On Tue, Aug 11, 2020 at 04:01:10PM +0800, Chee Hong Ang wrote: > Generate spl/u-boot-splx4.sfp which consist of 4 SPL images required > for booting up Cyclone5/Arria10. > > For Cyclone5 using NAND flash image layout for 128 KB memory blocks, > 'make u-boot-with-nand-spl.sfp' to generate spl/u-boot-nand-splx4.sfp > which contains four 128KB SPL images (each 64KB SPL is followed by > 64KB of zero-padding). > > Signed-off-by: Chee Hong Ang <chee.hong....@intel.com> > --- > Makefile | 11 +++++++---- > 1 file changed, 7 insertions(+), 4 deletions(-) > > diff --git a/Makefile b/Makefile > index 4483a9b..f4631f1 100644 > --- a/Makefile > +++ b/Makefile > @@ -1582,8 +1582,9 @@ u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE > ifneq ($(CONFIG_ARCH_SOCFPGA),) > quiet_cmd_socboot = SOCBOOT $@ > cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ > - spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ > - u-boot.img > $@ || rm -f $@ > + spl/u-boot-spl.sfp \ > + spl/u-boot-spl.sfp > spl/u-boot-splx4.sfp ; \ > + cat spl/u-boot-splx4.sfp u-boot.img > $@ || rm -f $@ > u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE > $(call if_changed,socboot) > > @@ -1592,8 +1593,10 @@ cmd_socnandboot = dd if=/dev/zero > of=spl/u-boot-spl.pad bs=64 count=1024 ; \ > cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ > spl/u-boot-spl.sfp spl/u-boot-spl.pad \ > spl/u-boot-spl.sfp spl/u-boot-spl.pad \ > - spl/u-boot-spl.sfp spl/u-boot-spl.pad \ > - u-boot.img > $@ || rm -f $@ spl/u-boot-spl.pad > + spl/u-boot-spl.sfp \ > + spl/u-boot-spl.pad > spl/u-boot-nand-splx4.sfp ; \ > + cat spl/u-boot-nand-splx4.sfp u-boot.img > $@ || \ > + rm -f $@ spl/u-boot-spl.pad > u-boot-with-nand-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE > $(call if_changed,socnandboot)
It's not immediately clear to me why we're doing this here, rather than instructing the user to write the file 4 times when programming. On TI platforms, even on NAND, for forever there's been multiple locations the ROM will check for the loader. Is there a reason to not handle this at that level? -- Tom
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