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Diffstat (limited to 'arch/arm/mach-lh7a40x/irq-lpd7a40x.c')
-rw-r--r--arch/arm/mach-lh7a40x/irq-lpd7a40x.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/arm/mach-lh7a40x/irq-lpd7a40x.c b/arch/arm/mach-lh7a40x/irq-lpd7a40x.c
deleted file mode 100644
index 1bfdcddcb93e..000000000000
--- a/arch/arm/mach-lh7a40x/irq-lpd7a40x.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* arch/arm/mach-lh7a40x/irq-lpd7a40x.c
- *
- * Copyright (C) 2004 Coastal Environmental Systems
- * Copyright (C) 2004 Logic Product Development
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-#include <mach/irqs.h>
-
-#include "common.h"
-
-static void lh7a40x_ack_cpld_irq(struct irq_data *d)
-{
- /* CPLD doesn't have ack capability */
-}
-
-static void lh7a40x_mask_cpld_irq(struct irq_data *d)
-{
- switch (d->irq) {
- case IRQ_LPD7A40X_ETH_INT:
- CPLD_INTERRUPTS = CPLD_INTERRUPTS | 0x4;
- break;
- case IRQ_LPD7A400_TS:
- CPLD_INTERRUPTS = CPLD_INTERRUPTS | 0x8;
- break;
- }
-}
-
-static void lh7a40x_unmask_cpld_irq(struct irq_data *d)
-{
- switch (d->irq) {
- case IRQ_LPD7A40X_ETH_INT:
- CPLD_INTERRUPTS = CPLD_INTERRUPTS & ~ 0x4;
- break;
- case IRQ_LPD7A400_TS:
- CPLD_INTERRUPTS = CPLD_INTERRUPTS & ~ 0x8;
- break;
- }
-}
-
-static struct irq_chip lh7a40x_cpld_chip = {
- .name = "CPLD",
- .irq_ack = lh7a40x_ack_cpld_irq,
- .irq_mask = lh7a40x_mask_cpld_irq,
- .irq_unmask = lh7a40x_unmask_cpld_irq,
-};
-
-static void lh7a40x_cpld_handler (unsigned int irq, struct irq_desc *desc)
-{
- unsigned int mask = CPLD_INTERRUPTS;
-
- desc->irq_data.chip->ack (irq);
-
- if ((mask & 0x1) == 0) /* WLAN */
- generic_handle_irq(IRQ_LPD7A40X_ETH_INT);
-
- if ((mask & 0x2) == 0) /* Touch */
- generic_handle_irq(IRQ_LPD7A400_TS);
-
- desc->irq_data.chip->unmask (irq); /* Level-triggered need this */
-}
-
-
- /* IRQ initialization */
-
-void __init lh7a40x_init_board_irq (void)
-{
- int irq;
-
- /* Rev A (v2.8): PF0, PF1, PF2, and PF3 are available IRQs.
- PF7 supports the CPLD.
- Rev B (v3.4): PF0, PF1, and PF2 are available IRQs.
- PF3 supports the CPLD.
- (Some) LPD7A404 prerelease boards report a version
- number of 0x16, but we force an override since the
- hardware is of the newer variety.
- */
-
- unsigned char cpld_version = CPLD_REVISION;
- int pinCPLD;
-
-#if defined CONFIG_MACH_LPD7A404
- cpld_version = 0x34; /* Override, for now */
-#endif
- pinCPLD = (cpld_version == 0x28) ? 7 : 3;
-
- /* First, configure user controlled GPIOF interrupts */
-
- GPIO_PFDD &= ~0x0f; /* PF0-3 are inputs */
- GPIO_INTTYPE1 &= ~0x0f; /* PF0-3 are level triggered */
- GPIO_INTTYPE2 &= ~0x0f; /* PF0-3 are active low */
- barrier ();
- GPIO_GPIOFINTEN |= 0x0f; /* Enable PF0, PF1, PF2, and PF3 IRQs */
-
- /* Then, configure CPLD interrupt */
-
- CPLD_INTERRUPTS = 0x0c; /* Disable all CPLD interrupts */
- GPIO_PFDD &= ~(1 << pinCPLD); /* Make input */
- GPIO_INTTYPE1 |= (1 << pinCPLD); /* Edge triggered */
- GPIO_INTTYPE2 &= ~(1 << pinCPLD); /* Active low */
- barrier ();
- GPIO_GPIOFINTEN |= (1 << pinCPLD); /* Enable */
-
- /* Cascade CPLD interrupts */
-
- for (irq = IRQ_BOARD_START;
- irq < IRQ_BOARD_START + NR_IRQ_BOARD; ++irq) {
- set_irq_chip (irq, &lh7a40x_cpld_chip);
- set_irq_handler (irq, handle_edge_irq);
- set_irq_flags (irq, IRQF_VALID);
- }
-
- set_irq_chained_handler ((cpld_version == 0x28)
- ? IRQ_CPLD_V28
- : IRQ_CPLD_V34,
- lh7a40x_cpld_handler);
-}