On Fri, 2012-12-21 at 17:59 +0800, Bo Shen wrote:
Hi Johns,
On 12/21/2012 07:53 AM, johns@msli.com wrote:
This is my first post to the list. I am using u-boot-1.3.4 in buildroot-2011.11 My device is a at91sam9g20-ek I have a patch adding: include/configs/at91sam9g20ek.h which I gather acts as a config file for u-boot.
U-Boot> help does not list mtdparts
But my bootargs does use it: bootargs=mem=64M console=ttyS0,115200 mtdparts=atmel_nand:4M(bootstrap/uboot/kernel)ro,60M(rootfs),-(data) root=/dev/mtdblock1 rw rootfstype=jffs2
This mtdparts is defined for Linux kernel NAND driver.
I had the impression there was also an interactive command-line tool for mtdparts, from the u-boot prompt.
Is there a trick to add the mtdparts command?
Yes, you need to add "#define CONFIG_CMD_MTDPARTS" in
I added this to include/configs/at91sam9g20ek.h
Now it contains: #define CONFIG_JFFS2_NAND 1 #define CONFIG_JFFS2_CMDLINE 1 #define CONFIG_CMD_JFFS2 #define CONFIG_CMD_MTDPARTS"
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