On Mon, Aug 02, 2021 at 03:30:20PM -0600, Simon Glass wrote:
Hi Pali,
On Mon, 2 Aug 2021 at 15:26, Pali Rohár pali@kernel.org wrote:>
On Monday 02 August 2021 15:23:22 Simon Glass wrote:
() Hi Pali,
On Mon, 2 Aug 2021 at 15:18, Pali Rohár pali@kernel.org wrote:
On Monday 02 August 2021 15:14:30 Simon Glass wrote:
Hi Pali,
On Mon, 2 Aug 2021 at 15:09, Pali Rohár pali@kernel.org wrote:
On Monday 02 August 2021 16:55:34 Tom Rini wrote: > On Sun, Aug 01, 2021 at 02:25:16PM +0200, Pali Rohár wrote: > > > Hello! > > > > Option CONFIG_SPL_SATA_SUPPORT=y is currently broken in u-boot master > > branch. If I try to enable it for A38x platform I'm getting following > > compiler error: > > > > LD spl/u-boot-spl > > arm-linux-gnueabihf-ld.bfd: drivers/ata/ahci.o: in function `ahci_probe_scsi_pci': > > drivers/ata/ahci.c:1205: undefined reference to `dm_pci_map_bar' > > arm-linux-gnueabihf-ld.bfd: drivers/ata/ahci.c:1215: undefined reference to `dm_pci_read_config16' > > arm-linux-gnueabihf-ld.bfd: drivers/ata/ahci.c:1216: undefined reference to `dm_pci_read_config16' > > arm-linux-gnueabihf-ld.bfd: drivers/ata/ahci.c:1220: undefined reference to `dm_pci_map_bar' > > make[1]: *** [scripts/Makefile.spl:512: spl/u-boot-spl] Error 1 > > make: *** [Makefile:1977: spl/u-boot-spl] Error 2 > > > > You can reproduce it by running following commands: > > > > $ make turris_omnia_defconfig > > $ echo CONFIG_SPL_SATA_SUPPORT=y >> .config > > $ make CROSS_COMPILE=arm-linux-gnueabihf- > > > > I workaround it by following patch: > > > > diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c > > index d4047c04f5d0..6bad72e4cfa4 100644 > > --- a/drivers/ata/ahci.c > > +++ b/drivers/ata/ahci.c > > @@ -1196,7 +1196,7 @@ int ahci_probe_scsi(struct udevice *ahci_dev, ulong base) > > return 0; > > } > > > > -#ifdef CONFIG_DM_PCI > > +#if CONFIG_IS_ENABLED(DM_PCI) > > int ahci_probe_scsi_pci(struct udevice *ahci_dev) > > { > > ulong base; > > > > It fixed this particular problem. So it looks like that CONFIG_DM_PCI is > > defined also when building SPL even when it is not enabled for SPL. > > Whole PCI is disabled in SPL. > > > > But then I got another compile error: > > > > LD spl/u-boot-spl > > arm-linux-gnueabihf-ld.bfd: drivers/ata/ahci-pci.o: in function `ahci_pci_probe': > > drivers/ata/ahci-pci.c:21: undefined reference to `ahci_probe_scsi_pci' > > make[1]: *** [scripts/Makefile.spl:512: spl/u-boot-spl] Error 1 > > make: *** [Makefile:1977: spl/u-boot-spl] Error 2 > > > > Seems that u-boot is trying to compile and link ahci-pci.o into SPL > > binary even when it is not enabled nor used. PCI is completed disabled > > in SPL for this case. > > > > I workaround it by putting whole ahci-pci.c file into one big #idef: > > > > diff --git a/drivers/ata/ahci-pci.c b/drivers/ata/ahci-pci.c > > index b1d231e0f9e1..34afebd2f87f 100644 > > --- a/drivers/ata/ahci-pci.c > > +++ b/drivers/ata/ahci-pci.c > > @@ -9,6 +9,8 @@ > > #include <dm.h> > > #include <pci.h> > > > > +#if CONFIG_IS_ENABLED(DM_PCI) > > + > > static int ahci_pci_bind(struct udevice *dev) > > { > > struct udevice *scsi_dev; > > @@ -42,3 +44,5 @@ static struct pci_device_id ahci_pci_supported[] = { > > }; > > > > U_BOOT_PCI_DEVICE(ahci_pci, ahci_pci_supported); > > + > > +#endif > > > > And then finally U-Boot produced final target image u-boot-spl.kwb: > > > > LD spl/u-boot-spl > > OBJCOPY spl/u-boot-spl-nodtb.bin > > SYM spl/u-boot-spl.sym > > CAT spl/u-boot-spl-dtb.bin > > COPY spl/u-boot-spl.bin > > MKIMAGE u-boot-spl.kwb > > > > So this looks like a bug in Kconfig or Makefile dependences that build > > system is trying to compile and link also files which should not be > > linked at all. > > Yes, it's a missing dependency in Kconfig. You need to enable SPL_DM > and then quite possibly SPL_OF_CONTROL (I forget if that was a hard > dependency on the main conversion or not) on the platform.
CONFIG_SPL_DM=y is already enabled
CONFIG_SPL_PCI ?
It seems that pci-uclass.c is not being built for SPL.
CONFIG_SPL_PCI is not enabled.
But why should be CONFIG_SPL_PCI needed for SATA? As above my patches show no PCI is required for SATA...
I suggest investigating what is calling those functions you mention...
If you look at ahci_probe_scsi_pci() it is bracketed by:
#ifdef CONFIG_DM_PCI
Perhaps it should be:
#if CONFIG_IS_ENABLED(DM_PCI)
so it takes account of SPL?
And this is exactly what I did in first patch attempt.
Then how about changing the Makefile rule to:
obj-$(CONFIG_$(SPL_TPL_)AHCI_PCI) += ahci-pci.o
But there is no SPL_AHCI_PCI nor TPL_AHCI_PCI. I really want to know in addition to how SATA is hooked up on this board what the expected truth table of U-Boot and SPL CONFIG options is expected to be.