[U-Boot] U-BOOT porting to PORTUX 920T
Luca Lazzarin
luca.lazzarin at gmail.com
Sat Mar 13 16:34:43 CET 2010
Hi all!
This is the "latest" version of our porting to Taskit PORTUX 920T mini-pc.
Thank to Achim Ehrlich - we got all we needed working! Timing has been set
to s$
Basically - we have seen:
- dataflash working
- usb transfers ok
- environment
We should test other hardware - hoping to get feedback, at least from
Taskit!
Thank to all the people helped us!
Motherboard config settings:
portux920t.h:
-----------------------------------------------------
/*
* Enrico Mioso & Luca Lazzarin - u-boot sub-porting for Taskit Portux 920T!
* Derived from work made by Ulf Samuelsson <ulf at atmel.com> and Rick Bronson
* <rick at efn.org>(at91rm9200ek port)
*
* Configuration settings for the PORTUX920t mini-pc board.
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/* ARM asynchronous clock */
/*
* from 18.432 MHz crystal
* (18432000 / 4 * 39)
*/
#define AT91C_MAIN_CLOCK 179712000
/*
* peripheral clock
* (AT91C_MASTER_CLOCK / 3)
*/
#define AT91C_MASTER_CLOCK 59904000
#define AT91_SLOW_CLOCK 32768 /* slow clock */
#define CONFIG_ARM920T 1 /* This is an ARM920T Core */
#define CONFIG_AT91RM9200 1 /* It's an Atmel AT91RM9200 SoC */
#define CONFIG_AT91RM9200EK 1 /* on an AT91RM9200EK Board */
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define USE_920T_MMU 1
/*
Those following defines are needed to support latest kernel - don't
bother...
*/
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1 /* and remember to "mkimage" initrd */
/*
* LowLevel Init
*/
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_SYS_USE_MAIN_OSCILLATOR 1
/* flash */
#define CONFIG_SYS_EBI_CFGR_VAL 0x00000000
#define CONFIG_SYS_SMC_CSR0_VAL 0x00003286 /* 16bit, 2 TDF, 4 WS ?????? */
/* clocks */
#define CONFIG_SYS_PLLAR_VAL 0x20263E04 /* 179.712000 MHz for PCK */
#define CONFIG_SYS_PLLBR_VAL 0x10483E0E /* 48.054857 MHz (divider by 2 for
USB) */
/* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
#define CONFIG_SYS_MCKR_VAL 0x00000202
/* sdram */
#define CONFIG_SYS_PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral
(D16/D31) */
#define CONFIG_SYS_PIOC_BSR_VAL 0x00000000
#define CONFIG_SYS_PIOC_PDR_VAL 0xFFFF0000
#define CONFIG_SYS_EBI_CSA_VAL 0x00000002 /* CS1=CONFIG_SYS_SDRAM */
/* and here - the "secret" of this port... */
#define CONFIG_SYS_SDRC_CR_VAL 0x21914159 /* set up the CONFIG_SYS_SDRAM */
#define CONFIG_SYS_SDRAM 0x20000000 /* address of the CONFIG_SYS_SDRAM */
#define CONFIG_SYS_SDRAM1 0x20000080 /* address of the CONFIG_SYS_SDRAM */
#define CONFIG_SYS_SDRAM_VAL 0x00000000 /* value written to CONFIG_SYS_SDRAM
*/
#define CONFIG_SYS_SDRC_MR_VAL 0x00000002 /* Precharge All */
#define CONFIG_SYS_SDRC_MR_VAL1 0x00000004 /* refresh */
#define CONFIG_SYS_SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
#define CONFIG_SYS_SDRC_MR_VAL3 0x00000000 /* Normal Mode */
#define CONFIG_SYS_SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
#else
#define CONFIG_SKIP_RELOCATE_UBOOT
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
/* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
#define CONFIG_SYS_AT91C_BRGR_DIVISOR 33
/*
* Memory Configuration
*/
#define CONFIG_NR_DRAM_BANKS 2
#define PHYS_SDRAM 0x20000000
#define PHYS_SDRAM_SIZE 0x04000000 /* 64 megs */
#define CONFIG_SYS_MEMTEST_START PHYS_SDRAM
#define CONFIG_SYS_MEMTEST_END \
(CONFIG_SYS_MEMTEST_START + PHYS_SDRAM_SIZE - 262144)
/*
* Hardware drivers
*/
/*
* UART Configuration
*
* define one of these to choose the DBGU,
* USART0 or USART1 as console
*/
#define CONFIG_AT91RM9200_USART
#define CONFIG_DBGU
#undef CONFIG_USART0
#undef CONFIG_USART1
/* don't include RTS/CTS flow control support */
#undef CONFIG_HWFLOW
/* disable modem initialization stuff */
#undef CONFIG_MODEM_SUPPORT
#define CONFIG_SYS_BAUDRATE_TABLE {115200 , 19200, 38400, 57600, 9600 }
#define CONFIG_BAUDRATE 115200
/*
* Command line configuration.
*/
#include <config_cmd_all.h>
#include "ourboard.h"
/* let our new include file decide about this */
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_FAT
#define CONFIG_CMD_MII
#define CONFIG_CMD_PING
/* holds on... */
#undef CONFIG_CMD_BDI /* see below */
#define CONFIG_CMD_IMI
#undef CONFIG_CMD_FPGA
#define CONFIG_CMD_MISC
#define CONFIG_CMD_LOADS
#include <asm/arch/AT91RM9200.h> /* needed for port definitions */
/* Options for MMC/SD Card */
#define CONFIG_DOS_PARTITION 1
#undef CONFIG_MMC
#define CONFIG_SYS_MMC_BASE 0xFFFB4000
#define CONFIG_SYS_MMC_BLOCKSIZE 512
/*
* Network Driver Setting
*/
#define CONFIG_HAS_ETH0
#define CONFIG_DRIVER_ETHER
#define CONFIG_NET_RETRY_COUNT 20
#define CONFIG_AT91C_USE_RMII
/*
* AC Characteristics
* DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns
*/
#define DATAFLASH_TCSS (0xC << 16)
#define DATAFLASH_TCHS (0x1 << 24)
/* and our board has dataflash... */
#define CONFIG_HAS_DATAFLASH
#if defined(CONFIG_HAS_DATAFLASH)
#define CONFIG_SYS_SPI_WRITE_TOUT (5 * CONFIG_SYS_HZ)
#define CONFIG_SYS_MAX_DATAFLASH_BANKS 2
#define CONFIG_SYS_MAX_DATAFLASH_PAGES 16384
/* Logical adress for CS0 */
#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000
/* Logical adress for CS3 */
#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000
#define CONFIG_SYS_SUPPORT_BLOCK_ERASE 1
#define CONFIG_SYS_DATAFLASH_MMC_PIO AT91C_PIO_PB22
#endif
/*
* NOR Flash
*/
#define CONFIG_SYS_FLASH_BASE 0x10000000
#define PHYS_FLASH_SIZE 0x1000000 /* 16MB */
#define CONFIG_SYS_FLASH_CFI 1
#define CONFIG_FLASH_CFI_DRIVER 1
#define CONFIG_SYS_MAX_FLASH_BANKS 1
#define CONFIG_SYS_MAX_FLASH_SECT 256
#define CONFIG_SYS_FLASH_PROTECTION /* yes, it seems to use hw protection */
/*
* Environment Settings
*/
#ifdef CONFIG_ENV_IS_IN_DATAFLASH
/*
* Datasflash Environment Settings
*/
#define CONFIG_ENV_OFFSET 0x4200
#define CONFIG_ENV_ADDR \
(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
/* 8 * 1056 really , but start.s is not OK with this*/
#define CONFIG_ENV_SIZE 0x2000
#else
/*
* NOR Flash Environment Settings
*/
#define CONFIG_ENV_IS_IN_FLASH 1
#ifdef CONFIG_SKIP_LOWLEVEL_INIT
/*
* between boot.bin and u-boot.bin.gz
*/
#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + 0xe000)
#define CONFIG_ENV_SIZE 0x10000 /* sectors are 64K here */
#else
/*
* after u-boot.bin
*/
#define CONFIG_ENV_ADDR \
(CONFIG_SYS_FLASH_BASE + CONFIG_SYS_MONITOR_LEN)
#define CONFIG_ENV_SIZE 0x20000 /* sectors are 128K here */
/* The following #defines are needed to get flash environment right */
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
#define CONFIG_SYS_MONITOR_LEN \
(CONFIG_SYS_BOOT_SIZE + CONFIG_SYS_U_BOOT_SIZE)
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
#endif /* CONFIG_ENV_IS_IN_DATAFLASH */
/*
* Boot option
*/
#define CONFIG_BOOTDELAY 3
#ifdef CONFIG_SKIP_LOWLEVEL_INIT
/* boot.bin, env, u-boot.bin.gz */
#define CONFIG_SYS_BOOT_SIZE 0x6000 /* 24 KBytes */
#define CONFIG_SYS_U_BOOT_BASE (CONFIG_SYS_FLASH_BASE + 0x10000)
#define CONFIG_SYS_U_BOOT_SIZE 0x10000 /* 64 KBytes */
#else
/* u-boot.bin */
#define CONFIG_SYS_BOOT_SIZE 0x0 /* 0 KBytes */
#define CONFIG_SYS_U_BOOT_BASE CONFIG_SYS_FLASH_BASE
/*
Here the comment was wrong - without any modification, this specifies a
256k u-boot, more realistic those days...
