diff options
Diffstat (limited to 'arch/m68k/apollo')
-rw-r--r-- | arch/m68k/apollo/Makefile | 5 | ||||
-rw-r--r-- | arch/m68k/apollo/config.c | 305 | ||||
-rw-r--r-- | arch/m68k/apollo/dma.c | 50 | ||||
-rw-r--r-- | arch/m68k/apollo/dn_ints.c | 125 |
4 files changed, 485 insertions, 0 deletions
diff --git a/arch/m68k/apollo/Makefile b/arch/m68k/apollo/Makefile new file mode 100644 index 00000000000..39264f3b6ad --- /dev/null +++ b/arch/m68k/apollo/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for Linux arch/m68k/amiga source directory +# + +obj-y := config.o dn_ints.o dma.o diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c new file mode 100644 index 00000000000..26492947125 --- /dev/null +++ b/arch/m68k/apollo/config.c @@ -0,0 +1,305 @@ +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/tty.h> +#include <linux/console.h> +#include <linux/rtc.h> +#include <linux/vt_kern.h> +#include <linux/interrupt.h> + +#include <asm/setup.h> +#include <asm/bootinfo.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/apollohw.h> +#include <asm/irq.h> +#include <asm/rtc.h> +#include <asm/machdep.h> + +u_long sio01_physaddr; +u_long sio23_physaddr; +u_long rtc_physaddr; +u_long pica_physaddr; +u_long picb_physaddr; +u_long cpuctrl_physaddr; +u_long timer_physaddr; +u_long apollo_model; + +extern void dn_sched_init(irqreturn_t (*handler)(int,void *,struct pt_regs *)); +extern void dn_init_IRQ(void); +extern int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id); +extern void dn_free_irq(unsigned int irq, void *dev_id); +extern void dn_enable_irq(unsigned int); +extern void dn_disable_irq(unsigned int); +extern int show_dn_interrupts(struct seq_file *, void *); +extern unsigned long dn_gettimeoffset(void); +extern int dn_dummy_hwclk(int, struct rtc_time *); +extern int dn_dummy_set_clock_mmss(unsigned long); +extern void dn_dummy_reset(void); +extern void dn_dummy_waitbut(void); +extern struct fb_info *dn_fb_init(long *); +extern void dn_dummy_debug_init(void); +extern void dn_dummy_video_setup(char *,int *); +extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp); +#ifdef CONFIG_HEARTBEAT +static void dn_heartbeat(int on); +#endif +static irqreturn_t dn_timer_int(int irq,void *, struct pt_regs *); +static irqreturn_t (*sched_timer_handler)(int, void *, struct pt_regs *)=NULL; +static void dn_get_model(char *model); +static const char *apollo_models[] = { + [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)", + [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)", + [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)", + [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)", + [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)" +}; + +int apollo_parse_bootinfo(const struct bi_record *record) { + + int unknown = 0; + const unsigned long *data = record->data; + + switch(record->tag) { + case BI_APOLLO_MODEL: + apollo_model=*data; + break; + + default: + unknown=1; + } + + return unknown; +} + +void dn_setup_model(void) { + + + printk("Apollo hardware found: "); + printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]); + + switch(apollo_model) { + case APOLLO_UNKNOWN: + panic("Unknown apollo model"); + break; + case APOLLO_DN3000: + case APOLLO_DN3010: + sio01_physaddr=SAU8_SIO01_PHYSADDR; + rtc_physaddr=SAU8_RTC_PHYSADDR; + pica_physaddr=SAU8_PICA; + picb_physaddr=SAU8_PICB; + cpuctrl_physaddr=SAU8_CPUCTRL; + timer_physaddr=SAU8_TIMER; + break; + case APOLLO_DN4000: + sio01_physaddr=SAU7_SIO01_PHYSADDR; + sio23_physaddr=SAU7_SIO23_PHYSADDR; + rtc_physaddr=SAU7_RTC_PHYSADDR; + pica_physaddr=SAU7_PICA; + picb_physaddr=SAU7_PICB; + cpuctrl_physaddr=SAU7_CPUCTRL; + timer_physaddr=SAU7_TIMER; + break; + case APOLLO_DN4500: + panic("Apollo model not yet supported"); + break; + case APOLLO_DN3500: + sio01_physaddr=SAU7_SIO01_PHYSADDR; + sio23_physaddr=SAU7_SIO23_PHYSADDR; + rtc_physaddr=SAU7_RTC_PHYSADDR; + pica_physaddr=SAU7_PICA; + picb_physaddr=SAU7_PICB; + cpuctrl_physaddr=SAU7_CPUCTRL; + timer_physaddr=SAU7_TIMER; + break; + default: + panic("Undefined apollo model"); + break; + } + + +} + +int dn_serial_console_wait_key(struct console *co) { + + while(!