189 lines
5.0 KiB
C
189 lines
5.0 KiB
C
/*
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* Based on Linux driver:
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* Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
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* Copyright (C) 2006 FON Technology, SL.
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* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
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* Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
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* Ported to Barebox:
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* Copyright (C) 2013 Oleksij Rempel <linux@rempel-privat.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <common.h>
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#include <io.h>
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#include <mach/ar2312_regs.h>
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#include <mach/ar231x_platform.h>
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#include <linux/stddef.h>
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#include <net.h>
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#define HDR_SIZE 6
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#define TAB_1 "\t"
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#define TAB_2 "\t\t"
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extern struct ar231x_board_data ar231x_board;
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static void
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ar231x_print_mac(unsigned char *mac)
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{
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int i;
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for (i = 0; i < 5; i++)
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printf("%02x:", mac[i]);
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printf("%02x\n", mac[5]);
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}
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#ifdef DEBUG_BOARD
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static void
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ar231x_print_board_config(struct ar231x_board_config *config)
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{
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printf("board config:\n");
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printf(TAB_1 "chsum:" TAB_2 "%04x\n", config->cksum);
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printf(TAB_1 "rev:" TAB_2 "%04x\n", config->rev);
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printf(TAB_1 "name:" TAB_2 "%s\n", config->board_name);
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printf(TAB_1 "maj:" TAB_2 "%04x\n", config->major);
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printf(TAB_1 "min:" TAB_2 "%04x\n", config->minor);
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printf(TAB_1 "board flags:" TAB_1 "%08x\n", config->flags);
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if (config->flags & BD_ENET0)
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printf(TAB_2 "ENET0 is stuffed\n");
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if (config->flags & BD_ENET1)
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printf(TAB_2 "ENET1 is stuffed\n");
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if (config->flags & BD_UART1)
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printf(TAB_2 "UART1 is stuffed\n");
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if (config->flags & BD_UART0)
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printf(TAB_2 "UART0 is stuffed (dma)\n");
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if (config->flags & BD_RSTFACTORY)
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printf(TAB_2 "Reset factory defaults stuffed\n");
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if (config->flags & BD_SYSLED)
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printf(TAB_2 "System LED stuffed\n");
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if (config->flags & BD_EXTUARTCLK)
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printf(TAB_2 "External UART clock\n");
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if (config->flags & BD_CPUFREQ)
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printf(TAB_2 "cpu freq is valid in nvram\n");
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if (config->flags & BD_SYSFREQ)
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printf(TAB_2 "sys freq is set in nvram\n");
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if (config->flags & BD_WLAN0)
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printf(TAB_2 "Enable WLAN0\n");
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if (config->flags & BD_MEMCAP)
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printf(TAB_2 "CAP SDRAM @ memCap for testing\n");
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if (config->flags & BD_DISWATCHDOG)
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printf(TAB_2 "disable system watchdog\n");
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if (config->flags & BD_WLAN1)
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printf(TAB_2 "Enable WLAN1 (ar5212)\n");
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if (config->flags & BD_ISCASPER)
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printf(TAB_2 "FLAG for AR2312\n");
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if (config->flags & BD_WLAN0_2G_EN)
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printf(TAB_2 "FLAG for radio0_2G\n");
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if (config->flags & BD_WLAN0_5G_EN)
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printf(TAB_2 "FLAG for radio0_5G\n");
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if (config->flags & BD_WLAN1_2G_EN)
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printf(TAB_2 "FLAG for radio1_2G\n");
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if (config->flags & BD_WLAN1_5G_EN)
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printf(TAB_2 "FLAG for radio1_5G\n");
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printf(TAB_1 "ResetConf GPIO pin:" TAB_1 "%04x\n",
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config->reset_config_gpio);
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printf(TAB_1 "Sys LED GPIO pin:" TAB_1 "%04x\n", config->sys_led_gpio);
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printf(TAB_1 "CPU Freq:" TAB_2 "%u\n", config->cpu_freq);
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printf(TAB_1 "Sys Freq:" TAB_2 "%u\n", config->sys_freq);
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printf(TAB_1 "Calculated Freq:" TAB_1 "%u\n", config->cnt_freq);
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printf(TAB_1 "wlan0 mac:" TAB_2);
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ar231x_print_mac(config->wlan0_mac);
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printf(TAB_1 "wlan1 mac:" TAB_2);
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ar231x_print_mac(config->wlan1_mac);
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printf(TAB_1 "eth0 mac:" TAB_2);
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ar231x_print_mac(config->enet0_mac);
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printf(TAB_1 "eth1 mac:" TAB_2);
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ar231x_print_mac(config->enet1_mac);
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printf(TAB_1 "Pseudo PCIID:" TAB_2 "%04x\n", config->pci_id);
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printf(TAB_1 "Mem capacity:" TAB_2 "%u\n", config->mem_cap);
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}
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#endif
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static u16
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ar231x_cksum16(u8 *data, int size)
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{
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int i;
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u16 sum = 0;
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for (i = 0; i < size; i++)
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sum += data[i];
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return sum;
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}
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static void
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ar231x_check_mac(u8 *addr)
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{
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if (!is_valid_ether_addr(addr)) {
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pr_warn("config: no valid mac was found. "
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"Generating random mac: ");
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random_ether_addr(addr);
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ar231x_print_mac(addr);
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}
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}
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static u8 *
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ar231x_find_board_config(u8 *flash_limit)
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{
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u8 *addr;
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int found = 0;
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for (addr = flash_limit - 0x1000;
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addr >= flash_limit - 0x30000;
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addr -= 0x1000) {
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if (*((u32 *)addr) == AR231X_BD_MAGIC) {
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found = 1;
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pr_debug("config at %x\n", addr);
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break;
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}
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}
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if (!found)
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addr = NULL;
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return addr;
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}
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void
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ar231x_find_config(u8 *flash_limit)
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{
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struct ar231x_board_config *config;
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u8 *bcfg, bsize;
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u8 brocken;
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bcfg = ar231x_find_board_config(flash_limit);
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bsize = sizeof(struct ar231x_board_config);
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config = xzalloc(bsize);
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ar231x_board.config = config;
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if (bcfg) {
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u16 cksum;
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/* Copy the board and radio data to RAM.
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* If flash will go to CFI mode, we won't
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* be able to read to from mapped memory area */
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memcpy(config, bcfg, bsize);
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cksum = 0xca + ar231x_cksum16((unsigned char *)config + HDR_SIZE,
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sizeof(struct ar231x_board_config) - HDR_SIZE);
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if (cksum != config->cksum) {
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pr_err("config: checksum is invalid: %04x != %04x\n",
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cksum, config->cksum);
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brocken = 1;
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}
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/* ar231x_print_board_config(config); */
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}
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/* We do not care about wlans here */
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ar231x_check_mac(config->enet0_mac);
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ar231x_check_mac(config->enet1_mac);
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}
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