| Message ID | 1345481154-7050-17-git-send-email-trini@ti.com |
|---|---|
| State | Superseded |
| Delegated to: | Tom Rini |
| Headers | show |
Hi Tom, Thanks for the patch. On Monday 20 August 2012 10:15 PM, Tom Rini wrote: > Add a board-specific README that documents how to write u-boot.ais to > the SPI found on this board. > > Changes-series: 2 > - Add > > Signed-off-by: Tom Rini <trini@ti.com> > --- > > board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ > 1 file changed, 53 insertions(+) > create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm > > diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm > new file mode 100644 > index 0000000..382b718 > --- /dev/null > +++ b/board/davinci/da8xxevm/README.da850_am18xxevm > @@ -0,0 +1,53 @@ > +Summary > +======= > +The README is for the boot procedure used for the LogicPD AM1808 EVM. > + > +The board is booted in three stages. The initial bootloader which executes > +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The > +RBL initialises the memory and the SPI controller and reads the AIS image > +starting at block 0. This image can contain both the SPL and U-Boot > +binaries. > + > +AIS is an image format defined by TI for the images that are to be > +loaded to memory by the RBL. The image is divided into a series of > +sections and the image's entry point is specified. Each section comes > +with meta data like the target address the section is to be copied to > +and the size of the section, which is used by the RBL to load the > +image. At the end of the image the RBL jumps to the image entry > +point. > + > +The secondary stage bootloader(spl) which is loaded by the RBL then loads > +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot > +entry point. > + > + > +Compilation > +=========== > +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build > +the u-boot.ais file that needs to be written to SPI flash. > + > + > +Flashing the images to Nand > +=========================== > +The AIS image can be written to SPI flash using the following commands. > +Assuming that the network is configured and enabled and the u-boot.ais file > +is tftp'able. > + > +U-Boot > sf probe 0 > +U-Boot > sf erase 0 +320000 > +U-Boot > tftp u-boot.ais > +U-Boot > sf write c0700000 0 $filesize > + Is this procedure to be done in Nand boot mode ? Thx, --Prabhakar > + > +Recovery > +======== > + > +In the case of a "bricked" board, you need to use the TI tools found > +here[1] to write a UBL file and u-boot.bin. Once the system is running > +again from these tools a good u-boot.ais may be re-written to SPI flash. > + > + > +Links > +===== > +[1] > + http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L137 >
On 08/20/2012 10:09 PM, Prabhakar Lad wrote: > Hi Tom, > > Thanks for the patch. > > On Monday 20 August 2012 10:15 PM, Tom Rini wrote: >> Add a board-specific README that documents how to write u-boot.ais to >> the SPI found on this board. >> >> Changes-series: 2 >> - Add >> >> Signed-off-by: Tom Rini <trini@ti.com> >> --- >> >> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ >> 1 file changed, 53 insertions(+) >> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm >> >> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm >> new file mode 100644 >> index 0000000..382b718 >> --- /dev/null >> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm >> @@ -0,0 +1,53 @@ >> +Summary >> +======= >> +The README is for the boot procedure used for the LogicPD AM1808 EVM. >> + >> +The board is booted in three stages. The initial bootloader which executes >> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The >> +RBL initialises the memory and the SPI controller and reads the AIS image >> +starting at block 0. This image can contain both the SPL and U-Boot >> +binaries. >> + >> +AIS is an image format defined by TI for the images that are to be >> +loaded to memory by the RBL. The image is divided into a series of >> +sections and the image's entry point is specified. Each section comes >> +with meta data like the target address the section is to be copied to >> +and the size of the section, which is used by the RBL to load the >> +image. At the end of the image the RBL jumps to the image entry >> +point. >> + >> +The secondary stage bootloader(spl) which is loaded by the RBL then loads >> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot >> +entry point. >> + >> + >> +Compilation >> +=========== >> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build >> +the u-boot.ais file that needs to be written to SPI flash. >> + >> + >> +Flashing the images to Nand >> +=========================== >> +The AIS image can be written to SPI flash using the following commands. >> +Assuming that the network is configured and enabled and the u-boot.ais file >> +is tftp'able. >> + >> +U-Boot > sf probe 0 >> +U-Boot > sf erase 0 +320000 >> +U-Boot > tftp u-boot.ais >> +U-Boot > sf write c0700000 0 $filesize >> + > Is this procedure to be done in Nand boot mode ? This board, as far as I know (which isn't much) doesn't use NAND, just SPI. The USE_NAND section of da850evm.h doesn't seem reachable today at least.
