These are: * External Watchdog test; * dsPIC tests; * FPGA test; * GDC test; * Sysmon tests. Signed-off-by: Dmitry Rakhchev <rda@emcraft.com> Signed-off-by: Yuri Tikhonov <yur@emcraft.com>master
Yuri Tikhonov
17 years ago
committed by
Wolfgang Denk
parent
8dc3b2303d
commit
65b20dcefc
@ -0,0 +1,28 @@ |
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#
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# (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com
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#
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# Developed for DENX Software Engineering GmbH
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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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 as
|
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# published by the Free Software Foundation; either version 2 of
|
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# 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,
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# MA 02111-1307 USA
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LIB = libpostlwmon5.a
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COBJS = sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o
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include $(TOPDIR)/post/rules.mk |
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@ -0,0 +1,58 @@ |
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/*
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* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com |
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* |
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* Developed for DENX Software Engineering GmbH |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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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 as |
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* published by the Free Software Foundation; either version 2 of |
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* 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, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#ifdef CONFIG_POST |
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#include <post.h> |
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#if CONFIG_POST & CFG_POST_DSP |
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#include <asm/io.h> |
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/* This test verifies DSP status bits in FPGA */ |
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DECLARE_GLOBAL_DATA_PTR; |
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#define DSP_STATUS_REG 0xC4000008 |
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int dsp_post_test(int flags) |
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{ |
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uint read_value; |
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int ret; |
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ret = 0; |
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read_value = in_be32((void *)DSP_STATUS_REG) & 0x3; |
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if (read_value != 0x3) { |
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post_log("\nDSP status read %08X\n", read_value); |
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ret = 1; |
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} |
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return ret; |
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} |
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#endif /* CONFIG_POST & CFG_POST_DSP */ |
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#endif /* CONFIG_POST */ |
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@ -0,0 +1,109 @@ |
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/*
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* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com |
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* |
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* Developed for DENX Software Engineering GmbH |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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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 as |
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* published by the Free Software Foundation; either version 2 of |
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* 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, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#ifdef CONFIG_POST |
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/* There are two tests for dsPIC currently implemented:
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* 1. dsPIC ready test. Done in board_early_init_f(). Only result verified here. |
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* 2. dsPIC POST result test. This test gets dsPIC POST codes and version. |
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*/ |
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#include <post.h> |
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#include <i2c.h> |
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#include <asm/io.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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#define DSPIC_POST_ERROR_REG 0x800 |
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#define DSPIC_SYS_ERROR_REG 0x802 |
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#define DSPIC_VERSION_REG 0x804 |
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#if CONFIG_POST & CFG_POST_BSPEC1 |
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/* Verify that dsPIC ready test done early at hw init passed ok */ |
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int dspic_init_post_test(int flags) |
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{ |
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if (in_be32((void *)CFG_DSPIC_TEST_ADDR) & CFG_DSPIC_TEST_MASK) { |
