); + cia_init_IRQ(&ciab_base); +} + +/* + * Enable/disable a particular machine specific interrupt source. + * Note that this may affect other interrupts in case of a shared interrupt. + * This function should only be called for a _very_ short time to change some + * internal data, that may not be changed by the interrupt at the same time. + * ami_(enable|disable)_irq calls may also be nested. + */ + +void amiga_enable_irq(unsigned int irq) +{ + if (irq >= AMI_IRQS) { + printk("%s: Unknown IRQ %d\n", __FUNCTION__, irq); + return; + } + + ami_ablecount[irq]--; + if (ami_ablecount[irq]<0) + ami_ablecount[irq]=0; + else if (ami_ablecount[irq]) + return; + + /* No action for auto-vector interrupts */ + if (irq >= IRQ_AMIGA_AUTO){ + printk("%s: Trying to enable auto-vector IRQ %i\n", + __FUNCTION__, irq - IRQ_AMIGA_AUTO); + return; + } + + if (irq >= IRQ_AMIGA_CIAA) { + cia_set_irq(irq, 0); + cia_able_irq(irq, 1); + return; + } + + /* enable the interrupt */ + custom.intena = IF_SETCLR | ami_intena_vals[irq]; +} + +void amiga_disable_irq(unsigned int irq) +{ + if (irq >= AMI_IRQS) { + printk("%s: Unknown IRQ %d\n", __FUNCTION__, irq); + return; + } + + if (ami_ablecount[irq]++) + return; + + /* No action for auto-vector interrupts */ + if (irq >= IRQ_AMIGA_AUTO) { + printk("%s: Trying to disable auto-vector IRQ %i\n", + __FUNCTION__, irq - IRQ_AMIGA_AUTO); + return; + } + + if (irq >= IRQ_AMIGA_CIAA) { + cia_able_irq(irq, 0); + return; + } + + /* disable the interrupt */ + custom.intena = ami_intena_vals[irq]; +} + +inline void amiga_do_irq(int irq, struct pt_regs *fp) +{ + irq_desc_t *desc = irq_desc + irq; + struct irqaction *action = desc->action; + + kstat_cpu(0).irqs[irq]++; + action->handler(irq, action->dev_id, fp); +} + +void amiga_do_irq_list(int irq, struct pt_regs *fp) +{ + irq_desc_t *desc = irq_desc + irq; + struct irqaction *action; + + kstat_cpu(0).irqs[irq]++; + + custom.intreq = ami_intena_vals[irq]; + + for (action = desc->action; action; action = action->next) + action->handler(irq, action->dev_id, fp); +} + +/* + * The builtin Amiga hardware interrupt handlers. + */ + +static void ami_int1(int irq, void *dev_id, struct pt_regs *fp) +{ + unsigned short ints = custom.intreqr & custom.intenar; + + /* if serial transmit buffer empty, interrupt */ + if (ints & IF_TBE) { + custom.intreq = IF_TBE; + amiga_do_irq(IRQ_AMIGA_TBE, fp); + } + + /* if floppy disk transfer complete, interrupt */ + if (ints & IF_DSKBLK) { + custom.intreq = IF_DSKBLK; + amiga_do_irq(IRQ_AMIGA_DSKBLK, fp); + } + + /* if software interrupt set, interrupt */ + if (ints & IF_SOFT) { + custom.intreq = IF_SOFT; + amiga_do_irq(IRQ_AMIGA_SOFT, fp); + } +} + +static void ami_int3(int irq, void *dev_id, struct pt_regs *fp) +{ + unsigned short ints = custom.intreqr & custom.intenar; + + /* if a blitter interrupt */ + if (ints & IF_BLIT) { + custom.intreq = IF_BLIT; + amiga_do_irq(IRQ_AMIGA_BLIT, fp); + } + + /* if a copper interrupt */ + if (ints & IF_COPER) { + custom.intreq = IF_COPER; + amiga_do_irq(IRQ_AMIGA_COPPER, fp); + } + + /* if a vertical blank interrupt */ + if (ints & IF_VERTB) + amiga_do_irq_list(IRQ_AMIGA_VERTB, fp); +} + +static void ami_int4(int irq, void *dev_id, struct pt_regs *fp) +{ + unsigned short ints = custom.intreqr & custom.intenar; + + /* if audio 0 interrupt */ + if (ints & IF_AUD0) { + custom.intreq = IF_AUD0; + amiga_do_irq(IRQ_AMIGA_AUD0, fp); + } + + /* if audio 1 interrupt */ + if (ints & IF_AUD1) { + custom.intreq = IF_AUD1; + amiga_do_irq(IRQ_AMIGA_AUD1, fp); + } + + /* if audio 2 interrupt */ + if (ints & IF_AUD2) { + custom.intreq = IF_AUD2; + amiga_do_irq(IRQ_AMIGA_AUD2, fp); + } + + /* if audio 3 interrupt */ + if (ints & IF_AUD3) { + custom.intreq = IF_AUD3; + amiga_do_irq(IRQ_AMIGA_AUD3, fp); + } +} + +static void ami_int5(int irq, void *dev_id, struct pt_regs *fp) +{ + unsigned short ints = custom.intreqr & custom.intenar; + + /* if serial receive buffer full interrupt */ + if (ints & IF_RBF) { + /* acknowledge of IF_RBF must be done by the serial interrupt */ + amiga_do_irq(IRQ_AMIGA_RBF, fp); + } + + /* if a disk sync interrupt */ + if (ints & IF_DSKSYN) { + custom.intreq = IF_DSKSYN; + amiga_do_irq(IRQ_AMIGA_DSKSYN, fp); + } +} + +static void ami_int7(int irq, void *dev_id, struct pt_regs *fp) +{ + panic ("level 7 interrupt received\n"); +} + +#ifdef CONFIG_APUS +/* The PPC irq handling links all handlers requested on the same vector + and executes them in a loop. Having ami_badint at the end of the chain + is a bad idea. */ +struct irqaction amiga_sys_irqaction[AUTO_IRQS] = { + { .handler = ami_badint, .name = "spurious int" }, + { .handler = ami_int1, .name = "int1 handler" }, + { 0, /* CIAA */ }, + { .handler = ami_int3, .name = "int3 handler" }, + { .handler = ami_int4, .name = "int4 handler" }, + { .handler = ami_int5, .name = "int5 handler" }, + { 0, /* CIAB */ }, + { .handler = ami_int7, .name = "int7 handler" }, +}; +#else +void (*amiga_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = { + ami_badint, ami_int1, ami_badint, ami_int3, + ami_int4, ami_int5, ami_badint, ami_int7 +}; +#endif diff --git a/arch/ppc/amiga/amisound.c b/arch/ppc/amiga/amisound.c new file mode 100644 index 000000000000..2b86cbef79f6 --- /dev/null +++ b/arch/ppc/amiga/amisound.c @@ -0,0 +1 @@ +#include "../../m68k/amiga/amisound.c" diff --git a/arch/ppc/amiga/bootinfo.c