board/sh7785lcr/rtl8169_mac.c - platform/external/u-boot - Gitiles

 /*
  * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
  *
  * 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 "rtl8169.h"

 static unsigned char *PCI_MEMR;

 static void mac_delay(unsigned int cnt)
 {
 	udelay(cnt);
 }

 static void mac_pci_setup(void)
 {
 	unsigned long pci_data;

 	PCI_PAR = 0x00000010;
 	PCI_PDR = 0x00001000;
 	PCI_PAR = 0x00000004;
 	pci_data = PCI_PDR;
 	PCI_PDR = pci_data | 0x00000007;
 	PCI_PAR = 0x00000010;

 	PCI_MEMR = (unsigned char *)((PCI_PDR | 0xFE240050) & 0xFFFFFFF0);
 }

 static void EECS(int level)
 {
 	unsigned char data = *PCI_MEMR;

 	if (level)
 		*PCI_MEMR = data | 0x08;
 	else
 		*PCI_MEMR = data & 0xf7;
 }

 static void EECLK(int level)
 {
 	unsigned char data = *PCI_MEMR;

 	if (level)
 		*PCI_MEMR = data | 0x04;
 	else
 		*PCI_MEMR = data & 0xfb;
 }

 static void EEDI(int level)
 {
 	unsigned char data = *PCI_MEMR;

 	if (level)
 		*PCI_MEMR = data | 0x02;
 	else
 		*PCI_MEMR = data & 0xfd;
 }

 static inline void sh7785lcr_bitset(unsigned short bit)
 {
 	if (bit)
 		EEDI(HIGH);
 	else
 		EEDI(LOW);

 	EECLK(LOW);
 	mac_delay(TIME1);
 	EECLK(HIGH);
 	mac_delay(TIME1);
 	EEDI(LOW);
 }

 static inline unsigned char sh7785lcr_bitget(void)
 {
 	unsigned char bit;

 	EECLK(LOW);
 	mac_delay(TIME1);
 	bit = *PCI_MEMR & 0x01;
 	EECLK(HIGH);
 	mac_delay(TIME1);

 	return bit;
 }

 static inline void sh7785lcr_setcmd(unsigned char command)
 {
 	sh7785lcr_bitset(BIT_DUMMY);
 	switch (command) {
 	case MAC_EEP_READ:
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(0);
 		break;
 	case MAC_EEP_WRITE:
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(0);
 		sh7785lcr_bitset(1);
 		break;
 	case MAC_EEP_ERACE:
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(1);
 		break;
 	case MAC_EEP_EWEN:
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(0);
 		sh7785lcr_bitset(0);
 		break;
 	case MAC_EEP_EWDS:
 		sh7785lcr_bitset(1);
 		sh7785lcr_bitset(0);
 		sh7785lcr_bitset(0);
 		break;
 	default:
 		break;
 	}
 }

 static inline unsigned short sh7785lcr_getdt(void)
 {
 	unsigned short data = 0;
 	int i;

 	sh7785lcr_bitget();			/* DUMMY */
 	for (i = 0 ; i < 16 ; i++) {
 		data <<= 1;
 		data |= sh7785lcr_bitget();
 	}
 	return data;
 }

 static inline void sh7785lcr_setadd(unsigned short address)
 {
 	sh7785lcr_bitset(address & 0x0020);	/* A5 */
 	sh7785lcr_bitset(address & 0x0010);	/* A4 */
 	sh7785lcr_bitset(address & 0x0008);	/* A3 */
 	sh7785lcr_bitset(address & 0x0004);	/* A2 */
 	sh7785lcr_bitset(address & 0x0002);	/* A1 */
 	sh7785lcr_bitset(address & 0x0001);	/* A0 */
 }

 static inline void sh7785lcr_setdata(unsigned short data)
 {
 	sh7785lcr_bitset(data & 0x8000);
 	sh7785lcr_bitset(data & 0x4000);
 	sh7785lcr_bitset(data & 0x2000);
 	sh7785lcr_bitset(data & 0x1000);
 	sh7785lcr_bitset(data & 0x0800);
 	sh7785lcr_bitset(data & 0x0400);
 	sh7785lcr_bitset(data & 0x0200);
 	sh7785lcr_bitset(data & 0x0100);
 	sh7785lcr_bitset(data & 0x0080);
 	sh7785lcr_bitset(data & 0x0040);
 	sh7785lcr_bitset(data & 0x0020);
 	sh7785lcr_bitset(data & 0x0010);
 	sh7785lcr_bitset(data & 0x0008);
 	sh7785lcr_bitset(data & 0x0004);
 	sh7785lcr_bitset(data & 0x0002);
 	sh7785lcr_bitset(data & 0x0001);
 }

 static void sh7785lcr_datawrite(const unsigned short *data, unsigned short address,
 			 unsigned int count)
 {
 	unsigned int i;

 	for (i = 0; i < count; i++) {
 		EECS(HIGH);
 		EEDI(LOW);
 		mac_delay(TIME1);

 		sh7785lcr_setcmd(MAC_EEP_WRITE);
 		sh7785lcr_setadd(address++);
 		sh7785lcr_setdata(*(data + i));

