1 // SPDX-License-Identifier: GPL-2.0+
2 
3 #include <linux/module.h>
4 #include <asm/hardware.h>	/* for register_parisc_driver() stuff */
5 #include <asm/parisc-device.h>
6 #include "ipmi_si.h"
7 
8 static bool parisc_registered;
9 
10 static int __init ipmi_parisc_probe(struct parisc_device *dev)
11 {
12 	struct si_sm_io io;
13 
14 	memset(&io, 0, sizeof(io));
15 
16 	io.si_type	= SI_KCS;
17 	io.addr_source	= SI_DEVICETREE;
18 	io.addr_space	= IPMI_MEM_ADDR_SPACE;
19 	io.addr_data	= dev->hpa.start;
20 	io.regsize	= 1;
21 	io.regspacing	= 1;
22 	io.regshift	= 0;
23 	io.irq		= 0; /* no interrupt */
24 	io.irq_setup	= NULL;
25 	io.dev		= &dev->dev;
26 
27 	dev_dbg(&dev->dev, "addr 0x%lx\n", io.addr_data);
28 
29 	return ipmi_si_add_smi(&io);
30 }
31 
32 static void __exit ipmi_parisc_remove(struct parisc_device *dev)
33 {
34 	ipmi_si_remove_by_dev(&dev->dev);
35 }
36 
37 static const struct parisc_device_id ipmi_parisc_tbl[] __initconst = {
38 	{ HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
39 	{ 0, }
40 };
41 
42 MODULE_DEVICE_TABLE(parisc, ipmi_parisc_tbl);
43 
44 static struct parisc_driver ipmi_parisc_driver __refdata = {
45 	.name =		"ipmi",
46 	.id_table =	ipmi_parisc_tbl,
47 	.probe =	ipmi_parisc_probe,
48 	.remove =	__exit_p(ipmi_parisc_remove),
49 };
50 
51 void ipmi_si_parisc_init(void)
52 {
53 	register_parisc_driver(&ipmi_parisc_driver);
54 	parisc_registered = true;
55 }
56 
57 void ipmi_si_parisc_shutdown(void)
58 {
59 	if (parisc_registered)
60 		unregister_parisc_driver(&ipmi_parisc_driver);
61 }
62