jenna
/
kernel_samsung_sm7125
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sh: SE7206 build fixes.

Browse Source 
A number of API changes happened underneath the 7206 patches, update
for everything that broke.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
tirimbino
Paul Mundt 19 years ago
parent f36af3fd37
commit 710ee0cc45
9 changed files with 54 additions and 153 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 44
      arch/sh/boards/se/7206/irq.c
  2. 3
      arch/sh/boards/se/7206/setup.c
  3. 2
      arch/sh/kernel/sys_sh.c
  4. 63
      arch/sh/kernel/timers/timer-cmt.c
  5. 62
      arch/sh/kernel/timers/timer-mtu2.c
  6. 12
      arch/sh/kernel/traps.c
  7. 6
      include/asm-sh/cpu-sh2/timer.h
  8. 13
      include/asm-sh/se7206.h
  9. 2
      include/asm-sh/timer.h

44
arch/sh/boards/se/7206/irq.c
Unescape View File

@ -6,12 +6,10 @@
* Hitachi SolutionEngine Support.
*
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <asm/se7206.h>
#define INTSTS0 0x31800000
@ -20,9 +18,6 @@
#define INTMSK1 0x31800006
#define INTSEL 0x31800008
/* shutdown is same as "disable" */
#define shutdown_se7206_irq disable_se7206_irq
static void disable_se7206_irq(unsigned int irq)
{
unsigned short val;
@ -84,18 +79,7 @@ static void enable_se7206_irq(unsigned int irq)
ctrl_outw(msk1, INTMSK1);
}
static unsigned int startup_se7206_irq(unsigned int irq)
{
enable_se7206_irq(irq);
return 0; /* never anything pending */
}
static void ack_se7206_irq(unsigned int irq)
{
disable_se7206_irq(irq);
}
static void end_se7206_irq(unsigned int irq)
static void eoi_se7206_irq(unsigned int irq)
{
unsigned short sts0,sts1;
@ -121,20 +105,19 @@ static void end_se7206_irq(unsigned int irq)
ctrl_outw(sts1, INTSTS1);
}
static struct hw_interrupt_type se7206_irq_type = {
.typename = "SE7206 FPGA-IRQ",
.startup = startup_se7206_irq,
.shutdown = shutdown_se7206_irq,
.enable = enable_se7206_irq,
.disable = disable_se7206_irq,
.ack = ack_se7206_irq,
.end = end_se7206_irq,
static struct irq_chip se7206_irq_chip __read_mostly = {
.name = "SE7206-FPGA-IRQ",
.mask = disable_se7206_irq,
.unmask = enable_se7206_irq,
.mask_ack = disable_se7206_irq,
.eoi = eoi_se7206_irq,
};
static void make_se7206_irq(unsigned int irq)
{
disable_irq_nosync(irq);
irq_desc[irq].handler = &se7206_irq_type;
set_irq_chip_and_handler_name(irq, &se7206_irq_chip,
handle_level_irq, "level");
disable_se7206_irq(irq);
}
@ -154,8 +137,3 @@ void __init init_se7206_IRQ(void)
/* IRQ0=LAN, IRQ1=ATA, IRQ3=SLT,PCM */
ctrl_outw(0x0001,INTSEL);
}
int se7206_irq_demux(int irq)
{
return irq;
}

3
arch/sh/boards/se/7206/setup.c
Unescape View File

@ -10,8 +10,8 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/se7206.h>
#include <asm/io.h>
#include <asm/machvec.h>
static struct resource smc91x_resources[] = {
@ -72,7 +72,6 @@ struct sh_machine_vector mv_se __initmv = {
.mv_outsl = se7206_outsl,
.mv_init_irq = init_se7206_IRQ,
.mv_irq_demux = se7206_irq_demux,
#ifdef CONFIG_HEARTBEAT
.mv_heartbeat = heartbeat_se,
#endif

2
arch/sh/kernel/sys_sh.c
Unescape View File

@ -50,6 +50,7 @@ unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
EXPORT_SYMBOL(shm_align_mask);
#ifdef CONFIG_MMU
/*
* To avoid cache aliases, we map the shared page with same color.
*/
@ -135,6 +136,7 @@ full_search:
addr = COLOUR_ALIGN(addr, pgoff);
}
}
#endif /* CONFIG_MMU */
static inline long
do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,

