feat(plat/mediatek/apu): add mt8192 APU SiP call support

Add APU SiP call support for start/stop mcu.
Signed-off-by: Flora Fu <flora.fu@mediatek.com>
Change-Id: Ibf93d8ccf22c414de3093cee9e13f7668588f69e
Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@mediatek.com>

plat/mediatek/common/mtk_sip_svc.h

@@ -35,6 +35,10 @@
 #define MTK_SIP_VCORE_CONTROL_ARCH32		0x82000506
 #define MTK_SIP_VCORE_CONTROL_ARCH64		0xC2000506
 
+/* APUSYS SMC call */
+#define MTK_SIP_APUSYS_CONTROL_AARCH32		0x8200051E
+#define MTK_SIP_APUSYS_CONTROL_AARCH64		0xC200051E
+
 /* Mediatek SiP Calls error code */
 enum {
 	MTK_SIP_E_SUCCESS = 0,

plat/mediatek/mt8192/drivers/apusys/mtk_apusys.c

+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <drivers/console.h>
+#include <lib/mmio.h>
+#include <mtk_apusys.h>
+#include <plat/common/platform.h>
+
+uint64_t apusys_kernel_ctrl(uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4,
+			    uint32_t *ret1)
+{
+	uint32_t request_ops;
+
+	request_ops = (uint32_t)x1;
+	INFO("[APUSYS] ops=0x%x\n", request_ops);
+
+	switch (request_ops) {
+	case MTK_SIP_APU_START_MCU:
+		/* setup addr[33:32] in reviser */
+		mmio_write_32(REVISER_SECUREFW_CTXT, 0U);
+		mmio_write_32(REVISER_USDRFW_CTXT, 0U);
+
+		/* setup secure sideband */
+		mmio_write_32(AO_SEC_FW,
+			      (SEC_FW_NON_SECURE << SEC_FW_SHIFT_NS) |
+			      (0U << SEC_FW_DOMAIN_SHIFT));
+
+		/* setup boot address */
+		mmio_write_32(AO_MD32_BOOT_CTRL, 0U);
+
+		/* setup pre-define region */
+		mmio_write_32(AO_MD32_PRE_DEFINE,
+			      (PRE_DEFINE_CACHE_TCM << PRE_DEFINE_SHIFT_0G) |
+			      (PRE_DEFINE_CACHE << PRE_DEFINE_SHIFT_1G) |
+			      (PRE_DEFINE_CACHE << PRE_DEFINE_SHIFT_2G) |
+			      (PRE_DEFINE_CACHE << PRE_DEFINE_SHIFT_3G));
+
+		/* release runstall */
+		mmio_write_32(AO_MD32_SYS_CTRL, SYS_CTRL_RUN);
+
+		INFO("[APUSYS] reviser_ctxt=%x,%x\n",
+		     mmio_read_32(REVISER_SECUREFW_CTXT),
+		     mmio_read_32(REVISER_USDRFW_CTXT));
+		INFO("[APUSYS]fw=0x%08x,boot=0x%08x,def=0x%08x,sys=0x%08x\n",
+		     mmio_read_32(AO_SEC_FW),
+		     mmio_read_32(AO_MD32_BOOT_CTRL),
+		     mmio_read_32(AO_MD32_PRE_DEFINE),
+		     mmio_read_32(AO_MD32_SYS_CTRL));
+		break;
+	case MTK_SIP_APU_STOP_MCU:
+		/* hold runstall */
+		mmio_write_32(AO_MD32_SYS_CTRL, SYS_CTRL_STALL);
+
+		INFO("[APUSYS] md32_boot_ctrl=0x%08x,runstall=0x%08x\n",
+		     mmio_read_32(AO_MD32_BOOT_CTRL),
+		     mmio_read_32(AO_MD32_SYS_CTRL));
+		break;
+	default:
+		ERROR("%s, unknown request_ops = %x\n", __func__, request_ops);
+		break;
+	}
+
+	return 0UL;
+}

