June 2009 - U-Boot

[U-Boot] Device tree on ppc board
by Olivier DAVID 23 Jun '09

23 Jun '09

Hi, I work on a custom board, MPC8248 based (my reference BSP was MPC8260ADS), with uboot 1.1.4 and linux 2.6.11, and works perfectly. We have to pass to linux 2.6.27, and it is just the version from which ppc and powerpc has been merged, and device tree the unique way to pass 'bdinfo'. The uboot version can't be more than 1.1.6, the linux must be 2.6.27, and I can't find the information if it's compatible. Can anybody affirm me if it's possible, and how to do it in linux 1.1.4 ? How do we change the bdinfo structure header to device tree, is there any board which uses this feature ? Thank you !

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Re: [U-Boot] MPC8360ERDK U-Boot - Broadcom Gigabit Ethernet removal
by cmfairfa＠rockwellcollins.com 23 Jun '09

23 Jun '09

PS The RX errors generated by switching from the Broadcom Ethernet chips to the National Ethernet chips are specifically RxBD_CRCERR and RxBD_NO (defined in uec.h). These errors are frame CRC error and Non-octet align errors respectively. Thanks. Christopher M. Fairfax Sr. Software Engineer Rockwell Collins +1 540-428-3344 +1 540-428-3301 cmfairfa(a)rockwellcollins.com This message contains PRIVILEGED AND PROPRIETARY INFORMATION intended solely for the use of the addressee(s) named above. Any disclosure, distribution, copying or use of the information by others is strictly prohibited. If you have received this message in error, please advise the sender by immediate reply and delete the original message. Thank you. Christopher M Fairfax/USA/RockwellCollins 06/23/2009 01:35 PM To u-boot(a)lists.denx.de cc avorontsov(a)ru.mvista.com Subject MPC8360ERDK U-Boot - Broadcom Gigabit Ethernet removal Hi, I'm trying to completely remove the 2 gigabit ethernets from my U-Boot (as they are depopulated on my target). I want to use the other 2 ethernet ports as FSL UEC0 and FSL UEC1. I've removed the UCC1 and UCC2 entries from the qe_iop_conf_tab in mpc8360erdk.c and updated the corresponding macros in MPC8360ERDK.h. The transmits seem to work. I'm able to communicate from the target to a TFTP server on a PC. However, the RX to the target is not working. I get "FSL UEC: Rx error" messages. Any ideas/suggestions as to what I need to do to get the RX to work? Also, do I need to define CFG_CMD_MII and/or CFG_MII, so that miiphy_register() is called in uec.c Here are my new macro definitions in MPC8360ERDK.h: #define CONFIG_UEC_ETH1 /* GETH1 */ #ifdef CONFIG_UEC_ETH1 #define CONFIG_SYS_UEC1_UCC_NUM 6 /* UCC7 */ #define CONFIG_SYS_UEC1_RX_CLK QE_CLK19 #define CONFIG_SYS_UEC1_TX_CLK QE_CLK20 #define CONIFG_SYS_UEC1_ETH_TYPE FAST_ETH #define CONFIG_SYS_UEC1_PHY_ADDR 1 #define CONFIG_SYS_UEC1_INTERFACE_MODE ENET_100_MII #endif #define CONFIG_UEC_ETH2 /* GETH2 */ #ifdef CONFIG_UEC_ETH2 #define CONFIG_SYS_UEC2_UCC_NUM 3 /* UCC4 */ #define CONFIG_SYS_UEC2_RX_CLK QE_CLK7 #define CONFIG_SYS_UEC2_TX_CLK QE_CLK8 #define CONIFG_SYS_UEC2_ETH_TYPE FAST_ETH #define CONFIG_SYS_UEC2_PHY_ADDR 3 #define CONFIG_SYS_UEC2_INTERFACE_MODE ENET_100_MII #endif Thanks Christopher M. Fairfax Sr. Software Engineer Rockwell Collins +1 540-428-3344 +1 540-428-3301 cmfairfa(a)rockwellcollins.com This message contains PRIVILEGED AND PROPRIETARY INFORMATION intended solely for the use of the addressee(s) named above. Any disclosure, distribution, copying or use of the information by others is strictly prohibited. If you have received this message in error, please advise the sender by immediate reply and delete the original message. Thank you.

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[U-Boot] [PATCH-ARM] Bug-fix in drivers mtd nand Makefile
by kevin.morfitt＠fearnside-systems.co.uk 23 Jun '09

23 Jun '09

The S3C2410 NAND driver source file is included in the makefile instead of the object file. Signed-off-by: Kevin Morfitt <kevin.morfitt(a)fearnside-systems.co.uk> --- drivers/mtd/nand/Makefile | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 71dd5b9..7dfbeb5 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -42,7 +42,7 @@ COBJS-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o COBJS-$(CONFIG_NAND_FSL_UPM) += fsl_upm.o COBJS-$(CONFIG_NAND_MPC5121_NFC) += mpc5121_nfc.o COBJS-$(CONFIG_NAND_NOMADIK) += nomadik.o -COBJS-$(CONFIG_NAND_S3C2410) += s3c2410_nand.c +COBJS-$(CONFIG_NAND_S3C2410) += s3c2410_nand.o COBJS-$(CONFIG_NAND_S3C64XX) += s3c64xx.o COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o endif -- 1.6.0.6

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[U-Boot] Add WATCHDOG_REFRESH() inside nand write and read
by Giulio Benetti 23 Jun '09

23 Jun '09

Add WATCHDOG_REFRESH() inside nand write and read -- Giulio Benetti R&D Micronova srl

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[U-Boot] [PATCH v4 6/6] MX31: Add NAND SPL boot support to i.MX31 PDK board.
by Ulrich Gerster 23 Jun '09

