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> |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 21 | #include <linux/slab.h> |
| 22 | |
| 23 | #ifdef CONFIG_SOC_BUS |
| 24 | #include <linux/sys_soc.h> |
| 25 | #endif |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 26 | |
Russell King | 0ba8b9b | 2008-08-10 18:08:10 +0100 | [diff] [blame] | 27 | #include <asm/cputype.h> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 28 | |
Tony Lindgren | 4e65331 | 2011-11-10 22:45:17 +0100 | [diff] [blame] | 29 | #include "common.h" |
Syed Mohammed Khasim | 72d0f1c | 2006-12-06 17:14:05 -0800 | [diff] [blame] | 30 | |
Tony Lindgren | 4952af4 | 2012-09-19 10:33:40 -0700 | [diff] [blame] | 31 | #include "id.h" |
Kan-Ru Chen | 2e130fc | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 32 | |
Tony Lindgren | dbc0416 | 2012-08-31 10:59:07 -0700 | [diff] [blame] | 33 | #include "soc.h" |
Paul Walmsley | 4814ced | 2010-10-08 11:40:20 -0600 | [diff] [blame] | 34 | #include "control.h" |
| 35 | |
Ivan Khoronzhuk | 42a1cc9 | 2012-11-14 12:10:37 -0800 | [diff] [blame] | 36 | #define OMAP4_SILICON_TYPE_STANDARD 0x01 |
| 37 | #define OMAP4_SILICON_TYPE_PERFORMANCE 0x02 |
| 38 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 39 | #define OMAP_SOC_MAX_NAME_LENGTH 16 |
| 40 | |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 41 | static unsigned int omap_revision; |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 42 | static char soc_name[OMAP_SOC_MAX_NAME_LENGTH]; |
| 43 | static char soc_rev[OMAP_SOC_MAX_NAME_LENGTH]; |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 44 | u32 omap_features; |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 45 | |
| 46 | unsigned int omap_rev(void) |
| 47 | { |
| 48 | return omap_revision; |
| 49 | } |
| 50 | EXPORT_SYMBOL(omap_rev); |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 51 | |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 52 | int omap_type(void) |
| 53 | { |
| 54 | u32 val = 0; |
| 55 | |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 56 | if (cpu_is_omap24xx()) { |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 57 | val = omap_ctrl_readl(OMAP24XX_CONTROL_STATUS); |
Vaibhav Hiremath | 971b8a9 | 2012-07-05 08:05:15 -0700 | [diff] [blame] | 58 | } else if (soc_is_am33xx()) { |
Afzal Mohammed | fb3cfb1 | 2012-03-05 16:11:01 -0800 | [diff] [blame] | 59 | val = omap_ctrl_readl(AM33XX_CONTROL_STATUS); |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 60 | } else if (cpu_is_omap34xx()) { |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 61 | val = omap_ctrl_readl(OMAP343X_CONTROL_STATUS); |
Santosh Shilimkar | 737daa0 | 2010-02-18 08:59:10 +0000 | [diff] [blame] | 62 | } else if (cpu_is_omap44xx()) { |
Santosh Shilimkar | dcf5ef3 | 2010-09-27 14:02:58 -0600 | [diff] [blame] | 63 | val = omap_ctrl_readl(OMAP4_CTRL_MODULE_CORE_STATUS); |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 64 | } else if (soc_is_omap54xx()) { |
| 65 | val = omap_ctrl_readl(OMAP5XXX_CONTROL_STATUS); |
| 66 | val &= OMAP5_DEVICETYPE_MASK; |
| 67 | val >>= 6; |
| 68 | goto out; |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 69 | } else { |
Kevin Hilman | 8e25ad9 | 2009-06-23 13:30:23 +0300 | [diff] [blame] | 70 | pr_err("Cannot detect omap type!\n"); |
| 71 | goto out; |
| 72 | } |
| 73 | |
| 74 | val &= OMAP2_DEVICETYPE_MASK; |
| 75 | val >>= 8; |
| 76 | |
| 77 | out: |
| 78 | return val; |
| 79 | } |
| 80 | EXPORT_SYMBOL(omap_type); |
| 81 | |
| 82 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 83 | /*----------------------------------------------------------------------------*/ |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 84 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 85 | #define OMAP_TAP_IDCODE 0x0204 |
| 86 | #define OMAP_TAP_DIE_ID_0 0x0218 |
| 87 | #define OMAP_TAP_DIE_ID_1 0x021C |
| 88 | #define OMAP_TAP_DIE_ID_2 0x0220 |
| 89 | #define OMAP_TAP_DIE_ID_3 0x0224 |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 90 | |
Andy Green | b235e00 | 2011-03-12 22:50:54 +0000 | [diff] [blame] | 91 | #define OMAP_TAP_DIE_ID_44XX_0 0x0200 |
| 92 | #define OMAP_TAP_DIE_ID_44XX_1 0x0208 |
| 93 | #define OMAP_TAP_DIE_ID_44XX_2 0x020c |
| 94 | #define OMAP_TAP_DIE_ID_44XX_3 0x0210 |