(sio01.srb_csrb & 1)) + barrier(); + return sio01.rhrb_thrb; +} + +void dn_serial_console_write (struct console *co, const char *str,unsigned int count) +{ + while(count--) { + if (*str == '\n') { + sio01.rhrb_thrb = (unsigned char)'\r'; + while (!(sio01.srb_csrb & 0x4)) + ; + } + sio01.rhrb_thrb = (unsigned char)*str++; + while (!(sio01.srb_csrb & 0x4)) + ; + } +} + +void dn_serial_print (const char *str) +{ + while (*str) { + if (*str == '\n') { + sio01.rhrb_thrb = (unsigned char)'\r'; + while (!(sio01.srb_csrb & 0x4)) + ; + } + sio01.rhrb_thrb = (unsigned char)*str++; + while (!(sio01.srb_csrb & 0x4)) + ; + } +} + +void config_apollo(void) { + + int i; + + dn_setup_model(); + + mach_sched_init=dn_sched_init; /* */ + mach_init_IRQ=dn_init_IRQ; + mach_default_handler=NULL; + mach_request_irq = dn_request_irq; + mach_free_irq = dn_free_irq; + enable_irq = dn_enable_irq; + disable_irq = dn_disable_irq; + mach_get_irq_list = show_dn_interrupts; + mach_gettimeoffset = dn_gettimeoffset; + mach_max_dma_address = 0xffffffff; + mach_hwclk = dn_dummy_hwclk; /* */ + mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */ + mach_process_int = dn_process_int; + mach_reset = dn_dummy_reset; /* */ +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif +#ifdef CONFIG_HEARTBEAT + mach_heartbeat = dn_heartbeat; +#endif + mach_get_model = dn_get_model; + + cpuctrl=0xaa00; + + /* clear DMA translation table */ + for(i=0;i<0x400;i++) + addr_xlat_map[i]=0; + +} + +irqreturn_t dn_timer_int(int irq, void *dev_id, struct pt_regs *fp) { + + volatile unsigned char x; + + sched_timer_handler(irq,dev_id,fp); + + x=*(volatile unsigned char *)(timer+3); + x=*(volatile unsigned char *)(timer+5); + + return IRQ_HANDLED; +} + +void dn_sched_init(irqreturn_t (*timer_routine)(int, void *, struct pt_regs *)) { + + /* program timer 1 */ + *(volatile unsigned char *)(timer+3)=0x01; + *(volatile unsigned char *)(timer+1)=0x40; + *(volatile unsigned char *)(timer+5)=0x09; + *(volatile unsigned char *)(timer+7)=0xc4; + + /* enable IRQ of PIC B */ + *(volatile unsigned char *)(pica+1)&=(~8); + +#if 0 + printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3)); + printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3)); +#endif + + sched_timer_handler=timer_routine; + request_irq(0,dn_timer_int,0,NULL,NULL); + +} + +unsigned long dn_gettimeoffset(void) { + + return 0xdeadbeef; + +} + +int dn_dummy_hwclk(int op, struct rtc_time *t) { + + + if(!op) { /* read */ + t->tm_sec=rtc->second; + t->tm_min=rtc->minute; + t->tm_hour=rtc->hours; + t->tm_mday=rtc->day_of_month; + t->tm_wday=rtc->day_of_week; + t->tm_mon=rtc->month; + t->tm_year=rtc->year; + } else { + rtc->second=t->tm_sec; + rtc->minute=t->tm_min; + rtc->hours=t->tm_hour; + rtc->day_of_month=t->tm_mday; + if(t->tm_wday!=-1) + rtc->day_of_week=t->tm_wday; + rtc->month=t->tm_mon; + rtc->year=t->tm_year; + } + + return 0; + +} + +int dn_dummy_set_clock_mmss(unsigned long nowtime) { + + printk("set_clock_mmss\n"); + + return 0; + +} + +void dn_dummy_reset(void) { + + dn_serial_print("The end !\n"); + + for(;;); + +} + +void dn_dummy_waitbut(void) { + + dn_serial_print("waitbut\n"); + +} + +static void dn_get_model(char *model) +{ + strcpy(model, "Apollo "); + if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500) + strcat(model, apollo_models[apollo_model - APOLLO_DN3000]); +} + +#ifdef CONFIG_HEARTBEAT +static int dn_cpuctrl=0xff00; + +static void dn_heartbeat(int on) { + + if(on) { + dn_cpuctrl&=~0x100; + cpuctrl=dn_cpuctrl; + } + else { + dn_cpuctrl&=~0x100; + dn_cpuctrl|=0x100; + cpuctrl=dn_cpuctrl; + } +} +#endif + diff --git a/arch/m68k/apollo/dma.c b/arch/m68k/apollo/dma.c new file mode 100644 index 00000000000..aed8be177ef --- /dev/null +++ b/arch/m68k/apollo/dma.c @@ -0,0 +1,50 @@ +#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 <asm/setup.h> +#include <asm/bootinfo.