On Tuesday 21 August 2012 09:04 PM, Tom Rini wrote: > On 08/20/2012 10:09 PM, Prabhakar Lad wrote: >> Hi Tom, >> >> Thanks for the patch. >> >> On Monday 20 August 2012 10:15 PM, Tom Rini wrote: >>> Add a board-specific README that documents how to write u-boot.ais to >>> the SPI found on this board. >>> >>> Changes-series: 2 >>> - Add >>> >>> Signed-off-by: Tom Rini <trini@ti.com> >>> --- >>> >>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ >>> 1 file changed, 53 insertions(+) >>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm >>> >>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm >>> new file mode 100644 >>> index 0000000..382b718 >>> --- /dev/null >>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm >>> @@ -0,0 +1,53 @@ >>> +Summary >>> +======= >>> +The README is for the boot procedure used for the LogicPD AM1808 EVM. >>> + >>> +The board is booted in three stages. The initial bootloader which executes >>> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The >>> +RBL initialises the memory and the SPI controller and reads the AIS image >>> +starting at block 0. This image can contain both the SPL and U-Boot >>> +binaries. >>> + >>> +AIS is an image format defined by TI for the images that are to be >>> +loaded to memory by the RBL. The image is divided into a series of >>> +sections and the image's entry point is specified. Each section comes >>> +with meta data like the target address the section is to be copied to >>> +and the size of the section, which is used by the RBL to load the >>> +image. At the end of the image the RBL jumps to the image entry >>> +point. >>> + >>> +The secondary stage bootloader(spl) which is loaded by the RBL then loads >>> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot >>> +entry point. >>> + >>> + >>> +Compilation >>> +=========== >>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build >>> +the u-boot.ais file that needs to be written to SPI flash. >>> + >>> + >>> +Flashing the images to Nand >>> +=========================== >>> +The AIS image can be written to SPI flash using the following commands. >>> +Assuming that the network is configured and enabled and the u-boot.ais file >>> +is tftp'able. >>> + >>> +U-Boot > sf probe 0 >>> +U-Boot > sf erase 0 +320000 >>> +U-Boot > tftp u-boot.ais >>> +U-Boot > sf write c0700000 0 $filesize >>> + >> Is this procedure to be done in Nand boot mode ? > > This board, as far as I know (which isn't much) doesn't use NAND, just > SPI. The USE_NAND section of da850evm.h doesn't seem reachable today at > least. > But the title for above says 'Flashing the images to Nand' ? It should be SPI. Thx, --Prabhakar
On Tue, Aug 21, 2012 at 9:46 PM, Prabhakar Lad <prabhakar.lad@ti.com> wrote: > On Tuesday 21 August 2012 09:04 PM, Tom Rini wrote: >> On 08/20/2012 10:09 PM, Prabhakar Lad wrote: >>> Hi Tom, >>> >>> Thanks for the patch. >>> >>> On Monday 20 August 2012 10:15 PM, Tom Rini wrote: >>>> Add a board-specific README that documents how to write u-boot.ais to >>>> the SPI found on this board. >>>> >>>> Changes-series: 2 >>>> - Add >>>> >>>> Signed-off-by: Tom Rini <trini@ti.com> >>>> --- >>>> >>>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ >>>> 1 file changed, 53 insertions(+) >>>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm >>>> >>>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm >>>> new file mode 100644 >>>> index 0000000..382b718 >>>> --- /dev/null >>>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm >>>> @@ -0,0 +1,53 @@ >>>> +Summary >>>> +======= >>>> +The README is for the boot procedure used for the LogicPD AM1808 EVM. >>>> + >>>> +The board is booted in three stages. The initial bootloader which executes >>>> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The >>>> +RBL initialises the memory and the SPI controller and reads the AIS image >>>> +starting at block 0. This image can contain both the SPL and U-Boot >>>> +binaries. >>>> + >>>> +AIS is an image format defined by TI for the images that are to be >>>> +loaded to memory by the RBL. The image is divided into a series of >>>> +sections and the image's entry point is specified. Each section comes >>>> +with meta data like the target address the section is to be copied to >>>> +and the size of the section, which is used by the RBL to load the >>>> +image. At the end of the image the RBL jumps to the image entry >>>> +point. >>>> + >>>> +The secondary stage bootloader(spl) which is loaded by the RBL then loads >>>> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot >>>> +entry point. >>>> + >>>> + >>>> +Compilation >>>> +=========== >>>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build >>>> +the u-boot.ais file that needs to be written to SPI flash. >>>> + >>>> + >>>> +Flashing the images to Nand >>>> +=========================== >>>> +The AIS image can be written to SPI flash using the following commands. >>>> +Assuming that the network is configured and enabled and the u-boot.ais file >>>> +is tftp'able. >>>> + >>>> +U-Boot > sf probe 0 >>>> +U-Boot > sf erase 0 +320000 >>>> +U-Boot > tftp u-boot.ais >>>> +U-Boot > sf write c0700000 0 $filesize >>>> + >>> Is this procedure to be done in Nand boot mode ? >> >> This board, as far as I know (which isn't much) doesn't use NAND, just >> SPI. The USE_NAND section of da850evm.h doesn't seem reachable today at >> least. >> > But the title for above says 'Flashing the images to Nand' ? It should > be SPI. You are correct, thanks.