| 95 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 96 | #define read_tap_reg(reg) __raw_readl(tap_base + (reg)) |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 97 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 98 | struct omap_id { |
| 99 | u16 hawkeye; /* Silicon type (Hawkeye id) */ |
| 100 | u8 dev; /* Device type from production_id reg */ |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 101 | u32 type; /* Combined type id copied to omap_revision */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 102 | }; |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 103 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 104 | /* Register values to detect the OMAP version */ |
| 105 | static struct omap_id omap_ids[] __initdata = { |
| 106 | { .hawkeye = 0xb5d9, .dev = 0x0, .type = 0x24200024 }, |
| 107 | { .hawkeye = 0xb5d9, .dev = 0x1, .type = 0x24201024 }, |
| 108 | { .hawkeye = 0xb5d9, .dev = 0x2, .type = 0x24202024 }, |
| 109 | { .hawkeye = 0xb5d9, .dev = 0x4, .type = 0x24220024 }, |
| 110 | { .hawkeye = 0xb5d9, .dev = 0x8, .type = 0x24230024 }, |
| 111 | { .hawkeye = 0xb68a, .dev = 0x0, .type = 0x24300024 }, |
| 112 | }; |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 113 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 114 | static void __iomem *tap_base; |
| 115 | static u16 tap_prod_id; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 116 | |
Kan-Ru Chen | 2e130fc | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 117 | void omap_get_die_id(struct omap_die_id *odi) |
| 118 | { |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 119 | if (cpu_is_omap44xx() || soc_is_omap54xx()) { |
Andy Green | b235e00 | 2011-03-12 22:50:54 +0000 | [diff] [blame] | 120 | odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_0); |
| 121 | odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_1); |
| 122 | odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_2); |
| 123 | odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_3); |
| 124 | |
| 125 | return; |
| 126 | } |
Kan-Ru Chen | 2e130fc | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 127 | odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0); |
| 128 | odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1); |
| 129 | odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2); |
| 130 | odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3); |
| 131 | } |
| 132 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 133 | void __init omap2xxx_check_revision(void) |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 134 | { |
| 135 | int i, j; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 136 | u32 idcode, prod_id; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 137 | u16 hawkeye; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 138 | u8 dev_type, rev; |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 139 | struct omap_die_id odi; |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 140 | |
| 141 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 142 | prod_id = read_tap_reg(tap_prod_id); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 143 | hawkeye = (idcode >> 12) & 0xffff; |
| 144 | rev = (idcode >> 28) & 0x0f; |
| 145 | dev_type = (prod_id >> 16) & 0x0f; |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 146 | omap_get_die_id(&odi); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 147 | |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 148 | pr_debug("OMAP_TAP_IDCODE 0x%08x REV %i HAWKEYE 0x%04x MANF %03x\n", |
| 149 | idcode, rev, hawkeye, (idcode >> 1) & 0x7ff); |
Kan-Ru Chen | c46732b | 2010-08-02 14:21:41 +0300 | [diff] [blame] | 150 | 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] | 151 | 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] | 152 | odi.id_1, (odi.id_1 >> 28) & 0xf); |
| 153 | pr_debug("OMAP_TAP_DIE_ID_2: 0x%08x\n", odi.id_2); |
| 154 | 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] | 155 | pr_debug("OMAP_TAP_PROD_ID_0: 0x%08x DEV_TYPE: %i\n", |
| 156 | prod_id, dev_type); |
| 157 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 158 | /* Check hawkeye ids */ |
| 159 | for (i = 0; i < ARRAY_SIZE(omap_ids); i++) { |
| 160 | if (hawkeye == omap_ids[i].hawkeye) |
| 161 | break; |
| 162 | } |
| 163 | |
| 164 | if (i == ARRAY_SIZE(omap_ids)) { |
| 165 | printk(KERN_ERR "Unknown OMAP CPU id\n"); |
