aboutsummaryrefslogtreecommitdiff
path: root/arch/m68k/q40
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/q40')
-rw-r--r--arch/m68k/q40/README4
-rw-r--r--arch/m68k/q40/config.c26
-rw-r--r--arch/m68k/q40/q40ints.c61
3 files changed, 49 insertions, 42 deletions
diff --git a/arch/m68k/q40/README b/arch/m68k/q40/README
index f877b724979..93f4c4cd3c4 100644
--- a/arch/m68k/q40/README
+++ b/arch/m68k/q40/README
@@ -31,7 +31,7 @@ drivers used by the Q40, apart from the very obvious (console etc.):
char/joystick/* # most of this should work, not
# in default config.in
block/q40ide.c # startup for ide
- ide* # see Documentation/ide.txt
+ ide* # see Documentation/ide/ide.txt
floppy.c # normal PC driver, DMA emu in asm/floppy.h
# and arch/m68k/kernel/entry.S
# see drivers/block/README.fd
@@ -89,7 +89,7 @@ The main interrupt register IIRQ_REG will indicate whether an IRQ was internal
or from some ISA devices, EIRQ_REG can distinguish up to 8 ISA IRQs.
The Q40 custom chip is programmable to provide 2 periodic timers:
- - 50 or 200 Hz - level 2, !!THIS CANT BE DISABLED!!
+ - 50 or 200 Hz - level 2, !!THIS CAN'T BE DISABLED!!
- 10 or 20 KHz - level 4, used for dma-sound
Linux uses the 200 Hz interrupt for timer and beep by default.
diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c
index ad10fecec2f..e90fe903613 100644
--- a/arch/m68k/q40/config.c
+++ b/arch/m68k/q40/config.c
@@ -24,11 +24,11 @@
#include <linux/rtc.h>
#include <linux/vt_kern.h>
#include <linux/bcd.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/rtc.h>
#include <asm/bootinfo.h>
-#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/setup.h>
#include <asm/irq.h>
@@ -40,7 +40,7 @@ extern void q40_init_IRQ(void);
static void q40_get_model(char *model);
extern void q40_sched_init(irq_handler_t handler);
-static unsigned long q40_gettimeoffset(void);
+static u32 q40_gettimeoffset(void);
static int q40_hwclk(int, struct rtc_time *);
static unsigned int q40_get_ss(void);
static int q40_set_clock_mmss(unsigned long);
@@ -154,7 +154,7 @@ static unsigned int serports[] =
0x3f8,0x2f8,0x3e8,0x2e8,0
};
-static void q40_disable_irqs(void)
+static void __init q40_disable_irqs(void)
{
unsigned i, j;
@@ -170,7 +170,7 @@ void __init config_q40(void)
mach_sched_init = q40_sched_init;
mach_init_IRQ = q40_init_IRQ;
- mach_gettimeoffset = q40_gettimeoffset;
+ arch_gettimeoffset = q40_gettimeoffset;
mach_hwclk = q40_hwclk;
mach_get_ss = q40_get_ss;
mach_get_rtc_pll = q40_get_rtc_pll;
@@ -198,15 +198,15 @@ void __init config_q40(void)
}
-int q40_parse_bootinfo(const struct bi_record *rec)
+int __init q40_parse_bootinfo(const struct bi_record *rec)
{
return 1;
}
-static unsigned long q40_gettimeoffset(void)
+static u32 q40_gettimeoffset(void)
{
- return 5000 * (ql_ticks != 0);
+ return 5000 * (ql_ticks != 0) * 1000;
}
@@ -329,3 +329,15 @@ static int q40_set_rtc_pll(struct rtc_pll_info *pll)
} else
return -EINVAL;
}
+
+static __init int q40_add_kbd_device(void)
+{
+ struct platform_device *pdev;
+
+ if (!MACH_IS_Q40)
+ return -ENODEV;
+
+ pdev = platform_device_register_simple("q40kbd", -1, NULL, 0);
+ return PTR_ERR_OR_ZERO(pdev);
+}
+arch_initcall(q40_add_kbd_device);
diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c
index 9f0e3d59bf9..513f9bb17b9 100644
--- a/arch/m68k/q40/q40ints.c
+++ b/arch/m68k/q40/q40ints.c
@@ -15,10 +15,9 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <asm/ptrace.h>
-#include <asm/system.h>
-#include <asm/irq.h>
#include <asm/traps.h>
#include <asm/q40_master.h>
@@ -35,35 +34,36 @@
*/
static void q40_irq_handler(unsigned int, struct pt_regs *fp);
-static void q40_enable_irq(unsigned int);
