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-rw-r--r--arch/m68k/amiga/Makefile1
-rw-r--r--arch/m68k/amiga/amiga.h5
-rw-r--r--arch/m68k/amiga/amiints.c8
-rw-r--r--arch/m68k/amiga/amisound.c12
-rw-r--r--arch/m68k/amiga/chipram.c3
-rw-r--r--arch/m68k/amiga/cia.c10
-rw-r--r--arch/m68k/amiga/config.c295
-rw-r--r--arch/m68k/amiga/pcmcia.c3
-rw-r--r--arch/m68k/amiga/platform.c11
9 files changed, 205 insertions, 143 deletions
diff --git a/arch/m68k/amiga/Makefile b/arch/m68k/amiga/Makefile
index 11dd30b16b3b..d17934237c66 100644
--- a/arch/m68k/amiga/Makefile
+++ b/arch/m68k/amiga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# Makefile for Linux arch/m68k/amiga source directory
#
diff --git a/arch/m68k/amiga/amiga.h b/arch/m68k/amiga/amiga.h
new file mode 100644
index 000000000000..00392781442c
--- /dev/null
+++ b/arch/m68k/amiga/amiga.h
@@ -0,0 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* amisound.c */
+void amiga_init_sound(void);
+void amiga_mksound(unsigned int hz, unsigned int ticks);
diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c
index 47b5f90002ab..7ff739e94896 100644
--- a/arch/m68k/amiga/amiints.c
+++ b/arch/m68k/amiga/amiints.c
@@ -46,7 +46,7 @@ static struct irq_chip amiga_irq_chip = {
* The builtin Amiga hardware interrupt handlers.
*/
-static void ami_int1(unsigned int irq, struct irq_desc *desc)
+static void ami_int1(struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
@@ -69,7 +69,7 @@ static void ami_int1(unsigned int irq, struct irq_desc *desc)
}
}
-static void ami_int3(unsigned int irq, struct irq_desc *desc)
+static void ami_int3(struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
@@ -92,7 +92,7 @@ static void ami_int3(unsigned int irq, struct irq_desc *desc)
}
}
-static void ami_int4(unsigned int irq, struct irq_desc *desc)
+static void ami_int4(struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
@@ -121,7 +121,7 @@ static void ami_int4(unsigned int irq, struct irq_desc *desc)
}
}
-static void ami_int5(unsigned int irq, struct irq_desc *desc)
+static void ami_int5(struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
diff --git a/arch/m68k/amiga/amisound.c b/arch/m68k/amiga/amisound.c
index 2559eefc6aff..5fd93dfab809 100644
--- a/arch/m68k/amiga/amisound.c
+++ b/arch/m68k/amiga/amisound.c
@@ -16,6 +16,8 @@
#include <asm/amigahw.h>
+#include "amiga.h"
+
static unsigned short *snd_data;
static const signed char sine_data[] = {
0, 39, 75, 103, 121, 127, 121, 103, 75, 39,
@@ -51,7 +53,7 @@ void __init amiga_init_sound(void)
snd_data = amiga_chip_alloc_res(sizeof(sine_data), &beep_res);
if (!snd_data) {
- printk (KERN_CRIT "amiga init_sound: failed to allocate chipmem\n");
+ pr_crit("amiga init_sound: failed to allocate chipmem\n");
return;
}
memcpy (snd_data, sine_data, sizeof(sine_data));
@@ -65,8 +67,8 @@ void __init amiga_init_sound(void)
#endif
}
-static void nosound( unsigned long ignored );
-static DEFINE_TIMER(sound_timer, nosound, 0, 0);
+static void nosound(struct timer_list *unused);
+static DEFINE_TIMER(sound_timer, nosound);
void amiga_mksound( unsigned int hz, unsigned int ticks )
{
@@ -76,7 +78,7 @@ void amiga_mksound( unsigned int hz, unsigned int ticks )
return;
local_irq_save(flags);
- del_timer( &sound_timer );
+ timer_delete(&sound_timer);
if (hz > 20 && hz < 32767) {
unsigned long period = (clock_constant / hz);
@@ -107,7 +109,7 @@ void amiga_mksound( unsigned int hz, unsigned int ticks )
}
-static void nosound( unsigned long ignored )
+static void nosound(struct timer_list *unused)
{
/* turn off DMA for audio channel 2 */
custom.dmacon = DMAF_AUD2;
diff --git a/arch/m68k/amiga/chipram.c b/arch/m68k/amiga/chipram.c
index 99449fbf9a72..a537953bc10c 100644
--- a/arch/m68k/amiga/chipram.c
+++ b/arch/m68k/amiga/chipram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
** linux/amiga/chipram.c
**
@@ -87,7 +88,7 @@ void *amiga_chip_alloc_res(unsigned long size, struct resource *res)
atomic_sub(size, &chipavail);
pr_debug("amiga_chip_alloc_res: returning %pR\n", res);
- return (void *)ZTWO_VADDR(res->start);
+ return ZTWO_VADDR(res->start);
}
void amiga_chip_free(void *ptr)
diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c
index 18c0e29976e3..b9aee983e6f4 100644
--- a/arch/m68k/amiga/cia.c
+++ b/arch/m68k/amiga/cia.c
@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/seq_file.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <asm/irq.h>
#include <asm/amigahw.h>
@@ -87,10 +88,19 @@ static irqreturn_t cia_handler(int irq, void *dev_id)
struct ciabase *base = dev_id;
int mach_irq;
unsigned char ints;
+ unsigned long flags;
+ /* Interrupts get disabled while the timer irq flag is cleared and
+ * the timer interrupt serviced.
