korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 21:38:32 +08:00
Code Issues Packages Projects Releases Wiki Activity

[PATCH] ARM: 2800/1: OMAP update 3/11: Move OMAP1 core code into mach-omap1 directory

Browse Source 
Patch from Tony Lindgren

This patch by Paul Mundt and other OMAP developers
moves OMAP1 specific IRQ, time, and FPGA code into
mach-omap1 directory.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Tony Lindgren 2005-07-10 19:58:09 +01:00 committed by Russell King
parent b288f75ffa
commit 3b59b6beb4
3 changed files with 38 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

0
arch/arm/mach-omap/fpga.c → arch/arm/mach-omap1/fpga.c
View File

17
arch/arm/mach-omap/irq.c → arch/arm/mach-omap1/irq.c
View File

@ -56,6 +56,7 @@
struct omap_irq_bank {
unsigned long base_reg;
unsigned long trigger_map;
unsigned long wake_enable;
};
static unsigned int irq_bank_count = 0;
@ -105,6 +106,19 @@ static void omap_mask_ack_irq(unsigned int irq)
omap_ack_irq(irq);
}
static int omap_wake_irq(unsigned int irq, unsigned int enable)
{
int bank = IRQ_BANK(irq);
if (enable)
irq_banks[bank].wake_enable |= IRQ_BIT(irq);
else
irq_banks[bank].wake_enable &= ~IRQ_BIT(irq);
return 0;
}
/*
* Allows tuning the IRQ type and priority
*
@ -145,7 +159,7 @@ static struct omap_irq_bank omap1510_irq_banks[] = {
static struct omap_irq_bank omap1610_irq_banks[] = {
{ .base_reg = OMAP_IH1_BASE, .trigger_map = 0xb3fefe8f },
{ .base_reg = OMAP_IH2_BASE, .trigger_map = 0xfdb7c1fd },
{ .base_reg = OMAP_IH2_BASE + 0x100, .trigger_map = 0xfffff7ff },
{ .base_reg = OMAP_IH2_BASE + 0x100, .trigger_map = 0xffffb7ff },
{ .base_reg = OMAP_IH2_BASE + 0x200, .trigger_map = 0xffffffff },
};
#endif
@ -154,6 +168,7 @@ static struct irqchip omap_irq_chip = {
.ack = omap_mask_ack_irq,
.mask = omap_mask_irq,
.unmask = omap_unmask_irq,
.wake = omap_wake_irq,
};
void __init omap_init_irq(void)

32
arch/arm/mach-omap/time.c → arch/arm/mach-omap1/time.c
View File

@ -1,5 +1,5 @@
/*
* linux/arch/arm/mach-omap/time.c
* linux/arch/arm/mach-omap1/time.c
*
* OMAP Timers
*
@ -58,17 +58,9 @@ struct sys_timer omap_timer;
* MPU timer
* ---------------------------------------------------------------------------
*/
#define OMAP_MPU_TIMER1_BASE (0xfffec500)
#define OMAP_MPU_TIMER2_BASE (0xfffec600)
#define OMAP_MPU_TIMER3_BASE (0xfffec700)
#define OMAP_MPU_TIMER_BASE OMAP_MPU_TIMER1_BASE
#define OMAP_MPU_TIMER_OFFSET 0x100
#define MPU_TIMER_FREE (1 << 6)
#define MPU_TIMER_CLOCK_ENABLE (1 << 5)
#define MPU_TIMER_AR (1 << 1)
#define MPU_TIMER_ST (1 << 0)
/* cycles to nsec conversions taken from arch/i386/kernel/timers/timer_tsc.c,
* converted to use kHz by Kevin Hilman */
/* convert from cycles(64bits) => nanoseconds (64bits)
@ -255,6 +247,13 @@ unsigned long long sched_clock(void)
#define OMAP_32K_TIMER_TCR 0x04
#define OMAP_32K_TICKS_PER_HZ (32768 / HZ)
#if (32768 % HZ) != 0
/* We cannot ignore modulo.
* Potential error can be as high as several percent.
*/
#define OMAP_32K_TICK_MODULO (32768 % HZ)
static unsigned modulo_count = 0; /* Counts 1/HZ units */
#endif
/*
* TRM says 1 / HZ = ( TVR + 1) / 32768, so TRV = (32768 / HZ) - 1
@ -331,6 +330,19 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id,
now = omap_32k_sync_timer_read();
while (now - omap_32k_last_tick >= OMAP_32K_TICKS_PER_HZ) {
#ifdef OMAP_32K_TICK_MODULO
/* Modulo addition may put omap_32k_last_tick ahead of now
* and cause unwanted repetition of the while loop.
*/
if (unlikely(now - omap_32k_last_tick == ~0))
break;
modulo_count += OMAP_32K_TICK_MODULO;
if (modulo_count > HZ) {
++omap_32k_last_tick;
modulo_count -= HZ;
}
#endif
omap_32k_last_tick += OMAP_32K_TICKS_PER_HZ;
timer_tick(regs);
}
@ -407,7 +419,7 @@ static __init void omap_init_32k_timer(void)
* Timer initialization
* ---------------------------------------------------------------------------
*/
void __init omap_timer_init(void)
static void __init omap_timer_init(void)
{
#if defined(CONFIG_OMAP_MPU_TIMER)
omap_init_mpu_timer();