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https://github.com/AsahiLinux/u-boot
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
121 lines
1.9 KiB
C
121 lines
1.9 KiB
C
/*
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* sys_info.c
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*
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* System information functions
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*
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* Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
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*
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* Derived from Beagle Board and 3430 SDP code by
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <khasim@ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/clock.h>
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struct ctrl_stat *cstat = (struct ctrl_stat *)CTRL_BASE;
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/**
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* get_cpu_rev(void) - extract rev info
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*/
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u32 get_cpu_rev(void)
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{
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u32 id;
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u32 rev;
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id = readl(DEVICE_ID);
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rev = (id >> 28) & 0xff;
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return rev;
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}
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/**
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* get_cpu_type(void) - extract cpu info
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*/
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u32 get_cpu_type(void)
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{
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u32 id = 0;
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u32 partnum;
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id = readl(DEVICE_ID);
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partnum = (id >> 12) & 0xffff;
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return partnum;
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}
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/**
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* get_board_rev() - setup to pass kernel board revision information
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* returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
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*/
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u32 get_board_rev(void)
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{
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return BOARD_REV_ID;
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}
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/**
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* get_device_type(): tell if GP/HS/EMU/TST
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*/
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u32 get_device_type(void)
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{
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int mode;
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mode = readl(&cstat->statusreg) & (DEVICE_MASK);
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return mode >>= 8;
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}
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/**
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* get_sysboot_value(void) - return SYS_BOOT[4:0]
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*/
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u32 get_sysboot_value(void)
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{
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int mode;
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mode = readl(&cstat->statusreg) & (SYSBOOT_MASK);
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return mode;
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}
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#ifdef CONFIG_DISPLAY_CPUINFO
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/**
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* Print CPU information
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*/
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int print_cpuinfo(void)
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{
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char *cpu_s, *sec_s;
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switch (get_cpu_type()) {
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case AM335X:
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cpu_s = "AM335X";
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break;
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case TI81XX:
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cpu_s = "TI81XX";
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break;
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default:
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cpu_s = "Unknown cpu type";
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break;
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}
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switch (get_device_type()) {
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case TST_DEVICE:
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sec_s = "TST";
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break;
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case EMU_DEVICE:
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sec_s = "EMU";
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break;
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case HS_DEVICE:
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sec_s = "HS";
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break;
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case GP_DEVICE:
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sec_s = "GP";
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break;
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default:
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sec_s = "?";
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}
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printf("%s-%s rev %d\n", cpu_s, sec_s, get_cpu_rev());
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return 0;
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}
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#endif /* CONFIG_DISPLAY_CPUINFO */
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