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Tony Lindgren1dbae812005-11-10 14:26:51 +00001/*
2 * linux/arch/arm/mach-omap2/id.c
3 *
4 * OMAP2 CPU identification code
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 * Written by Tony Lindgren <tony@atomide.com>
8 *
Santosh Shilimkar44169072009-05-28 14:16:04 -07009 * Copyright (C) 2009 Texas Instruments
10 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
11 *
Tony Lindgren1dbae812005-11-10 14:26:51 +000012 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
Tony Lindgren1dbae812005-11-10 14:26:51 +000017#include <linux/module.h>
18#include <linux/kernel.h>
19#include <linux/init.h>
Russell Kingfced80c2008-09-06 12:10:45 +010020#include <linux/io.h>
Tony Lindgren1dbae812005-11-10 14:26:51 +000021
Russell King0ba8b9b2008-08-10 18:08:10 +010022#include <asm/cputype.h>
Tony Lindgren1dbae812005-11-10 14:26:51 +000023
Tony Lindgrence491cf2009-10-20 09:40:47 -070024#include <plat/common.h>
25#include <plat/control.h>
26#include <plat/cpu.h>
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -080027
Paul Walmsley097c5842008-07-03 12:24:45 +030028static struct omap_chip_id omap_chip;
Lauri Leukkunen84a34342008-12-10 17:36:31 -080029static unsigned int omap_revision;
30
Sanjeev Premi8384ce02009-11-22 10:10:53 -080031u32 omap3_features;
Lauri Leukkunen84a34342008-12-10 17:36:31 -080032
33unsigned int omap_rev(void)
34{
35 return omap_revision;
36}
37EXPORT_SYMBOL(omap_rev);
Paul Walmsley097c5842008-07-03 12:24:45 +030038
39/**
40 * omap_chip_is - test whether currently running OMAP matches a chip type
41 * @oc: omap_chip_t to test against
42 *
43 * Test whether the currently-running OMAP chip matches the supplied
44 * chip type 'oc'. Returns 1 upon a match; 0 upon failure.
45 */
46int omap_chip_is(struct omap_chip_id oci)
47{
48 return (oci.oc & omap_chip.oc) ? 1 : 0;
49}
50EXPORT_SYMBOL(omap_chip_is);
51
Kevin Hilman8e25ad92009-06-23 13:30:23 +030052int omap_type(void)
53{
54 u32 val = 0;
55
Felipe Balbiedeae652009-11-22 10:11:24 -080056 if (cpu_is_omap24xx()) {
Kevin Hilman8e25ad92009-06-23 13:30:23 +030057 val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS);
Felipe Balbiedeae652009-11-22 10:11:24 -080058 } else if (cpu_is_omap34xx()) {
Kevin Hilman8e25ad92009-06-23 13:30:23 +030059 val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS);
Santosh Shilimkar737daa02010-02-18 08:59:10 +000060 } else if (cpu_is_omap44xx()) {
61 val = omap_ctrl_readl(OMAP44XX_CONTROL_STATUS);
Felipe Balbiedeae652009-11-22 10:11:24 -080062 } else {
Kevin Hilman8e25ad92009-06-23 13:30:23 +030063 pr_err("Cannot detect omap type!\n");
64 goto out;
65 }
66
67 val &= OMAP2_DEVICETYPE_MASK;
68 val >>= 8;
69
70out:
71 return val;
72}
73EXPORT_SYMBOL(omap_type);
74
75
Tony Lindgrena8823142008-12-10 17:36:30 -080076/*----------------------------------------------------------------------------*/
Paul Walmsley097c5842008-07-03 12:24:45 +030077
Tony Lindgrena8823142008-12-10 17:36:30 -080078#define OMAP_TAP_IDCODE 0x0204
79#define OMAP_TAP_DIE_ID_0 0x0218
80#define OMAP_TAP_DIE_ID_1 0x021C
81#define OMAP_TAP_DIE_ID_2 0x0220
82#define OMAP_TAP_DIE_ID_3 0x0224
Paul Walmsley097c5842008-07-03 12:24:45 +030083
Tony Lindgrena8823142008-12-10 17:36:30 -080084#define read_tap_reg(reg) __raw_readl(tap_base + (reg))
Tony Lindgren0e564842008-10-06 15:49:16 +030085
Tony Lindgrena8823142008-12-10 17:36:30 -080086struct omap_id {
87 u16 hawkeye; /* Silicon type (Hawkeye id) */
88 u8 dev; /* Device type from production_id reg */
Lauri Leukkunen84a34342008-12-10 17:36:31 -080089 u32 type; /* Combined type id copied to omap_revision */
Tony Lindgrena8823142008-12-10 17:36:30 -080090};
Tony Lindgren0e564842008-10-06 15:49:16 +030091