[cc'd Manjunath Hadli] Hi Tom, On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com> wrote: > Add a board-specific README that documents how to write u-boot.ais to > the SPI found on this board. > > Changes-series: 2 > - Add > > Signed-off-by: Tom Rini <trini@ti.com> > --- > > board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ > 1 file changed, 53 insertions(+) > create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm > > diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm > new file mode 100644 > index 0000000..382b718 > --- /dev/null > +++ b/board/davinci/da8xxevm/README.da850_am18xxevm > @@ -0,0 +1,53 @@ > +Summary > +======= > +The README is for the boot procedure used for the LogicPD AM1808 EVM. > + > +The board is booted in three stages. The initial bootloader which executes > +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The > +RBL initialises the memory and the SPI controller and reads the AIS image > +starting at block 0. This image can contain both the SPL and U-Boot > +binaries. > + > +AIS is an image format defined by TI for the images that are to be > +loaded to memory by the RBL. The image is divided into a series of > +sections and the image's entry point is specified. Each section comes > +with meta data like the target address the section is to be copied to > +and the size of the section, which is used by the RBL to load the > +image. At the end of the image the RBL jumps to the image entry > +point. > + > +The secondary stage bootloader(spl) which is loaded by the RBL then loads > +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot > +entry point. > + > + > +Compilation > +=========== > +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For the Logic PD board you will need 'make da850evm'. See [1] Regards, Christian [1] http://lists.denx.de/pipermail/u-boot/2012-February/117082.html > +the u-boot.ais file that needs to be written to SPI flash. > + > + > +Flashing the images to Nand > +=========================== > +The AIS image can be written to SPI flash using the following commands. > +Assuming that the network is configured and enabled and the u-boot.ais file > +is tftp'able. > + > +U-Boot > sf probe 0 > +U-Boot > sf erase 0 +320000 > +U-Boot > tftp u-boot.ais > +U-Boot > sf write c0700000 0 $filesize > + > + > +Recovery > +======== > + > +In the case of a "bricked" board, you need to use the TI tools found > +here[1] to write a UBL file and u-boot.bin. Once the system is running > +again from these tools a good u-boot.ais may be re-written to SPI flash. > + > + > +Links > +===== > +[1] > + http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L137 > -- > 1.7.9.5 > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot
Hi, On Wednesday 22 August 2012 01:43 PM, Christian Riesch wrote: > [cc'd Manjunath Hadli] > > Hi Tom, > > On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com> wrote: >> Add a board-specific README that documents how to write u-boot.ais to >> the SPI found on this board. >> >> Changes-series: 2 >> - Add >> >> Signed-off-by: Tom Rini <trini@ti.com> >> --- >> >> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ >> 1 file changed, 53 insertions(+) >> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm >> >> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm >> new file mode 100644 >> index 0000000..382b718 >> --- /dev/null >> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm >> @@ -0,0 +1,53 @@ >> +Summary >> +======= >> +The README is for the boot procedure used for the LogicPD AM1808 EVM. >> + >> +The board is booted in three stages. The initial bootloader which executes >> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The >> +RBL initialises the memory and the SPI controller and reads the AIS image >> +starting at block 0. This image can contain both the SPL and U-Boot >> +binaries. >> + >> +AIS is an image format defined by TI for the images that are to be >> +loaded to memory by the RBL. The image is divided into a series of >> +sections and the image's entry point is specified. Each section comes >> +with meta data like the target address the section is to be copied to >> +and the size of the section, which is used by the RBL to load the >> +image. At the end of the image the RBL jumps to the image entry >> +point. >> + >> +The secondary stage bootloader(spl) which is loaded by the RBL then loads >> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot >> +entry point. >> + >> + >> +Compilation >> +=========== >> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build > > da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For > the Logic PD board you will need 'make da850evm'. See [1] > May be having a common README for am18x and omap-l138 would be good ? Thx, --Prabhakar > Regards, Christian > > > [1] http://lists.denx.de/pipermail/u-boot/2012-February/117082.html > >> +the u-boot.ais file that needs to be written to SPI flash. >> + >> + >> +Flashing the images to Nand >> +=========================== >> +The AIS image can be written to SPI flash using the following commands. >> +Assuming that the network is configured and enabled and the u-boot.ais file >> +is tftp'able. >> + >> +U-Boot > sf probe 0 >> +U-Boot > sf erase 0 +320000 >> +U-Boot > tftp u-boot.ais >> +U-Boot > sf write c0700000 0 $filesize >> + >> + >> +Recovery >> +======== >> + >> +In the case of a "bricked" board, you need to use the TI tools found >> +here[1] to write a UBL file and u-boot.bin. Once the system is running >> +again from these tools a good u-boot.ais may be re-written to SPI flash. >> + >> + >> +Links >> +===== >> +[1] >> + http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L137 >> -- >> 1.7.9.5 >> >> _______________________________________________ >> U-Boot mailing list >> U-Boot@lists.denx.de >> http://lists.denx.de/mailman/listinfo/u-boot > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot >
Hi Prabhakar, On Wed, Aug 22, 2012 at 11:07 AM, Prabhakar Lad <prabhakar.lad@ti.com> wrote: > Hi, > > On Wednesday 22 August 2012 01:43 PM, Christian Riesch wrote: >> [cc'd Manjunath Hadli] >> >> Hi Tom, >> >> On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com> wrote: >>> Add a board-specific README that documents how to write u-boot.ais to >>> the SPI found on this board. >>> >>> Changes-series: 2 >>> - Add >>> >>> Signed-off-by: Tom Rini <trini@ti.com> >>> --- >>> >>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ >>> 1 file changed, 53 insertions(+) >>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm >>> >>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm >>> new file mode 100644 >>> index 0000000..382b718 >>> --- /dev/null >>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm >>> @@ -0,0 +1,53 @@ >>> +Summary >>> +======= >>> +The README is for the boot procedure used for the LogicPD AM1808 EVM. >>> + >>> +The board is booted in three stages. The initial bootloader which executes >>> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The >>> +RBL initialises the memory and the SPI controller and reads the AIS image >>> +starting at block 0. This image can contain both the SPL and U-Boot >>> +binaries. >>> + >>> +AIS is an image format defined by TI for the images that are to be >>> +loaded to memory by the RBL. The image is divided into a series of >>> +sections and the image's entry point is specified. Each section comes >>> +with meta data like the target address the section is to be copied to >>> +and the size of the section, which is used by the RBL to load the >>> +image. At the end of the image the RBL jumps to the image entry >>> +point. >>> + >>> +The secondary stage bootloader(spl) which is loaded by the RBL then loads >>> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot >>> +entry point. >>> + >>> + >>> +Compilation >>> +=========== >>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build >> >> da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For >> the Logic PD board you will need 'make da850evm'. See [1] >> > May be having a common README for am18x and omap-l138 would be good ? > This is a good idea. But just to make it clear: Afaik the da850evm configuration works for both the AM1808 and the OMAP-L138 board from LogicPD (at least I am using it with the AM1808 experimenter's kit from LogicPD). The da850_am18xxevm is for the Spectrum Digital board. At least this is what I understood from the discussion with Manjunath Hadli in the in the u-boot mailing list thread I cited earlier. I hope this is correct, I haven't got other boards than the AM1808 board from LogicPD to test. Regards, Christian
