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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
Kan-Ru Chen2e130fc2010-08-02 14:21:41 +030028#include <mach/id.h>
29
Paul Walmsley097c5842008-07-03 12:24:45 +030030static struct omap_chip_id omap_chip;
Lauri Leukkunen84a34342008-12-10 17:36:31 -080031static unsigned int omap_revision;
32
Sanjeev Premi8384ce02009-11-22 10:10:53 -080033u32 omap3_features;
Lauri Leukkunen84a34342008-12-10 17:36:31 -080034
35unsigned int omap_rev(void)
36{
37 return omap_revision;
38}
39EXPORT_SYMBOL(omap_rev);
Paul Walmsley097c5842008-07-03 12:24:45 +030040
41/**
42 * omap_chip_is - test whether currently running OMAP matches a chip type
43 * @oc: omap_chip_t to test against
44 *
45 * Test whether the currently-running OMAP chip matches the supplied
46 * chip type 'oc'. Returns 1 upon a match; 0 upon failure.
47 */
48int omap_chip_is(struct omap_chip_id oci)
49{
50 return (oci.oc & omap_chip.oc) ? 1 : 0;
51}
52EXPORT_SYMBOL(omap_chip_is);
53
Kevin Hilman8e25ad92009-06-23 13:30:23 +030054int omap_type(void)
55{
56 u32 val = 0;
57
Felipe Balbiedeae652009-11-22 10:11:24 -080058 if (cpu_is_omap24xx()) {
Kevin Hilman8e25ad92009-06-23 13:30:23 +030059 val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS);
Felipe Balbiedeae652009-11-22 10:11:24 -080060 } else if (cpu_is_omap34xx()) {
Kevin Hilman8e25ad92009-06-23 13:30:23 +030061 val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS);
Santosh Shilimkar737daa02010-02-18 08:59:10 +000062 } else if (cpu_is_omap44xx()) {
63 val = omap_ctrl_readl(OMAP44XX_CONTROL_STATUS);
Felipe Balbiedeae652009-11-22 10:11:24 -080064 } else {
Kevin Hilman8e25ad92009-06-23 13:30:23 +030065 pr_err("Cannot detect omap type!\n");
66 goto out;
67 }
68
69 val &= OMAP2_DEVICETYPE_MASK;
70 val >>= 8;
71
72out:
73 return val;
74}
75EXPORT_SYMBOL(omap_type);
76
77
Tony Lindgrena8823142008-12-10 17:36:30 -080078/*----------------------------------------------------------------------------*/
Paul Walmsley097c5842008-07-03 12:24:45 +030079
Tony Lindgrena8823142008-12-10 17:36:30 -080080#define OMAP_TAP_IDCODE 0x0204
81#define OMAP_TAP_DIE_ID_0 0x0218
82#define OMAP_TAP_DIE_ID_1 0x021C
83#define OMAP_TAP_DIE_ID_2 0x0220
84#define OMAP_TAP_DIE_ID_3 0x0224
Paul Walmsley097c5842008-07-03 12:24:45 +030085
Tony Lindgrena8823142008-12-10 17:36:30 -080086#define read_tap_reg(reg) __raw_readl(tap_base + (reg))
Tony Lindgren0e564842008-10-06 15:49:16 +030087
Tony Lindgrena8823142008-12-10 17:36:30 -080088struct omap_id {
89 u16 hawkeye; /* Silicon type (Hawkeye id) */
90 u8 dev; /* Device type from production_id reg */
Lauri Leukkunen84a34342008-12-10 17:36:31 -080091 u32 type; /* Combined type id copied to omap_revision */
Tony Lindgrena8823142008-12-10 17:36:30 -080092};
Tony Lindgren0e564842008-10-06 15:49:16 +030093
Tony Lindgrena8823142008-12-10 17:36:30 -080094/* Register values to detect the OMAP version */