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post_log("dsPIC init test failed\n"); |
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return 1; |
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} |
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return 0; |
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} |
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#endif /* CONFIG_POST & CFG_POST_BSPEC1 */ |
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#if CONFIG_POST & CFG_POST_BSPEC2 |
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/* Read a register from the dsPIC. */ |
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int dspic_read(ushort reg) |
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{ |
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uchar buf[2]; |
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if (i2c_read(CFG_I2C_DSPIC_IO_ADDR, reg, 2, buf, 2)) |
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return -1; |
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return (uint)((buf[0] << 8) | buf[1]); |
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} |
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/* Verify error codes regs, display version */ |
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int dspic_post_test(int flags) |
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{ |
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int data; |
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int ret = 0; |
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post_log("\n"); |
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data = dspic_read(DSPIC_VERSION_REG); |
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if (data == -1) { |
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post_log("dsPIC : failed read version\n"); |
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ret = 1; |
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} else { |
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post_log("dsPIC version: %u.%u\n", |
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(data >> 8) & 0xFF, data & 0xFF); |
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} |
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data = dspic_read(DSPIC_POST_ERROR_REG); |
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if (data != 0) ret = 1; |
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if (data == -1) { |
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post_log("dsPIC : failed read POST code\n"); |
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} else { |
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post_log("dsPIC POST code 0x%04X\n", data); |
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} |
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data = dspic_read(DSPIC_SYS_ERROR_REG); |
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if (data != 0) ret = 1; |
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if (data == -1) { |
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post_log("dsPIC : failed read system error\n"); |
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} else { |
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post_log("dsPIC SYS-ERROR code: 0x%04X\n", data); |
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} |
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return ret; |
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} |
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#endif /* CONFIG_POST & CFG_POST_BSPEC2 */ |
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#endif /* CONFIG_POST */ |
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@ -0,0 +1,104 @@ |
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/*
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* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com |
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* |
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* Developed for DENX Software Engineering GmbH |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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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 as |
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* published by the Free Software Foundation; either version 2 of |
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* 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, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#ifdef CONFIG_POST |
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/* This test performs testing of FPGA SCRATCH register,
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* gets FPGA version and run get_ram_size() on FPGA memory |
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*/ |
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#include <post.h> |
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#include <asm/io.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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#define FPGA_SCRATCH_REG 0xC4000050 |
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#define FPGA_VERSION_REG 0xC4000040 |
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#define FPGA_RAM_START 0xC4200000 |
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#define FPGA_RAM_END 0xC4203FFF |
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#define FPGA_PWM_CTRL_REG 0xC4000020 |
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#define FPGA_PWM_TV_REG 0xC4000024 |
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/* Turn on backlight, set brightness */ |
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void fpga_backlight_enable(int pwm) |
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{ |
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out_be16((void *)FPGA_PWM_CTRL_REG, 0x0701); |
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out_be16((void *)FPGA_PWM_TV_REG, pwm); |
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} |
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#if CONFIG_POST & CFG_POST_BSPEC3 |