 		EECLK(LOW);
 		EEDI(LOW);
 		EECS(LOW);
 		mac_delay(TIME2);
 	}
 }

 static void sh7785lcr_macerase(void)
 {
 	unsigned int i;
 	unsigned short pci_address = 7;

 	for (i = 0; i < 3; i++) {
 		EECS(HIGH);
 		EEDI(LOW);
 		mac_delay(TIME1);
 		sh7785lcr_setcmd(MAC_EEP_ERACE);
 		sh7785lcr_setadd(pci_address++);
 		mac_delay(TIME1);
 		EECLK(LOW);
 		EEDI(LOW);
 		EECS(LOW);
 	}

 	mac_delay(TIME2);

 	printf("\n\nErace End\n");
 	for (i = 0; i < 10; i++)
 		mac_delay(TIME2);
 }

 static void sh7785lcr_macwrite(unsigned short *data)
 {
 	sh7785lcr_macerase();

 	sh7785lcr_datawrite(EEPROM_W_Data_8169_A, 0x0000, 7);
 	sh7785lcr_datawrite(data, PCI_EEP_ADDRESS, PCI_MAC_ADDRESS_SIZE);
 	sh7785lcr_datawrite(EEPROM_W_Data_8169_B, 0x000a, 54);
 }

 void sh7785lcr_macdtrd(unsigned char *buf, unsigned short address, unsigned int count)
 {
 	unsigned int i;
 	unsigned short wk;

 	for (i = 0 ; i < count; i++) {
 		EECS(HIGH);
 		EEDI(LOW);
 		mac_delay(TIME1);
 		sh7785lcr_setcmd(MAC_EEP_READ);
 		sh7785lcr_setadd(address++);
 		wk = sh7785lcr_getdt();

 		*buf++ = (unsigned char)(wk & 0xff);
 		*buf++ = (unsigned char)((wk >> 8) & 0xff);
 		EECLK(LOW);
 		EEDI(LOW);
 		EECS(LOW);
 	}
 }

 static void sh7785lcr_macadrd(unsigned char *buf)
 {
 	*PCI_MEMR = PCI_PROG;

 	sh7785lcr_macdtrd(buf, PCI_EEP_ADDRESS, PCI_MAC_ADDRESS_SIZE);
 }

 static void sh7785lcr_eepewen(void)
 {
 	*PCI_MEMR = PCI_PROG;
 	mac_delay(TIME1);
 	EECS(LOW);
 	EECLK(LOW);
 	EEDI(LOW);
 	EECS(HIGH);
 	mac_delay(TIME1);

 	sh7785lcr_setcmd(MAC_EEP_EWEN);
 	sh7785lcr_bitset(1);
 	sh7785lcr_bitset(1);
 	sh7785lcr_bitset(BIT_DUMMY);
 	sh7785lcr_bitset(BIT_DUMMY);
 	sh7785lcr_bitset(BIT_DUMMY);
 	sh7785lcr_bitset(BIT_DUMMY);

 	EECLK(LOW);
 	EEDI(LOW);
 	EECS(LOW);
 	mac_delay(TIME1);
 }

 void mac_write(unsigned short *data)
 {
 	mac_pci_setup();
 	sh7785lcr_eepewen();
 	sh7785lcr_macwrite(data);
 }

 void mac_read(void)
 {
 	unsigned char data[6];

 	mac_pci_setup();
 	sh7785lcr_macadrd(data);
 	printf("Mac = %02x:%02x:%02x:%02x:%02x:%02x\n",
 		data[0], data[1], data[2], data[3], data[4], data[5]);
 }

 int do_set_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	int i;
 	unsigned char mac[6];
 	char *s, *e;

 	if (argc != 2) {
 		printf("Usage:\n%s\n", cmdtp->usage);
 		return 1;
 	}

 	s = argv[1];

 	for (i = 0; i < 6; i++) {
 		mac[i] = s ? simple_strtoul(s, &e, 16) : 0;
 		if (s)
 			s = (*e) ? e + 1 : e;
 	}
 	mac_write((unsigned short *)mac);

 	return 0;
 }

 U_BOOT_CMD(
 	setmac,	2,	1,	do_set_mac,
 	"setmac - write MAC address for RTL8110SCL\n",
 	"\n"
 	"setmac <mac address> - write MAC address for RTL8110SCL\n"
 );

 int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	if (argc != 1) {
 		printf("Usage:\n%s\n", cmdtp->usage);
 		return 1;
 	}

 	mac_read();

 	return 0;
 }

 U_BOOT_CMD(
 	printmac,	1,	1,	do_print_mac,
 	"printmac - print MAC address for RTL8110\n",
 	"\n"
 	"    - print MAC address for RTL8110\n"
 );
	/*
	* Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
	*
	* 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 "rtl8169.h"

	static unsigned char *PCI_MEMR;

	static void mac_delay(unsigned int cnt)
	{
	udelay(cnt);
	}

	static void mac_pci_setup(void)
	{
	unsigned long pci_data;

