[U-Boot] Booting on RK3399

[Mark Kettenis]

> From: Simon Glass <sjg at chromium.org>
> Date: Thu, 3 Jan 2019 16:25:36 -0700
> 
> Hi Mark,
> 
> On Thu, 3 Jan 2019 at 04:23, Mark Kettenis <mark.kettenis at xs4all.nl> wrote:
> >
> > > From: Simon Glass <sjg at chromium.org>
> > > Date: Wed, 2 Jan 2019 20:37:45 -0700
> > >
> > > > Haven't tested flashing eMMC with rkdeveloptool myself, but that
> > > > should work on the firefly as well.
> > > >
> > > > Another complication as that the serial console speed defaults to
> > > > 1500000 which isn't supported by all serial-to-USB chips and frankly
> > >
> > > Yes I seem to have one that supports this, so this is fine.
> >
> > Just be aware that you'll need to patch TF-A to configure the serial
> > port to 1500000 as well.  Probably just a matter of changing
> > RK3399_BAUDRATE in plat/rockchip/rk3399/rk3399_def.h.
> 
> OK, did that.
> Here are the results:
> 
> v2018.01
> U-Boot SPL board init"Synchronous Abort" handler, esr 0x00070000
> ELR:     e2030000a891a6e4
> "Synchronous Abort" handler, esr 0x
> 
> v2018.03
> U-Boot SPL board init"Synchronous Abort" handler, esr 0xffff0000
> elr: 00000000ff8ca6fc lr : ffff0000ffffa7bc
> "Synchronous Abort" handler, esr 0x
> 
> v2018.05
> U-Boot SPL board init"Synchronous Abort" handler, esr 0x00070000
> elr: 00000000ff8ca7a4 lr : 00000000ff8ca864
> "Synchronous Abort" handler, esr 0x
> 
> v2018.07
> U-Boot SPL board init"Synchronous Abort" handler, esr 0xff000000
> elr: 00000000ff8ca8f0 lr : 00000000ff8ca9b0
> "Synchronous Abort" handler, esr 0x
> 
> v2018.09
> U-Boot SPL board init
> (no more output)
> 
> mainline:
> U-Boot SPL board init
> (no more output)
> 
> 
> It died when I call printf() at the start of board_init_r(). If I put
> printf() anywhere inside spl_relocate_stack_gd() it is happy. Also
> putc() works OK. So perhaps the code that calls that function is doing
> something wrong? Some sort of stack problem?

Strange.  This is what I get

U-Boot SPL board init
Trying to boot from MMC1
NOTICE:  BL31: v2.0(debug):2.0
NOTICE:  BL31: Built : 12:46:24, Oct 21 2018
INFO:    GICv3 with legacy support detected. ARM GICV3 driver initialized in EL3
INFO:    plat_rockchip_pmu_init(1593): pd status 3e
INFO:    BL31: Initializing runtime services
INFO:    BL31: cortex_a53: CPU workaround for 855873 was applied
INFO:    BL31: Preparing for EL3 exit to normal world
INFO:    Entry point address = 0x200000
INFO:    SPSR = 0x3c9


U-Boot 2019.01-rc2-00127-g08337cd648-dirty (Jan 04 2019 - 19:31:14 +0100)

Model: Firefly-RK3399 Board
...


That is *with* the dts diff (see below) though.  Without that diff, it
hangs after:

U-Boot SPL board init
Trying to boot from MMC2


So obviously that diff is needed to boot properly from uSD.  I'll send
out a git patch with a proper commit messages in a bit.

Cheers,

Mark


diff --git a/arch/arm/dts/rk3399-firefly.dts b/arch/arm/dts/rk3399-firefly.dts
index be350866a7..f90e7e88db 100644
--- a/arch/arm/dts/rk3399-firefly.dts
+++ b/arch/arm/dts/rk3399-firefly.dts
@@ -15,7 +15,7 @@
 
 	chosen {
 		stdout-path = &uart2;
-		u-boot,spl-boot-order = &sdhci, &sdmmc;
+		u-boot,spl-boot-order = "same-as-spl", &sdhci, &sdmmc;
 	};
 
 	backlight: backlight {