23 Jun '09

Hello, I'm trying to boot from my board with a i.MX31 and small page (512Byte) NAND Flash. I applied the patches in v4 which introduce the CONFIG_PRELOADER macro. The only example I found where this macro is used is in part 6/6 of the patch. There a separate folder structure in nand_spl for the PDK Board is created. Could you describe the mode of operation of the CONFIG_PRELOADER macro and in particular NAND SPL? I'm not sure how to use this functionality in my case. Thank you very mutch, Ulrich Gerster

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[U-Boot] MPC8360ERDK U-Boot - Broadcom Gigabit Ethernet removal
by cmfairfa＠rockwellcollins.com 23 Jun '09

23 Jun '09

Hi, I'm trying to completely remove the 2 gigabit ethernets from my U-Boot (as they are depopulated on my target). I want to use the other 2 ethernet ports as FSL UEC0 and FSL UEC1. I've removed the UCC1 and UCC2 entries from the qe_iop_conf_tab in mpc8360erdk.c and updated the corresponding macros in MPC8360ERDK.h. The transmits seem to work. I'm able to communicate from the target to a TFTP server on a PC. However, the RX to the target is not working. I get "FSL UEC: Rx error" messages. Any ideas/suggestions as to what I need to do to get the RX to work? Also, do I need to define CFG_CMD_MII and/or CFG_MII, so that miiphy_register() is called in uec.c Here are my new macro definitions in MPC8360ERDK.h: #define CONFIG_UEC_ETH1 /* GETH1 */ #ifdef CONFIG_UEC_ETH1 #define CONFIG_SYS_UEC1_UCC_NUM 6 /* UCC7 */ #define CONFIG_SYS_UEC1_RX_CLK QE_CLK19 #define CONFIG_SYS_UEC1_TX_CLK QE_CLK20 #define CONIFG_SYS_UEC1_ETH_TYPE FAST_ETH #define CONFIG_SYS_UEC1_PHY_ADDR 1 #define CONFIG_SYS_UEC1_INTERFACE_MODE ENET_100_MII #endif #define CONFIG_UEC_ETH2 /* GETH2 */ #ifdef CONFIG_UEC_ETH2 #define CONFIG_SYS_UEC2_UCC_NUM 3 /* UCC4 */ #define CONFIG_SYS_UEC2_RX_CLK QE_CLK7 #define CONFIG_SYS_UEC2_TX_CLK QE_CLK8 #define CONIFG_SYS_UEC2_ETH_TYPE FAST_ETH #define CONFIG_SYS_UEC2_PHY_ADDR 3 #define CONFIG_SYS_UEC2_INTERFACE_MODE ENET_100_MII #endif Thanks Christopher M. Fairfax Sr. Software Engineer Rockwell Collins +1 540-428-3344 +1 540-428-3301 cmfairfa(a)rockwellcollins.com This message contains PRIVILEGED AND PROPRIETARY INFORMATION intended solely for the use of the addressee(s) named above. Any disclosure, distribution, copying or use of the information by others is strictly prohibited. If you have received this message in error, please advise the sender by immediate reply and delete the original message. Thank you.

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[U-Boot] V3 Zoom hw reset
by Tom Rix 23 Jun '09

23 Jun '09

The i2c patch is a cleaned up version of the one I RFC-ed to the list earlier. It addresses Nishanth's concerns by using the kernel's algorithm and by making the major parameters overridable by a board config. Jean's request for no weak function is addressed by this being done only with #defines. I have reverified on the hw listed in the commit. The twl4030 patch I don't think anyone had a problem with. The twl4030 hw reset has been generalized. After analyzing beagle schematics, I believe this can be used by anyone with supporting hw. So the function stays in power.c and the #ifdef's are removed.

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[U-Boot] Mips, U-Boot and ramdisk
by Robert Hodaszi 23 Jun '09

23 Jun '09

Hello, Can anybody help me? I'm working on this for a few days... I'm working on a custom developed board, with Au1200, and I'd like to use the U-Boot as bootloader. I ported the U-Boot to my board, made a Linux kernel image, and a ramdisk image. To try out the configuration, I burn the U-Boot image into the flash (it works well), and after I start the board, it download the kernel image and the ramdisk image through TFTP. I'm using the following two commands: tftp 81000000 uImage tftp 81FFFFC0 uRamdisk I set the bootargs variable to: root=\dev\ram (I used: set bootargs root=/dev/ram) But when I'm trying to start the Linux with the bootm 81000000 81FFFFC0 the Linux can't find the ramdisk. It write out: Initrd not found or empty - disabling initrd But when I set its address into the bootargs (so the bootargs: root=/dev/ram rd_start=0x82000000 rd_size=0x191160), it works well; it successfully find the image, and can mount it. How does the U-Boot pass the ramdisk information? It sets some kind of environment variables in the bootm.c. But it doesn't work for me. Why? (I could use the bootargs solution in this case, but I'm afraid, it can't pass other arguments too, like ethernet address, etc.) Thanks in advance! Best regards, Robert Hodaszi

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[U-Boot] bootelf and vxWorks
by Cem Eliguzel 23 Jun '09

23 Jun '09

Dear all, I see that do_bootelf method is located at cmd_elf.c and this file also includes do_bootvx method. Why is bootelf command is associated with vxWorks? Regards, Cem

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[U-Boot] udelay
by Cem Eliguzel 23 Jun '09

23 Jun '09

Dear all, Looking at the several udelay implementations for several different architectures (an example is cpu/arm926ejs/davinci/timer.c), it seemed to me that udelay implementations ( and other timer functions ) does not handle timestamp overflow. This might cause unexpected timer problems. By the way, do we have API documentation for such u-boot methods? Regards, Cem

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