| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
| 17 | enum { |
| 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 | |
| 34 | static 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 | |
| 49 | static 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 | |
| 55 | static 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 | |
| 62 | static DECLARE_INTC_DESC(intc_desc, "r7780mp", vectors, |
| 63 | NULL, mask_registers, NULL, NULL); |
| 64 | |
| 65 | unsigned 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 | } |