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 <asm/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 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_PCI) 17 extern void ft_board_pci_setup(void *blob, bd_t *bd); 18 #endif 19 20 /* 21 * Print out which flash was booted from and if booting from the 2nd flash, 22 * swap flash chip selects to maintain consistent flash numbering/addresses. 23 */ 24 static void flash_cs_fixup(void) 25 { 26 int flash_sel; 27 28 /* 29 * Print boot dev and swap flash flash chip selects if booted from 2nd 30 * flash. Swapping chip selects presents user with a common memory 31 * map regardless of which flash was booted from. 32 */ 33 flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) & 34 CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS)); 35 printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1); 36 37 if (flash_sel) { 38 set_lbc_br(0, CONFIG_SYS_BR1_PRELIM); 39 set_lbc_or(0, CONFIG_SYS_OR1_PRELIM); 40 41 set_lbc_br(1, CONFIG_SYS_BR0_PRELIM); 42 set_lbc_or(1, CONFIG_SYS_OR0_PRELIM); 43 } 44 } 45 46 int board_early_init_r(void) 47 { 48 /* Initialize PCA9557 devices */ 49 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0); 50 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0); 51 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0); 52 pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0); 53 54 flash_cs_fixup(); 55 56 return 0; 57 } 58 59 phys_size_t initdram(int board_type) 60 { 61 phys_size_t dram_size = fsl_ddr_sdram(); 62 63 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) 64 /* Initialize and enable DDR ECC */ 65 ddr_enable_ecc(dram_size); 66 #endif 67 68 return dram_size; 69 } 70 71 #if defined(CONFIG_OF_BOARD_SETUP) 72 void ft_board_setup(void *blob, bd_t *bd) 73 { 74 #ifdef CONFIG_PCI 75 ft_board_pci_setup(blob, bd); 76 #endif 77 ft_cpu_setup(blob, bd); 78 } 79 #endif 80