1 /* 2 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <mmio.h> 8 9 #include "uniphier.h" 10 11 #define UNIPHIER_REVISION 0x5f800000 12 13 static unsigned int uniphier_get_revision_field(unsigned int mask, 14 unsigned int shift) 15 { 16 uint32_t revision = mmio_read_32(UNIPHIER_REVISION); 17 18 return (revision >> shift) & mask; 19 } 20 21 unsigned int uniphier_get_soc_type(void) 22 { 23 return uniphier_get_revision_field(0xff, 16); 24 } 25 26 unsigned int uniphier_get_soc_model(void) 27 { 28 return uniphier_get_revision_field(0x07, 8); 29 } 30 31 unsigned int uniphier_get_soc_revision(void) 32 { 33 return uniphier_get_revision_field(0x1f, 0); 34 } 35 36 unsigned int uniphier_get_soc_id(void) 37 { 38 uint32_t type = uniphier_get_soc_type(); 39 40 switch (type) { 41 case 0x31: 42 return UNIPHIER_SOC_LD11; 43 case 0x32: 44 return UNIPHIER_SOC_LD20; 45 case 0x35: 46 return UNIPHIER_SOC_PXS3; 47 default: 48 return UNIPHIER_SOC_UNKNOWN; 49 } 50 } 51
