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-rw-r--r--drivers/irqchip/irq-bcm7120-l2.c55
1 files changed, 51 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index 6a6285897df1..3ba5cc780fcb 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kconfig.h>
+#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_irq.h>
@@ -120,10 +121,15 @@ static int bcm7120_l2_intc_init_one(struct device_node *dn,
/* For multiple parent IRQs with multiple words, this looks like:
* <irq0_w0 irq0_w1 irq1_w0 irq1_w1 ...>
*/
- for (idx = 0; idx < data->n_words; idx++)
- data->irq_map_mask[idx] |=
- be32_to_cpup(data->map_mask_prop +
- irq * data->n_words + idx);
+ for (idx = 0; idx < data->n_words; idx++) {
+ if (data->map_mask_prop) {
+ data->irq_map_mask[idx] |=
+ be32_to_cpup(data->map_mask_prop +
+ irq * data->n_words + idx);
+ } else {
+ data->irq_map_mask[idx] = 0xffffffff;
+ }
+ }
irq_set_handler_data(parent_irq, data);
irq_set_chained_handler(parent_irq, bcm7120_l2_intc_irq_handle);
@@ -165,6 +171,37 @@ static int __init bcm7120_l2_intc_iomap_7120(struct device_node *dn,
return 0;
}
+static int __init bcm7120_l2_intc_iomap_3380(struct device_node *dn,
+ struct bcm7120_l2_intc_data *data)
+{
+ unsigned int gc_idx;
+
+ for (gc_idx = 0; gc_idx < MAX_WORDS; gc_idx++) {
+ unsigned int map_idx = gc_idx * 2;
+ void __iomem *en = of_iomap(dn, map_idx + 0);
+ void __iomem *stat = of_iomap(dn, map_idx + 1);
+ void __iomem *base = min(en, stat);
+
+ data->map_base[map_idx + 0] = en;
+ data->map_base[map_idx + 1] = stat;
+
+ if (!base)
+ break;
+
+ data->pair_base[gc_idx] = base;
+ data->en_offset[gc_idx] = en - base;
+ data->stat_offset[gc_idx] = stat - base;
+ }
+
+ if (!gc_idx) {
+ pr_err("unable to map registers\n");
+ return -EINVAL;
+ }
+
+ data->n_words = gc_idx;
+ return 0;
+}
+
int __init bcm7120_l2_intc_probe(struct device_node *dn,
struct device_node *parent,
int (*iomap_regs_fn)(struct device_node *,
@@ -279,5 +316,15 @@ int __init bcm7120_l2_intc_probe_7120(struct device_node *dn,
"BCM7120 L2");
}
+int __init bcm7120_l2_intc_probe_3380(struct device_node *dn,
+ struct device_node *parent)
+{
+ return bcm7120_l2_intc_probe(dn, parent, bcm7120_l2_intc_iomap_3380,
+ "BCM3380 L2");
+}
+
IRQCHIP_DECLARE(bcm7120_l2_intc, "brcm,bcm7120-l2-intc",
bcm7120_l2_intc_probe_7120);
+
+IRQCHIP_DECLARE(bcm3380_l2_intc, "brcm,bcm3380-l2-intc",
+ bcm7120_l2_intc_probe_3380);