Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 1 | /* |
| 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 | * |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 9 | * Copyright (C) 2009-11 Texas Instruments |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 10 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 11 | * |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 12 | * 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 Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 17 | #include <linux/module.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/init.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 20 | #include <linux/io.h> |
Linus Walleij | de26804 | 2013-09-05 09:29:18 +0200 | [diff] [blame] | 21 | #include <linux/random.h> |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 22 | #include <linux/slab.h> |
| 23 | |
| 24 | #ifdef CONFIG_SOC_BUS |
| 25 | #include <linux/sys_soc.h> |
| 26 | #endif |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 27 | |
Russell King | 0ba8b9b | 2008-08-10 18:08:10 +0100 | [diff] [blame] | 28 | #include <asm/cputype.h> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 29 | |
Tony Lindgren | 4e65331 | 2011-11-10 22:45:17 +0100 | [diff] [blame] | 30 | #include "common.h" |
Syed Mohammed Khasim | 72d0f1c | 2006-12-06 17:14:05 -0800 | [diff] [blame] | 31 | |
Tony Lindgren | 4952af4 | 2012-09-19 10:33:40 -0700 | [diff] [blame] | 32 | #include "id.h" |
Kan-Ru Chen | 2e130fc | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 33 | |
Tony Lindgren | dbc0416 | 2012-08-31 10:59:07 -0700 | [diff] [blame] | 34 | #include "soc.h" |
Paul Walmsley | 4814ced | 2010-10-08 11:40:20 -0600 | [diff] [blame] | 35 | #include "control.h" |
| 36 | |
Ivan Khoronzhuk | 42a1cc9 | 2012-11-14 12:10:37 -0800 | [diff] [blame] | 37 | #define OMAP4_SILICON_TYPE_STANDARD 0x01 |
| 38 | #define OMAP4_SILICON_TYPE_PERFORMANCE 0x02 |
| 39 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 40 | #define OMAP_SOC_MAX_NAME_LENGTH 16 |
| 41 | |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 42 | static unsigned int omap_revision; |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 43 | static char soc_name[OMAP_SOC_MAX_NAME_LENGTH]; |
| 44 | static char soc_rev[OMAP_SOC_MAX_NAME_LENGTH]; |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 45 | u32 omap_features; |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 46 | |
| 47 | unsigned int omap_rev(void) |
| 48 | { |
| 49 | return omap_revision; |
| 50 | } |
| 51 | EXPORT_SYMBOL(omap_rev); |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 52 | |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 53 | int omap_type(void) |
| 54 | { |
| 55 | u32 val = 0; |
| 56 | |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 57 | if (cpu_is_omap24xx()) { |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 58 | val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS); |
Afzal Mohammed | 49cc485 | 2013-05-27 20:06:33 +0530 | [diff] [blame] | 59 | } else if (soc_is_am33xx() || soc_is_am43xx()) { |
Afzal Mohammed | fb3cfb1 | 2012-03-05 16:11:01 -0800 | [diff] [blame] | 60 | val = omap_ctrl_readl(AM33XX_CONTROL_STATUS); |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 61 | } else if (cpu_is_omap34xx()) { |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 62 | val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS); |
Santosh Shilimkar | 737daa0 | 2010-02-18 08:59:10 +0000 | [diff] [blame] | 63 | } else if (cpu_is_omap44xx()) { |
Santosh Shilimkar | dcf5ef3 | 2010-09-27 14:02:58 -0600 | [diff] [blame] | 64 | val = omap_ctrl_readl(OMAP4_CTRL_MODULE_CORE_STATUS); |
R Sricharan | 6852215 | 2013-02-06 20:25:40 +0530 | [diff] [blame] | 65 | } else if (soc_is_omap54xx() || soc_is_dra7xx()) { |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 66 | val = omap_ctrl_readl(OMAP5XXX_CONTROL_STATUS); |
| 67 | val &= OMAP5_DEVICETYPE_MASK; |
| 68 | val >>= 6; |
| 69 | goto out; |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 70 | } else { |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 71 | pr_err("Cannot detect omap type!\n"); |
| 72 | goto out; |
| 73 | } |
| 74 | |
| 75 | val &= OMAP2_DEVICETYPE_MASK; |
| 76 | val >>= 8; |
| 77 | |
| 78 | out: |
| 79 | return val; |
| 80 | } |
| 81 | EXPORT_SYMBOL(omap_type); |
| 82 | |
| 83 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 84 | /*----------------------------------------------------------------------------*/ |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 85 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 86 | #define OMAP_TAP_IDCODE 0x0204 |
| 87 | #define OMAP_TAP_DIE_ID_0 0x0218 |
| 88 | #define OMAP_TAP_DIE_ID_1 0x021C |
| 89 | #define OMAP_TAP_DIE_ID_2 0x0220 |
| 90 | #define OMAP_TAP_DIE_ID_3 0x0224 |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 91 | |
Andy Green | b235e00 | 2011-03-12 22:50:54 +0000 | [diff] [blame] | 92 | #define OMAP_TAP_DIE_ID_44XX_0 0x0200 |
