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Diffstat (limited to 'ANDROID_3.4.5/arch/arm/plat-versatile/fpga-irq.c')
-rw-r--r--ANDROID_3.4.5/arch/arm/plat-versatile/fpga-irq.c72
1 files changed, 0 insertions, 72 deletions
diff --git a/ANDROID_3.4.5/arch/arm/plat-versatile/fpga-irq.c b/ANDROID_3.4.5/arch/arm/plat-versatile/fpga-irq.c
deleted file mode 100644
index f0cc8e19..00000000
--- a/ANDROID_3.4.5/arch/arm/plat-versatile/fpga-irq.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Support for Versatile FPGA-based IRQ controllers
- */
-#include <linux/irq.h>
-#include <linux/io.h>
-
-#include <asm/mach/irq.h>
-#include <plat/fpga-irq.h>
-
-#define IRQ_STATUS 0x00
-#define IRQ_RAW_STATUS 0x04
-#define IRQ_ENABLE_SET 0x08
-#define IRQ_ENABLE_CLEAR 0x0c
-
-static void fpga_irq_mask(struct irq_data *d)
-{
- struct fpga_irq_data *f = irq_data_get_irq_chip_data(d);
- u32 mask = 1 << (d->irq - f->irq_start);
-
- writel(mask, f->base + IRQ_ENABLE_CLEAR);
-}
-
-static void fpga_irq_unmask(struct irq_data *d)
-{
- struct fpga_irq_data *f = irq_data_get_irq_chip_data(d);
- u32 mask = 1 << (d->irq - f->irq_start);
-
- writel(mask, f->base + IRQ_ENABLE_SET);
-}
-
-static void fpga_irq_handle(unsigned int irq, struct irq_desc *desc)
-{
- struct fpga_irq_data *f = irq_desc_get_handler_data(desc);
- u32 status = readl(f->base + IRQ_STATUS);
-
- if (status == 0) {
- do_bad_IRQ(irq, desc);
- return;
- }
-
- do {
- irq = ffs(status) - 1;
- status &= ~(1 << irq);
-
- generic_handle_irq(irq + f->irq_start);
- } while (status);
-}
-
-void __init fpga_irq_init(int parent_irq, u32 valid, struct fpga_irq_data *f)
-{
- unsigned int i;
-
- f->chip.irq_ack = fpga_irq_mask;
- f->chip.irq_mask = fpga_irq_mask;
- f->chip.irq_unmask = fpga_irq_unmask;
-
- if (parent_irq != -1) {
- irq_set_handler_data(parent_irq, f);
- irq_set_chained_handler(parent_irq, fpga_irq_handle);
- }
-
- for (i = 0; i < 32; i++) {
- if (valid & (1 << i)) {
- unsigned int irq = f->irq_start + i;
-
- irq_set_chip_data(irq, f);
- irq_set_chip_and_handler(irq, &f->chip,
- handle_level_irq);
- set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
- }
- }
-}