Tony Lindgrena8823142008-12-10 17:36:30 -080092/* Register values to detect the OMAP version */
93static struct omap_id omap_ids[] __initdata = {
94 { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200024 },
95 { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201024 },
96 { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202024 },
97 { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220024 },
98 { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230024 },
99 { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300024 },
100};
Paul Walmsley097c5842008-07-03 12:24:45 +0300101
Tony Lindgrena8823142008-12-10 17:36:30 -0800102static void __iomem *tap_base;
103static u16 tap_prod_id;
Tony Lindgren1dbae812005-11-10 14:26:51 +0000104
Tony Lindgren5ba02dc2008-12-10 17:36:30 -0800105void __init omap24xx_check_revision(void)
Tony Lindgren1dbae812005-11-10 14:26:51 +0000106{
107 int i, j;
Tony Lindgrena8823142008-12-10 17:36:30 -0800108 u32 idcode, prod_id;
Tony Lindgren1dbae812005-11-10 14:26:51 +0000109 u16 hawkeye;
Tony Lindgrena8823142008-12-10 17:36:30 -0800110 u8 dev_type, rev;
Tony Lindgren1dbae812005-11-10 14:26:51 +0000111
112 idcode = read_tap_reg(OMAP_TAP_IDCODE);
Tony Lindgren0e564842008-10-06 15:49:16 +0300113 prod_id = read_tap_reg(tap_prod_id);
Tony Lindgren1dbae812005-11-10 14:26:51 +0000114 hawkeye = (idcode >> 12) & 0xffff;
115 rev = (idcode >> 28) & 0x0f;
116 dev_type = (prod_id >> 16) & 0x0f;
117
Paul Walmsley097c5842008-07-03 12:24:45 +0300118 pr_debug("OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n",
119 idcode, rev, hawkeye, (idcode >> 1) & 0x7ff);
120 pr_debug("OMAP_TAP_DIE_ID_0: 0x%08x\n",
121 read_tap_reg(OMAP_TAP_DIE_ID_0));
122 pr_debug("OMAP_TAP_DIE_ID_1: 0x%08x DEV_REV: %i\n",
123 read_tap_reg(OMAP_TAP_DIE_ID_1),
124 (read_tap_reg(OMAP_TAP_DIE_ID_1) >> 28) & 0xf);
125 pr_debug("OMAP_TAP_DIE_ID_2: 0x%08x\n",
126 read_tap_reg(OMAP_TAP_DIE_ID_2));
127 pr_debug("OMAP_TAP_DIE_ID_3: 0x%08x\n",
128 read_tap_reg(OMAP_TAP_DIE_ID_3));
129 pr_debug("OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n",
130 prod_id, dev_type);
131
Tony Lindgren1dbae812005-11-10 14:26:51 +0000132 /* Check hawkeye ids */
133 for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
134 if (hawkeye == omap_ids[i].hawkeye)
135 break;
136 }
137
138 if (i == ARRAY_SIZE(omap_ids)) {
139 printk(KERN_ERR "Unknown OMAP CPU id\n");
140 return;
141 }
142
143 for (j = i; j < ARRAY_SIZE(omap_ids); j++) {
144 if (dev_type == omap_ids[j].dev)
145 break;
146 }
147
148 if (j == ARRAY_SIZE(omap_ids)) {
149 printk(KERN_ERR "Unknown OMAP device type. "
150 "Handling it as OMAP%04x\n",
151 omap_ids[i].type >> 16);
152 j = i;
153 }
Tony Lindgren1dbae812005-11-10 14:26:51 +0000154
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800155 pr_info("OMAP%04x", omap_rev() >> 16);
156 if ((omap_rev() >> 8) & 0x0f)
157 pr_info("ES%x", (omap_rev() >> 12) & 0xf);
Paul Walmsley097c5842008-07-03 12:24:45 +0300158 pr_info("\n");
Tony Lindgren1dbae812005-11-10 14:26:51 +0000159}
160
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800161#define OMAP3_CHECK_FEATURE(status,feat) \
162 if (((status & OMAP3_ ##feat## _MASK) \
163 >> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \
164 omap3_features |= OMAP3_HAS_ ##feat; \
165 }
166
167void __init omap3_check_features(void)
168{
169 u32 status;
170
171 omap3_features = 0;
172
173 status = omap_ctrl_readl(OMAP3_CONTROL_OMAP_STATUS);
174
175 OMAP3_CHECK_FEATURE(status, L2CACHE);
176 OMAP3_CHECK_FEATURE(status, IVA);
177 OMAP3_CHECK_FEATURE(status, SGX);
178 OMAP3_CHECK_FEATURE(status, NEON);
179 OMAP3_CHECK_FEATURE(status, ISP);
180
181 /*
182 * TODO: Get additional info (where applicable)
183 * e.g. Size of L2 cache.
