Hi Jan,

On 25/11/2025 5:41 pm, Jan Kiszka wrote:
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On 25.11.25 09:13, [email protected] wrote:
From: Alif Zakuan Yuslaimi <[email protected]>

Enable support for FAT filesystem with SPL for CycloneV instead of raw
mode.

Recent changes breaks CycloneV MMC boot from raw mode, and so we are taking
this opportunity to migrate MMC boot mode to FAT as smaller OCRAM size is
required, as well as aligning MMC boot flow with our other devices.

Fixes: 2a00d73d081a1 ("spl: mmc: Try to clean up raw-mode options")

Signed-off-by: Alif Zakuan Yuslaimi <[email protected]>
---
  configs/socfpga_cyclone5_defconfig | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/configs/socfpga_cyclone5_defconfig 
b/configs/socfpga_cyclone5_defconfig
index 2bec82b0625..2b2435a27bb 100644
--- a/configs/socfpga_cyclone5_defconfig
+++ b/configs/socfpga_cyclone5_defconfig
@@ -12,6 +12,7 @@ CONFIG_DM_RESET=y
  CONFIG_SPL_STACK=0x0
  CONFIG_SPL_TEXT_BASE=0xFFFF0000
  CONFIG_TARGET_SOCFPGA_CYCLONE5_SOCDK=y
+CONFIG_SPL_FS_FAT=y
  CONFIG_TIMESTAMP=y
  CONFIG_FIT=y
  CONFIG_DISTRO_DEFAULTS=y
@@ -27,6 +28,7 @@ CONFIG_SPL_PAD_TO=0x10000
  CONFIG_SPL_NO_BSS_LIMIT=y
  # CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
  CONFIG_SPL_HAVE_INIT_STACK=y
+# CONFIG_SPL_SYS_MMCSD_RAW_MODE is not set
  CONFIG_SPL_SPI_LOAD=y
  CONFIG_SYS_SPI_U_BOOT_OFFS=0x40000
  CONFIG_SYS_MAXARGS=32
But what about other boards for the cycline5? If you want to switch,
switch them all. This looks half-backed.


The changes only affect the Altera official Cyclone V devkit. Other partner and vendor boards may have different MMC layouts, so we are not touching those in this patch.

The motivation is to enable FAT filesystem support for SPL on the official devkit, which reduces OCRAM usage, aligns the MMC boot flow with our other devkits, and avoids the raw-mode issues introduced by recent changes (mentioned in your series patches).


Thanks

Tien Fong

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