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authorDavid S. Miller <davem@davemloft.net>2008-08-27 06:38:42 -0400
committerDavid S. Miller <davem@davemloft.net>2008-08-29 05:15:11 -0400
commit104364810ff5b0844a2183fbca989f70e86d486b (patch)
treee7aa24484aefae8ad6ba00d9e0f52ee5bfb384f3 /drivers/sbus/sbus.c
parent33c4655c00e6af3ec4023f2cafd63dd4a42de49b (diff)
sparc: Remove SBUS layer resource and irq handling.
All the drivers use OF device objects now for this information. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/sbus/sbus.c')
-rw-r--r--drivers/sbus/sbus.c124
1 files changed, 1 insertions, 123 deletions
diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c
index 08f4667188d2..89eb922a6acd 100644
--- a/drivers/sbus/sbus.c
+++ b/drivers/sbus/sbus.c
@@ -51,38 +51,11 @@ static void __init fill_sbus_device_iommu(struct sbus_dev *sdev)
51static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev) 51static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev)
52{ 52{
53 struct dev_archdata *sd; 53 struct dev_archdata *sd;
54 unsigned long base; 54 int err;
55 const void *pval;
56 int len, err;
57 55
58 sdev->prom_node = dp->node; 56 sdev->prom_node = dp->node;
59 strcpy(sdev->prom_name, dp->name); 57 strcpy(sdev->prom_name, dp->name);
60 58
61 pval = of_get_property(dp, "reg", &len);
62 sdev->num_registers = 0;
63 if (pval) {
64 memcpy(sdev->reg_addrs, pval, len);
65
66 sdev->num_registers =
67 len / sizeof(struct linux_prom_registers);
68
69 base = (unsigned long) sdev->reg_addrs[0].phys_addr;
70
71 /* Compute the slot number. */
72 if (base >= SUN_SBUS_BVADDR && sparc_cpu_model == sun4m)
73 sdev->slot = sbus_dev_slot(base);
74 else
75 sdev->slot = sdev->reg_addrs[0].which_io;
76 }
77
78 pval = of_get_property(dp, "ranges", &len);
79 sdev->num_device_ranges = 0;
80 if (pval) {
81 memcpy(sdev->device_ranges, pval, len);
82 sdev->num_device_ranges =
83 len / sizeof(struct linux_prom_ranges);
84 }
85
86 sd = &sdev->ofdev.dev.archdata; 59 sd = &sdev->ofdev.dev.archdata;
87 sd->prom_node = dp; 60 sd->prom_node = dp;
88 sd->op = &sdev->ofdev; 61 sd->op = &sdev->ofdev;
@@ -105,97 +78,6 @@ static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sde
105 fill_sbus_device_iommu(sdev); 78 fill_sbus_device_iommu(sdev);
106} 79}
107 80
108static void __init sbus_bus_ranges_init(struct device_node *dp, struct sbus_bus *sbus)
109{
110 const void *pval;
111 int len;
112
113 pval = of_get_property(dp, "ranges", &len);
114 sbus->num_sbus_ranges = 0;
115 if (pval) {
116 memcpy(sbus->sbus_ranges, pval, len);
117 sbus->num_sbus_ranges =
118 len / sizeof(struct linux_prom_ranges);
119
120 sbus_arch_bus_ranges_init(dp->parent, sbus);
121 }
122}
123
124static void __init __apply_ranges_to_regs(struct linux_prom_ranges *ranges,
125 int num_ranges,
126 struct linux_prom_registers *regs,
127 int num_regs)
128{
129 if (num_ranges) {
130 int regnum;
131
132 for (regnum = 0; regnum < num_regs; regnum++) {
133 int rngnum;
134
135 for (rngnum = 0; rngnum < num_ranges; rngnum++) {
136 if (regs[regnum].which_io == ranges[rngnum].ot_child_space)
137 break;
138 }
139 if (rngnum == num_ranges) {
140 /* We used to flag this as an error. Actually
141 * some devices do not report the regs as we expect.
142 * For example, see SUNW,pln device. In that case
143 * the reg property is in a format internal to that
144 * node, ie. it is not in the SBUS register space
145 * per se. -DaveM
146 */
147 return;
148 }
149 regs[regnum].which_io = ranges[rngnum].ot_parent_space;
150 regs[regnum].phys_addr -= ranges[rngnum].ot_child_base;
151 regs[regnum].phys_addr += ranges[rngnum].ot_parent_base;
152 }
153 }
154}
155
156static void __init __fixup_regs_sdev(struct sbus_dev *sdev)
157{
158 if (sdev->num_registers != 0) {
159 struct sbus_dev *parent = sdev->parent;
160 int i;
161
162 while (parent != NULL) {
163 __apply_ranges_to_regs(parent->device_ranges,
164 parent->num_device_ranges,
165 sdev->reg_addrs,
166 sdev->num_registers);
167
168 parent = parent->parent;
169 }
170
171 __apply_ranges_to_regs(sdev->bus->sbus_ranges,
172 sdev->bus->num_sbus_ranges,
173 sdev->reg_addrs,
174 sdev->num_registers);
175
176 for (i = 0; i < sdev->num_registers; i++) {
177 struct resource *res = &sdev->resource[i];
178
179 res->start = sdev->reg_addrs[i].phys_addr;
180 res->end = (res->start +
181 (unsigned long)sdev->reg_addrs[i].reg_size - 1UL);
182 res->flags = IORESOURCE_IO |
183 (sdev->reg_addrs[i].which_io & 0xff);
184 }
185 }
186}
187
188static void __init sbus_fixup_all_regs(struct sbus_dev *first_sdev)
189{
190 struct sbus_dev *sdev;
191
192 for (sdev = first_sdev; sdev; sdev = sdev->next) {
193 if (sdev->child)
194 sbus_fixup_all_regs(sdev->child);
195 __fixup_regs_sdev(sdev);
196 }
197}
198
199/* We preserve the "probe order" of these bus and device lists to give 81/* We preserve the "probe order" of these bus and device lists to give
200 * the same ordering as the old code. 82 * the same ordering as the old code.
201 */ 83 */
@@ -263,8 +145,6 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus)
263 145
264 strcpy(sbus->prom_name, dp->name); 146 strcpy(sbus->prom_name, dp->name);
265 147
266 sbus_bus_ranges_init(dp, sbus);
267
268 sbus->ofdev.node = dp; 148 sbus->ofdev.node = dp;
269 sbus->ofdev.dev.parent = NULL; 149 sbus->ofdev.dev.parent = NULL;
270 sbus->ofdev.dev.bus = &sbus_bus_type; 150 sbus->ofdev.dev.bus = &sbus_bus_type;
@@ -295,8 +175,6 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus)
295 } 175 }
296 dev_dp = dev_dp->sibling; 176 dev_dp = dev_dp->sibling;
297 } 177 }
298
299 sbus_fixup_all_regs(sbus->devices);
300} 178}
301 179
302static int __init sbus_init(void) 180static int __init sbus_init(void)