linux-kernel - [PATCH v2 1/1] soc: mediatek: add SMC fid table for SIP interface

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Date:   Mon, 11 Nov 2019 10:30:02 +0800
From:   Eason Yen <eason.yen@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <wsd_upstream@...iatek.com>, Eason Yen <eason.yen@...iatek.com>
Subject: [PATCH v2 1/1] soc: mediatek: add SMC fid table for SIP interface

1. Add a header file to provide SIP interface to ATF
for clients, please define MTK_SIP_XXX  with specific ID

2. Add AUDIO SMC fid
mtk sip call example:
arm_smccc_smc(MTK_SIP_AUDIO_CONTROL,
              MTK_AUDIO_SMC_OP_DRAM_REQUEST,
              0, 0, 0, 0, 0, 0, &res)

Signed-off-by: Eason Yen <eason.yen@...iatek.com>
---
 include/linux/soc/mediatek/mtk_sip_svc.h |   28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 include/linux/soc/mediatek/mtk_sip_svc.h

diff --git a/include/linux/soc/mediatek/mtk_sip_svc.h b/include/linux/soc/mediatek/mtk_sip_svc.h
new file mode 100644
index 0000000..00ee0f4
--- /dev/null
+++ b/include/linux/soc/mediatek/mtk_sip_svc.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ */
+
+#ifndef __MTK_SIP_SVC_H__
+#define __MTK_SIP_SVC_H__
+
+#include <linux/kernel.h>
+
+/* Error Code */
+#define SIP_SVC_E_SUCCESS               0
+#define SIP_SVC_E_NOT_SUPPORTED         -1
+#define SIP_SVC_E_INVALID_PARAMS        -2
+#define SIP_SVC_E_INVALID_Range         -3
+#define SIP_SVC_E_PERMISSION_DENY       -4
+
+#ifdef CONFIG_ARM64
+#define MTK_SIP_SMC_AARCH_BIT			0x40000000
+#else
+#define MTK_SIP_SMC_AARCH_BIT			0x00000000
+#endif
+
+/* AUDIO related SMC call */
+#define MTK_SIP_AUDIO_CONTROL \
+	(0x82000517 | MTK_SIP_SMC_AARCH_BIT)
+#endif
+/* __MTK_SIP_SVC_H__ */
-- 
1.7.9.5