#include <asm/exception.h>
#include <mach/common.h>
-#define CP_INTC_CTRL 0x04
-#define CP_INTC_HOST_CTRL 0x0C
-#define CP_INTC_GLOBAL_ENABLE 0x10
-#define CP_INTC_SYS_STAT_IDX_CLR 0x24
-#define CP_INTC_SYS_ENABLE_IDX_SET 0x28
-#define CP_INTC_SYS_ENABLE_IDX_CLR 0x2C
-#define CP_INTC_HOST_ENABLE_IDX_SET 0x34
-#define CP_INTC_HOST_ENABLE_IDX_CLR 0x38
-#define CP_INTC_PRIO_IDX 0x80
-#define CP_INTC_SYS_STAT_CLR(n) (0x0280 + (n << 2))
-#define CP_INTC_SYS_ENABLE_CLR(n) (0x0380 + (n << 2))
-#define CP_INTC_CHAN_MAP(n) (0x0400 + (n << 2))
-#define CP_INTC_SYS_POLARITY(n) (0x0D00 + (n << 2))
-#define CP_INTC_SYS_TYPE(n) (0x0D80 + (n << 2))
-#define CP_INTC_HOST_ENABLE(n) (0x1500 + (n << 2))
-
+#define DAVINCI_CP_INTC_CTRL 0x04
+#define DAVINCI_CP_INTC_HOST_CTRL 0x0C
+#define DAVINCI_CP_INTC_GLOBAL_ENABLE 0x10
+#define DAVINCI_CP_INTC_SYS_STAT_IDX_CLR 0x24
+#define DAVINCI_CP_INTC_SYS_ENABLE_IDX_SET 0x28
+#define DAVINCI_CP_INTC_SYS_ENABLE_IDX_CLR 0x2C
+#define DAVINCI_CP_INTC_HOST_ENABLE_IDX_SET 0x34
+#define DAVINCI_CP_INTC_HOST_ENABLE_IDX_CLR 0x38
+#define DAVINCI_CP_INTC_PRIO_IDX 0x80
+#define DAVINCI_CP_INTC_SYS_STAT_CLR(n) (0x0280 + (n << 2))
+#define DAVINCI_CP_INTC_SYS_ENABLE_CLR(n) (0x0380 + (n << 2))
+#define DAVINCI_CP_INTC_CHAN_MAP(n) (0x0400 + (n << 2))
+#define DAVINCI_CP_INTC_SYS_POLARITY(n) (0x0D00 + (n << 2))
+#define DAVINCI_CP_INTC_SYS_TYPE(n) (0x0D80 + (n << 2))
+#define DAVINCI_CP_INTC_HOST_ENABLE(n) (0x1500 + (n << 2))
#define DAVINCI_CP_INTC_PRI_INDX_MASK GENMASK(9, 0)
#define DAVINCI_CP_INTC_GPIR_NONE BIT(31)
-static void __iomem *davinci_intc_base;
+static void __iomem *davinci_cp_intc_base;
+static struct irq_domain *davinci_cp_intc_irq_domain;
-static inline unsigned int cp_intc_read(unsigned offset)
+static inline unsigned int davinci_cp_intc_read(unsigned int offset)
{
- return __raw_readl(davinci_intc_base + offset);
+ return __raw_readl(davinci_cp_intc_base + offset);
}
-static inline void cp_intc_write(unsigned long value, unsigned offset)
+static inline void davinci_cp_intc_write(unsigned long value,
+ unsigned int offset)
{
- __raw_writel(value, davinci_intc_base + offset);
+ __raw_writel(value, davinci_cp_intc_base + offset);
}
-static void cp_intc_ack_irq(struct irq_data *d)
+static void davinci_cp_intc_ack_irq(struct irq_data *d)
{
- cp_intc_write(d->hwirq, CP_INTC_SYS_STAT_IDX_CLR);
+ davinci_cp_intc_write(d->hwirq, DAVINCI_CP_INTC_SYS_STAT_IDX_CLR);
}
/* Disable interrupt */
-static void cp_intc_mask_irq(struct irq_data *d)
+static void davinci_cp_intc_mask_irq(struct irq_data *d)
{
/* XXX don't know why we need to disable nIRQ here... */
- cp_intc_write(1, CP_INTC_HOST_ENABLE_IDX_CLR);
- cp_intc_write(d->hwirq, CP_INTC_SYS_ENABLE_IDX_CLR);
- cp_intc_write(1, CP_INTC_HOST_ENABLE_IDX_SET);
+ davinci_cp_intc_write(1, DAVINCI_CP_INTC_HOST_ENABLE_IDX_CLR);
+ davinci_cp_intc_write(d->hwirq, DAVINCI_CP_INTC_SYS_ENABLE_IDX_CLR);
