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