diff options
Diffstat (limited to 'bsps/arm/beagle/include/bsp/am335x_dcan.h')
| -rw-r--r-- | bsps/arm/beagle/include/bsp/am335x_dcan.h | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/bsps/arm/beagle/include/bsp/am335x_dcan.h b/bsps/arm/beagle/include/bsp/am335x_dcan.h deleted file mode 100644 index c83f3a91ab..0000000000 --- a/bsps/arm/beagle/include/bsp/am335x_dcan.h +++ /dev/null @@ -1,106 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ - -/** - * @file - * - * @ingroup CANBus - * - * @brief Controller Area Network (DCAN) Controller Implementation - * - */ - -/* - * Copyright (C) 2022 Prashanth S (fishesprashanth@gmail.com) - * - * 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 _BSP_AM335X_CAN_H -#define _BSP_AM335X_CAN_H - -#include <stdio.h> - -#include <dev/can/can.h> -#include <bsp.h> - -#define CAN_NODES 2 - -#define CAN_NUM_OF_MSG_OBJS (0x40) -#define CAN_RX_MSG_OBJ_NUM (0x20) -#define CAN_TX_MSG_OBJ_NUM (0x20) - -#define CAN_EXT_MSG (0x00000001) - -#define CAN_TX_MSG_OBJ_START_NUM ((CAN_NUM_OF_MSG_OBJS / 2) + 1) -#define CAN_TX_MSG_OBJ_END_NUM (CAN_NUM_OF_MSG_OBJS) - -#define CAN_RX_MSG_OBJ_START_NUM (1) -#define CAN_RX_MSG_OBJ_END_NUM (CAN_NUM_OF_MSG_OBJS / 2) - -#define DCAN_IFCMD_MSG_NUM_SHIFT (0) /* Bits 0-7: Number of message object in message RAM which is used for data transfer */ -#define DCAN_IFCMD_MSG_NUM_MASK (0xff << DCAN_IFCMD_MSG_NUM_SHIFT) -#define DCAN_IFCMD_MSG_NUM(n) (((unsigned int)(n) & DCAN_IFCMD_MSG_NUM_MASK) << DCAN_IFCMD_MSG_NUM_SHIFT) - -#define CONTROL_STATUS_SYSBOOT1_MASK (3 << CONTROL_STATUS_SYSBOOT1_SHIFT) -#define CONTROL_STATUS_SYSBOOT1_19p2MHZ (0 << CONTROL_STATUS_SYSBOOT1_SHIFT) -#define CONTROL_STATUS_SYSBOOT1_24MHZ (1 << CONTROL_STATUS_SYSBOOT1_SHIFT) -#define CONTROL_STATUS_SYSBOOT1_25MHZ (2 << CONTROL_STATUS_SYSBOOT1_SHIFT) -#define CONTROL_STATUS_SYSBOOT1_26MHZ (3 << CONTROL_STATUS_SYSBOOT1_SHIFT) - -#define CONFIG_AM335X_CAN_TSEG1 6 -#define CONFIG_AM335X_CAN_TSEG2 1 -#define CAN_BIT_QUANTA (CONFIG_AM335X_CAN_TSEG1 + CONFIG_AM335X_CAN_TSEG2 + 1) -#define CAN_CLOCK_FREQUENCY (am335x_get_sysclk()) - -struct am335x_dcan_irq { - uint32_t dcan_intr0; - uint32_t dcan_intr1; - uint32_t dcan_parity; -}; - -struct am335x_dcan_priv { - uint32_t node; - uint32_t base_reg; - uint32_t baudrate; - struct can_bus *bus; - struct am335x_dcan_irq irq; -}; - -int dcan_init(struct am335x_dcan_priv *dcan_priv); -void beagle_can_init(void *node); - -void dcan_init_ops(struct am335x_dcan_priv *priv); - -#define can_putreg(priv, off, val) \ - do { \ - REG(priv->base_reg + off) = val; \ - CAN_DEBUG_REG("%s:%d %08x<-%08x\n", __FILE__, __LINE__, priv->base_reg + off, val); \ - } while (0) - -static inline uint32_t can_getreg(struct am335x_dcan_priv *priv, uint32_t off) -{ - CAN_DEBUG_REG("can_getreg 0x%08x = 0x%08x\n", priv->base_reg + off, - REG(priv->base_reg + off)); - return REG(priv->base_reg + off); -} - -#endif /* _BSP_AM335X_CAN_H */ |