95static struct omap_id omap_ids[] __initdata = {
96 { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200024 },
97 { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201024 },
98 { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202024 },
99 { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220024 },
100 { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230024 },
101 { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300024 },
102};
Paul Walmsley097c5842008-07-03 12:24:45 +0300103
Tony Lindgrena8823142008-12-10 17:36:30 -0800104static void __iomem *tap_base;
105static u16 tap_prod_id;
Tony Lindgren1dbae812005-11-10 14:26:51 +0000106
Kan-Ru Chen2e130fc2010-08-02 14:21:41 +0300107void omap_get_die_id(struct omap_die_id *odi)
108{
109 odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0);
110 odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1);
111 odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2);
112 odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);
113}
114
Nishanth Menon5ebc0d52010-08-02 14:21:40 +0300115static void __init omap24xx_check_revision(void)
Tony Lindgren1dbae812005-11-10 14:26:51 +0000116{
117 int i, j;
Tony Lindgrena8823142008-12-10 17:36:30 -0800118 u32 idcode, prod_id;
Tony Lindgren1dbae812005-11-10 14:26:51 +0000119 u16 hawkeye;
Tony Lindgrena8823142008-12-10 17:36:30 -0800120 u8 dev_type, rev;
Kan-Ru Chenc46732b2010-08-02 14:21:41 +0300121 struct omap_die_id odi;
Tony Lindgren1dbae812005-11-10 14:26:51 +0000122
123 idcode = read_tap_reg(OMAP_TAP_IDCODE);
Tony Lindgren0e564842008-10-06 15:49:16 +0300124 prod_id = read_tap_reg(tap_prod_id);
Tony Lindgren1dbae812005-11-10 14:26:51 +0000125 hawkeye = (idcode >> 12) & 0xffff;
126 rev = (idcode >> 28) & 0x0f;
127 dev_type = (prod_id >> 16) & 0x0f;
Kan-Ru Chenc46732b2010-08-02 14:21:41 +0300128 omap_get_die_id(&odi);
Tony Lindgren1dbae812005-11-10 14:26:51 +0000129
Paul Walmsley097c5842008-07-03 12:24:45 +0300130 pr_debug("OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n",
131 idcode, rev, hawkeye, (idcode >> 1) & 0x7ff);
Kan-Ru Chenc46732b2010-08-02 14:21:41 +0300132 pr_debug("OMAP_TAP_DIE_ID_0: 0x%08x\n", odi.id_0);
Paul Walmsley097c5842008-07-03 12:24:45 +0300133 pr_debug("OMAP_TAP_DIE_ID_1: 0x%08x DEV_REV: %i\n",
Kan-Ru Chenc46732b2010-08-02 14:21:41 +0300134 odi.id_1, (odi.id_1 >> 28) & 0xf);
135 pr_debug("OMAP_TAP_DIE_ID_2: 0x%08x\n", odi.id_2);
136 pr_debug("OMAP_TAP_DIE_ID_3: 0x%08x\n", odi.id_3);
Paul Walmsley097c5842008-07-03 12:24:45 +0300137 pr_debug("OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n",
138 prod_id, dev_type);
139
Tony Lindgren1dbae812005-11-10 14:26:51 +0000140 /* Check hawkeye ids */
141 for (i = 0; i < ARRAY_SIZE(omap_ids); i++) {
142 if (hawkeye == omap_ids[i].hawkeye)
143 break;
144 }
145
146 if (i == ARRAY_SIZE(omap_ids)) {
147 printk(KERN_ERR "Unknown OMAP CPU id\n");
148 return;
149 }
150
151 for (j = i; j < ARRAY_SIZE(omap_ids); j++) {
