1 /* 2 * Copyright 2009 Freescale Semiconductor, Inc 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of 7 * the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 17 * MA 02111-1307 USA 18 */ 19 20 #include <common.h> 21 #include <asm/processor.h> 22 #include <asm/mmu.h> 23 #include <asm/fsl_law.h> 24 25 DECLARE_GLOBAL_DATA_PTR; 26 27 /* We run cpu_init_early_f in AS = 1 */ 28 void cpu_init_early_f(void) 29 { 30 u32 mas0, mas1, mas2, mas3, mas7; 31 int i; 32 33 /* Pointer is writable since we allocated a register for it */ 34 gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); 35 36 /* 37 * Clear initial global data 38 * we don't use memset so we can share this code with NAND_SPL 39 */ 40 for (i = 0; i < sizeof(gd_t); i++) 41 ((char *)gd)[i] = 0; 42 43 mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0); 44 mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K); 45 mas2 = FSL_BOOKE_MAS2(CONFIG_SYS_CCSRBAR, MAS2_I|MAS2_G); 46 mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR); 47 mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_PHYS); 48 49 write_tlb(mas0, mas1, mas2, mas3, mas7); 50 51 init_laws(); 52 invalidate_tlb(0); 53 init_tlbs(); 54 } 55