mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 16:31:25 +01:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
119 lines
4.2 KiB
C
119 lines
4.2 KiB
C
/*
|
|
* Xilinx xps_ll_temac ethernet driver for u-boot
|
|
*
|
|
* FIFO sub-controller interface
|
|
*
|
|
* Copyright (C) 2011 - 2012 Stephan Linz <linz@li-pro.net>
|
|
* Copyright (C) 2008 - 2011 Michal Simek <monstr@monstr.eu>
|
|
* Copyright (C) 2008 - 2011 PetaLogix
|
|
*
|
|
* Based on Yoshio Kashiwagi kashiwagi@co-nss.co.jp driver
|
|
* Copyright (C) 2008 Nissin Systems Co.,Ltd.
|
|
* March 2008 created
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* [0]: http://www.xilinx.com/support/documentation
|
|
*
|
|
* [S]: [0]/ip_documentation/xps_ll_temac.pdf
|
|
* [A]: [0]/application_notes/xapp1041.pdf
|
|
*/
|
|
#ifndef _XILINX_LL_TEMAC_FIFO_
|
|
#define _XILINX_LL_TEMAC_FIFO_
|
|
|
|
#include <net.h>
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
#if !defined(__BIG_ENDIAN)
|
|
# error LL_TEMAC requires big endianess
|
|
#endif
|
|
|
|
/*
|
|
* FIFO Register Definition
|
|
*
|
|
* Used for memory mapped access from and to (Rd/Td) the LocalLink (LL)
|
|
* Tri-Mode Ether MAC (TEMAC) via the 2 kb full duplex FIFO Controller,
|
|
* one for each.
|
|
*
|
|
* [1]: [0]/ip_documentation/xps_ll_fifo.pdf
|
|
* page 10, Registers Definition
|
|
*/
|
|
struct fifo_ctrl {
|
|
u32 isr; /* Interrupt Status Register (RW) */
|
|
u32 ier; /* Interrupt Enable Register (RW) */
|
|
u32 tdfr; /* Transmit Data FIFO Reset (WO) */
|
|
u32 tdfv; /* Transmit Data FIFO Vacancy (RO) */
|
|
u32 tdfd; /* Transmit Data FIFO 32bit wide Data write port (WO) */
|
|
u32 tlf; /* Transmit Length FIFO (WO) */
|
|
u32 rdfr; /* Receive Data FIFO Reset (WO) */
|
|
u32 rdfo; /* Receive Data FIFO Occupancy (RO) */
|
|
u32 rdfd; /* Receive Data FIFO 32bit wide Data read port (RO) */
|
|
u32 rlf; /* Receive Length FIFO (RO) */
|
|
u32 llr; /* LocalLink Reset (WO) */
|
|
};
|
|
|
|
/* Interrupt Status Register (ISR), [1] p11 */
|
|
#define LL_FIFO_ISR_RPURE (1 << 31) /* Receive Packet Underrun Read Err */
|
|
#define LL_FIFO_ISR_RPORE (1 << 30) /* Receive Packet Overrun Read Err */
|
|
#define LL_FIFO_ISR_RPUE (1 << 29) /* Receive Packet Underrun Error */
|
|
#define LL_FIFO_ISR_TPOE (1 << 28) /* Transmit Packet Overrun Error */
|
|
#define LL_FIFO_ISR_TC (1 << 27) /* Transmit Complete */
|
|
#define LL_FIFO_ISR_RC (1 << 26) /* Receive Complete */
|
|
#define LL_FIFO_ISR_TSE (1 << 25) /* Transmit Size Error */
|
|
#define LL_FIFO_ISR_TRC (1 << 24) /* Transmit Reset Complete */
|
|
#define LL_FIFO_ISR_RRC (1 << 23) /* Receive Reset Complete */
|
|
|
|
/* Interrupt Enable Register (IER), [1] p12/p13 */
|
|
#define LL_FIFO_IER_RPURE (1 << 31) /* Receive Packet Underrun Read Err */
|
|
#define LL_FIFO_IER_RPORE (1 << 30) /* Receive Packet Overrun Read Err */
|
|
#define LL_FIFO_IER_RPUE (1 << 29) /* Receive Packet Underrun Error */
|
|
#define LL_FIFO_IER_TPOE (1 << 28) /* Transmit Packet Overrun Error */
|
|
#define LL_FIFO_IER_TC (1 << 27) /* Transmit Complete */
|
|
#define LL_FIFO_IER_RC (1 << 26) /* Receive Complete */
|
|
#define LL_FIFO_IER_TSE (1 << 25) /* Transmit Size Error */
|
|
#define LL_FIFO_IER_TRC (1 << 24) /* Transmit Reset Complete */
|
|
#define LL_FIFO_IER_RRC (1 << 23) /* Receive Reset Complete */
|
|
|
|
/* Transmit Data FIFO Reset (TDFR), [1] p13/p14 */
|
|
#define LL_FIFO_TDFR_KEY 0x000000A5UL
|
|
|
|
/* Transmit Data FIFO Vacancy (TDFV), [1] p14 */
|
|
#define LL_FIFO_TDFV_POS 0
|
|
#define LL_FIFO_TDFV_MASK (0x000001FFUL << LL_FIFO_TDFV_POS)
|
|
|
|
/* Transmit Length FIFO (TLF), [1] p16/p17 */
|
|
#define LL_FIFO_TLF_POS 0
|
|
#define LL_FIFO_TLF_MASK (0x000007FFUL << LL_FIFO_TLF_POS)
|
|
#define LL_FIFO_TLF_MIN ((4 * sizeof(u32)) & LL_FIFO_TLF_MASK)
|
|
#define LL_FIFO_TLF_MAX ((510 * sizeof(u32)) & LL_FIFO_TLF_MASK)
|
|
|
|
/* Receive Data FIFO Reset (RDFR), [1] p15 */
|
|
#define LL_FIFO_RDFR_KEY 0x000000A5UL
|
|
|
|
/* Receive Data FIFO Occupancy (RDFO), [1] p16 */
|
|
#define LL_FIFO_RDFO_POS 0
|
|
#define LL_FIFO_RDFO_MASK (0x000001FFUL << LL_FIFO_RDFO_POS)
|
|
|
|
/* Receive Length FIFO (RLF), [1] p17/p18 */
|
|
#define LL_FIFO_RLF_POS 0
|
|
#define LL_FIFO_RLF_MASK (0x000007FFUL << LL_FIFO_RLF_POS)
|
|
#define LL_FIFO_RLF_MIN ((4 * sizeof(uint32)) & LL_FIFO_RLF_MASK)
|
|
#define LL_FIFO_RLF_MAX ((510 * sizeof(uint32)) & LL_FIFO_RLF_MASK)
|
|
|
|
/* LocalLink Reset (LLR), [1] p18 */
|
|
#define LL_FIFO_LLR_KEY 0x000000A5UL
|
|
|
|
|
|
/* reset FIFO and IRQ, disable interrupts */
|
|
int ll_temac_reset_fifo(struct eth_device *dev);
|
|
|
|
/* receive buffered data from FIFO (polling ISR) */
|
|
int ll_temac_recv_fifo(struct eth_device *dev);
|
|
|
|
/* send buffered data to FIFO */
|
|
int ll_temac_send_fifo(struct eth_device *dev, void *packet, int length);
|
|
|
|
#endif /* _XILINX_LL_TEMAC_FIFO_ */
|