184 */
185}
186
187void __init omap3_check_revision(void)
Tony Lindgrena8823142008-12-10 17:36:30 -0800188{
189 u32 cpuid, idcode;
190 u16 hawkeye;
191 u8 rev;
Tony Lindgrena8823142008-12-10 17:36:30 -0800192
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800193 omap_chip.oc = CHIP_IS_OMAP3430;
194
Tony Lindgrena8823142008-12-10 17:36:30 -0800195 /*
196 * We cannot access revision registers on ES1.0.
197 * If the processor type is Cortex-A8 and the revision is 0x0
198 * it means its Cortex r0p0 which is 3430 ES1.0.
199 */
200 cpuid = read_cpuid(CPUID_ID);
201 if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) {
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800202 omap_revision = OMAP3430_REV_ES1_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800203 omap_chip.oc |= CHIP_IS_OMAP3430ES1;
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800204 return;
Tony Lindgrena8823142008-12-10 17:36:30 -0800205 }
206
207 /*
208 * Detection for 34xx ES2.0 and above can be done with just
209 * hawkeye and rev. See TRM 1.5.2 Device Identification.
210 * Note that rev does not map directly to our defined processor
211 * revision numbers as ES1.0 uses value 0.
212 */
213 idcode = read_tap_reg(OMAP_TAP_IDCODE);
214 hawkeye = (idcode >> 12) & 0xffff;
215 rev = (idcode >> 28) & 0xff;
216
Nishanth Menon2456a102009-11-22 10:10:56 -0800217 switch (hawkeye) {
218 case 0xb7ae:
219 /* Handle 34xx/35xx devices */
Tony Lindgrena8823142008-12-10 17:36:30 -0800220 switch (rev) {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800221 case 0: /* Take care of early samples */
222 case 1:
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800223 omap_revision = OMAP3430_REV_ES2_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800224 omap_chip.oc |= CHIP_IS_OMAP3430ES2;
Tony Lindgrena8823142008-12-10 17:36:30 -0800225 break;
226 case 2:
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800227 omap_revision = OMAP3430_REV_ES2_1;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800228 omap_chip.oc |= CHIP_IS_OMAP3430ES2;
Tony Lindgrena8823142008-12-10 17:36:30 -0800229 break;
230 case 3:
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800231 omap_revision = OMAP3430_REV_ES3_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800232 omap_chip.oc |= CHIP_IS_OMAP3430ES3_0;
Tony Lindgrena8823142008-12-10 17:36:30 -0800233 break;
Tony Lindgren187e6882009-01-29 08:57:16 -0800234 case 4:
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800235 omap_revision = OMAP3430_REV_ES3_1;
236 omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
237 break;
238 case 7:
Felipe Balbiedeae652009-11-22 10:11:24 -0800239 /* FALLTHROUGH */
Tony Lindgrena8823142008-12-10 17:36:30 -0800240 default:
241 /* Use the latest known revision as default */
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800242 omap_revision = OMAP3430_REV_ES3_1_2;
243
244 /* REVISIT: Add CHIP_IS_OMAP3430ES3_1_2? */
245 omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
Tony Lindgrena8823142008-12-10 17:36:30 -0800246 }
Nishanth Menon2456a102009-11-22 10:10:56 -0800247 break;
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800248 case 0xb868:
249 /* Handle OMAP35xx/AM35xx devices
250 *
251 * Set the device to be OMAP3505 here. Actual device
252 * is identified later based on the features.