Hi Christian, On Wednesday 22 August 2012 02:47 PM, Christian Riesch wrote: > Hi Prabhakar, > > On Wed, Aug 22, 2012 at 11:07 AM, Prabhakar Lad <prabhakar.lad@ti.com> wrote: >> Hi, >> >> On Wednesday 22 August 2012 01:43 PM, Christian Riesch wrote: >>> [cc'd Manjunath Hadli] >>> >>> Hi Tom, >>> >>> On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com> wrote: >>>> Add a board-specific README that documents how to write u-boot.ais to >>>> the SPI found on this board. >>>> >>>> Changes-series: 2 >>>> - Add >>>> >>>> Signed-off-by: Tom Rini <trini@ti.com> >>>> --- >>>> >>>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ >>>> 1 file changed, 53 insertions(+) >>>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm >>>> >>>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm >>>> new file mode 100644 >>>> index 0000000..382b718 >>>> --- /dev/null >>>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm >>>> @@ -0,0 +1,53 @@ >>>> +Summary >>>> +======= >>>> +The README is for the boot procedure used for the LogicPD AM1808 EVM. >>>> + >>>> +The board is booted in three stages. The initial bootloader which executes >>>> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The >>>> +RBL initialises the memory and the SPI controller and reads the AIS image >>>> +starting at block 0. This image can contain both the SPL and U-Boot >>>> +binaries. >>>> + >>>> +AIS is an image format defined by TI for the images that are to be >>>> +loaded to memory by the RBL. The image is divided into a series of >>>> +sections and the image's entry point is specified. Each section comes >>>> +with meta data like the target address the section is to be copied to >>>> +and the size of the section, which is used by the RBL to load the >>>> +image. At the end of the image the RBL jumps to the image entry >>>> +point. >>>> + >>>> +The secondary stage bootloader(spl) which is loaded by the RBL then loads >>>> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot >>>> +entry point. >>>> + >>>> + >>>> +Compilation >>>> +=========== >>>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build >>> >>> da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For >>> the Logic PD board you will need 'make da850evm'. See [1] >>> >> May be having a common README for am18x and omap-l138 would be good ? >> > > This is a good idea. > > But just to make it clear: Afaik the da850evm configuration works for > both the AM1808 and the OMAP-L138 board from LogicPD (at least I am > using it with the AM1808 experimenter's kit from LogicPD). The > da850_am18xxevm is for the Spectrum Digital board. At least this is > what I understood from the discussion with Manjunath Hadli in the in > the u-boot mailing list thread I cited earlier. I hope this is > correct, I haven't got other boards than the AM1808 board from LogicPD > to test. > AFAIK the difference between AM1808 and OMAP-L138 is that, 1: The AM1808 has EEPROM and stores the MAC address in it where as OMAP-L138 stores the MAC address in SPI flash. 2: The revision number differs for both. Thx, --Prabhakar > Regards, Christian >
Hi Prabhakar, On Wednesday, August 22, 2012, Prabhakar Lad wrote: > Hi Christian, > > On Wednesday 22 August 2012 02:47 PM, Christian Riesch wrote: > > Hi Prabhakar, > > > > On Wed, Aug 22, 2012 at 11:07 AM, Prabhakar Lad <prabhakar.lad@ti.com<javascript:;>> > wrote: > >> Hi, > >> > >> On Wednesday 22 August 2012 01:43 PM, Christian Riesch wrote: > >>> [cc'd Manjunath Hadli] > >>> > >>> Hi Tom, > >>> > >>> On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com <javascript:;>> > wrote: > >>>> Add a board-specific README that documents how to write u-boot.ais to > >>>> the SPI found on this board. > >>>> > >>>> Changes-series: 2 > >>>> - Add > >>>> > >>>> Signed-off-by: Tom Rini <trini@ti.com <javascript:;>> > >>>> --- > >>>> > >>>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 > +++++++++++++++++++++++++ > >>>> 1 file changed, 53 insertions(+) > >>>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm > >>>> > >>>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm > b/board/davinci/da8xxevm/README.da850_am18xxevm > >>>> new file mode 100644 > >>>> index 0000000..382b718 > >>>> --- /dev/null > >>>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm > >>>> @@ -0,0 +1,53 @@ > >>>> +Summary > >>>> +======= > >>>> +The README is for the boot procedure used for the LogicPD AM1808 EVM. > >>>> + > >>>> +The board is booted in three stages. The initial bootloader which > executes > >>>> +upon reset is the Rom Boot Loader(RBL) which sits in the internal > ROM. The > >>>> +RBL