plat/mediatek/mt8192/drivers/apusys/mtk_apusys.h

+/*
+ * Copyright (c) 2021, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __MTK_APUSYS_H__
+#define __MTK_APUSYS_H__
+
+#include <stdint.h>
+
+/* setup the SMC command ops */
+#define MTK_SIP_APU_START_MCU	0x00U
+#define MTK_SIP_APU_STOP_MCU	0x01U
+
+/* AO Register */
+#define AO_MD32_PRE_DEFINE	(APUSYS_APU_S_S_4_BASE + 0x00)
+#define AO_MD32_BOOT_CTRL	(APUSYS_APU_S_S_4_BASE + 0x04)
+#define AO_MD32_SYS_CTRL	(APUSYS_APU_S_S_4_BASE + 0x08)
+#define AO_SEC_FW		(APUSYS_APU_S_S_4_BASE + 0x10)
+
+#define PRE_DEFINE_CACHE_TCM	0x3U
+#define PRE_DEFINE_CACHE	0x2U
+#define PRE_DEFINE_SHIFT_0G	0U
+#define PRE_DEFINE_SHIFT_1G	2U
+#define PRE_DEFINE_SHIFT_2G	4U
+#define PRE_DEFINE_SHIFT_3G	6U
+
+#define SEC_FW_NON_SECURE	1U
+#define SEC_FW_SHIFT_NS		4U
+#define SEC_FW_DOMAIN_SHIFT	0U
+
+#define SYS_CTRL_RUN		0U
+#define SYS_CTRL_STALL		1U
+
+/* Reviser Register */
+#define REVISER_SECUREFW_CTXT     (APUSYS_SCTRL_REVISER_BASE + 0x300)
+#define REVISER_USDRFW_CTXT       (APUSYS_SCTRL_REVISER_BASE + 0x304)
+
+uint64_t apusys_kernel_ctrl(uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4,
+			    uint32_t *ret1);
+#endif /* __MTK_APUSYS_H__ */

plat/mediatek/mt8192/plat_sip_calls.c

@@ -6,6 +6,7 @@
 
 #include <common/debug.h>
 #include <common/runtime_svc.h>
+#include <mtk_apusys.h>
 #include <mtk_sip_svc.h>
 #include <mt_spm_vcorefs.h>
 #include "plat_sip_calls.h"
@@ -20,6 +21,7 @@ uintptr_t mediatek_plat_sip_handler(uint32_t smc_fid,
 				u_register_t flags)
 {
 	uint64_t ret;
+	uint32_t rnd_val0 = 0U;
 
 	switch (smc_fid) {
 	case MTK_SIP_VCORE_CONTROL_ARCH32:
@@ -27,6 +29,11 @@ uintptr_t mediatek_plat_sip_handler(uint32_t smc_fid,
 		ret = spm_vcorefs_args(x1, x2, x3, (uint64_t *)&x4);
 		SMC_RET2(handle, ret, x4);
 		break;
+	case MTK_SIP_APUSYS_CONTROL_AARCH32:
+	case MTK_SIP_APUSYS_CONTROL_AARCH64:
+		ret = apusys_kernel_ctrl(x1, x2, x3, x4, &rnd_val0);
+		SMC_RET2(handle, ret, rnd_val0);
+		break;
 	default:
 		ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
 		break;

plat/mediatek/mt8192/platform.mk

@@ -16,6 +16,7 @@ PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
                  -I${MTK_PLAT}/common/lpm/                        \
                  -I${MTK_PLAT_SOC}/include/                       \
                  -I${MTK_PLAT_SOC}/drivers/                       \
+                 -I${MTK_PLAT_SOC}/drivers/apusys/                \
                  -I${MTK_PLAT_SOC}/drivers/dcm                    \
                  -I${MTK_PLAT_SOC}/drivers/devapc                 \
                  -I${MTK_PLAT_SOC}/drivers/emi_mpu/               \
@@ -62,6 +63,7 @@ BL31_SOURCES    += common/desc_image_load.c                              \
                    ${MTK_PLAT_SOC}/plat_pm.c                             \
                    ${MTK_PLAT_SOC}/plat_topology.c                       \
                    ${MTK_PLAT_SOC}/plat_sip_calls.c                      \
+                   ${MTK_PLAT_SOC}/drivers/apusys/mtk_apusys.c           \
                    ${MTK_PLAT_SOC}/drivers/dcm/mtk_dcm.c                 \
                    ${MTK_PLAT_SOC}/drivers/dcm/mtk_dcm_utils.c           \
                    ${MTK_PLAT_SOC}/drivers/devapc/devapc.c               \