/*
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* Copyright (c) 2015 South Silicon Valley Microelectronics Inc.
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* Copyright (c) 2015 iComm Corporation
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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 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/etherdevice.h>
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#include <ssv6200.h>
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#include "efuse.h"
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mm_segment_t oldfs;
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struct file *openFile(char *path,int flag,int mode)
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{
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struct file *fp=NULL;
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fp=filp_open(path, flag, 0);
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if(IS_ERR(fp))
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return NULL;
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else
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return fp;
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}
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int readFile(struct file *fp,char *buf,int readlen)
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{
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if (fp->f_op && fp->f_op->read)
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return fp->f_op->read(fp,buf,readlen, &fp->f_pos);
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else
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return -1;
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}
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int closeFile(struct file *fp)
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{
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filp_close(fp,NULL);
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return 0;
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}
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void initKernelEnv(void)
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{
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oldfs = get_fs();
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set_fs(KERNEL_DS);
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}
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void parseMac(char* mac, u_int8_t addr[])
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{
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long b;
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int i;
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for (i = 0; i < 6; i++)
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{
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b = simple_strtol(mac+(3*i), (char **) NULL, 16);
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addr[i] = (char)b;
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}
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}
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static int readfile_mac(u8 *path,u8 *mac_addr)
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{
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char buf[128];
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struct file *fp=NULL;
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int ret=0;
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fp=openFile(path,O_RDONLY,0);
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if (fp!=NULL)
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{
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initKernelEnv();
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memset(buf,0,128);
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if ((ret=readFile(fp,buf,128))>0)
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{
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parseMac(buf,(uint8_t *)mac_addr);
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}
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else
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printk("read file error %d=[%s]\n",ret,path);
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set_fs(oldfs);
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closeFile(fp);
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}
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else
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printk("Read open File fail[%s]!!!! \n",path);
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return ret;
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}
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static int write_mac_to_file(u8 *mac_path,u8 *mac_addr)
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{
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char buf[128];
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struct file *fp=NULL;
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int ret=0,len;
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mm_segment_t old_fs;
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fp=openFile(mac_path,O_WRONLY|O_CREAT,0640);
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if (fp!=NULL)
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{
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initKernelEnv();
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memset(buf,0,128);
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sprintf(buf,"%x:%x:%x:%x:%x:%x",mac_addr[0],mac_addr[1],mac_addr[2],mac_addr[3],mac_addr[4],mac_addr[5]);
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len = strlen(buf)+1;
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old_fs = get_fs();
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set_fs(KERNEL_DS);
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fp->f_op->write(fp, (char *)buf, len, &fp->f_pos);
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set_fs(old_fs);
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closeFile(fp);
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}
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else
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printk("Write open File fail!!!![%s] \n",mac_path);
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return ret;
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}
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static struct efuse_map SSV_EFUSE_ITEM_TABLE[] = {
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{4, 0, 0},
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{4, 8, 0},
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{4, 8, 0},
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{4, 48, 0},
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{4, 8, 0},
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{4, 8, 0},
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{4, 8, 0},
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};
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static u8 read_efuse(struct ssv_hw *sh, u8 *pbuf)
