1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2 /* 3 * Copyright (c) 2018 Microsemi Corporation 4 */ 5 6 #include <common.h> 7 #include <asm/io.h> 8 #include <led.h> 9 10 DECLARE_GLOBAL_DATA_PTR; 11 12 enum { 13 BOARD_TYPE_PCB090 = 0xAABBCD00, 14 BOARD_TYPE_PCB091, 15 }; 16 17 void board_debug_uart_init(void) 18 { 19 /* too early for the pinctrl driver, so configure the UART pins here */ 20 mscc_gpio_set_alternate(30, 1); 21 mscc_gpio_set_alternate(31, 1); 22 } 23 24 int board_early_init_r(void) 25 { 26 /* Prepare SPI controller to be used in master mode */ 27 writel(0, BASE_CFG + ICPU_SW_MODE); 28 29 /* Address of boot parameters */ 30 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE; 31 32 /* LED setup */ 33 if (IS_ENABLED(CONFIG_LED)) 34 led_default_state(); 35 36 return 0; 37 } 38 39 static void do_board_detect(void) 40 { 41 u32 chipid = (readl(BASE_DEVCPU_GCB + CHIP_ID) >> 12) & 0xFFFF; 42 43 if (chipid == 0x7428 || chipid == 0x7424) 44 gd->board_type = BOARD_TYPE_PCB091; // Lu10 45 else 46 gd->board_type = BOARD_TYPE_PCB090; // Lu26 47 } 48 49 #if defined(CONFIG_MULTI_DTB_FIT) 50 int board_fit_config_name_match(const char *name) 51 { 52 if (gd->board_type == BOARD_TYPE_PCB090 && 53 strcmp(name, "luton_pcb090") == 0) 54 return 0; 55 56 if (gd->board_type == BOARD_TYPE_PCB091 && 57 strcmp(name, "luton_pcb091") == 0) 58 return 0; 59 60 return -1; 61 } 62 #endif 63 64 #if defined(CONFIG_DTB_RESELECT) 65 int embedded_dtb_select(void) 66 { 67 do_board_detect(); 68 fdtdec_setup(); 69 70 return 0; 71 } 72 #endif 73