| 93 | #define OMAP_TAP_DIE_ID_44XX_1 0x0208 |
| 94 | #define OMAP_TAP_DIE_ID_44XX_2 0x020c |
| 95 | #define OMAP_TAP_DIE_ID_44XX_3 0x0210 |
| 96 | |
Victor Kamensky | edfaf05 | 2014-04-15 20:37:46 +0300 | [diff] [blame] | 97 | #define read_tap_reg(reg) readl_relaxed(tap_base + (reg)) |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 98 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 99 | struct omap_id { |
| 100 | u16 hawkeye; /* Silicon type (Hawkeye id) */ |
| 101 | u8 dev; /* Device type from production_id reg */ |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 102 | u32 type; /* Combined type id copied to omap_revision */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 103 | }; |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 104 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 105 | /* Register values to detect the OMAP version */ |
| 106 | static struct omap_id omap_ids[] __initdata = { |
| 107 | { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200024 }, |
| 108 | { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201024 }, |
| 109 | { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202024 }, |
| 110 | { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220024 }, |
| 111 | { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230024 }, |
| 112 | { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300024 }, |
| 113 | }; |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 114 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 115 | static void __iomem *tap_base; |
| 116 | static u16 tap_prod_id; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 117 | |
Kan-Ru Chen | 2e130fc | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 118 | void omap_get_die_id(struct omap_die_id *odi) |
| 119 | { |
R Sricharan | 6852215 | 2013-02-06 20:25:40 +0530 | [diff] [blame] | 120 | if (cpu_is_omap44xx() || soc_is_omap54xx() || soc_is_dra7xx()) { |
Andy Green | b235e00 | 2011-03-12 22:50:54 +0000 | [diff] [blame] | 121 | odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_0); |
| 122 | odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_1); |
| 123 | odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_2); |
| 124 | odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_3); |
| 125 | |
| 126 | return; |
| 127 | } |
Kan-Ru Chen | 2e130fc | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 128 | odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0); |
| 129 | odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1); |
| 130 | odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2); |
| 131 | odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3); |
| 132 | } |
| 133 | |
Linus Walleij | de26804 | 2013-09-05 09:29:18 +0200 | [diff] [blame] | 134 | static int __init omap_feed_randpool(void) |
| 135 | { |
| 136 | struct omap_die_id odi; |
| 137 | |
| 138 | /* Throw the die ID into the entropy pool at boot */ |
| 139 | omap_get_die_id(&odi); |
| 140 | add_device_randomness(&odi, sizeof(odi)); |
| 141 | return 0; |
| 142 | } |
| 143 | omap_device_initcall(omap_feed_randpool); |
| 144 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 145 | void __init omap2xxx_check_revision(void) |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 146 | { |
| 147 | int i, j; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 148 | u32 idcode, prod_id; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 149 | u16 hawkeye; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 150 | u8 dev_type, rev; |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 151 | struct omap_die_id odi; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 152 | |
| 153 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 154 | prod_id = read_tap_reg(tap_prod_id); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 155 | hawkeye = (idcode >> 12) & 0xffff; |
| 156 | rev = (idcode >> 28) & 0x0f; |
| 157 | dev_type = (prod_id >> 16) & 0x0f; |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 158 | omap_get_die_id(&odi); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 159 | |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 160 | pr_debug("OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n", |
| 161 | idcode, rev, hawkeye, (idcode >> 1) & 0x7ff); |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 162 | pr_debug("OMAP_TAP_DIE_ID_0: 0x%08x\n", odi.id_0); |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 163 | pr_debug("OMAP_TAP_DIE_ID_1: 0x%08x DEV_REV: %i\n", |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 164 | odi.id_1, (odi.id_1 >> 28) & 0xf); |
| 165 | pr_debug("OMAP_TAP_DIE_ID_2: 0x%08x\n", odi.id_2); |
| 166 | pr_debug("OMAP_TAP_DIE_ID_3: 0x%08x\n", odi.id_3); |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 167 | pr_debug("OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n", |
| 168 | prod_id, dev_type); |
| 169 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 170 | /* Check hawkeye ids */ |