b/arch/ppc/amiga/bootinfo.c new file mode 100644 index 000000000000..e2e965661d03 --- /dev/null +++ b/arch/ppc/amiga/bootinfo.c @@ -0,0 +1,80 @@ +/* + * arch/ppc/amiga/bootinfo.c + * + * Extracted from arch/m68k/kernel/setup.c. + * Should be properly generalized and put somewhere else. + * Jesper + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/init.h> + +#include <asm/setup.h> +#include <asm/bootinfo.h> + +extern char cmd_line[CL_SIZE]; + +extern int num_memory; +extern int m68k_realnum_memory; +extern struct mem_info memory[NUM_MEMINFO]; +extern struct mem_info m68k_memory[NUM_MEMINFO]; +extern struct mem_info ramdisk; + +extern int amiga_parse_bootinfo(const struct bi_record *); +extern int atari_parse_bootinfo(const struct bi_record *); +extern int mac_parse_bootinfo(const struct bi_record *); + +void __init parse_bootinfo(const struct bi_record *record) +{ + while (record->tag != BI_LAST) { + int unknown = 0; + const u_long *data = record->data; + switch (record->tag) { + case BI_MACHTYPE: + case BI_CPUTYPE: + case BI_FPUTYPE: + case BI_MMUTYPE: + /* Already set up by head.S */ + break; + + case BI_MEMCHUNK: + if (num_memory < NUM_MEMINFO) { + memory[num_memory].addr = data[0]; + memory[num_memory].size = data[1]; + num_memory++; + + /* FIXME: duplicate for m68k drivers. */ + m68k_memory[m68k_realnum_memory].addr = data[0]; + m68k_memory[m68k_realnum_memory].size = data[1]; + m68k_realnum_memory++; + } else + printk("parse_bootinfo: too many memory chunks\n"); + break; + + case BI_RAMDISK: + ramdisk.addr = data[0]; + ramdisk.size = data[1]; + break; + + case BI_COMMAND_LINE: + strlcpy(cmd_line, (const char *)data, sizeof(cmd_line)); + break; + + default: + if (MACH_IS_AMIGA) + unknown = amiga_parse_bootinfo(record); + else if (MACH_IS_ATARI) + unknown = atari_parse_bootinfo(record); + else if (MACH_IS_MAC) + unknown = mac_parse_bootinfo(record); + else + unknown = 1; + } + if (unknown) + printk("parse_bootinfo: unknown tag 0x%04x ignored\n", + record->tag); + record = (struct bi_record *)((u_long)record+record->size); + } +} diff --git a/arch/ppc/amiga/chipram.c b/arch/ppc/amiga/chipram.c new file mode 100644 index 000000000000..e6ab3c6b223c --- /dev/null +++ b/arch/ppc/amiga/chipram.c @@ -0,0 +1 @@ +#include "../../m68k/amiga/chipram.c" diff --git a/arch/ppc/amiga/cia.c b/arch/ppc/amiga/cia.c new file mode 100644 index 000000000000..ad961465b6cb --- /dev/null +++ b/arch/ppc/amiga/cia.c @@ -0,0 +1,178 @@ +/* + * arch/ppc/amiga/cia.c - CIA support + * + * Copyright (C) 1996 Roman Zippel + * + * The concept of some functions bases on the original Amiga OS function + * + * 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. + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel_stat.h> +#include <linux/init.h> + +#include <asm/irq.h> +#include <asm/amigahw.h> +#include <asm/amigaints.h> + +struct ciabase { + volatile struct CIA *cia; + u_char icr_mask, icr_data; + u_short int_mask; + int handler_irq, cia_irq, server_irq; + char *name; +} ciaa_base = { + &ciaa, 0, 0, IF_PORTS, + IRQ_AMIGA_AUTO_2, IRQ_AMIGA_CIAA, + IRQ_AMIGA_PORTS, + "CIAA handler" +}, ciab_base = { + &ciab, 0, 0, IF_EXTER, + IRQ_AMIGA_AUTO_6, IRQ_AMIGA_CIAB, + IRQ_AMIGA_EXTER, + "CIAB handler" +}; + +#define CIA_SET_BASE_ADJUST_IRQ(base, irq) \ +do { \ + if (irq >= IRQ_AMIGA_CIAB) { \ + base = &ciab_base; \ + irq -= IRQ_AMIGA_CIAB; \ + } else { \ + base = &ciaa_base; \ + irq -= IRQ_AMIGA_CIAA; \ + } \ +} while (0) + +/* + * Cause or clear CIA interrupts, return old interrupt status. + */ + +static unsigned char cia_set_irq_private(struct ciabase *base, + unsigned char mask) +{ + u_char old; + + old = (base->icr_data |= base->cia->icr); + if (mask & CIA_ICR_SETCLR) + base->icr_data |= mask; + else + base->icr_data &= ~mask; + if (base->icr_data & base->icr_mask) + custom.intreq = IF_SETCLR | base->int_mask; + return old & base->icr_mask; +} + +unsigned char cia_set_irq(unsigned int irq, int set) +{ + struct ciabase *base; + unsigned char mask; + + if (irq >= IRQ_AMIGA_CIAB) + mask = (1 << (irq - IRQ_AMIGA_CIAB)); + else + mask = (1 << (irq - IRQ_AMIGA_CIAA)); + mask |= (set) ? CIA_ICR_SETCLR : 0; + + CIA_SET_BASE_ADJUST_IRQ(base, irq); + + return cia_set_irq_private(base, mask); +} + +unsigned char cia_get_irq_mask(unsigned int irq) +{ + struct ciabase *base; + + CIA_SET_BASE_ADJUST_IRQ(base, irq); + + return base->cia->icr; +} + +/* + * Enable or disable CIA interrupts, return old interrupt mask. + */ + +static unsigned char cia_able_irq_private(struct ciabase *base, + unsigned char mask) +{ + u_char old; + + old = base->icr_mask; + base->icr_data |= base->cia->icr; + base->cia->icr = mask; + if (mask & CIA_ICR_SETCLR) + base->icr_mask |= mask; + else + base->icr_mask &= ~mask; + base->icr_mask &= CIA_ICR_ALL; + + if (base->icr_data & base->icr_mask) + custom.intreq = IF_SETCLR | base->int_mask; + return old; +} + +unsigned char cia_able_irq(unsigned int irq, int enable) +{ + struct ciabase *base; + unsigned char mask; + + if (irq >= IRQ_AMIGA_CIAB) + mask = (1 << (irq - IRQ_AMIGA_CIAB)); + else + mask = (1 << (irq - IRQ_AMIGA_CIAA)); + mask |= (enable) ? CIA_ICR_SETCLR : 0; + + CIA_SET_BASE_ADJUST_IRQ(base, irq); + + return cia_able_irq_private(base, mask); +} + +static void cia_handler(int irq, void *dev_id, struct pt_regs *fp) +{ + struct ciabase *base = (struct ciabase *)dev_id; + irq_desc_t *desc; + struct irqaction *action; + int i; + unsigned char ints; + + irq = base->cia_irq; + desc = irq_desc + irq; + ints = cia_set_irq_private(base, CIA_ICR_ALL); + custom.intreq = base->int_mask; + for (i = 0; i < CIA_IRQS; i++, irq++) { + if (ints & 1) { + kstat_cpu(0).irqs[irq]++; + action = desc->action; + action->handler(irq, action->dev_id, fp); + } + ints >>= 1; + desc++; + } + amiga_do_irq_list(base->server_irq, fp); +} + +void __init cia_init_IRQ(struct ciabase *base) +{ + extern struct irqaction amiga_sys_irqaction[AUTO_IRQS]; + struct irqaction *action; + + /* clear any pending interrupt and turn off all interrupts */ + cia_set_irq_private(base, CIA_ICR_ALL); + cia_able_irq_private(base, CIA_ICR_ALL); + + /* install CIA handler */ + action = &amiga_sys_irqaction[base->handler_irq-IRQ_AMIGA_AUTO]; + action->handler = cia_handler; + action->dev_id = base; + action->name = base->name; + setup_irq(base->handler_irq, &amiga_sys_irqaction[base->handler_irq-IRQ_AMIGA_AUTO]); + + custom.intena = IF_SETCLR | base->int_mask; +} diff --git a/arch/ppc/amiga/config.c b/arch/ppc/amiga/config.c new file mode 100644 index 000000000000..af881d7454dd --- /dev/null +++ b/arch/ppc/amiga/config.c @@ -0,0 +1,962 @@ +#define m68k_debug_device debug_device + +/* + * arch/ppc/amiga/config.c + * + * Copyright (C) 1993 Hamish Macdonald + * + * 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 Amiga stuff + */ + +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/kd.h> +#include <linux/tty.h> +#include <linux/console.h> +#include <linux/init.h> +#ifdef CONFIG_ZORRO +#include <linux/zorro.h> +#endif + +#include <asm/bootinfo.h> +#include <asm/setup.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/amigahw.h> +#include <asm/amigaints.h> +#include <asm/irq.h> +#include <asm/machdep.h> +#include <asm/io.h> + +unsigned long powerup_PCI_present; +unsigned long powerup_BPPCPLUS_present; +unsigned long amiga_model; +unsigned long amiga_eclock; +unsigned long amiga_masterclock; +unsigned long amiga_colorclock; +unsigned long amiga_chipset; +unsigned char amiga_vblank; +unsigned char amiga_psfreq; +struct amiga_hw_present amiga_hw_present; + +static char s_a500[] __initdata = "A500"; +static char s_a500p[] __initdata = "A500+"; +static char s_a600[] __initdata = "A600"; +static char s_a1000[] __initdata = "A1000"; +static char s_a1200[] __initdata = "A1200"; +static char s_a2000[] __initdata = "A2000"; +static char s_a2500[] __initdata = "A2500"; +static char s_a3000[] __initdata = "A3000"; +static char s_a3000t[] __initdata = "A3000T"; +static char s_a3000p[] __initdata = "A3000+"; +static char s_a4000[] __initdata = "A4000"; +static char s_a4000t[] __initdata = "A4000T"; +static char s_cdtv[] __initdata = "CDTV"; +static char s_cd32[] __initdata = "CD32"; +static char s_draco[] __initdata = "Draco"; +static char *amiga_models[] __initdata = { + s_a500, s_a500p, s_a600, s_a1000, s_a1200, s_a2000, s_a2500, s_a3000, + s_a3000t, s_a3000p, s_a4000, s_a4000t, s_cdtv, s_cd32, s_draco, +}; + +static char amiga_model_name[13] = "Amiga "; + +extern char m68k_debug_device[]; + +static void amiga_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *)); +/* amiga specific irq functions */ +extern void amiga_init_IRQ (void); +extern void (*amiga_default_handler[]) (int, void *, struct pt_regs *); +extern int amiga_request_irq (unsigned int irq, + void (*handler)(int, void *, struct pt_regs *), + unsigned long flags, const char *devname, + void *dev_id); +extern void amiga_free_irq (unsigned int irq, void *dev_id); +extern void amiga_enable_irq (unsigned int); +extern void amiga_disable_irq (unsigned int); +static void amiga_get_model(char *model); +static int amiga_get_hardware_list(char *buffer); +/* amiga specific timer functions */ +static unsigned long amiga_gettimeoffset (void); +static void a3000_gettod (int *, int *, int *, int *, int *, int *); +static void a2000_gettod (int *, int *, int *, int *, int *, int *); +static int amiga_hwclk (int, struct hwclk_time *); +static int amiga_set_clock_mmss (unsigned long); +#ifdef CONFIG_AMIGA_FLOPPY +extern void amiga_floppy_setup(char *, int *); +#endif +static void amiga_reset (void); +extern void amiga_init_sound(void); +static void amiga_savekmsg_init(void); +static void amiga_mem_console_write(struct console *co, const char *b, + unsigned int count); +void amiga_serial_console_write(struct console *co, const char *s, + unsigned int count); +static void amiga_debug_init(void); +#ifdef CONFIG_HEARTBEAT +static void amiga_heartbeat(int on); +#endif + +static struct console amiga_console_driver = { + .name = "debug", + .flags = CON_PRINTBUFFER, + .index = -1, +}; + + + /* + * Motherboard Resources present in all Amiga models + */ + +static struct { + struct resource _ciab, _ciaa, _custom, _kickstart; +} mb_resources = { +// { "Ranger Memory", 0x00c00000, 0x00c7ffff }, + ._ciab = { "CIA B", 0x00bfd000, 0x00bfdfff }, + ._ciaa = { "CIA A", 0x00bfe000, 0x00bfefff }, + ._custom = { "Custom I/O", 0x00dff000, 0x00dfffff }, + ._kickstart = { "Kickstart ROM", 0x00f80000, 0x00ffffff } +}; + +static struct resource rtc_resource = { + NULL, 0x00dc0000, 0x00dcffff +}; + +static struct resource ram_resource[NUM_MEMINFO]; + + + /* + * Parse an Amiga-specific record in the bootinfo + */ + +int amiga_parse_bootinfo(const struct bi_record *record) +{ + int unknown = 0; + const unsigned long *data = record->data; + + switch (record->tag) { + case BI_AMIGA_MODEL: + { + unsigned long d = *data; + + powerup_PCI_present = d & 0x100; + amiga_model = d & 0xff; + } + break; + + case BI_AMIGA_ECLOCK: + amiga_eclock = *data; + break; + + case BI_AMIGA_CHIPSET: + amiga_chipset = *data; + break; + + case BI_AMIGA_CHIP_SIZE: + amiga_chip_size = *(const int *)data; + break; + + case BI_AMIGA_VBLANK: + amiga_vblank = *(const unsigned char *)data; + break; + + case BI_AMIGA_PSFREQ: + amiga_psfreq = *(const unsigned char *)data; + break; + + case BI_AMIGA_AUTOCON: +#ifdef CONFIG_ZORRO + if (zorro_num_autocon < ZORRO_NUM_AUTO) { + const struct ConfigDev *cd = (struct ConfigDev *)data; + struct zorro_dev *dev = &zorro_autocon[zorro_num_autocon++]; + dev->rom = cd->cd_Rom; + dev->slotaddr = cd->cd_SlotAddr; + dev->slotsize = cd->cd_SlotSize; + dev->resource.start = (unsigned long)cd->cd_BoardAddr; + dev->resource.end = dev->resource.start+cd->cd_BoardSize-1; + } else + printk("amiga_parse_bootinfo: too many AutoConfig devices\n"); +#endif /* CONFIG_ZORRO */ + break; + + case BI_AMIGA_SERPER: + /* serial port period: ignored here */ + break; + + case BI_AMIGA_PUP_BRIDGE: + powerup_PCI_present = *(const unsigned short *)data; + break; + + case BI_AMIGA_BPPC_SCSI: + powerup_BPPCPLUS_present = *(const unsigned short *)data; + break; + + default: + unknown = 1; + } + return(unknown); +} + + /* + * Identify builtin hardware + */ + +static void __init amiga_identify(void) +{ + /* Fill in some default values, if necessary */ + if (amiga_eclock == 0) + amiga_eclock = 709379; + + memset(&amiga_hw_present, 0, sizeof(amiga_hw_present)); + + printk("Amiga hardware found: "); + if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) { + printk("[%s] ", amiga_models[amiga_model-AMI_500]); + strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]); + } + + switch(amiga_model) { + case AMI_UNKNOWN: + goto Generic; + + case AMI_600: + case AMI_1200: + AMIGAHW_SET(A1200_IDE); + AMIGAHW_SET(PCMCIA); + case AMI_500: + case AMI_500PLUS: + case AMI_1000: + case AMI_2000: + case AMI_2500: + AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */ + goto Generic; + + case AMI_3000: + case AMI_3000T: + AMIGAHW_SET(AMBER_FF); + AMIGAHW_SET(MAGIC_REKICK); + /* fall through */ + case AMI_3000PLUS: + AMIGAHW_SET(A3000_SCSI); + AMIGAHW_SET(A3000_CLK); + AMIGAHW_SET(ZORRO3); + goto Generic; + + case AMI_4000T: + AMIGAHW_SET(A4000_SCSI); + /* fall through */ + case AMI_4000: + AMIGAHW_SET(A4000_IDE); + AMIGAHW_SET(A3000_CLK); + AMIGAHW_SET(ZORRO3); + goto Generic; + + case AMI_CDTV: + case AMI_CD32: + AMIGAHW_SET(CD_ROM); + AMIGAHW_SET(A2000_CLK); /* Is this correct? */ + goto Generic; + + Generic: + AMIGAHW_SET(AMI_VIDEO); + AMIGAHW_SET(AMI_BLITTER); + AMIGAHW_SET(AMI_AUDIO); + AMIGAHW_SET(AMI_FLOPPY); + AMIGAHW_SET(AMI_KEYBOARD); + AMIGAHW_SET(AMI_MOUSE); + AMIGAHW_SET(AMI_SERIAL); + AMIGAHW_SET(AMI_PARALLEL); + AMIGAHW_SET(CHIP_RAM); + AMIGAHW_SET(PAULA); + + switch(amiga_chipset) { + case CS_OCS: + case CS_ECS: + case CS_AGA: + switch (custom.deniseid & 0xf) { + case 0x0c: + AMIGAHW_SET(DENISE_HR); + break; + case 0x08: + AMIGAHW_SET(LISA); + break; + } + break; + default: + AMIGAHW_SET(DENISE); + break; + } + switch ((custom.vposr>>8) & 0x7f) { + case 0x00: + AMIGAHW_SET(AGNUS_PAL); + break; + case 0x10: + AMIGAHW_SET(AGNUS_NTSC); + break; + case 0x20: + case 0x21: + AMIGAHW_SET(AGNUS_HR_PAL); + break; + case 0x30: + case 0x31: + AMIGAHW_SET(AGNUS_HR_NTSC); + break; + case 0x22: + case 0x23: + AMIGAHW_SET(ALICE_PAL); + break; + case 0x32: + case 0x33: + AMIGAHW_SET(ALICE_NTSC); + break; + } + AMIGAHW_SET(ZORRO); + break; + + case AMI_DRACO: + panic("No support for Draco yet"); + + default: + panic("Unknown Amiga Model"); + } + +#define AMIGAHW_ANNOUNCE(name, str) \ + if (AMIGAHW_PRESENT(name)) \ + printk(str) + + AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO "); + AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER "); + AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF "); + AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO "); + AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY "); + AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI "); + AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI "); + AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE "); + AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE "); + AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM "); + AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD "); + AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE "); + AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL "); + AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL "); + AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK "); + AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK "); + AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM "); + AMIGAHW_ANNOUNCE(PAULA, "PAULA "); + AMIGAHW_ANNOUNCE(DENISE, "DENISE "); + AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR "); + AMIGAHW_ANNOUNCE(LISA, "LISA "); + AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL "); + AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC "); + AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL "); + AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC "); + AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL "); + AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC "); + AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK "); + AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA "); + if (AMIGAHW_PRESENT(ZORRO)) + printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : ""); + printk("\n"); + +#undef AMIGAHW_ANNOUNCE +} + + /* + * Setup the Amiga configuration info + */ + +void __init config_amiga(void) +{ + int i; + + amiga_debug_init(); + amiga_identify(); + + /* Some APUS boxes may have PCI memory, but ... */ + iomem_resource.name = "Memory"; + for (i = 0; i < 4; i++) + request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]); + + mach_sched_init = amiga_sched_init; + mach_init_IRQ = amiga_init_IRQ; +#ifndef CONFIG_APUS + mach_default_handler = &amiga_default_handler; + mach_request_irq = amiga_request_irq; + mach_free_irq = amiga_free_irq; + enable_irq = amiga_enable_irq; + disable_irq = amiga_disable_irq; +#endif + mach_get_model = amiga_get_model; + mach_get_hardware_list = amiga_get_hardware_list; + mach_gettimeoffset = amiga_gettimeoffset; + if (AMIGAHW_PRESENT(A3000_CLK)){ + mach_gettod = a3000_gettod; + rtc_resource.name = "A3000 RTC"; + request_resource(&iomem_resource, &rtc_resource); + } + else{ /* if (AMIGAHW_PRESENT(A2000_CLK)) */ + mach_gettod = a2000_gettod; + rtc_resource.name = "A2000 RTC"; + request_resource(&iomem_resource, &rtc_resource); + } + + mach_max_dma_address = 0xffffffff; /* + * default MAX_DMA=0xffffffff + * on all machines. If we don't + * do so, the SCSI code will not + * be able to allocate any mem + * for transfers, unless we are + * dealing with a Z2 mem only + * system. /Jes + */ + + mach_hwclk = amiga_hwclk; + mach_set_clock_mmss = amiga_set_clock_mmss; +#ifdef CONFIG_AMIGA_FLOPPY + mach_floppy_setup = amiga_floppy_setup; +#endif + mach_reset = amiga_reset; +#ifdef CONFIG_HEARTBEAT + mach_heartbeat = amiga_heartbeat; +#endif + + /* Fill in the clock values (based on the 700 kHz E-Clock) */ + amiga_masterclock = 40*amiga_eclock; /* 28 MHz */ + amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */ + + /* clear all DMA bits */ + custom.dmacon = DMAF_ALL; + /* ensure that the DMA master bit is set */ + custom.dmacon = DMAF_SETCLR | DMAF_MASTER; + + /* request all RAM */ + for (i = 0; i < m68k_num_memory; i++) { + ram_resource[i].name = + (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" : + (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" : + "16-bit Slow RAM"; + ram_resource[i].start = m68k_memory[i].addr; + ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1; + request_resource(&iomem_resource, &ram_resource[i]); + } + + /* initialize chipram allocator */ + amiga_chip_init (); + + /* debugging using chipram */ + if (!strcmp( m68k_debug_device, "mem" )){ + if (!AMIGAHW_PRESENT(CHIP_RAM)) + printk("Warning: no chipram present for debugging\n"); + else { + amiga_savekmsg_init(); + amiga_console_driver.write = amiga_mem_console_write; + register_console(&amiga_console_driver); + } + } + + /* our beloved beeper */ + if (AMIGAHW_PRESENT(AMI_AUDIO)) + amiga_init_sound(); + + /* + * if it is an A3000, set the magic bit that forces + * a hard rekick + */ + if (AMIGAHW_PRESENT(MAGIC_REKICK)) + *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80; +} + +static unsigned short jiffy_ticks; + +static void __init amiga_sched_init(irqreturn_t (*timer_routine)(int, void *, + struct pt_regs *)) +{ + static struct resource sched_res = { + "timer", 0x00bfd400, 0x00bfd5ff, + }; + jiffy_ticks = (amiga_eclock+HZ/2)/HZ; + + if (request_resource(&mb_resources._ciab, &sched_res)) + printk("Cannot allocate ciab.ta{lo,hi}\n"); + ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */ + ciab.talo = jiffy_ticks % 256; + ciab.tahi = jiffy_ticks / 256; + + /* install interrupt service routine for CIAB Timer A + * + * Please don't change this to use ciaa, as it interferes with the + * SCSI code. We'll have to take a look at this later + */ + request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL); + /* start timer */ + ciab.cra |= 0x11; +} + +#define TICK_SIZE 10000 + +extern unsigned char cia_get_irq_mask(unsigned int irq); + +/* This is always executed with interrupts disabled. */ +static unsigned long amiga_gettimeoffset (void) +{ + unsigned short hi, lo, hi2; + unsigned long ticks, offset = 0; + + /* read CIA B timer A current value */ + hi = ciab.tahi; + lo = ciab.talo; + hi2 = ciab.tahi; + + if (hi != hi2) { + lo = ciab.talo; + hi = hi2; + } + + ticks = hi << 8 | lo; + + if (ticks > jiffy_ticks / 2) + /* check for pending interrupt */ + if (cia_get_irq_mask(IRQ_AMIGA_CIAB) & CIA_ICR_TA) + offset = 10000; + + ticks = jiffy_ticks - ticks; + ticks = (10000 * ticks) / jiffy_ticks; + + return ticks + offset; +} + +static void a3000_gettod (int *yearp, int *monp, int *dayp, + int *hourp, int *minp, int *secp) +{ + volatile struct tod3000 *tod = TOD_3000; + + tod->cntrl1 = TOD3000_CNTRL1_HOLD; + + *secp = tod->second1 * 10 + tod->second2; + *minp = tod->minute1 * 10 + tod->minute2; + *hourp = tod->hour1 * 10 + tod->hour2; + *dayp = tod->day1 * 10 + tod->day2; + *monp = tod->month1 * 10 + tod->month2; + *yearp = tod->year1 * 10 + tod->year2; + + tod->cntrl1 = TOD3000_CNTRL1_FREE; +} + +static void a2000_gettod (int *yearp, int *monp, int *dayp, + int *hourp, int *minp, int *secp) +{ + volatile struct tod2000 *tod = TOD_2000; + + tod->cntrl1 = TOD2000_CNTRL1_HOLD; + + while (tod->cntrl1 & TOD2000_CNTRL1_BUSY) + ; + + *secp = tod->second1 * 10 + tod->second2; + *minp = tod->minute1 * 10 + tod->minute2; + *hourp = (tod->hour1 & 3) * 10 + tod->hour2; + *dayp = tod->day1 * 10 + tod->day2; + *monp = tod->month1 * 10 + tod->month2; + *yearp = tod->year1 * 10 + tod->year2; + + if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){ + if (!