-static void q40_disable_irq(unsigned int);
+static void q40_irq_enable(struct irq_data *data);
+static void q40_irq_disable(struct irq_data *data);
unsigned short q40_ablecount[35];
unsigned short q40_state[35];
-static int q40_irq_startup(unsigned int irq)
+static unsigned int q40_irq_startup(struct irq_data *data)
{
+ unsigned int irq = data->irq;
+
/* test for ISA ints not implemented by HW */
switch (irq) {
case 1: case 2: case 8: case 9:
case 11: case 12: case 13:
printk("%s: ISA IRQ %d not implemented by HW\n", __func__, irq);
- return -ENXIO;
+ /* FIXME return -ENXIO; */
}
return 0;
}
-static void q40_irq_shutdown(unsigned int irq)
+static void q40_irq_shutdown(struct irq_data *data)
{
}
-static struct irq_controller q40_irq_controller = {
+static struct irq_chip q40_irq_chip = {
.name = "q40",
- .lock = __SPIN_LOCK_UNLOCKED(q40_irq_controller.lock),
- .startup = q40_irq_startup,
- .shutdown = q40_irq_shutdown,
- .enable = q40_enable_irq,
- .disable = q40_disable_irq,
+ .irq_startup = q40_irq_startup,
+ .irq_shutdown = q40_irq_shutdown,
+ .irq_enable = q40_irq_enable,
+ .irq_disable = q40_irq_disable,
};
/*
@@ -81,13 +81,14 @@ static int disabled;
void __init q40_init_IRQ(void)
{
- m68k_setup_irq_controller(&q40_irq_controller, 1, Q40_IRQ_MAX);
+ m68k_setup_irq_controller(&q40_irq_chip, handle_simple_irq, 1,
+ Q40_IRQ_MAX);
/* setup handler for ISA ints */
m68k_setup_auto_interrupt(q40_irq_handler);
- m68k_irq_startup(IRQ_AUTO_2);
- m68k_irq_startup(IRQ_AUTO_4);
+ m68k_irq_startup_irq(IRQ_AUTO_2);
+ m68k_irq_startup_irq(IRQ_AUTO_4);
/* now enable some ints.. */
master_outb(1, EXT_ENABLE_REG); /* ISA IRQ 5-15 */
@@ -218,11 +219,11 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp)
switch (irq) {
case 4:
case 6:
- __m68k_handle_int(Q40_IRQ_SAMPLE, fp);
+ do_IRQ(Q40_IRQ_SAMPLE, fp);
return;
}
if (mir & Q40_IRQ_FRAME_MASK) {
- __m68k_handle_int(Q40_IRQ_FRAME, fp);
+ do_IRQ(Q40_IRQ_FRAME, fp);
master_outb(-1, FRAME_CLEAR_REG);
}
if ((mir & Q40_IRQ_SER_MASK) || (mir & Q40_IRQ_EXT_MASK)) {
@@ -257,7 +258,7 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp)
goto iirq;
}
q40_state[irq] |= IRQ_INPROGRESS;
- __m68k_handle_int(irq, fp);
+ do_IRQ(irq, fp);
q40_state[irq] &= ~IRQ_INPROGRESS;
/* naively enable everything, if that fails than */
@@ -288,25 +289,29 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp)
mir = master_inb(IIRQ_REG);
/* should test whether keyboard irq is really enabled, doing it in defhand */
if (mir & Q40_IRQ_KEYB_MASK)
- __m68k_handle_int(Q40_IRQ_KEYBOARD, fp);
+ do_IRQ(Q40_IRQ_KEYBOARD, fp);
return;
}
-void q40_enable_irq(unsigned int irq)
+void q40_irq_enable(struct irq_data *data)
{
+ unsigned int irq = data->irq;
+
if (irq >= 5 && irq <= 15) {
mext_disabled--;
if (mext_disabled > 0)
- printk("q40_enable_irq : nested disable/enable\n");
+ printk("q40_irq_enable : nested disable/enable\n");
if (mext_disabled == 0)
master_outb(1, EXT_ENABLE_REG);
}
}
-void q40_disable_irq(unsigned int irq)
+void q40_irq_disable(struct irq_data *data)
{
+ unsigned int irq = data->irq;
+
/* disable ISA iqs : only do something if the driver has been
* verified to be Q40 "compatible" - right now IDE, NE2K
* Any driver should not attempt to sleep across disable_irq !!
@@ -319,13 +324,3 @@ void q40_disable_irq(unsigned int irq)
printk("disable_irq nesting count %d\n",mext_disabled);
}
}
-
-unsigned long q40_probe_irq_on(void)
-{
- printk("irq probing not working - reconfigure the driver to avoid this\n");
- return -1;
-}
-int q40_probe_irq_off(unsigned long irqs)
-{
- return -1;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 22:20:35 +0000