diff options
Diffstat (limited to 'board/micronas/vct/smc_eeprom.c')
| -rw-r--r-- | board/micronas/vct/smc_eeprom.c | 394 |
1 files changed, 0 insertions, 394 deletions
diff --git a/board/micronas/vct/smc_eeprom.c b/board/micronas/vct/smc_eeprom.c deleted file mode 100644 index b5a552134e..0000000000 --- a/board/micronas/vct/smc_eeprom.c +++ /dev/null @@ -1,394 +0,0 @@ -/* - * (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering - * - * Copyright 2005, Seagate Technology LLC - * - * 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 version 2 as - * published by the Free Software Foundation. - * - * 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 - * - */ - -#undef DEBUG - -#include <common.h> -#include <command.h> -#include <config.h> -#include <net.h> - -#include "vct.h" - -#define SMSC9118_BASE CONFIG_DRIVER_SMC911X_BASE -#define BYTE_TEST (SMSC9118_BASE + 0x64) -#define GPIO_CFG (SMSC9118_BASE + 0x88) -#define MAC_CSR_CMD (SMSC9118_BASE + 0xA4) -#define MAC_CSR_CMD_CSR_BUSY (0x80000000) -#define MAC_CSR_CMD_RNW (0x40000000) -#define MAC_RD_CMD(reg) ((reg & 0x000000FF) | \ - (MAC_CSR_CMD_CSR_BUSY | MAC_CSR_CMD_RNW)) -#define MAC_WR_CMD(reg) ((reg & 0x000000FF) | \ - (MAC_CSR_CMD_CSR_BUSY)) -#define MAC_CSR_DATA (SMSC9118_BASE + 0xA8) -#define E2P_CMD (SMSC9118_BASE + 0xB0) -#define E2P_CMD_EPC_BUSY_ (0x80000000UL) /* Self Clearing */ -#define E2P_CMD_EPC_CMD_ (0x70000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_READ_ (0x00000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_EWDS_ (0x10000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_EWEN_ (0x20000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_WRITE_ (0x30000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_WRAL_ (0x40000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_ERASE_ (0x50000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_ERAL_ (0x60000000UL) /* R/W */ -#define E2P_CMD_EPC_CMD_RELOAD_ (0x70000000UL) /* R/W */ -#define E2P_CMD_EPC_TIMEOUT_ (0x00000200UL) /* R */ -#define E2P_CMD_MAC_ADDR_LOADED_ (0x00000100UL) /* RO */ -#define E2P_CMD_EPC_ADDR_ (0x000000FFUL) /* R/W */ -#define E2P_DATA (SMSC9118_BASE + 0xB4) - -#define MAC_ADDRH (0x2) -#define MAC_ADDRL (0x3) - -#define MAC_TIMEOUT 200 - -#define HIBYTE(word) ((u8)(((u16)(word)) >> 8)) -#define LOBYTE(word) ((u8)(((u16)(word)) & 0x00FFU)) -#define HIWORD(dword) ((u16)(((u32)(dword)) >> 16)) -#define LOWORD(dword) ((u16)(((u32)(dword)) & 0x0000FFFFUL)) - -static int mac_busy(int req_to) -{ - int timeout = req_to; - - while (timeout--) { - if (!(smc911x_reg_read(MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY)) - goto done; - } - return 1; /* Timeout */ - -done: - return 0; /* No timeout */ -} - -static ulong get_mac_reg(int reg) -{ - ulong reg_val = 0xffffffff; - - if (smc911x_reg_read(MAC_CSR_CMD) & MAC_CSR_CMD_CSR_BUSY) { - printf("get_mac_reg: previous command not complete\n"); - goto done; - } - - smc911x_reg_write(MAC_CSR_CMD, MAC_RD_CMD(reg)); - udelay(10000); - - if (mac_busy(MAC_TIMEOUT) == 1) { - printf("get_mac_reg: timeout waiting for response from MAC\n"); - goto done; - } - - reg_val = smc911x_reg_read(MAC_CSR_DATA); - -done: - return (reg_val); -} - -static ulong eeprom_enable_access(void) -{ - ulong gpio; - - gpio = smc911x_reg_read(GPIO_CFG); - debug("%s: gpio= 0x%08lx ---> 0x%08lx\n", __func__, gpio, - (gpio & 0xFF0FFFFFUL)); - - smc911x_reg_write(GPIO_CFG, (gpio & 0xFF0FFFFFUL)); - return gpio; -} - -static void eeprom_disable_access(ulong gpio) -{ - debug("%s: gpio= 0x%08lx\n", __func__, gpio); - smc911x_reg_write(GPIO_CFG, gpio); -} - -static int eeprom_is_mac_address_loaded(void) -{ - int ret; - - ret = smc911x_reg_read(MAC_CSR_CMD) & E2P_CMD_MAC_ADDR_LOADED_; - debug("%s: ret = %x\n", __func__, ret); - - return ret; -} - -static int eeprom_read_location(unchar address, u8 *data) -{ - ulong timeout = 100000; - ulong temp = 0; - - if ((temp = smc911x_reg_read(E2P_CMD)) & E2P_CMD_EPC_BUSY_) { - printf("%s: Busy at start, E2P_CMD=0x%08lX\n", __func__, temp); - return 0; - } - - smc911x_reg_write(E2P_CMD, - (E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_ | - ((ulong) address))); - - while ((timeout > 0) && (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_)) { - udelay(10); - timeout--; - } - - if (timeout == 0) { - printf("Timeout\n"); - return 0; - } - (*data) = (unchar) (smc911x_reg_read(E2P_DATA)); - debug("%s: ret = %x\n", __func__, (*data)); - - return 1; -} - -static int eeprom_enable_erase_and_write(void) -{ - ulong timeout = 100000; - - if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_) { - printf("%s: Busy at start\n", __func__); - return 0; - } - smc911x_reg_write(E2P_CMD, (E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_)); - - while ((timeout > 