| 166 | return; |
| 167 | } |
| 168 | |
| 169 | for (j = i; j < ARRAY_SIZE(omap_ids); j++) { |
| 170 | if (dev_type == omap_ids[j].dev) |
| 171 | break; |
| 172 | } |
| 173 | |
| 174 | if (j == ARRAY_SIZE(omap_ids)) { |
Paul Walmsley | 7852ec0 | 2012-07-26 00:54:26 -0600 | [diff] [blame] | 175 | pr_err("Unknown OMAP device type. Handling it as OMAP%04x\n", |
| 176 | omap_ids[i].type >> 16); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 177 | j = i; |
| 178 | } |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 179 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 180 | sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); |
| 181 | sprintf(soc_rev, "ES%x", (omap_rev() >> 12) & 0xf); |
| 182 | |
| 183 | pr_info("%s", soc_name); |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 184 | if ((omap_rev() >> 8) & 0x0f) |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 185 | pr_info("%s", soc_rev); |
Paul Walmsley | 097c584 | 2008-07-03 12:24:45 +0300 | [diff] [blame] | 186 | pr_info("\n"); |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 187 | } |
| 188 | |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 189 | #define OMAP3_SHOW_FEATURE(feat) \ |
| 190 | if (omap3_has_ ##feat()) \ |
| 191 | printk(#feat" "); |
| 192 | |
| 193 | static void __init omap3_cpuinfo(void) |
| 194 | { |
| 195 | const char *cpu_name; |
| 196 | |
| 197 | /* |
| 198 | * OMAP3430 and OMAP3530 are assumed to be same. |
| 199 | * |
| 200 | * OMAP3525, OMAP3515 and OMAP3503 can be detected only based |
| 201 | * on available features. Upon detection, update the CPU id |
| 202 | * and CPU class bits. |
| 203 | */ |
| 204 | if (cpu_is_omap3630()) { |
| 205 | cpu_name = "OMAP3630"; |
Kevin Hilman | 68a88b9 | 2012-04-30 16:37:10 -0700 | [diff] [blame] | 206 | } else if (soc_is_am35xx()) { |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 207 | cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505"; |
| 208 | } else if (cpu_is_ti816x()) { |
| 209 | cpu_name = "TI816X"; |
Vaibhav Hiremath | 971b8a9 | 2012-07-05 08:05:15 -0700 | [diff] [blame] | 210 | } else if (soc_is_am335x()) { |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 211 | cpu_name = "AM335X"; |
| 212 | } else if (cpu_is_ti814x()) { |
| 213 | cpu_name = "TI814X"; |
| 214 | } else if (omap3_has_iva() && omap3_has_sgx()) { |
| 215 | /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */ |
| 216 | cpu_name = "OMAP3430/3530"; |
| 217 | } else if (omap3_has_iva()) { |
| 218 | cpu_name = "OMAP3525"; |
| 219 | } else if (omap3_has_sgx()) { |
| 220 | cpu_name = "OMAP3515"; |
| 221 | } else { |
| 222 | cpu_name = "OMAP3503"; |
| 223 | } |
| 224 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 225 | sprintf(soc_name, "%s", cpu_name); |
| 226 | |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 227 | /* Print verbose information */ |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 228 | pr_info("%s %s (", soc_name, soc_rev); |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 229 | |
| 230 | OMAP3_SHOW_FEATURE(l2cache); |
| 231 | OMAP3_SHOW_FEATURE(iva); |
| 232 | OMAP3_SHOW_FEATURE(sgx); |
| 233 | OMAP3_SHOW_FEATURE(neon); |
| 234 | OMAP3_SHOW_FEATURE(isp); |
| 235 | OMAP3_SHOW_FEATURE(192mhz_clk); |
| 236 | |
| 237 | printk(")\n"); |
| 238 | } |
| 239 | |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 240 | #define OMAP3_CHECK_FEATURE(status,feat) \ |
| 241 | if (((status & OMAP3_ ##feat## _MASK) \ |
| 242 | >> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \ |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 243 | omap_features |= OMAP3_HAS_ ##feat; \ |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 244 | } |
| 245 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 246 | void __init omap3xxx_check_features(void) |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 247 | { |
| 248 | u32 status; |
| 249 | |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 250 | omap_features = 0; |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 251 | |
| 252 | status = omap_ctrl_readl(OMAP3_CONTROL_OMAP_STATUS); |
| 253 | |
| 254 | OMAP3_CHECK_FEATURE(status, L2CACHE); |
| 255 | OMAP3_CHECK_FEATURE(status, IVA); |
| 256 | OMAP3_CHECK_FEATURE(status, SGX); |
| 257 | OMAP3_CHECK_FEATURE(status, NEON); |
| 258 | OMAP3_CHECK_FEATURE(status, ISP); |
