On Thu, 2024-05-23 at 15:08 -0500, Jon Humphreys wrote:
> Martyn Welch <martyn.we...@collabora.com> writes:
> 
> > From: Sjoerd Simons <sjo...@collabora.com>
> > 
> > Provide config fragments to enable USB host as well as USB gadget
> > and DFU
> > support for a53 and r5. This relevant fragment is included into the
> > am62x EVM a53 defconfig. For the r5, due to the smaller available
> > size,
> > the config fragment also disables support for persistent storage to
> > free
> > up space for USB support. This fragment needs to be included is DFU
> > booting is desired.
> > 
> > The CONFIG_DFU_SF option is placed in the defconfig rather than the
> > fragment as this is known not to be supported on all boards that
> > can
> > support DFU.
> > 
> > Signed-off-by: Sjoerd Simons <sjo...@collabora.com>
> > Signed-off-by: Martyn Welch <martyn.we...@collabora.com>
> > ---
> > Changes in v5:
> > - Switch to config fragment for a53 most DFU configuration
> > 
> > Changes in v4:
> > - Move R5 dfu config to a config fragment rather then a full
> > defconfig
> > - Don't enable XHCI for the R5 SPL, unneeded
> > 
> > Changes in v3:
> > - Run savedefconfig to adjust to more recent u-boot
> > 
> > Changes in v2:
> > - Create a seperate defconfig for R5
> > 
> > 
> > 
> >  configs/am62x_a53_usbdfu.config | 30
> > ++++++++++++++++++++++++++++++
> >  configs/am62x_evm_a53_defconfig |  2 ++
> >  configs/am62x_r5_usbdfu.config  | 28 ++++++++++++++++++++++++++++
> >  3 files changed, 60 insertions(+)
> >  create mode 100644 configs/am62x_a53_usbdfu.config
> >  create mode 100644 configs/am62x_r5_usbdfu.config
> > 
> > diff --git a/configs/am62x_a53_usbdfu.config
> > b/configs/am62x_a53_usbdfu.config
> > new file mode 100644
> > index 0000000000..3a19cf2328
> > --- /dev/null
> > +++ b/configs/am62x_a53_usbdfu.config
> > @@ -0,0 +1,29 @@
> > +CONFIG_SYS_MALLOC_LEN=0x2000000
> > +CONFIG_SPL_ENV_SUPPORT=y
> > +CONFIG_SPL_RAM_SUPPORT=y
> > +CONFIG_SPL_RAM_DEVICE=y
> > +CONFIG_SPL_USB_GADGET=y
> > +CONFIG_SPL_DFU=y
> > +CONFIG_CMD_DFU=y
> > +CONFIG_CMD_USB=y
> > +CONFIG_SYSCON=y
> > +CONFIG_SPL_SYSCON=y
> > +CONFIG_DFU_MMC=y
> > +CONFIG_DFU_RAM=y
> > +CONFIG_SYS_DFU_DATA_BUF_SIZE=0x5000
> > +CONFIG_SYS_DFU_MAX_FILE_SIZE=0x800000
> > +CONFIG_USB=y
> > +CONFIG_DM_USB_GADGET=y
> > +CONFIG_SPL_DM_USB_GADGET=y
> > +CONFIG_USB_XHCI_HCD=y
> > +CONFIG_USB_XHCI_DWC3=y
> > +CONFIG_USB_DWC3=y
> > +CONFIG_USB_DWC3_GENERIC=y
> > +CONFIG_SPL_USB_DWC3_GENERIC=y
> > +CONFIG_SPL_USB_DWC3_AM62=y
> > +CONFIG_USB_DWC3_AM62=y
> > +CONFIG_USB_GADGET=y
> > +CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments"
> > +CONFIG_USB_GADGET_VENDOR_NUM=0x0451
> > +CONFIG_USB_GADGET_PRODUCT_NUM=0x6165
> > +CONFIG_USB_GADGET_DOWNLOAD=y
> > diff --git a/configs/am62x_evm_a53_defconfig
> > b/configs/am62x_evm_a53_defconfig
> > index 6c708dcb05..16294a6a79 100644
> > --- a/configs/am62x_evm_a53_defconfig
> > +++ b/configs/am62x_evm_a53_defconfig
> > @@ -68,6 +68,7 @@ CONFIG_SPL_OF_TRANSLATE=y
> >  CONFIG_CLK=y
> >  CONFIG_SPL_CLK=y
> >  CONFIG_CLK_TI_SCI=y
> > +CONFIG_DFU_SF=y
> >  CONFIG_DMA_CHANNELS=y
> >  CONFIG_TI_K3_NAVSS_UDMA=y
> >  CONFIG_TI_SCI_PROTOCOL=y
> > @@ -111,3 +112,5 @@ CONFIG_SPL_SYSRESET=y
> >  CONFIG_SYSRESET_TI_SCI=y
> >  CONFIG_FS_FAT_MAX_CLUSTSIZE=16384
> >  CONFIG_EFI_SET_TIME=y
> > +
> > +#include <configs/am62x_a53_usbdfu.config>
> > diff --git a/configs/am62x_r5_usbdfu.config
> > b/configs/am62x_r5_usbdfu.config
> > new file mode 100644
> > index 0000000000..772bb2ab93
> > --- /dev/null
> > +++ b/configs/am62x_r5_usbdfu.config
> > @@ -0,0 +1,28 @@
> > +CONFIG_SPL_ENV_SUPPORT=y
> > +CONFIG_SYSCON=y
> > +CONFIG_SPL_SYSCON=y
> > +CONFIG_SYS_DFU_DATA_BUF_SIZE=0x5000
> > +CONFIG_MISC=y
> > +CONFIG_USB=y
> > +CONFIG_DM_USB_GADGET=y
> > +CONFIG_SPL_DM_USB_GADGET=y
> > +CONFIG_USB_DWC3=y
> > +CONFIG_USB_DWC3_GENERIC=y
> > +CONFIG_SPL_USB_DWC3_GENERIC=y
> > +CONFIG_SPL_USB_DWC3_AM62=y
> > +CONFIG_USB_GADGET=y
> > +CONFIG_SPL_USB_GADGET=y
> > +CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments"
> > +CONFIG_USB_GADGET_VENDOR_NUM=0x0451
> > +CONFIG_USB_GADGET_PRODUCT_NUM=0x6165
> > +CONFIG_USB_GADGET_DOWNLOAD=y
> > +CONFIG_SPL_DFU=y
> > +# CONFIG_SPL_MMC is not set
> > +# CONFIG_SPL_FS_FAT is not set
> > +# CONFIG_SPL_LIBDISK_SUPPORT is not set
> > +# CONFIG_SPL_SPI is not set
> > +# CONFIG_SPL_SYS_MALLOC is not set
> > +# CONFIG_CMD_GPT is not set
> > +# CONFIG_CMD_MMC is not set
> > +# CONFIG_CMD_FAT is not set
> > +# CONFIG_MMC_SDHCI is not set
> > -- 
> > 2.43.0
> 
> Hi all, it appears that this patch breaks OSPI DFU on the board.  In
> particular, changing the CONFIG_SYS_DFU_DATA_BUF_SIZE seems to be the
> culprit.
> 
> I see the error as a DFU timeout when applying capsules.
> 
>   SF: Detected s28hs512t with page size 256 Bytes, erase size 256
> KiB, total 64 MiB
>   ############jedec_spi_nor flash@0: flash operation timed out
>   #DFU write failed
> 