+ davinci_cp_intc_write(1, DAVINCI_CP_INTC_HOST_ENABLE_IDX_SET);
}
/* Enable interrupt */
-static void cp_intc_unmask_irq(struct irq_data *d)
+static void davinci_cp_intc_unmask_irq(struct irq_data *d)
{
- cp_intc_write(d->hwirq, CP_INTC_SYS_ENABLE_IDX_SET);
+ davinci_cp_intc_write(d->hwirq, DAVINCI_CP_INTC_SYS_ENABLE_IDX_SET);
}
-static int cp_intc_set_irq_type(struct irq_data *d, unsigned int flow_type)
+static int davinci_cp_intc_set_irq_type(struct irq_data *d,
+ unsigned int flow_type)
{
unsigned reg = BIT_WORD(d->hwirq);
unsigned mask = BIT_MASK(d->hwirq);
- unsigned polarity = cp_intc_read(CP_INTC_SYS_POLARITY(reg));
- unsigned type = cp_intc_read(CP_INTC_SYS_TYPE(reg));
+ unsigned polarity = davinci_cp_intc_read(
+ DAVINCI_CP_INTC_SYS_POLARITY(reg));
+ unsigned type = davinci_cp_intc_read(
+ DAVINCI_CP_INTC_SYS_TYPE(reg));
switch (flow_type) {
case IRQ_TYPE_EDGE_RISING:
return -EINVAL;
}
- cp_intc_write(polarity, CP_INTC_SYS_POLARITY(reg));
- cp_intc_write(type, CP_INTC_SYS_TYPE(reg));
+ davinci_cp_intc_write(polarity, DAVINCI_CP_INTC_SYS_POLARITY(reg));
+ davinci_cp_intc_write(type, DAVINCI_CP_INTC_SYS_TYPE(reg));
return 0;
}
-static struct irq_chip cp_intc_irq_chip = {
+static struct irq_chip davinci_cp_intc_irq_chip = {
.name = "cp_intc",
- .irq_ack = cp_intc_ack_irq,
- .irq_mask = cp_intc_mask_irq,
- .irq_unmask = cp_intc_unmask_irq,
- .irq_set_type = cp_intc_set_irq_type,
+ .irq_ack = davinci_cp_intc_ack_irq,
+ .irq_mask = davinci_cp_intc_mask_irq,
+ .irq_unmask = davinci_cp_intc_unmask_irq,
+ .irq_set_type = davinci_cp_intc_set_irq_type,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
-static struct irq_domain *cp_intc_domain;
-
static asmlinkage void __exception_irq_entry
-cp_intc_handle_irq(struct pt_regs *regs)
+davinci_cp_intc_handle_irq(struct pt_regs *regs)
{
int gpir, irqnr, none;
* indicates a spurious irq.
*/
- gpir = cp_intc_read(CP_INTC_PRIO_IDX);
+ gpir = davinci_cp_intc_read(DAVINCI_CP_INTC_PRIO_IDX);
irqnr = gpir & DAVINCI_CP_INTC_PRI_INDX_MASK;
none = gpir & DAVINCI_CP_INTC_GPIR_NONE;
return;
}
- handle_domain_irq(cp_intc_domain, irqnr, regs);
+ handle_domain_irq(davinci_cp_intc_irq_domain, irqnr, regs);
}
-static int cp_intc_host_map(struct irq_domain *h, unsigned int virq,
+static int davinci_cp_intc_host_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
pr_debug("cp_intc_host_map(%d, 0x%lx)\n", virq, hw);
- irq_set_chip(virq, &cp_intc_irq_chip);
+ irq_set_chip(virq, &davinci_cp_intc_irq_chip);
irq_set_probe(virq);
irq_set_handler(virq, handle_edge_irq);
return 0;
}
-static const struct irq_domain_ops cp_intc_host_ops = {
- .map = cp_intc_host_map,
+static const struct irq_domain_ops davinci_cp_intc_irq_domain_ops = {
+ .map = davinci_cp_intc_host_map,
.xlate = irq_domain_xlate_onetwocell,
};
-static int __init cp_intc_of_init(struct device_node *node,
- struct device_node *parent)
+static int __init davinci_cp_intc_of_init(struct device_node *node,