*/
#define CONFIG_SYS_U_BOOT_SIZE 0x40000 /* 256 KBytes */
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
#define CONFIG_SYS_LOAD_ADDR 0x21000000 /* default load address */
#define CONFIG_ENV_OVERWRITE 1 /* we're not vendors... yes... */
/*
* USB Config
*/
#define CONFIG_CMD_USB
#define CONFIG_USB_OHCI_NEW 1
#define CONFIG_USB_KEYBOARD 1
#define CONFIG_USB_STORAGE 1
#define CONFIG_DOS_PARTITION 1
#undef CONFIG_SYS_USB_OHCI_BOARD_INIT
#define CONFIG_SYS_USB_OHCI_CPU_INIT 1
#define CONFIG_SYS_USB_OHCI_REGS_BASE AT91_USB_HOST_BASE
#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91rm9200"
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 15
/*
* I2C
*/
#define CONFIG_HARD_I2C
#ifdef CONFIG_HARD_I2C
#define CONFIG_CMD_I2C
#define CONFIG_SYS_I2C_SPEED 0 /* not used */
#define CONFIG_SYS_I2C_SLAVE 0 /* not used */
#endif
/*
* Shell Settings
*/
#define CONFIG_CMDLINE_EDITING 1
#define CONFIG_SYS_LONGHELP 1
#define CONFIG_AUTO_COMPLETE 1
//#define CONFIG_SYS_HUSH_PARSER 1 /* I don't like hush */
#define CONFIG_SYS_PROMPT "NS U-Boot> "
//#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
#define CONFIG_SYS_MAXARGS 26 /* max number of command args */
/* Print Buffer Size */
#define CONFIG_SYS_PBSIZE \
(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
#ifndef __ASSEMBLY__
/*-----------------------------------------------------------------------
* Board specific extension for bd_info
*
* This structure is embedded in the global bd_info (bd_t) structure
* and can be used by the board specific code (eg board/...)
