/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2019 MediaTek Inc. */ #ifndef __RPROC_MTK_COMMON_H #define __RPROC_MTK_COMMON_H #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/remoteproc.h> #include <linux/remoteproc/mtk_scp.h> #define MT8183_SW_RSTN 0x0 #define MT8183_SW_RSTN_BIT BIT(0) #define MT8183_SCP_TO_HOST 0x1C #define MT8183_SCP_IPC_INT_BIT BIT(0) #define MT8183_SCP_WDT_INT_BIT BIT(8) #define MT8183_HOST_TO_SCP 0x28 #define MT8183_HOST_IPC_INT_BIT BIT(0) #define MT8183_WDT_CFG 0x84 #define MT8183_SCP_CLK_SW_SEL 0x4000 #define MT8183_SCP_CLK_DIV_SEL 0x4024 #define MT8183_SCP_SRAM_PDN 0x402C #define MT8183_SCP_L1_SRAM_PD 0x4080 #define MT8183_SCP_TCM_TAIL_SRAM_PD 0x4094 #define MT8183_SCP_CACHE_SEL(x) (0x14000 + (x) * 0x3000) #define MT8183_SCP_CACHE_CON MT8183_SCP_CACHE_SEL(0) #define MT8183_SCP_DCACHE_CON MT8183_SCP_CACHE_SEL(1) #define MT8183_SCP_CACHESIZE_8KB BIT(8) #define MT8183_SCP_CACHE_CON_WAYEN BIT(10) #define SCP_FW_VER_LEN 32 #define SCP_SHARE_BUFFER_SIZE 288 struct scp_run { u32 signaled; s8 fw_ver[SCP_FW_VER_LEN]; u32 dec_capability; u32 enc_capability; wait_queue_head_t wq; }; struct scp_ipi_desc { /* For protecting handler. */ struct mutex lock; scp_ipi_handler_t handler; void *priv; }; struct mtk_scp { struct device *dev; struct rproc *rproc; struct clk *clk; void __iomem *reg_base; void __iomem *sram_base; size_t sram_size; struct mtk_share_obj __iomem *recv_buf; struct mtk_share_obj __iomem *send_buf; struct scp_run run; /* To prevent multiple ipi_send run concurrently. */ struct mutex send_lock; struct scp_ipi_desc ipi_desc[SCP_IPI_MAX]; bool ipi_id_ack[SCP_IPI_MAX]; wait_queue_head_t ack_wq; void __iomem *cpu_addr; dma_addr_t dma_addr; size_t dram_size; struct rproc_subdev *rpmsg_subdev; }; /** * struct mtk_share_obj - SRAM buffer shared with AP and SCP * * @id: IPI id * @len: share buffer length * @share_buf: share buffer data */ struct mtk_share_obj { u32 id; u32 len; u8 share_buf[SCP_SHARE_BUFFER_SIZE]; }; void scp_memcpy_aligned(void __iomem *dst, const void *src, unsigned int len); void scp_ipi_lock(struct mtk_scp *scp, u32 id); void scp_ipi_unlock(struct mtk_scp *scp, u32 id); #endif