On 1/1/19 4:32 AM, Chee, Tien Fong wrote:
On Sun, 2018-12-30 at 16:47 +0100, Marek Vasut wrote:
On 12/30/18 9:13 AM, tien.fong.chee@intel.com wrote:
From: Tien Fong Chee tien.fong.chee@intel.com
Update the default configuration file to enable the necessary functionality to get the SoCFPGA loadfs driver support. This would enable the implementation of programming bitstream into FPGA from MMC.
Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com
configs/socfpga_arria10_defconfig | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/configs/socfpga_arria10_defconfig b/configs/socfpga_arria10_defconfig index 6ebda81..8158dbb 100644 --- a/configs/socfpga_arria10_defconfig +++ b/configs/socfpga_arria10_defconfig @@ -27,8 +27,16 @@ CONFIG_MTDIDS_DEFAULT="nor0=ff705000.spi.0" # CONFIG_EFI_PARTITION is not set CONFIG_DEFAULT_DEVICE_TREE="socfpga_arria10_socdk_sdmmc" CONFIG_ENV_IS_IN_MMC=y +CONFIG_SPL_ENV_SUPPORT=y CONFIG_SPL_DM=y CONFIG_SPL_DM_SEQ_ALIAS=y +CONFIG_SPL_DM_MMC=y +CONFIG_SPL_MMC_SUPPORT=y +CONFIG_SPL_EXT_SUPPORT=y +CONFIG_SPL_FAT_SUPPORT=y +CONFIG_SPL_DRIVERS_MISC_SUPPORT=y +CONFIG_FS_FAT_MAX_CLUSTSIZE=16384
This breaks systems with large FAT clusters. Why is this needed for programming the FPGA from MMC ?
This is final tuning in term of getting balance between performance and SPL image size for the socdk devkit. User can change that if they need large FAT cluster in their design, right?
I think it'd rather make sense to fix the FAT driver to avoid statically allocating those massive buffers for big clusters. I think that can be done by allocating those on stack instead ... or mallocating them.