+ struct device_node *parent)
{
u32 num_irq = davinci_soc_info.intc_irq_num;
u8 *irq_prio = davinci_soc_info.intc_irq_prios;
int i, irq_base;
if (node) {
- davinci_intc_base = of_iomap(node, 0);
+ davinci_cp_intc_base = of_iomap(node, 0);
if (of_property_read_u32(node, "ti,intc-size", &num_irq))
pr_warn("unable to get intc-size, default to %d\n",
num_irq);
} else {
- davinci_intc_base = ioremap(davinci_soc_info.intc_base, SZ_8K);
+ davinci_cp_intc_base = ioremap(davinci_soc_info.intc_base, SZ_8K);
}
- if (WARN_ON(!davinci_intc_base))
+ if (WARN_ON(!davinci_cp_intc_base))
return -EINVAL;
- cp_intc_write(0, CP_INTC_GLOBAL_ENABLE);
+ davinci_cp_intc_write(0, DAVINCI_CP_INTC_GLOBAL_ENABLE);
/* Disable all host interrupts */
- cp_intc_write(0, CP_INTC_HOST_ENABLE(0));
+ davinci_cp_intc_write(0, DAVINCI_CP_INTC_HOST_ENABLE(0));
/* Disable system interrupts */
for (i = 0; i < num_reg; i++)
- cp_intc_write(~0, CP_INTC_SYS_ENABLE_CLR(i));
+ davinci_cp_intc_write(~0, DAVINCI_CP_INTC_SYS_ENABLE_CLR(i));
/* Set to normal mode, no nesting, no priority hold */
- cp_intc_write(0, CP_INTC_CTRL);
- cp_intc_write(0, CP_INTC_HOST_CTRL);
+ davinci_cp_intc_write(0, DAVINCI_CP_INTC_CTRL);
+ davinci_cp_intc_write(0, DAVINCI_CP_INTC_HOST_CTRL);
/* Clear system interrupt status */
for (i = 0; i < num_reg; i++)
- cp_intc_write(~0, CP_INTC_SYS_STAT_CLR(i));
+ davinci_cp_intc_write(~0, DAVINCI_CP_INTC_SYS_STAT_CLR(i));
/* Enable nIRQ (what about nFIQ?) */
- cp_intc_write(1, CP_INTC_HOST_ENABLE_IDX_SET);
+ davinci_cp_intc_write(1, DAVINCI_CP_INTC_HOST_ENABLE_IDX_SET);
/*
* Priority is determined by host channel: lower channel number has
val |= irq_prio[k] << 24;
}
- cp_intc_write(val, CP_INTC_CHAN_MAP(i));
+ davinci_cp_intc_write(val, DAVINCI_CP_INTC_CHAN_MAP(i));
}
} else {
/*
* are mapped to nIRQ.
*/
for (i = 0; i < num_reg; i++)
- cp_intc_write(0x0f0f0f0f, CP_INTC_CHAN_MAP(i));
+ davinci_cp_intc_write(0x0f0f0f0f,
+ DAVINCI_CP_INTC_CHAN_MAP(i));
}
irq_base = irq_alloc_descs(-1, 0, num_irq, 0);
}
/* create a legacy host */
- cp_intc_domain = irq_domain_add_legacy(node, num_irq,
- irq_base, 0, &cp_intc_host_ops, NULL);
+ davinci_cp_intc_irq_domain = irq_domain_add_legacy(
+ node, num_irq, irq_base, 0,
+ &davinci_cp_intc_irq_domain_ops, NULL);
- if (!cp_intc_domain) {
+ if (!davinci_cp_intc_irq_domain) {
pr_err("cp_intc: failed to allocate irq host!\n");
return -EINVAL;
}
- set_handle_irq(cp_intc_handle_irq);
+ set_handle_irq(davinci_cp_intc_handle_irq);
/* Enable global interrupt */
- cp_intc_write(1, CP_INTC_GLOBAL_ENABLE);
+ davinci_cp_intc_write(1, DAVINCI_CP_INTC_GLOBAL_ENABLE);
return 0;
}
-void __init cp_intc_init(void)
+void __init davinci_cp_intc_init(void)
{
- cp_intc_of_init(NULL, NULL);
+ davinci_cp_intc_of_init(NULL, NULL);
}
-IRQCHIP_DECLARE(cp_intc, "ti,cp-intc", cp_intc_of_init);
+IRQCHIP_DECLARE(cp_intc, "ti,cp-intc", davinci_cp_intc_of_init);
projects / platform / kernel / linux-rpi.git / commitdiff