152 if (dev_type == omap_ids[j].dev)
153 break;
154 }
155
156 if (j == ARRAY_SIZE(omap_ids)) {
157 printk(KERN_ERR "Unknown OMAP device type. "
158 "Handling it as OMAP%04x\n",
159 omap_ids[i].type >> 16);
160 j = i;
161 }
Tony Lindgren1dbae812005-11-10 14:26:51 +0000162
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800163 pr_info("OMAP%04x", omap_rev() >> 16);
164 if ((omap_rev() >> 8) & 0x0f)
165 pr_info("ES%x", (omap_rev() >> 12) & 0xf);
Paul Walmsley097c5842008-07-03 12:24:45 +0300166 pr_info("\n");
Tony Lindgren1dbae812005-11-10 14:26:51 +0000167}
168
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800169#define OMAP3_CHECK_FEATURE(status,feat) \
170 if (((status & OMAP3_ ##feat## _MASK) \
171 >> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \
172 omap3_features |= OMAP3_HAS_ ##feat; \
173 }
174
Nishanth Menon5ebc0d52010-08-02 14:21:40 +0300175static void __init omap3_check_features(void)
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800176{
177 u32 status;
178
179 omap3_features = 0;
180
181 status = omap_ctrl_readl(OMAP3_CONTROL_OMAP_STATUS);
182
183 OMAP3_CHECK_FEATURE(status, L2CACHE);
184 OMAP3_CHECK_FEATURE(status, IVA);
185 OMAP3_CHECK_FEATURE(status, SGX);
186 OMAP3_CHECK_FEATURE(status, NEON);
187 OMAP3_CHECK_FEATURE(status, ISP);
Vishwanath BS7356f0b2010-02-22 22:09:10 -0700188 if (cpu_is_omap3630())
189 omap3_features |= OMAP3_HAS_192MHZ_CLK;
stanley.miaoad0c63f2010-08-02 14:21:40 +0300190 if (!cpu_is_omap3505() && !cpu_is_omap3517())
191 omap3_features |= OMAP3_HAS_IO_WAKEUP;
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800192
193 /*
194 * TODO: Get additional info (where applicable)
195 * e.g. Size of L2 cache.
196 */
197}
198
Nishanth Menon5ebc0d52010-08-02 14:21:40 +0300199static void __init omap3_check_revision(void)
Tony Lindgrena8823142008-12-10 17:36:30 -0800200{
201 u32 cpuid, idcode;
202 u16 hawkeye;
203 u8 rev;
Tony Lindgrena8823142008-12-10 17:36:30 -0800204
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800205 omap_chip.oc = CHIP_IS_OMAP3430;
206
Tony Lindgrena8823142008-12-10 17:36:30 -0800207 /*
208 * We cannot access revision registers on ES1.0.
209 * If the processor type is Cortex-A8 and the revision is 0x0
210 * it means its Cortex r0p0 which is 3430 ES1.0.
211 */
212 cpuid = read_cpuid(CPUID_ID);
213 if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) {
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800214 omap_revision = OMAP3430_REV_ES1_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800215 omap_chip.oc |= CHIP_IS_OMAP3430ES1;
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800216 return;
Tony Lindgrena8823142008-12-10 17:36:30 -0800217 }
218
219 /*
220 * Detection for 34xx ES2.0 and above can be done with just
221 * hawkeye and rev. See TRM 1.5.2 Device Identification.
222 * Note that rev does not map directly to our defined processor
223 * revision numbers as ES1.0 uses value 0.
