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/*
* bur_am335x_common.h
*
* common parts used by B&R AM335x based boards
*
* Copyright (C) 2016 Hannes Schmelzer <oe5hpm@oevsv.at> -
* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __BUR_AM335X_COMMON_H__
#define __BUR_AM335X_COMMON_H__
/* ------------------------------------------------------------------------- */
#define CONFIG_MAX_RAM_BANK_SIZE (1024 << 20) /* 1GB */
/* Timer information */
#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
#define CONFIG_SYS_TIMERBASE 0x48040000 /* Use Timer2 */
#define CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC /* enable 32kHz OSC at bootime */
#define CONFIG_POWER_TPS65217
#include <asm/arch/omap.h>
/* NS16550 Configuration */
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE (-4)
#define CONFIG_SYS_NS16550_CLK 48000000
#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */
/* Network defines */
#define CONFIG_DRIVER_TI_CPSW /* Driver for IP block */
#define CONFIG_MII /* Required in net/eth.c */
#define CONFIG_PHY_NATSEMI
/*
* SPL related defines. The Public RAM memory map the ROM defines the
* area between 0x402F0400 and 0x4030B800 as a download area and
* 0x4030B800 to 0x4030CE00 as a public stack area. The ROM also
* supports X-MODEM loading via UART, and we leverage this and then use
* Y-MODEM to load u-boot.img, when booted over UART. We must also include
* the scratch space that U-Boot uses in SRAM.
*/
#define CONFIG_SPL_TEXT_BASE 0x402F0400
#define CONFIG_SPL_MAX_SIZE (SRAM_SCRATCH_SPACE_ADDR - \
CONFIG_SPL_TEXT_BASE)
/*
* Since SPL did pll and ddr initialization for us,
* we don't need to do it twice.
*/
#if !defined(CONFIG_SPL_BUILD) && !defined(CONFIG_NOR_BOOT)
#define CONFIG_SKIP_LOWLEVEL_INIT
#endif /* !CONFIG_SPL_BUILD, ... */
/*
* Our DDR memory always starts at 0x80000000 and U-Boot shall have
* relocated itself to higher in memory by the time this value is used.
*/
#define CONFIG_SYS_LOAD_ADDR 0x80000000
/*
* ----------------------------------------------------------------------------
* DDR information. We say (for simplicity) that we have 1 bank,
* always, even when we have more. We always start at 0x80000000,
* and we place the initial stack pointer in our SRAM.
*/
#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_SYS_SDRAM_BASE 0x80000000
#define CONFIG_SYS_INIT_SP_ADDR (NON_SECURE_SRAM_END - \
GENERATED_GBL_DATA_SIZE)
/* I2C */
#define CONFIG_SYS_I2C
#define CONFIG_SYS_OMAP24_I2C_SPEED 100000
#define CONFIG_SYS_OMAP24_I2C_SLAVE 1
/*
* Our platforms make use of SPL to initalize the hardware (primarily
* memory) enough for full U-Boot to be loaded. We also support Falcon
* Mode so that the Linux kernel can be booted directly from SPL
* instead, if desired. We make use of the general SPL framework found
* under common/spl/. Given our generally common memory map, we set a
* number of related defaults and sizes here.
*/
#define CONFIG_SPL_FRAMEWORK
/*
* Place the image at the start of the ROM defined image space.
* We limit our size to the ROM-defined downloaded image area, and use the
* rest of the space for stack. We load U-Boot itself into memory at
* 0x80800000 for legacy reasons (to not conflict with older SPLs). We
* have our BSS be placed 1MiB after this, to allow for the default
* Linux kernel address of 0x80008000 to work, in the Falcon Mode case.
* We have the SPL malloc pool at the end of the BSS area.
*
* ----------------------------------------------------------------------------
*/
#undef CONFIG_SYS_TEXT_BASE
#define CONFIG_SYS_TEXT_BASE 0x80800000
#define CONFIG_SPL_BSS_START_ADDR 0x80A00000
#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 /* 512 KB */
#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SPL_BSS_START_ADDR + \
CONFIG_SPL_BSS_MAX_SIZE)
#define CONFIG_SYS_SPL_MALLOC_SIZE CONFIG_SYS_MALLOC_LEN
/* General parts of the framework, required. */
#define CONFIG_SPL_LDSCRIPT "arch/arm/mach-omap2/u-boot-spl.lds"
#endif /* ! __BUR_AM335X_COMMON_H__ */
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