34 lines
1.0 KiB
Diff
34 lines
1.0 KiB
Diff
From 110909494f8eeae7470321399978c25d9e3af554 Mon Sep 17 00:00:00 2001
|
|
From: Patrick Yavitz <pyavitz@armbian.com>
|
|
Date: Mon, 13 May 2024 17:45:57 -0400
|
|
Subject: [PATCH] mach-sunxi: dram_helpers: add delay to steady dram detection
|
|
|
|
Signed-off-by: Patrick Yavitz <pyavitz@armbian.com>
|
|
---
|
|
arch/arm/mach-sunxi/dram_helpers.c | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
diff --git a/arch/arm/mach-sunxi/dram_helpers.c b/arch/arm/mach-sunxi/dram_helpers.c
|
|
index 83dbe4ca98..df7845502d 100644
|
|
--- a/arch/arm/mach-sunxi/dram_helpers.c
|
|
+++ b/arch/arm/mach-sunxi/dram_helpers.c
|
|
@@ -11,6 +11,7 @@
|
|
#include <asm/barriers.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/dram.h>
|
|
+#include <linux/delay.h>
|
|
|
|
/*
|
|
* Wait up to 1s for value to be set in given part of reg.
|
|
@@ -45,6 +46,7 @@ bool mctl_mem_matches_base(u32 offset, ulong base)
|
|
writel(0, base);
|
|
writel(0xaa55aa55, base + offset);
|
|
dsb();
|
|
+ udelay(150);
|
|
/* Check if the same value is actually observed when reading back */
|
|
ret = readl(base) == readl(base + offset);
|
|
|
|
--
|
|
2.39.2
|
|
|