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static int one_scratch_test(uint value) |
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{ |
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uint read_value; |
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int ret = 0; |
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out_be32((void *)FPGA_SCRATCH_REG, value); |
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/* read other location (protect against data lines capacity) */ |
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ret = in_be16((void *)FPGA_VERSION_REG); |
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/* verify test pattern */ |
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read_value = in_be32((void *)FPGA_SCRATCH_REG); |
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if (read_value != value) { |
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post_log("FPGA SCRATCH test failed write %08X, read %08X\n", |
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value, read_value); |
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ret = 1; |
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} |
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return ret; |
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} |
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/* Verify FPGA, get version & memory size */ |
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int fpga_post_test(int flags) |
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{ |
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uint old_value; |
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ushort version; |
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uint read_value; |
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int ret = 0; |
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post_log("\n"); |
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old_value = in_be32((void *)FPGA_SCRATCH_REG); |
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if (one_scratch_test(0x55555555)) |
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ret = 1; |
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if (one_scratch_test(0xAAAAAAAA)) |
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ret = 1; |
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out_be32((void *)FPGA_SCRATCH_REG, old_value); |
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version = in_be16((void *)FPGA_VERSION_REG); |
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post_log("FPGA : version %u.%u\n", |
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(version >> 8) & 0xFF, version & 0xFF); |
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read_value = get_ram_size((void *)CFG_FPGA_BASE_1, 0x4000); |
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post_log("FPGA RAM size: %d bytes\n", read_value); |
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return ret; |
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} |
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#endif /* CONFIG_POST & CFG_POST_BSPEC3 */ |
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#endif /* CONFIG_POST */ |
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@ -0,0 +1,94 @@ |
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/*
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* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com |
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* |
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* Developed for DENX Software Engineering GmbH |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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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 as |
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* published by the Free Software Foundation; either version 2 of |
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* 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, |
||||
* 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 |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#ifdef CONFIG_POST |
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/* This test attempts to verify board GDC. A scratch register tested, then
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* simple memory test (get_ram_size()) run over GDC memory. |
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*/ |
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#include <post.h> |
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#include <asm/io.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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#define GDC_SCRATCH_REG 0xC1FF8044 |
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#define GDC_VERSION_REG 0xC1FF8084 |
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#define GDC_RAM_START 0xC0000000 |
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#define GDC_RAM_END 0xC2000000 |
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#if CONFIG_POST & CFG_POST_BSPEC4 |
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static int gdc_test_reg_one(uint value) |
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{ |
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int ret = 0; |
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uint read_value; |
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/* write test pattern */ |
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out_be32((void *)GDC_SCRATCH_REG, value); |
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/* read other location (protect against data lines capacity) */ |
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ret = in_be32((void *)GDC_RAM_START); |
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/* verify test pattern */ |
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read_value = in_be32((void *)GDC_SCRATCH_REG); |
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if (read_value != value) { |
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post_log("GDC SCRATCH test failed write %08X, read %08X\n", |
