[PATCH v3 0/7] socfpga: n5x: Update Boot Support for N5X

[Chen Huei Lok]

This patch series updates the N5X platform support:
- Consolidate ATF defconfig and simplify VAB defconfig
- Update GMAC nodes and DT register settings
- Enable CMD_MTD for MTD operations from the U-Boot shell
- Enable ISSI SPI flash support
- Migrate firewall setup to driver model and remove legacy code
- Switch to upstream Linux DT configuration
- Update SPL data save and restore implementation

Tested-on: Intel SoCFPGA N5X SoCDK hardware.

Note: This series depends on a concurrent patch series by Alif Zakuan
Yuslaimi that removes the final firewall_setup() call in spl_s10.c.
Please apply that series before this one. See the latest version at:
https://patchwork.ozlabs.org/project/uboot/cover/20260605015503.11709-1-alif.zakuan.yuslaimi@altera.com/

v2->v3:
--------
- Drop patch 4/8 (enable required configs for DDR retention): moved
  to a separate series for DDR retention support
- Patch 3: Fix CONFIG_CMD_MTD position in defconfig (between CMD_MMC
  and CMD_SPI per canonical savedefconfig ordering); drop
  CONFIG_SPL_ALTERA_SDRAM (auto-selected by Kconfig for N5X)
- Patch 4 (was 5/8): Fix CONFIG_SPI_FLASH_ISSI position in defconfig
  (before CONFIG_SPI_FLASH_SPANSION per canonical savedefconfig order)
- Patch 5 (was 6/8): Extend to fully remove firewall_setup(): delete
  firewall.c, remove firewall.o from Makefile, remove declaration and
  unused struct/macro definitions from firewall.h, drop stale include
  from spl_n5x.c
- Patch 6 (was 7/8): Fix CONFIG_OF_UPSTREAM position in defconfig
  (after CONFIG_CMD_FS_GENERIC per canonical savedefconfig ordering)

v1->v2:
--------
- Fix patch series submission
- Clean up redundant DTS override

History:
--------
[v1] https://patchwork.ozlabs.org/project/uboot/cover/20260318030034.25889-1-chen.huei.lok@altera.com/
[v2] https://patchwork.ozlabs.org/project/uboot/cover/20260428070017.16807-1-chen.huei.lok@altera.com/

Chen Huei Lok (7):
  configs: socfpga: n5x: consolidate ATF defconfig and simplify VAB
  arm: dts: socfpga: n5x: update GMAC nodes and DT register settings
  configs: socfpga: n5x: enable CMD_MTD
  configs: socfpga: n5x: enable ISSI QSPI
  arm: socfpga: n5x: switch firewall setup to driver model
  arch: arm: dts: n5x: switch to using upstream Linux DT config
  arm: socfpga: n5x: update SPL data save and restore implementation

 arch/arm/dts/Makefile                         |   3 +-
 arch/arm/dts/socfpga_n5x-u-boot.dtsi          |  55 ++++++++-
 arch/arm/dts/socfpga_n5x_socdk-u-boot.dtsi    |  18 +--
 arch/arm/mach-socfpga/Makefile                |   1 -
 arch/arm/mach-socfpga/firewall.c              | 107 ------------------
 arch/arm/mach-socfpga/include/mach/firewall.h |  69 -----------
 arch/arm/mach-socfpga/spl_n5x.c               |  31 ++++-
 configs/socfpga_n5x_atf_defconfig             |  89 ---------------
 configs/socfpga_n5x_defconfig                 |  26 +++--
 configs/socfpga_n5x_vab_defconfig             |  90 +--------------
 10 files changed, 112 insertions(+), 377 deletions(-)
 delete mode 100644 arch/arm/mach-socfpga/firewall.c
 delete mode 100644 configs/socfpga_n5x_atf_defconfig

--
2.43.7