*/
struct bd_info_ext {
/* helper variable for board environment handling
*
* env_crc_valid == 0 => uninitialised
* env_crc_valid > 0 => environment crc in flash is valid
* env_crc_valid < 0 => environment crc in flash is invalid
*/
int env_crc_valid;
};
#endif
#define CONFIG_SYS_HZ 1000
/*
* AT91C_TC0_CMR is implicitly set to
* AT91C_TC_TIMER_DIV1_CLOCK
*/
#define CONFIG_SYS_HZ_CLOCK (AT91C_MASTER_CLOCK / 2)
/*
* Size of malloc() pool
*/
#define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + 128 * 1024 \
, 0x1000)
/* size in bytes reserved for initial data */
#define CONFIG_SYS_GBL_DATA_SIZE 128
#define CONFIG_STACKSIZE (32 * 1024) /* regular stack */
#define CONFIG_STACKSIZE_IRQ (4 * 1024) /* Unsure if to big or to small*/
#define CONFIG_STACKSIZE_FIQ (4 * 1024) /* Unsure if to big or to small*/
#endif
Our configuration settings:
ourboard.h
-----------------------------------------------------------------------
/* don't include some hw-specific code */
#undef CONFIG_CMD_AMBAPP
#undef CONFIG_CMD_BEDBUG /* we do not use this ... for now */
#undef CONFIG_CMD_BMP /* we don't have an lcd display */
#undef CONFIG_CMD_CDP /* not cisco discovery protocol */
#undef CONFIG_CMD_DATE /* I would like this - but no rtc support, see README
*/
#undef CONFIG_CMD_DISPLAY /* we don't have an lcd display */
#undef CONFIG_CMD_DOC /* no disk-on-chip */
#undef CONFIG_CMD_DTT /* no digital thermostat */
#undef CONFIG_CMD_EEPROM /* let build system decide */
#undef CONFIG_CMD_ELF /* only needed for vxworks */
#define CONFIG_CMD_EXT2 /* I like ext2 */
#define CONFIG_CMD_FAT /* used in some cards @ mmc for example */
#undef CONFIG_CMD_FDC /* no floppy hw */
#undef CONFIG_CMD_FDOS /* see above */
#undef CONFIG_CMD_FPGA /* not FPGA */
#undef CONFIG_CMD_HWFLOW /* see board config file */
//#undef CONFIG_CMD_I2C /* see board config file */
#undef CONFIG_CMD_IDE /* no ide storage */
#undef CONFIG_CMD_IRQ /* see board config file */
#undef CONFIG_CMD_JFFS2 /* we should set this up properly later */
#undef CONFIG_CMD_KGDB /* no jtag - no kgdb */
#undef CONFIG_CMD_LICENSE /* remember to implement license.h */
#undef CONFIG_CMD_MFSL /* no microblaze */
// remember to set up mii addresses as needed
#undef CONFIG_CMD_MMC /* see board config file */
// remember to define mtdparts related constants: partition types and so
#undef CONFIG_CMD_NAND
#undef CONFIG_CMD_ONENAND
#undef CONFIG_CMD_PCI
#undef CONFIG_CMD_PCMCIA
// remember to investigate about port I/O: may be no functions exist for
our
// board
#undef CONFIG_CMD_REISER /* not using reiser */
#undef CONFIG_CMD_SCSI /* neither scsi */
// remember to investigate about save S
#undef CONFIG_CMD_SETGETDCR /* we're in ARM */
#undef CONFIG_CMD_SNTP // remember to investigate about this
#undef CONFIG_CMD_SPI /* YES, spi is handled differently */
#undef CONFIG_CMD_UNIVERSE /* now such hardware */
//#undef CONFIG_CMD_USB /* see board config file */
//#undef CONFIG_CMD_VFD /* no such hw */
#undef CONFIG_CMD_XIMG
#undef CONFIG_CMD_MG_DISK
//Our choices & tunings:
//boot engine parameters - remember to investigate if this is needed after
the
// first "saveenv"
#define CONFIG_BOOTCOMMAND "run flashboot"
#define CONFIG_BOOTARGS "console=ttyS0,115200 mem=64M root=/dev/ram rw"
//Misc. parameters
#define CONFIG_VERSION_VARIABLE
#undef CONFIG_CMD_MTDPARTS
//Image compressions methods supported by our bootloader
#define CONFIG_BZIP2
#define CONFIG_LZMA
//NET parameters - be careful!
//Our board's Ethernet interface MAC address: unrecoverable if lost
#define CONFIG_ETHADDR 00:50:c2:3a:b7:dc
#define CONFIG_IPADDR 192.168.1.28
#define CONFIG_SERVERIP 192.168.1.250
#define CONFIG_KEEP_SERVERADDR
#define CONFIG_BOOTP_DHCP_REQUEST_DELAY 50000
#define CONFIG_IDENT_STRING " ns-nightstrategy"
//#define CONFIG_AUTO_COMPLETE see board config file
//#define CONFIG_CMDLINE_EDITING see board config file
//#define CONFIG_SYS_LONGHELP see board config file
/* deleted CFI defines - not neede anymore */
#undef CONFIG_CMD_TERMINAL
#undef CONFIG_CMD_REGINFO /* not effective in our case... */
Lazzarin Luca
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