diff options
Diffstat (limited to 'drivers/staging/fsl-mc/include/mc-private.h')
| -rw-r--r-- | drivers/staging/fsl-mc/include/mc-private.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/staging/fsl-mc/include/mc-private.h b/drivers/staging/fsl-mc/include/mc-private.h new file mode 100644 index 000000000000..5c957c452fdd --- /dev/null +++ b/drivers/staging/fsl-mc/include/mc-private.h @@ -0,0 +1,67 @@ +/* + * Freescale Management Complex (MC) bus private declarations + * + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Author: German Rivera <German.Rivera@freescale.com> + * + * 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 _FSL_MC_PRIVATE_H_ +#define _FSL_MC_PRIVATE_H_ + +#include "../include/mc.h" +#include <linux/mutex.h> +#include <linux/stringify.h> + +#define FSL_MC_DEVICE_MATCH(_mc_dev, _obj_desc) \ + (strcmp((_mc_dev)->obj_desc.type, (_obj_desc)->type) == 0 && \ + (_mc_dev)->obj_desc.id == (_obj_desc)->id) + +/** + * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device + * @root_mc_bus_dev: MC object device representing the root DPRC + * @addr_translation_ranges: array of bus to system address translation ranges + */ +struct fsl_mc { + struct fsl_mc_device *root_mc_bus_dev; + uint8_t num_translation_ranges; + struct fsl_mc_addr_translation_range *translation_ranges; +}; + +/** + * struct fsl_mc_bus - logical bus that corresponds to a physical DPRC + * @mc_dev: fsl-mc device for the bus device itself. + * @scan_mutex: Serializes bus scanning + */ +struct fsl_mc_bus { + struct fsl_mc_device mc_dev; + struct mutex scan_mutex; /* serializes bus scanning */ +}; + +#define to_fsl_mc_bus(_mc_dev) \ + container_of(_mc_dev, struct fsl_mc_bus, mc_dev) + +/** + * struct fsl_mc_addr_translation_range - bus to system address translation + * range + * @start_mc_addr: Start MC address of the range being translated + * @end_mc_addr: MC address of the first byte after the range (last MC + * address of the range is end_mc_addr - 1) + * @start_phys_addr: system physical address corresponding to start_mc_addr + */ +struct fsl_mc_addr_translation_range { + uint64_t start_mc_addr; + uint64_t end_mc_addr; + phys_addr_t start_phys_addr; +}; + +int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc, + struct fsl_mc_io *mc_io, + struct device *parent_dev, + struct fsl_mc_device **new_mc_dev); + +void fsl_mc_device_remove(struct fsl_mc_device *mc_dev); + +#endif /* _FSL_MC_PRIVATE_H_ */ |