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u-boot/board/renesas/sh7785lcr/rtl8169_mac.c
Wolfgang Denk 47e26b1bf9 cmd_usage(): simplify return code handling 
Lots of code use this construct:

	cmd_usage(cmdtp);
	return 1;

Change cmd_usage() let it return 1 - then we can replace all these
ocurrances by

	return cmd_usage(cmdtp);

This fixes a few places with incorrect return code handling, too.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-07-24 20:43:57 +02:00

344 lines
6.7 KiB
C
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/*
* 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 * const argv[])
{
int i;
unsigned char mac[6];
char *s, *e;
if (argc != 2)
return cmd_usage(cmdtp);
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,
"write MAC address for RTL8110SCL",
"\n"
"setmac <mac address> - write MAC address for RTL8110SCL"
);
int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc != 1)
return cmd_usage(cmdtp);
mac_read();
return 0;
}
U_BOOT_CMD(
printmac, 1, 1, do_print_mac,
"print MAC address for RTL8110",
"\n"
" - print MAC address for RTL8110"
);
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