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{
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extern struct ssv6xxx_cfg ssv_cfg;
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u32 val, i;
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u32 *temp = (u32 *)pbuf;
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SMAC_REG_WRITE(sh,0xC0000328,0x11);
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SMAC_REG_WRITE(sh, SSV_EFUSE_ID_READ_SWITCH, 0x1);
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SMAC_REG_READ(sh, SSV_EFUSE_ID_RAW_DATA_BASE, &val);
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ssv_cfg.chip_identity = val;
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SMAC_REG_WRITE(sh, SSV_EFUSE_READ_SWITCH, 0x1);
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SMAC_REG_READ(sh, SSV_EFUSE_RAW_DATA_BASE, &val);
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if (val == 0x00) {
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return 0;
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}
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for (i = 0; i < (EFUSE_MAX_SECTION_MAP); i++)
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{
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SMAC_REG_WRITE(sh, SSV_EFUSE_READ_SWITCH+i*4, 0x1);
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SMAC_REG_READ(sh, SSV_EFUSE_RAW_DATA_BASE+i*4, &val);
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*temp++ = val;
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}
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SMAC_REG_WRITE(sh,0xC0000328,0x1800000a);
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return 1;
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}
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static u16 parser_efuse(u8 *pbuf, u8 *mac_addr)
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{
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u8 *rtemp8,idx=0;
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u16 shift=0,i;
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u16 efuse_real_content_len = 0;
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rtemp8 = pbuf;
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if (*rtemp8 == 0x00) {
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return efuse_real_content_len;
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}
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do
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{
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idx = (*(rtemp8) >> shift)&0xf;
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switch(idx)
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{
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case EFUSE_R_CALIBRATION_RESULT:
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case EFUSE_CRYSTAL_FREQUENCY_OFFSET:
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case EFUSE_TX_POWER_INDEX_1:
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case EFUSE_TX_POWER_INDEX_2:
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case EFUSE_SAR_RESULT:
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if(shift)
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{
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rtemp8 ++;
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SSV_EFUSE_ITEM_TABLE[idx].value = (u16)((u8)(*((u16*)rtemp8)) & ((1<< SSV_EFUSE_ITEM_TABLE[idx].byte_cnts) - 1));
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}
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else
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{
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SSV_EFUSE_ITEM_TABLE[idx].value = (u16)((u8)(*((u16*)rtemp8) >> 4) & ((1<< SSV_EFUSE_ITEM_TABLE[idx].byte_cnts) - 1));
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}
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efuse_real_content_len += (SSV_EFUSE_ITEM_TABLE[idx].offset + SSV_EFUSE_ITEM_TABLE[idx].byte_cnts);
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break;
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case EFUSE_MAC:
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if(shift)
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{
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rtemp8 ++;
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memcpy(mac_addr,rtemp8,6);
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}
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else
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{
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for(i=0;i<6;i++)
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{
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mac_addr[i] = (u16)(*((u16*)rtemp8) >> 4) & 0xff;
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rtemp8++;
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}
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}
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efuse_real_content_len += (SSV_EFUSE_ITEM_TABLE[idx].offset + SSV_EFUSE_ITEM_TABLE[idx].byte_cnts);
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break;
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#if 0
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case EFUSE_IQ_CALIBRAION_RESULT:
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if(shift)
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{
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rtemp8 ++;
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SSV_EFUSE_ITEM_TABLE[idx].value = (u16)(*((u16*)rtemp8)) & ((1<< SSV_EFUSE_ITEM_TABLE[idx].byte_cnts) - 1);
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}
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else
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{
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SSV_EFUSE_ITEM_TABLE[idx].value = (u16)(*((u16*)rtemp8) >> 4) & ((1<< SSV_EFUSE_ITEM_TABLE[idx].byte_cnts) - 1);
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}
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efuse_real_content_len += (SSV_EFUSE_ITEM_TABLE[idx].offset + SSV_EFUSE_ITEM_TABLE[idx].byte_cnts);
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break;
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#endif
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default:
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idx = 0;
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break;
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}
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shift = efuse_real_content_len % 8;
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rtemp8 = &pbuf[efuse_real_content_len / 8];
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}while(idx != 0);
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return efuse_real_content_len;
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}
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void addr_increase_copy(u8 *dst, u8 *src)
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{
