| /* |
| * Copyright 2008 Extreme Engineering Solutions, Inc. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <command.h> |
| #include <asm/processor.h> |
| #include <asm/mmu.h> |
| #include <asm/immap_85xx.h> |
| #include <asm/fsl_pci.h> |
| #include <asm/io.h> |
| #include <asm/cache.h> |
| #include <linux/libfdt.h> |
| #include <fdt_support.h> |
| #include <pca953x.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| extern void ft_board_pci_setup(void *blob, bd_t *bd); |
| |
| static void flash_cs_fixup(void) |
| { |
| int flash_sel; |
| |
| /* |
| * Print boot dev and swap flash flash chip selects if booted from 2nd |
| * flash. Swapping chip selects presents user with a common memory |
| * map regardless of which flash was booted from. |
| */ |
| flash_sel = !((pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) & |
| CONFIG_SYS_PCA953X_C0_FLASH_PASS_CS)); |
| printf("Flash: Executed from flash%d\n", flash_sel ? 2 : 1); |
| |
| if (flash_sel) { |
| set_lbc_br(0, CONFIG_SYS_BR1_PRELIM); |
| set_lbc_or(0, CONFIG_SYS_OR1_PRELIM); |
| |
| set_lbc_br(1, CONFIG_SYS_BR0_PRELIM); |
| set_lbc_or(1, CONFIG_SYS_OR0_PRELIM); |
| } |
| } |
| |
| int board_early_init_r(void) |
| { |
| /* Initialize PCA9557 devices */ |
| pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR0, 0xff, 0); |
| pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR1, 0xff, 0); |
| pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR2, 0xff, 0); |
| pca953x_set_pol(CONFIG_SYS_I2C_PCA953X_ADDR3, 0xff, 0); |
| |
| /* |
| * Remap NOR flash region to caching-inhibited |
| * so that flash can be erased/programmed properly. |
| */ |
| |
| /* Flush d-cache and invalidate i-cache of any FLASH data */ |
| flush_dcache(); |
| invalidate_icache(); |
| |
| /* Invalidate existing TLB entry for NOR flash */ |
| disable_tlb(0); |
| set_tlb(1, (CONFIG_SYS_FLASH_BASE2 & 0xf0000000), |
| (CONFIG_SYS_FLASH_BASE2 & 0xf0000000), |
| MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, |
| 0, 0, BOOKE_PAGESZ_256M, 1); |
| |
| flash_cs_fixup(); |
| |
| return 0; |
| } |
| |
| #if defined(CONFIG_OF_BOARD_SETUP) |
| int ft_board_setup(void *blob, bd_t *bd) |
| { |
| #ifdef CONFIG_PCI |
| ft_board_pci_setup(blob, bd); |
| #endif |
| ft_cpu_setup(blob, bd); |
| |
| return 0; |
| } |
| #endif |