| Quellcodebibliothek Statistik Leitseite products/sources/formale Sprachen/C/Linux/include/linux/ (Open Source Betriebssystem Version 6.17.9©) Datei vom 24.10.2025 mit Größe 3 kB |
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Quelle mbus.h Sprache: C |
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/*
* Marvell MBUS common definitions. * * Copyright (C) 2008 Marvell Semiconductor * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #ifndef __LINUX_MBUS_H #define __LINUX_MBUS_H #include <linux/errno.h> struct resource; struct mbus_dram_target_info { /* * The 4-bit MBUS target ID of the DRAM controller. */ u8 mbus_dram_target_id; /* * The base address, size, and MBUS attribute ID for each * of the possible DRAM chip selects. Peripherals are * required to support at least 4 decode windows. */ int num_cs; struct mbus_dram_window { u8 cs_index; u8 mbus_attr; u64 base; u64 size; } cs[4]; }; /* Flags for PCI/PCIe address decoding regions */ #define MVEBU_MBUS_PCI_IO 0x1 #define MVEBU_MBUS_PCI_MEM 0x2 #define MVEBU_MBUS_PCI_WA 0x3 /* * Magic value that explicits that we don't need a remapping-capable * address decoding window. */ #define MVEBU_MBUS_NO_REMAP (0xffffffff) /* Maximum size of a mbus window name */ #define MVEBU_MBUS_MAX_WINNAME_SZ 32 /* * The Marvell mbus is to be found only on SOCs from the Orion family * at the moment. Provide a dummy stub for other architectures. */ #ifdef CONFIG_PLAT_ORION extern const struct mbus_dram_target_info *mv_mbus_dram_info(void); extern const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(void); int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target, u8 *attr); #else static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void) { return NULL; } static inline const struct mbus_dram_target_info *mv_mbus_dram_info_nooverlap(void) { return NULL; } static inline int mvebu_mbus_get_io_win_info(phys_addr_t phyaddr, u32 *size, u8 *target, u8 *attr) { /* * On all ARM32 MVEBU platforms with MBus support, this stub * function will not get called. The real function from the * MBus driver is called instead. ARM64 MVEBU platforms like * the Armada 3700 could use the mv_xor device driver which calls * into this function */ return -EINVAL; } #endif #ifdef CONFIG_MVEBU_MBUS int mvebu_mbus_save_cpu_target(u32 __iomem *store_addr); void mvebu_mbus_get_pcie_mem_aperture(struct resource *res); void mvebu_mbus_get_pcie_io_aperture(struct resource *res); int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr); int mvebu_mbus_add_window_remap_by_id(unsigned int target, unsigned int attribute, phys_addr_t base, size_t size, phys_addr_t remap); int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute, phys_addr_t base, size_t size); int mvebu_mbus_del_window(phys_addr_t base, size_t size); int mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base, size_t mbus_size, phys_addr_t sdram_phys_base, size_t sdram_size); int mvebu_mbus_dt_init(bool is_coherent); #else static inline int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr) { return -EINVAL; } #endif /* CONFIG_MVEBU_MBUS */ #endif /* __LINUX_MBUS_H */ ¤ Dauer der Verarbeitung: 0.14 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28