mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-15 06:33:45 +09:00
![Kyle Moffett](/assets/img/avatar_default.png)
This EEPROM is hardware-write-protected and used to persist key information such as the serial number and MAC addresses even if the primary environment sector in NOR FLASH is overwritten. During manufacturing, the environment is initialized from Linux and then the key parameters copied to the EEPROM via U-Boot: env export -c -s 0x2000 $loadaddr serial# macaddr mac1addr mac2addr eeprom write $loadaddr 0x0000 0x2000 The chip is then locked via hardware for delivery. When doing a field U-Boot upgrade, the environment is erased and reset to the defaults to avoid problems with "hwconfig" changes, etc. After loading the new U-Boot image, the hardware data is reloaded: i2c dev 0 eeprom read $loadaddr 0x0000 0x2000 env import -c $loadaddr 0x2000 saveenv The first three commands are saved in the "restore_eeprom" variable for user convenience. (EG: "run restore_eeprom && saveenv") Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Cc: Andy Fleming <afleming@gmail.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
480 lines
17 KiB
C
480 lines
17 KiB
C
/*
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* Copyright 2009-2010 eXMeritus, A Boeing Company
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* HardwareWall HWW-1U-1A airborne unit configuration file
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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/* High-level system configuration options */
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#define CONFIG_BOOKE /* Power/PowerPC Book-E */
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#define CONFIG_E500 /* e500 (Power ISA v2.03 with SPE) */
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#define CONFIG_MPC85xx /* MPC8540/60/55/41/48 family */
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#define CONFIG_FSL_ELBC /* FreeScale Enhanced LocalBus Cntlr */
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#define CONFIG_FSL_LAW /* FreeScale Local Access Window */
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#define CONFIG_P2020 /* FreeScale P2020 */
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#define CONFIG_HWW1U1A /* eXMeritus HardwareWall HWW-1U-1A */
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#define CONFIG_MP /* Multiprocessing support */
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#define CONFIG_HWCONFIG /* Use hwconfig from environment */
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#define CONFIG_L2_CACHE /* L2 cache enabled */
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#define CONFIG_BTB /* Branch predition enabled */
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#define CONFIG_PANIC_HANG /* No board reset on panic */
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#define CONFIG_BOARD_EARLY_INIT_R /* Call board_early_init_r() */
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#define CONFIG_CMD_REGINFO /* Dump various CPU regs */
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/*
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* Allow the use of 36-bit physical addresses. Device-trees with 64-bit
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* addresses have known compatibility issues with some existing kernels.
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*/
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#define CONFIG_ENABLE_36BIT_PHYS
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#define CONFIG_PHYS_64BIT
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#define CONFIG_ADDR_MAP
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#define CONFIG_SYS_NUM_ADDR_MAP 16 /* Number of entries in TLB1 */
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/* Reserve plenty of RAM for malloc (we have 2GB+) */
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#define CONFIG_SYS_MALLOC_LEN (1024 * 1024)
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/* How much L2 cache do we map so we can use it as RAM */
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#define CONFIG_SYS_INIT_RAM_LOCK
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#define CONFIG_SYS_INIT_RAM_SIZE 0x00004000
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/* This is our temporary global data area just above the stack */
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#define CONFIG_SYS_GBL_DATA_OFFSET \
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(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
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/* The stack grows down from the global data area */
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#define CONFIG_SYS_INIT_SP_OFFSET CONFIG_SYS_GBL_DATA_OFFSET
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/* Enable IRQs and watchdog with a 1000Hz system decrementer */
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#define CONFIG_CMD_IRQ
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#define CONFIG_SYS_HZ 1000
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/* -------------------------------------------------------------------- */
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/*
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* Clock crystal configuration:
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* (1) SYS: 66.666MHz +/- 50ppm (drives CPU/PCI/DDR)
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* (2) CCB: Multiplier from SYS_CLK
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* (3) RTC: 25.000MHz +/- 50ppm (sampled against CCB clock)
