1 /* 2 * Copyright 2009 Extreme Engineering Solutions, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <asm/processor.h> 9 #include <fsl_ddr_sdram.h> 10 #include <asm/mmu.h> 11 #include <asm/io.h> 12 #include <fdt_support.h> 13 #include <pca953x.h> 14 #include "../common/fsl_8xxx_misc.h" 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_PCI) 19 extern void ft_board_pci_setup(void *blob, bd_t *bd); 20 #endif 21 22 /* 23 * Print out which flash was booted from and if booting from the 2nd flash, 24 * swap flash chip selects to maintain consistent flash numbering/addresses. 25 */ 26 static void flash_cs_fixup(void) 27 { 28 int flash_sel; 29 30 /* 31 * Print boot dev and swap flash flash chip selects if booted from 2nd 32 * flash. Swapping chip selects presents user with a common memory 33 * map regardless of which flash was booted from. 34 */ 35 flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) & 36 CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS)); 37 printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1); 38 39 if (flash_sel) { 40 set_lbc_br(0, CONFIG_SYS_BR1_PRELIM); 41 set_lbc_or(0, CONFIG_SYS_OR1_PRELIM); 42 43 set_lbc_br(1, CONFIG_SYS_BR0_PRELIM); 44 set_lbc_or(1, CONFIG_SYS_OR0_PRELIM); 45 } 46 } 47 48 int board_early_init_r(void) 49 { 50 /* Initialize PCA9557 devices */ 51 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0); 52 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0); 53 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0); 54 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0); 55 56 flash_cs_fixup(); 57 58 return 0; 59 } 60 61 int dram_init(void) 62 { 63 phys_size_t dram_size = fsl_ddr_sdram(); 64 65 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) 66 /* Initialize and enable DDR ECC */ 67 ddr_enable_ecc(dram_size); 68 #endif 69 70 gd->ram_size = dram_size; 71 72 return 0; 73 } 74 75 #if defined(CONFIG_OF_BOARD_SETUP) 76 int ft_board_setup(void *blob, bd_t *bd) 77 { 78 #ifdef CONFIG_PCI 79 ft_board_pci_setup(blob, bd); 80 #endif 81 ft_cpu_setup(blob, bd); 82 83 return 0; 84 } 85 #endif 86