--- /dev/null
+/*
+ * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#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"
+);
Code Review / kvmfornfv.git / blobdiff