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authorBing Fan <tombinfan@tencent.com>2022-06-24 10:24:42 +0800
committerWim Van Sebroeck <wim@linux-watchdog.org>2022-07-23 14:21:24 +0200
commit3b1905456aad0d111bba3388165e7bb78537db72 (patch)
tree4752ba94877c2b25dd0853e6e5ddb3dae83ffd5f /drivers/watchdog
parentc6d9c0798ed366a09a9e53d71edcd2266e34a6eb (diff)
watchdog: sp805_wdt: add arm cmsdk apb wdt support
Support arm CMSDK ip apb watchdog device. Description details of this device can be found in the document DDI0479D_m_class_processor_system_r1p1_trm.pdf on the arm's document web. Which periphid is 0x001bb824. The registers are basically the same as the 805, just a few more: Periphid4/5/6/7 with offset 0xFD0/0xFD4/0xFD8/0xFDC. For the register description of arm,sp805, please refer to the document DDI0270-arm-sp805.pdf. Signed-off-by: Bing Fan <tombinfan@tencent.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1656037482-19505-1-git-send-email-hptsfb@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/sp805_wdt.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index f9479a3fe2a6..78ba36689eec 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* drivers/char/watchdog/sp805-wdt.c
*
@@ -341,6 +342,10 @@ static const struct amba_id sp805_wdt_ids[] = {
.id = 0x00141805,
.mask = 0x00ffffff,
},
+ {
+ .id = 0x001bb824,
+ .mask = 0x00ffffff,
+ },
{ 0, 0 },
};