(tod->hour1 & TOD2000_HOUR1_PM) && *hourp == 12) + *hourp = 0; + else if ((tod->hour1 & TOD2000_HOUR1_PM) && *hourp != 12) + *hourp += 12; + } + + tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD; +} + +static int amiga_hwclk(int op, struct hwclk_time *t) +{ + if (AMIGAHW_PRESENT(A3000_CLK)) { + volatile struct tod3000 *tod = TOD_3000; + + tod->cntrl1 = TOD3000_CNTRL1_HOLD; + + if (!op) { /* read */ + t->sec = tod->second1 * 10 + tod->second2; + t->min = tod->minute1 * 10 + tod->minute2; + t->hour = tod->hour1 * 10 + tod->hour2; + t->day = tod->day1 * 10 + tod->day2; + t->wday = tod->weekday; + t->mon = tod->month1 * 10 + tod->month2 - 1; + t->year = tod->year1 * 10 + tod->year2; + if (t->year <= 69) + t->year += 100; + } else { + tod->second1 = t->sec / 10; + tod->second2 = t->sec % 10; + tod->minute1 = t->min / 10; + tod->minute2 = t->min % 10; + tod->hour1 = t->hour / 10; + tod->hour2 = t->hour % 10; + tod->day1 = t->day / 10; + tod->day2 = t->day % 10; + if (t->wday != -1) + tod->weekday = t->wday; + tod->month1 = (t->mon + 1) / 10; + tod->month2 = (t->mon + 1) % 10; + if (t->year >= 100) + t->year -= 100; + tod->year1 = t->year / 10; + tod->year2 = t->year % 10; + } + + tod->cntrl1 = TOD3000_CNTRL1_FREE; + } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { + volatile struct tod2000 *tod = TOD_2000; + + tod->cntrl1 = TOD2000_CNTRL1_HOLD; + + while (tod->cntrl1 & TOD2000_CNTRL1_BUSY) + ; + + if (!op) { /* read */ + t->sec = tod->second1 * 10 + tod->second2; + t->min = tod->minute1 * 10 + tod->minute2; + t->hour = (tod->hour1 & 3) * 10 + tod->hour2; + t->day = tod->day1 * 10 + tod->day2; + t->wday = tod->weekday; + t->mon = tod->month1 * 10 + tod->month2 - 1; + t->year = tod->year1 * 10 + tod->year2; + if (t->year <= 69) + t->year += 100; + + if (!(tod->cntrl3 & TOD2000_CNTRL3_24HMODE)){ + if (!(tod->hour1 & TOD2000_HOUR1_PM) && t->hour == 12) + t->hour = 0; + else if ((tod->hour1 & TOD2000_HOUR1_PM) && t->hour != 12) + t->hour += 12; + } + } else { + tod->second1 = t->sec / 10; + tod->second2 = t->sec % 10; + tod->minute1 = t->min / 10; + tod->minute2 = t->min % 10; + if (tod->cntrl3 & TOD2000_CNTRL3_24HMODE) + tod->hour1 = t->hour / 10; + else if (t->hour >= 12) + tod->hour1 = TOD2000_HOUR1_PM + + (t->hour - 12) / 10; + else + tod->hour1 = t->hour / 10; + tod->hour2 = t->hour % 10; + tod->day1 = t->day / 10; + tod->day2 = t->day % 10; + if (t->wday != -1) + tod->weekday = t->wday; + tod->month1 = (t->mon + 1) / 10; + tod->month2 = (t->mon + 1) % 10; + if (t->year >= 100) + t->year -= 100; + tod->year1 = t->year / 10; + tod->year2 = t->year % 10; + } + + tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD; + } + + return 0; +} + +static int amiga_set_clock_mmss (unsigned long nowtime) +{ + short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60; + + if (AMIGAHW_PRESENT(A3000_CLK)) { + volatile struct tod3000 *tod = TOD_3000; + + tod->cntrl1 = TOD3000_CNTRL1_HOLD; + + tod->second1 = real_seconds / 10; + tod->second2 = real_seconds % 10; + tod->minute1 = real_minutes / 10; + tod->minute2 = real_minutes % 10; + + tod->cntrl1 = TOD3000_CNTRL1_FREE; + } else /* if (AMIGAHW_PRESENT(A2000_CLK)) */ { + volatile struct tod2000 *tod = TOD_2000; + + tod->cntrl1 = TOD2000_CNTRL1_HOLD; + + while (tod->cntrl1 & TOD2000_CNTRL1_BUSY) + ; + + tod->second1 = real_seconds / 10; + tod->second2 = real_seconds % 10; + tod->minute1 = real_minutes / 10; + tod->minute2 = real_minutes % 10; + + tod->cntrl1 &= ~TOD2000_CNTRL1_HOLD; + } + + return 0; +} + +static NORET_TYPE void amiga_reset( void ) + ATTRIB_NORET; + +static void amiga_reset (void) +{ + for (;;); +} + + + /* + * Debugging + */ + +#define SAVEKMSG_MAXMEM 128*1024 + +#define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */ +#define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */ + +struct savekmsg { + unsigned long magic1; /* SAVEKMSG_MAGIC1 */ + unsigned long magic2; /* SAVEKMSG_MAGIC2 */ + unsigned long magicptr; /* address of magic1 */ + unsigned long size; + char data[0]; +}; + +static struct savekmsg *savekmsg = NULL; + +static void amiga_mem_console_write(struct console *co, const char *s, + unsigned int count) +{ + if (savekmsg->size+count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) { + memcpy(savekmsg->data+savekmsg->size, s, count); + savekmsg->size += count; + } +} + +static void amiga_savekmsg_init(void) +{ + static struct resource debug_res = { "Debug" }; + + savekmsg = amiga_chip_alloc_res(SAVEKMSG_MAXMEM, &debug_res); + savekmsg->magic1 = SAVEKMSG_MAGIC1; + savekmsg->magic2 = SAVEKMSG_MAGIC2; + savekmsg->magicptr = virt_to_phys(savekmsg); + savekmsg->size = 0; +} + +static void amiga_serial_putc(char c) +{ + custom.serdat = (unsigned char)c | 0x100; + mb(); + while (!