Vishwanath BS | 7356f0b | 2010-02-22 22:09:10 -0700 | [diff] [blame] | 259 | if (cpu_is_omap3630()) |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 260 | omap_features |= OMAP3_HAS_192MHZ_CLK; |
Paul Walmsley | b02b917 | 2011-10-06 17:18:45 -0600 | [diff] [blame] | 261 | if (cpu_is_omap3430() || cpu_is_omap3630()) |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 262 | omap_features |= OMAP3_HAS_IO_WAKEUP; |
Paul Walmsley | b02b917 | 2011-10-06 17:18:45 -0600 | [diff] [blame] | 263 | if (cpu_is_omap3630() || omap_rev() == OMAP3430_REV_ES3_1 || |
| 264 | omap_rev() == OMAP3430_REV_ES3_1_2) |
| 265 | omap_features |= OMAP3_HAS_IO_CHAIN_CTRL; |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 266 | |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 267 | omap_features |= OMAP3_HAS_SDRC; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 268 | |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 269 | /* |
Mark A. Greer | 1ce0299 | 2012-04-30 16:57:09 -0700 | [diff] [blame] | 270 | * am35x fixups: |
| 271 | * - The am35x Chip ID register has bits 12, 7:5, and 3:2 marked as |
| 272 | * reserved and therefore return 0 when read. Unfortunately, |
| 273 | * OMAP3_CHECK_FEATURE() will interpret some of those zeroes to |
| 274 | * mean that a feature is present even though it isn't so clear |
| 275 | * the incorrectly set feature bits. |
| 276 | */ |
| 277 | if (soc_is_am35xx()) |
| 278 | omap_features &= ~(OMAP3_HAS_IVA | OMAP3_HAS_ISP); |
| 279 | |
| 280 | /* |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 281 | * TODO: Get additional info (where applicable) |
| 282 | * e.g. Size of L2 cache. |
| 283 | */ |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 284 | |
| 285 | omap3_cpuinfo(); |
Sanjeev Premi | 8384ce0 | 2009-11-22 10:10:53 -0800 | [diff] [blame] | 286 | } |
| 287 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 288 | void __init omap4xxx_check_features(void) |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 289 | { |
| 290 | u32 si_type; |
| 291 | |
Ivan Khoronzhuk | 42a1cc9 | 2012-11-14 12:10:37 -0800 | [diff] [blame] | 292 | si_type = |
| 293 | (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] | 294 | |
Ivan Khoronzhuk | 42a1cc9 | 2012-11-14 12:10:37 -0800 | [diff] [blame] | 295 | if (si_type == OMAP4_SILICON_TYPE_PERFORMANCE) |
| 296 | omap_features = OMAP4_HAS_PERF_SILICON; |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 297 | } |
| 298 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 299 | void __init ti81xx_check_features(void) |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 300 | { |
Aneesh V | cc0170b | 2011-07-02 08:00:22 +0530 | [diff] [blame] | 301 | omap_features = OMAP3_HAS_NEON; |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 302 | omap3_cpuinfo(); |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 303 | } |
| 304 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 305 | void __init omap3xxx_check_revision(void) |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 306 | { |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 307 | const char *cpu_rev; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 308 | u32 cpuid, idcode; |
| 309 | u16 hawkeye; |
| 310 | u8 rev; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 311 | |
| 312 | /* |
| 313 | * We cannot access revision registers on ES1.0. |
| 314 | * If the processor type is Cortex-A8 and the revision is 0x0 |
| 315 | * it means its Cortex r0p0 which is 3430 ES1.0. |
| 316 | */ |
Uwe Kleine-König | ac52e83 | 2013-01-30 17:38:21 +0100 | [diff] [blame] | 317 | cpuid = read_cpuid_id(); |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 318 | if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) { |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 319 | omap_revision = OMAP3430_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 320 | cpu_rev = "1.0"; |
Sanjeev Premi | 048f4bd | 2009-11-22 10:10:54 -0800 | [diff] [blame] | 321 | return; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | /* |
| 325 | * Detection for 34xx ES2.0 and above can be done with just |
| 326 | * hawkeye and rev. See TRM 1.5.2 Device Identification. |
| 327 | * Note that rev does not map directly to our defined processor |
| 328 | * revision numbers as ES1.0 uses value 0. |
| 329 | */ |