	PCI_PAR = 0x00000010;
	PCI_PDR = 0x00001000;
	PCI_PAR = 0x00000004;
	pci_data = PCI_PDR;
	PCI_PDR = pci_data \| 0x00000007;
	PCI_PAR = 0x00000010;

	PCI_MEMR = (unsigned char *)((PCI_PDR \| 0xFE240050) & 0xFFFFFFF0);
	}

	static void EECS(int level)
	{
	unsigned char data = *PCI_MEMR;

	if (level)
	*PCI_MEMR = data \| 0x08;
	else
	*PCI_MEMR = data & 0xf7;
	}

	static void EECLK(int level)
	{
	unsigned char data = *PCI_MEMR;

	if (level)
	*PCI_MEMR = data \| 0x04;
	else
	*PCI_MEMR = data & 0xfb;
	}

	static void EEDI(int level)
	{
	unsigned char data = *PCI_MEMR;

	if (level)
	*PCI_MEMR = data \| 0x02;
	else
	*PCI_MEMR = data & 0xfd;
	}

	static inline void sh7785lcr_bitset(unsigned short bit)
	{
	if (bit)
	EEDI(HIGH);
	else
	EEDI(LOW);

	EECLK(LOW);
	mac_delay(TIME1);
	EECLK(HIGH);
	mac_delay(TIME1);
	EEDI(LOW);
	}

	static inline unsigned char sh7785lcr_bitget(void)
	{
	unsigned char bit;

	EECLK(LOW);
	mac_delay(TIME1);
	bit = *PCI_MEMR & 0x01;
	EECLK(HIGH);
	mac_delay(TIME1);

	return bit;
	}

	static inline void sh7785lcr_setcmd(unsigned char command)
	{
	sh7785lcr_bitset(BIT_DUMMY);
	switch (command) {
	case MAC_EEP_READ:
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(0);
	break;
	case MAC_EEP_WRITE:
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(0);
	sh7785lcr_bitset(1);
	break;
	case MAC_EEP_ERACE:
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(1);
	break;
	case MAC_EEP_EWEN:
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(0);
	sh7785lcr_bitset(0);
	break;
	case MAC_EEP_EWDS:
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(0);
	sh7785lcr_bitset(0);
	break;
	default:
	break;
	}
	}

	static inline unsigned short sh7785lcr_getdt(void)
	{
	unsigned short data = 0;
	int i;

	sh7785lcr_bitget(); /* DUMMY */
	for (i = 0 ; i < 16 ; i++) {
	data <<= 1;
	data \|= sh7785lcr_bitget();
	}
	return data;
	}

	static inline void sh7785lcr_setadd(unsigned short address)
	{
	sh7785lcr_bitset(address & 0x0020); /* A5 */
	sh7785lcr_bitset(address & 0x0010); /* A4 */
	sh7785lcr_bitset(address & 0x0008); /* A3 */
	sh7785lcr_bitset(address & 0x0004); /* A2 */
	sh7785lcr_bitset(address & 0x0002); /* A1 */
	sh7785lcr_bitset(address & 0x0001); /* A0 */
	}

	static inline void sh7785lcr_setdata(unsigned short data)
	{
	sh7785lcr_bitset(data & 0x8000);
	sh7785lcr_bitset(data & 0x4000);
	sh7785lcr_bitset(data & 0x2000);
	sh7785lcr_bitset(data & 0x1000);
	sh7785lcr_bitset(data & 0x0800);
	sh7785lcr_bitset(data & 0x0400);
	sh7785lcr_bitset(data & 0x0200);
	sh7785lcr_bitset(data & 0x0100);
	sh7785lcr_bitset(data & 0x0080);
	sh7785lcr_bitset(data & 0x0040);
	sh7785lcr_bitset(data & 0x0020);
	sh7785lcr_bitset(data & 0x0010);
	sh7785lcr_bitset(data & 0x0008);
	sh7785lcr_bitset(data & 0x0004);
	sh7785lcr_bitset(data & 0x0002);
	sh7785lcr_bitset(data & 0x0001);
	}

	static void sh7785lcr_datawrite(const unsigned short *data, unsigned short address,
	unsigned int count)
	{
	unsigned int i;

	for (i = 0; i < count; i++) {
	EECS(HIGH);
	EEDI(LOW);
	mac_delay(TIME1);

	sh7785lcr_setcmd(MAC_EEP_WRITE);
	sh7785lcr_setadd(address++);
	sh7785lcr_setdata(*(data + i));

