118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/* Copyright (C)
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* 2014 - AllwinnerTech
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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/**
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* @file sunxi_oops.h
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* @brief: hooks for oops,
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* print more information and enable sdcard jtag.
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* @author AllwinnerTech
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* @version v0.2
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* @date 2017-5-8
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*/
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#ifndef __SUNXI_OOPS_H__
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#define __SUNXI_OOPS_H__
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#include <linux/io.h>
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#include <linux/sys_config.h>
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#include <linux/pinctrl/pinconf-sunxi.h>
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#include <linux/pinctrl/consumer.h>
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#include <linux/clk.h>
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#include <linux/of.h>
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#ifdef CONFIG_SUNXI_OOPS_HOOK
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#ifdef CONFIG_ARCH_SUN50IW6P1
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#define JTAG_MS "PF0"
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#define JTAG_CK "PF5"
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#define JTAG_DO "PF3"
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#define JTAG_DI "PF1"
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#define CONFIG_SUNXI_CARD_JTAG
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#endif
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extern unsigned int cpufreq_get(unsigned int cpu);
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extern unsigned long dramfreq_get(void);
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void sunxi_oops_hook(void)
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{
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struct clk *clk_cpu, *clk_gpu;
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unsigned int pll;
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/* jtag_ms
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* jtag_ck
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* jtag_do
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* jtag_di
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*/
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#ifdef CONFIG_SUNXI_CARD_JTAG
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unsigned long config;
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config = SUNXI_PINCFG_PACK(SUNXI_PINCFG_TYPE_FUNC, 3);
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pin_config_set(SUNXI_PINCTRL, JTAG_MS, config);
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pin_config_set(SUNXI_PINCTRL, JTAG_CK, config);
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pin_config_set(SUNXI_PINCTRL, JTAG_DO, config);
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pin_config_set(SUNXI_PINCTRL, JTAG_DI, config);
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#endif
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/*
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* CPU FREQ
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*/
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pll = 0;
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#ifdef CONFIG_CPU_FREQ
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pll = cpufreq_get(0);
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#endif
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if (pll >= 1000)
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printk(KERN_EMERG "sunxi oops: cpu frequency: %d MHz\n", pll/1000);
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else {
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clk_cpu = clk_get(NULL, "pll_cpu");
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if (!IS_ERR_OR_NULL(clk_cpu)) {
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pll = clk_get_rate(clk_cpu);
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}
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printk(KERN_EMERG "sunxi oops: cpu frequency: %d MHz\n",
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pll >= 1000000 ? pll/1000000 : 0);
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}
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/*
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* DRAM FREQ
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*/
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pll = 0;
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#ifdef CONFIG_ARM_SUNXI_DRAM_DEVFREQ
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pll = dramfreq_get();
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#endif
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printk(KERN_EMERG "sunxi oops: ddr frequency: %d MHz\n",
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pll >= 1000 ? pll/1000 : 0);
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/*
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* GPU FREQ
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*/
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clk_gpu = clk_get(NULL, "gpu");
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pll = 0;
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if (!IS_ERR_OR_NULL(clk_gpu)) {
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pll = clk_get_rate(clk_gpu);
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}
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printk(KERN_EMERG "sunxi oops: gpu frequency: %d MHz\n",
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pll >= 1000000 ? pll/1000000 : 0);
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/*
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* CPU OR GPU TEMP
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*/
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printk(KERN_EMERG "sunxi oops: cpu temperature: %d \n", 0);
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}
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#endif /* CONFIG_SUNXI_OOPS_HOOK */
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#endif /* __SUNXI_OOPS_H__ */
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