| 330 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 331 | hawkeye = (idcode >> 12) & 0xffff; |
| 332 | rev = (idcode >> 28) & 0xff; |
| 333 | |
Nishanth Menon | 2456a10 | 2009-11-22 10:10:56 -0800 | [diff] [blame] | 334 | switch (hawkeye) { |
| 335 | case 0xb7ae: |
| 336 | /* Handle 34xx/35xx devices */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 337 | switch (rev) { |
Sanjeev Premi | 048f4bd | 2009-11-22 10:10:54 -0800 | [diff] [blame] | 338 | case 0: /* Take care of early samples */ |
| 339 | case 1: |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 340 | omap_revision = OMAP3430_REV_ES2_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 341 | cpu_rev = "2.0"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 342 | break; |
| 343 | case 2: |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 344 | omap_revision = OMAP3430_REV_ES2_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 345 | cpu_rev = "2.1"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 346 | break; |
| 347 | case 3: |
Lauri Leukkunen | 84a3434 | 2008-12-10 17:36:31 -0800 | [diff] [blame] | 348 | omap_revision = OMAP3430_REV_ES3_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 349 | cpu_rev = "3.0"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 350 | break; |
Tony Lindgren | 187e688 | 2009-01-29 08:57:16 -0800 | [diff] [blame] | 351 | case 4: |
Tony Lindgren | e9acb9b | 2010-01-19 15:40:26 -0800 | [diff] [blame] | 352 | omap_revision = OMAP3430_REV_ES3_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 353 | cpu_rev = "3.1"; |
Tony Lindgren | e9acb9b | 2010-01-19 15:40:26 -0800 | [diff] [blame] | 354 | break; |
| 355 | case 7: |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 356 | /* FALLTHROUGH */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 357 | default: |
| 358 | /* Use the latest known revision as default */ |
Tony Lindgren | e9acb9b | 2010-01-19 15:40:26 -0800 | [diff] [blame] | 359 | omap_revision = OMAP3430_REV_ES3_1_2; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 360 | cpu_rev = "3.1.2"; |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 361 | } |
Nishanth Menon | 2456a10 | 2009-11-22 10:10:56 -0800 | [diff] [blame] | 362 | break; |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 363 | case 0xb868: |
Paul Walmsley | 1f1b035 | 2011-09-13 19:52:13 -0600 | [diff] [blame] | 364 | /* |
| 365 | * Handle OMAP/AM 3505/3517 devices |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 366 | * |
Paul Walmsley | 1f1b035 | 2011-09-13 19:52:13 -0600 | [diff] [blame] | 367 | * Set the device to be OMAP3517 here. Actual device |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 368 | * is identified later based on the features. |
| 369 | */ |
Paul Walmsley | 9ed2ba7 | 2011-09-13 19:52:14 -0600 | [diff] [blame] | 370 | switch (rev) { |
| 371 | case 0: |
Kevin Hilman | 68a88b9 | 2012-04-30 16:37:10 -0700 | [diff] [blame] | 372 | omap_revision = AM35XX_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 373 | cpu_rev = "1.0"; |
Paul Walmsley | 9ed2ba7 | 2011-09-13 19:52:14 -0600 | [diff] [blame] | 374 | break; |
| 375 | case 1: |
| 376 | /* FALLTHROUGH */ |
| 377 | default: |
Kevin Hilman | 68a88b9 | 2012-04-30 16:37:10 -0700 | [diff] [blame] | 378 | omap_revision = AM35XX_REV_ES1_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 379 | cpu_rev = "1.1"; |
Paul Walmsley | 9ed2ba7 | 2011-09-13 19:52:14 -0600 | [diff] [blame] | 380 | } |
Sanjeev Premi | 4cac601 | 2009-11-22 10:10:58 -0800 | [diff] [blame] | 381 | break; |
Felipe Balbi | edeae65 | 2009-11-22 10:11:24 -0800 | [diff] [blame] | 382 | case 0xb891: |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 383 | /* Handle 36xx devices */ |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 384 | |
| 385 | switch(rev) { |
| 386 | case 0: /* Take care of early samples */ |
| 387 | omap_revision = OMAP3630_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 388 | cpu_rev = "1.0"; |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 389 | break; |
| 390 | case 1: |
| 391 | omap_revision = OMAP3630_REV_ES1_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 392 | cpu_rev = "1.1"; |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 393 | break; |
