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From: Xingyu Chen <xingyu.chen@amlogic.com>
To: Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	Kevin Hilman <khilman@baylibre.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Cc: Xingyu Chen <xingyu.chen@amlogic.com>,
	Rob Herring <robh+dt@kernel.org>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Qianggui Song <qianggui.song@amlogic.com>,
	Jianxin Pan <jianxin.pan@amlogic.com>,
	Jian Hu <jian.hu@amlogic.com>, <linux-watchdog@vger.kernel.org>,
	<linux-amlogic@lists.infradead.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH 1/4] firmware: meson_sm: add new SMC ID support for accessing secure watchdog
Date: Sat, 12 Oct 2019 18:05:18 +0800
Message-ID: <1570874721-36077-2-git-send-email-xingyu.chen@amlogic.com> (raw)
In-Reply-To: <1570874721-36077-1-git-send-email-xingyu.chen@amlogic.com>

The new SMC ID is used to access secure registers by meson secure
watchdog driver.

Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
---
 drivers/firmware/meson/meson_sm.c       | 1 +
 include/linux/firmware/meson/meson_sm.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
index 1d5b4d7..46a44de 100644
--- a/drivers/firmware/meson/meson_sm.c
+++ b/drivers/firmware/meson/meson_sm.c
@@ -44,6 +44,7 @@ static const struct meson_sm_chip gxbb_chip = {
 		CMD(SM_EFUSE_WRITE,	0x82000031),
 		CMD(SM_EFUSE_USER_MAX,	0x82000033),
 		CMD(SM_GET_CHIP_ID,	0x82000044),
+		CMD(SM_WATCHDOG_OPS,	0x82000086),
 		{ /* sentinel */ },
 	},
 };
diff --git a/include/linux/firmware/meson/meson_sm.h b/include/linux/firmware/meson/meson_sm.h
index 6669e2a..0934718 100644
--- a/include/linux/firmware/meson/meson_sm.h
+++ b/include/linux/firmware/meson/meson_sm.h
@@ -12,6 +12,7 @@ enum {
 	SM_EFUSE_WRITE,
 	SM_EFUSE_USER_MAX,
 	SM_GET_CHIP_ID,
+	SM_WATCHDOG_OPS,
 };
 
 struct meson_sm_firmware;
-- 
2.7.4


  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-12 10:05 [PATCH 0/4] add meson secure watchdog driver Xingyu Chen
2019-10-12 10:05 ` Xingyu Chen [this message]
2019-10-12 10:05 ` [PATCH 2/4] dt-bindings: watchdog: add new binding for meson secure watchdog Xingyu Chen
2019-10-12 10:05 ` [PATCH 3/4] watchdog: add meson secure watchdog driver Xingyu Chen
2019-10-12 14:29   ` Guenter Roeck
2019-10-14 11:42     ` Xingyu Chen
2019-10-14 13:49       ` Guenter Roeck
2019-10-15  5:45         ` Xingyu Chen
2019-10-12 10:05 ` [PATCH 4/4] arm64: dts: a1: add secure watchdog controller Xingyu Chen

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