summaryrefslogtreecommitdiff
path: root/arch/m68k/apollo
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/apollo')
-rw-r--r--arch/m68k/apollo/Makefile5
-rw-r--r--arch/m68k/apollo/config.c305
-rw-r--r--arch/m68k/apollo/dma.c50
-rw-r--r--arch/m68k/apollo/dn_ints.c125
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");
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 17:05:46 +0000