| 394 | case 2: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 395 | /* FALLTHROUGH */ |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 396 | default: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 397 | omap_revision = OMAP3630_REV_ES1_2; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 398 | cpu_rev = "1.2"; |
Anand Gadiyar | b0a1a6c | 2010-08-03 19:59:24 +0000 | [diff] [blame] | 399 | } |
Nishanth Menon | 77c0870 | 2010-08-16 09:21:19 +0300 | [diff] [blame] | 400 | break; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 401 | case 0xb81e: |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 402 | switch (rev) { |
| 403 | case 0: |
| 404 | omap_revision = TI8168_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 405 | cpu_rev = "1.0"; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 406 | break; |
| 407 | case 1: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 408 | /* FALLTHROUGH */ |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 409 | default: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 410 | omap_revision = TI8168_REV_ES1_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 411 | cpu_rev = "1.1"; |
Paul Walmsley | 3b32b7d | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 412 | break; |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 413 | } |
| 414 | break; |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 415 | case 0xb944: |
AnilKumar Ch | 5af044f | 2013-02-01 15:58:22 +0530 | [diff] [blame] | 416 | switch (rev) { |
| 417 | case 0: |
| 418 | omap_revision = AM335X_REV_ES1_0; |
| 419 | cpu_rev = "1.0"; |
| 420 | break; |
| 421 | case 1: |
AnilKumar Ch | 5af044f | 2013-02-01 15:58:22 +0530 | [diff] [blame] | 422 | omap_revision = AM335X_REV_ES2_0; |
| 423 | cpu_rev = "2.0"; |
| 424 | break; |
Vaibhav Hiremath | d240ef3 | 2013-05-08 16:48:02 -0700 | [diff] [blame^] | 425 | case 2: |
| 426 | /* FALLTHROUGH */ |
| 427 | default: |
| 428 | omap_revision = AM335X_REV_ES2_1; |
| 429 | cpu_rev = "2.1"; |
| 430 | break; |
AnilKumar Ch | 5af044f | 2013-02-01 15:58:22 +0530 | [diff] [blame] | 431 | } |
Vaibhav Hiremath | c2d1355 | 2012-01-23 13:26:47 +0530 | [diff] [blame] | 432 | break; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 433 | case 0xb8f2: |
| 434 | switch (rev) { |
| 435 | case 0: |
| 436 | /* FALLTHROUGH */ |
| 437 | case 1: |
| 438 | omap_revision = TI8148_REV_ES1_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 439 | cpu_rev = "1.0"; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 440 | break; |
| 441 | case 2: |
| 442 | omap_revision = TI8148_REV_ES2_0; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 443 | cpu_rev = "2.0"; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 444 | break; |
| 445 | case 3: |
| 446 | /* FALLTHROUGH */ |
| 447 | default: |
| 448 | omap_revision = TI8148_REV_ES2_1; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 449 | cpu_rev = "2.1"; |
Hemant Pedanekar | 4390f5b | 2011-12-13 10:46:45 -0800 | [diff] [blame] | 450 | break; |
| 451 | } |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 452 | break; |
Nishanth Menon | 2456a10 | 2009-11-22 10:10:56 -0800 | [diff] [blame] | 453 | default: |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 454 | /* Unknown default to latest silicon rev as default */ |
Paul Walmsley | 3b32b7d | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 455 | omap_revision = OMAP3630_REV_ES1_2; |
Vaibhav Hiremath | 50a01e6 | 2011-12-19 15:50:14 +0530 | [diff] [blame] | 456 | cpu_rev = "1.2"; |
Paul Walmsley | 51ec811 | 2011-09-13 19:52:15 -0600 | [diff] [blame] | 457 | pr_warn("Warning: unknown chip type; assuming OMAP3630ES1.2\n"); |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 458 | } |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 459 | sprintf(soc_rev, "ES%s", cpu_rev); |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 460 | } |
| 461 | |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 462 | void __init omap4xxx_check_revision(void) |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 463 | { |
| 464 | u32 idcode; |
| 465 | u16 hawkeye; |
| 466 | u8 rev; |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 467 | |
| 468 | /* |
| 469 | * The IC rev detection is done with hawkeye and rev. |
| 470 | * Note that rev does not map directly to defined processor |
| 471 | * revision numbers as ES1.0 uses value 0. |
| 472 | */ |
