From 33f74b893a46448670f11375427f0084753c23b6 Mon Sep 17 00:00:00 2001 From: Rob Kramer Date: Mon, 8 Feb 2016 18:09:49 +0800 Subject: [PATCH] watchdog: w83627hf: Added NCT6102D support. As used in (and tested on) the ASRock IMB-150 board. Implementation is identical to other NCT chips, just with different registers. Signed-off-by: Rob Kramer Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/Kconfig | 1 + drivers/watchdog/w83627hf_wdt.c | 22 +++++++++++++++++++--- 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 0f6d8515ba4f..b5f39b7e853d 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -1142,6 +1142,7 @@ config W83627HF_WDT NCT6779 NCT6791 NCT6792 + NCT6102D/04D/06D This watchdog simply watches your kernel to make sure it doesn't freeze, and if it does, it reboots your computer after a certain diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c index cab14bc9106c..09e8003039dc 100644 --- a/drivers/watchdog/w83627hf_wdt.c +++ b/drivers/watchdog/w83627hf_wdt.c @@ -45,10 +45,11 @@ static int wdt_io; static int cr_wdt_timeout; /* WDT timeout register */ static int cr_wdt_control; /* WDT control register */ +static int cr_wdt_csr; /* WDT control & status register */ enum chips { w83627hf, w83627s, w83697hf, w83697ug, w83637hf, w83627thf, w83687thf, w83627ehf, w83627dhg, w83627uhg, w83667hg, w83627dhg_p, - w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792 }; + w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792, nct6102 }; static int timeout; /* in seconds */ module_param(timeout, int, 0); @@ -92,15 +93,21 @@ MODULE_PARM_DESC(early_disable, "Disable watchdog at boot time (default=0)"); #define W83667HG_B_ID 0xb3 #define NCT6775_ID 0xb4 #define NCT6776_ID 0xc3 +#define NCT6102_ID 0xc4 #define NCT6779_ID 0xc5 #define NCT6791_ID 0xc8 #define NCT6792_ID 0xc9 #define W83627HF_WDT_TIMEOUT 0xf6 #define W83697HF_WDT_TIMEOUT 0xf4 +#define NCT6102D_WDT_TIMEOUT 0xf1 #define W83627HF_WDT_CONTROL 0xf5 #define W83697HF_WDT_CONTROL 0xf3 +#define NCT6102D_WDT_CONTROL 0xf0 + +#define W836X7HF_WDT_CSR 0xf7 +#define NCT6102D_WDT_CSR 0xf2 static void superio_outb(int reg, int val) { @@ -197,6 +204,7 @@ static int w83627hf_init(struct watchdog_device *wdog, enum chips chip) case nct6779: case nct6791: case nct6792: + case nct6102: /* * These chips have a fixed WDTO# output pin (W83627UHG), * or support more than one WDTO# output pin. @@ -229,8 +237,8 @@ static int w83627hf_init(struct watchdog_device *wdog, enum chips chip) superio_outb(cr_wdt_control, t); /* reset trigger, disable keyboard & mouse turning off watchdog */ - t = superio_inb(0xF7) & ~0xD0; - superio_outb(0xF7, t); + t = superio_inb(cr_wdt_csr) & ~0xD0; + superio_outb(cr_wdt_csr, t); superio_exit(); @@ -322,6 +330,7 @@ static int wdt_find(int addr) cr_wdt_timeout = W83627HF_WDT_TIMEOUT; cr_wdt_control = W83627HF_WDT_CONTROL; + cr_wdt_csr = W836X7HF_WDT_CSR; ret = superio_enter(); if (ret) @@ -387,6 +396,12 @@ static int wdt_find(int addr) case NCT6792_ID: ret = nct6792; break; + case NCT6102_ID: + ret = nct6102; + cr_wdt_timeout = NCT6102D_WDT_TIMEOUT; + cr_wdt_control = NCT6102D_WDT_CONTROL; + cr_wdt_csr = NCT6102D_WDT_CSR; + break; case 0xff: ret = -ENODEV; break; @@ -422,6 +437,7 @@ static int __init wdt_init(void) "NCT6779", "NCT6791", "NCT6792", + "NCT6102", }; wdt_io = 0x2e; -- 2.20.1