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/apollodma.h> +#include <asm/io.h> + +/* note only works for 16 Bit 1 page DMA's */ + +static unsigned short next_free_xlat_entry=0; + +unsigned short dma_map_page(unsigned long phys_addr,int count,int type) { + + unsigned long page_aligned_addr=phys_addr & (~((1<<12)-1)); + unsigned short start_map_addr=page_aligned_addr >> 10; + unsigned short free_xlat_entry, *xlat_map_entry; + int i; + + free_xlat_entry=next_free_xlat_entry; + for(i=0,xlat_map_entry=addr_xlat_map+(free_xlat_entry<<2);i<8;i++,xlat_map_entry++) { +#if 0 + printk("phys_addr: %x, page_aligned_addr: %x, start_map_addr: %x\n",phys_addr,page_aligned_addr,start_map_addr+i); +#endif + out_be16(xlat_map_entry, start_map_addr+i); + } + + next_free_xlat_entry+=2; + if(next_free_xlat_entry>125) + next_free_xlat_entry=0; + +#if 0 + printk("next_free_xlat_entry: %d\n",next_free_xlat_entry); +#endif + + return free_xlat_entry<<10; +} + +void dma_unmap_page(unsigned short dma_addr) { + + return ; + +} + diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c new file mode 100644 index 00000000000..a31259359a1 --- /dev/null +++ b/arch/m68k/apollo/dn_ints.c @@ -0,0 +1,125 @@ +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/jiffies.h> +#include <linux/kernel_stat.h> +#include <linux/timer.h> + +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/traps.h> +#include <asm/page.h> +#include <asm/machdep.h> +#include <asm/apollohw.h> +#include <asm/errno.h> + +static irq_handler_t dn_irqs[16]; + +irqreturn_t dn_process_int(int irq, struct pt_regs *fp) +{ + irqreturn_t res = IRQ_NONE; + + if(dn_irqs[irq-160].handler) { + res = dn_irqs[irq-160].handler(irq,dn_irqs[irq-160].dev_id,fp); + } else { + printk("spurious irq %d occurred\n",irq); + } + + *(volatile unsigned char *)(pica)=0x20; + *(volatile unsigned char *)(picb)=0x20; + + return res; +} + +void dn_init_IRQ(void) { + + int i; + + for(i=0;i<16;i++) { + dn_irqs[i].handler=NULL; + dn_irqs[i].flags=IRQ_FLG_STD; + dn_irqs[i].dev_id=NULL; + dn_irqs[i].devname=NULL; + } + +} + +int dn_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id) { + + if((irq<0) || (irq>15)) { + printk("Trying to request invalid IRQ\n"); + return -ENXIO; + } + + if(!dn_irqs[irq].handler) { + dn_irqs[irq].handler=handler; + dn_irqs[irq].flags=IRQ_FLG_STD; + dn_irqs[irq].dev_id=dev_id; + dn_irqs[irq].devname=devname; + if(irq<8) + *(volatile unsigned char *)(pica+1)&=~(1<<irq); + else + *(volatile unsigned char *)(picb+1)&=~(1<<(irq-8)); + + return 0; + } + else { + printk("Trying to request already assigned irq %d\n",irq); + return -ENXIO; + } + +} + +void dn_free_irq(unsigned int irq, void *dev_id) { + + if((irq<0) || (irq>15)) { + printk("Trying to free invalid IRQ\n"); + return ; + } + + if(irq<8) + *(volatile unsigned char *)(pica+1)|=(1<<irq); + else + *(volatile unsigned char *)(picb+1)|=(1<<(irq-8)); + + dn_irqs[irq].handler=NULL; + dn_irqs[irq].flags=IRQ_FLG_STD; + dn_irqs[irq].dev_id=NULL; + dn_irqs[irq].devname=NULL; + + return ; + +} + +void dn_enable_irq(unsigned int irq) { + + printk("dn enable irq\n"); + +} + +void dn_disable_irq(unsigned int irq) { + + printk("dn disable irq\n"); + +} + +int show_dn_interrupts(struct seq_file *p, void *v) { + + printk("dn get irq list\n"); + + return 0; + +} + +struct fb_info *dn_dummy_fb_init(long *mem_start) { + + printk("fb init\n"); + + return NULL; + +} + +void dn_dummy_video_setup(char *options,int *ints) { + + printk("no video yet\n"); + +} |