| 171 | for (i = 0; i < ARRAY_SIZE(omap_ids); i++) { |
| 172 | if (hawkeye == omap_ids[i].hawkeye) |
| 173 | break; |
| 174 | } |
| 175 | |
| 176 | if (i == ARRAY_SIZE(omap_ids)) { |
| 177 | printk(KERN_ERR "Unknown OMAP CPU id\n"); |
| 178 | return; |
| 179 | } |
| 180 | |
| 181 | for (j = i; j < ARRAY_SIZE(omap_ids); j++) { |
| 182 | if (dev_type == omap_ids[j].dev) |
| 183 | break; |
| 184 | } |
| 185 | |
| 186 | if (j == ARRAY_SIZE(omap_ids)) { |
Paul Walmsley | 7852ec0 | 2012-07-26 00:54:26 -0600 | [diff] [blame] | 187 | pr_err("Unknown OMAP device type. Handling it as OMAP%04x\n", |
| 188 | omap_ids[i].type >> 16); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 189 | j = i; |
| 190 | } |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 191 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 192 | sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); |
| 193 | sprintf(soc_rev, "ES%x", (omap_rev() >> 12) & 0xf); |
| 194 | |
| 195 | pr_info("%s", soc_name); |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 196 | if ((omap_rev() >> 8) & 0x0f) |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 197 | pr_info("%s", soc_rev); |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 198 | pr_info("\n"); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 199 | } |
| 200 | |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 201 | #define OMAP3_SHOW_FEATURE(feat) \ |
| 202 | if (omap3_has_ ##feat()) \ |
| 203 | printk(#feat" "); |
| 204 | |
| 205 | static void __init omap3_cpuinfo(void) |
| 206 | { |
| 207 | const char *cpu_name; |
| 208 | |
| 209 | /* |
| 210 | * OMAP3430 and OMAP3530 are assumed to be same. |
| 211 | * |
| 212 | * OMAP3525, OMAP3515 and OMAP3503 can be detected only based |
| 213 | * on available features. Upon detection, update the CPU id |
| 214 | * and CPU class bits. |
| 215 | */ |
| 216 | if (cpu_is_omap3630()) { |
| 217 | cpu_name = "OMAP3630"; |
Kevin Hilman | 68a88b9 | 2012-04-30 16:37:10 -0700 | [diff] [blame] | 218 | } else if (soc_is_am35xx()) { |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 219 | cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505"; |
| 220 | } else if (cpu_is_ti816x()) { |
| 221 | cpu_name = "TI816X"; |
Vaibhav Hiremath | 971b8a9 | 2012-07-05 08:05:15 -0700 | [diff] [blame] | 222 | } else if (soc_is_am335x()) { |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 223 | cpu_name = "AM335X"; |
Afzal Mohammed | c04bbaa | 2013-05-27 20:06:01 +0530 | [diff] [blame] | 224 | } else if (soc_is_am437x()) { |
| 225 | cpu_name = "AM437x"; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 226 | } else if (cpu_is_ti814x()) { |
| 227 | cpu_name = "TI814X"; |
| 228 | } else if (omap3_has_iva() && omap3_has_sgx()) { |
| 229 | /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */ |
| 230 | cpu_name = "OMAP3430/3530"; |
| 231 | } else if (omap3_has_iva()) { |
| 232 | cpu_name = "OMAP3525"; |
| 233 | } else if (omap3_has_sgx()) { |
| 234 | cpu_name = "OMAP3515"; |
| 235 | } else { |
| 236 | cpu_name = "OMAP3503"; |
| 237 | } |
| 238 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 239 | sprintf(soc_name, "%s", cpu_name); |
| 240 | |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 241 | /* Print verbose information */ |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 242 | pr_info("%s %s (", soc_name, soc_rev); |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 243 | |
| 244 | OMAP3_SHOW_FEATURE(l2cache); |
| 245 | OMAP3_SHOW_FEATURE(iva); |
| 246 | OMAP3_SHOW_FEATURE(sgx); |
| 247 | OMAP3_SHOW_FEATURE(neon); |
| 248 | OMAP3_SHOW_FEATURE(isp); |
| 249 | OMAP3_SHOW_FEATURE(192mhz_clk); |
| 250 | |
| 251 | printk(")\n"); |
| 252 | } |
| 253 | |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 254 | #define OMAP3_CHECK_FEATURE(status,feat) \ |
| 255 | if (((status & OMAP3_ ##feat## _MASK) \ |
| 256 | >> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \ |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 257 | omap_features |= OMAP3_HAS_ ##feat; \ |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 258 | } |
| 259 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 260 | void __init omap3xxx_check_features(void) |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 261 | { |
| 262 | u32 status; |
| 263 | |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 264 | omap_features = 0; |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 265 | |
| 266 | status = omap_ctrl_readl(OMAP3_CONTROL_OMAP_STATUS); |
| 267 | |
| 268 | OMAP3_CHECK_FEATURE(status, L2CACHE); |
| 269 | OMAP3_CHECK_FEATURE(status, IVA); |
| 270 | OMAP3_CHECK_FEATURE(status, SGX); |
| 271 | OMAP3_CHECK_FEATURE(status, NEON); |
| 272 | OMAP3_CHECK_FEATURE(status, ISP); |
Vishwanath BS | 7356f0b | 2010-02-22 22:09:10 -0700 | [diff] [blame] | 273 | if (cpu_is_omap3630()) |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 274 | omap_features |= OMAP3_HAS_192MHZ_CLK; |
