[U-Boot] [PATCH v6 00/10] add support for atheros ath79 based SOCs

[Marek Vasut]

On Saturday, January 16, 2016 at 02:15:27 PM, Wills Wang wrote:
> On Saturday, January 16, 2016 01:26 PM, Marek Vasut wrote:
> > On Monday, January 04, 2016 at 12:06:17 PM, Wills Wang wrote:
> >> These series of patch add support for atheros ath79 based SOCs in
> >> u-boot, at the present moment it's just available for ar933x and
> >> qca953x chip.
> >> 
> >> Changes in v6:
> >> - Remove useless "else"
> >> - Move ar933x as separate patch
> >> - Add get_bootstrap in reset.c
> >> - Use map_physmem instead of KSEG1ADDR
> >> - Add arch_cpu_init for detect SOC type for early
> >> - Define magic value in ddr.c
> >> - Remove wait loop in putc and getc
> >> - Use map_physmem instead of KSEG1ADDR
> >> - Add rrw_delay in ath79_spi_priv for more accurate timing
> >> - Remove ath79_spi_delay
> >> - Calculate delay in ath79_spi_set_speed
> >> - Convert SZ_XXX into hex in ap121.h
> >> - Remove useless CONFIG_SYS_INIT_SP_OFFSET in ap121.h
> >> - Add board_early_init_f for DDR and pin initialization
> >> - Select UART and SPI in ap121_defconfig
> >> - Add support for qca953x
> > 
> > I wanted to try this patchset, so I picked [1], since I didn't feel like
> > fishing out patches from the list. Especially since this wasn't sent as
> > a series, but as separate patches, which makes things annoying.
> > 
> > The [1] does not even compile, which is surprising. I would expect that
> > if you submit patches, you would at least compile-test them. Sigh. I
> > needed this patch:
> > 
> > ---8<---
> > diff --git a/arch/mips/mach-ath79/cpu.c b/arch/mips/mach-ath79/cpu.c
> > index 2952679..140c65c 100644
> > --- a/arch/mips/mach-ath79/cpu.c
> > +++ b/arch/mips/mach-ath79/cpu.c
> > @@ -9,8 +9,8 @@
> > 
> >   #include <asm/io.h>
> >   #include <asm/addrspace.h>
> >   #include <asm/types.h>
> > 
> > -#include <asm/arch/ath79.h>
> > -#include <asm/arch/ar71xx_regs.h>
> > +#include <mach/ath79.h>
> > +#include <mach/ar71xx_regs.h>
> > 
> >   struct ath79_soc_desc {
> >   
> >          enum ath79_soc_type soc;
> > 
> > diff --git a/arch/mips/mach-ath79/reset.c b/arch/mips/mach-ath79/reset.c
> > index 410b900..fe32d80 100644
> > --- a/arch/mips/mach-ath79/reset.c
> > +++ b/arch/mips/mach-ath79/reset.c
> > @@ -9,7 +9,7 @@
> > 
> >   #include <asm/io.h>
> >   #include <asm/addrspace.h>
> >   #include <asm/types.h>
> > 
> > -#include <asm/arch/ath79.h>
> > +#include <mach/ath79.h>
> > 
> >   #include <mach/ar71xx_regs.h>
> >   
> >   void _machine_restart(void)
> > 
> > --->8---
> 
> Marek, you can try my repository at
> https://github.com/willswang/u-boot-ath79,
> I have fixed the compiling issue about headers.
> I'm very sorry about this compiling error, my work tree have a residual
> symbol
> link between arch/mips/include/asm/arch and
> arch/mips/mach-ath79/include/mach.
> it was not removed when i executed "make clean" to rebuild,  so, my
> compiling
> didn't discover this problem before this. now i clone this remote branch
> into a new
> location and find this issue.

You should do git clean -fdx to zap everything before doing the rebuild and 
repost. This way, you can be sure that you have no residual stuff in your tree.

Also, if make clean doesn't remove objects , there is some other problem which
needs attention.

> > Once I managed to fix things, I compiled ap121. I tried booting it on
> > arduino yun (ar9331), but it hung in start.S in setup_c0_status . If I
> > comment this out, it hangs in lowlevel_init, right at the beginning.
> > That's where I gave up.

What about this one? Did you ever boot-test these patches ? I can probably 
understand why setup_c0_status might hang, but I don't quite understand why
would lowlevel_init hang so early.

> > [1] http://git.denx.de/?p=u-boot/u-boot-
> > mips.git;a=shortlog;h=refs/heads/mips_ath79_v6
> > 
> > Best regards,
> > Marek Vasut

Best regards,
Marek Vasut