224 */
225 idcode = read_tap_reg(OMAP_TAP_IDCODE);
226 hawkeye = (idcode >> 12) & 0xffff;
227 rev = (idcode >> 28) & 0xff;
228
Nishanth Menon2456a102009-11-22 10:10:56 -0800229 switch (hawkeye) {
230 case 0xb7ae:
231 /* Handle 34xx/35xx devices */
Tony Lindgrena8823142008-12-10 17:36:30 -0800232 switch (rev) {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800233 case 0: /* Take care of early samples */
234 case 1:
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800235 omap_revision = OMAP3430_REV_ES2_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800236 omap_chip.oc |= CHIP_IS_OMAP3430ES2;
Tony Lindgrena8823142008-12-10 17:36:30 -0800237 break;
238 case 2:
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800239 omap_revision = OMAP3430_REV_ES2_1;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800240 omap_chip.oc |= CHIP_IS_OMAP3430ES2;
Tony Lindgrena8823142008-12-10 17:36:30 -0800241 break;
242 case 3:
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800243 omap_revision = OMAP3430_REV_ES3_0;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800244 omap_chip.oc |= CHIP_IS_OMAP3430ES3_0;
Tony Lindgrena8823142008-12-10 17:36:30 -0800245 break;
Tony Lindgren187e6882009-01-29 08:57:16 -0800246 case 4:
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800247 omap_revision = OMAP3430_REV_ES3_1;
248 omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
249 break;
250 case 7:
Felipe Balbiedeae652009-11-22 10:11:24 -0800251 /* FALLTHROUGH */
Tony Lindgrena8823142008-12-10 17:36:30 -0800252 default:
253 /* Use the latest known revision as default */
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800254 omap_revision = OMAP3430_REV_ES3_1_2;
255
256 /* REVISIT: Add CHIP_IS_OMAP3430ES3_1_2? */
257 omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
Tony Lindgrena8823142008-12-10 17:36:30 -0800258 }
Nishanth Menon2456a102009-11-22 10:10:56 -0800259 break;
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800260 case 0xb868:
261 /* Handle OMAP35xx/AM35xx devices
262 *
263 * Set the device to be OMAP3505 here. Actual device
264 * is identified later based on the features.
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800265 *
266 * REVISIT: AM3505/AM3517 should have their own CHIP_IS
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800267 */
268 omap_revision = OMAP3505_REV(rev);
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800269 omap_chip.oc |= CHIP_IS_OMAP3430ES3_1;
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800270 break;
Felipe Balbiedeae652009-11-22 10:11:24 -0800271 case 0xb891:
Anand Gadiyarb0a1a6c2010-08-03 19:59:24 +0000272 /* Handle 36xx devices */
273 omap_chip.oc |= CHIP_IS_OMAP3630ES1;
274
275 switch(rev) {
276 case 0: /* Take care of early samples */
277 omap_revision = OMAP3630_REV_ES1_0;
278 break;
279 case 1:
280 omap_revision = OMAP3630_REV_ES1_1;
281 omap_chip.oc |= CHIP_IS_OMAP3630ES1_1;
282 break;
283 case 2:
284 default:
285 omap_revision = OMAP3630_REV_ES1_2;
286 omap_chip.oc |= CHIP_IS_OMAP3630ES1_2;
287 break;
288 }
Nishanth Menon2456a102009-11-22 10:10:56 -0800289 default:
290 /* Unknown default to latest silicon rev as default*/
Anand Gadiyarb0a1a6c2010-08-03 19:59:24 +0000291 omap_revision = OMAP3630_REV_ES1_2;
292 omap_chip.oc |= CHIP_IS_OMAP3630ES1_2;
Tony Lindgrena8823142008-12-10 17:36:30 -0800293 }
Tony Lindgrena8823142008-12-10 17:36:30 -0800294}
295
Nishanth Menon5ebc0d52010-08-02 14:21:40 +0300296static void __init omap4_check_revision(void)
Santosh Shilimkarb570e0e2009-12-11 16:16:34 -0800297{
298 u32 idcode;
299 u16 hawkeye;
300 u8 rev;
301 char *rev_name = "ES1.0";
302
303 /*
304 * The IC rev detection is done with hawkeye and rev.
305 * Note that rev does not map directly to defined processor
306 * revision numbers as ES1.0 uses value 0.
307 */
308 idcode = read_tap_reg(OMAP_TAP_IDCODE);
309 hawkeye = (idcode >> 12) & 0xffff;
310 rev = (idcode >> 28) & 0xff;
311
312 if ((hawkeye == 0xb852) && (rev == 0x0)) {
313 omap_revision = OMAP4430_REV_ES1_0;
Abhijit Pagarec6a6e6e2010-01-26 20:12:51 -0700314 omap_chip.oc |= CHIP_IS_OMAP4430ES1;
Santosh Shilimkarb570e0e2009-12-11 16:16:34 -0800315 pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name);
316 return;
317 }
318
319 pr_err("Unknown OMAP4 CPU id\n");
320}
321
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800322#define OMAP3_SHOW_FEATURE(feat) \
Kevin Hilmancedf9002009-11-22 10:11:13 -0800323 if (omap3_has_ ##feat()) \
324 printk(#feat" ");
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800325
Nishanth Menon5ebc0d52010-08-02 14:21:40 +0300326static void __init omap3_cpuinfo(void)
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800327{
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800328 u8 rev = GET_OMAP_REVISION();
329 char cpu_name[16], cpu_rev[16];
330
331 /* OMAP3430 and OMAP3530 are assumed to be same.
