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1/*
2 * Broadcom specific AMBA
3 * Broadcom MIPS32 74K core driver
4 *
5 * Copyright 2009, Broadcom Corporation
6 * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
7 * Copyright 2010, Bernhard Loos <bernhardloos@googlemail.com>
8 * Copyright 2011, Hauke Mehrtens <hauke@hauke-m.de>
9 *
10 * Licensed under the GNU/GPL. See COPYING for details.
11 */
12
13#include "bcma_private.h"
14
15#include <linux/bcma/bcma.h>
16
17#include <linux/serial.h>
18#include <linux/serial_core.h>
19#include <linux/serial_reg.h>
20#include <linux/time.h>
21#ifdef CONFIG_BCM47XX
22#include <linux/bcm47xx_nvram.h>
23#endif
24
25enum bcma_boot_dev {
26 BCMA_BOOT_DEV_UNK = 0,
27 BCMA_BOOT_DEV_ROM,
28 BCMA_BOOT_DEV_PARALLEL,
29 BCMA_BOOT_DEV_SERIAL,
30 BCMA_BOOT_DEV_NAND,
31};
32
33/* The 47162a0 hangs when reading MIPS DMP registers */
34static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev)
35{
36 return dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM47162 &&
37 dev->bus->chipinfo.rev == 0 && dev->id.id == BCMA_CORE_MIPS_74K;
38}
39
40/* The 5357b0 hangs when reading USB20H DMP registers */
41static inline bool bcma_core_mips_bcm5357b0_quirk(struct bcma_device *dev)
42{
43 return (dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
44 dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) &&
45 dev->bus->chipinfo.pkg == 11 &&
46 dev->id.id == BCMA_CORE_USB20_HOST;
47}
48
49static inline u32 mips_read32(struct bcma_drv_mips *mcore,
50 u16 offset)
51{
52 return bcma_read32(mcore->core, offset);
53}
54
55static u32 bcma_core_mips_irqflag(struct bcma_device *dev)
56{
57 u32 flag;
58
59 if (bcma_core_mips_bcm47162a0_quirk(dev))
60 return dev->core_index;
61 if (bcma_core_mips_bcm5357b0_quirk(dev))
62 return dev->core_index;
63 flag = bcma_aread32(dev, BCMA_MIPS_OOBSELOUTA30);
64
65 if (flag)
66 return flag & 0x1F;
67 else
68 return 0x3f;
69}
70
71/* Get the MIPS IRQ assignment for a specified device.
72 * If unassigned, 0 is returned.
73 * If disabled, 5 is returned.
74 * If not supported, 6 is returned.
75 */
76unsigned int bcma_core_mips_irq(struct bcma_device *dev)
77{
78 struct bcma_device *mdev = dev->bus->drv_mips.core;
79 u32 irqflag;
80 unsigned int irq;
81
82 irqflag = bcma_core_mips_irqflag(dev);
83 if (irqflag == 0x3f)
84 return 6;
85
86 for (irq = 0; irq <= 4; irq++)
87 if (bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq)) &
88 (1 << irqflag))
89 return irq;
90
91 return 5;
92}
93
94static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq)
95{
96 unsigned int oldirq = bcma_core_mips_irq(dev);
97 struct bcma_bus *bus = dev->bus;
98 struct bcma_device *mdev = bus->drv_mips.core;
99 u32 irqflag;
100
101 irqflag = bcma_core_mips_irqflag(dev);
102 BUG_ON(oldirq == 6);
103
104 dev->irq = irq + 2;
105
106 /* clear the old irq */
107 if (oldirq == 0)
108 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0),
109 bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) &
110 ~(1 << irqflag));
111 else if (oldirq != 5)
112 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(oldirq), 0);
113
114 /* assign the new one */
115 if (irq == 0) {
116 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0),
117 bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) |
118 (1 << irqflag));
119 } else {
120 u32 irqinitmask = bcma_read32(mdev,
121 BCMA_MIPS_MIPS74K_INTMASK(irq));
122 if (irqinitmask) {
123 struct bcma_device *core;
124
125 /* backplane irq line is in use, find out who uses
126 * it and set user to irq 0
127 */
128 list_for_each_entry(core, &bus->cores, list) {
