1/* 2 * Renesas Solutions Highlander R7780MP Support. 3 * 4 * Copyright (C) 2002 Atom Create Engineering Co., Ltd. 5 * Copyright (C) 2006 Paul Mundt 6 * Copyright (C) 2007 Magnus Damm 7 * 8 * This file is subject to the terms and conditions of the GNU General Public 9 * License. See the file "COPYING" in the main directory of this archive 10 * for more details. 11 */ 12#include <linux/init.h> 13#include <linux/irq.h> 14#include <linux/io.h> 15#include <mach/highlander.h> 16 17enum { 18 UNUSED = 0, 19 20 /* board specific interrupt sources */ 21 CF, /* Compact Flash */ 22 TP, /* Touch panel */ 23 SCIF1, /* FPGA SCIF1 */ 24 SCIF0, /* FPGA SCIF0 */ 25 SMBUS, /* SMBUS */ 26 RTC, /* RTC Alarm */ 27 AX88796, /* Ethernet controller */ 28 PSW, /* Push Switch */ 29 30 /* external bus connector */ 31 EXT1, EXT2, EXT4, EXT5, EXT6, 32}; 33 34static struct intc_vect vectors[] __initdata = { 35 INTC_IRQ(CF, IRQ_CF), 36 INTC_IRQ(TP, IRQ_TP), 37 INTC_IRQ(SCIF1, IRQ_SCIF1), 38 INTC_IRQ(SCIF0, IRQ_SCIF0), 39 INTC_IRQ(SMBUS, IRQ_SMBUS), 40 INTC_IRQ(RTC, IRQ_RTC), 41 INTC_IRQ(AX88796, IRQ_AX88796), 42 INTC_IRQ(PSW, IRQ_PSW), 43 44 INTC_IRQ(EXT1, IRQ_EXT1), INTC_IRQ(EXT2, IRQ_EXT2), 45 INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5), 46 INTC_IRQ(EXT6, IRQ_EXT6), 47}; 48 49static struct intc_mask_reg mask_registers[] __initdata = { 50 { 0xa4000000, 0, 16, /* IRLMSK */ 51 { SCIF0, SCIF1, RTC, 0, CF, 0, TP, SMBUS, 52 0, EXT6, EXT5, EXT4, EXT2, EXT1, PSW, AX88796 } }, 53}; 54 55static unsigned char irl2irq[HL_NR_IRL] __initdata = { 56 0, IRQ_CF, IRQ_TP, IRQ_SCIF1, 57 IRQ_SCIF0, IRQ_SMBUS, IRQ_RTC, IRQ_EXT6, 58 IRQ_EXT5, IRQ_EXT4, IRQ_EXT2, IRQ_EXT1, 59 0, IRQ_AX88796, IRQ_PSW, 60}; 61 62static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors, 63 NULL, mask_registers, NULL, NULL); 64 65unsigned char * __init highlander_plat_irq_setup(void) 66{ 67 if ((__raw_readw(0xa4000700) & 0xf000) == 0x2000) { 68 printk(KERN_INFO "Using r7780mp interrupt controller.\n"); 69 register_intc_controller(&intc_desc); 70 return irl2irq; 71 } 72 73 return NULL; 74} 75