[U-Boot] u-boot 1.1.2 boot latest powerpc based kernel?

[Shawn Jin]

Hi,

Can an old u-boot (e.g. 1.1.2) boot a latest powerpc based kernel
(e.g. 2.6.33)? I noticed that the bd_info in the latest u-boot is
different from the one in 1.1.2. The custom board with u-boot 1.1.2
passed only the first 6 parameters to a 2.4 kernel shown as below.

typedef struct bd_info {
/*======================================================================*/
	unsigned long	bi_memstart;	/* start of DRAM memory */
	unsigned long	bi_memsize;	/* size	 of DRAM memory in bytes */
	unsigned long	bi_intfreq;		/* Internal Freq, in MHz */
	unsigned long	bi_busfreq;		/* Bus Freq, in MHz */
	unsigned char	bi_enetaddr[6];	/* Ethernet adress */
	unsigned long	bi_baudrate;	/* Console Baudrate */
	unsigned long	bi_flashstart;	/* start of FLASH memory */
	unsigned long	bi_flashsize;	/* size	 of FLASH memory */
	unsigned long	bi_flashoffset; /* reserved area for startup monitor */
	unsigned long	bi_sramstart;	/* start of SRAM memory */
	unsigned long	bi_sramsize;	/* size	 of SRAM memory */
#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \
	|| defined(CONFIG_E500)
	unsigned long	bi_immr_base;	/* base of IMMR register */
#endif
<...snipped>
}

The customer does't want to upgrade u-boot. If linux drivers are
ported to the new powerpc arch, is u-boot 1.1.2 still able to boot the
new kernel? Besides the bd_info, what else the powerpc kernel expect
from u-boot?

Thanks,
-Shawn.