0) && (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_)) { - udelay(10); - timeout--; - } - - if (timeout == 0) { - printf("Timeout[1]\n"); - return 0; - } - - return 1; -} - -static int eeprom_disable_erase_and_write(void) -{ - ulong timeout = 100000; - - if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_) { - printf("%s: Busy at start\n", __func__); - return 0; - } - smc911x_reg_write(E2P_CMD, (E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWDS_)); - - while ((timeout > 0) && (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_)) { - udelay(10); - timeout--; - } - - if (timeout == 0) { - printf("Timeout[2]\n"); - return 0; - } - - return 1; -} - -static int eeprom_write_location(unchar address, unchar data) -{ - ulong timeout = 100000; - - debug("%s: address: %x data = %x\n", __func__, address, data); - - if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_) { - printf("%s: Busy at start\n", __func__); - return 0; - } - - smc911x_reg_write(E2P_DATA, ((ulong) data)); - smc911x_reg_write(E2P_CMD, - (E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_ | - ((ulong) address))); - - while ((timeout > 0) && (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_)) { - udelay(10); - timeout--; - } - - if (timeout == 0) { - printf("Timeout[3]\n"); - return 0; - } - - return 1; -} - -static int eeprom_erase_all(void) -{ - ulong timeout = 100000; - - if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_) { - printf("%s: Busy at start\n", __func__); - return 0; - } - - smc911x_reg_write(E2P_CMD, (E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_ERAL_)); - - while ((timeout > 0) && (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_)) { - udelay(10); - timeout--; - } - - if (timeout == 0) { - printf("Timeout[4]\n"); - return 0; - } - - return 1; -} - -static int eeprom_reload(void) -{ - ulong timeout = 100000; - - if (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_) { - printf("%s: Busy at start\n", __func__); - return -1; - } - smc911x_reg_write(E2P_CMD, - (E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_RELOAD_)); - - while ((timeout > 0) && (smc911x_reg_read(E2P_CMD) & E2P_CMD_EPC_BUSY_)) { - udelay(10); - timeout--; - } - - if (timeout == 0) - return 0; - - return 1; -} - -static int eeprom_save_mac_address(ulong dwHi16, ulong dwLo32) -{ - int result = 0; - - debug("%s: dwHI: 0x%08lx dwLO: %08lx, \n", __func__, dwHi16, dwLo32); - - if (!eeprom_enable_erase_and_write()) - goto DONE; - if (!eeprom_erase_all()) - goto DONE; - if (!eeprom_write_location(0, 0xA5)) - goto DONE; - if (!eeprom_write_location(1, LOBYTE(LOWORD(dwLo32)))) - goto DONE; - if (!eeprom_write_location(2, HIBYTE(LOWORD(dwLo32)))) - goto DONE; - if (!eeprom_write_location(3, LOBYTE(HIWORD(dwLo32)))) - goto DONE; - if (!eeprom_write_location(4, HIBYTE(HIWORD(dwLo32)))) - goto DONE; - if (!eeprom_write_location(5, LOBYTE(LOWORD(dwHi16)))) - goto DONE; - if (!eeprom_write_location(6, HIBYTE(LOWORD(dwHi16)))) - goto DONE; - if (!eeprom_disable_erase_and_write()) - goto DONE; - - result = 1; - -DONE: - return result; -} - -static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - unchar data = 0, index = 0; - ulong gpio_old_val; - - gpio_old_val = eeprom_enable_access(); - - printf("EEPROM content: \n"); - for (index = 0; index < 8; index++) { - if (eeprom_read_location(index, &data)) - printf("%02x ", data); - else - printf("FAILED"); - } - - eeprom_disable_access(gpio_old_val); - printf("\n"); - - return 0; -} - -static int do_eeprom_erase_all(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - eeprom_erase_all(); - - return 0; -} - -static int do_eeprom_save_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - ulong hi16, lo32; - unchar ethaddr[6], i; - ulong gpio; - char *tmp, *end; - - tmp = argv[1]; - for (i = 0; i < 6; i++) { - ethaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0; - if (tmp) - tmp = (*end) ? end + 1 : end; - } - - hi16 = (ethaddr[5] << 8) | (ethaddr[4]); - lo32 = (ethaddr[3] << 24) | (ethaddr[2] << 16) | - (ethaddr[1] << 8) | (ethaddr[0]); - - gpio = eeprom_enable_access(); - - eeprom_save_mac_address(hi16, lo32); - - eeprom_reload(); - - /* Check new values */ - if (eeprom_is_mac_address_loaded()) { - ulong mac_hi16, mac_lo32; - - mac_hi16 = get_mac_reg(MAC_ADDRH); - mac_lo32 = get_mac_reg(MAC_ADDRL); - printf("New MAC address: %lx, %lx\n", mac_hi16, mac_lo32); - } else { - printf("Address is not reloaded \n"); - } - eeprom_disable_access(gpio); - - return 0; -} - -U_BOOT_CMD(smcee, 1, 0, do_eeprom_erase_all, - "smcee - Erase content of SMC EEPROM",); - -U_BOOT_CMD(smced, 1, 0, do_eeprom_dump, - "smced - Dump content of SMC EEPROM",); - -U_BOOT_CMD(smcew, 2, 0, do_eeprom_save_mac, - "smcew - Write MAC address to SMC EEPROM\n", - "aa:bb:cc:dd:ee:ff new mac address"); |