Paul Walmsley | b02b917 | 2011-10-06 17:18:45 -0600 | [diff] [blame] | 275 | if (cpu_is_omap3430() || cpu_is_omap3630()) |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 276 | omap_features |= OMAP3_HAS_IO_WAKEUP; |
Paul Walmsley | b02b917 | 2011-10-06 17:18:45 -0600 | [diff] [blame] | 277 | if (cpu_is_omap3630() || omap_rev() == OMAP3430_REV_ES3_1 || |
| 278 | omap_rev() == OMAP3430_REV_ES3_1_2) |
| 279 | omap_features |= OMAP3_HAS_IO_CHAIN_CTRL; |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 280 | |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 281 | omap_features |= OMAP3_HAS_SDRC; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 282 | |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 283 | /* |
Mark A. Greer | 1ce0299 | 2012-04-30 16:57:09 -0700 | [diff] [blame] | 284 | * am35x fixups: |
| 285 | * - The am35x Chip ID register has bits 12, 7:5, and 3:2 marked as |
| 286 | * reserved and therefore return 0 when read. Unfortunately, |
| 287 | * OMAP3_CHECK_FEATURE() will interpret some of those zeroes to |
| 288 | * mean that a feature is present even though it isn't so clear |
| 289 | * the incorrectly set feature bits. |
| 290 | */ |
| 291 | if (soc_is_am35xx()) |
| 292 | omap_features &= ~(OMAP3_HAS_IVA | OMAP3_HAS_ISP); |
| 293 | |
| 294 | /* |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 295 | * TODO: Get additional info (where applicable) |
| 296 | * e.g. Size of L2 cache. |
| 297 | */ |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 298 | |
| 299 | omap3_cpuinfo(); |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 300 | } |
| 301 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 302 | void __init omap4xxx_check_features(void) |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 303 | { |
| 304 | u32 si_type; |
| 305 | |
Ivan Khoronzhuk | 42a1cc9 | 2012-11-14 12:10:37 -0800 | [diff] [blame] | 306 | si_type = |
| 307 | (read_tap_reg(OMAP4_CTRL_MODULE_CORE_STD_FUSE_PROD_ID_1) >> 16) & 0x03; |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 308 | |
Ivan Khoronzhuk | 42a1cc9 | 2012-11-14 12:10:37 -0800 | [diff] [blame] | 309 | if (si_type == OMAP4_SILICON_TYPE_PERFORMANCE) |
| 310 | omap_features = OMAP4_HAS_PERF_SILICON; |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 311 | } |
| 312 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 313 | void __init ti81xx_check_features(void) |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 314 | { |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 315 | omap_features = OMAP3_HAS_NEON; |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 316 | omap3_cpuinfo(); |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 317 | } |
| 318 | |
Vaibhav Hiremath | 7bcad17 | 2013-05-17 15:43:41 +0530 | [diff] [blame] | 319 | void __init am33xx_check_features(void) |
| 320 | { |
| 321 | u32 status; |
| 322 | |
| 323 | omap_features = OMAP3_HAS_NEON; |
| 324 | |
| 325 | status = omap_ctrl_readl(AM33XX_DEV_FEATURE); |
| 326 | if (status & AM33XX_SGX_MASK) |
| 327 | omap_features |= OMAP3_HAS_SGX; |
| 328 | |
| 329 | omap3_cpuinfo(); |
| 330 | } |
| 331 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 332 | void __init omap3xxx_check_revision(void) |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 333 | { |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 334 | const char *cpu_rev; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 335 | u32 cpuid, idcode; |
| 336 | u16 hawkeye; |
| 337 | u8 rev; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 338 | |
| 339 | /* |
| 340 | * We cannot access revision registers on ES1.0. |
| 341 | * If the processor type is Cortex-A8 and the revision is 0x0 |
| 342 | * it means its Cortex r0p0 which is 3430 ES1.0. |
| 343 | */ |
Uwe Kleine-König | ac52e83 | 2013-01-30 17:38:21 +0100 | [diff] [blame] | 344 | cpuid = read_cpuid_id(); |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 345 | if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) { |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 346 | omap_revision = OMAP3430_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 347 | cpu_rev = "1.0"; |
Sanjeev Premi | 048f4bd | 2009-11-22 10:10:54 -0800 | [diff] [blame] | 348 | return; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 349 | } |
| 350 | |
| 351 | /* |
| 352 | * Detection for 34xx ES2.0 and above can be done with just |
| 353 | * hawkeye and rev. See TRM 1.5.2 Device Identification. |
| 354 | * Note that rev does not map directly to our defined processor |
| 355 | * revision numbers as ES1.0 uses value 0. |
| 356 | */ |
| 357 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 358 | hawkeye = (idcode >> 12) & 0xffff; |
| 359 | rev = (idcode >> 28) & 0xff; |
| 360 | |
Nishanth Menon | 2456a10 | 2009-11-22 10:10:56 -0800 | [diff] [blame] | 361 | switch (hawkeye) { |
| 362 | case 0xb7ae: |
| 363 | /* Handle 34xx/35xx devices */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 364 | switch (rev) { |
