1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * System information routines for all OMAP based boards. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * (C) Copyright 2017 Linaro Ltd. 5*4882a593Smuzhiyun * Sam Protsenko <semen.protsenko@linaro.org> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <asm/arch/omap.h> 11*4882a593Smuzhiyun #include <asm/io.h> 12*4882a593Smuzhiyun #include <asm/omap_common.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /** 15*4882a593Smuzhiyun * Tell if device is GP/HS/EMU/TST. 16*4882a593Smuzhiyun */ get_device_type(void)17*4882a593Smuzhiyunu32 get_device_type(void) 18*4882a593Smuzhiyun { 19*4882a593Smuzhiyun #if defined(CONFIG_OMAP34XX) 20*4882a593Smuzhiyun /* 21*4882a593Smuzhiyun * On OMAP3 systems we call this early enough that we must just 22*4882a593Smuzhiyun * use the direct offset for safety. 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun return (readl(OMAP34XX_CTRL_BASE + 0x2f0) & DEVICE_TYPE_MASK) >> 25*4882a593Smuzhiyun DEVICE_TYPE_SHIFT; 26*4882a593Smuzhiyun #else 27*4882a593Smuzhiyun return (readl((*ctrl)->control_status) & DEVICE_TYPE_MASK) >> 28*4882a593Smuzhiyun DEVICE_TYPE_SHIFT; 29*4882a593Smuzhiyun #endif 30*4882a593Smuzhiyun } 31