1/*
 2 * Renesas Solutions Highlander R7785RP Support.
 3 *
 4 * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
 5 * Copyright (C) 2006 - 2008  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	/* 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,
30};
31
32static struct intc_vect vectors[] __initdata = {
33	INTC_IRQ(CF, IRQ_CF),
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
45	INTC_IRQ(AX88796, IRQ_AX88796),
46};
47
48static struct intc_mask_reg mask_registers[] __initdata = {
49	{ 0xa4000010, 0, 16, /* IRLMCR1 */
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 } },
55};
56
57static unsigned char irl2irq[HL_NR_IRL] __initdata = {
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,
62};
63
64static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors,
65			 NULL, mask_registers, NULL, NULL);
66
67unsigned char * __init highlander_plat_irq_setup(void)
68{
69	if ((__raw_readw(0xa4000158) & 0xf000) != 0x1000)
70		return NULL;
71
72	printk(KERN_INFO "Using r7785rp interrupt controller.\n");
73
74	__raw_writew(0x0000, PA_IRLSSR1);	/* FPGA IRLSSR1(CF_CD clear) */
75
76	/* Setup the FPGA IRL */
77	__raw_writew(0x0000, PA_IRLPRA);	/* FPGA IRLA */
78	__raw_writew(0xe598, PA_IRLPRB);	/* FPGA IRLB */
79	__raw_writew(0x7060, PA_IRLPRC);	/* FPGA IRLC */
80	__raw_writew(0x0000, PA_IRLPRD);	/* FPGA IRLD */
81	__raw_writew(0x4321, PA_IRLPRE);	/* FPGA IRLE */
82	__raw_writew(0xdcba, PA_IRLPRF);	/* FPGA IRLF */
83
84	register_intc_controller(&intc_desc);
85	return irl2irq;
86}

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Renesas Solutions Highlander R7785RP Support.
 4 *
 5 * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
 6 * Copyright (C) 2006 - 2008  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
14enum {
15	UNUSED = 0,
16
17	/* FPGA specific interrupt sources */
18	CF,		/* Compact Flash */
19	SMBUS,		/* SMBUS */
20	TP,		/* Touch panel */
21	RTC,		/* RTC Alarm */
22	TH_ALERT,	/* Temperature sensor */
23	AX88796,	/* Ethernet controller */
24
25	/* external bus connector */
26	EXT0, EXT1, EXT2, EXT3, EXT4, EXT5, EXT6, EXT7,
27};
28
29static struct intc_vect vectors[] __initdata = {
30	INTC_IRQ(CF, IRQ_CF),
31	INTC_IRQ(SMBUS, IRQ_SMBUS),
32	INTC_IRQ(TP, IRQ_TP),
33	INTC_IRQ(RTC, IRQ_RTC),
34	INTC_IRQ(TH_ALERT, IRQ_TH_ALERT),
35
36	INTC_IRQ(EXT0, IRQ_EXT0), INTC_IRQ(EXT1, IRQ_EXT1),
37	INTC_IRQ(EXT2, IRQ_EXT2), INTC_IRQ(EXT3, IRQ_EXT3),
38
39	INTC_IRQ(EXT4, IRQ_EXT4), INTC_IRQ(EXT5, IRQ_EXT5),
40	INTC_IRQ(EXT6, IRQ_EXT6), INTC_IRQ(EXT7, IRQ_EXT7),
41
42	INTC_IRQ(AX88796, IRQ_AX88796),
43};
44
45static struct intc_mask_reg mask_registers[] __initdata = {
46	{ 0xa4000010, 0, 16, /* IRLMCR1 */
47	  { 0, 0, 0, 0, CF, AX88796, SMBUS, TP,
48	    RTC, 0, TH_ALERT, 0, 0, 0, 0, 0 } },
49	{ 0xa4000012, 0, 16, /* IRLMCR2 */
50	  { 0, 0, 0, 0, 0, 0, 0, 0,
51	    EXT7, EXT6, EXT5, EXT4, EXT3, EXT2, EXT1, EXT0 } },
52};
53
54static unsigned char irl2irq[HL_NR_IRL] __initdata = {
55	0, IRQ_CF, IRQ_EXT4, IRQ_EXT5,
56	IRQ_EXT6, IRQ_EXT7, IRQ_SMBUS, IRQ_TP,
57	IRQ_RTC, IRQ_TH_ALERT, IRQ_AX88796, IRQ_EXT0,
58	IRQ_EXT1, IRQ_EXT2, IRQ_EXT3,
59};
60
61static DECLARE_INTC_DESC(intc_desc, "r7785rp", vectors,
62			 NULL, mask_registers, NULL, NULL);
63
64unsigned char * __init highlander_plat_irq_setup(void)
65{
66	if ((__raw_readw(0xa4000158) & 0xf000) != 0x1000)
67		return NULL;
68
69	printk(KERN_INFO "Using r7785rp interrupt controller.\n");
70
71	__raw_writew(0x0000, PA_IRLSSR1);	/* FPGA IRLSSR1(CF_CD clear) */
72
73	/* Setup the FPGA IRL */
74	__raw_writew(0x0000, PA_IRLPRA);	/* FPGA IRLA */
75	__raw_writew(0xe598, PA_IRLPRB);	/* FPGA IRLB */
76	__raw_writew(0x7060, PA_IRLPRC);	/* FPGA IRLC */
77	__raw_writew(0x0000, PA_IRLPRD);	/* FPGA IRLD */
78	__raw_writew(0x4321, PA_IRLPRE);	/* FPGA IRLE */
79	__raw_writew(0xdcba, PA_IRLPRF);	/* FPGA IRLF */
80
81	register_intc_controller(&intc_desc);
82	return irl2irq;
83}