1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Altera SoCFPGA common board code 4 * 5 * Copyright (C) 2015 Marek Vasut <marex@denx.de> 6 */ 7 8 #include <common.h> 9 #include <errno.h> 10 #include <fdtdec.h> 11 #include <asm/arch/reset_manager.h> 12 #include <asm/arch/clock_manager.h> 13 #include <asm/arch/misc.h> 14 #include <asm/io.h> 15 16 #include <usb.h> 17 #include <usb/dwc2_udc.h> 18 19 DECLARE_GLOBAL_DATA_PTR; 20 21 void s_init(void) { 22 #ifndef CONFIG_ARM64 23 /* 24 * Preconfigure ACTLR, make sure Write Full Line of Zeroes is disabled. 25 * This is optional on CycloneV / ArriaV. 26 * This is mandatory on Arria10, otherwise Linux refuses to boot. 27 */ 28 asm volatile( 29 "mcr p15, 0, %0, c1, c0, 1\n" 30 "isb\n" 31 "dsb\n" 32 ::"r"(0x0)); 33 #endif 34 } 35 36 /* 37 * Miscellaneous platform dependent initialisations 38 */ 39 int board_init(void) 40 { 41 /* Address of boot parameters for ATAG (if ATAG is used) */ 42 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 43 44 #if defined(CONFIG_TARGET_SOCFPGA_ARRIA10) 45 /* configuring the clock based on handoff */ 46 cm_basic_init(gd->fdt_blob); 47 48 /* Add device descriptor to FPGA device table */ 49 socfpga_fpga_add(); 50 #endif 51 52 return 0; 53 } 54 55 int dram_init_banksize(void) 56 { 57 fdtdec_setup_memory_banksize(); 58 59 return 0; 60 } 61 62 #ifdef CONFIG_USB_GADGET 63 struct dwc2_plat_otg_data socfpga_otg_data = { 64 .usb_gusbcfg = 0x1417, 65 }; 66 67 int board_usb_init(int index, enum usb_init_type init) 68 { 69 int node[2], count; 70 fdt_addr_t addr; 71 72 count = fdtdec_find_aliases_for_id(gd->fdt_blob, "udc", 73 COMPAT_ALTERA_SOCFPGA_DWC2USB, 74 node, 2); 75 if (count <= 0) /* No controller found. */ 76 return 0; 77 78 addr = fdtdec_get_addr(gd->fdt_blob, node[0], "reg"); 79 if (addr == FDT_ADDR_T_NONE) { 80 printf("UDC Controller has no 'reg' property!\n"); 81 return -EINVAL; 82 } 83 84 /* Patch the address from OF into the controller pdata. */ 85 socfpga_otg_data.regs_otg = addr; 86 87 return dwc2_udc_probe(&socfpga_otg_data); 88 } 89 90 int g_dnl_board_usb_cable_connected(void) 91 { 92 return 1; 93 } 94 #endif 95