1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2013-2014 Panasonic Corporation 4 * Copyright (C) 2015-2017 Socionext Inc. 5 * Author: Masahiro Yamada <yamada.masahiro (at) socionext.com> 6 */ 7 8 #include <stdio.h> 9 #include <linux/errno.h> 10 #include <linux/io.h> 11 #include <linux/printk.h> 12 13 #include "soc-info.h" 14 15 int print_cpuinfo(void) 16 { 17 unsigned int id, model, rev, required_model = 1, required_rev = 1; 18 19 id = uniphier_get_soc_id(); 20 model = uniphier_get_soc_model(); 21 rev = uniphier_get_soc_revision(); 22 23 puts("SoC: "); 24 25 switch (id) { 26 case UNIPHIER_LD4_ID: 27 puts("LD4"); 28 required_rev = 2; 29 break; 30 case UNIPHIER_PRO4_ID: 31 puts("Pro4"); 32 break; 33 case UNIPHIER_SLD8_ID: 34 puts("sLD8"); 35 break; 36 case UNIPHIER_PRO5_ID: 37 puts("Pro5"); 38 break; 39 case UNIPHIER_PXS2_ID: 40 puts("PXs2"); 41 break; 42 case UNIPHIER_LD6B_ID: 43 puts("LD6b"); 44 break; 45 case UNIPHIER_LD11_ID: 46 puts("LD11"); 47 break; 48 case UNIPHIER_LD20_ID: 49 puts("LD20"); 50 break; 51 case UNIPHIER_PXS3_ID: 52 puts("PXs3"); 53 break; 54 default: 55 printf("Unknown Processor ID (0x%x)\n", id); 56 return -ENOTSUPP; 57 } 58 59 printf(" (model %d, revision %d)\n", model, rev); 60 61 if (model < required_model) { 62 pr_err("Only model %d or newer is supported.\n", 63 required_model); 64 return -ENOTSUPP; 65 } else if (rev < required_rev) { 66 pr_err("Only revision %d or newer is supported.\n", 67 required_rev); 68 return -ENOTSUPP; 69 } 70 71 return 0; 72 } 73