Sanjeev Premi | 048f4bd | 2009-11-22 10:10:54 -0800 | [diff] [blame] | 365 | case 0: /* Take care of early samples */ |
| 366 | case 1: |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 367 | omap_revision = OMAP3430_REV_ES2_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 368 | cpu_rev = "2.0"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 369 | break; |
| 370 | case 2: |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 371 | omap_revision = OMAP3430_REV_ES2_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 372 | cpu_rev = "2.1"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 373 | break; |
| 374 | case 3: |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 375 | omap_revision = OMAP3430_REV_ES3_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 376 | cpu_rev = "3.0"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 377 | break; |
Tony Lindgren | 187e688 | 2009-01-29 08:57:16 -0800 | [diff] [blame] | 378 | case 4: |
Tony Lindgren | e9acb9b | 2010-01-19 15:40:26 -0800 | [diff] [blame] | 379 | omap_revision = OMAP3430_REV_ES3_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 380 | cpu_rev = "3.1"; |
Tony Lindgren | e9acb9b | 2010-01-19 15:40:26 -0800 | [diff] [blame] | 381 | break; |
| 382 | case 7: |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 383 | /* FALLTHROUGH */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 384 | default: |
| 385 | /* Use the latest known revision as default */ |
Tony Lindgren | e9acb9b | 2010-01-19 15:40:26 -0800 | [diff] [blame] | 386 | omap_revision = OMAP3430_REV_ES3_1_2; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 387 | cpu_rev = "3.1.2"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 388 | } |
Nishanth Menon | 2456a10 | 2009-11-22 10:10:56 -0800 | [diff] [blame] | 389 | break; |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 390 | case 0xb868: |
Paul Walmsley | 1f1b035 | 2011-09-13 19:52:13 -0600 | [diff] [blame] | 391 | /* |
| 392 | * Handle OMAP/AM 3505/3517 devices |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 393 | * |
Paul Walmsley | 1f1b035 | 2011-09-13 19:52:13 -0600 | [diff] [blame] | 394 | * Set the device to be OMAP3517 here. Actual device |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 395 | * is identified later based on the features. |
| 396 | */ |
Paul Walmsley | 9ed2ba7 | 2011-09-13 19:52:14 -0600 | [diff] [blame] | 397 | switch (rev) { |
| 398 | case 0: |
Kevin Hilman | 68a88b9 | 2012-04-30 16:37:10 -0700 | [diff] [blame] | 399 | omap_revision = AM35XX_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 400 | cpu_rev = "1.0"; |
Paul Walmsley | 9ed2ba7 | 2011-09-13 19:52:14 -0600 | [diff] [blame] | 401 | break; |
| 402 | case 1: |
| 403 | /* FALLTHROUGH */ |
| 404 | default: |
Kevin Hilman | 68a88b9 | 2012-04-30 16:37:10 -0700 | [diff] [blame] | 405 | omap_revision = AM35XX_REV_ES1_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 406 | cpu_rev = "1.1"; |
Paul Walmsley | 9ed2ba7 | 2011-09-13 19:52:14 -0600 | [diff] [blame] | 407 | } |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 408 | break; |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 409 | case 0xb891: |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 410 | /* Handle 36xx devices */ |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 411 | |
| 412 | switch(rev) { |
| 413 | case 0: /* Take care of early samples */ |
| 414 | omap_revision = OMAP3630_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 415 | cpu_rev = "1.0"; |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 416 | break; |
| 417 | case 1: |
| 418 | omap_revision = OMAP3630_REV_ES1_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 419 | cpu_rev = "1.1"; |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 420 | break; |
| 421 | case 2: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 422 | /* FALLTHROUGH */ |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 423 | default: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 424 | omap_revision = OMAP3630_REV_ES1_2; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 425 | cpu_rev = "1.2"; |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 426 | } |
Nishanth Menon | 77c0870 | 2010-08-16 09:21:19 +0300 | [diff] [blame] | 427 | break; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 428 | case 0xb81e: |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 429 | switch (rev) { |
| 430 | case 0: |
| 431 | omap_revision = TI8168_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 432 | cpu_rev = "1.0"; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 433 | break; |
| 434 | case 1: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 435 | omap_revision = TI8168_REV_ES1_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 436 | cpu_rev = "1.1"; |
Paul Walmsley | 3b32b7d | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 437 | break; |