| 473 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 474 | hawkeye = (idcode >> 12) & 0xffff; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 475 | rev = (idcode >> 28) & 0xf; |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 476 | |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 477 | /* |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 478 | * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0 |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 479 | * Use ARM register to detect the correct ES version |
| 480 | */ |
Leonid Iziumtsev | ec023e4 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 481 | if (!rev && (hawkeye != 0xb94e) && (hawkeye != 0xb975)) { |
Uwe Kleine-König | ac52e83 | 2013-01-30 17:38:21 +0100 | [diff] [blame] | 482 | idcode = read_cpuid_id(); |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 483 | rev = (idcode & 0xf) - 1; |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 484 | } |
| 485 | |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 486 | switch (hawkeye) { |
| 487 | case 0xb852: |
| 488 | switch (rev) { |
| 489 | case 0: |
| 490 | omap_revision = OMAP4430_REV_ES1_0; |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 491 | break; |
| 492 | case 1: |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 493 | default: |
| 494 | omap_revision = OMAP4430_REV_ES2_0; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 495 | } |
| 496 | break; |
| 497 | case 0xb95c: |
| 498 | switch (rev) { |
| 499 | case 3: |
| 500 | omap_revision = OMAP4430_REV_ES2_1; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 501 | break; |
| 502 | case 4: |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 503 | omap_revision = OMAP4430_REV_ES2_2; |
David Anders | 55035c1 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 504 | break; |
| 505 | case 6: |
| 506 | default: |
| 507 | omap_revision = OMAP4430_REV_ES2_3; |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 508 | } |
| 509 | break; |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 510 | case 0xb94e: |
| 511 | switch (rev) { |
| 512 | case 0: |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 513 | omap_revision = OMAP4460_REV_ES1_0; |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 514 | break; |
Chris Lalancette | 33ee0db | 2012-05-09 09:45:02 -0700 | [diff] [blame] | 515 | case 2: |
| 516 | default: |
| 517 | omap_revision = OMAP4460_REV_ES1_1; |
| 518 | break; |
Aneesh V | fa54dcc | 2011-07-02 08:00:21 +0530 | [diff] [blame] | 519 | } |
| 520 | break; |
Leonid Iziumtsev | ec023e4 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 521 | case 0xb975: |
| 522 | switch (rev) { |
| 523 | case 0: |
| 524 | default: |
| 525 | omap_revision = OMAP4470_REV_ES1_0; |
| 526 | break; |
| 527 | } |
| 528 | break; |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 529 | default: |
Nishant Kamat | e49c4d2 | 2011-02-17 09:55:03 -0800 | [diff] [blame] | 530 | /* Unknown default to latest silicon rev as default */ |
David Anders | 55035c1 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 531 | omap_revision = OMAP4430_REV_ES2_3; |
Santosh Shilimkar | ed6be0b | 2010-09-16 18:44:46 +0530 | [diff] [blame] | 532 | } |
| 533 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 534 | sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); |
| 535 | sprintf(soc_rev, "ES%d.%d", (omap_rev() >> 12) & 0xf, |
| 536 | (omap_rev() >> 8) & 0xf); |
| 537 | pr_info("%s %s\n", soc_name, soc_rev); |
Santosh Shilimkar | b570e0e | 2009-12-11 16:16:34 -0800 | [diff] [blame] | 538 | } |
| 539 | |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 540 | void __init omap5xxx_check_revision(void) |
| 541 | { |
| 542 | u32 idcode; |
| 543 | u16 hawkeye; |
| 544 | u8 rev; |
| 545 | |
| 546 | idcode = read_tap_reg(OMAP_TAP_IDCODE); |
| 547 | hawkeye = (idcode >> 12) & 0xffff; |
| 548 | rev = (idcode >> 28) & 0xff; |
| 549 | switch (hawkeye) { |
| 550 | case 0xb942: |
| 551 | switch (rev) { |
| 552 | case 0: |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 553 | omap_revision = OMAP5430_REV_ES1_0; |
Santosh Shilimkar | 5a898a7 | 2013-01-07 19:29:46 +0530 | [diff] [blame] | 554 | break; |
| 555 | case 1: |
| 556 | default: |
| 557 | omap_revision = OMAP5430_REV_ES2_0; |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 558 | } |
| 559 | break; |
| 560 | |
