blob: 1ebe2b3f68847a11335aa70437108be246c724aa [file] [log] [blame]
/*
* Copyright (c) 2021, Weidmueller Interface GmbH & Co. KG
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_ETHERNET_XLNX_GEM_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_ETHERNET_XLNX_GEM_H_
/* PHY auto-detection alias */
#define XLNX_GEM_PHY_AUTO_DETECT 0
/* MDC divider values */
#define XLNX_GEM_MDC_DIVIDER_8 0 /* LPD_LSBUS_CLK < 20 MHz */
#define XLNX_GEM_MDC_DIVIDER_16 1 /* LPD_LSBUS_CLK 20 - 40 MHz */
#define XLNX_GEM_MDC_DIVIDER_32 2 /* LPD_LSBUS_CLK 40 - 80 MHz */
/*
* According to the ZynqMP's gem.network_config register documentation,
* divider /32 is to be used for a 100 MHz LPD LSBUS clock.
*/
#define XLNX_GEM_MDC_DIVIDER_48 3 /* LPD_LSBUS_CLK 80 - 120 MHz */
/* Link speed values */
#define XLNX_GEM_LINK_SPEED_10MBIT 1
#define XLNX_GEM_LINK_SPEED_100MBIT 2
#define XLNX_GEM_LINK_SPEED_1GBIT 3
/* AMBA AHB data bus width */
#define XLNX_GEM_AMBA_AHB_DBUS_WIDTH_32BIT 0
#define XLNX_GEM_AMBA_AHB_DBUS_WIDTH_64BIT 1
#define XLNX_GEM_AMBA_AHB_DBUS_WIDTH_128BIT 2
/* AMBA AHB burst length */
#define XLNX_GEM_AMBA_AHB_BURST_SINGLE 1
#define XLNX_GEM_AMBA_AHB_BURST_INCR4 4
#define XLNX_GEM_AMBA_AHB_BURST_INCR8 8
#define XLNX_GEM_AMBA_AHB_BURST_INCR16 16
/* Hardware RX buffer size */
#define XLNX_GEM_HW_RX_BUFFER_SIZE_1KB 0
#define XLNX_GEM_HW_RX_BUFFER_SIZE_2KB 1
#define XLNX_GEM_HW_RX_BUFFER_SIZE_4KB 2
#define XLNX_GEM_HW_RX_BUFFER_SIZE_8KB 3
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_ETHERNET_XLNX_GEM_H_ */