From: Andy Yan <andy.yan@rock-chips.com>
Date: Tue, 26 Nov 2019 13:15:38 +0000 (+0800)
Subject: rockchip: rk3308: enable spl-fifo-mode for emmc
X-Git-Tag: v2020.01-rc5~14^2~16
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=081a51c937952b91957873badafa11ad2a025315;p=oweals%2Fu-boot.git

rockchip: rk3308: enable spl-fifo-mode for emmc

We need load some parts of ATF to sram, but rockchip
dwmmc controllers can't do dma to non-ddr addresses
space, so set the mmc controller into fifo mode in spl.

And show my best respect to Heiko's work for this solution.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
---

diff --git a/arch/arm/dts/rk3308-u-boot.dtsi b/arch/arm/dts/rk3308-u-boot.dtsi
index 1a68decef3..f5a595337e 100644
--- a/arch/arm/dts/rk3308-u-boot.dtsi
+++ b/arch/arm/dts/rk3308-u-boot.dtsi
@@ -12,6 +12,8 @@
 };
 
 &emmc {
+	/* mmc to sram can't do dma, prevent aborts transferring TF-A parts */
+	u-boot,spl-fifo-mode;
 	u-boot,dm-pre-reloc;
 };