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value, read_value); |
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ret = 1; |
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} |
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return ret; |
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} |
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/* Verify GDC, get memory size */ |
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int gdc_post_test(int flags) |
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{ |
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uint old_value; |
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int ret = 0; |
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post_log("\n"); |
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old_value = in_be32((void *)GDC_SCRATCH_REG); |
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if (gdc_test_reg_one(0x55555555)) |
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ret = 1; |
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if (gdc_test_reg_one(0xAAAAAAAA)) |
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ret = 1; |
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out_be32((void *)GDC_SCRATCH_REG, old_value); |
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old_value = in_be32((void *)GDC_VERSION_REG); |
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post_log("GDC chip version %u.%u, year %04X\n", |
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(old_value >> 8) & 0xFF, old_value & 0xFF, |
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(old_value >> 16) & 0xFFFF); |
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old_value = get_ram_size((void *)GDC_RAM_START, |
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GDC_RAM_END - GDC_RAM_START); |
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post_log("GDC RAM size: %d bytes\n", old_value); |
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return ret; |
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} |
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#endif /* CONFIG_POST & CFG_POST_BSPEC4 */ |
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#endif /* CONFIG_POST */ |
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@ -0,0 +1,265 @@ |
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/*
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* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com |
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* |
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* Developed for DENX Software Engineering GmbH |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
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* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <post.h> |
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#include <common.h> |
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#ifdef CONFIG_POST |
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/*
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* SYSMON test |
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* |
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* This test performs the system hardware monitoring. |
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* The test passes when all the following voltages and temperatures |
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* are within allowed ranges: |
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* |
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* Temperature -40 .. +85 C |
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* +5V +4.75 .. +5.25 V |
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* +5V standby +4.75 .. +5.25 V |
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* |
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* LCD backlight is not enabled if temperature values are not within |
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* allowed ranges (-30 .. + 80). The brightness of backlite can be |
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* controlled by setting "brightness" enviroment variable. Default value is 50% |
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* |
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* See the list of all parameters in the sysmon_table below |
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*/ |
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#include <post.h> |
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#include <watchdog.h> |
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#include <i2c.h> |
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#if CONFIG_POST & CFG_POST_SYSMON |
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DECLARE_GLOBAL_DATA_PTR; |
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#define DEFAULT_BRIGHTNESS 50 |
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|
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/* from dspic.c */ |
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extern int dspic_read(ushort reg); |
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/* from fpga.c */ |
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extern void fpga_backlight_enable(int v); |
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static int sysmon_temp_invalid; |
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#define RELOC(x) if (x != NULL) x = (void *) ((ulong) (x) + gd->reloc_off) |
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typedef struct sysmon_s sysmon_t; |
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typedef struct sysmon_table_s sysmon_table_t; |
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static void sysmon_dspic_init (sysmon_t * this); |
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static int sysmon_dspic_read (sysmon_t * this, uint addr); |
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static void sysmon_backlight_disable (sysmon_table_t * this); |
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static void sysmon_backlight_enable (sysmon_table_t * this); |
