On 06/09/16 16:00, Eric Nelson wrote:
Hi Tom,
On 09/06/2016 06:40 AM, Tom Rini wrote:
On Fri, Sep 02, 2016 at 10:53:58PM +0200, Petr Kulhavy wrote:
Another place this doesn't work (which is where it doesn't work for me) is when the console is already open and I can't easily take it away to shoot over the next stage via Y-MODEM.
Would it be possible to implement having the next stage also be sent via imx_usb_loader? ie there's examples today of doing u-boot.imx + kernel
- initrd via imx_usb_loader, so what would be needed for SPL +
u-boot.img (+ kenrel + initrd) via imx_usb_loader? Thanks!
SPL+u-boot.img could be bundled into a single image through the use of plugins which would require:
- updates to mkimage to support plugins, and
- Makefile updates to produce a third output (u-boot.imx?), and
- an update to SPL startup on i.MX to check for the plugin flag
and return to the boot ROM after startup (instead of loading U-Boot) if set.
Maybe this jumping to RBL forth and back is not needed at all. If the SPL+img was loaded as one chunk into DRAM instead of the on-chip RAM (would require DDR initialization via DCD as it happens for the IMX image) then the SPL could jump directly into the uboot image, couldn't it?
Cheers Petr