redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

arm: omap: irq: remove rest of irq_banks usage

Browse source 
now we can finally remove the pointless irq_banks
array.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Felipe Balbi 2014-09-08 17:54:35 -07:00 committed by Tony Lindgren
parent 421b090c83
commit a88ab43083
1 changed files with 46 additions and 80 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

126
arch/arm/mach-omap2/irq.c
View file

@ -49,8 +49,8 @@
#define OMAP3_IRQ_BASE OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE)
#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* omap2/3 active interrupt offset */
#define ACTIVEIRQ_MASK 0x7f /* omap2/3 active interrupt bits */
#define INTCPS_NR_ILR_REGS 128
#define INTCPS_NR_MIR_REGS 3
#define INTCPS_NR_IRQS 96
/*
* OMAP2 has a number of different interrupt controllers, each interrupt
@ -58,15 +58,6 @@
* fairly consistent for each bank, but not all registers are implemented
* for each bank.. when in doubt, consult the TRM.
*/
static struct omap_irq_bank {
void __iomem *base_reg;
unsigned int nr_irqs;
} __attribute__ ((aligned(4))) irq_banks[] = {
{
/* MPU INTC */
.nr_irqs = 96,
},
};
static struct irq_domain *domain;
static void __iomem *omap_irq_base;
@ -78,7 +69,7 @@ struct omap3_intc_regs {
u32 protection;
u32 idle;
u32 threshold;
u32 ilr[INTCPS_NR_IRQS];
u32 ilr[INTCPS_NR_ILR_REGS];
u32 mir[INTCPS_NR_MIR_REGS];
};
@ -105,13 +96,14 @@ static void omap_mask_ack_irq(struct irq_data *d)
omap_ack_irq(d);
}
static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)
static void __init omap_irq_soft_reset(void)
{
unsigned long tmp;
tmp = intc_readl(INTC_REVISION) & 0xff;
pr_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);
omap_irq_base, tmp >> 4, tmp & 0xf, omap_nr_irqs);
tmp = intc_readl(INTC_SYSCONFIG);
tmp |= 1 << 1; /* soft reset */
@ -126,17 +118,12 @@ static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)
int omap_irq_pending(void)
{
int i;
int irq;
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 += 32)
if (intc_readl(INTC_PENDING_IRQ0 +
((irq >> 5) << 5)))
return 1;
}
for (irq = 0; irq < omap_nr_irqs; irq += 32)
if (intc_readl(INTC_PENDING_IRQ0 +
((irq >> 5) << 5)))
return 1;
return 0;
}
@ -163,9 +150,7 @@ omap_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num)
static void __init omap_init_irq(u32 base, int nr_irqs,
struct device_node *node)
{
unsigned long nr_of_irqs = 0;
unsigned int nr_banks = 0;
int i, j, irq_base;
int j, irq_base;
omap_irq_base = ioremap(base, SZ_4K);
if (WARN_ON(!omap_irq_base))
@ -180,31 +165,12 @@ static void __init omap_init_irq(u32 base, int nr_irqs,
}
domain = irq_domain_add_legacy(node, nr_irqs, irq_base, 0,
&irq_domain_simple_ops, NULL);
&irq_domain_simple_ops, NULL);
for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
struct omap_irq_bank *bank = irq_banks + i;
omap_irq_soft_reset();
bank->nr_irqs = nr_irqs;
/* Static mapping, never released */
bank->base_reg = ioremap(base, SZ_4K);
if (!bank->base_reg) {
pr_err("Could not ioremap irq bank%i\n", i);
continue;
}
omap_irq_bank_init_one(bank);
for (j = 0; j < bank->nr_irqs; j += 32)
omap_alloc_gc(bank->base_reg + j, j + irq_base, 32);
nr_of_irqs += bank->nr_irqs;
nr_banks++;
}
pr_info("Total of %ld interrupts on %d active controller%s\n",
nr_of_irqs, nr_banks, nr_banks > 1 ? "s" : "");
for (j = 0; j < omap_nr_irqs; j += 32)
omap_alloc_gc(omap_irq_base + j, j + irq_base, 32);
}
void __init omap2_init_irq(void)
@ -303,45 +269,45 @@ void __init omap_intc_of_init(void)
}
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX)
static struct omap3_intc_regs intc_context[ARRAY_SIZE(irq_banks)];
static struct omap3_intc_regs intc_context;
void omap_intc_save_context(void)
{
int ind = 0, i = 0;
for (ind = 0; ind < ARRAY_SIZE(irq_banks); ind++) {
intc_context[ind].sysconfig =
intc_readl(INTC_SYSCONFIG);
intc_context[ind].protection =
intc_readl(INTC_PROTECTION);
intc_context[ind].idle =
intc_readl(INTC_IDLE);
intc_context[ind].threshold =
intc_readl(INTC_THRESHOLD);
for (i = 0; i < INTCPS_NR_IRQS; i++)
intc_context[ind].ilr[i] =
intc_readl((INTC_ILR0 + 0x4 * i));
for (i = 0; i < INTCPS_NR_MIR_REGS; i++)
intc_context[ind].mir[i] =
intc_readl(INTC_MIR0 + (0x20 * i));
}
int i;
intc_context.sysconfig =
intc_readl(INTC_SYSCONFIG);
intc_context.protection =
intc_readl(INTC_PROTECTION);
intc_context.idle =
intc_readl(INTC_IDLE);
intc_context.threshold =
intc_readl(INTC_THRESHOLD);
for (i = 0; i < omap_nr_irqs; i++)
intc_context.ilr[i] =
intc_readl((INTC_ILR0 + 0x4 * i));
for (i = 0; i < INTCPS_NR_MIR_REGS; i++)
intc_context.mir[i] =
intc_readl(INTC_MIR0 + (0x20 * i));
}
void omap_intc_restore_context(void)
{
int ind = 0, i = 0;
int i;
for (ind = 0; ind < ARRAY_SIZE(irq_banks); ind++) {
intc_writel(INTC_SYSCONFIG, intc_context[ind].sysconfig);
intc_writel(INTC_PROTECTION, intc_context[ind].protection);
intc_writel(INTC_IDLE, intc_context[ind].idle);
intc_writel(INTC_THRESHOLD, intc_context[ind].threshold);
for (i = 0; i < INTCPS_NR_IRQS; i++)
intc_writel(INTC_ILR0 + 0x4 * i,
intc_context[ind].ilr[i]);
for (i = 0; i < INTCPS_NR_MIR_REGS; i++)
intc_writel(INTC_MIR0 + 0x20 * i,
intc_context[ind].mir[i]);
}
intc_writel(INTC_SYSCONFIG, intc_context.sysconfig);
intc_writel(INTC_PROTECTION, intc_context.protection);
intc_writel(INTC_IDLE, intc_context.idle);
intc_writel(INTC_THRESHOLD, intc_context.threshold);
for (i = 0; i < omap_nr_irqs; i++)
intc_writel(INTC_ILR0 + 0x4 * i,
intc_context.ilr[i]);
for (i = 0; i < INTCPS_NR_MIR_REGS; i++)
intc_writel(INTC_MIR0 + 0x20 * i,
intc_context.mir[i]);
/* MIRs are saved and restore with other PRCM registers */
}