// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2023, STMicroelectronics - All Rights Reserved */ #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/device.h> #include <linux/err.h> #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/types.h> #include "stm32_firewall.h" /* * RIFSC offset register */ #define RIFSC_RISC_SECCFGR0 … #define RIFSC_RISC_PRIVCFGR0 … #define RIFSC_RISC_PER0_CIDCFGR … #define RIFSC_RISC_PER0_SEMCR … #define RIFSC_RISC_HWCFGR2 … /* * SEMCR register */ #define SEMCR_MUTEX … /* * HWCFGR2 register */ #define HWCFGR2_CONF1_MASK … #define HWCFGR2_CONF2_MASK … #define HWCFGR2_CONF3_MASK … /* * RIFSC miscellaneous */ #define RIFSC_RISC_CFEN_MASK … #define RIFSC_RISC_SEM_EN_MASK … #define RIFSC_RISC_SCID_MASK … #define RIFSC_RISC_SEML_SHIFT … #define RIFSC_RISC_SEMWL_MASK … #define RIFSC_RISC_PER_ID_MASK … #define RIFSC_RISC_PERx_CID_MASK … #define IDS_PER_RISC_SEC_PRIV_REGS … /* RIF miscellaneous */ /* * CIDCFGR register fields */ #define CIDCFGR_CFEN … #define CIDCFGR_SEMEN … #define CIDCFGR_SEMWL(x) … #define SEMWL_SHIFT … /* Compartiment IDs */ #define RIF_CID0 … #define RIF_CID1 … static bool stm32_rifsc_is_semaphore_available(void __iomem *addr) { … } static int stm32_rif_acquire_semaphore(struct stm32_firewall_controller *stm32_firewall_controller, int id) { … } static void stm32_rif_release_semaphore(struct stm32_firewall_controller *stm32_firewall_controller, int id) { … } static int stm32_rifsc_grant_access(struct stm32_firewall_controller *ctrl, u32 firewall_id) { … } static void stm32_rifsc_release_access(struct stm32_firewall_controller *ctrl, u32 firewall_id) { … } static int stm32_rifsc_probe(struct platform_device *pdev) { … } static const struct of_device_id stm32_rifsc_of_match[] = …; MODULE_DEVICE_TABLE(of, stm32_rifsc_of_match); static struct platform_driver stm32_rifsc_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux