aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index e22146546add..e117049fb754 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -9,6 +9,7 @@
9 * source@mvista.com 9 * source@mvista.com
10 * 10 *
11 * Copyright 2002 MontaVista Software Inc. 11 * Copyright 2002 MontaVista Software Inc.
12 * Copyright 2006 IBM Corp., Christian Krafft <krafft@de.ibm.com>
12 * 13 *
13 * This program is free software; you can redistribute it and/or modify it 14 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the 15 * under the terms of the GNU General Public License as published by the
@@ -64,6 +65,11 @@
64#include <linux/string.h> 65#include <linux/string.h>
65#include <linux/ctype.h> 66#include <linux/ctype.h>
66 67
68#ifdef CONFIG_PPC_OF
69#include <asm/of_device.h>
70#include <asm/of_platform.h>
71#endif
72
67#define PFX "ipmi_si: " 73#define PFX "ipmi_si: "
68 74
69/* Measure times between events in the driver. */ 75/* Measure times between events in the driver. */
@@ -1006,6 +1012,7 @@ static DEFINE_MUTEX(smi_infos_lock);
1006static int smi_num; /* Used to sequence the SMIs */ 1012static int smi_num; /* Used to sequence the SMIs */
1007 1013
1008#define DEFAULT_REGSPACING 1 1014#define DEFAULT_REGSPACING 1
1015#define DEFAULT_REGSIZE 1
1009 1016
1010static int si_trydefaults = 1; 1017static int si_trydefaults = 1;
1011static char *si_type[SI_MAX_PARMS]; 1018static char *si_type[SI_MAX_PARMS];
@@ -2172,6 +2179,99 @@ static struct pci_driver ipmi_pci_driver = {
2172#endif /* CONFIG_PCI */ 2179#endif /* CONFIG_PCI */
2173 2180
2174 2181
2182#ifdef CONFIG_PPC_OF
2183static int __devinit ipmi_of_probe(struct of_device *dev,
2184 const struct of_device_id *match)
2185{
2186 struct smi_info *info;
2187 struct resource resource;
2188 const int *regsize, *regspacing, *regshift;
2189 struct device_node *np = dev->node;
2190 int ret;
2191 int proplen;
2192
2193 dev_info(&dev->dev, PFX "probing via device tree\n");
2194
2195 ret = of_address_to_resource(np, 0, &resource);
2196 if (ret) {
2197 dev_warn(&dev->dev, PFX "invalid address from OF\n");
2198 return ret;
2199 }
2200
2201 regsize = get_property(np, "reg-size", &proplen);
2202 if (regsize && proplen != 4) {
2203 dev_warn(&dev->dev, PFX "invalid regsize from OF\n");
2204 return -EINVAL;
2205 }
2206
2207 regspacing = get_property(np, "reg-spacing", &proplen);
2208 if (regspacing && proplen != 4) {
2209 dev_warn(&dev->dev, PFX "invalid regspacing from OF\n");
2210 return -EINVAL;
2211 }
2212
2213 regshift = get_property(np, "reg-shift", &proplen);
2214 if (regshift && proplen != 4) {
2215 dev_warn(&dev->dev, PFX "invalid regshift from OF\n");
2216 return -EINVAL;
2217 }
2218
2219 info = kzalloc(sizeof(*info), GFP_KERNEL);
2220
2221 if (!info) {
2222 dev_err(&dev->dev,
2223 PFX "could not allocate memory for OF probe\n");
2224 return -ENOMEM;
2225 }
2226
2227 info->si_type = (enum si_type) match->data;
2228 info->addr_source = "device-tree";
2229 info->io_setup = mem_setup;
2230 info->irq_setup = std_irq_setup;
2231
2232 info->io.addr_type = IPMI_MEM_ADDR_SPACE;
2233 info->io.addr_data = resource.start;
2234
2235 info->io.regsize = regsize ? *regsize : DEFAULT_REGSIZE;
2236 info->io.regspacing = regspacing ? *regspacing : DEFAULT_REGSPACING;
2237 info->io.regshift = regshift ? *regshift : 0;
2238
2239 info->irq = irq_of_parse_and_map(dev->node, 0);
2240 info->dev = &dev->dev;
2241
2242 dev_dbg(&dev->dev, "addr 0x%lx regsize %ld spacing %ld irq %x\n",
2243 info->io.addr_data, info->io.regsize, info->io.regspacing,
2244 info->irq);
2245
2246 dev->dev.driver_data = (void*) info;
2247
2248 return try_smi_init(info);
2249}
2250
2251static int __devexit ipmi_of_remove(struct of_device *dev)
2252{
2253 cleanup_one_si(dev->dev.driver_data);
2254 return 0;
2255}
2256
2257static struct of_device_id ipmi_match[] =
2258{
2259 { .type = "ipmi", .compatible = "ipmi-kcs", .data = (void *)(unsigned long) SI_KCS },
2260 { .type = "ipmi", .compatible = "ipmi-smic", .data = (void *)(unsigned long) SI_SMIC },
2261 { .type = "ipmi", .compatible = "ipmi-bt", .data = (void *)(unsigned long) SI_BT },
2262 {},
2263};
2264
2265static struct of_platform_driver ipmi_of_platform_driver =
2266{
2267 .name = "ipmi",
2268 .match_table = ipmi_match,
2269 .probe = ipmi_of_probe,
2270 .remove = __devexit_p(ipmi_of_remove),
2271};
2272#endif /* CONFIG_PPC_OF */
2273
2274
2175static int try_get_dev_id(struct smi_info *smi_info) 2275static int try_get_dev_id(struct smi_info *smi_info)
2176{ 2276{
2177 unsigned char msg[2]; 2277 unsigned char msg[2];
@@ -2801,6 +2901,10 @@ static __devinit int init_ipmi_si(void)
2801 } 2901 }
2802#endif 2902#endif
2803 2903
2904#ifdef CONFIG_PPC_OF
2905 of_register_platform_driver(&ipmi_of_platform_driver);
2906#endif
2907
2804 if (si_trydefaults) { 2908 if (si_trydefaults) {
2805 mutex_lock(&smi_infos_lock); 2909 mutex_lock(&smi_infos_lock);
2806 if (list_empty(&smi_infos)) { 2910 if (list_empty(&smi_infos)) {
@@ -2898,6 +3002,10 @@ static __exit void cleanup_ipmi_si(void)
2898 pci_unregister_driver(&ipmi_pci_driver); 3002 pci_unregister_driver(&ipmi_pci_driver);
2899#endif 3003#endif
2900 3004
3005#ifdef CONFIG_PPC_OF
3006 of_unregister_platform_driver(&ipmi_of_platform_driver);
3007#endif
3008
2901 mutex_lock(&smi_infos_lock); 3009 mutex_lock(&smi_infos_lock);
2902 list_for_each_entry_safe(e, tmp_e, &smi_infos, link) 3010 list_for_each_entry_safe(e, tmp_e, &smi_infos, link)
2903 cleanup_one_si(e); 3011 cleanup_one_si(e);