// SPDX-License-Identifier: GPL-2.0-only /* * Intel IXP4xx Network Processor Engine driver for Linux * * Copyright (C) 2007 Krzysztof Halasa <[email protected]> * * The code is based on publicly available information: * - Intel IXP4xx Developer's Manual and other e-papers * - Intel IXP400 Access Library Software (BSD license) * - previous works by Christian Hohnstaedt <[email protected]> * Thanks, Christian. */ #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/firmware.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/soc/ixp4xx/npe.h> #include <linux/soc/ixp4xx/cpu.h> #define DEBUG_MSG … #define DEBUG_FW … #define NPE_COUNT … #define MAX_RETRIES … #define NPE_42X_DATA_SIZE … #define NPE_46X_DATA_SIZE … #define NPE_A_42X_INSTR_SIZE … #define NPE_B_AND_C_42X_INSTR_SIZE … #define NPE_46X_INSTR_SIZE … #define REGS_SIZE … #define NPE_PHYS_REG … #define FW_MAGIC … #define FW_BLOCK_TYPE_INSTR … #define FW_BLOCK_TYPE_DATA … #define FW_BLOCK_TYPE_EOF … /* NPE exec status (read) and command (write) */ #define CMD_NPE_STEP … #define CMD_NPE_START … #define CMD_NPE_STOP … #define CMD_NPE_CLR_PIPE … #define CMD_CLR_PROFILE_CNT … #define CMD_RD_INS_MEM … #define CMD_WR_INS_MEM … #define CMD_RD_DATA_MEM … #define CMD_WR_DATA_MEM … #define CMD_RD_ECS_REG … #define CMD_WR_ECS_REG … #define STAT_RUN … #define STAT_STOP … #define STAT_CLEAR … #define STAT_ECS_K … #define NPE_STEVT … #define NPE_STARTPC … #define NPE_REGMAP … #define NPE_CINDEX … #define INSTR_WR_REG_SHORT … #define INSTR_WR_REG_BYTE … #define INSTR_RD_FIFO … #define INSTR_RESET_MBOX … #define ECS_BG_CTXT_REG_0 … #define ECS_BG_CTXT_REG_1 … #define ECS_BG_CTXT_REG_2 … #define ECS_PRI_1_CTXT_REG_0 … #define ECS_PRI_1_CTXT_REG_1 … #define ECS_PRI_1_CTXT_REG_2 … #define ECS_PRI_2_CTXT_REG_0 … #define ECS_PRI_2_CTXT_REG_1 … #define ECS_PRI_2_CTXT_REG_2 … #define ECS_DBG_CTXT_REG_0 … #define ECS_DBG_CTXT_REG_1 … #define ECS_DBG_CTXT_REG_2 … #define ECS_INSTRUCT_REG … #define ECS_REG_0_ACTIVE … #define ECS_REG_0_NEXTPC_MASK … #define ECS_REG_0_LDUR_BITS … #define ECS_REG_0_LDUR_MASK … #define ECS_REG_1_CCTXT_BITS … #define ECS_REG_1_CCTXT_MASK … #define ECS_REG_1_SELCTXT_BITS … #define ECS_REG_1_SELCTXT_MASK … #define ECS_DBG_REG_2_IF … #define ECS_DBG_REG_2_IE … /* NPE watchpoint_fifo register bit */ #define WFIFO_VALID … /* NPE messaging_status register bit definitions */ #define MSGSTAT_OFNE … #define MSGSTAT_IFNF … #define MSGSTAT_OFNF … #define MSGSTAT_IFNE … #define MSGSTAT_MBINT … #define MSGSTAT_IFINT … #define MSGSTAT_OFINT … #define MSGSTAT_WFINT … /* NPE messaging_control register bit definitions */ #define MSGCTL_OUT_FIFO … #define MSGCTL_IN_FIFO … #define MSGCTL_OUT_FIFO_WRITE … #define MSGCTL_IN_FIFO_WRITE … /* NPE mailbox_status value for reset */ #define RESET_MBOX_STAT … #define NPE_A_FIRMWARE … #define NPE_B_FIRMWARE … #define NPE_C_FIRMWARE … const char *npe_names[] = …; #define print_npe(pri, npe, fmt, ...) … #if DEBUG_MSG #define debug_msg … #else #define debug_msg(npe, fmt, ...) … #endif static struct { … } ecs_reset[] = …; static struct npe npe_tab[NPE_COUNT] = …; int npe_running(struct npe *npe) { … } static void npe_cmd_write(struct npe *npe, u32 addr, int cmd, u32 data) { … } static u32 npe_cmd_read(struct npe *npe, u32 addr, int cmd) { … } static void npe_clear_active(struct npe *npe, u32 reg) { … } static void npe_start(struct npe *npe) { … } static void npe_stop(struct npe *npe) { … } static int __must_check npe_debug_instr(struct npe *npe, u32 instr, u32 ctx, u32 ldur) { … } static int __must_check npe_logical_reg_write8(struct npe *npe, u32 addr, u8 val, u32 ctx) { … } static int __must_check npe_logical_reg_write16(struct npe *npe, u32 addr, u16 val, u32 ctx) { … } static int __must_check npe_logical_reg_write32(struct npe *npe, u32 addr, u32 val, u32 ctx) { … } static int npe_reset(struct npe *npe) { … } int npe_send_message(struct npe *npe, const void *msg, const char *what) { … } int npe_recv_message(struct npe *npe, void *msg, const char *what) { … } int npe_send_recv_message(struct npe *npe, void *msg, const char *what) { … } int npe_load_firmware(struct npe *npe, const char *name, struct device *dev) { … } struct npe *npe_request(unsigned id) { … } void npe_release(struct npe *npe) { … } static int ixp4xx_npe_probe(struct platform_device *pdev) { … } static void ixp4xx_npe_remove(struct platform_device *pdev) { … } static const struct of_device_id ixp4xx_npe_of_match[] = …; static struct platform_driver ixp4xx_npe_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…); EXPORT_SYMBOL(…);
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