[U-Boot] U-BOOT porting to PORTUX 920T

[U-Boot] U-BOOT porting to PORTUX 920T

[Luca Lazzarin]

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@atmel.com> and Rick Bronson
 * <rick@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

[U-Boot] U-BOOT porting to PORTUX 920T

[Wolfgang Denk]

Dear Luca Lazzarin,

In message <d6d92be31003130734l18eb785cl5cf9c54fd4a61f00@mail.gmail.com> you wrote:
>
> This is the "latest" version of our porting to Taskit PORTUX 920T mini-pc.

Please do not post some random files here. If you want to contribute
to the projet, then please read the instructions and post a proper
patch. Make sure to clean up your code so it meets Coding Style
requirements etc. Please see here for instructions:

http://www.denx.de/wiki/U-Boot/CodingStyle
http://www.denx.de/wiki/U-Boot/Patches

Thanks.


Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
[Braddock:] Mr. Churchill, you are drunk.
[Churchill:] And you madam, are ugly.  But I shall be sober tomorrow.

[U-Boot] U-BOOT porting to PORTUX 920T

[Achim Ehrlich]

Hello Luca,

> 
> 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!
> 

Nice to hear, that things are working now for you. Testing your changes is not so easy, as you didn't provide a proper patch to apply (and especially with which tree are you working?).

Do you have any intention to post your board file to the mailing list, when it is ready? I guess it is not.

Kind regards

Achim

-- 
product manager

email:aehrlich at taskit.de 
Tel.: ++49 30 611295-25
Fax: ++49 30 611295-11

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taskit GmbH
Seelenbinderstr. 33 | D-12555 Berlin
web:http://www.taskit.de
Amtsgericht Charlottenburg: 93HRB39014
Managing director: Thorsten Raulfs
--