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*/
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#define CONFIG_SYS_CLK_FREQ 66666000/*Hz*/
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#define CONFIG_DDR_CLK_FREQ 66666000/*Hz*/
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/* -------------------------------------------------------------------- */
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/*
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* Memory map
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*
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* 0x0000_0000 0x7fff_ffff 2G DDR2 ECC SDRAM
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* 0x8000_0000 0x9fff_ffff 512M PCI-E Bus 1
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* 0xa000_0000 0xbfff_ffff 512M PCI-E Bus 2 (unused)
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* 0xc000_0000 0xdfff_ffff 512M PCI-E Bus 3
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* 0xe000_0000 0xe7ff_ffff 128M Spansion FLASH
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* 0xe800_0000 0xefff_ffff 128M Spansion FLASH
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* 0xffd0_0000 0xffd0_3fff 16K L1 boot stack (TLB0)
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* 0xffe0_0000 0xffef_ffff 1M CCSR
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* 0xffe0_5000 0xffe0_5fff 4K Enhanced LocalBus Controller
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*/
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/* Virtual Memory Map */
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#define CONFIG_SYS_DDR_SDRAM_BASE 0x00000000
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#define CONFIG_SYS_SDRAM_BASE 0x00000000
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#define CONFIG_SYS_PCIE3_MEM_VIRT 0x80000000
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#define CONFIG_SYS_PCIE2_MEM_VIRT 0xa0000000
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#define CONFIG_SYS_PCIE1_MEM_VIRT 0xc0000000
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#define CONFIG_SYS_FLASH_BASE 0xe0000000
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#define CONFIG_SYS_PCIE3_IO_VIRT 0xffc00000
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#define CONFIG_SYS_PCIE2_IO_VIRT 0xffc10000
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#define CONFIG_SYS_PCIE1_IO_VIRT 0xffc20000
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#define CONFIG_SYS_INIT_RAM_ADDR 0xffd00000
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#define CONFIG_SYS_CCSRBAR 0xffe00000 /* CCSRBAR @ runtime */
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#define CONFIG_SYS_PCIE3_MEM_SIZE 0x20000000 /* 512M */
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#define CONFIG_SYS_PCIE2_MEM_SIZE 0x20000000 /* 512M */
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#define CONFIG_SYS_PCIE1_MEM_SIZE 0x20000000 /* 512M */
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#define CONFIG_SYS_PCIE3_IO_SIZE 0x00010000 /* 64k */
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#define CONFIG_SYS_PCIE2_IO_SIZE 0x00010000 /* 64k */
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#define CONFIG_SYS_PCIE1_IO_SIZE 0x00010000 /* 64k */
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/* Physical Memory Map */
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#define CONFIG_SYS_PCIE3_MEM_PHYS 0xc00000000ull
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#define CONFIG_SYS_PCIE2_MEM_PHYS 0xc20000000ull
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#define CONFIG_SYS_PCIE1_MEM_PHYS 0xc40000000ull
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#define CONFIG_SYS_FLASH_BASE_PHYS 0xfe0000000ull
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#define CONFIG_SYS_PCIE3_IO_PHYS 0xfffc00000ull
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#define CONFIG_SYS_PCIE2_IO_PHYS 0xfffc10000ull
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#define CONFIG_SYS_PCIE1_IO_PHYS 0xfffc20000ull
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#define CONFIG_SYS_INIT_RAM_ADDR_PHYS 0xfffd00000ull
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#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_HIGH 0xf /* for ASM code */
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#define CONFIG_SYS_INIT_RAM_ADDR_PHYS_LOW 0xffd00000 /* for ASM code */
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#define CONFIG_SYS_CCSRBAR_PHYS_HIGH 0xf /* for ASM code */
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#define CONFIG_SYS_CCSRBAR_PHYS_LOW 0xffe00000 /* for ASM code */
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/* -------------------------------------------------------------------- */
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/* U-Boot image (MONITOR_BASE == TEXT_BASE) */
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#define CONFIG_RESET_VECTOR_ADDRESS 0xeffffffc /* Top address in flash */
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#define CONFIG_SYS_TEXT_BASE 0xeff80000 /* Start of U-Boot image */
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#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE
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#define CONFIG_SYS_MONITOR_LEN 0x80000 /* 512kB (4 flash sectors) */
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/*
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* U-Boot Environment Image: The two sectors immediately below U-Boot
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* form the U-Boot environment (regular and redundant).