63
arch/sh/kernel/timers/timer-cmt.c
Unescape View File

@ -96,8 +96,7 @@ static unsigned long cmt_timer_get_offset(void)
return count;
}
static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id)
{
unsigned long timer_status;
@ -114,7 +113,7 @@ static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id,
* locally disabled. -arca
*/
write_seqlock(&xtime_lock);
handle_timer_tick(regs);
handle_timer_tick();
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
@ -123,62 +122,10 @@ static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id,
static struct irqaction cmt_irq = {
.name = "timer",
.handler = cmt_timer_interrupt,
.flags = SA_INTERRUPT,
.flags = IRQF_DISABLED,
.mask = CPU_MASK_NONE,
};
/*
* Hah! We'll see if this works (switching from usecs to nsecs).
*/
static unsigned long cmt_timer_get_frequency(void)
{
u32 freq;
struct timespec ts1, ts2;
unsigned long diff_nsec;
unsigned long factor;
/* Setup the timer: We don't want to generate interrupts, just
* have it count down at its natural rate.
*/
ctrl_outw(ctrl_inw(CMT_CMSTR) & ~0x01, CMT_CMSTR);
ctrl_outw(CMT_CMCSR_CALIB, CMT_CMCSR_0);
ctrl_outw(0xffff, CMT_CMCOR_0);
ctrl_outw(0xffff, CMT_CMCNT_0);
rtc_sh_get_time(&ts2);
do {
rtc_sh_get_time(&ts1);
} while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
/* actually start the timer */
ctrl_outw(ctrl_inw(CMT_CMSTR) | 0x01, CMT_CMSTR);
do {
rtc_sh_get_time(&ts2);
} while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
freq = 0xffff - ctrl_inw(CMT_CMCNT_0);
if (ts2.tv_nsec < ts1.tv_nsec) {
ts2.tv_nsec += 1000000000;
ts2.tv_sec--;
}
diff_nsec = (ts2.tv_sec - ts1.tv_sec) * 1000000000 + (ts2.tv_nsec - ts1.tv_nsec);
/* this should work well if the RTC has a precision of n Hz, where
* n is an integer. I don't think we have to worry about the other
* cases. */
factor = (1000000000 + diff_nsec/2) / diff_nsec;
if (factor * diff_nsec > 1100000000 ||
factor * diff_nsec < 900000000)
panic("weird RTC (diff_nsec %ld)", diff_nsec);
return freq * factor;
}
static void cmt_clk_init(struct clk *clk)
{
u8 divisor = CMT_CMCSR_INIT & 0x3;
@ -245,12 +192,12 @@ struct sys_timer_ops cmt_timer_ops = {
.init = cmt_timer_init,
.start = cmt_timer_start,
.stop = cmt_timer_stop,
.get_frequency = cmt_timer_get_frequency,
#ifndef CONFIG_GENERIC_TIME
.get_offset = cmt_timer_get_offset,
#endif
};
struct sys_timer cmt_timer = {
.name = "cmt",
.ops = &cmt_timer_ops,
};