(custom.serdatr & 0x2000)) + ; +} + +void amiga_serial_console_write(struct console *co, const char *s, + unsigned int count) +{ +#if 0 /* def CONFIG_KGDB */ + /* FIXME:APUS GDB doesn't seem to like O-packages before it is + properly connected with the target. */ + __gdb_output_string (s, count); +#else + while (count--) { + if (*s == '\n') + amiga_serial_putc('\r'); + amiga_serial_putc(*s++); + } +#endif +} + +#ifdef CONFIG_SERIAL_CONSOLE +void amiga_serial_puts(const char *s) +{ + amiga_serial_console_write(NULL, s, strlen(s)); +} + +int amiga_serial_console_wait_key(struct console *co) +{ + int ch; + + while (!(custom.intreqr & IF_RBF)) + barrier(); + ch = custom.serdatr & 0xff; + /* clear the interrupt, so that another character can be read */ + custom.intreq = IF_RBF; + return ch; +} + +void amiga_serial_gets(struct console *co, char *s, int len) +{ + int ch, cnt = 0; + + while (1) { + ch = amiga_serial_console_wait_key(co); + + /* Check for backspace. */ + if (ch == 8 || ch == 127) { + if (cnt == 0) { + amiga_serial_putc('\007'); + continue; + } + cnt--; + amiga_serial_puts("\010 \010"); + continue; + } + + /* Check for enter. */ + if (ch == 10 || ch == 13) + break; + + /* See if line is too long. */ + if (cnt >= len + 1) { + amiga_serial_putc(7); + cnt--; + continue; + } + + /* Store and echo character. */ + s[cnt++] = ch; + amiga_serial_putc(ch); + } + /* Print enter. */ + amiga_serial_puts("\r\n"); + s[cnt] = 0; +} +#endif + +static void __init amiga_debug_init(void) +{ + if (!strcmp( m68k_debug_device, "ser" )) { + /* no initialization required (?) */ + amiga_console_driver.write = amiga_serial_console_write; + register_console(&amiga_console_driver); + } +} + +#ifdef CONFIG_HEARTBEAT +static void amiga_heartbeat(int on) +{ + if (on) + ciaa.pra &= ~2; + else + ciaa.pra |= 2; +} +#endif + + /* + * Amiga specific parts of /proc + */ + +static void amiga_get_model(char *model) +{ + strcpy(model, amiga_model_name); +} + + +static int amiga_get_hardware_list(char *buffer) +{ + int len = 0; + + if (AMIGAHW_PRESENT(CHIP_RAM)) + len += sprintf(buffer+len, "Chip RAM:\t%ldK\n", amiga_chip_size>>10); + len += sprintf(buffer+len, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n", + amiga_psfreq, amiga_eclock); + if (AMIGAHW_PRESENT(AMI_VIDEO)) { + char *type; + switch(amiga_chipset) { + case CS_OCS: + type = "OCS"; + break; + case CS_ECS: + type = "ECS"; + break; + case CS_AGA: + type = "AGA"; + break; + default: + type = "Old or Unknown"; + break; + } + len += sprintf(buffer+len, "Graphics:\t%s\n", type); + } + +#define AMIGAHW_ANNOUNCE(name, str) \ + if (AMIGAHW_PRESENT(name)) \ + len += sprintf (buffer+len, "\t%s\n", str) + + len += sprintf (buffer + len, "Detected hardware:\n"); + + AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video"); + AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter"); + AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer"); + AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio"); + AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller"); + AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)"); + AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)"); + AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)"); + AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)"); + AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive"); + AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard"); + AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port"); + AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port"); + AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port"); + AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)"); + AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)"); + AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM"); + AMIGAHW_ANNOUNCE(PAULA, "Paula 8364"); + AMIGAHW_ANNOUNCE(DENISE, "Denise 8362"); + AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373"); + AMIGAHW_ANNOUNCE(LISA, "Lisa 8375"); + AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371"); + AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370"); + AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372"); + AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372"); + AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374"); + AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374"); + AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick"); + AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot"); + if (AMIGAHW_PRESENT(ZORRO)) + len += sprintf(buffer+len, "\tZorro II%s AutoConfig: %d Expansion " + "Device%s\n", + AMIGAHW_PRESENT(ZORRO3) ? "I" : "", + zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); + +#undef AMIGAHW_ANNOUNCE + + return(len); +} + +#ifdef CONFIG_APUS +int get_hardware_list(char *buffer) +{ + extern int get_cpuinfo(char *buffer); + int len = 0; + char model[80]; + u_long mem; + int i; + + if (mach_get_model) + mach_get_model(model); + else + strcpy(model, "Unknown PowerPC"); + + len += sprintf(buffer+len, "Model:\t\t%s\n", model); + len += get_cpuinfo(buffer+len); + for (mem = 0, i = 0; i < m68k_realnum_memory; i++) + mem += m68k_memory[i].size; + len += sprintf(buffer+len, "System Memory:\t%ldK\n", mem>>10); + + if (mach_get_hardware_list) + len += mach_get_hardware_list(buffer+len); + + return(len); +} +#endif diff --git a/arch/ppc/amiga/ints.c b/arch/ppc/amiga/ints.c new file mode 100644 index 000000000000..5d318e498f06 --- /dev/null +++ b/arch/ppc/amiga/ints.c @@ -0,0 +1,160 @@ +/* + * arch/ppc/amiga/ints.c + * + * Linux/m68k general interrupt handling code from arch/m68k/kernel/ints.c + * Needed to drive the m68k emulating IRQ hardware on the PowerUp boards. + */ + +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/kernel_stat.