Re: [U-Boot-Users] Boot Linux kernel from external HDD, connected to PCI interface.

-----Original Message----- From: Leonid

I have AMCC PPC440EP card with Silicon Image 680 PCI-IDE chip, external HDD is connected to it as IDE1 - see snapshot from Linux booting log:

The question is does u-boot itself support Silicon Image or, by other words, can I boot kernel from some partition on HDD (behind this PCI-IDE chip) and if yes - how?

Yes. Easilly. The 680 chip is a standard IDE controller.

just enable IDE support (COMMAND_IDE), and set

#define CFG_ATA_BASE_ADDR set this to BAR5 on the 0680 chip #define CFG_ATA_REG_OFFSET 0x80 #define CFG_ATA_DATA_OFFSET 0x80 #define CFG_ATA_ALT_OFFSET 0x80

Then the normal IDE commands just works