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*/
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#define CONFIG_ENV_IS_IN_FLASH /* The environment image is stored in FLASH */
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#define CONFIG_ENV_OVERWRITE /* Allow "protected" variables to be erased */
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#define CONFIG_ENV_SECT_SIZE 0x20000 /* 128kB (1 flash sector) */
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#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
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#define CONFIG_ENV_ADDR_REDUND (CONFIG_ENV_ADDR - CONFIG_ENV_SECT_SIZE)
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/* Only use 8kB of each environment sector for data */
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#define CONFIG_ENV_SIZE 0x2000 /* 8kB */
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#define CONFIG_ENV_SIZE_REDUND 0x2000 /* 8kB */
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/* -------------------------------------------------------------------- */
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/* Serial Console Configuration */
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#define CONFIG_CONS_INDEX 1
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#define CONFIG_SYS_NS16550
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#define CONFIG_SYS_NS16550_SERIAL
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#define CONFIG_SYS_NS16550_REG_SIZE 1
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#define CONFIG_SYS_NS16550_CLK get_bus_freq(0)
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#define CONFIG_BAUDRATE 115200
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#define CONFIG_SYS_BAUDRATE_TABLE \
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{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 115200}
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#define CONFIG_SYS_NS16550_COM1 (CONFIG_SYS_CCSRBAR+0x4500)
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#define CONFIG_SYS_NS16550_COM2 (CONFIG_SYS_CCSRBAR+0x4600)
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/* Echo back characters received during a serial download */
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#define CONFIG_LOADS_ECHO
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/* Allow a serial-download to temporarily change baud */
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#define CONFIG_SYS_LOADS_BAUD_CHANGE
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/* -------------------------------------------------------------------- */
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/* PCI and PCI-Express Support */
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#define CONFIG_PCI /* Enable PCI/PCIE */
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#define CONFIG_PCI_PNP /* Scan PCI busses */
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#define CONFIG_CMD_PCI /* Enable the "pci" command */
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#define CONFIG_FSL_PCI_INIT /* Common FreeScale PCI initialization */
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#define CONFIG_FSL_PCIE_RESET /* We have PCI-E reset errata */
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#define CONFIG_SYS_PCI_64BIT /* PCI resources are 64-bit */
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#define CONFIG_PCI_SCAN_SHOW /* Display PCI scan during boot */
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/* Enable 2 of the 3 PCI-E controllers */
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#define CONFIG_PCIE3
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#undef CONFIG_PCIE2
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#define CONFIG_PCIE1
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/* Display human-readable names when initializing */
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#define CONFIG_SYS_PCIE3_NAME "Intel 82571EB"
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#define CONFIG_SYS_PCIE2_NAME "Unused"
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#define CONFIG_SYS_PCIE1_NAME "Silicon Image SIL3531"
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/*
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* PCI bus addresses
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* Memory space is mapped 1-1, but I/O space must start from 0.
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*/
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#define CONFIG_SYS_PCIE3_IO_BUS 0x00000000
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#define CONFIG_SYS_PCIE2_IO_BUS 0x00000000
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#define CONFIG_SYS_PCIE1_IO_BUS 0x00000000
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#define CONFIG_SYS_PCIE3_MEM_BUS 0xe0000000
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#define CONFIG_SYS_PCIE2_MEM_BUS 0xe0000000
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#define CONFIG_SYS_PCIE1_MEM_BUS 0xe0000000
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/* -------------------------------------------------------------------- */
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/* Generic FreeScale hardware I2C support */
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#define CONFIG_HARD_I2C
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#define CONFIG_FSL_I2C
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#define CONFIG_CMD_I2C
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#define CONFIG_I2C_MULTI_BUS
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#define CONFIG_SYS_I2C_OFFSET 0x3000
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#define CONFIG_SYS_I2C2_OFFSET 0x3100
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/* I2C bus configuration */
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#define CONFIG_SYS_I2C_SPEED 400000
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#define CONFIG_SYS_I2C_SLAVE 0x7F
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/* DDR2 SO-RDIMM SPD EEPROM is at I2C0-0x51 */
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#define CONFIG_SYS_SPD_BUS_NUM 0
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#define SPD_EEPROM_ADDRESS 0x51
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/* DS1339 RTC is at I2C0-0x68 (I know it says "DS1337", it's a DS1339) */
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#define CONFIG_CMD_DATE
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#define CONFIG_RTC_DS1337
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#define CONFIG_SYS_RTC_BUS_NUM 0
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#define CONFIG_SYS_I2C_RTC_ADDR 0x68
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/* Turn off RTC square-wave output to save battery */
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#define CONFIG_SYS_RTC_DS1337_NOOSC
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/*
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* AT24C128N EEPROM at I2C0-0x53.