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struct sysmon_s |
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{ |
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uchar chip; |
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void (*init)(sysmon_t *); |
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int (*read)(sysmon_t *, uint); |
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}; |
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|
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static sysmon_t sysmon_dspic = |
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{CFG_I2C_DSPIC_IO_ADDR, sysmon_dspic_init, sysmon_dspic_read}; |
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|
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static sysmon_t * sysmon_list[] = |
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{ |
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&sysmon_dspic, |
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NULL |
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}; |
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|
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struct sysmon_table_s |
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{ |
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char * name; |
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char * unit_name; |
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sysmon_t * sysmon; |
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void (*exec_before)(sysmon_table_t *); |
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void (*exec_after)(sysmon_table_t *); |
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|
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int unit_precision; |
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int unit_div; |
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int unit_min; |
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int unit_max; |
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uint val_mask; |
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uint val_min; |
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uint val_max; |
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int val_valid; |
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uint val_min_alt; |
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uint val_max_alt; |
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int val_valid_alt; |
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uint addr; |
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}; |
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|
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static sysmon_table_t sysmon_table[] = |
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{ |
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{"Temperature", " C", &sysmon_dspic, NULL, sysmon_backlight_disable, |
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1, 1, -32768, 32767, 0xFFFF, 0x8000-40, 0x8000+85, 0, |
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0x8000-30, 0x8000+80, 0, 0x12BC}, |
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|
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{"+ 5 V", "V", &sysmon_dspic, NULL, NULL, |
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100, 1000, -0x8000, 0x7FFF, 0xFFFF, 0x8000+4750, 0x8000+5250, 0, |
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0x8000+4750, 0x8000+5250, 0, 0x12CA}, |
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|
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{"+ 5 V standby", "V", &sysmon_dspic, NULL, sysmon_backlight_enable, |
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100, 1000, -0x8000, 0x7FFF, 0xFFFF, 0x8000+4750, 0x8000+5250, 0, |
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0x8000+4750, 0x8000+5250, 0, 0x12C6}, |
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}; |
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static int sysmon_table_size = sizeof(sysmon_table) / sizeof(sysmon_table[0]); |
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|
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int sysmon_init_f (void) |
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{ |
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sysmon_t ** l; |
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|
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for (l = sysmon_list; *l; l++) |
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(*l)->init(*l); |
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|
||||
return 0; |
||||
} |
||||
|
||||
void sysmon_reloc (void) |
||||
{ |
||||
sysmon_t ** l; |
||||
sysmon_table_t * t; |
||||
|
||||
for (l = sysmon_list; *l; l++) { |
||||
RELOC(*l); |
||||
RELOC((*l)->init); |
||||
RELOC((*l)->read); |
||||
} |
||||
|
||||
for (t = sysmon_table; t < sysmon_table + sysmon_table_size; t ++) { |
||||
RELOC(t->exec_before); |
||||
RELOC(t->exec_after); |
||||
RELOC(t->sysmon); |
||||
} |
||||
} |
||||
|
||||
static char *sysmon_unit_value (sysmon_table_t *s, uint val) |
||||
{ |
||||
static char buf[32]; |
||||
char *p, sign; |
||||
int decimal, frac; |
||||
int unit_val; |
||||
|
||||
unit_val = |
||||
s->unit_min + (s->unit_max - s->unit_min) * val / s->val_mask; |
||||
|
||||
if (val == -1) |
||||
return "I/O ERROR"; |
||||
|
||||
if (unit_val < 0) { |
||||
sign = '-'; |
||||
unit_val = -unit_val; |
||||
} else |
||||
sign = '+'; |
||||
|
||||
p = buf + sprintf(buf, "%c%2d", sign, unit_val / s->unit_div); |
||||
|
||||
|
||||
frac = unit_val % s->unit_div; |
||||
|
||||
frac /= (s->unit_div / s->unit_precision); |
||||
|
||||
decimal = s->unit_precision; |
||||
|
||||
if (decimal != 1) |
||||
*p++ = '.'; |
||||
for (decimal /= 10; decimal != 0; decimal /= 10) |
||||
*p++ = '0' + (frac / decimal) % 10; |
||||
strcpy(p, s->unit_name); |
||||
|
||||
return buf; |
||||
} |
||||
|
||||
static void sysmon_dspic_init (sysmon_t * this) |
||||
{ |
||||
} |
||||
|
||||
static int sysmon_dspic_read (sysmon_t * this, uint addr) |
||||
{ |
||||