initialises the memory and the SPI controller and reads the AIS > image > >>>> +starting at block 0. This image can contain both the SPL and U-Boot > >>>> +binaries. > >>>> + > >>>> +AIS is an image format defined by TI for the images that are to be > >>>> +loaded to memory by the RBL. The image is divided into a series of > >>>> +sections and the image's entry point is specified. Each section comes > >>>> +with meta data like the target address the section is to be copied to > >>>> +and the size of the section, which is used by the RBL to load the > >>>> +image. At the end of the image the RBL jumps to the image entry > >>>> +point. > >>>> + > >>>> +The secondary stage bootloader(spl) which is loaded by the RBL then > loads > >>>> +the u-boot from a predefined location in SPI to DDR and jumps to the > u-boot > >>>> +entry point. > >>>> + > >>>> + > >>>> +Compilation > >>>> +=========== > >>>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This > will build > >>> > >>> da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For > >>> the Logic PD board you will need 'make da850evm'. See [1] > >>> > >> May be having a common README for am18x and omap-l138 would be good ? > >> > > > > This is a good idea. > > > > But just to make it clear: Afaik the da850evm configuration works for > > both the AM1808 and the OMAP-L138 board from LogicPD (at least I am > > using it with the AM1808 experimenter's kit from LogicPD). The > > da850_am18xxevm is for the Spectrum Digital board. At least this is > > what I understood from the discussion with Manjunath Hadli in the in > > the u-boot mailing list thread I cited earlier. I hope this is > > correct, I haven't got other boards than the AM1808 board from LogicPD > > to test. > > > AFAIK the difference between AM1808 and OMAP-L138 is that, > 1: The AM1808 has EEPROM and stores the MAC address in it where as > OMAP-L138 stores the MAC address in SPI flash. Are you sure? I don't see that in datasheets/schematics. Christian > 2: The revision number differs for both. > > Thx, > --Prabhakar > > > > Regards, Christian > > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de <javascript:;> > http://lists.denx.de/mailman/listinfo/u-boot >
On Wed, Aug 22, 2012 at 10:13:02AM +0200, Christian Riesch wrote: > [cc'd Manjunath Hadli] > > Hi Tom, > > On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com> wrote: > > Add a board-specific README that documents how to write u-boot.ais to > > the SPI found on this board. > > > > Changes-series: 2 > > - Add > > > > Signed-off-by: Tom Rini <trini@ti.com> > > --- > > > > board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ > > 1 file changed, 53 insertions(+) > > create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm > > > > diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm > > new file mode 100644 > > index 0000000..382b718 > > --- /dev/null > > +++ b/board/davinci/da8xxevm/README.da850_am18xxevm > > @@ -0,0 +1,53 @@ > > +Summary > > +======= > > +The README is for the boot procedure used for the LogicPD AM1808 EVM. > > + > > +The board is booted in three stages. The initial bootloader which executes > > +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The > > +RBL initialises the memory and the SPI controller and reads the AIS image > > +starting at block 0. This image can contain both the SPL and U-Boot > > +binaries. > > + > > +AIS is an image format defined by TI for the images that are to be > > +loaded to memory by the RBL. The image is divided into a series of > > +sections and the image's entry point is specified. Each section comes > > +with meta data like the target address the section is to be copied to > > +and the size of the section, which is used by the RBL to load the > > +image. At the end of the image the RBL jumps to the image entry > > +point. > > + > > +The secondary stage bootloader(spl) which is loaded by the RBL then loads > > +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot > > +entry point. > > + > > + > > +Compilation > > +=========== > > +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build > > da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For > the Logic PD board you will need 'make da850evm'. See [1] This is funny since the Logic PD board is also called the "AM1808 Evaluation Module" rather than a "Davinci" EVM. So the README needs a little more work :) I'll update and rename.