332 *
333 * OMAP3525, OMAP3515 and OMAP3503 can be detected only based
334 * on available features. Upon detection, update the CPU id
335 * and CPU class bits.
336 */
Felipe Balbiedeae652009-11-22 10:11:24 -0800337 if (cpu_is_omap3630()) {
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800338 strcpy(cpu_name, "OMAP3630");
Felipe Balbiedeae652009-11-22 10:11:24 -0800339 } else if (cpu_is_omap3505()) {
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800340 /*
341 * AM35xx devices
342 */
343 if (omap3_has_sgx()) {
344 omap_revision = OMAP3517_REV(rev);
345 strcpy(cpu_name, "AM3517");
Felipe Balbiedeae652009-11-22 10:11:24 -0800346 } else {
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800347 /* Already set in omap3_check_revision() */
348 strcpy(cpu_name, "AM3505");
349 }
Felipe Balbiedeae652009-11-22 10:11:24 -0800350 } else if (omap3_has_iva() && omap3_has_sgx()) {
351 /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800352 strcpy(cpu_name, "OMAP3430/3530");
Sergey Lapin0712fb32009-12-11 16:16:37 -0800353 } else if (omap3_has_iva()) {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800354 omap_revision = OMAP3525_REV(rev);
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800355 strcpy(cpu_name, "OMAP3525");
Sergey Lapin0712fb32009-12-11 16:16:37 -0800356 } else if (omap3_has_sgx()) {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800357 omap_revision = OMAP3515_REV(rev);
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800358 strcpy(cpu_name, "OMAP3515");
Felipe Balbiedeae652009-11-22 10:11:24 -0800359 } else {
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800360 omap_revision = OMAP3503_REV(rev);
Sanjeev Premi4cac6012009-11-22 10:10:58 -0800361 strcpy(cpu_name, "OMAP3503");
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800362 }
363
364 switch (rev) {
365 case OMAP_REVBITS_00:
366 strcpy(cpu_rev, "1.0");
367 break;
Anand Gadiyarb0a1a6c2010-08-03 19:59:24 +0000368 case OMAP_REVBITS_01:
369 strcpy(cpu_rev, "1.1");
370 break;
371 case OMAP_REVBITS_02:
372 strcpy(cpu_rev, "1.2");
373 break;
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800374 case OMAP_REVBITS_10:
375 strcpy(cpu_rev, "2.0");
376 break;
377 case OMAP_REVBITS_20:
378 strcpy(cpu_rev, "2.1");
379 break;
380 case OMAP_REVBITS_30:
381 strcpy(cpu_rev, "3.0");
382 break;
383 case OMAP_REVBITS_40:
Felipe Balbiedeae652009-11-22 10:11:24 -0800384 /* FALLTHROUGH */
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800385 default:
386 /* Use the latest known revision as default */
387 strcpy(cpu_rev, "3.1");
388 }
389
Felipe Balbiedeae652009-11-22 10:11:24 -0800390 /* Print verbose information */
Kevin Hilmancedf9002009-11-22 10:11:13 -0800391 pr_info("%s ES%s (", cpu_name, cpu_rev);
Sanjeev Premi048f4bd2009-11-22 10:10:54 -0800392
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800393 OMAP3_SHOW_FEATURE(l2cache);
394 OMAP3_SHOW_FEATURE(iva);
395 OMAP3_SHOW_FEATURE(sgx);
396 OMAP3_SHOW_FEATURE(neon);
397 OMAP3_SHOW_FEATURE(isp);
Vishwanath BS7356f0b2010-02-22 22:09:10 -0700398 OMAP3_SHOW_FEATURE(192mhz_clk);
Kevin Hilmancedf9002009-11-22 10:11:13 -0800399
400 printk(")\n");
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800401}
402
Tony Lindgrena8823142008-12-10 17:36:30 -0800403/*
404 * Try to detect the exact revision of the omap we're running on
405 */
Tony Lindgren5ba02dc2008-12-10 17:36:30 -0800406void __init omap2_check_revision(void)
407{
Tony Lindgrena8823142008-12-10 17:36:30 -0800408 /*
409 * At this point we have an idea about the processor revision set
410 * earlier with omap2_set_globals_tap().