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800253 *
254 * REVISIT: AM3505/AM3517 should have their own CHIP_IS
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800255 */
256 omap_revision = OMAP3505_REV(rev);
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800257 omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800258 break;
Felipe Balbiedeae652009-11-22 10:11:24 -0800259 case 0xb891:
260 /* FALLTHROUGH */
Nishanth Menon2456a102009-11-22 10:10:56 -0800261 default:
262 /* Unknown default to latest silicon rev as default*/
263 omap_revision = OMAP3630_REV_ES1_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800264 omap_chip.oc |= CHIP_IS_OMAP3630ES1;
Tony Lindgrena8823142008-12-10 17:36:30 -0800265 }
Tony Lindgrena8823142008-12-10 17:36:30 -0800266}
267
Santosh Shilimkarb570e0e2009-12-11 16:16:34 -0800268void __init omap4_check_revision(void)
269{
270 u32 idcode;
271 u16 hawkeye;
272 u8 rev;
273 char *rev_name = "ES1.0";
274
275 /*
276 * The IC rev detection is done with hawkeye and rev.
277 * Note that rev does not map directly to defined processor
278 * revision numbers as ES1.0 uses value 0.
279 */
280 idcode = read_tap_reg(OMAP_TAP_IDCODE);
281 hawkeye = (idcode >> 12) & 0xffff;
282 rev = (idcode >> 28) & 0xff;
283
284 if ((hawkeye == 0xb852) && (rev == 0x0)) {
285 omap_revision = OMAP4430_REV_ES1_0;
Abhijit Pagarec6a6e6e2010-01-26 20:12:51 -0700286 omap_chip.oc |= CHIP_IS_OMAP4430ES1;
Santosh Shilimkarb570e0e2009-12-11 16:16:34 -0800287 pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name);
288 return;
289 }
290
291 pr_err("Unknown OMAP4 CPU id\n");
292}
293
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800294#define OMAP3_SHOW_FEATURE(feat) \
Kevin Hilmancedf9002009-11-22 10:11:13 -0800295 if (omap3_has_ ##feat()) \
296 printk(#feat" ");
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800297
298void __init omap3_cpuinfo(void)
299{
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800300 u8 rev = GET_OMAP_REVISION();
301 char cpu_name[16], cpu_rev[16];
302
303 /* OMAP3430 and OMAP3530 are assumed to be same.
304 *
305 * OMAP3525, OMAP3515 and OMAP3503 can be detected only based
306 * on available features. Upon detection, update the CPU id
307 * and CPU class bits.
308 */
Felipe Balbiedeae652009-11-22 10:11:24 -0800309 if (cpu_is_omap3630()) {
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800310 strcpy(cpu_name, "OMAP3630");
Felipe Balbiedeae652009-11-22 10:11:24 -0800311 } else if (cpu_is_omap3505()) {
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800312 /*
313 * AM35xx devices
314 */
315 if (omap3_has_sgx()) {
316 omap_revision = OMAP3517_REV(rev);
317 strcpy(cpu_name, "AM3517");
Felipe Balbiedeae652009-11-22 10:11:24 -0800318 } else {
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800319 /* Already set in omap3_check_revision() */
320 strcpy(cpu_name, "AM3505");
321 }
Felipe Balbiedeae652009-11-22 10:11:24 -0800322 } else if (omap3_has_iva() && omap3_has_sgx()) {
323 /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800324 strcpy(cpu_name, "OMAP3430/3530");
Sergey Lapin0712fb32009-12-11 16:16:37 -0800325 } else if (omap3_has_iva()) {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800326 omap_revision = OMAP3525_REV(rev);
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800327 strcpy(cpu_name, "OMAP3525");
Sergey Lapin0712fb32009-12-11 16:16:37 -0800328 } else if (omap3_has_sgx()) {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800329 omap_revision = OMAP3515_REV(rev);
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800330 strcpy(cpu_name, "OMAP3515");
Felipe Balbiedeae652009-11-22 10:11:24 -0800331 } else {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800332 omap_revision = OMAP3503_REV(rev);
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800333 strcpy(cpu_name, "OMAP3503");
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800334 }
335
336 switch (rev) {
337 case OMAP_REVBITS_00:
338 strcpy(cpu_rev, "1.0");
339 break;
340 case OMAP_REVBITS_10:
341 strcpy(cpu_rev, "2.0");
342 break;
343 case OMAP_REVBITS_20:
344 strcpy(cpu_rev, "2.1");
345 break;
346 case OMAP_REVBITS_30:
347 strcpy(cpu_rev, "3.0");
348 break;
349 case OMAP_REVBITS_40:
Felipe Balbiedeae652009-11-22 10:11:24 -0800350 /* FALLTHROUGH */
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800351 default:
352 /* Use the latest known revision as default */
353 strcpy(cpu_rev, "3.1");
354 }
355
Felipe Balbiedeae652009-11-22 10:11:24 -0800356 /* Print verbose information */
Kevin Hilmancedf9002009-11-22 10:11:13 -0800357 pr_info("%s ES%s (", cpu_name, cpu_rev);
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800358
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800359 OMAP3_SHOW_FEATURE(l2cache);
360 OMAP3_SHOW_FEATURE(iva);
361 OMAP3_SHOW_FEATURE(sgx);
362 OMAP3_SHOW_FEATURE(neon);
363 OMAP3_SHOW_FEATURE(isp);
Kevin Hilmancedf9002009-11-22 10:11:13 -0800364
365 printk(")\n");
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800366}
367
Tony Lindgrena8823142008-12-10 17:36:30 -0800368/*
369 * Try to detect the exact revision of the omap we're running on
370 */
Tony Lindgren5ba02dc2008-12-10 17:36:30 -0800371void __init omap2_check_revision(void)
372{
Tony Lindgrena8823142008-12-10 17:36:30 -0800373 /*
374 * At this point we have an idea about the processor revision set
375 * earlier with omap2_set_globals_tap().
376 */
Felipe Balbiedeae652009-11-22 10:11:24 -0800377 if (cpu_is_omap24xx()) {
Tony Lindgrena8823142008-12-10 17:36:30 -0800378 omap24xx_check_revision();
Felipe Balbiedeae652009-11-22 10:11:24 -0800379 } else if (cpu_is_omap34xx()) {
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800380 omap3_check_revision();
Nishanth Menon05574bb2009-11-22 10:11:12 -0800381 omap3_check_features();
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800382 omap3_cpuinfo();
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800383 return;
Felipe Balbiedeae652009-11-22 10:11:24 -0800384 } else if (cpu_is_omap44xx()) {
Santosh Shilimkarb570e0e2009-12-11 16:16:34 -0800385 omap4_check_revision();
Santosh Shilimkar44169072009-05-28 14:16:04 -0700386 return;
Felipe Balbiedeae652009-11-22 10:11:24 -0800387 } else {
Tony Lindgrena8823142008-12-10 17:36:30 -0800388 pr_err("OMAP revision unknown, please fix!\n");
Felipe Balbiedeae652009-11-22 10:11:24 -0800389 }
Tony Lindgrena8823142008-12-10 17:36:30 -0800390
391 /*
392 * OK, now we know the exact revision. Initialize omap_chip bits
393 * for powerdowmain and clockdomain code.
394 */
395 if (cpu_is_omap243x()) {
396 /* Currently only supports 2430ES2.1 and 2430-all */
397 omap_chip.oc |= CHIP_IS_OMAP2430;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800398 return;
Tony Lindgrena8823142008-12-10 17:36:30 -0800399 } else if (cpu_is_omap242x()) {
400 /* Currently only supports 2420ES2.1.1 and 2420-all */
401 omap_chip.oc |= CHIP_IS_OMAP2420;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800402 return;
Tony Lindgrena8823142008-12-10 17:36:30 -0800403 }
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800404
405 pr_err("Uninitialized omap_chip, please fix!\n");
Tony Lindgren5ba02dc2008-12-10 17:36:30 -0800406}
407
Tony Lindgrena8823142008-12-10 17:36:30 -0800408/*
409 * Set up things for map_io and processor detection later on. Gets called
410 * pretty much first thing from board init. For multi-omap, this gets
411 * cpu_is_omapxxxx() working accurately enough for map_io. Then we'll try to
412 * detect the exact revision later on in omap2_detect_revision() once map_io
413 * is done.
414 */
Tony Lindgren0e564842008-10-06 15:49:16 +0300415void __init omap2_set_globals_tap(struct omap_globals *omap2_globals)
416{
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800417 omap_revision = omap2_globals->class;
Tony Lindgren0e564842008-10-06 15:49:16 +0300418 tap_base = omap2_globals->tap;
419
Tony Lindgrena8823142008-12-10 17:36:30 -0800420 if (cpu_is_omap34xx())
Tony Lindgren0e564842008-10-06 15:49:16 +0300421 tap_prod_id = 0x0210;
422 else
423 tap_prod_id = 0x0208;
424}