1 // SPDX-License-Identifier: GPL-2.0-only
3  * linux/arch/arm/mach-omap2/id.c
10  * Copyright (C) 2009-11 Texas Instruments
11  * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
29 #include "id.h"
86 /*----------------------------------------------------------------------------*/
102 	u16	hawkeye;	/* Silicon type (Hawkeye id) */
104 	u32	type;		/* Combined type id copied to omap_revision */
123 		odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_0);  in omap_get_die_id()
124 		odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_1);  in omap_get_die_id()
125 		odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_2);  in omap_get_die_id()
126 		odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_44XX_3);  in omap_get_die_id()
130 	odi->id_0 = read_tap_reg(OMAP_TAP_DIE_ID_0);  in omap_get_die_id()
131 	odi->id_1 = read_tap_reg(OMAP_TAP_DIE_ID_1);  in omap_get_die_id()
132 	odi->id_2 = read_tap_reg(OMAP_TAP_DIE_ID_2);  in omap_get_die_id()
133 	odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);  in omap_get_die_id()
140 	/* Throw the die ID into the entropy pool at boot */  in omap_feed_randpool()
179 		printk(KERN_ERR "Unknown OMAP CPU id\n");  in omap2xxx_check_revision()
205 		n += scnprintf(buf + n, sizeof(buf) - n, #feat " ");
219 	 * on available features. Upon detection, update the CPU id  in omap3_cpuinfo()
256 	n += scnprintf(buf, sizeof(buf) - n, "%s %s (", soc_name, soc_rev);  in omap3_cpuinfo()
264 	if (*(buf + n - 1) == ' ')  in omap3_cpuinfo()
265 		n--;  in omap3_cpuinfo()
266 	n += scnprintf(buf + n, sizeof(buf) - n, ")\n");  in omap3_cpuinfo()
301 	 * - The am35x Chip ID register has bits 12, 7:5, and 3:2 marked as  in omap3xxx_check_features()
357 	 * If the processor type is Cortex-A8 and the revision is 0x0  in omap3xxx_check_revision()
515 		/* Unknown default to latest silicon rev as default */  in omap3xxx_check_revision()
545 		rev = (idcode & 0xf) - 1;  in omap4xxx_check_revision()
592 		/* Unknown default to latest silicon rev as default */  in omap4xxx_check_revision()
635 		/* Unknown default to latest silicon rev as default*/  in omap5xxx_check_revision()
708 		/* Unknown default to latest silicon rev as default*/  in dra7xxx_check_revision()
723  * pretty much first thing from board init. For multi-omap, this gets
794 	soc_dev_attr->machine  = soc_name;  in omap_soc_device_init()
795 	soc_dev_attr->family   = omap_get_family();  in omap_soc_device_init()
796 	if (!soc_dev_attr->family) {  in omap_soc_device_init()
800 	soc_dev_attr->revision = soc_rev;  in omap_soc_device_init()
801 	soc_dev_attr->custom_attr_group = omap_soc_groups[0];  in omap_soc_device_init()
805 		kfree(soc_dev_attr->family);  in omap_soc_device_init()