+ */
mach_irq = base->cia_irq;
+ local_irq_save(flags);
ints = cia_set_irq(base, CIA_ICR_ALL);
amiga_custom.intreq = base->int_mask;
+ if (ints & 1)
+ generic_handle_irq(mach_irq);
+ local_irq_restore(flags);
+ mach_irq++, ints >>= 1;
for (; ints; mach_irq++, ints >>= 1) {
if (ints & 1)
generic_handle_irq(mach_irq);
diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c
index b819390e29cd..242d18e750b0 100644
--- a/arch/m68k/amiga/config.c
+++ b/arch/m68k/amiga/config.c
@@ -16,11 +16,10 @@
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/seq_file.h>
-#include <linux/tty.h>
+#include <linux/clocksource.h>
#include <linux/console.h>
#include <linux/rtc.h>
#include <linux/init.h>
-#include <linux/vt_kern.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/zorro.h>
@@ -28,14 +27,17 @@
#include <linux/keyboard.h>
#include <asm/bootinfo.h>
+#include <asm/bootinfo-amiga.h>
+#include <asm/byteorder.h>
#include <asm/setup.h>
-#include <asm/pgtable.h>
#include <asm/amigahw.h>
#include <asm/amigaints.h>
#include <asm/irq.h>
-#include <asm/rtc.h>
#include <asm/machdep.h>
#include <asm/io.h>
+#include <asm/config.h>
+
+#include "amiga.h"
static unsigned long amiga_model;
@@ -91,14 +93,10 @@ static char *amiga_models[] __initdata = {
static char amiga_model_name[13] = "Amiga ";
-static void amiga_sched_init(irq_handler_t handler);
+static void amiga_sched_init(void);
static void amiga_get_model(char *model);
static void amiga_get_hardware_list(struct seq_file *m);
-/* amiga specific timer functions */
-static u32 amiga_gettimeoffset(void);
-extern void amiga_mksound(unsigned int count, unsigned int ticks);
static void amiga_reset(void);
-extern void amiga_init_sound(void);
static void amiga_mem_console_write(struct console *co, const char *b,
unsigned int count);
#ifdef CONFIG_HEARTBEAT
@@ -140,48 +138,57 @@ 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 __init amiga_parse_bootinfo(const struct bi_record *record)
{
int unknown = 0;
- const unsigned long *data = record->data;
+ const void *data = record->data;
- switch (record->tag) {
+ switch (be16_to_cpu(record->tag)) {
case BI_AMIGA_MODEL:
- amiga_model = *data;
+ amiga_model = be32_to_cpup(data);
break;
case BI_AMIGA_ECLOCK:
- amiga_eclock = *data;
+ amiga_eclock = be32_to_cpup(data);
break;
case BI_AMIGA_CHIPSET:
- amiga_chipset = *data;
+ amiga_chipset = be32_to_cpup(data);
break;
case BI_AMIGA_CHIP_SIZE:
- amiga_chip_size = *(const int *)data;
+ amiga_chip_size = be32_to_cpup(data);
break;
case BI_AMIGA_VBLANK:
- amiga_vblank = *(const unsigned char *)data;
+ amiga_vblank = *(const __u8 *)data;
break;
case BI_AMIGA_PSFREQ:
- amiga_psfreq = *(const unsigned char *)data;
+ amiga_psfreq = *(const __u8 *)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++];
+ const struct ConfigDev *cd = data;
+ struct zorro_dev_init *dev = &zorro_autocon_init[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;
+ dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr);
+ dev->slotsize = be16_to_cpu(cd->cd_SlotSize);
+ dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr);
+ dev->boardsize = be32_to_cpu(cd->cd_BoardSize);
+
+ /* CS-LAB Warp 1260 workaround */
+ if (be16_to_cpu(dev->rom.er_Manufacturer) == ZORRO_MANUF(ZORRO_PROD_CSLAB_WARP_1260) &&
+ dev->rom.er_Product == ZORRO_PROD(ZORRO_PROD_CSLAB_WARP_1260)) {
+
+ /* turn off all interrupts */
+ pr_info("Warp 1260 card detected: applying interrupt storm workaround\n");
