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| author | Michal Simek <monstr@monstr.eu> | 2007-09-16 20:51:57 +0200 | 
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2007-09-16 20:51:57 +0200 | 
| commit | b49c90df6e7cfcfb8b862b8bbf8448dff5eed9a5 (patch) | |
| tree | f3beccf5727d2b169e8481601f2dc1c211490eea /drivers/net/xilinx_emaclite.c | |
| parent | 7201cfc4a79c0f55f5ebee73c5a626a49cb53f73 (diff) | |
| download | olio-uboot-2014.01-b49c90df6e7cfcfb8b862b8bbf8448dff5eed9a5.tar.xz olio-uboot-2014.01-b49c90df6e7cfcfb8b862b8bbf8448dff5eed9a5.zip | |
[FIX] remove files form repository
Diffstat (limited to 'drivers/net/xilinx_emaclite.c')
| -rw-r--r-- | drivers/net/xilinx_emaclite.c | 376 | 
1 files changed, 0 insertions, 376 deletions
| diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c deleted file mode 100644 index 5d8eaa518..000000000 --- a/drivers/net/xilinx_emaclite.c +++ /dev/null @@ -1,376 +0,0 @@ -/* - * (C) Copyright 2007 Michal Simek - * - * Michal SIMEK <monstr@monstr.eu> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <net.h> -#include <config.h> -#include <asm/io.h> - -#ifdef XILINX_EMACLITE_BASEADDR - -#undef DEBUG - -#define ENET_MAX_MTU		PKTSIZE -#define ENET_MAX_MTU_ALIGNED	PKTSIZE_ALIGN -#define ENET_ADDR_LENGTH	6 - -/* EmacLite constants */ -#define XEL_BUFFER_OFFSET	0x0800	/* Next buffer's offset */ -#define XEL_TPLR_OFFSET		0x07F4	/* Tx packet length */ -#define XEL_TSR_OFFSET		0x07FC	/* Tx status */ -#define XEL_RSR_OFFSET		0x17FC	/* Rx status */ -#define XEL_RXBUFF_OFFSET	0x1000	/* Receive Buffer */ - -/* Xmit complete */ -#define XEL_TSR_XMIT_BUSY_MASK		0x00000001UL -/* Xmit interrupt enable bit */ -#define XEL_TSR_XMIT_IE_MASK		0x00000008UL -/* Buffer is active, SW bit only */ -#define XEL_TSR_XMIT_ACTIVE_MASK	0x80000000UL -/* Program the MAC address */ -#define XEL_TSR_PROGRAM_MASK		0x00000002UL -/* define for programming the MAC address into the EMAC Lite */ -#define XEL_TSR_PROG_MAC_ADDR	(XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_PROGRAM_MASK) - -/* Transmit packet length upper byte */ -#define XEL_TPLR_LENGTH_MASK_HI		0x0000FF00UL -/* Transmit packet length lower byte */ -#define XEL_TPLR_LENGTH_MASK_LO		0x000000FFUL - -/* Recv complete */ -#define XEL_RSR_RECV_DONE_MASK		0x00000001UL -/* Recv interrupt enable bit */ -#define XEL_RSR_RECV_IE_MASK		0x00000008UL - -typedef struct { -	unsigned int baseaddress;	/* Base address for device (IPIF) */ -	unsigned int nexttxbuffertouse;	/* Next TX buffer to write to */ -	unsigned int nextrxbuffertouse;	/* Next RX buffer to read from */ -	unsigned char deviceid;		/* Unique ID of device - for future */ -} xemaclite; - -static xemaclite emaclite; - -static char etherrxbuff[PKTSIZE_ALIGN/4]; /* Receive buffer */ - -/* hardcoded MAC address for the Xilinx EMAC Core when env is nowhere*/ -#ifdef CFG_ENV_IS_NOWHERE -static u8 emacaddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 }; -#endif - -void xemaclite_alignedread (u32 * srcptr, void *destptr, unsigned bytecount) -{ -	unsigned int i; -	u32 alignbuffer; -	u32 *to32ptr; -	u32 *from32ptr; -	u8 *to8ptr; -	u8 *from8ptr; - -	from32ptr = (u32 *) srcptr; - -	/* Word aligned buffer, no correction needed. */ -	to32ptr = (u32 *) destptr; -	while (bytecount > 3) { -		*to32ptr++ = *from32ptr++; -		bytecount -= 4; -	} -	to8ptr = (u8 *) to32ptr; - -	alignbuffer = *from32ptr++; -	from8ptr = (u8 *) & alignbuffer; - -	for (i = 0; i < bytecount; i++) { -		*to8ptr++ = *from8ptr++; -	} -} - -void xemaclite_alignedwrite (void *srcptr, u32 destptr, unsigned bytecount) -{ -	unsigned i; -	u32 alignbuffer; -	u32 *to32ptr = (u32 *) destptr; -	u32 *from32ptr; -	u8 *to8ptr; -	u8 *from8ptr; - -	from32ptr = (u32 *) srcptr; -	while (bytecount > 3) { - -		*to32ptr++ = *from32ptr++; -		bytecount -= 4; -	} - -	alignbuffer = 0; -	to8ptr = (u8 *) & alignbuffer; -	from8ptr = (u8 *) from32ptr; - -	for (i = 0; i < bytecount; i++) { -		*to8ptr++ = *from8ptr++; -	} - -	*to32ptr++ = alignbuffer; -} - -void eth_halt (void) -{ -#ifdef DEBUG -	puts ("eth_halt\n"); -#endif -} - -int eth_init (bd_t * bis) -{ -#ifdef DEBUG -	puts ("EmacLite Initialization Started\n"); -#endif -	memset (&emaclite, 0, sizeof (xemaclite)); -	emaclite.baseaddress = XILINX_EMACLITE_BASEADDR; - -	if (!getenv("ethaddr")) { -		memcpy(bis->bi_enetaddr, emacaddr, ENET_ADDR_LENGTH); -	} - -/* - * TX - TX_PING & TX_PONG initialization - */ -	/* Restart PING TX */ -	out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, 0); -	/* Copy MAC address */ -	xemaclite_alignedwrite (bis->bi_enetaddr, -		emaclite.baseaddress, ENET_ADDR_LENGTH); -	/* Set the length */ -	out_be32 (emaclite.baseaddress + XEL_TPLR_OFFSET, ENET_ADDR_LENGTH); -	/* Update the MAC address in the EMAC Lite */ -	out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, XEL_TSR_PROG_MAC_ADDR); -	/* Wait for EMAC Lite to finish with the MAC address update */ -	while ((in_be32 (emaclite.baseaddress + XEL_TSR_OFFSET) & -		XEL_TSR_PROG_MAC_ADDR) != 0) ; - -#ifdef XILINX_EMACLITE_TX_PING_PONG -	/* The same operation with PONG TX */ -	out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + XEL_BUFFER_OFFSET, 0); -	xemaclite_alignedwrite (bis->bi_enetaddr, emaclite.baseaddress + -		XEL_BUFFER_OFFSET, ENET_ADDR_LENGTH); -	out_be32 (emaclite.baseaddress + XEL_TPLR_OFFSET, ENET_ADDR_LENGTH); -	out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + XEL_BUFFER_OFFSET, -		XEL_TSR_PROG_MAC_ADDR); -	while ((in_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + -		 XEL_BUFFER_OFFSET) & XEL_TSR_PROG_MAC_ADDR) != 0) ; -#endif - -/* - * RX - RX_PING & RX_PONG initialization - */ -	/* Write out the value to flush the RX buffer */ -	out_be32 (emaclite.baseaddress + XEL_RSR_OFFSET, XEL_RSR_RECV_IE_MASK); -#ifdef XILINX_EMACLITE_RX_PING_PONG -	out_be32 (emaclite.baseaddress + XEL_RSR_OFFSET + XEL_BUFFER_OFFSET, -		XEL_RSR_RECV_IE_MASK); -#endif - -#ifdef DEBUG -	puts ("EmacLite Initialization complete\n"); -#endif -	return 0; -} - -int xemaclite_txbufferavailable (xemaclite * instanceptr) -{ -	u32 reg; -	u32 txpingbusy; -	u32 txpongbusy; -	/* -	 * Read the other buffer register -	 * and determine if the other buffer is available -	 */ -	reg = in_be32 (instanceptr->baseaddress + -			instanceptr->nexttxbuffertouse + 0); -	txpingbusy = ((reg & XEL_TSR_XMIT_BUSY_MASK) == -			XEL_TSR_XMIT_BUSY_MASK); - -	reg = in_be32 (instanceptr->baseaddress + -			(instanceptr->nexttxbuffertouse ^ XEL_TSR_OFFSET) + 0); -	txpongbusy = ((reg & XEL_TSR_XMIT_BUSY_MASK) == -			XEL_TSR_XMIT_BUSY_MASK); - -	return (!(txpingbusy && txpongbusy)); -} - -int eth_send (volatile void *ptr, int len) { - -	unsigned int reg; -	unsigned int baseaddress; - -	unsigned maxtry = 1000; - -	if (len > ENET_MAX_MTU) -		len = ENET_MAX_MTU; - -	while (!xemaclite_txbufferavailable (&emaclite) && maxtry) { -		udelay (10); -		maxtry--; -	} - -	if (!maxtry) { -		printf ("Error: Timeout waiting for ethernet TX buffer\n"); -		/* Restart PING TX */ -		out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET, 0); -#ifdef XILINX_EMACLITE_TX_PING_PONG -		out_be32 (emaclite.baseaddress + XEL_TSR_OFFSET + -		XEL_BUFFER_OFFSET, 0); -#endif -		return 0; -	} - -	/* Determine the expected TX buffer address */ -	baseaddress = (emaclite.baseaddress + emaclite.nexttxbuffertouse); - -	/* Determine if the expected