	EECLK(LOW);
	EEDI(LOW);
	EECS(LOW);
	mac_delay(TIME2);
	}
	}

	static void sh7785lcr_macerase(void)
	{
	unsigned int i;
	unsigned short pci_address = 7;

	for (i = 0; i < 3; i++) {
	EECS(HIGH);
	EEDI(LOW);
	mac_delay(TIME1);
	sh7785lcr_setcmd(MAC_EEP_ERACE);
	sh7785lcr_setadd(pci_address++);
	mac_delay(TIME1);
	EECLK(LOW);
	EEDI(LOW);
	EECS(LOW);
	}

	mac_delay(TIME2);

	printf("\n\nErace End\n");
	for (i = 0; i < 10; i++)
	mac_delay(TIME2);
	}

	static void sh7785lcr_macwrite(unsigned short *data)
	{
	sh7785lcr_macerase();

	sh7785lcr_datawrite(EEPROM_W_Data_8169_A, 0x0000, 7);
	sh7785lcr_datawrite(data, PCI_EEP_ADDRESS, PCI_MAC_ADDRESS_SIZE);
	sh7785lcr_datawrite(EEPROM_W_Data_8169_B, 0x000a, 54);
	}

	void sh7785lcr_macdtrd(unsigned char *buf, unsigned short address, unsigned int count)
	{
	unsigned int i;
	unsigned short wk;

	for (i = 0 ; i < count; i++) {
	EECS(HIGH);
	EEDI(LOW);
	mac_delay(TIME1);
	sh7785lcr_setcmd(MAC_EEP_READ);
	sh7785lcr_setadd(address++);
	wk = sh7785lcr_getdt();

	*buf++ = (unsigned char)(wk & 0xff);
	*buf++ = (unsigned char)((wk >> 8) & 0xff);
	EECLK(LOW);
	EEDI(LOW);
	EECS(LOW);
	}
	}

	static void sh7785lcr_macadrd(unsigned char *buf)
	{
	*PCI_MEMR = PCI_PROG;

	sh7785lcr_macdtrd(buf, PCI_EEP_ADDRESS, PCI_MAC_ADDRESS_SIZE);
	}

	static void sh7785lcr_eepewen(void)
	{
	*PCI_MEMR = PCI_PROG;
	mac_delay(TIME1);
	EECS(LOW);
	EECLK(LOW);
	EEDI(LOW);
	EECS(HIGH);
	mac_delay(TIME1);

	sh7785lcr_setcmd(MAC_EEP_EWEN);
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(1);
	sh7785lcr_bitset(BIT_DUMMY);
	sh7785lcr_bitset(BIT_DUMMY);
	sh7785lcr_bitset(BIT_DUMMY);
	sh7785lcr_bitset(BIT_DUMMY);

	EECLK(LOW);
	EEDI(LOW);
	EECS(LOW);
	mac_delay(TIME1);
	}

	void mac_write(unsigned short *data)
	{
	mac_pci_setup();
	sh7785lcr_eepewen();
	sh7785lcr_macwrite(data);
	}

	void mac_read(void)
	{
	unsigned char data[6];

	mac_pci_setup();
	sh7785lcr_macadrd(data);
	printf("Mac = %02x:%02x:%02x:%02x:%02x:%02x\n",
	data[0], data[1], data[2], data[3], data[4], data[5]);
	}

	int do_set_mac(cmd_tbl_t cmdtp, int flag, int argc, char argv[])
	{
	int i;
	unsigned char mac[6];
	char s, e;

	if (argc != 2) {
	printf("Usage:\n%s\n", cmdtp->usage);
	return 1;
	}

	s = argv[1];

	for (i = 0; i < 6; i++) {
	mac[i] = s ? simple_strtoul(s, &e, 16) : 0;
	if (s)
	s = (*e) ? e + 1 : e;
	}
	mac_write((unsigned short *)mac);

	return 0;
	}

	U_BOOT_CMD(
	setmac, 2, 1, do_set_mac,
	"setmac - write MAC address for RTL8110SCL\n",
	"\n"
	"setmac <mac address> - write MAC address for RTL8110SCL\n"
	);

	int do_print_mac(cmd_tbl_t cmdtp, int flag, int argc, char argv[])
	{
	if (argc != 1) {
	printf("Usage:\n%s\n", cmdtp->usage);
	return 1;
	}

	mac_read();

	return 0;
	}

	U_BOOT_CMD(
	printmac, 1, 1, do_print_mac,
	"printmac - print MAC address for RTL8110\n",
	"\n"
	" - print MAC address for RTL8110\n"
	);