forked from Imagelibrary/rtems
e01e499490
This patch changes the license to BSD-2 for all source files where the copyright is held by Aeroflex Gaisler, Cobham Gaisler, or Gaisler Research. Some files also includes copyright right statements from OAR and/or embedded Brains in addition to Gaisler. Updates #3053.
115 lines
3.9 KiB
C
115 lines
3.9 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
|
|
|
|
/* LEON2 Hardcoded bus driver interface.
|
|
*
|
|
* COPYRIGHT (c) 2008.
|
|
* Cobham Gaisler AB.
|
|
*
|
|
* Bus driver for a hardcoded setup. LEON2 systems have some
|
|
* cores always present, here called "Standard Cores". In
|
|
* addtion to the standard cores there are often extra cores
|
|
* that can be defined using the "Custom Cores" mechanism.
|
|
*
|
|
* A Core is described by assigning a base register and
|
|
* IRQ0..IRQ15 using the leon2_core structure.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef __LEON2_AMBA_BUS_H__
|
|
#define __LEON2_AMBA_BUS_H__
|
|
|
|
/*** Cores location and IRQs hardcoded ***/
|
|
|
|
#include <drvmgr/drvmgr.h>
|
|
#include <grlib/ambapp.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* LEON2 AMBA Driver ID generation */
|
|
#define DRIVER_LEON2_AMBA(id) DRIVER_ID(DRVMGR_BUS_TYPE_LEON2_AMBA, id)
|
|
|
|
/* LEON2 Cores (any unique 48-bit number will do) */
|
|
#define LEON2_AMBA_NONE_ID 0
|
|
#define LEON2_AMBA_TIMER_ID 1
|
|
#define LEON2_AMBA_UART_ID 2
|
|
#define LEON2_AMBA_GPIO_ID 3
|
|
#define LEON2_AMBA_IRQCTRL_ID 4
|
|
|
|
#define LEON2_AMBA_AT697PCI_ID 100
|
|
#define LEON2_AMBA_AMBAPP_ID 0xfff0
|
|
|
|
/* LEON2 driver IDs */
|
|
#define DRIVER_LEON2_AMBA_TIMER DRIVER_LEON2_AMBA(LEON2_AMBA_TIMER_ID)
|
|
#define DRIVER_LEON2_AMBA_UART DRIVER_LEON2_AMBA(LEON2_AMBA_UART_ID)
|
|
#define DRIVER_LEON2_AMBA_AT697PCI DRIVER_LEON2_AMBA(LEON2_AMBA_AT697PCI_ID)
|
|
#define DRIVER_LEON2_AMBA_AMBAPP DRIVER_LEON2_AMBA(LEON2_AMBA_AMBAPP_ID)
|
|
|
|
struct leon2_amba_dev_id {
|
|
unsigned short core_id;
|
|
};
|
|
|
|
#define EMPTY_LEON2_CORE {{LEON2_AMBA_NONE_ID}, NULL, NULL}
|
|
struct leon2_core {
|
|
struct leon2_amba_dev_id id; /* Core ID */
|
|
char *name; /* Name of Core */
|
|
struct drvmgr_key *keys; /* Core setup (location, IRQs) */
|
|
};
|
|
|
|
struct leon2_bus {
|
|
struct leon2_core *std_cores; /* The LEON2 standard cores */
|
|
struct leon2_core *custom_cores; /* Custom cores on the same bus */
|
|
struct drvmgr_map_entry *maps_up; /* Memory map ip-stream */
|
|
struct drvmgr_map_entry *maps_down; /* Memory map down-stream */
|
|
};
|
|
|
|
extern struct leon2_core leon2_std_cores[];
|
|
|
|
/* Data structure drivers can access */
|
|
struct leon2_amba_dev_info {
|
|
unsigned short core_id; /* Core ID */
|
|
unsigned int reg_base; /* Register base */
|
|
char irqs[16]; /* 16 irqs */
|
|
};
|
|
|
|
struct leon2_amba_drv_info {
|
|
struct drvmgr_drv general; /* General bus info */
|
|
/* AMBA specific bus information */
|
|
struct leon2_amba_dev_id *ids; /* Supported hardware */
|
|
};
|
|
|
|
/* Initialize LEON2 bus with a configuration
|
|
* bus_config - What cores, their location and irqs
|
|
* resources - Driver configuration for the cores specified bus_config
|
|
*/
|
|
int leon2_root_register(
|
|
struct leon2_bus *bus_config,
|
|
struct drvmgr_bus_res *resources);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|