| Kumar Gala | 002ebef | 2009-09-11 13:52:45 -0500 | [diff] [blame^] | 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 | /* set up CCSR if we want it moved */ |
| 52 | #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) |
| 53 | { |
| 54 | u32 temp; |
| 55 | volatile u32 *ccsr_virt = |
| 56 | (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); |
| 57 | |
| 58 | mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1); |
| 59 | /* mas1 is the same as above */ |
| 60 | mas2 = FSL_BOOKE_MAS2((u32)ccsr_virt, MAS2_I|MAS2_G); |
| 61 | mas3 = FSL_BOOKE_MAS3(CONFIG_SYS_CCSRBAR_DEFAULT, 0, |
| 62 | MAS3_SW|MAS3_SR); |
| 63 | mas7 = FSL_BOOKE_MAS7(CONFIG_SYS_CCSRBAR_DEFAULT); |
| 64 | |
| 65 | write_tlb(mas0, mas1, mas2, mas3, mas7); |
| 66 | |
| 67 | temp = in_be32(ccsr_virt); |
| 68 | out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12); |
| 69 | temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR); |
| 70 | } |
| 71 | #endif |
| 72 | |
| 73 | init_laws(); |
| 74 | invalidate_tlb(0); |
| 75 | init_tlbs(); |
| 76 | } |