Commit | Line | Data |
---|---|---|
32351a28 | 1 | /* |
897cfcd8 | 2 | * Renesas Solutions Highlander R7785RP Support. |
32351a28 PM |
3 | * |
4 | * Copyright (C) 2002 Atom Create Engineering Co., Ltd. | |
03bbc0e6 | 5 | * Copyright (C) 2006 - 2008 Paul Mundt |
897cfcd8 | 6 | * Copyright (C) 2007 Magnus Damm |
32351a28 PM |
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> | |
897cfcd8 MD |
13 | #include <linux/irq.h> |
14 | #include <linux/io.h> | |
32351a28 PM |
15 | #include <asm/r7780rp.h> |
16 | ||
897cfcd8 MD |
17 | enum { |
18 | UNUSED = 0, | |
19 | ||
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20 | /* FPGA specific interrupt sources */ |
21 | CF, /* Compact Flash */ | |
22 | SMBUS, /* SMBUS */ | |
23 | TP, /* Touch panel */ | |
24 | RTC, /* RTC Alarm */ | |
25 | TH_ALERT, /* Temperature sensor */ | |
26 | AX88796, /* Ethernet controller */ | |
27 | ||
28 | /* external bus connector */ | |
29 | EXT0, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7, | |
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30 | }; |
31 | ||
32 | static struct intc_vect vectors[] __initdata = { | |
33 | INTC_IRQ(CF, IRQ_CF), | |
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34 | INTC_IRQ(SMBUS, IRQ_SMBUS), |
35 | INTC_IRQ(TP, IRQ_TP), | |
36 | INTC_IRQ(RTC, IRQ_RTC), | |
37 | INTC_IRQ(TH_ALERT, IRQ_TH_ALERT), | |
38 | ||
39 | INTC_IRQ(EXT0, IRQ_EXT0), INTC_IRQ(EXT1, IRQ_EXT1), | |
40 | INTC_IRQ(EXT2, IRQ_EXT2), INTC_IRQ(EXT3, IRQ_EXT3), | |
41 | ||
42 | INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5), | |
43 | INTC_IRQ(EXT6, IRQ_EXT6), INTC_IRQ(EXT7, IRQ_EXT7), | |
44 | ||
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45 | INTC_IRQ(AX88796, IRQ_AX88796), |
46 | }; | |
47 | ||
48 | static struct intc_mask_reg mask_registers[] __initdata = { | |
49 | { 0xa4000010, 0, 16, /* IRLMCR1 */ | |
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50 | { 0, 0, 0, 0, CF, AX88796, SMBUS, TP, |
51 | RTC, 0, TH_ALERT, 0, 0, 0, 0, 0 } }, | |
52 | { 0xa4000012, 0, 16, /* IRLMCR2 */ | |
53 | { 0, 0, 0, 0, 0, 0, 0, 0, | |
54 | EXT7, EXT6, EXT5, EXT4, EXT3, EXT2, EXT1, EXT0 } }, | |
897cfcd8 MD |
55 | }; |
56 | ||
57 | static unsigned char irl2irq[HL_NR_IRL] __initdata = { | |
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58 | 0, IRQ_CF, IRQ_EXT4, IRQ_EXT5, |
59 | IRQ_EXT6, IRQ_EXT7, IRQ_SMBUS, IRQ_TP, | |
60 | IRQ_RTC, IRQ_TH_ALERT, IRQ_AX88796, IRQ_EXT0, | |
61 | IRQ_EXT1, IRQ_EXT2, IRQ_EXT3, | |
897cfcd8 MD |
62 | }; |
63 | ||
64 | static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors, | |
03bbc0e6 | 65 | NULL, NULL, mask_registers, NULL, NULL); |
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66 | |
67 | unsigned char * __init highlander_init_irq_r7785rp(void) | |
32351a28 | 68 | { |
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69 | if ((ctrl_inw(0xa4000158) & 0xf000) != 0x1000) |
70 | return NULL; | |
71 | ||
72 | printk(KERN_INFO "Using r7785rp interrupt controller.\n"); | |
73 | ||
32351a28 PM |
74 | ctrl_outw(0x0000, PA_IRLSSR1); /* FPGA IRLSSR1(CF_CD clear) */ |
75 | ||
76 | /* Setup the FPGA IRL */ | |
77 | ctrl_outw(0x0000, PA_IRLPRA); /* FPGA IRLA */ | |
78 | ctrl_outw(0xe598, PA_IRLPRB); /* FPGA IRLB */ | |
79 | ctrl_outw(0x7060, PA_IRLPRC); /* FPGA IRLC */ | |
80 | ctrl_outw(0x0000, PA_IRLPRD); /* FPGA IRLD */ | |
81 | ctrl_outw(0x4321, PA_IRLPRE); /* FPGA IRLE */ | |
03bbc0e6 | 82 | ctrl_outw(0xdcba, PA_IRLPRF); /* FPGA IRLF */ |
32351a28 | 83 | |
897cfcd8 MD |
84 | register_intc_controller(&intc_desc); |
85 | return irl2irq; | |
32351a28 | 86 | } |