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*
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* That Atmel EEPROM has 128kbit of memory (16kByte) divided into 256 pages
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* of 64 bytes per page. The chip uses 2-byte addresses and has a max write
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* cycle time of 20ms according to the datasheet.
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*
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* NOTE: Our environment is stored on regular direct-attached FLASH, this
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* chip is only used as a write-protected backup for certain key settings
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* such as the serial# and macaddr values. (EG: "env import")
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*/
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#define CONFIG_CMD_EEPROM
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#define CONFIG_ENV_EEPROM_IS_ON_I2C
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#define CONFIG_SYS_I2C_EEPROM_ADDR 0x53
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#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2
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#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 6 /* 1 << 6 == 64 byte pages */
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#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 21
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/*
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* PCA9554 is at I2C1-0x3f (I know it says "PCA953X", it's a PCA9554). You
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* must first select the I2C1 bus with "i2c dev 1" or the "pca953x" command
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* will not be able to access the chip.
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*/
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#define CONFIG_PCA953X
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#define CONFIG_CMD_PCA953X
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#define CONFIG_CMD_PCA953X_INFO
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#define CONFIG_SYS_I2C_PCA953X_ADDR 0x3f
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/* -------------------------------------------------------------------- */
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/* FreeScale DDR2/3 SDRAM Controller */
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#define CONFIG_FSL_DDR2 /* Our SDRAM slot is DDR2 */
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#define CONFIG_DDR_ECC /* Enable ECC by default */
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#define CONFIG_DDR_SPD /* Detect DDR config from SPD EEPROM */
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#define CONFIG_SPD_EEPROM /* ...why 2 config variables for this? */
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#define CONFIG_VERY_BIG_RAM /* Allow 2GB+ of RAM */
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#define CONFIG_CMD_SDRAM
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/* Standard P2020 DDR controller parameters */
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#define CONFIG_NUM_DDR_CONTROLLERS 1
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#define CONFIG_DIMM_SLOTS_PER_CTLR 1
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#define CONFIG_CHIP_SELECTS_PER_CTRL 2
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/* Make sure to tell the DDR controller to preinitialze all of RAM */
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#define CONFIG_MEM_INIT_VALUE 0xDEADBEEF
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#define CONFIG_ECC_INIT_VIA_DDRCONTROLLER
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/* -------------------------------------------------------------------- */
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/* FLASH Memory Configuration (2x 128MB SPANSION FLASH) */
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#define CONFIG_FLASH_CFI_DRIVER
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#define CONFIG_SYS_FLASH_CFI
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#define CONFIG_SYS_FLASH_EMPTY_INFO
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#define CONFIG_SYS_FLASH_AMD_CHECK_DQ7
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/* Flash banks (2x 128MB) */
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#define FLASH0_PHYS (CONFIG_SYS_FLASH_BASE_PHYS + 0x8000000ull)
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#define FLASH1_PHYS (CONFIG_SYS_FLASH_BASE_PHYS + 0x0000000ull)
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#define CONFIG_SYS_MAX_FLASH_BANKS 2
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#define CONFIG_SYS_MAX_FLASH_SECT 1024
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#define CONFIG_SYS_FLASH_BANKS_LIST { FLASH0_PHYS, FLASH1_PHYS }
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/*
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* Flash access modes and timings (values are the defaults after a RESET).
