1 files changed, 0 insertions, 91 deletions

diff --git a/arch/mips/momentum/ocelot_c/uart-irq.c b/arch/mips/momentum/ocelot_c/uart-irq.c
deleted file mode 100644
index de1a31ee52f3..000000000000
--- a/arch/mips/momentum/ocelot_c/uart-irq.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright 2002 Momentum Computer
- * Author: mdharm@momenco.com
- *
- * arch/mips/momentum/ocelot_c/uart-irq.c
- *     Interrupt routines for UARTs.  Interrupt numbers are assigned from
- *     80 to 81 (2 interrupt sources).
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include "ocelot_c_fpga.h"
-
-static inline int ls1bit8(unsigned int x)
-{
-        int b = 7, s;
-
-        s =  4; if (((unsigned char)(x << 4)) == 0) s = 0; b -= s; x <<= s;
-        s =  2; if (((unsigned char)(x << 2)) == 0) s = 0; b -= s; x <<= s;
-        s =  1; if (((unsigned char)(x << 1)) == 0) s = 0; b -= s;
-
-        return b;
-}
-
-/* mask off an interrupt -- 0 is enable, 1 is disable */
-static inline void mask_uart_irq(unsigned int irq)
-{
-        uint8_t value;
-
-        value = OCELOT_FPGA_READ(UART_INTMASK);
-        value |= 1 << (irq - 74);
-        OCELOT_FPGA_WRITE(value, UART_INTMASK);
-
-        /* read the value back to assure that it's really been written */
-        value = OCELOT_FPGA_READ(UART_INTMASK);
-}
-
-/* unmask an interrupt -- 0 is enable, 1 is disable */
-static inline void unmask_uart_irq(unsigned int irq)
-{
-        uint8_t value;
-
-        value = OCELOT_FPGA_READ(UART_INTMASK);
-        value &= ~(1 << (irq - 74));
-        OCELOT_FPGA_WRITE(value, UART_INTMASK);
-
-        /* read the value back to assure that it's really been written */
-        value = OCELOT_FPGA_READ(UART_INTMASK);
-}
-
-/*
- * Interrupt handler for interrupts coming from the FPGA chip.
- */
-void ll_uart_irq(void)
-{
-        unsigned int irq_src, irq_mask;
-
-        /* read the interrupt status registers */
-        irq_src = OCELOT_FPGA_READ(UART_INTSTAT);
-        irq_mask = OCELOT_FPGA_READ(UART_INTMASK);
-
-        /* mask for just the interrupts we want */
-        irq_src &= ~irq_mask;
-
-        do_IRQ(ls1bit8(irq_src) + 74);
-}
-
-struct irq_chip uart_irq_type = {
-        .name = "UART/FPGA",
-        .ack = mask_uart_irq,
-        .mask = mask_uart_irq,
-        .mask_ack = mask_uart_irq,
-        .unmask = unmask_uart_irq,
-};
-
-void uart_irq_init(void)
-{
-        set_irq_chip_and_handler(80, &uart_irq_type, handle_level_irq);
-        set_irq_chip_and_handler(81, &uart_irq_type, handle_level_irq);
-}