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/seq_file.h> + +#include <asm/setup.h> +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/traps.h> +#include <asm/page.h> +#include <asm/machdep.h> + +/* table for system interrupt handlers */ +static irq_handler_t irq_list[SYS_IRQS]; + +static const char *default_names[SYS_IRQS] = { + "spurious int", "int1 handler", "int2 handler", "int3 handler", + "int4 handler", "int5 handler", "int6 handler", "int7 handler" +}; + +/* The number of spurious interrupts */ +volatile unsigned int num_spurious; + +#define NUM_IRQ_NODES 100 +static irq_node_t nodes[NUM_IRQ_NODES]; + + +/* + * void init_IRQ(void) + * + * Parameters: None + * + * Returns: Nothing + * + * This function should be called during kernel startup to initialize + * the IRQ handling routines. + */ + +__init +void m68k_init_IRQ(void) +{ + int i; + + for (i = 0; i < SYS_IRQS; i++) { + if (mach_default_handler) + irq_list[i].handler = (*mach_default_handler)[i]; + irq_list[i].flags = 0; + irq_list[i].dev_id = NULL; + irq_list[i].devname = default_names[i]; + } + + for (i = 0; i < NUM_IRQ_NODES; i++) + nodes[i].handler = NULL; + + mach_init_IRQ (); +} + +irq_node_t *new_irq_node(void) +{ + irq_node_t *node; + short i; + + for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) + if (!node->handler) + return node; + + printk ("new_irq_node: out of nodes\n"); + return NULL; +} + +int sys_request_irq(unsigned int irq, + void (*handler)(int, void *, struct pt_regs *), + unsigned long flags, const char *devname, void *dev_id) +{ + if (irq < IRQ1 || irq > IRQ7) { + printk("%s: Incorrect IRQ %d from %s\n", + __FUNCTION__, irq, devname); + return -ENXIO; + } + +#if 0 + if (!(irq_list[irq].flags & IRQ_FLG_STD)) { + if (irq_list[irq].flags & IRQ_FLG_LOCK) { + printk("%s: IRQ %d from %s is not replaceable\n", + __FUNCTION__, irq, irq_list[irq].devname); + return -EBUSY; + } + if (!(flags & IRQ_FLG_REPLACE)) { + printk("%s: %s can't replace IRQ %d from %s\n", + __FUNCTION__, devname, irq, irq_list[irq].devname); + return -EBUSY; + } + } +#endif + + irq_list[irq].handler = handler; + irq_list[irq].flags = flags; + irq_list[irq].dev_id = dev_id; + irq_list[irq].devname = devname; + return 0; +} + +void sys_free_irq(unsigned int irq, void *dev_id) +{ + if (irq < IRQ1 || irq > IRQ7) { + printk("%s: Incorrect IRQ %d\n", __FUNCTION__, irq); + return; + } + + if (irq_list[irq].dev_id != dev_id) + printk("%s: Removing probably wrong IRQ %d from %s\n", + __FUNCTION__, irq, irq_list[irq].devname); + + irq_list[irq].handler = (*mach_default_handler)[irq]; + irq_list[irq].flags = 0; + irq_list[irq].dev_id = NULL; + irq_list[irq].devname = default_names[irq]; +} + +asmlinkage void process_int(unsigned long vec, struct pt_regs *fp) +{ + if (vec >= VEC_INT1 && vec <= VEC_INT7 && !MACH_IS_BVME6000) { + vec -= VEC_SPUR; + kstat_cpu(0).irqs[vec]++; + irq_list[vec].handler(vec, irq_list[vec].dev_id, fp); + } else { + if (mach_process_int) + mach_process_int(vec, fp); + else + panic("Can't process interrupt vector %ld\n", vec); + return; + } +} + +int m68k_get_irq_list(struct seq_file *p, void *v) +{ + int i; + + /* autovector interrupts */ + if (mach_default_handler) { + for (i = 0; i < SYS_IRQS; i++) { + seq_printf(p, "auto %2d: %10u ", i, + i ? kstat_cpu(0).irqs[i] : num_spurious); + seq_puts(p, " "); + seq_printf(p, "%s\n", irq_list[i].devname); + } + } + + mach_get_irq_list(p, v); + return 0; +} diff --git a/arch/ppc/amiga/pcmcia.c b/arch/ppc/amiga/pcmcia.c new file mode 100644 index 000000000000..5d29dc65093c --- /dev/null +++ b/arch/ppc/amiga/pcmcia.c @@ -0,0 +1 @@ +#include "../../m68k/amiga/pcmcia.c" diff --git a/arch/ppc/amiga/time.c b/arch/ppc/amiga/time.c new file mode 100644 index 000000000000..0073527a7036 --- /dev/null +++ b/arch/ppc/amiga/time.c @@ -0,0 +1,58 @@ +#include <linux/config.h> /* CONFIG_HEARTBEAT */ +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> + +#include <asm/machdep.h> +#include <asm/io.h> + +#include <linux/timex.h> + +unsigned long m68k_get_rtc_time(void) +{ + unsigned int year, mon, day, hour, min, sec; + + extern void arch_gettod(int *year, int *mon, int *day, int *hour, + int *min, int *sec); + + arch_gettod (&year, &mon, &day, &hour, &min, &sec); + + if ((year += 1900) < 1970) + year += 100; + + return mktime(year, mon, day, hour, min, sec); +} + +int m68k_set_rtc_time(unsigned long nowtime) +{ + if (mach_set_clock_mmss) + return mach_set_clock_mmss (nowtime); + return -1; +} + +void apus_heartbeat (void) +{ +#ifdef CONFIG_HEARTBEAT + static unsigned cnt = 0, period = 0, dist = 0; + + if (cnt == 0 || cnt == dist) + mach_heartbeat( 1 ); + else if (cnt == 7 || cnt == dist+7) + mach_heartbeat( 0 ); + + if (++cnt > period) { + cnt = 0; + /* The hyperbolic function below modifies the heartbeat period + * length in dependency of the current (5min) load. It goes + * through the points f(0)=126, f(1)=86, f(5)=51, + * f(inf)->30. */ + period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; + dist = period / 4; + } +#endif + /* should be made smarter */ + ppc_md.heartbeat_count = 1; +} |