+ *(uint32_t *)(dev->boardaddr + 0x1000) = 0xfff;
+ }
} else
- printk("amiga_parse_bootinfo: too many AutoConfig devices\n");
+ pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n");
#endif /* CONFIG_ZORRO */
break;
@@ -207,108 +214,53 @@ static void __init amiga_identify(void)
memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
- printk("Amiga hardware found: ");
+ pr_info("Amiga hardware found: ");
if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
- printk("[%s] ", amiga_models[amiga_model-AMI_500]);
+ pr_cont("[%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;
+ break;
case AMI_600:
case AMI_1200:
AMIGAHW_SET(A1200_IDE);
AMIGAHW_SET(PCMCIA);
+ fallthrough;
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;
+ break;
case AMI_3000:
case AMI_3000T:
AMIGAHW_SET(AMBER_FF);
AMIGAHW_SET(MAGIC_REKICK);
- /* fall through */
+ fallthrough;
case AMI_3000PLUS:
AMIGAHW_SET(A3000_SCSI);
AMIGAHW_SET(A3000_CLK);
AMIGAHW_SET(ZORRO3);
- goto Generic;
+ break;
case AMI_4000T:
AMIGAHW_SET(A4000_SCSI);
- /* fall through */
+ fallthrough;
case AMI_4000:
AMIGAHW_SET(A4000_IDE);
AMIGAHW_SET(A3000_CLK);
AMIGAHW_SET(ZORRO3);
- goto Generic;
+ break;
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 (amiga_custom.deniseid & 0xf) {
- case 0x0c:
- AMIGAHW_SET(DENISE_HR);
- break;
- case 0x08:
- AMIGAHW_SET(LISA);
- break;
- }
- break;
- default:
- AMIGAHW_SET(DENISE);
- break;
- }
- switch ((amiga_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:
@@ -318,9 +270,63 @@ static void __init amiga_identify(void)
panic("Unknown Amiga Model");
}
+ 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 (amiga_custom.deniseid & 0xf) {
+ case 0x0c:
+ AMIGAHW_SET(DENISE_HR);
+ break;
+ case 0x08:
+ AMIGAHW_SET(LISA);
+ break;
+ default:
+ AMIGAHW_SET(DENISE);
+ break;
+ }
+ break;
+ }
+ switch ((amiga_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);
+
#define AMIGAHW_ANNOUNCE(name, str) \
if (AMIGAHW_PRESENT(name)) \
- printk(str)
+ pr_cont(str)
AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
@@ -352,12 +358,20 @@ static void __init amiga_identify(void)
AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
if (AMIGAHW_PRESENT(ZORRO))
- printk("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
- printk("\n");
+ pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
+ pr_cont("\n");
#undef AMIGAHW_ANNOUNCE
}
+
+static unsigned long amiga_random_get_entropy(void)
+{
+ /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */
+ return *(unsigned long *)&amiga_custom.vposr;
+}
+
+
/*
* Setup the Amiga configuration info
*/
@@ -377,17 +391,8 @@ void __init config_amiga(void)
mach_init_IRQ = amiga_init_IRQ;
mach_get_model = amiga_get_model;
mach_get_hardware_list = amiga_get_hardware_list;
- arch_gettimeoffset = amiga_gettimeoffset;
-
- /*
- * 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_max_dma_address = 0xffffffff;
-
mach_reset = amiga_reset;
-#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
mach_beep = amiga_mksound;
#endif
@@ -395,6 +400,8 @@ void __init config_amiga(void)
mach_heartbeat = amiga_heartbeat;
#endif
+ mach_random_get_entropy = amiga_random_get_entropy;
+
/* Fill in the clock value (based on the 700 kHz E-Clock) */
amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
@@ -412,7 +419,7 @@ void __init config_amiga(void)
if (m68k_memory[i].addr < 16*1024*1024) {
if (i == 0) {
/* don't cut off the branch we're sitting on */
- printk("Warning: kernel runs in Zorro II memory\n");
