diff options
Diffstat (limited to 'board/renesas/sh7785lcr/rtl8169_mac.c')
| -rw-r--r-- | board/renesas/sh7785lcr/rtl8169_mac.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/board/renesas/sh7785lcr/rtl8169_mac.c b/board/renesas/sh7785lcr/rtl8169_mac.c new file mode 100644 index 0000000..bf0ba14 --- /dev/null +++ b/board/renesas/sh7785lcr/rtl8169_mac.c @@ -0,0 +1,348 @@ +/* + * 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" +); |