buffer address is empty */ -	reg = in_be32 (baseaddress + XEL_TSR_OFFSET); -	if (((reg & XEL_TSR_XMIT_BUSY_MASK) == 0) -		&& ((in_be32 ((baseaddress) + XEL_TSR_OFFSET) -			& XEL_TSR_XMIT_ACTIVE_MASK) == 0)) { - -#ifdef XILINX_EMACLITE_TX_PING_PONG -		emaclite.nexttxbuffertouse ^= XEL_BUFFER_OFFSET; -#endif -#ifdef DEBUG -		printf ("Send packet from 0x%x\n", baseaddress); -#endif -		/* Write the frame to the buffer */ -		xemaclite_alignedwrite ((void *) ptr, baseaddress, len); -		out_be32 (baseaddress + XEL_TPLR_OFFSET,(len & -			(XEL_TPLR_LENGTH_MASK_HI | XEL_TPLR_LENGTH_MASK_LO))); -		reg = in_be32 (baseaddress + XEL_TSR_OFFSET); -		reg |= XEL_TSR_XMIT_BUSY_MASK; -		if ((reg & XEL_TSR_XMIT_IE_MASK) != 0) { -			reg |= XEL_TSR_XMIT_ACTIVE_MASK; -		} -		out_be32 (baseaddress + XEL_TSR_OFFSET, reg); -		return 1; -	} -#ifdef XILINX_EMACLITE_TX_PING_PONG -	/* Switch to second buffer */ -	baseaddress ^= XEL_BUFFER_OFFSET; -	/* Determine if the expected buffer address is empty */ -	reg = in_be32 (baseaddress + XEL_TSR_OFFSET); -	if (((reg & XEL_TSR_XMIT_BUSY_MASK) == 0) -		&& ((in_be32 ((baseaddress) + XEL_TSR_OFFSET) -			& XEL_TSR_XMIT_ACTIVE_MASK) == 0)) { -#ifdef DEBUG -		printf ("Send packet from 0x%x\n", baseaddress); -#endif -		/* Write the frame to the buffer */ -		xemaclite_alignedwrite ((void *) ptr, baseaddress, len); -		out_be32 (baseaddress + XEL_TPLR_OFFSET,(len & -			(XEL_TPLR_LENGTH_MASK_HI | XEL_TPLR_LENGTH_MASK_LO))); -		reg = in_be32 (baseaddress + XEL_TSR_OFFSET); -		reg |= XEL_TSR_XMIT_BUSY_MASK; -		if ((reg & XEL_TSR_XMIT_IE_MASK) != 0) { -			reg |= XEL_TSR_XMIT_ACTIVE_MASK; -		} -		out_be32 (baseaddress + XEL_TSR_OFFSET, reg); -		return 1; -	} -#endif -	puts ("Error while sending frame\n"); -	return 0; -} - -int eth_rx (void) -{ -	unsigned int length; -	unsigned int reg; -	unsigned int baseaddress; - -	baseaddress = emaclite.baseaddress + emaclite.nextrxbuffertouse; -	reg = in_be32 (baseaddress + XEL_RSR_OFFSET); -#ifdef DEBUG -	printf ("Testing data at address 0x%x\n", baseaddress); -#endif -	if ((reg & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) { -#ifdef XILINX_EMACLITE_RX_PING_PONG -		emaclite.nextrxbuffertouse ^= XEL_BUFFER_OFFSET; -#endif -	} else { -#ifndef XILINX_EMACLITE_RX_PING_PONG -#ifdef DEBUG -		printf ("No data was available - address 0x%x\n", baseaddress); -#endif -		return 0; -#else -		baseaddress ^= XEL_BUFFER_OFFSET; -		reg = in_be32 (baseaddress + XEL_RSR_OFFSET); -		if ((reg & XEL_RSR_RECV_DONE_MASK) != -					XEL_RSR_RECV_DONE_MASK) { -#ifdef DEBUG -			printf ("No data was available - address 0x%x\n", -					baseaddress); -#endif -			return 0; -		} -#endif -	} -	/* Get the length of the frame that arrived */ -	switch(((in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0xC)) & -			0xFFFF0000 ) >> 16) { -		case 0x806: -			length = 42 + 20; /* FIXME size of ARP */ -#ifdef DEBUG -			puts ("ARP Packet\n"); -#endif -			break; -		case 0x800: -			length = 14 + 14 + -			(((in_be32 (baseaddress + XEL_RXBUFF_OFFSET + 0x10)) & -			0xFFFF0000) >> 16); /* FIXME size of IP packet */ -#ifdef DEBUG -			puts("IP Packet\n"); -#endif -			break; -		default: -#ifdef DEBUG -			puts("Other Packet\n"); -#endif -			length = ENET_MAX_MTU; -			break; -	} - -	xemaclite_alignedread ((u32 *) (baseaddress + XEL_RXBUFF_OFFSET), -			etherrxbuff, length); - -	/* Acknowledge the frame */ -	reg = in_be32 (baseaddress + XEL_RSR_OFFSET); -	reg &= ~XEL_RSR_RECV_DONE_MASK; -	out_be32 (baseaddress + XEL_RSR_OFFSET, reg); - -#ifdef DEBUG -	printf ("Packet receive from 0x%x, length %dB\n", baseaddress, length); -#endif -	NetReceive ((uchar *) etherrxbuff, length); -	return 1; - -} -#endif |