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https://github.com/brain-hackers/u-boot-brain
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![Marek Vasut](/assets/img/avatar_default.png)
This patch implements code that samples i.MX28 boot pads and reports boot mode accordingly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de>
256 lines
6.7 KiB
C
256 lines
6.7 KiB
C
/*
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* (C) Copyright 2011 Freescale Semiconductor, Inc.
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* Author: Fabio Estevam <fabio.estevam@freescale.com>
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*
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* Based on m28evk.h:
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* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
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* on behalf of DENX Software Engineering GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <asm/arch/regs-base.h>
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/*
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* SoC configurations
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*/
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#define CONFIG_MX28 /* i.MX28 SoC */
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#define CONFIG_MXS_GPIO /* GPIO control */
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#define CONFIG_SYS_HZ 1000 /* Ticks per second */
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#define CONFIG_MACH_TYPE MACH_TYPE_MX28EVK
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#define CONFIG_SYS_NO_FLASH
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#define CONFIG_SYS_ICACHE_OFF
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#define CONFIG_SYS_DCACHE_OFF
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#define CONFIG_BOARD_EARLY_INIT_F
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#define CONFIG_ARCH_CPU_INIT
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#define CONFIG_ARCH_MISC_INIT
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/*
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* SPL
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*/
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#define CONFIG_SPL
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#define CONFIG_SPL_NO_CPU_SUPPORT_CODE
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#define CONFIG_SPL_START_S_PATH "arch/arm/cpu/arm926ejs/mx28"
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#define CONFIG_SPL_LDSCRIPT "arch/arm/cpu/arm926ejs/mx28/u-boot-spl.lds"
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#define CONFIG_SPL_LIBCOMMON_SUPPORT
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#define CONFIG_SPL_LIBGENERIC_SUPPORT
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#define CONFIG_SPL_GPIO_SUPPORT
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/*
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* U-Boot Commands
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*/
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#include <config_cmd_default.h>
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#define CONFIG_DISPLAY_CPUINFO
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#define CONFIG_DOS_PARTITION
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#define CONFIG_CMD_FAT
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#define CONFIG_CMD_CACHE
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#define CONFIG_CMD_DATE
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#define CONFIG_CMD_DHCP
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#define CONFIG_CMD_GPIO
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#define CONFIG_CMD_MII
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#define CONFIG_CMD_MMC
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#define CONFIG_CMD_NET
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#define CONFIG_CMD_NFS
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#define CONFIG_CMD_PING
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#define CONFIG_CMD_SF
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#define CONFIG_CMD_SPI
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#define CONFIG_CMD_USB
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#define CONFIG_CMD_BOOTZ
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/*
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* Memory configurations
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*/
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#define CONFIG_NR_DRAM_BANKS 1 /* 1 bank of DRAM */
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#define PHYS_SDRAM_1 0x40000000 /* Base address */
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#define PHYS_SDRAM_1_SIZE 0x40000000 /* Max 1 GB RAM */
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#define CONFIG_STACKSIZE (128 * 1024) /* 128 KB stack */
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#define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for malloc */
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#define CONFIG_SYS_MEMTEST_START 0x40000000 /* Memtest start adr */
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#define CONFIG_SYS_MEMTEST_END 0x40400000 /* 4 MB RAM test */
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#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
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/* Point initial SP in SRAM so SPL can use it too. */
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#define CONFIG_SYS_INIT_RAM_ADDR 0x00000000
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#define CONFIG_SYS_INIT_RAM_SIZE (128 * 1024)
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#define CONFIG_SYS_INIT_SP_OFFSET \
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(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
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#define CONFIG_SYS_INIT_SP_ADDR \
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(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
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/*
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* We need to sacrifice first 4 bytes of RAM here to avoid triggering some
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* strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot
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* binary. In case there was more of this mess, 0x100 bytes are skipped.