Aida Mynzhasova | a5f93d9 | 2013-05-30 14:21:01 +0400 | [diff] [blame] | 438 | case 2: |
| 439 | omap_revision = TI8168_REV_ES2_0; |
| 440 | cpu_rev = "2.0"; |
| 441 | break; |
| 442 | case 3: |
| 443 | /* FALLTHROUGH */ |
| 444 | default: |
| 445 | omap_revision = TI8168_REV_ES2_1; |
| 446 | cpu_rev = "2.1"; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 447 | } |
| 448 | break; |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 449 | case 0xb944: |
AnilKumar Ch | 5af044f | 2013-02-01 15:58:22 +0530 | [diff] [blame] | 450 | switch (rev) { |
| 451 | case 0: |
| 452 | omap_revision = AM335X_REV_ES1_0; |
| 453 | cpu_rev = "1.0"; |
| 454 | break; |
| 455 | case 1: |
AnilKumar Ch | 5af044f | 2013-02-01 15:58:22 +0530 | [diff] [blame] | 456 | omap_revision = AM335X_REV_ES2_0; |
| 457 | cpu_rev = "2.0"; |
| 458 | break; |
Vaibhav Hiremath | d240ef3 | 2013-05-08 16:48:02 -0700 | [diff] [blame] | 459 | case 2: |
| 460 | /* FALLTHROUGH */ |
| 461 | default: |
| 462 | omap_revision = AM335X_REV_ES2_1; |
| 463 | cpu_rev = "2.1"; |
| 464 | break; |
AnilKumar Ch | 5af044f | 2013-02-01 15:58:22 +0530 | [diff] [blame] | 465 | } |
Vaibhav Hiremath | c2d1355 | 2012-01-23 13:26:47 +0530 | [diff] [blame] | 466 | break; |
Afzal Mohammed | c04bbaa | 2013-05-27 20:06:01 +0530 | [diff] [blame] | 467 | case 0xb98c: |
Lokesh Vutla | 4a2ed4c | 2014-02-07 15:51:24 +0530 | [diff] [blame] | 468 | switch (rev) { |
| 469 | case 0: |
| 470 | omap_revision = AM437X_REV_ES1_0; |
| 471 | cpu_rev = "1.0"; |
| 472 | break; |
| 473 | case 1: |
| 474 | /* FALLTHROUGH */ |
| 475 | default: |
| 476 | omap_revision = AM437X_REV_ES1_1; |
| 477 | cpu_rev = "1.1"; |
| 478 | break; |
| 479 | } |
Afzal Mohammed | c04bbaa | 2013-05-27 20:06:01 +0530 | [diff] [blame] | 480 | break; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 481 | case 0xb8f2: |
| 482 | switch (rev) { |
| 483 | case 0: |
| 484 | /* FALLTHROUGH */ |
| 485 | case 1: |
| 486 | omap_revision = TI8148_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 487 | cpu_rev = "1.0"; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 488 | break; |
| 489 | case 2: |
| 490 | omap_revision = TI8148_REV_ES2_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 491 | cpu_rev = "2.0"; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 492 | break; |
| 493 | case 3: |
| 494 | /* FALLTHROUGH */ |
| 495 | default: |
| 496 | omap_revision = TI8148_REV_ES2_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 497 | cpu_rev = "2.1"; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 498 | break; |
| 499 | } |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 500 | break; |
Nishanth Menon | 2456a10 | 2009-11-22 10:10:56 -0800 | [diff] [blame] | 501 | default: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 502 | /* Unknown default to latest silicon rev as default */ |
Paul Walmsley | 3b32b7d | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 503 | omap_revision = OMAP3630_REV_ES1_2; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 504 | cpu_rev = "1.2"; |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 505 | pr_warn("Warning: unknown chip type; assuming OMAP3630ES1.2\n"); |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 506 | } |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 507 | sprintf(soc_rev, "ES%s", cpu_rev); |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 508 | } |
| 509 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 510 | void __init omap4xxx_check_revision(void) |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 511 | { |
| 512 | u32 idcode; |
| 513 | u16 hawkeye; |
| 514 | u8 rev; |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 515 | |
| 516 | /* |
| 517 | * The IC rev detection is done with hawkeye and rev. |
| 518 | * Note that rev does not map directly to defined processor |
| 519 | * revision numbers as ES1.0 uses value 0. |
| 520 | */ |
| 521 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 522 | hawkeye = (idcode >> 12) & 0xffff; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 523 | rev = (idcode >> 28) & 0xf; |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 524 | |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 525 | /* |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 526 | * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0 |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 527 | * Use ARM register to detect the correct ES version |
| 528 | */ |
Leonid Iziumtsev | ec023e4 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 529 | if (!rev && (hawkeye != 0xb94e) && (hawkeye != 0xb975)) { |
Uwe Kleine-König | ac52e83 | 2013-01-30 17:38:21 +0100 | [diff] [blame] | 530 | idcode = read_cpuid_id(); |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 531 | rev = (idcode & 0xf) - 1; |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 532 | } |
| 533 | |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 534 | switch (hawkeye) { |