62
arch/sh/kernel/timers/timer-mtu2.c
Unescape View File

@ -98,8 +98,7 @@ static unsigned long mtu2_timer_get_offset(void)
return count;
}
static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id)
{
unsigned long timer_status;
@ -110,7 +109,7 @@ static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id,
/* Do timer tick */
write_seqlock(&xtime_lock);
handle_timer_tick(regs);
handle_timer_tick();
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
@ -119,62 +118,10 @@ static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id,
static struct irqaction mtu2_irq = {
.name = "timer",
.handler = mtu2_timer_interrupt,
.flags = SA_INTERRUPT,
.flags = IRQF_DISABLED,
.mask = CPU_MASK_NONE,
};
/*
* Hah! We'll see if this works (switching from usecs to nsecs).
*/
static unsigned long mtu2_timer_get_frequency(void)
{
u32 freq;
struct timespec ts1, ts2;
unsigned long diff_nsec;
unsigned long factor;
/* Setup the timer: We don't want to generate interrupts, just
* have it count down at its natural rate.
*/
ctrl_outb(ctrl_inb(MTU2_TSTR) & ~MTU2_TSTR_CST1, MTU2_TSTR);
ctrl_outb(MTU2_TCR_CALIB, MTU2_TCR_1);
ctrl_outb(ctrl_inb(MTU2_TIER_1) & ~MTU2_TIER_TGIEA, MTU2_TIER_1);
ctrl_outw(0, MTU2_TCNT_1);
rtc_get_time(&ts2);
do {
rtc_get_time(&ts1);
} while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
/* actually start the timer */
ctrl_outw(ctrl_inw(CMT_CMSTR) | 0x01, CMT_CMSTR);
do {
rtc_get_time(&ts2);
} while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
freq = ctrl_inw(MTU2_TCNT_0);
if (ts2.tv_nsec < ts1.tv_nsec) {
ts2.tv_nsec += 1000000000;
ts2.tv_sec--;
}
diff_nsec = (ts2.tv_sec - ts1.tv_sec) * 1000000000 + (ts2.tv_nsec - ts1.tv_nsec);
/* this should work well if the RTC has a precision of n Hz, where
* n is an integer. I don't think we have to worry about the other
* cases. */
factor = (1000000000 + diff_nsec/2) / diff_nsec;
if (factor * diff_nsec > 1100000000 ||
factor * diff_nsec < 900000000)
panic("weird RTC (diff_nsec %ld)", diff_nsec);
return freq * factor;
}
static unsigned int divisors[] = { 1, 4, 16, 64, 1, 1, 256 };
static void mtu2_clk_init(struct clk *clk)
@ -250,8 +197,9 @@ struct sys_timer_ops mtu2_timer_ops = {
.init = mtu2_timer_init,
.start = mtu2_timer_start,
.stop = mtu2_timer_stop,
.get_frequency = mtu2_timer_get_frequency,
#ifndef CONFIG_GENERIC_TIME
.get_offset = mtu2_timer_get_offset,
#endif
};
struct sys_timer mtu2_timer = {

12
arch/sh/kernel/traps.c
Unescape View File

@ -107,8 +107,6 @@ static inline void die_if_kernel(const char *str, struct pt_regs *regs,
die(str, regs, err);
}
static int handle_unaligned_notify_count = 10;
/*
* try and fix up kernelspace address errors
* - userspace errors just cause EFAULT to be returned, resulting in SEGV
@ -347,6 +345,13 @@ static inline int handle_unaligned_delayslot(struct pt_regs *regs)
#define SH_PC_8BIT_OFFSET(instr) ((((signed char)(instr))*2) + 4)
#define SH_PC_12BIT_OFFSET(instr) ((((signed short)(instr<<4))>>3) + 4)
/*
* XXX: SH-2A needs this too, but it needs an overhaul thanks to mixed 32-bit
* opcodes..
*/
#ifndef CONFIG_CPU_SH2A
static int handle_unaligned_notify_count = 10;
static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
{
u_int rm;
@ -483,6 +488,7 @@ static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
regs->pc += 2;
return ret;
}
#endif /* CONFIG_CPU_SH2A */
#ifdef CONFIG_CPU_HAS_SR_RB
#define lookup_exception_vector(x) \
@ -501,8 +507,10 @@ asmlinkage void do_address_error(struct pt_regs *regs,
{
unsigned long error_code = 0;
mm_segment_t oldfs;
#ifndef CONFIG_CPU_SH2A
u16 instruction;
int tmp;
#endif
/* Intentional ifdef */
#ifdef CONFIG_CPU_HAS_SR_RB

6
include/asm-sh/cpu-sh2/timer.h
Unescape View File

@ -0,0 +1,6 @@
#ifndef __ASM_CPU_SH2_TIMER_H
#define __ASM_CPU_SH2_TIMER_H
/* Nothing needed yet */
#endif /* __ASM_CPU_SH2_TIMER_H */

13
include/asm-sh/se7206.h
Unescape View File

@ -0,0 +1,13 @@
#ifndef __ASM_SH_SE7206_H
#define __ASM_SH_SE7206_H
#define PA_SMSC 0x30000000
#define PA_MRSHPC 0x34000000
#define PA_LED 0x31400000
void init_se7206_IRQ(void);
#define __IO_PREFIX se7206
#include <asm/io_generic.h>
#endif /* __ASM_SH_SE7206_H */

2
include/asm-sh/timer.h
Unescape View File

@ -22,7 +22,7 @@ struct sys_timer {
#define TICK_SIZE (tick_nsec / 1000)
extern struct sys_timer tmu_timer;
extern struct sys_timer tmu_timer, cmt_timer, mtu2_timer;
extern struct sys_timer *sys_timer;
#ifndef CONFIG_GENERIC_TIME

Write Preview
Loading…
Cancel
Save