On Wed, Aug 22, 2012 at 03:35:30PM +0530, Prabhakar Lad wrote: > Hi Christian, > > On Wednesday 22 August 2012 02:47 PM, Christian Riesch wrote: > > Hi Prabhakar, > > > > On Wed, Aug 22, 2012 at 11:07 AM, Prabhakar Lad <prabhakar.lad@ti.com> wrote: > >> Hi, > >> > >> On Wednesday 22 August 2012 01:43 PM, Christian Riesch wrote: > >>> [cc'd Manjunath Hadli] > >>> > >>> Hi Tom, > >>> > >>> On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com> wrote: > >>>> Add a board-specific README that documents how to write u-boot.ais to > >>>> the SPI found on this board. > >>>> > >>>> Changes-series: 2 > >>>> - Add > >>>> > >>>> Signed-off-by: Tom Rini <trini@ti.com> > >>>> --- > >>>> > >>>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ > >>>> 1 file changed, 53 insertions(+) > >>>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm > >>>> > >>>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm > >>>> new file mode 100644 > >>>> index 0000000..382b718 > >>>> --- /dev/null > >>>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm > >>>> @@ -0,0 +1,53 @@ > >>>> +Summary > >>>> +======= > >>>> +The README is for the boot procedure used for the LogicPD AM1808 EVM. > >>>> + > >>>> +The board is booted in three stages. The initial bootloader which executes > >>>> +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The > >>>> +RBL initialises the memory and the SPI controller and reads the AIS image > >>>> +starting at block 0. This image can contain both the SPL and U-Boot > >>>> +binaries. > >>>> + > >>>> +AIS is an image format defined by TI for the images that are to be > >>>> +loaded to memory by the RBL. The image is divided into a series of > >>>> +sections and the image's entry point is specified. Each section comes > >>>> +with meta data like the target address the section is to be copied to > >>>> +and the size of the section, which is used by the RBL to load the > >>>> +image. At the end of the image the RBL jumps to the image entry > >>>> +point. > >>>> + > >>>> +The secondary stage bootloader(spl) which is loaded by the RBL then loads > >>>> +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot > >>>> +entry point. > >>>> + > >>>> + > >>>> +Compilation > >>>> +=========== > >>>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build > >>> > >>> da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For > >>> the Logic PD board you will need 'make da850evm'. See [1] > >>> > >> May be having a common README for am18x and omap-l138 would be good ? > >> > > > > This is a good idea. > > > > But just to make it clear: Afaik the da850evm configuration works for > > both the AM1808 and the OMAP-L138 board from LogicPD (at least I am > > using it with the AM1808 experimenter's kit from LogicPD). The > > da850_am18xxevm is for the Spectrum Digital board. At least this is > > what I understood from the discussion with Manjunath Hadli in the in > > the u-boot mailing list thread I cited earlier. I hope this is > > correct, I haven't got other boards than the AM1808 board from LogicPD > > to test. > > > AFAIK the difference between AM1808 and OMAP-L138 is that, > 1: The AM1808 has EEPROM and stores the MAC address in it where as > OMAP-L138 stores the MAC address in SPI flash. I don't think this is right. I believe on the Logic PD board it's stored in SPI (I know mine isn't stored in EEPROM). I think the answer is that the OMAP-L138 has DSP and the AM part does not. This would mean that Logic PD gets the most re-use out of the base-board possible :)
CC'ed Sekhar On Wednesday 22 August 2012 08:39 PM, Christian Riesch wrote: > Hi Prabhakar, > > On Wednesday, August 22, 2012, Prabhakar Lad wrote: > > Hi Christian, > > On Wednesday 22 August 2012 02:47 PM, Christian Riesch wrote: > > Hi Prabhakar, > > > > On Wed, Aug 22, 2012 at 11:07 AM, Prabhakar Lad > <prabhakar.lad@ti.com <javascript:;>> wrote: > >> Hi, > >> > >> On Wednesday 22 August 2012 01:43 PM, Christian Riesch wrote: > >>> [cc'd Manjunath Hadli] > >>> > >>> Hi Tom, > >>> > >>> On Mon, Aug 20, 2012 at 6:45 PM, Tom Rini <trini@ti.com > <javascript:;>> wrote: > >>>> Add a board-specific README that documents how to write > u-boot.ais to > >>>> the SPI found on this board. > >>>> > >>>> Changes-series: 2 > >>>> - Add > >>>> > >>>> Signed-off-by: Tom Rini <trini@ti.com <javascript:;>> > >>>> --- > >>>> > >>>> board/davinci/da8xxevm/README.da850_am18xxevm | 53 > +++++++++++++++++++++++++ > >>>> 1 file changed, 53 insertions(+) > >>>> create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm > >>>> > >>>> diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm > b/board/davinci/da8xxevm/README.da850_am18xxevm > >>>> new file mode 100644 > >>>> index 0000000..382b718 > >>>> --- /dev/null > >>>> +++ b/board/davinci/da8xxevm/README.da850_am18xxevm > >>>> @@ -0,0 +1,53 @@ > >>>> +Summary > >>>> +======= > >>>> +The README is for the boot procedure used for the LogicPD > AM1808 EVM. > >>>> + > >>>> +The board is booted in three stages. The initial bootloader > which executes > >>>> +upon reset is the Rom Boot Loader(RBL) which sits in the > internal ROM. The > >>>> +RBL initialises the memory and the SPI controller and reads > the AIS image > >>>> +starting at block 0. This image can contain both the SPL and > U-Boot > >>>> +binaries. > >>>> + > >>>> +AIS is an image format defined by TI for the images that are to be > >>>> +loaded to memory by the RBL. The image is divided into a series of > >>>> +sections and the image's entry point is specified. Each > section comes > >>>> +with meta data like the target address the section is to be > copied to > >>>> +and the size of the section, which is used by the RBL to load the > >>>> +image. At the end of the image the RBL jumps to the image entry > >>>> +point. > >>>> + > >>>> +The secondary stage bootloader(spl) which is loaded by the RBL > then loads > >>>> +the u-boot from a predefined location in SPI to DDR and jumps > to the u-boot > >>>> +entry point. > >>>> + > >>>> + > >>>> +Compilation > >>>> +=========== > >>>> +To build a SPI-bootable image, run 'make da850_am18xxevm'. > This will build > >>> > >>> da850_am18xxevm is for the Spectrum Digital EVM for the AM1808. For > >>> the Logic PD board you will need 'make da850evm'. See [1] > >>> > >> May be having a common README for am18x and omap-l138 would be > good ? > >> > > > > This is a good idea. > > > > But just to make it clear: Afaik the da850evm configuration works for > > both the AM1808 and the OMAP-L138 board from LogicPD (at least I am > > using it with the AM1808 experimenter's kit from LogicPD). The > > da850_am18xxevm is for the Spectrum Digital board. At least this is > > what I understood from the discussion with Manjunath Hadli in the in > > the u-boot mailing list thread I cited earlier. I hope this is > > correct, I haven't got other boards than the AM1808 board from LogicPD > > to test. > > > AFAIK the difference between AM1808 and OMAP-L138 is that, > 1: The AM1808 has EEPROM and stores the MAC address in it where as > OMAP-L138 stores the MAC address in SPI flash. > > > Are you sure? I don't see that in datasheets/schematics. > Can you help here ? Thx, --Prabhakar > Christian > > > > 2: The revision number differs for both. > > Thx, > --Prabhakar > > > > > > > Regards, Christian > > > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de <javascript:;> > http://lists.denx.de/mailman/listinfo/u-boot >
diff --git a/board/davinci/da8xxevm/README.da850_am18xxevm b/board/davinci/da8xxevm/README.da850_am18xxevm new file mode 100644 index 0000000..382b718 --- /dev/null +++ b/board/davinci/da8xxevm/README.da850_am18xxevm @@ -0,0 +1,53 @@ +Summary +======= +The README is for the boot procedure used for the LogicPD AM1808 EVM. + +The board is booted in three stages. The initial bootloader which executes +upon reset is the Rom Boot Loader(RBL) which sits in the internal ROM. The +RBL initialises the memory and the SPI controller and reads the AIS image +starting at block 0. This image can contain both the SPL and U-Boot +binaries. + +AIS is an image format defined by TI for the images that are to be +loaded to memory by the RBL. The image is divided into a series of +sections and the image's entry point is specified. Each section comes +with meta data like the target address the section is to be copied to +and the size of the section, which is used by the RBL to load the +image. At the end of the image the RBL jumps to the image entry +point. + +The secondary stage bootloader(spl) which is loaded by the RBL then loads +the u-boot from a predefined location in SPI to DDR and jumps to the u-boot +entry point. + + +Compilation +=========== +To build a SPI-bootable image, run 'make da850_am18xxevm'. This will build +the u-boot.ais file that needs to be written to SPI flash. + + +Flashing the images to Nand +=========================== +The AIS image can be written to SPI flash using the following commands. +Assuming that the network is configured and enabled and the u-boot.ais file +is tftp'able. + +U-Boot > sf probe 0 +U-Boot > sf erase 0 +320000 +U-Boot > tftp u-boot.ais +U-Boot > sf write c0700000 0 $filesize + + +Recovery +======== + +In the case of a "bricked" board, you need to use the TI tools found +here[1] to write a UBL file and u-boot.bin. Once the system is running +again from these tools a good u-boot.ais may be re-written to SPI flash. + + +Links +===== +[1] + http://processors.wiki.ti.com/index.php/Serial_Boot_and_Flash_Loading_Utility_for_OMAP-L137
Add a board-specific README that documents how to write u-boot.ais to the SPI found on this board. Changes-series: 2 - Add Signed-off-by: Tom Rini <trini@ti.com> --- board/davinci/da8xxevm/README.da850_am18xxevm | 53 +++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 board/davinci/da8xxevm/README.da850_am18xxevm