| 561 | case 0xb998: |
| 562 | switch (rev) { |
| 563 | case 0: |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 564 | omap_revision = OMAP5432_REV_ES1_0; |
Santosh Shilimkar | 5a898a7 | 2013-01-07 19:29:46 +0530 | [diff] [blame] | 565 | break; |
| 566 | case 1: |
| 567 | default: |
| 568 | omap_revision = OMAP5432_REV_ES2_0; |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 569 | } |
| 570 | break; |
| 571 | |
| 572 | default: |
| 573 | /* Unknown default to latest silicon rev as default*/ |
Santosh Shilimkar | 5a898a7 | 2013-01-07 19:29:46 +0530 | [diff] [blame] | 574 | omap_revision = OMAP5430_REV_ES2_0; |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 575 | } |
| 576 | |
Ruslan Bilovol | f9d41ee | 2013-02-14 13:55:23 +0200 | [diff] [blame] | 577 | sprintf(soc_name, "OMAP%04x", omap_rev() >> 16); |
| 578 | sprintf(soc_rev, "ES%d.0", (omap_rev() >> 12) & 0xf); |
| 579 | |
| 580 | pr_info("%s %s\n", soc_name, soc_rev); |
R Sricharan | b13e80a | 2012-04-19 17:42:19 +0530 | [diff] [blame] | 581 | } |
| 582 | |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 583 | /* |
| 584 | * Set up things for map_io and processor detection later on. Gets called |
| 585 | * pretty much first thing from board init. For multi-omap, this gets |
| 586 | * cpu_is_omapxxxx() working accurately enough for map_io. Then we'll try to |
| 587 | * detect the exact revision later on in omap2_detect_revision() once map_io |
| 588 | * is done. |
| 589 | */ |
Paul Walmsley | b6a4226 | 2012-10-29 20:50:21 -0600 | [diff] [blame] | 590 | void __init omap2_set_globals_tap(u32 class, void __iomem *tap) |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 591 | { |
Paul Walmsley | b6a4226 | 2012-10-29 20:50:21 -0600 | [diff] [blame] | 592 | omap_revision = class; |
| 593 | tap_base = tap; |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 594 | |
Paul Walmsley | b6a4226 | 2012-10-29 20:50:21 -0600 | [diff] [blame] | 595 | /* XXX What is this intended to do? */ |
Tony Lindgren | a882314 | 2008-12-10 17:36:30 -0800 | [diff] [blame] | 596 | if (cpu_is_omap34xx()) |
Tony Lindgren | 0e56484 | 2008-10-06 15:49:16 +0300 | [diff] [blame] | 597 | tap_prod_id = 0x0210; |
| 598 | else |
| 599 | tap_prod_id = 0x0208; |
| 600 | } |
Ruslan Bilovol | 6770b21 | 2013-02-14 13:55:24 +0200 | [diff] [blame] | 601 | |
| 602 | #ifdef CONFIG_SOC_BUS |
| 603 | |
| 604 | static const char const *omap_types[] = { |
| 605 | [OMAP2_DEVICE_TYPE_TEST] = "TST", |
| 606 | [OMAP2_DEVICE_TYPE_EMU] = "EMU", |
| 607 | [OMAP2_DEVICE_TYPE_SEC] = "HS", |
| 608 | [OMAP2_DEVICE_TYPE_GP] = "GP", |
| 609 | [OMAP2_DEVICE_TYPE_BAD] = "BAD", |
| 610 | }; |
| 611 | |
| 612 | static const char * __init omap_get_family(void) |
| 613 | { |
| 614 | if (cpu_is_omap24xx()) |
| 615 | return kasprintf(GFP_KERNEL, "OMAP2"); |
| 616 | else if (cpu_is_omap34xx()) |
| 617 | return kasprintf(GFP_KERNEL, "OMAP3"); |
| 618 | else if (cpu_is_omap44xx()) |
| 619 | return kasprintf(GFP_KERNEL, "OMAP4"); |
| 620 | else if (soc_is_omap54xx()) |
| 621 | return kasprintf(GFP_KERNEL, "OMAP5"); |
| 622 | else |
| 623 | return kasprintf(GFP_KERNEL, "Unknown"); |
| 624 | } |
| 625 | |
| 626 | static ssize_t omap_get_type(struct device *dev, |
| 627 | struct device_attribute *attr, |
| 628 | char *buf) |
| 629 | { |
| 630 | return sprintf(buf, "%s\n", omap_types[omap_type()]); |
| 631 | } |
| 632 | |
| 633 | static struct device_attribute omap_soc_attr = |
| 634 | __ATTR(type, S_IRUGO, omap_get_type, NULL); |
| 635 | |
| 636 | void __init omap_soc_device_init(void) |
| 637 | { |
| 638 | struct device *parent; |
| 639 | struct soc_device *soc_dev; |
| 640 | struct soc_device_attribute *soc_dev_attr; |
| 641 | |
| 642 | soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); |
| 643 | if (!soc_dev_attr) |
| 644 | return; |
| 645 | |
| 646 | soc_dev_attr->machine = soc_name; |
| 647 | soc_dev_attr->family = omap_get_family(); |
| 648 | soc_dev_attr->revision = soc_rev; |
| 649 | |
| 650 | soc_dev = soc_device_register(soc_dev_attr); |
| 651 | if (IS_ERR_OR_NULL(soc_dev)) { |
| 652 | kfree(soc_dev_attr); |
| 653 | return; |
| 654 | } |
| 655 | |
| 656 | parent = soc_device_to_device(soc_dev); |
| 657 | if (!IS_ERR_OR_NULL(parent)) |
| 658 | device_create_file(parent, &omap_soc_attr); |
| 659 | } |
| 660 | #endif /* CONFIG_SOC_BUS */ |