| 535 | case 0xb852: |
| 536 | switch (rev) { |
| 537 | case 0: |
| 538 | omap_revision = OMAP4430_REV_ES1_0; |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 539 | break; |
| 540 | case 1: |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 541 | default: |
| 542 | omap_revision = OMAP4430_REV_ES2_0; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 543 | } |
| 544 | break; |
| 545 | case 0xb95c: |
| 546 | switch (rev) { |
| 547 | case 3: |
| 548 | omap_revision = OMAP4430_REV_ES2_1; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 549 | break; |
| 550 | case 4: |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 551 | omap_revision = OMAP4430_REV_ES2_2; |
David Anders | 55035c1 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 552 | break; |
| 553 | case 6: |
| 554 | default: |
| 555 | omap_revision = OMAP4430_REV_ES2_3; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 556 | } |
| 557 | break; |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 558 | case 0xb94e: |
| 559 | switch (rev) { |
| 560 | case 0: |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 561 | omap_revision = OMAP4460_REV_ES1_0; |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 562 | break; |
Chris Lalancette | 33ee0db | 2012-05-09 09:45:02 -0700 | [diff] [blame] | 563 | case 2: |
| 564 | default: |
| 565 | omap_revision = OMAP4460_REV_ES1_1; |
| 566 | break; |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 567 | } |
| 568 | break; |
Leonid Iziumtsev | ec023e4 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 569 | case 0xb975: |
| 570 | switch (rev) { |
| 571 | case 0: |
| 572 | default: |
| 573 | omap_revision = OMAP4470_REV_ES1_0; |
| 574 | break; |
| 575 | } |
| 576 | break; |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 577 | default: |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 578 | /* Unknown default to latest silicon rev as default */ |
David Anders | 55035c1 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 579 | omap_revision = OMAP4430_REV_ES2_3; |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 580 | } |
| 581 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 582 | sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); |
| 583 | sprintf(soc_rev, "ES%d.%d", (omap_rev() >> 12) & 0xf, |
| 584 | (omap_rev() >> 8) & 0xf); |
| 585 | pr_info("%s %s\n", soc_name, soc_rev); |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 586 | } |
| 587 | |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 588 | void __init omap5xxx_check_revision(void) |
| 589 | { |
| 590 | u32 idcode; |
| 591 | u16 hawkeye; |
| 592 | u8 rev; |
| 593 | |
| 594 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 595 | hawkeye = (idcode >> 12) & 0xffff; |
| 596 | rev = (idcode >> 28) & 0xff; |
| 597 | switch (hawkeye) { |
| 598 | case 0xb942: |
| 599 | switch (rev) { |
| 600 | case 0: |
Nishanth Menon | aa2f4b1 | 2013-09-18 09:05:42 -0500 | [diff] [blame] | 601 | /* No support for ES1.0 Test chip */ |
| 602 | BUG(); |
Santosh Shilimkar | 5a898a7 | 2013-01-07 19:29:46 +0530 | [diff] [blame] | 603 | case 1: |
| 604 | default: |
| 605 | omap_revision = OMAP5430_REV_ES2_0; |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 606 | } |
| 607 | break; |
| 608 | |
| 609 | case 0xb998: |
| 610 | switch (rev) { |
| 611 | case 0: |
Nishanth Menon | aa2f4b1 | 2013-09-18 09:05:42 -0500 | [diff] [blame] | 612 | /* No support for ES1.0 Test chip */ |
| 613 | BUG(); |
Santosh Shilimkar | 5a898a7 | 2013-01-07 19:29:46 +0530 | [diff] [blame] | 614 | case 1: |
| 615 | default: |
| 616 | omap_revision = OMAP5432_REV_ES2_0; |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 617 | } |
| 618 | break; |
| 619 | |
| 620 | default: |
| 621 | /* Unknown default to latest silicon rev as default*/ |
Santosh Shilimkar | 5a898a7 | 2013-01-07 19:29:46 +0530 | [diff] [blame] | 622 | omap_revision = OMAP5430_REV_ES2_0; |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 623 | } |
| 624 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 625 | sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); |
| 626 | sprintf(soc_rev, "ES%d.0", (omap_rev() >> 12) & 0xf); |
| 627 | |
| 628 | pr_info("%s %s\n", soc_name, soc_rev); |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 629 | } |
| 630 | |
Nishanth Menon | 733d20e | 2014-05-19 10:27:11 -0500 | [diff] [blame] | 631 | void __init dra7xxx_check_revision(void) |
| 632 | { |
| 633 | u32 idcode; |
| 634 | u16 hawkeye; |
| 635 | u8 rev; |
| 636 | |
| 637 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 638 | hawkeye = (idcode >> 12) & 0xffff; |
| 639 | rev = (idcode >> 28) & 0xff; |
| 640 | switch (hawkeye) { |
| 641 | case 0xb990: |
| 642 | switch (rev) { |
| 643 | case 0: |
| 644 | omap_revision = DRA752_REV_ES1_0; |
| 645 | break; |
| 646 | case 1: |
| 647 | default: |
| 648 | omap_revision = DRA752_REV_ES1_1; |
| 649 | } |
| 650 | break; |
| 651 | |
