예제 #1
0
파일: irq.c 프로젝트: fars/LTE-modem-kernel
static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)
{
	unsigned long tmp;

	tmp = intc_bank_read_reg(bank, INTC_REVISION) & 0xff;
	printk(KERN_INFO "IRQ: Found an INTC at 0x%p "
			 "(revision %ld.%ld) with %d interrupts\n",
			 bank->base_reg, tmp >> 4, tmp & 0xf, bank->nr_irqs);

	tmp = intc_bank_read_reg(bank, INTC_SYSCONFIG);
	tmp |= 1 << 1;	/* soft reset */
	intc_bank_write_reg(tmp, bank, INTC_SYSCONFIG);

	while (!(intc_bank_read_reg(bank, INTC_SYSSTATUS) & 0x1))
		/* Wait for reset to complete */;

	/* Enable autoidle */
	intc_bank_write_reg(1 << 0, bank, INTC_SYSCONFIG);

        /* Enable protection mode */
        __raw_writel(1 << 0, bank->base_reg + INTC_PROTECTION);
	/* Disable all interrupts by masking them off.  They will be re-enabled when
	   a handler is registered for them. */
	for (tmp = 0; tmp < bank->nr_irqs; tmp += IRQ_BITS_PER_REG)
	{
	    intc_bank_write_reg(0xffffffff, bank,  INTC_MIR_SET0 + tmp);
	}
        /* Set the global enable */
        omap_global_enable();
}
예제 #2
0
파일: irq.c 프로젝트: fars/LTE-modem-kernel
static void omap_global_enable(void)
{
	unsigned long tmp;
	tmp = intc_bank_read_reg(&irq_banks[0], INTC_SICR);
	tmp &= ~(1 << 6);
	intc_bank_write_reg(tmp, &irq_banks[0], INTC_SICR);
}
예제 #3
0
static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)
{
	unsigned long tmp;

	tmp = intc_bank_read_reg(bank, INTC_REVISION) & 0xff;
	printk(KERN_INFO "IRQ: Found an INTC at 0x%p "
			 "(revision %ld.%ld) with %d interrupts\n",
			 bank->base_reg, tmp >> 4, tmp & 0xf, bank->nr_irqs);

	tmp = intc_bank_read_reg(bank, INTC_SYSCONFIG);
	tmp |= 1 << 1;	/* soft reset */
	intc_bank_write_reg(tmp, bank, INTC_SYSCONFIG);

	while (!(intc_bank_read_reg(bank, INTC_SYSSTATUS) & 0x1))
		/* Wait for reset to complete */;

	/* Enable autoidle */
	intc_bank_write_reg(1 << 0, bank, INTC_SYSCONFIG);
}
예제 #4
0
파일: irq.c 프로젝트: NookieDevs/Quickie
void omap3_intc_autoidle(int enable)
{
	u32 read_val;

	read_val = intc_bank_read_reg(&irq_banks[0], INTC_SYSCONFIG);
	if (!enable)
		read_val &= ~0x1;
	else
		read_val |= 0x1;
	intc_bank_write_reg(read_val, &irq_banks[0], INTC_SYSCONFIG);
}
예제 #5
0
/*
 * On 34xx we can get occasional spurious interrupts if the ack from
 * an interrupt handler does not get posted before we unmask. Warn about
 * the interrupt handlers that need to flush posted writes.
 */
static int omap_check_spurious(unsigned int irq)
{
	u32 sir, spurious;

	sir = intc_bank_read_reg(&irq_banks[0], INTC_SIR);
	spurious = sir >> 6;

	if (spurious > 1) {
		printk(KERN_WARNING "Spurious irq %i: 0x%08x, please flush "
					"posted write for irq %i\n",
					irq, sir, previous_irq);
		return spurious;
	}

	return 0;
}
예제 #6
0
파일: irq.c 프로젝트: fars/LTE-modem-kernel
static void omap_ack_irq(unsigned int irq)
{
    unsigned long tmp;

    tmp = intc_bank_read_reg(&irq_banks[0], (INTC_ILR_REG0 + (irq * 0x04)));
    if(tmp & 0x01)
    {
        /* FIQ ACK*/
	intc_bank_write_reg(0x02, &irq_banks[0], INTC_CONTROL);
    }
    else
    {
        /*IRQ ACK*/
	intc_bank_write_reg(0x01, &irq_banks[0], INTC_CONTROL);
    }
}
예제 #7
0
int omap_irq_pending(void)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
		struct omap_irq_bank *bank = irq_banks + i;
		int irq;

		for (irq = 0; irq < bank->nr_irqs; irq += IRQ_BITS_PER_REG) {
			int offset = irq & (~(IRQ_BITS_PER_REG - 1));

			if (intc_bank_read_reg(bank, (INTC_PENDING_IRQ0 +
						      offset)))
				return 1;
		}
	}

	return 0;
}
예제 #8
0
void omap3_intc_save_context(void)
{
	int ind = 0, i = 0;
	for (ind = 0; ind < ARRAY_SIZE(irq_banks); ind++) {
		struct omap_irq_bank *bank = irq_banks + ind;
		intc_context[ind].sysconfig =
			intc_bank_read_reg(bank, INTC_SYSCONFIG);
		intc_context[ind].protection =
			intc_bank_read_reg(bank, INTC_PROTECTION);
		intc_context[ind].idle =
			intc_bank_read_reg(bank, INTC_IDLE);
		intc_context[ind].threshold =
			intc_bank_read_reg(bank, INTC_THRESHOLD);
		for (i = 0; i < INTCPS_NR_IRQS; i++)
			intc_context[ind].ilr[i] =
				intc_bank_read_reg(bank, (0x100 + 0x4*i));
		for (i = 0; i < INTCPS_NR_MIR_REGS; i++)
			intc_context[ind].mir[i] =
				intc_bank_read_reg(&irq_banks[0], INTC_MIR0 +
				(0x20 * i));
	}
}