/* * (C) Copyright 2002 * Rich Ireland, Enterasys Networks, rireland@enterasys.com. * * 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 <asm/processor.h> #include <asm/mmu.h> int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) { switch (bat) { case IBAT0: mtspr (IBAT0L, lower); mtspr (IBAT0U, upper); break; case IBAT1: mtspr (IBAT1L, lower); mtspr (IBAT1U, upper); break; case IBAT2: mtspr (IBAT2L, lower); mtspr (IBAT2U, upper); break; case IBAT3: mtspr (IBAT3L, lower); mtspr (IBAT3U, upper); break; case DBAT0: mtspr (DBAT0L, lower); mtspr (DBAT0U, upper); break; case DBAT1: mtspr (DBAT1L, lower); mtspr (DBAT1U, upper); break; case DBAT2: mtspr (DBAT2L, lower); mtspr (DBAT2U, upper); break; case DBAT3: mtspr (DBAT3L, lower); mtspr (DBAT3U, upper); break; default: return (-1); } return (0); } int read_bat (ppc_bat_t bat, unsigned long *upper, unsigned long *lower) { unsigned long register u; unsigned long register l; switch (bat) { case IBAT0: l = mfspr (IBAT0L); u = mfspr (IBAT0U); break; case IBAT1: l = mfspr (IBAT1L); u = mfspr (IBAT1U); break; case IBAT2: l = mfspr (IBAT2L); u = mfspr (IBAT2U); break; case IBAT3: l = mfspr (IBAT3L); u = mfspr (IBAT3U); break; case DBAT0: l = mfspr (DBAT0L); u = mfspr (DBAT0U); break; case DBAT1: l = mfspr (DBAT1L); u = mfspr (DBAT1U); break; case DBAT2: l = mfspr (DBAT2L); u = mfspr (DBAT2U); break; case DBAT3: l = mfspr (DBAT3L); u = mfspr (DBAT3U); break; default: return (-1); } *upper = u; *lower = l; return (0); }