I'm not seeing this failure using the `-next` branch from yesterday
(2f96033923).

I've attempted to use both the `uboot-capsule.bin` produced with and
without the DFU config enabled whilst booting the SK-AM62 via DFU and
from an SD card. I seem to be consistently getting the following:

=> ext2ls mmc 1:1                                                    
<DIR>       4096 .                                                   
<DIR>       4096 ..                                                  
<DIR>      16384 lost+found                                          
         1132791 uboot-capsule.bin                                   
=> load mmc 1:1 ${loadaddr} /uboot-capsule.bin                       
1132791 bytes read in 57 ms (19 MiB/s)                               
=> efidebug capsule update ${loadaddr}                               
** File not found ubootefi.var **                                    
Failed to load EFI variables                                         
** Unable to write file ubootefi.var **                              
Failed to persist EFI variables                                      
** Unable to write file ubootefi.var **                              
Failed to persist EFI variables                                      
** Unable to write file ubootefi.var **                              
Failed to persist EFI variables                                      
** Unable to write file ubootefi.var **                              
Failed to persist EFI variables                                      
** Unable to write file ubootefi.var **                              
Failed to persist EFI variables                                      
SF: Detected s28hs512t with page size 256 Bytes, erase size 256 KiB,
total 64 Mi
B                                                                    
########################################################             
** Unable to write file ubootefi.var **                              
Failed to persist EFI variables                                      
=>

TBH, I'm not sure if this is good or bad at this point, but I'm not
seeing the error that you reported. As can be seen above, I don't have
a `ubootefi.var` file, but then I don't boot using EFI mechanisms, so I
guess that's expected?

But then, the commands I've used above aren't applying the capsule
either right?

Martyn

> Jon

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