| /* |
| * Copyright (c) 2013 Qualcomm Atheros, Inc. |
| * |
| * 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 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 <command.h> |
| #include <asm/mipsregs.h> |
| #include <asm/addrspace.h> |
| #include <config.h> |
| #include <version.h> |
| #include "ar7240_soc.h" |
| |
| #ifdef CONFIG_ATH_NAND_BR |
| #include <nand.h> |
| #endif |
| |
| #ifdef CONFIG_ATH_NAND_BR |
| void * |
| ath_get_nand_cal_data(void) |
| { |
| ulong off,size; |
| int ret; |
| static u_char nand_cal_data[256 * 1024]; |
| nand_info_t *nand; |
| |
| /* |
| * caldata partition is of 128k |
| * |
| */ |
| nand = &nand_info[nand_curr_device]; |
| size = nand->erasesize; |
| |
| /* |
| * Get the Offset of Caldata partition |
| */ |
| off = ath_nand_get_cal_offset(getenv("bootargs")); |
| if(off == ATH_CAL_OFF_INVAL) { |
| printf("Invalid CAL offset \n"); |
| return 1; |
| } |
| |
| /* |
| * Get the values from flash, and program into the MAC address |
| * registers |
| */ |
| ret = nand_read(nand, (loff_t)off, &size, nand_cal_data); |
| printf(" %d bytes %s: %s\n", size, |
| "read", ret ? "ERROR" : "OK"); |
| if(ret != 0 ) { |
| return NULL; |
| } |
| |
| return nand_cal_data; |
| } |
| #endif |
| |
| void ath_set_tuning_caps(void) |
| { |
| typedef struct { |
| u_int8_t pad[0x28], |
| params_for_tuning_caps[2], |
| featureEnable; |
| } __attribute__((__packed__)) ar9300_eeprom_t; |
| |
| ar9300_eeprom_t *eep; |
| uint32_t val; |
| |
| #ifdef CONFIG_ATH_NAND_BR |
| eep = (ar9300_eeprom_t *)ath_get_nand_cal_data(); |
| #else |
| eep = (ar9300_eeprom_t *)WLANCAL; |
| #endif /* CONFIG_ATH_NAND_BR */ |
| |
| val = 0; |
| /* checking feature enable bit 6 and caldata is valid */ |
| if ((eep->featureEnable & 0x40) && (eep->pad[0x0] != 0xff)) { |
| /* xtal_capin -bit 17:23 and xtag_capout -bit 24:30*/ |
| val = (eep->params_for_tuning_caps[0] & 0x7f) << 17; |
| val |= (eep->params_for_tuning_caps[0] & 0x7f) << 24; |
| } else { |
| /* default when no caldata available*/ |
| /* checking clock in bit 4 */ |
| if (ar7240_reg_rd(RST_BOOTSTRAP_ADDRESS) & 0x10) { |
| val = (0x1020 << 17); /*default 0x2040 for 40Mhz clock*/ |
| } else { |
| val = (0x2040 << 17); /*default 0x4080 for 25Mhz clock*/ |
| } |
| } |
| val |= (ar7240_reg_rd(XTAL_ADDRESS) & (((1 << 17) - 1) | (1 << 31))); |
| ar7240_reg_wr(XTAL_ADDRESS, val); |
| printf("Setting 0xb8116290 to 0x%x\n", val); |
| return; |
| } |