Nishanth Menon | 73d2028 | 2014-05-29 14:05:50 -0500 | [diff] [blame] | 652 | case 0xb9bc: |
| 653 | switch (rev) { |
| 654 | case 0: |
| 655 | omap_revision = DRA722_REV_ES1_0; |
| 656 | break; |
| 657 | default: |
| 658 | /* If we have no new revisions */ |
| 659 | omap_revision = DRA722_REV_ES1_0; |
| 660 | break; |
| 661 | } |
| 662 | break; |
| 663 | |
Nishanth Menon | 733d20e | 2014-05-19 10:27:11 -0500 | [diff] [blame] | 664 | default: |
| 665 | /* Unknown default to latest silicon rev as default*/ |
Hans Wennborg | 6953faf | 2014-08-25 16:15:34 -0700 | [diff] [blame] | 666 | pr_warn("%s: unknown idcode=0x%08x (hawkeye=0x%08x,rev=0x%x)\n", |
Nishanth Menon | 733d20e | 2014-05-19 10:27:11 -0500 | [diff] [blame] | 667 | __func__, idcode, hawkeye, rev); |
| 668 | omap_revision = DRA752_REV_ES1_1; |
| 669 | } |
| 670 | |
| 671 | sprintf(soc_name, "DRA%03x", omap_rev() >> 16); |
| 672 | sprintf(soc_rev, "ES%d.%d", (omap_rev() >> 12) & 0xf, |
| 673 | (omap_rev() >> 8) & 0xf); |
| 674 | |
| 675 | pr_info("%s %s\n", soc_name, soc_rev); |
| 676 | } |
| 677 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 678 | /* |
| 679 | * Set up things for map_io and processor detection later on. Gets called |
| 680 | * pretty much first thing from board init. For multi-omap, this gets |
| 681 | * cpu_is_omapxxxx() working accurately enough for map_io. Then we'll try to |
| 682 | * detect the exact revision later on in omap2_detect_revision() once map_io |
| 683 | * is done. |
| 684 | */ |
Paul Walmsley | b6a4226 | 2012-10-29 20:50:21 -0600 | [diff] [blame] | 685 | void __init omap2_set_globals_tap(u32 class, void __iomem *tap) |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 686 | { |
Paul Walmsley | b6a4226 | 2012-10-29 20:50:21 -0600 | [diff] [blame] | 687 | omap_revision = class; |
| 688 | tap_base = tap; |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 689 | |
Paul Walmsley | b6a4226 | 2012-10-29 20:50:21 -0600 | [diff] [blame] | 690 | /* XXX What is this intended to do? */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 691 | if (cpu_is_omap34xx()) |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 692 | tap_prod_id = 0x0210; |
| 693 | else |
| 694 | tap_prod_id = 0x0208; |
| 695 | } |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 696 | |
| 697 | #ifdef CONFIG_SOC_BUS |
| 698 | |
Sebastian Andrzej Siewior | 415ab32 | 2013-06-06 15:24:38 +0200 | [diff] [blame] | 699 | static const char * const omap_types[] = { |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 700 | [OMAP2_DEVICE_TYPE_TEST] = "TST", |
| 701 | [OMAP2_DEVICE_TYPE_EMU] = "EMU", |
| 702 | [OMAP2_DEVICE_TYPE_SEC] = "HS", |
| 703 | [OMAP2_DEVICE_TYPE_GP] = "GP", |
| 704 | [OMAP2_DEVICE_TYPE_BAD] = "BAD", |
| 705 | }; |
| 706 | |
| 707 | static const char * __init omap_get_family(void) |
| 708 | { |
| 709 | if (cpu_is_omap24xx()) |
| 710 | return kasprintf(GFP_KERNEL, "OMAP2"); |
| 711 | else if (cpu_is_omap34xx()) |
| 712 | return kasprintf(GFP_KERNEL, "OMAP3"); |
| 713 | else if (cpu_is_omap44xx()) |
| 714 | return kasprintf(GFP_KERNEL, "OMAP4"); |
| 715 | else if (soc_is_omap54xx()) |
| 716 | return kasprintf(GFP_KERNEL, "OMAP5"); |
Afzal Mohammed | 7a2e051 | 2014-02-07 15:51:25 +0530 | [diff] [blame] | 717 | else if (soc_is_am43xx()) |
| 718 | return kasprintf(GFP_KERNEL, "AM43xx"); |
Nishanth Menon | 733d20e | 2014-05-19 10:27:11 -0500 | [diff] [blame] | 719 | else if (soc_is_dra7xx()) |
| 720 | return kasprintf(GFP_KERNEL, "DRA7"); |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 721 | else |
| 722 | return kasprintf(GFP_KERNEL, "Unknown"); |
| 723 | } |
| 724 | |
| 725 | static ssize_t omap_get_type(struct device *dev, |
| 726 | struct device_attribute *attr, |
| 727 | char *buf) |
| 728 | { |
| 729 | return sprintf(buf, "%s\n", omap_types[omap_type()]); |
| 730 | } |
| 731 | |
| 732 | static struct device_attribute omap_soc_attr = |
| 733 | __ATTR(type, S_IRUGO, omap_get_type, NULL); |
| 734 | |
| 735 | void __init omap_soc_device_init(void) |
| 736 | { |
| 737 | struct device *parent; |
| 738 | struct soc_device *soc_dev; |
| 739 | struct soc_device_attribute *soc_dev_attr; |
| 740 | |
| 741 | soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); |
| 742 | if (!soc_dev_attr) |
| 743 | return; |
| 744 | |
| 745 | soc_dev_attr->machine = soc_name; |
| 746 | soc_dev_attr->family = omap_get_family(); |
| 747 | soc_dev_attr->revision = soc_rev; |
| 748 | |
| 749 | soc_dev = soc_device_register(soc_dev_attr); |
Tony Lindgren | b1dd11d | 2013-05-09 08:27:25 -0700 | [diff] [blame] | 750 | if (IS_ERR(soc_dev)) { |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 751 | kfree(soc_dev_attr); |
| 752 | return; |
| 753 | } |
| 754 | |
| 755 | parent = soc_device_to_device(soc_dev); |
Tony Lindgren | b1dd11d | 2013-05-09 08:27:25 -0700 | [diff] [blame] | 756 | device_create_file(parent, &omap_soc_attr); |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 757 | } |
| 758 | #endif /* CONFIG_SOC_BUS */ |