129 if ((1 << bcma_core_mips_irqflag(core)) ==
130 irqinitmask) {
131 bcma_core_mips_set_irq(core, 0);
132 break;
133 }
134 }
135 }
136 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq),
137 1 << irqflag);
138 }
139
140 bcma_debug(bus, "set_irq: core 0x%04x, irq %d => %d\n",
141 dev->id.id, oldirq <= 4 ? oldirq + 2 : 0, irq + 2);
142}
143
144static void bcma_core_mips_set_irq_name(struct bcma_bus *bus, unsigned int irq,
145 u16 coreid, u8 unit)
146{
147 struct bcma_device *core;
148
149 core = bcma_find_core_unit(bus, coreid, unit);
150 if (!core) {
151 bcma_warn(bus,
152 "Can not find core (id: 0x%x, unit %i) for IRQ configuration.\n",
153 coreid, unit);
154 return;
155 }
156
157 bcma_core_mips_set_irq(core, irq);
158}
159
160static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq)
161{
162 int i;
163 static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"};
164 char interrupts[25];
165 char *ints = interrupts;
166
167 for (i = 0; i < ARRAY_SIZE(irq_name); i++)
168 ints += sprintf(ints, " %s%c",
169 irq_name[i], i == irq ? '*' : ' ');
170
171 bcma_debug(dev->bus, "core 0x%04x, irq:%s\n", dev->id.id, interrupts);
172}
173
174static void bcma_core_mips_dump_irq(struct bcma_bus *bus)
175{
176 struct bcma_device *core;
177
178 list_for_each_entry(core, &bus->cores, list) {
179 bcma_core_mips_print_irq(core, bcma_core_mips_irq(core));
180 }
181}
182
183u32 bcma_cpu_clock(struct bcma_drv_mips *mcore)
184{
185 struct bcma_bus *bus = mcore->core->bus;
186
187 if (bus->drv_cc.capabilities & BCMA_CC_CAP_PMU)
188 return bcma_pmu_get_cpu_clock(&bus->drv_cc);
189
190 bcma_err(bus, "No PMU available, need this to get the cpu clock\n");
191 return 0;
192}
193EXPORT_SYMBOL(bcma_cpu_clock);
194
195static enum bcma_boot_dev bcma_boot_dev(struct bcma_bus *bus)
196{
197 struct bcma_drv_cc *cc = &bus->drv_cc;
198 u8 cc_rev = cc->core->id.rev;
199
200 if (cc_rev == 42) {
201 struct bcma_device *core;
202
203 core = bcma_find_core(bus, BCMA_CORE_NS_ROM);
204 if (core) {
205 switch (bcma_aread32(core, BCMA_IOST) &
206 BCMA_NS_ROM_IOST_BOOT_DEV_MASK) {
207 case BCMA_NS_ROM_IOST_BOOT_DEV_NOR:
208 return BCMA_BOOT_DEV_SERIAL;
209 case BCMA_NS_ROM_IOST_BOOT_DEV_NAND:
210 return BCMA_BOOT_DEV_NAND;
211 case BCMA_NS_ROM_IOST_BOOT_DEV_ROM:
212 default:
213 return BCMA_BOOT_DEV_ROM;
214 }
215 }
216 } else {
217 if (cc_rev == 38) {
218 if (cc->status & BCMA_CC_CHIPST_5357_NAND_BOOT)
219 return BCMA_BOOT_DEV_NAND;
220 else if (cc->status & BIT(5))
221 return BCMA_BOOT_DEV_ROM;
222 }
223
224 if ((cc->capabilities & BCMA_CC_CAP_FLASHT) ==
225 BCMA_CC_FLASHT_PARA)
226 return BCMA_BOOT_DEV_PARALLEL;
227 else
228 return BCMA_BOOT_DEV_SERIAL;
229 }
230
231 return BCMA_BOOT_DEV_SERIAL;
232}
233
234static void bcma_core_mips_nvram_init(struct bcma_drv_mips *mcore)
235{
236 struct bcma_bus *bus = mcore->core->bus;
237 enum bcma_boot_dev boot_dev;
238
239 /* Determine flash type this SoC boots from */
240 boot_dev = bcma_boot_dev(bus);
241 switch (boot_dev) {
242 case BCMA_BOOT_DEV_PARALLEL:
243 case BCMA_BOOT_DEV_SERIAL:
244#ifdef CONFIG_BCM47XX
245 bcm47xx_nvram_init_from_mem(BCMA_SOC_FLASH2,
246 BCMA_SOC_FLASH2_SZ);
247#endif
248 break;
249 case BCMA_BOOT_DEV_NAND:
250#ifdef CONFIG_BCM47XX
251 bcm47xx_nvram_init_from_mem(BCMA_SOC_FLASH1,
252 BCMA_SOC_FLASH1_SZ);
253#endif
254 break;
255 default:
256 break;
257 }
258}
259
260void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
261{
262 struct bcma_bus *bus = mcore->core->bus;
263
264 if (mcore->early_setup_done)
265 return;
266
267 bcma_chipco_serial_init(&bus->drv_cc);
268 bcma_core_mips_nvram_init(mcore);
269
270 mcore->early_setup_done = true;
