projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 5655108a CN |
1 | /* |
| 2 | * sys_info.c | |
| 3 | * | |
| 4 | * System information functions | |
| 5 | * | |
| 6 | * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ | |
| 7 | * | |
| 8 | * Derived from Beagle Board and 3430 SDP code by | |
| 9 | * Richard Woodruff <r-woodruff2@ti.com> | |
| 10 | * Syed Mohammed Khasim <khasim@ti.com> | |
| 11 | * | |
| 12 | * This program is free software; you can redistribute it and/or | |
| 13 | * modify it under the terms of the GNU General Public License as | |
| 14 | * published by the Free Software Foundation; either version 2 of | |
| 15 | * the License, or (at your option) any later version. | |
| 16 | * | |
| 17 | * This program is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the | |
| 20 | * GNU General Public License for more details. | |
| 21 | */ | |
| 22 | ||
| 23 | #include <common.h> | |
| 24 | #include <asm/io.h> | |
| 25 | #include <asm/arch/sys_proto.h> | |
| 26 | #include <asm/arch/cpu.h> | |
| 27 | #include <asm/arch/clock.h> | |
| 28 | ||
| 29 | struct ctrl_stat *cstat = (struct ctrl_stat *)CTRL_BASE; | |
| 30 | ||
| 31 | /** | |
| 32 | * get_cpu_rev(void) - extract rev info | |
| 33 | */ | |
| 34 | u32 get_cpu_rev(void) | |
| 35 | { | |
| 36 | u32 id; | |
| 37 | u32 rev; | |
| 38 | ||
| 39 | id = readl(DEVICE_ID); | |
| 40 | rev = (id >> 28) & 0xff; | |
| 41 | ||
| 42 | return rev; | |
| 43 | } | |
| 44 | ||
| 45 | /** | |
| 46 | * get_cpu_type(void) - extract cpu info | |
| 47 | */ | |
| 48 | u32 get_cpu_type(void) | |
| 49 | { | |
| 50 | u32 id = 0; | |
| 51 | u32 partnum; | |
| 52 | ||
| 53 | id = readl(DEVICE_ID); | |
| 54 | partnum = (id >> 12) & 0xffff; | |
| 55 | ||
| 56 | return partnum; | |
| 57 | } | |
| 58 | ||
| 59 | /** | |
| 60 | * get_board_rev() - setup to pass kernel board revision information | |
| 61 | * returns:(bit[0-3] sub version, higher bit[7-4] is higher version) | |
| 62 | */ | |
| 63 | u32 get_board_rev(void) | |
| 64 | { | |
| 65 | return BOARD_REV_ID; | |
| 66 | } | |
| 67 | ||
| 68 | /** | |
| 69 | * get_device_type(): tell if GP/HS/EMU/TST | |
| 70 | */ | |
| 71 | u32 get_device_type(void) | |
| 72 | { | |
| 73 | int mode; | |
| 74 | mode = readl(&cstat->statusreg) & (DEVICE_MASK); | |
| 75 | return mode >>= 8; | |
| 76 | } | |
| 77 | ||
| 78 | /** | |
| 79 | * get_sysboot_value(void) - return SYS_BOOT[4:0] | |
| 80 | */ | |
| 81 | u32 get_sysboot_value(void) | |
| 82 | { | |
| 83 | int mode; | |
| 84 | mode = readl(&cstat->statusreg) & (SYSBOOT_MASK); | |
| 85 | return mode; | |
| 86 | } | |
| 87 | ||
| 88 | #ifdef CONFIG_DISPLAY_CPUINFO | |
| 89 | /** | |
| 90 | * Print CPU information | |
| 91 | */ | |
| 92 | int print_cpuinfo(void) | |
| 93 | { | |
| 94 | char *cpu_s, *sec_s; | |
| 5655108a CN |
95 | |
| 96 | switch (get_cpu_type()) { | |
| 97 | case AM335X: | |
| 98 | cpu_s = "AM335X"; | |
| 99 | break; | |
| 8b029f22 MP |
100 | case TI81XX: |
| 101 | cpu_s = "TI81XX"; | |
| 102 | break; | |
| 5655108a CN |
103 | default: |
| 104 | cpu_s = "Unknown cpu type"; | |
| 105 | break; | |
| 106 | } | |
| 107 | ||
| 108 | switch (get_device_type()) { | |
| 109 | case TST_DEVICE: | |
| 110 | sec_s = "TST"; | |
| 111 | break; | |
| 112 | case EMU_DEVICE: | |
| 113 | sec_s = "EMU"; | |
| 114 | break; | |
| 115 | case HS_DEVICE: | |
| 116 | sec_s = "HS"; | |
| 117 | break; | |
| 118 | case GP_DEVICE: | |
| 119 | sec_s = "GP"; | |
| 120 | break; | |
| 121 | default: | |
| 122 | sec_s = "?"; | |
| 123 | } | |
| 124 | ||
| 30bba017 | 125 | printf("%s-%s rev %d\n", cpu_s, sec_s, get_cpu_rev()); |
| 5655108a CN |
126 | |
| 127 | return 0; | |
| 128 | } | |
| 129 | #endif /* CONFIG_DISPLAY_CPUINFO */ |