April 2008 - U-Boot

[U-Boot-Users] [PATCH 0/3] AT91CAP9ADK: Move CONFIG_CMD_NAND to Makefile
by Jean-Christophe PLAGNIOL-VILLARD 01 Apr '08

01 Apr '08

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj(a)jcrosoft.com> diff --git a/board/atmel/at91cap9adk/Makefile b/board/atmel/at91cap9adk/Makefile index 359fdab..3961030 100644 --- a/board/atmel/at91cap9adk/Makefile +++ b/board/atmel/at91cap9adk/Makefile @@ -25,10 +25,12 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).a -COBJS := at91cap9adk.o led.o nand.o +COBJS-y += at91cap9adk.o +COBJS-y += led.o +COBJS-$(CONFIG_CMD_NAND) += nand.o -SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(COBJS)) +SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) SOBJS := $(addprefix $(obj),$(SOBJS)) $(LIB): $(obj).depend $(OBJS) $(SOBJS) diff --git a/board/atmel/at91cap9adk/nand.c b/board/atmel/at91cap9adk/nand.c index 1277973..c72b024 100644 --- a/board/atmel/at91cap9adk/nand.c +++ b/board/atmel/at91cap9adk/nand.c @@ -29,8 +29,6 @@ #include <asm/arch/gpio.h> #include <asm/arch/at91_pio.h> -#ifdef CONFIG_CMD_NAND - #include <nand.h> /* @@ -70,4 +68,3 @@ int board_nand_init(struct nand_chip *nand) return 0; } -#endif -- 1.5.4.1

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[U-Boot-Users] How to do DUART loopback test on MPC8541?
by wylg＠sina.com 01 Apr '08

01 Apr '08

hello,all I'm new to u-boot, now I am working on MPC8541, I use DUART1 as my serial port, I want to do loopback test on DUART1, but it isn't working, so I want to know how to do loopback test on DUART1.Can you help me? below is my processing steps: 1) set UCLR1=0x00 (close DLAB) 2) set UIER1=0x00 (disable interrupt) 3) set UMCR1=0x12 (allow loopback) 4) set UTHR1=0x5a (sending a char) 5) get the loopback value from URBR1 (but I always get value 0) best regards leo ------------------------------------------------------------------- 每天一晒每天一个幸运儿,你的梦想KFC来买单( http://d1.sina.com.cn/sina/limeng3/mail_zhuiyu/2008/mail_zhuiyu_20080205.ht… ) =================================================================== 注册新浪2G免费邮箱（http://mail.sina.com.cn/）

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[U-Boot-Users] [PATCH] DHCP request fix for Windows Server 2003
by Aras Vaichas 01 Apr '08

01 Apr '08

This patch fixes a problem I had with a client who was getting DHCP request retries with our network device and their DHCP server. It turns out that their Windows Server 2003 DHCP server couldn't handle fast DHCP transactions and it just "forgets" some of them. I verified this with my own Windows Server 2003 install and a network analyser (Ethereal/Wireshark). It seems that a small, lean 200MHz embedded system is too fast for a Windows Server 2003 system running on a 2GHz+ machine. Go figure. Adding a small (50ms) delay fixes this problem nicely and it only adds a small amount of overhead in comparison to the DHCP request timeouts and retries. NOTE: This patch is ported from my old 1.1.3 U-Boot system. I have not retested it with 1.3.2 U-Boot against Windows Server 2003. The patch is very small and simple, so I don't think should be necessary. I can retest this functionality if you wish, but it will require me to reinstall Windows Server and set everything up again. Aras ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ * added option CONFIG_BOOTP_DHCP_REQUEST_DELAY. This provides an optional delay before sending "DHCP Request" in net/bootp.c. Required to overcome interoperability problems with Windows Server 200x DHCP server when U-Boot client responds too fast for server to handle.

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