[U-Boot] [PATCH] ARM: socfpga: Unreset NAND in SPL on Gen5

Marek Vasut marex at denx.de
Wed Nov 20 21:36:24 UTC 2019

In case the SPL on Gen5 loads U-Boot from NAND, unreset the NAND IP
explicitly in the platform code as the denali-spl driver is not aware
of DM at all.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Chin Liang See <chin.liang.see at intel.com>
Cc: Dalon Westergreen <dwesterg at gmail.com>
Cc: Dinh Nguyen <dinguyen at kernel.org>
Cc: Ley Foon Tan <ley.foon.tan at intel.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
Cc: Tien Fong Chee <tien.fong.chee at intel.com>
 arch/arm/mach-socfpga/spl_gen5.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-socfpga/spl_gen5.c b/arch/arm/mach-socfpga/spl_gen5.c
index 47e63709ad..408e409375 100644
--- a/arch/arm/mach-socfpga/spl_gen5.c
+++ b/arch/arm/mach-socfpga/spl_gen5.c
@@ -138,6 +138,13 @@ void board_init_f(ulong dummy)
 	if (ret)
 		debug("Reset init failed: %d\n", ret);
+	struct socfpga_reset_manager *reset_manager_base =
+		(struct socfpga_reset_manager *)SOCFPGA_RSTMGR_ADDRESS;
+	clrbits_le32(&reset_manager_base->per_mod_reset, BIT(4));
 	/* enable console uart printing */

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