| /* |
| * Copyright 2008 Extreme Engineering Solutions, Inc. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <asm/mmu.h> |
| #ifdef CONFIG_PCA953X |
| #include <pca953x.h> |
| |
| /* |
| * Determine if a board's flashes are write protected |
| */ |
| int board_flash_wp_on(void) |
| { |
| if (pca953x_get_val(CONFIG_SYS_I2C_PCA953X_ADDR0) & |
| CONFIG_SYS_PCA953X_NVM_WP) |
| return 1; |
| |
| return 0; |
| } |
| #endif |
| |
| /* |
| * Return a board's derivative model number. For example: |
| * return 2 for the XPedite5372 and return 1 for the XPedite5201. |
| */ |
| uint get_board_derivative(void) |
| { |
| #if defined(CONFIG_MPC85xx) |
| volatile ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; |
| #elif defined(CONFIG_MPC86xx) |
| volatile immap_t *immap = (immap_t *)CONFIG_SYS_CCSRBAR; |
| volatile ccsr_gur_t *gur = &immap->im_gur; |
| #endif |
| |
| /* |
| * The top 4 lines of the local bus address are pulled low/high and |
| * can be read to determine the least significant digit of a board's |
| * model number. |
| */ |
| return gur->gpporcr >> 28; |
| } |