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#if 0
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u16 *a = (u16 *)dst;
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const u16 *b = (const u16 *)src;
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a[0] = b[0];
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a[1] = b[1];
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if (b[2] == 0xffff)
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a[2] = b[2] - 1;
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else
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a[2] = b[2] + 1;
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#endif
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u8 *a = (u8 *)dst;
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const u8 *b = (const u8 *)src;
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a[0] = b[0];
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a[1] = b[1];
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a[2] = b[2];
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a[3] = b[3];
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a[4] = b[4];
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if (b[5]&0x1)
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a[5] = b[5] - 1;
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else
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a[5] = b[5] + 1;
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}
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static u8 key_char2num(u8 ch)
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{
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if((ch>='0')&&(ch<='9'))
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return ch - '0';
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else if ((ch>='a')&&(ch<='f'))
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return ch - 'a' + 10;
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else if ((ch>='A')&&(ch<='F'))
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return ch - 'A' + 10;
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else
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return 0xff;
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}
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u8 key_2char2num(u8 hch, u8 lch)
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{
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return ((key_char2num(hch) << 4) | key_char2num(lch));
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}
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extern struct ssv6xxx_cfg ssv_cfg;
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extern char* ssv_initmac;
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#ifdef ROCKCHIP_3126_SUPPORT
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extern int rockchip_wifi_mac_addr(unsigned char *buf);
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#endif
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#ifdef AML_WIFI_MAC
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extern u8 *wifi_get_mac(void);
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#endif
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void efuse_read_all_map(struct ssv_hw *sh)
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{
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u8 mac[ETH_ALEN] = {0};
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int jj,kk;
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u8 efuse_mapping_table[EFUSE_HWSET_MAX_SIZE/8];
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#ifndef CONFIG_SSV_RANDOM_MAC
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u8 pseudo_mac0[ETH_ALEN] = { 0x00, 0x33, 0x33, 0x33, 0x33, 0x33 };
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#endif
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u8 rom_mac0[ETH_ALEN];
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#ifdef EFUSE_DEBUG
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int i;
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#endif
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memset(rom_mac0,0x00,ETH_ALEN);
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memset(efuse_mapping_table,0x00,EFUSE_HWSET_MAX_SIZE/8);
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read_efuse(sh, efuse_mapping_table);
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#ifdef EFUSE_DEBUG
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for(i=0;i<(EFUSE_HWSET_MAX_SIZE/8);i++)
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{
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if(i%4 == 0)
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printk("\n");
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printk("%02x-",efuse_mapping_table[i]);
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}
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printk("\n");
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#endif
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parser_efuse(efuse_mapping_table,rom_mac0);
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ssv_cfg.r_calbration_result = (u8)SSV_EFUSE_ITEM_TABLE[EFUSE_R_CALIBRATION_RESULT].value;
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ssv_cfg.sar_result = (u8)SSV_EFUSE_ITEM_TABLE[EFUSE_SAR_RESULT].value;
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ssv_cfg.crystal_frequency_offset = (u8)SSV_EFUSE_ITEM_TABLE[EFUSE_CRYSTAL_FREQUENCY_OFFSET].value;
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ssv_cfg.tx_power_index_1 = (u8)SSV_EFUSE_ITEM_TABLE[EFUSE_TX_POWER_INDEX_1].value;
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ssv_cfg.tx_power_index_2 = (u8)SSV_EFUSE_ITEM_TABLE[EFUSE_TX_POWER_INDEX_2].value;
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if (!is_valid_ether_addr(&sh->cfg.maddr[0][0]))
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{
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#ifdef AML_WIFI_MAC
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memcpy(mac, wifi_get_mac(),ETH_ALEN);
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if (is_valid_ether_addr(mac)) {
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printk("Aml get mac address from key " \
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"[%02x:%02x:%02x:%02x:%02x:%02x]\n", \
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mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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memcpy(&sh->cfg.maddr[0][0], mac, ETH_ALEN);
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addr_increase_copy(&sh->cfg.maddr[1][0], mac);
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goto Done;
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}
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else {
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printk(">=========Aml invalid_wifi_addr=========< \n");
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}
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#endif
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#ifdef ROCKCHIP_3126_SUPPORT
