1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Renesas Solutions Highlander R7780MP Support. 4 * 5 * Copyright (C) 2002 Atom Create Engineering Co., Ltd. 6 * Copyright (C) 2006 Paul Mundt 7 * Copyright (C) 2007 Magnus Damm 8 */ 9 #include <linux/init.h> 10 #include <linux/irq.h> 11 #include <linux/io.h> 12 #include <mach/highlander.h> 13 14 enum { 15 UNUSED = 0, 16 17 /* board specific interrupt sources */ 18 CF, /* Compact Flash */ 19 TP, /* Touch panel */ 20 SCIF1, /* FPGA SCIF1 */ 21 SCIF0, /* FPGA SCIF0 */ 22 SMBUS, /* SMBUS */ 23 RTC, /* RTC Alarm */ 24 AX88796, /* Ethernet controller */ 25 PSW, /* Push Switch */ 26 27 /* external bus connector */ 28 EXT1, EXT2, EXT4, EXT5, EXT6, 29 }; 30 31 static struct intc_vect vectors[] __initdata = { 32 INTC_IRQ(CF, IRQ_CF), 33 INTC_IRQ(TP, IRQ_TP), 34 INTC_IRQ(SCIF1, IRQ_SCIF1), 35 INTC_IRQ(SCIF0, IRQ_SCIF0), 36 INTC_IRQ(SMBUS, IRQ_SMBUS), 37 INTC_IRQ(RTC, IRQ_RTC), 38 INTC_IRQ(AX88796, IRQ_AX88796), 39 INTC_IRQ(PSW, IRQ_PSW), 40 41 INTC_IRQ(EXT1, IRQ_EXT1), INTC_IRQ(EXT2, IRQ_EXT2), 42 INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5), 43 INTC_IRQ(EXT6, IRQ_EXT6), 44 }; 45 46 static struct intc_mask_reg mask_registers[] __initdata = { 47 { 0xa4000000, 0, 16, /* IRLMSK */ 48 { SCIF0, SCIF1, RTC, 0, CF, 0, TP, SMBUS, 49 0, EXT6, EXT5, EXT4, EXT2, EXT1, PSW, AX88796 } }, 50 }; 51 52 static unsigned char irl2irq[HL_NR_IRL] __initdata = { 53 0, IRQ_CF, IRQ_TP, IRQ_SCIF1, 54 IRQ_SCIF0, IRQ_SMBUS, IRQ_RTC, IRQ_EXT6, 55 IRQ_EXT5, IRQ_EXT4, IRQ_EXT2, IRQ_EXT1, 56 0, IRQ_AX88796, IRQ_PSW, 57 }; 58 59 static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors, 60 NULL, mask_registers, NULL, NULL); 61 62 unsigned char * __init highlander_plat_irq_setup(void) 63 { 64 if ((__raw_readw(0xa4000700) & 0xf000) == 0x2000) { 65 printk(KERN_INFO "Using r7780mp interrupt controller.\n"); 66 register_intc_controller(&intc_desc); 67 return irl2irq; 68 } 69 70 return NULL; 71 } 72