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*
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* NOTE: These could probably be optimized but are more than sufficient for
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* this particular system for the moment.
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*/
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#define FLASH_BRx (BR_PS_16 | BR_MS_GPCM | BR_V)
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#define FLASH_ORx (OR_GPCM_CSNT | OR_GPCM_ACS_DIV2 | OR_GPCM_XACS \
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| OR_GPCM_SCY_15 | OR_GPCM_TRLX | OR_GPCM_EHTR | OR_GPCM_EAD)
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/* Configure both flash banks */
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#define CONFIG_SYS_BR0_PRELIM (FLASH_BRx | BR_PHYS_ADDR(FLASH0_PHYS))
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#define CONFIG_SYS_BR1_PRELIM (FLASH_BRx | BR_PHYS_ADDR(FLASH1_PHYS))
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#define CONFIG_SYS_OR0_PRELIM (FLASH_ORx | OR_AM_128MB)
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#define CONFIG_SYS_OR1_PRELIM (FLASH_ORx | OR_AM_128MB)
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/* Flash timeouts (in ms) */
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#define CONFIG_SYS_FLASH_ERASE_TOUT 60000UL /* Erase (60s) */
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#define CONFIG_SYS_FLASH_WRITE_TOUT 500UL /* Write (0.5s) */
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/* Quiet flash testing */
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#define CONFIG_SYS_FLASH_QUIET_TEST
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/* Make program/erase count down from 45/5 (9....8....7....) */
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#define CONFIG_FLASH_SHOW_PROGRESS 45
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/* -------------------------------------------------------------------- */
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/* Ethernet Device Support */
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#define CONFIG_MII /* Enable MII PHY code */
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#define CONFIG_MII_DEFAULT_TSEC /* ??? Copied from P2020DS */
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#define CONFIG_PHY_GIGE /* Support Gigabit PHYs */
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#define CONFIG_ETHPRIME "e1000#0" /* Default to external ports */
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/* Turn on various helpful networking commands */
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#define CONFIG_CMD_DHCP
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#define CONFIG_CMD_MII
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#define CONFIG_CMD_NET
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#define CONFIG_CMD_PING
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/* On-chip FreeScale P2020 "tsec" Ethernet (oneway fibers and peer) */
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#define CONFIG_TSEC_ENET
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#define CONFIG_TSEC1
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#define CONFIG_TSEC2
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#define CONFIG_TSEC3
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#define CONFIG_TSEC1_NAME "owt0"
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#define CONFIG_TSEC2_NAME "owt1"
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#define CONFIG_TSEC3_NAME "peer"
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#define TSEC1_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)
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#define TSEC2_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)
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#define TSEC3_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)
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#define TSEC1_PHYIDX 0
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#define TSEC2_PHYIDX 0
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#define TSEC3_PHYIDX 0
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#define TSEC1_PHY_ADDR 2
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#define TSEC2_PHY_ADDR 3
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#define TSEC3_PHY_ADDR 4
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#define TSEC3_PHY_ADDR_CPUA 4
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#define TSEC3_PHY_ADDR_CPUB 5
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/* PCI-E dual-port E1000 (external ethernet ports) */
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#define CONFIG_E1000
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#define CONFIG_E1000_SPI
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#define CONFIG_E1000_SPI_GENERIC
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#define CONFIG_CMD_E1000
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/* We need the SPI infrastructure to poke the E1000's EEPROM */
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#define CONFIG_SPI
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#define CONFIG_SPI_X
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#define CONFIG_CMD_SPI
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#define MAX_SPI_BYTES 32
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/* -------------------------------------------------------------------- */
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/* USB Thumbdrive Device Support */
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#define CONFIG_USB_EHCI
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#define CONFIG_USB_EHCI_FSL
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#define CONFIG_USB_STORAGE
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#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
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#define CONFIG_CMD_USB
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/* Partition and Filesystem support */
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#define CONFIG_DOS_PARTITION
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#define CONFIG_EFI_PARTITION
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#define CONFIG_ISO_PARTITION
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#define CONFIG_CMD_EXT2
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#define CONFIG_CMD_FAT
