Hi Bo, > -----Original Message----- > From: Bo Shen [mailto:voice.s...@gmail.com] > Sent: Thursday, August 17, 2017 10:07 PM > To: Robert Nelson <robertcnel...@gmail.com>; Vikas MANOCHA > <vikas.mano...@st.com> > Cc: U-Boot-Denx <u-boot@lists.denx.de>; Christophe PRIOUZEAU > <christophe.priouz...@st.com>; Alexandre TORGUE > <alexandre.tor...@st.com> > Subject: Re: [U-Boot] [PATCH v2 3/7] stm32: stm32f7: add spl build support > > > Hi Vikas, > Try to remove this magic (press 'c' on the keyboard when at the boot time),
It helps to select between U-Boot or OS booting. > I'd suggest to add a follow-up patch to move all the > selected SPL related configuration from "arch/arm/mach-stm32/Kconfig" under > STM32F7 to default configuration file (stm32f746- > disco_defconfig). Then if the people want just boot up u-boot itself, what > they need to do is just run "make menuconfig" and then de- > select "Activate Falcon Mode" > (SPL_OS_BOOT). Then everything will be fine. Yes, Agree. How about using "imply" instead of "select" for SPL_OS_BOOT to make it configurable. Cheers, Vikas > > Thanks. > > Best Regards, > Bo Shen > > On 08/10/2017 11:36 AM, Robert Nelson wrote: > > On Thu, Aug 10, 2017 at 1:10 PM, Vikas Manocha <vikas.mano...@st.com> wrote: > >> One other point, > >> > >> On 08/10/2017 11:07 AM, Vikas Manocha wrote: > >>> Hi Robert, > >>> > >>> On 08/10/2017 11:03 AM, Robert Nelson wrote: > >>>> Hi Vikas, > >>>> > >>>> On Sun, May 28, 2017 at 2:55 PM, Vikas Manocha <vikas.mano...@st.com> > >>>> wrote: > >>>>> This commit supports booting from stm32 internal nor flash. spl > >>>>> U-Boot initializes the sdram memory, copies next image (e.g. > >>>>> standard U-Boot) to sdram & then jumps to entry point. > >>>>> > >>>>> Here are the flash memory addresses for U-Boot-spl & standard U-Boot: > >>>>> - spl U-Boot : 0x0800_0000 > >>>>> - standard U-Boot : 0x0800_8000 > >>>> Is there another patchset missing on mainline for booting via spl? > >>> No, you just need to flash spl & next image at above mentioned addresses. > >>> By default spl expects kernel image. > >>> > >>> To boot u-boot, press keyboard character 'c'. > >>> you might need to keep on pressing 'c' it for some time as the keyboard > >>> entry acceptance & detection window is very small. > >>> > >>> Cheers, > >>> Vikas > >>> > >>>> on mainline with the stm32f746-disco board: > >>>> > >>>> U-Boot SPL 2017.09-rc1-00177-gd529124fdc (Aug 10 2017 - 12:33:35) > >>>> Trying to boot from XIP Hard fault > >>>> pc : 08008008 lr : 08000adb xPSR : 21000000 > >>>> r12 : 2004f338 r3 : 00000005 r2 : 081c0000 > >>>> r1 : ffffff9a r0 : 00000000 > >>>> Resetting CPU ... > >>>> > >>>> resetting ... > >>>> > >>>> I'm using openocd to program > >>>> > >>>> openocd -f board/stm32f7discovery.cfg \ > >>>> -c "init" \ > >>>> -c "reset init" \ > >>>> -c "flash probe 0" \ > >>>> -c "flash write_image erase ./spl/u-boot-spl.bin 0x08000000" \ > >>>> -c "flash write_image erase ./u-boot.img 0x08008000" \ > >> it should be u-boot-dtb.bin. > > Bingo! > > > > Thanks Vikas!! > > > > U-Boot SPL 2017.09-rc1-00177-gd529124fdc (Aug 10 2017 - 12:33:35) > > Trying to boot from XIP > > > > > > U-Boot 2017.09-rc1-00177-gd529124fdc (Aug 10 2017 - 12:33:35 -0500) > > > > Model: STMicroelectronics STM32F746-DISCO board > > DRAM: 8 MiB > > Flash: 1 MiB > > Using default environment > > > > In: serial@40011000 > > Out: serial@40011000 > > Err: serial@40011000 > > usr button is at LOW LEVEL > > Net: > > Warning: ethernet@40028000 (eth0) using random MAC address - > > 02:4a:de:c3:c8:80 > > eth0: ethernet@40028000 > > Hit SPACE in 3 seconds to stop autoboot. > > U-Boot > > > > > Regards, > > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