271}
272
273static void bcma_fix_i2s_irqflag(struct bcma_bus *bus)
274{
275 struct bcma_device *cpu, *pcie, *i2s;
276
277 /* Fixup the interrupts in 4716/4748 for i2s core (2010 Broadcom SDK)
278 * (IRQ flags > 7 are ignored when setting the interrupt masks)
279 */
280 if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4716 &&
281 bus->chipinfo.id != BCMA_CHIP_ID_BCM4748)
282 return;
283
284 cpu = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
285 pcie = bcma_find_core(bus, BCMA_CORE_PCIE);
286 i2s = bcma_find_core(bus, BCMA_CORE_I2S);
287 if (cpu && pcie && i2s &&
288 bcma_aread32(cpu, BCMA_MIPS_OOBSELINA74) == 0x08060504 &&
289 bcma_aread32(pcie, BCMA_MIPS_OOBSELINA74) == 0x08060504 &&
290 bcma_aread32(i2s, BCMA_MIPS_OOBSELOUTA30) == 0x88) {
291 bcma_awrite32(cpu, BCMA_MIPS_OOBSELINA74, 0x07060504);
292 bcma_awrite32(pcie, BCMA_MIPS_OOBSELINA74, 0x07060504);
293 bcma_awrite32(i2s, BCMA_MIPS_OOBSELOUTA30, 0x87);
294 bcma_debug(bus,
295 "Moved i2s interrupt to oob line 7 instead of 8\n");
296 }
297}
298
299void bcma_core_mips_init(struct bcma_drv_mips *mcore)
300{
301 struct bcma_bus *bus;
302 struct bcma_device *core;
303 bus = mcore->core->bus;
304
305 if (mcore->setup_done)
306 return;
307
308 bcma_debug(bus, "Initializing MIPS core...\n");
309
310 bcma_core_mips_early_init(mcore);
311
312 bcma_fix_i2s_irqflag(bus);
313
314 switch (bus->chipinfo.id) {
315 case BCMA_CHIP_ID_BCM4716:
316 case BCMA_CHIP_ID_BCM4748:
317 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
318 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
319 bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_USB20_HOST, 0);
320 bcma_core_mips_set_irq_name(bus, 4, BCMA_CORE_PCIE, 0);
321 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
322 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_I2S, 0);
323 break;
324 case BCMA_CHIP_ID_BCM5356:
325 case BCMA_CHIP_ID_BCM47162:
326 case BCMA_CHIP_ID_BCM53572:
327 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
328 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
329 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
330 break;
331 case BCMA_CHIP_ID_BCM5357:
332 case BCMA_CHIP_ID_BCM4749:
333 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
334 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
335 bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_USB20_HOST, 0);
336 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
337 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_I2S, 0);
338 break;
339 case BCMA_CHIP_ID_BCM4706:
340 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_PCIE, 0);
341 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_4706_MAC_GBIT,
342 0);
343 bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_PCIE, 1);
344 bcma_core_mips_set_irq_name(bus, 4, BCMA_CORE_USB20_HOST, 0);
345 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_4706_CHIPCOMMON,
346 0);
347 break;
348 default:
349 list_for_each_entry(core, &bus->cores, list) {
350 core->irq = bcma_core_irq(core, 0);
351 }
352 bcma_err(bus,
353 "Unknown device (0x%x) found, can not configure IRQs\n",
354 bus->chipinfo.id);
355 }
356 bcma_debug(bus, "IRQ reconfiguration done\n");
357 bcma_core_mips_dump_irq(bus);
358
359 mcore->setup_done = true;
360}
1/*
2 * Broadcom specific AMBA
3 * Broadcom MIPS32 74K core driver
4 *
5 * Copyright 2009, Broadcom Corporation
6 * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
7 * Copyright 2010, Bernhard Loos <bernhardloos@googlemail.com>
8 * Copyright 2011, Hauke Mehrtens <hauke@hauke-m.de>
9 *
10 * Licensed under the GNU/GPL. See COPYING for details.