411 */
Felipe Balbiedeae652009-11-22 10:11:24 -0800412 if (cpu_is_omap24xx()) {
Tony Lindgrena8823142008-12-10 17:36:30 -0800413 omap24xx_check_revision();
Felipe Balbiedeae652009-11-22 10:11:24 -0800414 } else if (cpu_is_omap34xx()) {
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800415 omap3_check_revision();
Nishanth Menon05574bb2009-11-22 10:11:12 -0800416 omap3_check_features();
Sanjeev Premi8384ce02009-11-22 10:10:53 -0800417 omap3_cpuinfo();
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800418 return;
Felipe Balbiedeae652009-11-22 10:11:24 -0800419 } else if (cpu_is_omap44xx()) {
Santosh Shilimkarb570e0e2009-12-11 16:16:34 -0800420 omap4_check_revision();
Santosh Shilimkar44169072009-05-28 14:16:04 -0700421 return;
Felipe Balbiedeae652009-11-22 10:11:24 -0800422 } else {
Tony Lindgrena8823142008-12-10 17:36:30 -0800423 pr_err("OMAP revision unknown, please fix!\n");
Felipe Balbiedeae652009-11-22 10:11:24 -0800424 }
Tony Lindgrena8823142008-12-10 17:36:30 -0800425
426 /*
427 * OK, now we know the exact revision. Initialize omap_chip bits
428 * for powerdowmain and clockdomain code.
429 */
430 if (cpu_is_omap243x()) {
431 /* Currently only supports 2430ES2.1 and 2430-all */
432 omap_chip.oc |= CHIP_IS_OMAP2430;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800433 return;
Tony Lindgrena8823142008-12-10 17:36:30 -0800434 } else if (cpu_is_omap242x()) {
435 /* Currently only supports 2420ES2.1.1 and 2420-all */
436 omap_chip.oc |= CHIP_IS_OMAP2420;
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800437 return;
Tony Lindgrena8823142008-12-10 17:36:30 -0800438 }
Tony Lindgrene9acb9b2010-01-19 15:40:26 -0800439
440 pr_err("Uninitialized omap_chip, please fix!\n");
Tony Lindgren5ba02dc2008-12-10 17:36:30 -0800441}
442
Tony Lindgrena8823142008-12-10 17:36:30 -0800443/*
444 * Set up things for map_io and processor detection later on. Gets called
445 * pretty much first thing from board init. For multi-omap, this gets
446 * cpu_is_omapxxxx() working accurately enough for map_io. Then we'll try to
447 * detect the exact revision later on in omap2_detect_revision() once map_io
448 * is done.
449 */
Tony Lindgren0e564842008-10-06 15:49:16 +0300450void __init omap2_set_globals_tap(struct omap_globals *omap2_globals)
451{
Lauri Leukkunen84a34342008-12-10 17:36:31 -0800452 omap_revision = omap2_globals->class;
Tony Lindgren0e564842008-10-06 15:49:16 +0300453 tap_base = omap2_globals->tap;
454
Tony Lindgrena8823142008-12-10 17:36:30 -0800455 if (cpu_is_omap34xx())
Tony Lindgren0e564842008-10-06 15:49:16 +0300456 tap_prod_id = 0x0210;
457 else
458 tap_prod_id = 0x0208;
459}