> -Original Message-
> From: Michał Barnaś
> Sent: Wednesday, March 20, 2024 2:18 AM
> To: u-boot@lists.denx.de
> Cc: Michał Barnaś ; Dinh Nguyen
> ; Marek Vasut ; Simon Glass
> ; Simon Goldschmidt
> ; Chee, Tien Fong
> ; Tom Rini
> Subject: [PATCH v3 1/2] arm: socfpga: arria10: add option to reprogram the
> FPGA every reboot
>
> Add Kconfig that enables FPGA reprogramming with warm boot on Arria 10.
> This option allows to change the bitstream on the filesystem and apply
> changes with warm reboot without the need for a power cycle.
>
> Signed-off-by: Michał Barnaś
> ---
>
> Changes in v3:
> - Rebase on current master branch
> - Drop the TARGET_ prefix in Kconfig
> - Remove #ifdefs and use IS_ENABLED
>
> Changes in v2:
> - Rebase on current master branch
>
> arch/arm/mach-socfpga/Kconfig | 8
> arch/arm/mach-socfpga/spl_a10.c | 8 ++--
> 2 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-
> socfpga/Kconfig index 114d243812..a89bd8ca58 100644
> --- a/arch/arm/mach-socfpga/Kconfig
> +++ b/arch/arm/mach-socfpga/Kconfig
> @@ -80,6 +80,14 @@ config TARGET_SOCFPGA_ARRIA10
> imply FPGA_SOCFPGA
> imply SPL_USE_TINY_PRINTF
>
> +config SOCFPGA_ARRIA10_ALWAYS_REPROGRAM
> + bool "Always reprogram Arria 10 FPGA"
> + depends on TARGET_SOCFPGA_ARRIA10
> + help
> + Arria 10 FPGA is only programmed during the cold boot.
> + This option forces the FPGA to be reprogrammed every reboot,
> + allowing to change the bitstream and apply it with warm reboot.
> +
> config TARGET_SOCFPGA_CYCLONE5
> bool
> select TARGET_SOCFPGA_GEN5
> diff --git a/arch/arm/mach-socfpga/spl_a10.c b/arch/arm/mach-
> socfpga/spl_a10.c index 9edbbf4a29..3981d2d4f1 100644
> --- a/arch/arm/mach-socfpga/spl_a10.c
> +++ b/arch/arm/mach-socfpga/spl_a10.c
> @@ -122,7 +122,10 @@ void spl_board_init(void)
> arch_early_init_r();
>
> /* If the full FPGA is already loaded, ie.from EPCQ, config fpga pins */
> - if (is_fpgamgr_user_mode()) {
> + if
> ((IS_ENABLED(CONFIG_SOCFPGA_ARRIA10_ALWAYS_REPROGRAM) &&
> + is_regular_boot_valid()) ||
> +
> (!IS_ENABLED(CONFIG_SOCFPGA_ARRIA10_ALWAYS_REPROGRAM) &&
> + is_fpgamgr_user_mode())) {
> ret = config_pins(gd->fdt_blob, "shared");
> if (ret)
> return;
> @@ -130,7 +133,8 @@ void spl_board_init(void)
> ret = config_pins(gd->fdt_blob, "fpga");
> if (ret)
> return;
> - } else if (!is_fpgamgr_early_user_mode()) {
> + } else if
> (IS_ENABLED(CONFIG_SOCFPGA_ARRIA10_ALWAYS_REPROGRAM) ||
> +!is_fpgamgr_early_user_mode()) {
> /* Program IOSSM(early IO release) or full FPGA */
> fpgamgr_program(buf, FPGA_BUFSIZ, 0);
>
> --
> 2.44.0.291.gc1ea87d7ee-goog
Reviewed-by: Tien Fong Chee
Regards
Tien Fong
