From 53dabc29f2eb44761f4bc28e7f5e211bfeffb234 Mon Sep 17 00:00:00 2001 From: Tristan Shieh Date: Tue, 12 Jun 2018 14:23:01 +0800 Subject: mediatek: Move watchdog timer code to a common directory Move watchdog timer (WDT) code which can be reused into a common directory under soc/mediatek. BUG=b:80501386 BRANCH=none TEST=Boots correctly on Elm Change-Id: Icbeb04f775c3c0fdc18dd198df8591f5c4b6ddce Signed-off-by: Tristan Shieh Reviewed-on: https://review.coreboot.org/27025 Reviewed-by: Julius Werner Tested-by: build bot (Jenkins) --- src/soc/mediatek/mt8173/wdt.c | 63 ------------------------------------------- 1 file changed, 63 deletions(-) delete mode 100644 src/soc/mediatek/mt8173/wdt.c (limited to 'src/soc/mediatek/mt8173/wdt.c') diff --git a/src/soc/mediatek/mt8173/wdt.c b/src/soc/mediatek/mt8173/wdt.c deleted file mode 100644 index bd2a614586..0000000000 --- a/src/soc/mediatek/mt8173/wdt.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2015 MediaTek Inc. - * - * 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; version 2 of the License. - * - * 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. - */ - -#include -#include -#include -#include -#include -#include - -static struct mtk_wdt_regs *const mtk_wdt = (void *)RGU_BASE; - -int mtk_wdt_init(void) -{ - uint32_t wdt_sta; - - /* Write Mode register will clear status register */ - wdt_sta = read32(&mtk_wdt->wdt_status); - - printk(BIOS_INFO, "WDT: Last reset was "); - if (wdt_sta & MTK_WDT_STA_HW_RST) { - printk(BIOS_INFO, "hardware watchdog\n"); - mark_watchdog_tombstone(); - } else if (wdt_sta & MTK_WDT_STA_SW_RST) - printk(BIOS_INFO, "normal software reboot\n"); - else if (wdt_sta & MTK_WDT_STA_SPM_RST) - printk(BIOS_INFO, "SPM reboot\n"); - else if (!wdt_sta) - printk(BIOS_INFO, "cold boot\n"); - else - printk(BIOS_INFO, "unexpected reset type: %#.8x\n", wdt_sta); - - /* Config watchdog reboot mode: - * Clearing bits: - * DUAL_MODE & IRQ: trigger reset instead of irq then reset. - * EXT_POL: select watchdog output signal as active low. - * ENABLE: disable watchdog on initialization. - * Setting bit EXTEN to enable watchdog output. - */ - clrsetbits_le32(&mtk_wdt->wdt_mode, - MTK_WDT_MODE_DUAL_MODE | MTK_WDT_MODE_IRQ | - MTK_WDT_MODE_EXT_POL | MTK_WDT_MODE_ENABLE, - MTK_WDT_MODE_EXTEN | MTK_WDT_MODE_KEY); - - return wdt_sta; -} - -void do_hard_reset(void) -{ - write32(&mtk_wdt->wdt_swrst, MTK_WDT_SWRST_KEY); -} -- cgit v1.2.3