11 */
12
13#include "bcma_private.h"
14
15#include <linux/bcma/bcma.h>
16
17#include <linux/mtd/physmap.h>
18#include <linux/platform_device.h>
19#include <linux/serial.h>
20#include <linux/serial_core.h>
21#include <linux/serial_reg.h>
22#include <linux/time.h>
23
24static const char * const part_probes[] = { "bcm47xxpart", NULL };
25
26static struct physmap_flash_data bcma_pflash_data = {
27 .part_probe_types = part_probes,
28};
29
30static struct resource bcma_pflash_resource = {
31 .name = "bcma_pflash",
32 .flags = IORESOURCE_MEM,
33};
34
35struct platform_device bcma_pflash_dev = {
36 .name = "physmap-flash",
37 .dev = {
38 .platform_data = &bcma_pflash_data,
39 },
40 .resource = &bcma_pflash_resource,
41 .num_resources = 1,
42};
43
44/* The 47162a0 hangs when reading MIPS DMP registers registers */
45static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev)
46{
47 return dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM47162 &&
48 dev->bus->chipinfo.rev == 0 && dev->id.id == BCMA_CORE_MIPS_74K;
49}
50
51/* The 5357b0 hangs when reading USB20H DMP registers */
52static inline bool bcma_core_mips_bcm5357b0_quirk(struct bcma_device *dev)
53{
54 return (dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
55 dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) &&
56 dev->bus->chipinfo.pkg == 11 &&
57 dev->id.id == BCMA_CORE_USB20_HOST;
58}
59
60static inline u32 mips_read32(struct bcma_drv_mips *mcore,
61 u16 offset)
62{
63 return bcma_read32(mcore->core, offset);
64}
65
66static inline void mips_write32(struct bcma_drv_mips *mcore,
67 u16 offset,
68 u32 value)
69{
70 bcma_write32(mcore->core, offset, value);
71}
72
73static const u32 ipsflag_irq_mask[] = {
74 0,
75 BCMA_MIPS_IPSFLAG_IRQ1,
76 BCMA_MIPS_IPSFLAG_IRQ2,
77 BCMA_MIPS_IPSFLAG_IRQ3,
78 BCMA_MIPS_IPSFLAG_IRQ4,
79};
80
81static const u32 ipsflag_irq_shift[] = {
82 0,
83 BCMA_MIPS_IPSFLAG_IRQ1_SHIFT,
84 BCMA_MIPS_IPSFLAG_IRQ2_SHIFT,
85 BCMA_MIPS_IPSFLAG_IRQ3_SHIFT,
86 BCMA_MIPS_IPSFLAG_IRQ4_SHIFT,
87};
88
89static u32 bcma_core_mips_irqflag(struct bcma_device *dev)
90{
91 u32 flag;
92
93 if (bcma_core_mips_bcm47162a0_quirk(dev))
94 return dev->core_index;
95 if (bcma_core_mips_bcm5357b0_quirk(dev))
96 return dev->core_index;
97 flag = bcma_aread32(dev, BCMA_MIPS_OOBSELOUTA30);
98
99 if (flag)
100 return flag & 0x1F;
101 else
102 return 0x3f;
103}
104
105/* Get the MIPS IRQ assignment for a specified device.
106 * If unassigned, 0 is returned.
107 * If disabled, 5 is returned.
108 * If not supported, 6 is returned.