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if (!rockchip_wifi_mac_addr(mac)) {
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printk("=========> get mac address from flash [%02x:%02x:%02x:%02x:%02x:%02x]\n", mac[0], mac[1],
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mac[2], mac[3], mac[4], mac[5]);
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if(is_valid_ether_addr(mac)) {
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memcpy(&sh->cfg.maddr[0][0],mac,ETH_ALEN);
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addr_increase_copy(&sh->cfg.maddr[1][0],mac);
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goto Done;
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}
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}
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#endif
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if(!sh->cfg.ignore_efuse_mac)
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{
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if (is_valid_ether_addr(rom_mac0)) {
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printk("MAC address from e-fuse\n");
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memcpy(&sh->cfg.maddr[0][0], rom_mac0, ETH_ALEN);
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addr_increase_copy(&sh->cfg.maddr[1][0], rom_mac0);
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goto Done;
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}
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}
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if (ssv_initmac != NULL)
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{
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for( jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 3 ) {
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mac[jj] = key_2char2num(ssv_initmac[kk], ssv_initmac[kk+ 1]);
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}
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if(is_valid_ether_addr(mac)) {
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printk("MAC address from insert module\n");
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memcpy(&sh->cfg.maddr[0][0],mac,ETH_ALEN);
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addr_increase_copy(&sh->cfg.maddr[1][0],mac);
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goto Done;
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}
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}
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if (sh->cfg.mac_address_path[0] != 0x00)
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{
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if((readfile_mac(sh->cfg.mac_address_path,&sh->cfg.maddr[0][0])) && (is_valid_ether_addr(&sh->cfg.maddr[0][0])))
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{
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printk("MAC address from sh->cfg.mac_address_path[wifi.cfg]\n");
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addr_increase_copy(&sh->cfg.maddr[1][0], &sh->cfg.maddr[0][0]);
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goto Done;
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}
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}
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switch (sh->cfg.mac_address_mode) {
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case 1:
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get_random_bytes(&sh->cfg.maddr[0][0],ETH_ALEN);
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sh->cfg.maddr[0][0] = sh->cfg.maddr[0][0] & 0xF0;
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addr_increase_copy(&sh->cfg.maddr[1][0], &sh->cfg.maddr[0][0]);
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break;
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case 2:
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if((readfile_mac(sh->cfg.mac_output_path,&sh->cfg.maddr[0][0])) && (is_valid_ether_addr(&sh->cfg.maddr[0][0])))
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{
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addr_increase_copy(&sh->cfg.maddr[1][0], &sh->cfg.maddr[0][0]);
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}
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else
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{
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{
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get_random_bytes(&sh->cfg.maddr[0][0],ETH_ALEN);
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sh->cfg.maddr[0][0] = sh->cfg.maddr[0][0] & 0xF0;
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addr_increase_copy(&sh->cfg.maddr[1][0], &sh->cfg.maddr[0][0]);
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if (sh->cfg.mac_output_path[0] != 0x00)
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write_mac_to_file(sh->cfg.mac_output_path,&sh->cfg.maddr[0][0]);
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}
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}
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break;
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default:
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memcpy(&sh->cfg.maddr[0][0], pseudo_mac0, ETH_ALEN);
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addr_increase_copy(&sh->cfg.maddr[1][0], pseudo_mac0);
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break;
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}
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printk("MAC address from Software MAC mode[%d]\n",sh->cfg.mac_address_mode);
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}
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Done:
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printk("EFUSE configuration\n");
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printk("Read efuse chip identity[%08x]\n",ssv_cfg.chip_identity);
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printk("r_calbration_result- %x\n",ssv_cfg.r_calbration_result);
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printk("sar_result- %x\n",ssv_cfg.sar_result);
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printk("crystal_frequency_offset- %x\n",ssv_cfg.crystal_frequency_offset);
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printk("tx_power_index_1- %x\n",ssv_cfg.tx_power_index_1);
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printk("tx_power_index_2- %x\n",ssv_cfg.tx_power_index_2);
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printk("MAC address - %pM\n", rom_mac0);
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sh->cfg.crystal_frequency_offset = ssv_cfg.crystal_frequency_offset;
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sh->cfg.tx_power_index_1 = ssv_cfg.tx_power_index_1;
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sh->cfg.tx_power_index_2 = ssv_cfg.tx_power_index_2;
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sh->cfg.chip_identity = ssv_cfg.chip_identity;
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}
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