[PATCH 0/6] mmc: exynos_dw_mmc: Disable FMP for Exynos850

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>


On Sat, 25 Oct 2025 20:06:52 -0500, Sam Protsenko wrote:
> When doing USB boot [1,2] on E850-96 board (based on Exynos850 SoC) it
> was found the eMMC becomes non-functional. The reason why it happens is
> that the FMP (Flash Memory Protector) is enabled in FMPSECURITY register
> (eMMC block) during USB boot.
> 
> In regular boot from eMMC the FMP is disabled by some early bootloader:
> 
> [...]

Applied to mmc/next, thanks!

[1/6] mmc: exynos_dw_mmc: Extend dm_dwmci_ops without code duplication
      commit: f391a1158f3db496ce994b613f76b389ef275552
[2/6] mmc: dw_mmc: Do not export dwmci_send_cmd() and dwmci_set_ios()
      commit: 20b19639cdf86f4fb1289443bc47866a8047b619
[3/6] mmc: exynos_dw_mmc: Improve coding style
      commit: 6f0845fcb2ca687e346b74caae62c5ad418b1879
[4/6] mmc: exynos_dw_mmc: Add quirk for disabling FMP
      commit: 1e665e543c51d665f3fe1f8dc428f86198812ead
[5/6] mmc: exynos_dw_mmc: Add exynos850 compatible
      commit: cd7b26a254c1685f2519b78f6fa11577cdcfc114
[6/6] mmc: exynos_dw_mmc: Disable FMP for Exynos850 chip
      commit: e11db644884242795b01ea10e2949f2f56005b0b

Best regards,
-- 
Peng Fan <peng.fan at nxp.com>