109 */
110static unsigned int bcma_core_mips_irq(struct bcma_device *dev)
111{
112 struct bcma_device *mdev = dev->bus->drv_mips.core;
113 u32 irqflag;
114 unsigned int irq;
115
116 irqflag = bcma_core_mips_irqflag(dev);
117 if (irqflag == 0x3f)
118 return 6;
119
120 for (irq = 0; irq <= 4; irq++)
121 if (bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq)) &
122 (1 << irqflag))
123 return irq;
124
125 return 5;
126}
127
128unsigned int bcma_core_irq(struct bcma_device *dev)
129{
130 unsigned int mips_irq = bcma_core_mips_irq(dev);
131 return mips_irq <= 4 ? mips_irq + 2 : 0;
132}
133EXPORT_SYMBOL(bcma_core_irq);
134
135static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq)
136{
137 unsigned int oldirq = bcma_core_mips_irq(dev);
138 struct bcma_bus *bus = dev->bus;
139 struct bcma_device *mdev = bus->drv_mips.core;
140 u32 irqflag;
141
142 irqflag = bcma_core_mips_irqflag(dev);
143 BUG_ON(oldirq == 6);
144
145 dev->irq = irq + 2;
146
147 /* clear the old irq */
148 if (oldirq == 0)
149 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0),
150 bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) &
151 ~(1 << irqflag));
152 else if (oldirq != 5)
153 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(oldirq), 0);
154
155 /* assign the new one */
156 if (irq == 0) {
157 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0),
158 bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) |
159 (1 << irqflag));
160 } else {
161 u32 irqinitmask = bcma_read32(mdev,
162 BCMA_MIPS_MIPS74K_INTMASK(irq));
163 if (irqinitmask) {
164 struct bcma_device *core;
165
166 /* backplane irq line is in use, find out who uses
167 * it and set user to irq 0
168 */
169 list_for_each_entry(core, &bus->cores, list) {
170 if ((1 << bcma_core_mips_irqflag(core)) ==
171 irqinitmask) {
172 bcma_core_mips_set_irq(core, 0);
173 break;
174 }
175 }
176 }
177 bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq),
178 1 << irqflag);
179 }
180
181 bcma_debug(bus, "set_irq: core 0x%04x, irq %d => %d\n",
182 dev->id.id, oldirq <= 4 ? oldirq + 2 : 0, irq + 2);
183}
184
185static void bcma_core_mips_set_irq_name(struct bcma_bus *bus, unsigned int irq,
186 u16 coreid, u8 unit)
187{
188 struct bcma_device *core;
189
190 core = bcma_find_core_unit(bus, coreid, unit);
191 if (!core) {
192 bcma_warn(bus,
193 "Can not find core (id: 0x%x, unit %i) for IRQ configuration.\n",
194 coreid, unit);
195 return;
196 }
197
198 bcma_core_mips_set_irq(core, irq);
199}
200
201static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq)
202{
203 int i;
204 static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"};
205 printk(KERN_DEBUG KBUILD_MODNAME ": core 0x%04x, irq :", dev->id.id);
206 for (i = 0; i <= 6; i++)
207 printk(" %s%s", irq_name[i], i == irq ? "*" : " ");
208 printk("\n");
209}
210
211static void bcma_core_mips_dump_irq(struct bcma_bus *bus)
212{
213 struct bcma_device *core;
214
215 list_for_each_entry(core, &bus->cores, list) {
216 bcma_core_mips_print_irq(core, bcma_core_mips_irq(core));
217 }
218}
219
220u32 bcma_cpu_clock(struct bcma_drv_mips *mcore)
221{
222 struct bcma_bus *bus = mcore->core->bus;
223
224 if (bus->drv_cc.capabilities & BCMA_CC_CAP_PMU)
225 return bcma_pmu_get_cpu_clock(&bus->drv_cc);
226
227 bcma_err(bus, "No PMU available, need this to get the cpu clock\n");
228 return 0;
229}
230EXPORT_SYMBOL(bcma_cpu_clock);
231
232static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
233{
234 struct bcma_bus *bus = mcore->core->bus;
235 struct bcma_drv_cc *cc = &bus->drv_cc;
236 struct bcma_pflash *pflash = &cc->pflash;
237
238 switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
239 case BCMA_CC_FLASHT_STSER:
240 case BCMA_CC_FLASHT_ATSER:
241 bcma_debug(bus, "Found serial flash\n");
242 bcma_sflash_init(cc);
243 break;
244 case BCMA_CC_FLASHT_PARA:
245 bcma_debug(bus, "Found parallel flash\n");
246 pflash->present = true;
247 pflash->window = BCMA_SOC_FLASH2;
248 pflash->window_size = BCMA_SOC_FLASH2_SZ;
249
250 if ((bcma_read32(cc->core, BCMA_CC_FLASH_CFG) &
251 BCMA_CC_FLASH_CFG_DS) == 0)
