[PATCH] arm: dts: an7581: set r_smpl for MMC in U-Boot

Tom Rini trini at konsulko.com
Sat Jan 17 17:31:52 CET 2026


On Sat, Jan 17, 2026 at 06:33:42PM +0300, Mikhail Kshevetskiy wrote:
> > 			reg = <0x0 0x1fa0e000 0x0 0x1000>,
> > 				<0x0 0x1fa0c000 0x0 0x60>;
> > 			interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
> >+			r_smpl = <1>;
> > 			clocks = <&scuclk EN7581_CLK_EMMC>, <&clk25m>;
> > 			clock-names = "source", "hclk";
> > 			bus-width = <4>;
> 
> On my AN7581 board, the same change in the ATF-2.10 source code causes
> instability in eMMC reading. After the patch, in about 9 of 10 cases, ATF
> is unable to read the FIP image and load BL31 and U-Boot.
> 
> So, I am vote for reverting this change.

OK, can you please post a revert and note the instability as why?
Thanks!

-- 
Tom
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