diff options
Diffstat (limited to 'drivers/remoteproc/mtk_common.h')
| -rw-r--r-- | drivers/remoteproc/mtk_common.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/remoteproc/mtk_common.h b/drivers/remoteproc/mtk_common.h new file mode 100644 index 000000000..ea6fa1100 --- /dev/null +++ b/drivers/remoteproc/mtk_common.h @@ -0,0 +1,141 @@ +/* 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 MT8186_SCP_L1_SRAM_PD_P1 0x40B0 +#define MT8186_SCP_L1_SRAM_PD_p2 0x40B4 + +#define MT8192_L2TCM_SRAM_PD_0 0x10C0 +#define MT8192_L2TCM_SRAM_PD_1 0x10C4 +#define MT8192_L2TCM_SRAM_PD_2 0x10C8 +#define MT8192_L1TCM_SRAM_PDN 0x102C +#define MT8192_CPU0_SRAM_PD 0x1080 + +#define MT8192_SCP2APMCU_IPC_SET 0x4080 +#define MT8192_SCP2APMCU_IPC_CLR 0x4084 +#define MT8192_SCP_IPC_INT_BIT BIT(0) +#define MT8192_SCP2SPM_IPC_CLR 0x4094 +#define MT8192_GIPC_IN_SET 0x4098 +#define MT8192_HOST_IPC_INT_BIT BIT(0) + +#define MT8192_CORE0_SW_RSTN_CLR 0x10000 +#define MT8192_CORE0_SW_RSTN_SET 0x10004 +#define MT8192_CORE0_MEM_ATT_PREDEF 0x10008 +#define MT8192_CORE0_WDT_IRQ 0x10030 +#define MT8192_CORE0_WDT_CFG 0x10034 + +#define MT8195_L1TCM_SRAM_PDN_RESERVED_RSI_BITS GENMASK(7, 4) + +#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 mtk_scp_of_data { + int (*scp_clk_get)(struct mtk_scp *scp); + int (*scp_before_load)(struct mtk_scp *scp); + void (*scp_irq_handler)(struct mtk_scp *scp); + void (*scp_reset_assert)(struct mtk_scp *scp); + void (*scp_reset_deassert)(struct mtk_scp *scp); + void (*scp_stop)(struct mtk_scp *scp); + void *(*scp_da_to_va)(struct mtk_scp *scp, u64 da, size_t len); + + u32 host_to_scp_reg; + u32 host_to_scp_int_bit; + + size_t ipi_buf_offset; +}; + +struct mtk_scp { + struct device *dev; + struct rproc *rproc; + struct clk *clk; + void __iomem *reg_base; + void __iomem *sram_base; + size_t sram_size; + phys_addr_t sram_phys; + void __iomem *l1tcm_base; + size_t l1tcm_size; + phys_addr_t l1tcm_phys; + + const struct mtk_scp_of_data *data; + + 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 *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 |