252 pflash->buswidth = 1;
253 else
254 pflash->buswidth = 2;
255
256 bcma_pflash_data.width = pflash->buswidth;
257 bcma_pflash_resource.start = pflash->window;
258 bcma_pflash_resource.end = pflash->window + pflash->window_size;
259
260 break;
261 default:
262 bcma_err(bus, "Flash type not supported\n");
263 }
264
265 if (cc->core->id.rev == 38 ||
266 bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
267 if (cc->capabilities & BCMA_CC_CAP_NFLASH) {
268 bcma_debug(bus, "Found NAND flash\n");
269 bcma_nflash_init(cc);
270 }
271 }
272}
273
274void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
275{
276 struct bcma_bus *bus = mcore->core->bus;
277
278 if (mcore->early_setup_done)
279 return;
280
281 bcma_chipco_serial_init(&bus->drv_cc);
282 bcma_core_mips_flash_detect(mcore);
283
284 mcore->early_setup_done = true;
285}
286
287static void bcma_fix_i2s_irqflag(struct bcma_bus *bus)
288{
289 struct bcma_device *cpu, *pcie, *i2s;
290
291 /* Fixup the interrupts in 4716/4748 for i2s core (2010 Broadcom SDK)
292 * (IRQ flags > 7 are ignored when setting the interrupt masks)
293 */
294 if (bus->chipinfo.id != BCMA_CHIP_ID_BCM4716 &&
295 bus->chipinfo.id != BCMA_CHIP_ID_BCM4748)
296 return;
297
298 cpu = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
299 pcie = bcma_find_core(bus, BCMA_CORE_PCIE);
300 i2s = bcma_find_core(bus, BCMA_CORE_I2S);
301 if (cpu && pcie && i2s &&
302 bcma_aread32(cpu, BCMA_MIPS_OOBSELINA74) == 0x08060504 &&
303 bcma_aread32(pcie, BCMA_MIPS_OOBSELINA74) == 0x08060504 &&
304 bcma_aread32(i2s, BCMA_MIPS_OOBSELOUTA30) == 0x88) {
305 bcma_awrite32(cpu, BCMA_MIPS_OOBSELINA74, 0x07060504);
306 bcma_awrite32(pcie, BCMA_MIPS_OOBSELINA74, 0x07060504);
307 bcma_awrite32(i2s, BCMA_MIPS_OOBSELOUTA30, 0x87);
308 bcma_debug(bus,
309 "Moved i2s interrupt to oob line 7 instead of 8\n");
310 }
311}
312
313void bcma_core_mips_init(struct bcma_drv_mips *mcore)
314{
315 struct bcma_bus *bus;
316 struct bcma_device *core;
317 bus = mcore->core->bus;
318
319 if (mcore->setup_done)
320 return;
321
322 bcma_debug(bus, "Initializing MIPS core...\n");
323
324 bcma_core_mips_early_init(mcore);
325
326 bcma_fix_i2s_irqflag(bus);
327
328 switch (bus->chipinfo.id) {
329 case BCMA_CHIP_ID_BCM4716:
330 case BCMA_CHIP_ID_BCM4748:
331 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
332 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
333 bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_USB20_HOST, 0);
334 bcma_core_mips_set_irq_name(bus, 4, BCMA_CORE_PCIE, 0);
335 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
336 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_I2S, 0);
337 break;
338 case BCMA_CHIP_ID_BCM5356:
339 case BCMA_CHIP_ID_BCM47162:
340 case BCMA_CHIP_ID_BCM53572:
341 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
342 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
343 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
344 break;
345 case BCMA_CHIP_ID_BCM5357:
346 case BCMA_CHIP_ID_BCM4749:
347 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_80211, 0);
348 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_MAC_GBIT, 0);
349 bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_USB20_HOST, 0);
350 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_CHIPCOMMON, 0);
351 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_I2S, 0);
352 break;
353 case BCMA_CHIP_ID_BCM4706:
354 bcma_core_mips_set_irq_name(bus, 1, BCMA_CORE_PCIE, 0);
355 bcma_core_mips_set_irq_name(bus, 2, BCMA_CORE_4706_MAC_GBIT,
356 0);
357 bcma_core_mips_set_irq_name(bus, 3, BCMA_CORE_PCIE, 1);
358 bcma_core_mips_set_irq_name(bus, 4, BCMA_CORE_USB20_HOST, 0);
359 bcma_core_mips_set_irq_name(bus, 0, BCMA_CORE_4706_CHIPCOMMON,
360 0);
361 break;
362 default:
363 list_for_each_entry(core, &bus->cores, list) {
364 core->irq = bcma_core_irq(core);
365 }
366 bcma_err(bus,
367 "Unknown device (0x%x) found, can not configure IRQs\n",
368 bus->chipinfo.id);
369 }
370 bcma_debug(bus, "IRQ reconfiguration done\n");
371 bcma_core_mips_dump_irq(bus);
372
373 mcore->setup_done = true;
374}