1/* 2 * bur_am335x_common.h 3 * 4 * common parts used by B&R AM335x based boards 5 * 6 * Copyright (C) 2016 Hannes Schmelzer <oe5hpm@oevsv.at> - 7 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com 8 * 9 * SPDX-License-Identifier: GPL-2.0+ 10 */ 11 12#ifndef __BUR_AM335X_COMMON_H__ 13#define __BUR_AM335X_COMMON_H__ 14/* ------------------------------------------------------------------------- */ 15#define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */ 16 17/* Timer information */ 18#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ 19#define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */ 20#define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */ 21#define CONFIG_POWER_TPS65217 22 23#include <asm/arch/omap.h> 24 25/* NS16550 Configuration */ 26#define CONFIG_SYS_NS16550_SERIAL 27#define CONFIG_SYS_NS16550_REG_SIZE (-4) 28#define CONFIG_SYS_NS16550_CLK 48000000 29#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ 30 31/* Network defines */ 32#define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */ 33#define CONFIG_MII /* Required in net/eth.c */ 34#define CONFIG_PHY_NATSEMI 35 36/* 37 * SPL related defines. The Public RAM memory map the ROM defines the 38 * area between 0x402F0400 and 0x4030B800 as a download area and 39 * 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also 40 * supports X-MODEM loading via UART, and we leverage this and then use 41 * Y-MODEM to load u-boot.img, when booted over UART. We must also include 42 * the scratch space that U-Boot uses in SRAM. 43 */ 44#define CONFIG_SPL_TEXT_BASE 0x402F0400 45#define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \ 46 CONFIG_SPL_TEXT_BASE) 47 48/* 49 * Since SPL did pll and ddr initialization for us, 50 * we don't need to do it twice. 51 */ 52#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT) 53#define CONFIG_SKIP_LOWLEVEL_INIT 54#endif /* !CONFIG_SPL_BUILD, ... */ 55/* 56 * Our DDR memory always starts at 0x80000000 and U-Boot shall have 57 * relocated itself to higher in memory by the time this value is used. 58 */ 59#define CONFIG_SYS_LOAD_ADDR 0x80000000 60/* 61 * ---------------------------------------------------------------------------- 62 * DDR information. We say (for simplicity) that we have 1 bank, 63 * always, even when we have more. We always start at 0x80000000, 64 * and we place the initial stack pointer in our SRAM. 65 */ 66#define CONFIG_NR_DRAM_BANKS 1 67#define CONFIG_SYS_SDRAM_BASE 0x80000000 68#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \ 69 GENERATED_GBL_DATA_SIZE) 70 71/* I2C */ 72#define CONFIG_SYS_I2C 73#define CONFIG_SYS_OMAP24_I2C_SPEED 100000 74#define CONFIG_SYS_OMAP24_I2C_SLAVE 1 75 76/* 77 * Our platforms make use of SPL to initalize the hardware (primarily 78 * memory) enough for full U-Boot to be loaded. We also support Falcon 79 * Mode so that the Linux kernel can be booted directly from SPL 80 * instead, if desired. We make use of the general SPL framework found 81 * under common/spl/. Given our generally common memory map, we set a 82 * number of related defaults and sizes here. 83 */ 84#define CONFIG_SPL_FRAMEWORK 85/* 86 * Place the image at the start of the ROM defined image space. 87 * We limit our size to the ROM-defined downloaded image area, and use the 88 * rest of the space for stack. We load U-Boot itself into memory at 89 * 0x80800000 for legacy reasons (to not conflict with older SPLs). We 90 * have our BSS be placed 1MiB after this, to allow for the default 91 * Linux kernel address of 0x80008000 to work, in the Falcon Mode case. 92 * We have the SPL malloc pool at the end of the BSS area. 93 * 94 * ---------------------------------------------------------------------------- 95 */ 96#undef CONFIG_SYS_TEXT_BASE 97#define CONFIG_SYS_TEXT_BASE 0x80800000 98#define CONFIG_SPL_BSS_START_ADDR 0x80A00000 99#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */ 100#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \ 101 CONFIG_SPL_BSS_MAX_SIZE) 102#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN 103 104/* General parts of the framework, required. */ 105 106#endif /* ! __BUR_AM335X_COMMON_H__ */ 107