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/* -------------------------------------------------------------------- */
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/* Command line configuration. */
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#define CONFIG_CMDLINE_EDITING /* Enable command editing */
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#define CONFIG_COMMAND_HISTORY /* Enable command history */
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#define CONFIG_AUTO_COMPLETE /* Enable command completion */
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#define CONFIG_SYS_LONGHELP /* Enable detailed command help */
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#define CONFIG_SYS_MAXARGS 128 /* Up to 128 command-line args */
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#define CONFIG_SYS_PBSIZE 8192 /* Allow up to 8k printed lines */
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#define CONFIG_SYS_CBSIZE 4096 /* Allow up to 4k command lines */
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#define CONFIG_SYS_BARGSIZE 4096 /* Allow up to 4k boot args */
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#define CONFIG_SYS_HUSH_PARSER /* Enable a fancier shell */
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#define CONFIG_SYS_PROMPT_HUSH_PS2 "> " /* Command-line continuation */
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/* A little extra magic here for the prompt */
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#define CONFIG_SYS_PROMPT hww1u1a_get_ps1()
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#ifndef __ASSEMBLY__
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const char *hww1u1a_get_ps1(void);
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#endif
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/* Include a bunch of default commands we probably want */
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#include <config_cmd_default.h>
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/* Other helpful shell-like commands */
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#define CONFIG_MD5
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#define CONFIG_SHA1
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#define CONFIG_CMD_MD5SUM
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#define CONFIG_CMD_SHA1
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#define CONFIG_CMD_ASKENV
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#define CONFIG_CMD_SETEXPR
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/* -------------------------------------------------------------------- */
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/* Image manipulation and booting */
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/* We use the OpenFirmware-esque "Flattened Device Tree" */
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#define CONFIG_OF_LIBFDT
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#define CONFIG_OF_BOARD_SETUP
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#define CONFIG_OF_STDOUT_VIA_ALIAS
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/*
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* For booting Linux, the board info and command line data
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* have to be in the first 64 MB of memory, since this is
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* the maximum mapped by the Linux kernel during initialization.
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*/
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#define CONFIG_CMD_ELF
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#define CONFIG_SYS_BOOTMAPSZ (64 << 20) /* Maximum kernel memory map */
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#define CONFIG_SYS_BOOTM_LEN (64 << 20) /* Maximum kernel size of 64MB */
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/* This is the default address for commands with an optional address arg */
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#define CONFIG_LOADADDR 100000
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#define CONFIG_SYS_LOAD_ADDR 0x100000
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/* Test memory starting from the default load address to just below 2GB */
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#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_LOAD_ADDR
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#define CONFIG_SYS_MEMTEST_END 0x7f000000
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#define CONFIG_BOOTDELAY 20
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#define CONFIG_BOOTCOMMAND "echo Not yet flashed"
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#define CONFIG_BOOTARGS ""
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#define CONFIG_BOOTARGS_DYNAMIC "console=ttyS0,${baudrate}n1"
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|
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/* Extra environment parameters */
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|
#define CONFIG_EXTRA_ENV_SETTINGS \
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"ethprime=e1000#0\0" \
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"ethrotate=no\0" \
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"setbootargs=setenv bootargs " \
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"\"${bootargs} "CONFIG_BOOTARGS_DYNAMIC"\"\0" \
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"perf_mode=performance\0" \
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"hwconfig=" "fsl_ddr:ctlr_intlv=bank,bank_intlv=cs0_cs1;" \
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"usb1:dr_mode=host,phy_type=ulpi\0" \
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"flkernel=0xe8000000\0" \
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"flinitramfs=0xe8800000\0" \
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"fldevicetree=0xeff20000\0" \
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"flbootm=bootm ${flkernel} ${flinitramfs} ${fldevicetree}\0" \
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"flboot=run preboot; run flbootm\0" \
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"restore_eeprom=i2c dev 0 && " \
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"eeprom read $loadaddr 0x0000 0x2000 && " \
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|
"env import -c $loadaddr 0x2000\0"
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#endif /* __CONFIG_H */
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