/* * SDK7786 FPGA IRQ Controller Support. * * Copyright (C) 2010 Matt Fleming * Copyright (C) 2010 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include <linux/irq.h> #include <mach/fpga.h> #include <mach/irq.h> enum { ATA_IRQ_BIT = 1, SPI_BUSY_BIT = 2, LIRQ5_BIT = 3, LIRQ6_BIT = 4, LIRQ7_BIT = 5, LIRQ8_BIT = 6, KEY_IRQ_BIT = 7, PEN_IRQ_BIT = 8, ETH_IRQ_BIT = 9, RTC_ALARM_BIT = 10, CRYSTAL_FAIL_BIT = 12, ETH_PME_BIT = 14, }; void __init sdk7786_init_irq(void) { unsigned int tmp; /* Enable priority encoding for all IRLs */ fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR); /* Clear FPGA interrupt status registers */ fpga_write_reg(0x0000, INTASR); fpga_write_reg(0x0000, INTBSR); /* Unmask FPGA interrupts */ tmp = fpga_read_reg(INTAMR); tmp &= ~(1 << ETH_IRQ_BIT); fpga_write_reg(tmp, INTAMR); plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK); plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK); }