int res = dspic_read(addr); |
||||
|
||||
/* To fit into the table range we should add 0x8000 */ |
||||
return (res == -1) ? -1 : (res + 0x8000); |
||||
} |
||||
|
||||
static void sysmon_backlight_disable (sysmon_table_t * this) |
||||
{ |
||||
if (!this->val_valid_alt) |
||||
sysmon_temp_invalid = 1; |
||||
} |
||||
|
||||
static void sysmon_backlight_enable (sysmon_table_t * this) |
||||
{ |
||||
char * param; |
||||
int rc; |
||||
|
||||
if (!sysmon_temp_invalid) { |
||||
param = getenv("brightness"); |
||||
rc = param ? simple_strtol(param, NULL, 10) : -1; |
||||
if (rc >= 0) |
||||
fpga_backlight_enable(rc); |
||||
else |
||||
fpga_backlight_enable(DEFAULT_BRIGHTNESS); |
||||
} |
||||
} |
||||
|
||||
int sysmon_post_test (int flags) |
||||
{ |
||||
int res = 0; |
||||
sysmon_table_t * t; |
||||
int val; |
||||
|
||||
for (t = sysmon_table; t < sysmon_table + sysmon_table_size; t ++) { |
||||
if (t->exec_before) |
||||
t->exec_before(t); |
||||
|
||||
val = t->sysmon->read(t->sysmon, t->addr); |
||||
if (val != -1) { |
||||
t->val_valid = val >= t->val_min && val <= t->val_max; |
||||
t->val_valid_alt = val >= t->val_min_alt && val <= t->val_max_alt; |
||||
} else { |
||||
t->val_valid = 0; |
||||
t->val_valid_alt = 0; |
||||
} |
||||
|
||||
if (t->exec_after) |
||||
t->exec_after(t); |
||||
|
||||
if ((!t->val_valid) || (flags & POST_MANUAL)) { |
||||
printf("%-17s = %-10s ", t->name, sysmon_unit_value(t, val)); |
||||
printf("allowed range"); |
||||
printf(" %-8s ..", sysmon_unit_value(t, t->val_min)); |
||||
printf(" %-8s", sysmon_unit_value(t, t->val_max)); |
||||
printf(" %s\n", t->val_valid ? "OK" : "FAIL"); |
||||
} |
||||
|
||||
if (!t->val_valid) |
||||
res = 1; |
||||
} |
||||
|
||||
return res; |
||||
} |
||||
|
||||
#endif /* CONFIG_POST & CFG_POST_SYSMON */ |
||||
#endif /* CONFIG_POST */ |
||||
@ -0,0 +1,132 @@ |
||||
/*
|
||||
* (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com |
||||
* |
||||
* Developed for DENX Software Engineering GmbH |
||||
* |
||||
* See file CREDITS for list of people who contributed to this |
||||
* project. |
||||
* |
||||
* This program is free software; you can redistribute it and/or |
||||
* modify it under the terms of the GNU General Public License as |
||||
* published by the Free Software Foundation; either version 2 of |
||||
* the License, or (at your option) any later version. |
||||
* |
||||
* This program is distributed in the hope that it will be useful, |
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
||||
* GNU General Public License for more details. |
||||
* |
||||
* You should have received a copy of the GNU General Public License |
||||
* along with this program; if not, write to the Free Software |
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
||||
* MA 02111-1307 USA |
||||
*/ |
||||
|
||||
#include <common.h> |
||||
|
||||
/* This test verifies if the reason of last reset was an abnormal voltage
|
||||
* condition, than it performs watchdog test, measuing time required to |
||||
* trigger watchdog reset. |
||||
*/ |
||||
|
||||
#ifdef CONFIG_POST |
||||
|
||||
#include <post.h> |
||||
|
||||
#if CONFIG_POST & CFG_POST_WATCHDOG |
||||
|
||||
#include <watchdog.h> |
||||
#include <asm/gpio.h> |
||||
#include <asm/io.h> |
||||
|
||||
static uint watchdog_magic_read(void) |
||||
{ |
||||
return in_be32((void *)CFG_WATCHDOG_FLAGS_ADDR) & |
||||
CFG_WATCHDOG_MAGIC_MASK; |
||||
} |
||||
|
||||
static void watchdog_magic_write(uint value) |
||||
{ |
||||
out_be32((void *)CFG_WATCHDOG_FLAGS_ADDR, value | |
||||
(in_be32((void *)CFG_WATCHDOG_FLAGS_ADDR) & |
||||
~CFG_WATCHDOG_MAGIC_MASK)); |
||||
} |
||||
|
||||
int sysmon1_post_test(int flags) |
||||
{ |
||||
if (gpio_read_in_bit(CFG_GPIO_SYSMON_STATUS)) { |
||||
/* 3.1. GPIO62 is low
|
||||
* Assuming system voltage failure. |
||||
*/ |
||||
post_log("Abnormal voltage detected (GPIO62)\n"); |
||||
return 1; |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
int lwmon5_watchdog_post_test(int flags) |
||||
{ |
||||
/* On each reset scratch register 1 should be tested,
|
||||
* but first test GPIO62: |
||||
*/ |
||||
if (!(flags & POST_MANUAL) && sysmon1_post_test(flags)) { |
||||
/* 3.1. GPIO62 is low
|
||||
* Assuming system voltage failure. |
||||
*/ |
||||
/* 3.1.1. Set scratch register 1 to 0x0000xxxx */ |
||||
watchdog_magic_write(0); |
||||
/* 3.1.2. Mark test as failed due to voltage?! */ |
||||
return 1; |
||||
} |
||||
|
||||
if (watchdog_magic_read() != CFG_WATCHDOG_MAGIC) { |
||||
/* 3.2. Scratch register 1 differs from magic value 0x1248xxxx
|
||||
* Assuming PowerOn |
||||
*/ |
||||
int ints; |
||||
ulong base; |
||||
ulong time; |
||||
|
||||
/* 3.2.1. Set magic value to scratch register */ |
||||
watchdog_magic_write(CFG_WATCHDOG_MAGIC); |
||||
|
||||
ints = disable_interrupts (); |
||||
/* 3.2.2. strobe watchdog once */ |
||||
WATCHDOG_RESET(); |
||||
out_be32((void *)CFG_WATCHDOG_TIME_ADDR, 0); |
||||
/* 3.2.3. save time of strobe in scratch register 2 */ |
||||
base = post_time_ms (0); |
||||
|
||||
/* 3.2.4. Wait for 150 ms (enough for reset to happen) */ |
||||
while ((time = post_time_ms (base)) < 150) |
||||
out_be32((void *)CFG_WATCHDOG_TIME_ADDR, time); |
||||
if (ints) |
||||
enable_interrupts (); |
||||
|
||||
/* 3.2.5. Reset didn't happen. - Set 0x0000xxxx
|
||||
* into scratch register 1 |
||||
*/ |
||||
watchdog_magic_write(0); |
||||
/* 3.2.6. Mark test as failed. */ |
||||
post_log("hw watchdog time : %u ms, failed ", time); |
||||
return 2; |
||||
} else { |
||||
/* 3.3. Scratch register matches magic value 0x1248xxxx
|
||||
* Assume this is watchdog-initiated reset |
||||
*/ |
||||
ulong time; |
||||
/* 3.3.1. So, the test succeed, save measured time to syslog. */ |
||||
time = in_be32((void *)CFG_WATCHDOG_TIME_ADDR); |
||||
post_log("hw watchdog time : %u ms, passed ", time); |
||||
/* 3.3.2. Set scratch register 1 to 0x0000xxxx */ |
||||
watchdog_magic_write(0); |
||||
return 0; |
||||
} |
||||
return -1; |
||||
} |
||||
|
||||
|
||||
#endif /* CONFIG_POST & CFG_POST_WATCHDOG */ |
||||
#endif /* CONFIG_POST */ |
||||
|
||||
Loading…
Reference in new issue