+ pr_warn("Warning: kernel runs in Zorro II memory\n");
continue;
}
disabled_z2mem += m68k_memory[i].size;
@@ -423,8 +430,8 @@ void __init config_amiga(void)
}
}
if (disabled_z2mem)
- printk("%dK of Zorro II memory will not be used as system memory\n",
- disabled_z2mem>>10);
+ pr_info("%dK of Zorro II memory will not be used as system memory\n",
+ disabled_z2mem>>10);
}
/* request all RAM */
@@ -453,9 +460,30 @@ void __init config_amiga(void)
*(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
}
+static u64 amiga_read_clk(struct clocksource *cs);
+
+static struct clocksource amiga_clk = {
+ .name = "ciab",
+ .rating = 250,
+ .read = amiga_read_clk,
+ .mask = CLOCKSOURCE_MASK(32),
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
static unsigned short jiffy_ticks;
+static u32 clk_total, clk_offset;
-static void __init amiga_sched_init(irq_handler_t timer_routine)
+static irqreturn_t ciab_timer_handler(int irq, void *dev_id)
+{
+ clk_total += jiffy_ticks;
+ clk_offset = 0;
+ legacy_timer_tick(1);
+ timer_heartbeat();
+
+ return IRQ_HANDLED;
+}
+
+static void __init amiga_sched_init(void)
{
static struct resource sched_res = {
.name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
@@ -463,7 +491,7 @@ static void __init amiga_sched_init(irq_handler_t timer_routine)
jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ);
if (request_resource(&mb_resources._ciab, &sched_res))
- printk("Cannot allocate ciab.ta{lo,hi}\n");
+ pr_warn("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;
@@ -473,19 +501,22 @@ static void __init amiga_sched_init(irq_handler_t timer_routine)
* 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
*/
- if (request_irq(IRQ_AMIGA_CIAB_TA, timer_routine, 0, "timer", NULL))
+ if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER,
+ "timer", NULL))
pr_err("Couldn't register timer interrupt\n");
/* start timer */
ciab.cra |= 0x11;
-}
-#define TICK_SIZE 10000
+ clocksource_register_hz(&amiga_clk, amiga_eclock);
+}
-/* This is always executed with interrupts disabled. */
-static u32 amiga_gettimeoffset(void)
+static u64 amiga_read_clk(struct clocksource *cs)
{
unsigned short hi, lo, hi2;
- u32 ticks, offset = 0;
+ unsigned long flags;
+ u32 ticks;
+
+ local_irq_save(flags);
/* read CIA B timer A current value */
hi = ciab.tahi;
@@ -502,12 +533,14 @@ static u32 amiga_gettimeoffset(void)
if (ticks > jiffy_ticks / 2)
/* check for pending interrupt */
if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
- offset = 10000;
+ clk_offset = jiffy_ticks;
ticks = jiffy_ticks - ticks;
- ticks = (10000 * ticks) / jiffy_ticks;
+ ticks += clk_offset + clk_total;
- return (ticks + offset) * 1000;
+ local_irq_restore(flags);
+
+ return ticks;
}
static void amiga_reset(void) __noreturn;
@@ -592,7 +625,7 @@ struct savekmsg {
unsigned long magic2; /* SAVEKMSG_MAGIC2 */
unsigned long magicptr; /* address of magic1 */
unsigned long size;
- char data[0];
+ char data[];
};
static struct savekmsg *savekmsg;
@@ -608,6 +641,8 @@ static void amiga_mem_console_write(struct console *co, const char *s,
static int __init amiga_savekmsg_setup(char *arg)
{
+ bool registered;
+
if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
return 0;
@@ -618,14 +653,16 @@ static int __init amiga_savekmsg_setup(char *arg)
/* Just steal the block, the chipram allocator isn't functional yet */
amiga_chip_size -= SAVEKMSG_MAXMEM;
- savekmsg = (void *)ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size);
+ savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size);
savekmsg->magic1 = SAVEKMSG_MAGIC1;
savekmsg->magic2 = SAVEKMSG_MAGIC2;
savekmsg->magicptr = ZTWO_PADDR(savekmsg);
savekmsg->size = 0;
+ registered = !!amiga_console_driver.write;
amiga_console_driver.write = amiga_mem_console_write;
- register_console(&amiga_console_driver);
+ if (!registered)
+ register_console(&amiga_console_driver);
return 0;
}
@@ -707,11 +744,16 @@ void amiga_serial_gets(struct console *co, char *s, int len)
static int __init amiga_debug_setup(char *arg)
{
- if (MACH_IS_AMIGA && !strcmp(arg, "ser")) {
- /* no initialization required (?) */
- amiga_console_driver.write = amiga_serial_console_write;
+ bool registered;
+
+ if (!MACH_IS_AMIGA || strcmp(arg, "ser"))
+ return 0;
+
+ /* no initialization required (?) */
+ registered = !!amiga_console_driver.write;
+ amiga_console_driver.write = amiga_serial_console_write;
+ if (!registered)
register_console(&amiga_console_driver);
- }
return 0;
}
@@ -766,8 +808,7 @@ static void amiga_get_hardware_list(struct seq_file *m)
if (AMIGAHW_PRESENT(name)) \
seq_printf (m, "\t%s\n", str)
- seq_printf (m, "Detected hardware:\n");
-
+ seq_puts(m, "Detected hardware:\n");
AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
@@ -802,7 +843,7 @@ static void amiga_get_hardware_list(struct seq_file *m)
seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion "
"Device%s\n",
AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
- zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
+ zorro_num_autocon, str_plural(zorro_num_autocon));
#endif /* CONFIG_ZORRO */
#undef AMIGAHW_ANNOUNCE
@@ -812,6 +853,6 @@ static void amiga_get_hardware_list(struct seq_file *m)
* The Amiga keyboard driver needs key_maps, but we cannot export it in
* drivers/char/defkeymap.c, as it is autogenerated
*/
-#ifdef CONFIG_HW_CONSOLE
+#ifdef CONFIG_VT
EXPORT_SYMBOL_GPL(key_maps);
#endif
diff --git a/arch/m68k/amiga/pcmcia.c b/arch/m68k/amiga/pcmcia.c
index 7106f0c3639b..63cce6b590df 100644
--- a/arch/m68k/amiga/pcmcia.c
+++ b/arch/m68k/amiga/pcmcia.c
@@ -26,11 +26,10 @@ static unsigned char cfg_byte = GAYLE_CFG_0V|GAYLE_CFG_150NS;
void pcmcia_reset(void)
{
unsigned long reset_start_time = jiffies;
- unsigned char b;
gayle_reset = 0x00;
while (time_before(jiffies, reset_start_time + 1*HZ/100));
- b = gayle_reset;
+ READ_ONCE(gayle_reset);
}
EXPORT_SYMBOL(pcmcia_reset);
diff --git a/arch/m68k/amiga/platform.c b/arch/m68k/amiga/platform.c
index 6083088c0cca..d34029d7b058 100644
--- a/arch/m68k/amiga/platform.c
+++ b/arch/m68k/amiga/platform.c
@@ -13,6 +13,7 @@
#include <asm/amigahw.h>
#include <asm/amigayle.h>
+#include <asm/byteorder.h>
#ifdef CONFIG_ZORRO
@@ -56,7 +57,7 @@ static int __init amiga_init_bus(void)
n = AMIGAHW_PRESENT(ZORRO3) ? 4 : 2;
pdev = platform_device_register_simple("amiga-zorro", -1,
zorro_resources, n);
- return PTR_RET(pdev);
+ return PTR_ERR_OR_ZERO(pdev);
}
subsys_initcall(amiga_init_bus);
@@ -66,10 +67,12 @@ static int __init z_dev_present(zorro_id id)
{
unsigned int i;
- for (i = 0; i < zorro_num_autocon; i++)
- if (zorro_autocon[i].rom.er_Manufacturer == ZORRO_MANUF(id) &&
- zorro_autocon[i].rom.er_Product == ZORRO_PROD(id))
+ for (i = 0; i < zorro_num_autocon; i++) {
+ const struct ExpansionRom *rom = &zorro_autocon_init[i].rom;
+ if (be16_to_cpu(rom->er_Manufacturer) == ZORRO_MANUF(id) &&
+ rom->er_Product == ZORRO_PROD(id))
return 1;
+ }
return 0;
}