Ziyuan,
I tested this patch and it works for me with the current u-boot.git/master.
Re the EFI support. The problem was that when you compile in efi_runtime.c it breaks booting the kernel. Probably rubbing the caching system the wrong way. With this patch we are able to boot the kernel with the EFI parts compiled in. I don't believe anyone has tested the functionality of EFI wtih rk3288.
Sandy Patterson
On Thu, Jul 28, 2016 at 8:03 AM, Ziyuan Xu xzy.xu@rock-chips.com wrote:
Hi Alexander,
On 2016年07月28日 18:39, Alexander Graf wrote:
On 07/28/2016 12:13 PM, Ziyuan Xu wrote:
For ARMv7-A architecture, the valid ISB instruction is asm volatile("isb").
This patch fixes the U-Boot was stuck in invalidate_dcache_all() before booting linux kernel, which occurred on rk3288-base development board such as evb-rk3288, rock2-rk3288. And something output via console like:
=> bootz 0x2000000 0x02000000 ramdisk start = 0x00000000, ramdisk end = 0x00000000 Continuing to boot without FDT Initial value for argc=3 Final value for argc=3 using: ATAGS
Starting kernel ...Linux kernel exactly the same way(see arch/arm/include/asm/barrier.h).
Signed-off-by: Ziyuan Xu xzy.xu@rock-chips.com
Perfect! So with this, EFI support can still be in and things work fine?
I had not test EFI feature, in fact, I have no experience about it. Any progress I will promptly inform you.
Alex