1 /* 2 * Copyright 2009 Extreme Engineering Solutions, Inc. 3 * 4 * See file CREDITS for list of people who contributed to this 5 * project. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20 * MA 02111-1307 USA 21 */ 22 23 #include <common.h> 24 #include <asm/processor.h> 25 #include <asm/fsl_ddr_sdram.h> 26 #include <asm/mmu.h> 27 #include <asm/io.h> 28 #include <fdt_support.h> 29 #include <pca953x.h> 30 #include "../common/fsl_8xxx_misc.h" 31 32 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_PCI) 33 extern void ft_board_pci_setup(void *blob, bd_t *bd); 34 #endif 35 36 /* 37 * Print out which flash was booted from and if booting from the 2nd flash, 38 * swap flash chip selects to maintain consistent flash numbering/addresses. 39 */ 40 static void flash_cs_fixup(void) 41 { 42 int flash_sel; 43 44 /* 45 * Print boot dev and swap flash flash chip selects if booted from 2nd 46 * flash. Swapping chip selects presents user with a common memory 47 * map regardless of which flash was booted from. 48 */ 49 flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) & 50 CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS)); 51 printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1); 52 53 if (flash_sel) { 54 set_lbc_br(0, CONFIG_SYS_BR1_PRELIM); 55 set_lbc_or(0, CONFIG_SYS_OR1_PRELIM); 56 57 set_lbc_br(1, CONFIG_SYS_BR0_PRELIM); 58 set_lbc_or(1, CONFIG_SYS_OR0_PRELIM); 59 } 60 } 61 62 int board_early_init_r(void) 63 { 64 /* Initialize PCA9557 devices */ 65 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0); 66 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0); 67 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0); 68 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0); 69 70 flash_cs_fixup(); 71 72 return 0; 73 } 74 75 phys_size_t initdram(int board_type) 76 { 77 phys_size_t dram_size = fsl_ddr_sdram(); 78 79 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) 80 /* Initialize and enable DDR ECC */ 81 ddr_enable_ecc(dram_size); 82 #endif 83 84 return dram_size; 85 } 86 87 #if defined(CONFIG_OF_BOARD_SETUP) 88 void ft_board_setup(void *blob, bd_t *bd) 89 { 90 #ifdef CONFIG_PCI 91 ft_board_pci_setup(blob, bd); 92 #endif 93 ft_cpu_setup(blob, bd); 94 } 95 #endif 96