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*/
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#define CONFIG_SYS_TEXT_BASE 0x40000100
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#define CONFIG_ENV_OVERWRITE
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/*
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* U-Boot general configurations
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*/
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#define CONFIG_SYS_LONGHELP
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#define CONFIG_SYS_PROMPT "MX28EVK U-Boot > "
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#define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer size */
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#define CONFIG_SYS_PBSIZE \
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(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
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/* Print buffer size */
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#define CONFIG_SYS_MAXARGS 32 /* Max number of command args */
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#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
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/* Boot argument buffer size */
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#define CONFIG_VERSION_VARIABLE /* U-BOOT version */
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#define CONFIG_AUTO_COMPLETE /* Command auto complete */
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#define CONFIG_CMDLINE_EDITING /* Command history etc */
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#define CONFIG_SYS_HUSH_PARSER
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#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
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/*
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* Serial Driver
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*/
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#define CONFIG_PL011_SERIAL
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#define CONFIG_PL011_CLOCK 24000000
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#define CONFIG_PL01x_PORTS { (void *)MXS_UARTDBG_BASE }
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#define CONFIG_CONS_INDEX 0
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#define CONFIG_BAUDRATE 115200 /* Default baud rate */
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#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
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/*
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* DMA
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*/
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#define CONFIG_APBH_DMA
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/*
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* MMC Driver
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*/
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#define CONFIG_ENV_IS_IN_MMC
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#ifdef CONFIG_ENV_IS_IN_MMC
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#define CONFIG_ENV_OFFSET (256 * 1024)
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#define CONFIG_ENV_SIZE (16 * 1024)
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#define CONFIG_SYS_MMC_ENV_DEV 0
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#endif
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#define CONFIG_CMD_SAVEENV
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#ifdef CONFIG_CMD_MMC
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#define CONFIG_MMC
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#define CONFIG_GENERIC_MMC
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#define CONFIG_MMC_BOUNCE_BUFFER
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#define CONFIG_MXS_MMC
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#endif
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/*
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* NAND Driver
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*/
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#ifdef CONFIG_CMD_NAND
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#define CONFIG_NAND_MXS
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#define CONFIG_SYS_MAX_NAND_DEVICE 1
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#define CONFIG_SYS_NAND_BASE 0x60000000
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#define CONFIG_SYS_NAND_5_ADDR_CYCLE
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#endif
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/*
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* Ethernet on SOC (FEC)
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*/
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#ifdef CONFIG_CMD_NET
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#define CONFIG_NET_MULTI
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#define CONFIG_ETHPRIME "FEC0"
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#define CONFIG_FEC_MXC
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#define CONFIG_FEC_MXC_MULTI
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#define CONFIG_MII
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#define CONFIG_DISCOVER_PHY
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#define CONFIG_FEC_XCV_TYPE RMII
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#define CONFIG_MX28_FEC_MAC_IN_OCOTP
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#endif
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/*
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* RTC
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*/
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#ifdef CONFIG_CMD_DATE
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#define CONFIG_RTC_MXS
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#endif
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/*
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* USB
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*/
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#ifdef CONFIG_CMD_USB
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#define CONFIG_USB_EHCI
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#define CONFIG_USB_EHCI_MXS
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#define CONFIG_EHCI_MXS_PORT 1
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#define CONFIG_EHCI_IS_TDI
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#define CONFIG_USB_STORAGE
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#endif
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/*
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* SPI
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*/
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#ifdef CONFIG_CMD_SPI
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#define CONFIG_HARD_SPI
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#define CONFIG_MXS_SPI
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#define CONFIG_SPI_HALF_DUPLEX
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#define CONFIG_DEFAULT_SPI_BUS 2
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#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0
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/* SPI Flash */
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#ifdef CONFIG_CMD_SF
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#define CONFIG_SPI_FLASH
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#define CONFIG_SF_DEFAULT_BUS 2
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#define CONFIG_SF_DEFAULT_CS 0
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/* this may vary and depends on the installed chip */
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#define CONFIG_SPI_FLASH_SST
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#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
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#define CONFIG_SF_DEFAULT_SPEED 24000000
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/* (redundant) environemnt in SPI flash */
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#undef CONFIG_ENV_IS_IN_SPI_FLASH
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#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
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#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
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#define CONFIG_ENV_SIZE 0x1000 /* 4KB */
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#define CONFIG_ENV_OFFSET 0x40000 /* 256K */
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#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
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#define CONFIG_ENV_SECT_SIZE 0x1000
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#define CONFIG_ENV_SPI_CS 0
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#define CONFIG_ENV_SPI_BUS 2
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#define CONFIG_ENV_SPI_MAX_HZ 24000000
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#define CONFIG_ENV_SPI_MODE SPI_MODE_0
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#endif
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#endif
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#endif
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/*
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* Boot Linux
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*/
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#define CONFIG_CMDLINE_TAG
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#define CONFIG_SETUP_MEMORY_TAGS
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#define CONFIG_BOOTDELAY 3
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#define CONFIG_BOOTFILE "uImage"
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#define CONFIG_BOOTCOMMAND "run bootcmd_net"
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#define CONFIG_LOADADDR 0x42000000
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#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
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#define CONFIG_OF_LIBFDT
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/*
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* Extra Environments
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*/
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"console_fsl=console=ttyAM0" \
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"console_mainline=console=ttyAMA0" \
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"netargs=setenv bootargs console=${console_mainline}" \
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"root=/dev/nfs " \
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"ip=dhcp nfsroot=${serverip}:${nfsroot}\0" \
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"bootcmd_net=echo Booting from net ...; " \
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"run netargs; " \
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"dhcp ${uimage}; bootm\0" \
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#endif /* __CONFIG_H */
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