1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2017 Socionext Inc. 3*4882a593Smuzhiyun * Author: Masahiro Yamada <yamada.masahiro@socionext.com> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #include <linux/io.h> 9*4882a593Smuzhiyun #include <linux/types.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include "sg-regs.h" 12*4882a593Smuzhiyun #include "soc-info.h" 13*4882a593Smuzhiyun __uniphier_get_revision_field(unsigned int mask,unsigned int shift)14*4882a593Smuzhiyunstatic unsigned int __uniphier_get_revision_field(unsigned int mask, 15*4882a593Smuzhiyun unsigned int shift) 16*4882a593Smuzhiyun { 17*4882a593Smuzhiyun u32 revision = readl(SG_REVISION); 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun return (revision >> shift) & mask; 20*4882a593Smuzhiyun } 21*4882a593Smuzhiyun uniphier_get_soc_id(void)22*4882a593Smuzhiyununsigned int uniphier_get_soc_id(void) 23*4882a593Smuzhiyun { 24*4882a593Smuzhiyun return __uniphier_get_revision_field(0xff, 16); 25*4882a593Smuzhiyun } 26*4882a593Smuzhiyun uniphier_get_soc_model(void)27*4882a593Smuzhiyununsigned int uniphier_get_soc_model(void) 28*4882a593Smuzhiyun { 29*4882a593Smuzhiyun return __uniphier_get_revision_field(0x7, 8); 30*4882a593Smuzhiyun } 31*4882a593Smuzhiyun uniphier_get_soc_revision(void)32*4882a593Smuzhiyununsigned int uniphier_get_soc_revision(void) 33*4882a593Smuzhiyun { 34*4882a593Smuzhiyun return __uniphier_get_revision_field(0x1f, 0); 35*4882a593Smuzhiyun } 36