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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/amiga
downloadlinux-linaro-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/ppc/amiga')
-rw-r--r--arch/ppc/amiga/Makefile8
-rw-r--r--arch/ppc/amiga/amiga_ksyms.c1
-rw-r--r--arch/ppc/amiga/amiints.c323
-rw-r--r--arch/ppc/amiga/amisound.c1
-rw-r--r--arch/ppc/amiga/bootinfo.c80
-rw-r--r--arch/ppc/amiga/chipram.c1
-rw-r--r--arch/ppc/amiga/cia.c178
-rw-r--r--arch/ppc/amiga/config.c962
-rw-r--r--arch/ppc/amiga/ints.c160
-rw-r--r--arch/ppc/amiga/pcmcia.c1
-rw-r--r--arch/ppc/amiga/time.c58
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;
+}