Hi, we are Enrico & Luca.

We have tried to port u-boot to a Portux920T MiniPC. It seems we are successful, in fact u-boot brings up the device with no error and can boot a linux kernel. Ethernet driver works, dhcp works and major problems are present.

The only thing we can't get right is flash programming. We are trying to use CFI flash driver that shows evident timing issues, at least in our opinion. When running saveenv more than once we get the typical "Flash not erased" error, while running cp.b (for example) does not give us any problem. Running a "bootm kerneladdr initaddr" command it frequently gives us a "No boot image - CRC error", but running it another time, without rebooting the machine, results in a successful boot. We ended up thinking that is a CFI driver bug, but we know we could easily be wrong, so we include our config in this message. Our flash chip is a AMD MIRROR S29L128N 128Mbit - AMD (Spansion) (227e) - 16MB.

P.S.: we have tried to disable buffered writing (as suggested for example in the voiceblue.h file, with no success)

/* * Ulf Samuelsson ulf@atmel.com * Rick Bronson rick@efn.org * * Configuration settings for the AT91RM9200EK board. * * See file CREDITS for list of people who contributed to this * project. * * 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 0x00003284 /* 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 */ #define CONFIG_SYS_SDRC_CR_VAL 0x2188c155 /* 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 1 #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_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

Thank you in advance for reading this mail

Enrico & Luca